CN215845481U

CN215845481U - Mold assembly for piston preparation

Info

Publication number: CN215845481U
Application number: CN202122410761.2U
Authority: CN
Inventors: 王鹏; 张延飞; 钱玉冬
Original assignee: Jiangsu Liye Precision Technology Co ltd
Current assignee: Jiangsu Liye Precision Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-18
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a die assembly for piston preparation, which belongs to the field of piston preparation, and comprises an upper die, a lower die, a left side stamping die and a right side stamping die which are horizontally arranged at the left side and the right side of the lower die, a left side punching head fixed at the end part of the left side stamping die, and a right side punching head fixed at the end part of the right side stamping die, wherein the die adopts an upper and lower die closing structure with a side punching and stretching die structure, so that the forging process is divided into rough forging and finish forging; the die structure provided by the utility model is convenient and rapid to discharge, ensures the product quality, and has the advantages of reducing working procedures, increasing benefits, preventing die cracking for reducing forging pressure, reducing equipment loss and saving cost expenditure.

Description

Mold assembly for piston preparation

Technical Field

The utility model relates to the field of piston preparation, in particular to a mold assembly for preparing a piston.

Background

In the prior art, a piston product with two cup-cylinder-shaped ends is formed in the middle, so that the forming is difficult, and the requirement on the tonnage axial direction of equipment is high; meanwhile, the product has high requirement on the precision of the appearance, the cup barrels at two ends are concentric, the inner diameter and the outer diameter are not damaged by pulling, and the requirement on the precision of a die and equipment is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mould assembly for piston preparation.

The technical scheme of the utility model is as follows: the utility model provides a mould assembly for piston preparation, which comprises an upper die, the lower mould, the level sets up left side die and right side die in the lower mould left and right sides, fix the left side drift at left side die tip, fix the right side drift at right side die tip, the left side drift, the tip of right side drift sets up in opposite directions, the top of going up the mould is equipped with the last die holder that is used for with forging machine power take off end fixed connection, the below fixed mounting of lower mould is on operation platform, be equipped with the left side drive channel who is used for with drive left side drift on the die of left side, be equipped with the right side drive channel who is used for with drive right side drift on the die of right side, left side drift, be located between last mould and the lower mould after the drive of right side drift.

According to the further technical scheme, the left side punch and the right side punch are arranged on the same axis.

The utility model has the beneficial effects that:

when the die is used for piston forging, the middle parts of the upper die and the lower die are molded firstly, and then the punches at the two ends are subjected to side punching to stretch the cylinders at the two ends, so that the material flow is smooth, and the appearance precision and the size of a product are ensured to be in place; the die structure provided by the utility model is convenient and rapid to discharge, ensures the product quality, and has the advantages of reducing working procedures, increasing benefits, preventing die cracking for reducing forging pressure, reducing equipment loss and saving cost expenditure.

Drawings

FIG. 1 is a schematic structural view of the present invention,

the device comprises a die frame 1, an upper die frame 11, an upper die 2, an operation platform 21, a lower die 3, a left die 31, a left punch 32, a left driving channel 4, a right die 41, a right punch 42, a right driving channel 5 and a piston section.

Detailed Description

The utility model will be further illustrated and understood by the following non-limiting examples.

As shown in figure 1, the utility model provides a die assembly for piston preparation, which comprises an upper die 11, a lower die 21, a left side punching die 3 and a right side punching die 4 which are horizontally arranged at the left side and the right side of the lower die 21, a left side punching head 31 fixed at the end part of the left side punching die 3, and a right side punching head 41 fixed at the end part of the right side punching die 4, wherein an upper die frame 1 fixedly connected with a power output end of a forging machine is arranged above the upper die 11, the lower part of the lower die 21 is fixedly arranged on an operation platform 2, the end parts of the left side punching head 31 and the right side punching head 41 are oppositely arranged, and in order to ensure that two ends of a piston are concentric with a cup, the left side punching head 31 and the right side punching head 41 are arranged on the same axis. The left die 3 is provided with a left driving passage 32 for driving the left punch 31, the right die 4 is provided with a right driving passage 42 for driving the right punch 41, and the left punch 31 and the right punch 41 are positioned between the upper die 11 and the lower die 21 after being driven.

The working process is as follows:

rough forging: installing a die on a forging machine, adjusting parameters, placing the piston section 5 on the lower die 21, positioning the piston section 5 after driving a right punch 41, pressing the upper die 11 downwards under the action of a power output end of the forging machine, returning the right punch 41, continuously acting the upper die 11 to close the lower die 21, and forming the middle part of a product;

and (3) precision forging: after the middle part is formed, the left side punch 31 and the punch with the friction brush at the two ends simultaneously enter the cavity formed by the upper die 11 and the lower die 21, and the two ends of the drawing piston section bar 5 are in a cylindrical shape.

In conclusion, the die design adopts a structure that the upper die and the lower die are combined and the die is laterally punched and stretched, the forging process comprises rough forging and finish forging, when the die is used for preparing the piston, the middle part of the upper die and the lower die is molded, and then the punches at the two ends are laterally punched and stretched to form the cylinders at the two ends of the piston section bar 5, so that the material flow is smooth, and the appearance precision and the size of the product are ensured to be in place; the die structure provided by the utility model is convenient and rapid to discharge, ensures the product quality, and has the advantages of reducing working procedures, increasing benefits, preventing die cracking for reducing forging pressure, reducing equipment loss and saving cost expenditure.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mould subassembly for piston preparation, sets up on the forging machine which characterized in that: including last mould, lower mould, level setting at the left side die and the right side die of the lower mould left and right sides, fix the left side drift at left side die tip, fix the right side drift at right side die tip, the tip of left side drift, right side drift sets up in opposite directions, the top of going up the mould is equipped with the last mould frame that is used for with forging machine power take off end fixed connection, the below fixed mounting of lower mould is on operation platform, be equipped with the left side drive passage who is used for with drive left side drift on the die of left side, be equipped with the right side drive passage who is used for with drive right side drift on the die of right side, be located between mould and the lower mould after left side drift, the drive of right side drift.

2. A mold assembly for piston preparation as claimed in claim 1 wherein: the left side drift and the right side drift set up on the same axis.