What is the need to pay attention to in the maintenance of stamping parts?

Today, deep drawing parts are widely used in all areas of our lives. In order to properly prolong the service life of drawn stampings, careful maintenance is required. So, what should be paid attention to when maintaining it? The following Zhejiang Baifudu Electromechanical editor will take you to understand!

Before installation and use of stretch stamping parts, the stamping parts should be strictly inspected and the dirt should be removed, and the guide bushes and dies of the stamping parts should be carefully checked whether they are well lubricated.

According to the installation steps of the stamping die, install the stamping die and the stamping die on the turntable to ensure that the direction of the stamping die and the stamping die are consistent, especially the stamping parts (non-circular and square) with the required direction are larger. Take care to prevent assembly errors and gaps.

When the edges of the punch and the die of the stamping part are worn, it should be stopped in time for grinding. Otherwise, the degree of die edge wear will rapidly expand, the die wear will be accelerated, and the quality of stamping parts and die life will be reduced.

Regularly check the turntable of the punch and the mounting base of the die to ensure the coaxial accuracy of the upper and lower turntables.

When installing the mold, the press mold should be made of soft metal (such as copper, aluminum, etc.) to make operating tools to avoid damage to the tension part during installation.

To ensure the service life of the stretch stamping parts, the spring of the mold should be replaced regularly to prevent the spring fatigue damage from affecting the use of the stretch stamping parts.

The service life of stretch stamping parts depends not only on reasonable die structure, superb manufacturing accuracy, good heat treatment effect, and the correct selection of punches and the installation accuracy of stretch stamping parts, but also on the correct use, maintenance and maintenance of the die. Therefore, we must eliminate the adverse effects of various factors on the service life of drawing and stamping parts, and take effective measures to improve their service life.

How to improve the precision and efficiency of precision sheet metal processing?

Precision sheet metal processing accuracy is not only a representative of the company’s processing strength, but also a test for sheet metal processing masters! Whether it is a sheet metal processing factory or an individual who performs sheet metal processing operations, it may often occur that the sheet metal processing accuracy is not ideal. Common methods to improve sheet metal machining accuracy include original error reduction method, original error compensation method, original error transfer method, original error equalization method and original error equalization method, which are commonly used methods to increase the sheet metal machining accuracy.

Original error reduction method: In production, if errors are found, first find out the main factors that affect processing errors, and then find ways to eliminate or reduce these factors. For example, when machining parts with contours, the shape error of the forming tool and the installation error of the tool are mainly reduced.

Original error compensation method: artificially create a new error to offset the original error in the process system. When the original error is negative, the human error takes a positive value, otherwise it takes a negative value, and try to make the two equal.

The original error equalization method: If the positioning error is large, some original errors can be differentiated. That is, the original error is divided into N groups according to its size, the range of each group of blank errors is reduced to the original 1/n, and then the processing is adjusted according to each group.

Original error averaging method: For parts with higher machining accuracy, the averaging method can be used. That is to compare closely related surfaces with each other, find out the differences from the comparison, and then perform mutual correction or mutual reference processing, so that the error of the workpiece surface is continuously reduced and averaged.

Original error transfer method: Under certain conditions, the original error of the process system can be transferred to the direction of the machining error or other aspects that do not affect the machining accuracy. For example, when the accuracy of the machine tool cannot meet the machining requirements of the parts, we can find a way to transfer the geometric error of the machine tool to the aspect that does not affect the machining accuracy.

What are the procedures and principles of die assembly for metal stamping parts?

In fact, the key to stamping die assembly is how to ensure that the relative positions of the convex and concave dies installed on the upper and lower die seats and related components can work normally, and stamping workpieces that meet product requirements.

Therefore, it should be mentioned that the various parts to be assembled must meet the processing requirements of the assembly process for various parts; for example, the relative position dimensional accuracy and step distance accuracy of each hole must be consistent with the die and stripper; the backing plate The bolts and pins on the hole leave a large gap through the hole, which can be drilled according to the pattern size. After quenching, the upper and lower surfaces should be strictly flat.In addition to meeting the pattern requirements, the integral concave die installed on the upper die base or the lower die base should also be machined with bolt holes and pin holes. After heat treatment and finishing, it is put into assembly, and the fixed die base and guide plate should be connected. When assembling, drilling and reaming should be carried out according to the corresponding holes on the die; based on this, although the die types and structural characteristics of metal stamping parts are different, the assembly method and installation sequence are also different, but the assembly principles to be followed are the same of.

