Die assembly for piston manufacturing

A mold and component technology, which is applied in the field of mold components for piston preparation, can solve the problems of high axial requirements for equipment tonnage and difficult molding, and achieve the effects of saving costs, reducing equipment loss, and ensuring product quality

Pending Publication Date: 2021-11-26
江苏力野精工科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] In the prior art, cup-shaped piston products with both ends are formed in the middle, which is difficult to form and requires high axial tonnage of equipment; at the same time, this type of product requires high appearance precision, the cups and barrels at both ends must be concentric, and the inner and outer diameters have no pull Injuries, high precision requirements for molds and equipment

Method used

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  • Die assembly for piston manufacturing

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Embodiment Construction

[0010] The present invention is further described and understood by non-limiting examples below.

[0011] Such as figure 1 As shown, the present invention provides a mold assembly for piston preparation, comprising an upper die 11, a lower die 21, a left die 3 and a right die 4 that are horizontally arranged on the left and right sides of the lower die 21, fixed on the left die The left punch 31 at the end of 3, the right punch 41 fixed at the end of the right die 4, the upper die 11 is provided with the upper die frame 1 for fixed connection with the power output end of the forging machine, and the lower die 21 The lower part of the piston is fixedly installed on the operating platform 2, and the ends of the left punch 31 and the right punch 41 are arranged facing each other. In order to ensure that the two ends of the piston are concentric, the left punch 31 and the right punch 41 are arranged axis. The left side die 3 is provided with the left side drive channel 32 for dr...

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Abstract

The invention discloses a die assembly for piston manufacturing, and belongs to the field of piston manufacturing. The die assembly comprises an upper die, a lower die, a left side punching die, a right side punching die, a left side punch and a right side punch, wherein the left side punching die and the right side punching die are horizontally arranged on the left side and the right side of the lower die, the left side punch is fixed to the end of the left side punching die, and the right side punch is fixed to the end of the right side punching die. According to the die assembly, the upper die and the lower die are combined and provided with side punching stretching die structures, and therefore the forging and pressing process is divided into rough forging and finish forging; and when the die assembly is used for piston forging and pressing, the middle portion of the upper die and the middle portion of the lower die are formed firstly, then the punches at the two ends carry out side punching stretching on the two ends to form a barrel shape, and therefore material flow is smooth, and the appearance precision size of a product is in place. According to the die structure, part discharging is convenient and rapid, the product quality is ensured, and the die assembly has the beneficial effects that the number of procedures is reduced, benefits are increased, die cracking is prevented for reducing forging pressure, equipment losses are reduced, and cost expenditure is saved.

Description

technical field [0001] The invention relates to the field of piston preparation, in particular to a mold assembly for piston preparation. Background technique [0002] In the prior art, cup-shaped piston products with both ends are formed in the middle, which is difficult to form and requires high axial tonnage of equipment; at the same time, this type of product requires high appearance precision, the cups and barrels at both ends must be concentric, and the inner and outer diameters have no pull Injury, high precision requirements for molds and equipment. Contents of the invention [0003] The object of the present invention is to provide a mold assembly for piston production. [0004] The technical solution of the present invention is: a mold assembly for piston preparation, including an upper mold, a lower mold, a left punch and a right punch horizontally arranged on the left and right sides of the lower mold, and a left punch fixed at the end of the left punch. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21K1/18
CPCB21J13/02B21K1/18
Inventor 王鹏张延飞钱玉冬
Owner 江苏力野精工科技有限公司
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