Metal Stamping Bending Part

 

1.The importance and advantages of stamping processing.

1 Importance: The application range of stamping process is very wide, in all sectors of the national economy, almost all stamping products. Such as automobiles, aircraft, tractors, electrical appliances, motors, meters, railways, posts and telecommunications, chemical and light industrial daily products have a considerable proportion.

Advantages: 1) High productivity. 2) High precision and stable quality. 3) High material utilization rate. 4) Easy to operate, especially suitable for mass production and automation.

 

2.The concept of stamping processing.

1. Concept: that is, the use of a press and its external equipment, through the mold to exert pressure on the plate, so as to obtain a certain shape and size of the processing method of parts.

 

Three elements of stamping processing: punch, mold, material.

Stamping is a kind of processing method widely used in production, which is mainly used for the processing of metal sheet parts. In the entire production system of product parts, stamping is only a subsystem, and it is only a part of the product manufacturing process. With the increase of market requirements on product cost and cycle, it has become an important direction of technology and management development to determine the relevant elements from the overall optimization of the system.

 

3.Mold assembly sequence

1. Preparation

1) Design engineer: provide product drawings, Layout drawings, mold parts drawings, and provide technical guidance;

2) Arrangement and inventory of mold parts: whole group storage, whole group inventory;

3) Mold parts inspection: including template, workpiece shape, size, material hardness is consistent with the drawing;

4) Parts engraving: Engraving die number and part number on the non-working surface of each workpiece;

5) Demagnetization of parts: removal of processing magnetism;

6) Clean, polish and demagnetize the template: remove the iron filings, debris and oxide layer on the surface of the template and inside the frame;

7) chamfer: including the chamfer of the inlet, the die nut, the template frame mouth and the side chamfer of the punch entrance of the stripper plate;

8) Test matching: test matching of the whole group of punches and punches and die nuts to ensure that the punches can move freely in the punches;

9) Standard parts: standard punch, insert, die, leading column whole group, pay guide column whole group, glue Pin, Pilot,Lift, Stopper, Disk, contour sleeve, pressure plate, spring, positioning pin, stripping sleeve, gasket, screws, etc.

2. mold set up

1) Lower mold filling: The lower template is precisely positioned through the positioning Pin and the lower mold seat, and is fastened by the screw, and the filling pin between the two is filled with 680 glue. This process needs to ensure that the adhesive is firmly bonded;

2) Upper die gluing: When Gauge or guide column are used to ensure the accurate positioning of the upper and lower formwork and their parallelism, the upper formwork and upper die seat are secured by screws. The filling PIN between the two is filled with 680 glue. This process should ensure the parallelism and position accuracy of the upper and lower molds, and also ensure that the 680 adhesive is firmly bonded;

3) Mold assembly: Close the upper mold with the lower mold. After checking the template gap to ensure the parallelism, use AB glue or quick-drying glue to fill the leading column. This process to ensure that the leading column is not higher than the upper die seat and the adhesive bonding must be strong, the leading sleeve is less than the upper die seat surface of about 5mm;

4) Stripper board assembly: the stripper board into the Pilot, stripper plate forming workpiece, stripper sleeve (push rod) into the stripper board, at this time to ensure that the stripper board into the child is not higher than the stripper board, in addition, ensure that the stripper board backplane can prevent the step into the child, formed workpiece, Pilot, stripper sleeve, etc.;

5) The formation of the lower template: the punching die, the forming die, the Lift, the guide plate, etc., are installed on the fixed plate of the die. This process should ensure that the punching die can not be higher than the die surface, the punching die edge is facing up, and the Lift and other moving die can move freely. In addition,Check whether the waste is unimpeded,Check whether the stripper plate can stick to the lower template, and Check whether the blanking gap and position are OK by inserting the blanking punch through the stripper plate and using the paper cutting method;

6) The upper template assembly: the punch fixed plate into the child, the punch into the upper template, and the press plate to fix the punch, also ensure that the child can not be higher than the die surface. Check whether the stripper backplane (S02A) and punch fixing plate (P01A) are glued.

7) Die closing: in the upper and lower die without spring, let the eight plates stick to see whether the relative position of the punch and the stripping plate is correct, whether the lower template interferes with the forming punch, etc.;

8) Install Stopper, Disk, contour sleeve, spring, Sensor, suction device, etc., and print mold parameters such as mold number, material number, Pitch, and raw material number on the front of the mold base.

3.mold comprehensive review

1)Check spring: Shape the active punch with green or brown spring, and consider the spring stroke; Press material spring with rectangular spring, float material with wire spring;

2) Whether the connection and fastening between the parts of the mold are firm;

3) Whether the safety detection device is complete and the performance is reliable;

4) Whether the internal gas path of the mold is smooth;

5) Whether the relative movement of each component is free;

Finally, the mold drawing is modified according to the configuration modification of the workpiece.

 

 

 

 

 

 

 

 

 

CONTACT US

Alex He

Tel:+86 15989331617

Whatsapp&Wechat:+86 15989331617

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Email: alex.he@innolead.net

 

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