When assembling the metal stamping part mold, it is first necessary to select the assembly reference part, use it as the assembly reference of the metal stamping part mold, and then gradually assemble other mold parts according to the reference part. The choice of the reference part depends on the structural characteristics of the metal stamping part die. The guide plate die should be selected as the guide plate that doubles as the stripper plate as the assembly reference part. The metal stamping part dies guided by the guide post usually use the concave die as the assembly reference part. The blanking and punching compound die selects the ejector plate as the assembly reference part, and the center of the die handle is the prerequisite for the alignment of the output center point of the ejector plate.

After selecting the reference parts, assemble the components of the metal stamping part mold into a composite part according to the separate connection relationship between them, and then assemble the metal stamping part mold with the reference part as the assembly reference.

What are the tips for stainless steel sheet metal processing?

When processing stainless steel sheet metal parts, in order to avoid debris from hurting people, the baffle should be lit in an appropriate position. When the surface of the workpiece needs to be polished with gauze, move the tool to a safe position and be careful not to let your hands and clothes touch the surface of the workpiece. When grinding the inner hole, don’t use your fingers to support the gauze, use a wooden stick instead, and don’t drive too fast.

Obstructs placing objects, fixtures or workpieces on the lathe bed and spindle gearbox. Be mindful when doing homework. Obstruct tired operation, chat operation, multi-person operation, drinking operation, smoking operation.

Adhere to the regularity of machine tools, tools, and operations, and do a good job of handover work. When cleaning the workplace after work, the power should be turned off, and various feed handles should be placed in a safe place. When turning workpieces with irregular shapes, a balance block should be installed, and the cutting should be carried out after trial rotation.

The tool clamping should be reliable, and the protruding part of the tool head should not exceed 1.5 times the height of the tool body. The shape and specification of the gasket under the tool should be consistent with the shape and specification of the cutter body, and the gasket should be as few and flat as possible.

In addition to installing measuring tools on the lathe that can be actively measured in operation, stop and move the tool holder to a safe position before measuring the workpiece. Ribbon chips and spiral long chips that occur during cutting should be removed with hooks in time to prevent hand pulling.

Wear work clothes, cuffs and safety glasses before work. Female workers should wear work caps, long hair in hair care caps, and operate with gloves.

When the chuck is loaded and unloaded on the spindle of the lathe, it must be carried out after the machine is stopped. The power of the motor must not be used to remove the chuck. Guards should be used for the protrusions of chucks, dials and core clamps that clamp the workpiece to avoid strangling clothing and other parts of the body. If there is no protective cover, care should be taken to adhere to the required interval during operation.

When clamping the workpiece with the top, it should be noted that the center of the tip is exactly the same as the center hole of the spindle. Sheet metal work must not use damaged or angled tips. Before use, the top should be cleaned, the center hole should be clean, and the tailstock tip should be firm. When cutting slender workpieces, in order to ensure operational safety and processing quality, a tracking tool rest or center rest should be selected, and a mobile protective cover and safety signs should be set.

Sheet metal processing electronic chassis cabinet cleaning method

Most customers have encountered the situation that the electronic chassis cabinet becomes dirty, so how should we clean it effectively? Today, the editor of Zhejiang Baifudu Electromechanical will give you a brief introduction.

1. Cleaning method of sheet metal processing electronic chassis cabinet

Primer: Fills the sand marks and micropores on the bottom layer of the workpiece, increases the adhesion of the underlying coating, and also has the function of defect indication.

Topcoat: Topcoat is divided into single-layer paint and multi-layer paint, which is the color-determining layer and decorative protective layer. Single-layer paint is commonly known as plain paint, also known as ordinary paint, and one layer can be completed. Talking about sheet metal processing multi-layer paint is divided into silver powder series paint and pearl series paint, divided into two-layer and multi-layer construction technology. The silver powder paint is made of special aluminum material, which has high protection, strong outdoor stability and strong observability. Pearl series paint is made of high-tech materials such as mica flakes and shells. It is a high-grade paint with rich colors and strong decoration.

