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Stamping method of car engine parts

A technology for automobile engines and accessories, which is applied in the field of stamping of automobile engine accessories, which can solve the problems of uneven warping, affecting product quality, and excessive burrs, so as to prevent tearing, improve product quality, and reduce feeding resistance Effect

Inactive Publication Date: 2018-12-11
ZHAOQING FENGCHI PRECISION METALWORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the stamping process of this invention, there are defects of wrinkling, excessive burr and uneven warping of the workpiece, which affect the product quality. Therefore, we propose a stamping method for automobile engine parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First, the sheet blank is processed into various parts with complex shapes under the action of a convex and concave die with a certain fillet radius; then the excess waste around the part is cut off by trimming, and the parts of the required shape are processed into the parts on the plate Punch out holes of the required shape on the material or parts (the punched out is waste), and finally punch out the required shape of the part (or blank) from the sheet; bend the sheet or profile into a certain shape and angle, Thereby the finished automobile engine parts are obtained.

Embodiment 2

[0025] In embodiment one, add following operation:

[0026] In step (1), increase the blank-holder force by adjusting the blank-holder ring or re-develop the deep-drawing bead to avoid wrinkling on the surface of the part; in step (1), adjust the height of the outer slider or reduce the air cushion pressure to reduce the Small blank holder force, so as to reduce feeding resistance and prevent tearing, or through the development of drawbeads, reduce feeding resistance and prevent tearing.

[0027] Firstly, the sheet blank is processed into various parts with complex shapes under the action of a convex and concave die with a certain fillet radius; by adjusting the blank holder ring to increase the blank holder force or re-developing the drawing rib to avoid wrinkling on the surface of the part ;By adjusting the height of the outer slider or reducing the pressure of the air cushion to reduce the blank holder force, thereby reducing the feeding resistance and preventing tearing, o...

Embodiment 3

[0029] In embodiment two, add following operation:

[0030] In step (2), the blanking press and shearing machine are used to cut and blank the plate, so as to provide blanks for the production of the stamping line; in step (2), in order to avoid excessive burrs, a reasonable value is achieved through the grinding and matching gap , It needs to be lubricated in time and sharpened regularly during operation.

[0031] Firstly, the sheet blank is processed into various parts with complex shapes under the action of a convex and concave die with a certain fillet radius; by adjusting the blank holder ring to increase the blank holder force or re-developing the drawing rib to avoid wrinkling on the surface of the part ;By adjusting the height of the outer slider or reducing the pressure of the air cushion to reduce the blank holder force, thereby reducing the feeding resistance and preventing tearing, or through the development of drawbeads to reduce the feeding resistance and prevent...

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PUM

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Abstract

The invention discloses a stamping method of car engine parts. The stamping method includes the steps of firstly, drawing, to be more specific, machining plate blank into various complex-shaped partsunder the effect of a punch-die with certain fillet radius, wherein part surface wrinkling is avoided by adjusting a blank holder to increase blank holder force or grinding draw beads again; secondly,trimming, punching and blanking, to be more specific, cutting off redundant part of waste materials from the peripheries of the parts through trimming to obtain parts of required shapes, punching holes of required shapes in the plate materials or parts, and separating parts of required shapes from the plate materials through blanking; thirdly, bending the plate materials or profile materials to achieve certain shapes and angles to obtain the finished car engine parts. The stamping method has the advantages that common defects in procedures are avoided, product quality is increased, the defects such as product wrinkling, excessive product burrs and product warpage existing in the stamping process in the prior art are overcome, and product quality can be prevented from being affected by thedefects.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a stamping method for auto engine parts. Background technique [0002] Stamping is a forming processing method that applies external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation to obtain workpieces (stamping parts) of required shape and size. Stamping and forging belong to plastic processing (or pressure processing) and are collectively called forging. The blanks for stamping are mainly hot-rolled and cold-rolled steel sheets and strips. Among the steel products in the world, 60-70% are plates, most of which are stamped into finished products. The body, chassis, fuel tank, radiator fins of the car, the steam drum of the boiler, the shell of the container, the iron core silicon steel sheet of the motor and electrical appliances, etc. are all stamped. There are also a large number of stamping parts in products su...

Claims

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Application Information

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IPC IPC(8): B21D35/00
CPCB21D35/001B21D35/002
Inventor 张长权
Owner ZHAOQING FENGCHI PRECISION METALWORK