Some topcoats have a very high spray quality. It is really easy to achieve clean, plump, bright, non-sagging, non-hanging, uniform luster, no leakage, no spraying, good leveling, no bottom bite, no impetuous, no color cast. It requires extensive experience and problem-solving skills.

Intermediate primer: a very important coating part, prepare a complete and smooth working surface for the topcoat, complete the next process of the primer work, increase the adhesion of the intermediate layer, and have an isolation effect, thereby ensuring the quality stability of the topcoat.

There should be a gap between the equipment, which is conducive to the ventilation and heat dissipation of the equipment. For precision sheet metal processing, some gaps should be left on the top of the equipment on the higher layer, so that the fan can be replaced in the future for better heat dissipation. Taller cabinets can hold more equipment, thus saving more space. After you have designed the cabinets you need to use later, reserve some spare space, because once the cabinets are purchased and installed, there will often be some additional equipment. There is no extra space for system expansion, and then it will be a headache.

What are the five processing methods commonly used in stainless steel sheet metal processing?

1. Five processing methods commonly used in stainless steel sheet metal processing

1. The stamping sheet metal processing manufacturer explains the method of selecting a single stamping. Precision sheet metal processing manufacturers introduce the use of a single stamping to complete the processing of metal piano parts that are scattered in circular arcs or pinholes, grids, etc., and then complete the separation of metal structures in a short time, making metal products forming.

2. Single or repeated sheet metal processing methods. On the basis of relying on CNC machine tools, the metal parts can be stretched and formed at one time according to the selection requirements of the mold, and then the metal parts matching the existing mold can be obtained. However, if the metal parts after the above treatment do not meet the expected requirements, the processing should be repeated to form the shape.

3. Select the method of continuous cutting. This stainless steel sheet metal processing method can be divided into two types: unidirectional and multidirectional. At the same time, the multi-directional cutting method is generally suitable for the layer processing of large metals or the forming of metal holes, while the unidirectional processing method is suitable for the processing of stacking multiple metal parts. The mechanical viewing angle and function set by the continuous cutting processing method are different, and different processing effects can be achieved.

4. The method of forming the array. Relying on CNC machine tools is generally to meet the needs of mass production. Rapid machining of large sheet metal products can be accomplished by a combination of several existing dies. In this process, the style and type of sheet metal products are selected together, and then the planning of the pattern forming method template is facilitated.

5. Follow-up finishing. This blanking method, also known as cannibalization, is mainly used for post-processing of grinding and finishing metal parts. Generally speaking, the processing and grinding of this process include small round molds, small arc molds, etc., and then play a role in clear positioning and precision grinding during the processing.

Take you to see what methods are available for laser cutting in sheet metal processing

1. Summary of sheet metal processing laser cutting skills

There are many tips for the application of fiber laser cutting machine, which can greatly advance the power of the machine.

1. Use a vacuum cleaner at least once a week to remove dust and residue from the machine. All electrical cabinets should be sealed to prevent the entry of dust.

2. The dual focal length laser cutting on the laser cutting machine is a relatively simple loss item at the beginning, and long-term use will make the laser cutting worse.

3. Repair the steel belt of the fiber laser cutting machine on time to ensure that the steel belt is tight. Because once there is doubt in the work, it is very likely to cause some harm to people, or even serious enough to kill the operator.

4. Regularly organize the guide rails of the fiber laser cutting machine to remove dust, waste and other debris on the guide rails. In order to ensure the normal operation of the machine, the rack should be wiped frequently, and a certain amount of lubricating oil should be added on time to ensure that there is no debris in the lubrication. The guide rail should be cleaned and lubricated frequently, and the motor should be cleaned and lubricated on time to ensure the correct and accurate work of the machine. This effect is naturally an improvement in the quality of the cut.

5. Check the straightness of the fiber laser cutting equipment track and the verticality of the machine on time. The inspection period should not exceed half a year. If any damage or consumption is found, maintenance and commissioning should be carried out immediately. In this way, the cutting effect number and cutting failure of the machine will be reduced a lot, and the improvement of cutting quality is also a reasonable work.

The above are some tips and precautions for laser cutting in sheet metal processing. There are many ways to improve the power and effectiveness of laser cutting equipment. Mastering and using the methods and skills of these fiber laser cutting machines will undoubtedly be of great benefit to our work, and will also have a great effect on the quality of the cutting products.

What are the terms of sheet metal processing?

1. Sheet metal processing terminology

1. Material shearing: refers to the process of obtaining a rectangular workpiece through a shearing machine.

2. Blanking: refers to the process of cutting workpieces with lasers or punching workpieces with CNC punching machines.

3. Blanking: refers to the process of processing the shape of the product with a mold on an ordinary punch or other equipment.

4. Stamping: refers to the process of stamping workpieces with ordinary punches and dies.

5. Bending: refers to the process of forming the workpiece with a bending machine.6. Forming: refers to the process of deforming the workpiece by using a mold on an ordinary punch or other equipment.

7. Hole drawing: Also called “flanging”, it refers to the process of turning up the edge of the round hole on the workpiece with a die on an ordinary punch or other equipment.

8. Tapping: refers to the process of machining internal threads on the workpiece.

9. Reaming: refers to the process of machining small holes on the workpiece into large holes with a drill or milling cutter.

10. Countersunk hole: refers to the process of machining a tapered hole on the workpiece to match with a connector such as a countersunk head screw.

11. Riveting: refers to the process of firmly crimping fasteners such as riveting nuts, riveting screws or riveting studs on the workpiece with a punch or hydraulic press.

12. Riveting: refers to the process of first countersinking the workpiece, and then using a punch or hydraulic press to firmly crimp the rivet nut on the workpiece.

13. Pull mother: refers to a process similar to riveting. The process of firmly connecting connectors such as rivet nuts (POP) to the workpiece with a pull mother gun.

14. Pull riveting: refers to the process of tightly connecting two or more workpieces with pull rivets using pull rivet guns as tools.

15. Riveting: The process of connecting two or more workpieces face-to-face with rivets. For countersunk riveting, the workpieces need to be countersunk first.

16. Punching and convex hull: refers to the process of forming a convex shape on the workpiece with a die on a punch or hydraulic press.

17. Punching and tearing: also known as “punch bridge”, which refers to the process of forming a workpiece into a bridge-like shape with a die on a punch or hydraulic press.

18. Imprinting: refers to the process of using a mold to punch out characters, symbols or other imprints on the workpiece.

19. Corner cutting: refers to the process of cutting off the corner of the workpiece using a die on a punch or hydraulic press.

20. Punching mesh holes: refers to punching out mesh holes on the workpiece with a die on an ordinary punch or a CNC punch.

What are the five use skills of laser cutting technology?

1. Five skills of sheet metal processing

1. The dual-focus laser cutting head is a wearing part on the laser cutting machine, which will be damaged after long-term use.

2. Check the straightness of the laser cutting machine track and the verticality of the machine every six months. If any abnormality is found, repair and debug it in time. Vacuum the dust and dirt from the machine once a week. All electrical cabinets should be tightly closed to prevent dust.

3. Always check the steel belt of the laser cutting machine to make sure it is tight. Otherwise, someone could be injured or even killed if the operation goes wrong. The steel belt may seem like a trivial matter, but if there is a problem, it is still a bit serious.

4. One thing that needs to be reminded in sheet metal processing is that each guide rail of the laser cutting machine should be cleaned regularly to eliminate dust and other debris, and the frame should be regularly wiped and lubricated to ensure that the lubrication is free of debris.

5. The guide rail should be cleaned and lubricated frequently, and the motor should also be cleaned and lubricated frequently, so that the machine moves better during the traveling process, the cutting is more accurate, and the quality of the cut products will also be improved.

What are the common sheet metal processing materials?

2. Stainless steel

Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, and water, and chemically corrosive media such as acid, alkali, and salt. It is also called stainless acid-resistant steel. In practice, steel that is resistant to weak corrosive media is often called stainless steel, and steel that is resistant to chemical media is called acid-resistant steel. At present, the market of stainless steel is very large, and the application range is also relatively wide.

3. Aluminum plate

Aluminum is a light metal junction material with good corrosion resistance, electrical and thermal conductivity. Under the same weight, the conductivity of aluminum is 2 times higher than that of copper, and the strength of pure aluminum is very low, so it cannot be used as a structural material. Generally, aluminum alloy plates are used for sheet metal processing.

4. Copper plate

Commonly used are copper, brass, bronze and beryllium copper. The appearance of red copper is purple, and it has excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance. However, it is more expensive. It is mainly used as a conductive and thermally conductive material, and is generally used in power supplies that need to carry large currents. Due to its low strength, copper cannot be used as a structural member.

Brass has good ductility and punchability, and has good resistance to seawater and atmospheric corrosion when used for electroplating.

Bronze has better wear resistance than pure copper and brass: good machinability and corrosion resistance. Beryllium copper refers to a copper alloy containing beryllium (Be), which is mostly used as an electromagnetic shielding material.

5. Hot dip galvanized steel sheet

Electroplating or hot-dip galvanizing steel plate with a layer of about 5-12 microns metal zinc, which can prevent corrosion and is widely used in construction, home appliances, automobiles, etc. At present, the performance of hot-dip galvanized steel sheet is very good. First, it has excellent corrosion resistance, paintability, decorative properties and good formability.

The above materials are common materials in sheet metal processing at present. With the continuous improvement of sheet metal processing technology, more and more types of materials will be processed.

Design specification for stamping die forming parts

1. The design of forming parts includes the following four aspects:

1. First of all, it is necessary to consider determining the parting surface of the movable and fixed molds. During the injection molding process, the surface that opens the mold for taking out the plastic part or the gating system is collectively called the parting surface. That is to say, the parting surface is the contact surface between the movable mold and the fixed mold, and its main function is to tightly seal the cavity. The mold designer must determine the opening direction of the mold when designing the parting surface.

2. When designing molding parts, it is necessary to consider the number of cavities and the layout of the cavities, the setting of the pouring system, the core pulling mechanism, the demolding mechanism, the design of the temperature control system, the material selection and heat treatment of the molding parts, etc. See other chapter.

3. Whether the structural form of the movable die and the fixed die is a whole or a block structure, and its structural form and size, block method, fixing method, etc., it is necessary to calculate the cost according to the specific situation, weigh the pros and cons to make the correct choose. The strength and rigidity of the mold should be paid attention to when adopting the combined block structure, see Chapter 16 for details.

4. When designing the size of the molded parts, the molding shrinkage rate of the product, the demoulding slope, and the manufacturing process of the parts should be fully considered.

5. Design molding parts according to the customer’s design standards and requirements and the technical data provided.

Second, the basic principles of mold structure design

1. Make it clear

The mold structure principle is clear, the function of the parts is clear, and there is no omission and repetition. The design of each part is required to be standardized and optimized (the design basis should be unified, the nominal size should be an integer, and it cannot be arbitrarily designed).

2. Simple

The structure is simple and reliable, easy to process and assemble, and the advantage of simplicity is that the cost is directly reduced. For example, try to keep the geometry of the parts simple, minimize the machining surface and processing times of the parts, reduce or simplify the assembly relationship and adjustment measures with the related parts (the related parts must not interfere).

3. Safe and reliable

The mold has sufficient strength and rigidity, and the continuous operation of the mold will not cause problems, which is convenient for mold maintenance

4. Maintenance

The product ejection and demolding mechanism is safe and reliable.

The molding efficiency of the products is high and the quality is good. Such as: high cooling rate, short molding cycle, and balanced pressure in the gating system. The designed mold, after the plastic part is formed, its runner and gate are easy to remove.

3. Design steps of forming parts

When designing the molding parts of movable and fixed molds, it is necessary to comprehensively consider related issues. After determining the mold structure and gating system, the design can generally be carried out according to the following steps.

1. Determine the number of mold cavities and preliminarily determine the cavity layout.

2. Determine the parting line of the plastic part and the parting surface of the mold.

3. Determine the gate form and feeding position of the gating system.

4. If there are concave and convex shapes inside and outside the plastic parts, it is necessary to design a lateral core pulling mechanism.

5. Determine whether the molded part is integral or insert, and its combination and structural fixing.

6. After the above relevant factors are determined, it is necessary to comprehensively consider the mold structure and overall layout.

7. Determine the inner and outer shape and molding size of the core and cavity, and determine the demoulding slope of the part.

8. Determine the technical requirements for the material, heat treatment, assembly requirements, surface roughness and other technical requirements of the movable and fixed mold forming parts.

Fourth, the method of determining the number of cavities

There are many ways to determine the number of cavities. The design is mainly based on the precision of plastic parts, the batch of products, the economy of production, the clamping force of the injection molding machine and the injection volume. The first is the accuracy of the plastic parts, and then other factors are considered, and the number of cavities is required to be reasonably selected. Usually, the number of cavities with high precision is at most 4, and for the number of mold cavities with low precision, it is best not to exceed 24. Because, every time the number of cavities increases, the accuracy will decrease accordingly.

What is the difference between precision stamping parts and ordinary stamping parts?

1. Processing of precision metal parts stamping parts Metal and plastic processing

1. Furniture hardware manufacturing is a process technology, which requires relatively high cooperation of various materials, mainly a relatively simple artificial assembly line production method. Purchasing management needs to focus on ensuring the timely delivery and quality of delivery of materials.

2. Some products have complex structure, although the sparrow is small, it has all the internal organs. When the operation cannot be mechanized on a large scale, reject rates and rejects can occur, simply having a negative impact on the entire production system.

3. Large consumption of working capital. As many hardware companies, the payment term is often dozens of days or months, and many companies’ funds are firmly fixed on the production line. In particular, foreign trade processing enterprises are highly competitive, and many customers use post-payment methods. In the case of price determination, furniture hardware enterprises are likely to lose greater profits due to changes in material prices and exchange rate issues.

4. The cost of raw materials accounts for a high share of the product price. Therefore, if the cost of raw materials can be reduced, it will have a great effect on increasing the profits of hardware enterprises. However, the general hardware profit is low, and it is a low value-added product. The raw materials of various products account for 70% of the product price. In the case of serious waste of materials, high logistics and storage costs, and late supply, the cost of hardware companies will increase significantly, squeezing their profit margins, not only making the entire production and operation lag, but also producing a large number of defective products.

Three elements of precision electronic stamping parts: At present, most of the automation equipment is used, so labor costs can be saved; due to the high stamping production efficiency, easy automation and mechanization, stamping equipment, stamping materials, stamping technology, dies and personnel can only cooperate with each other to take out stamping For parts, usually the stamping stroke can reach tens to hundreds of times per minute, and the high-precision stamping can also reach thousands of times. It is easy to produce and is generally achieved by stamping.

When producing precision electronic stamping parts, it is necessary to ensure the shape and size of the stamping parts, and customize the product mold so as not to damage the surface quality of the parts. In addition, the mold can be mass-produced, the quality is stable, and the parts can be copied, which is a good processing solution.

The above are the advantages of precision electronic stamping parts introduced by Zhejiang Balford Electromechanical Editor and everyone. I hope the above content will be helpful to everyone!

What should I do if the wire cutting process is unstable?

First, let’s talk about how the wire cutting is processed under stable conditions – the molybdenum wire moves close to the workpiece until the gap is ionized and broken down, and the spark discharge will form corrosion under the action of extreme effects and thermal melting effects. The explosion and cleaning of the coolant makes the corrosion quickly drain out, and the new or high dielectric coefficient coolant ionizes the gap to restore the insulation, the gap expands, and the molybdenum wire is similar to the workpiece.

If any of the above-mentioned process factors, it will lead to unstable processing. After summarizing, the current problems and solutions are as follows:

1. The thickness of the workpiece to be cut is long, and the discharge distance is long, and it is difficult for water to enter. Cut high parts as far as possible with water-based cutting fluid. The water-based cutting fluid has significantly stronger chip removal ability than oil-based cutting fluid, and the flushing effect is better, and the cutting parts are much faster than oil-based fluids. Friends can try the effect of Suntory’s own Liangjie water baseline cutting fluid.

2. Material impurities, so that sampling and gap tracking are inaccurate. This situation is generally a common problem encountered in the shearing of iron castings.

3. The water explosion, cleaning, ionization elimination ability is poor, and the active ingredients are few. Mainly because the wire cutting working fluid is used for a long time and the working components are consumed too much, it is recommended to replenish or replace the new fluid in time.

4. The wire speed and trajectory are unstable, and the gap is chaotic. Check the line for vibration, check the bearings.

5. The material is deformed by stress, and the local elasticity is large, and the slight deformation of the cutting seam eats up the discharge gap. It is best to rest the workpiece material before cutting to relieve internal stress.

6. The frequency conversion tracking is tight and uncomfortable, and it is far away from the linear area of ​​sampling voltage and frequency conversion speed. The frequency conversion must be adjusted.

7. The block of coordinate movement and the accumulation of thrust (crawling) make the discharge gap uncertain, and the tracking is inaccurate.

8. The inlet impedance is large or the contact is poor, and the sampling is unstable or far away from the discharge point. until the gap is identified incorrectly.

What are the reasons for the appearance defects of stamping parts?

When processing stamping parts, problems such as impact lines, slip lines, collapses, dark pits, and surface distortions occasionally occur. For stamping parts, the appearance of defects cannot be allowed to appear. How is this situation? Forming?

1. The main reason for the impact line and the slip line is the impact of the stamping process. After the sheet metal and the die are not in contact, the surface scratches are generated by mutual friction at the stress concentration point. Collapse, dark pit.

2. The torsion of the surface is mainly caused by the incomplete deformation of the parts. The local material has a small strain during use, and the external force will release a large number of defects that appear later.

First, how to eliminate these defects?

1. To eliminate the impact line, you can change the stamping fillet, die fillet, increase the drawing depth, change the pressing surface and other methods.

2. By changing the product shape (left and right symmetry) and increasing the resistance, the slip line can be eliminated.

3. Eliminate the collapse and surface distortion, understand the stress gradient level of the parts in the deformation area, and try to ensure the uniformity of the plastic deformation of the product. At the same time, by increasing the resistance and improving the local shape strain.

With the continuous innovation of cae simulation and application with technological progress, more and more shortcomings can be found in the simulation. For example; you can understand the flow of the material through the formed tangent shift field to help better solve the defects generated when the part is formed.

What problems should be paid attention to when dealing with scrap metal stamping parts?

Generally speaking, in the production process of metal stamping parts, because metal stamping parts are produced in large quantities, there will be many wastes, and we all know that dealing with these metal stamping wastes is a very dangerous job, so Generally, we use automatic equipment for processing, but some scraps have to be processed manually. So what are the problems that need to be paid attention to when dealing with metal stamping scraps early? The following Zhejiang Baifudu Electromechanical editor will take you to understand!

First of all, we must be clear that metal stamping waste packaging processing is divided into two types, one is automatic processing, and the other is non-automatic processing.

1. Safety measures for automatic processing of waste metal stamping parts

1. When we use ordinary plates for stamping processing, the scrap of metal stamping parts will be conveyed by the conveyor belt, because the scrap shredder is cut short, and then pressed into squares by the press.

2. The waste is wound through the take-up reel. In fact, the appearance of the take-up reel is similar to that of the strip reel. The scrap after metal stamping can be used as material for other parts. Since the take-up reel motor is independently driven, it can also be driven by a press or a feeding mechanism.  

3. Set a cutter on the metal stamping die to cut off the waste, and then transport it to the briquetting block at the baler through the conveyor belt. When carrying out the press, be sure to separate a distance and cut it once.

2. Safety measures for non-automatic processing of scrap metal stamping parts

1. When the scraps of punching holes are discharged obliquely, the scraps should be automatically layered and crushed, and at least 100 scraps should be stored on the upper die or the lower die base. If two local wastes are grouped together, there should be enough space for stacking.

2. Try not to have sharp corners or burrs in waste disposal to prevent injury to people, and the size of waste should be appropriate to prevent operators from hurting operators when they are nearby.

3. When the waste passes through the pipeline, pay attention to the poor width and height on the straight line, which is easy to block, and try to prevent more than two kinds of waste on a pipeline from passing through.

4. The chute for removing waste must lead to the end of the backing plate and be aligned with the opening of the waste pit. When installing the chute, pay attention to whether the screws of the metal stamping die are tightened.

5. If the metal stamping waste cannot fall by its own weight, once it hangs at the cutting edge, it should be forced to fall by using throwing, ejecting and other falling aid equipment.

6. In order to ensure safety, a protective cover should be set up when non-automatic processing of metal stamping scraps nearby, and the scraps should not flow out or scatter near the operator during operation.

The above is a brief introduction to the issues that should be paid attention to when dealing with metal processing waste. It is also reminded that the personnel engaged in waste packaging must pay attention to safety and prevent the occurrence of dangerous events.