CN220127379U - Stress release pulling and male die structure - Google Patents

Abstract

The utility model relates to the technical field of stamping, in particular to a stress release stretching die structure. The die assembly comprises an upper die assembly and a lower die assembly, the upper die assembly and the lower die assembly are in butt joint up and down, the middle parts of the upper die assembly and the lower die assembly are provided with workpieces, the upper die assembly comprises an upper die base, an upper die plate arranged below the lower die base and a female die plate arranged on the upper die plate, the lower die assembly comprises a lower die base, a lower die plate arranged on the lower die base and a male die plate arranged on the lower die plate, a plurality of auxiliary convex blocks are arranged on the male die plate, auxiliary grooves corresponding to the auxiliary convex blocks are correspondingly arranged on the female die plate, and a plurality of fine seams corresponding to the root parts of the auxiliary convex blocks are correspondingly formed on the workpieces. The utility model has the advantages that: the technology avoids the phenomenon that a product workpiece generates distortion during stamping, and effectively ensures the flatness of the product.

Description

Stress release pulling and male die structure

Technical Field

The utility model relates to the technical field of stamping, in particular to a stress release stretching die structure.

Background

In the manufacturing process, a workpiece is processed by a stamping die to form a chain guide rail bracket, the stamping die comprises an upper die holder and a lower die holder which are arranged in pairs, a female die and a male die which are arranged in pairs are respectively arranged on the upper die holder and the lower die holder, and a stamping part on the female die applies pressure to the workpiece placed on the male die to separate the workpiece from an original or shape the workpiece.

In the prior art, the application number is: CN202121529388.6, when there is a convex hull for general products, the product volume is often increased due to convex, so that stress release is generated on the surface of the material, and the material is distorted and deformed, and the flatness of the product with convex hulls is often poor and the requirements of guests cannot be met, so that a stress release pull-male die structure needs to be designed to solve the above problems.

Disclosure of Invention

The utility model aims to provide a stress release and stretching die structure so as to overcome the defects in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a stress relief draws punch structure, it includes mould subassembly and lower mould subassembly, go up the butt joint setting about mould subassembly and the lower mould subassembly, and both middle parts are provided with the work piece, go up the mould subassembly include the upper die base, set up in cope match-plate pattern under the upper die base, set up in die plate on the cope match-plate pattern, lower mould subassembly includes the die holder, sets up lower bolster on the die holder, set up punch plate on the lower bolster, set up a plurality of auxiliary protruding blocks on the punch plate, be provided with the auxiliary groove that corresponds with auxiliary protruding block on the die plate, auxiliary protruding block and auxiliary groove butt joint correspond on the work piece set up a plurality of thin seams corresponding with auxiliary protruding block root.

Preferably, the slits are uniformly distributed on the workpiece with gaps according to the shape of the root of the auxiliary bump.

Preferably, the width of the slit is not more than 0.1mm.

Preferably, a positioning hole for matching and positioning is also arranged under the female die plate.

Preferably, the convex template is also provided with a positioning pin for matching and positioning.

Preferably, the workpiece is also provided with a limiting hole

The beneficial effects of the utility model are as follows: according to the technical scheme, the fine slits with the same shape as the root parts of the auxiliary projections are cut on the workpiece, the fine slits can widen when the product is pulled to be convex in the process of punching, the corresponding materials are reduced, the stress of the fire-fighting product is released, the phenomenon that the workpiece of the product is distorted and deformed during punching is avoided, and the flatness of the product is effectively guaranteed.

Drawings

FIG. 1 is a schematic diagram of a stress relief embossing mold structure according to the present utility model;

FIG. 2 is a side view of a stress relief embossing die structure in accordance with the present utility model;

FIG. 3 is a schematic diagram of a prior art workpiece stamping process for a stress relief embossing die structure of the present utility model;

FIG. 4 is a schematic illustration of a stress relief embossing die structure according to the present utility model after stamping;

in the figure: 1/upper die assembly; 2/lower die assembly; 3/work piece; 11/upper die holder; 12/upper template; 13/female template; 14/auxiliary grooves; 15/positioning holes; 26/dowel pins; 21/lower die holder; 22/lower template; 23/male template; 24/auxiliary bump; 31/slit; 32/limit holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 4, a stress release drawing die structure comprises an upper die assembly 1 and a lower die assembly 2, wherein the upper die assembly 1 and the lower die assembly 2 are in up-down butt joint, the middle parts of the upper die assembly 1 and the lower die assembly 2 are provided with a workpiece 3, the upper die assembly 1 comprises an upper die holder 11, an upper die plate 12 arranged below the upper die holder 11, and a female die plate 13 arranged on the upper die plate 12, the lower die assembly 2 comprises a lower die holder 21, a lower die plate 22 arranged on the lower die holder 21, and a male die plate 23 arranged on the lower die plate 22, a plurality of auxiliary protrusions 24 are arranged on the male die plate 23, auxiliary grooves 14 corresponding to the auxiliary protrusions 24 are correspondingly arranged on the female die plate 13, the auxiliary protrusions 24 and the auxiliary grooves 14 are in butt joint, a plurality of thin seams 31 corresponding to the root parts of the auxiliary protrusions 24 are correspondingly arranged on the workpiece 3, and the thin seams 31 are uniformly distributed on the workpiece 3 with gaps according to the shape of the root parts of the auxiliary protrusions 24.

The slit 31 is processed by laser or wire cutting, and the width of the slit 31 is not more than 0.1mm in order to ensure the strength of the product punched by the workpiece 3; the slits 31 on the workpiece 3 are machined according to the shape distribution of the punched convex hulls, so that the method is suitable for convex hull punching of different combinations.

A positioning hole 15 for matching and positioning is also arranged under the female die plate 13;

the punch plate 23 is also provided with a positioning pin 26 for matching positioning, and the workpiece 3 is also provided with a limiting hole 32 for matching the positioning pin and the positioning hole to carry out fixed limiting, so that the workpiece 3 is prevented from moving to generate stamping deviation during stamping, and stamping quality and precision are prevented from being influenced.

The auxiliary projections of the male die product are not limited by shape, and the line type of the slit 31 is not limited by shape.

In this embodiment, the shape of the root of the auxiliary bump 24 is machined on the workpiece 3 by laser or wire cutting according to the shape and position of the punched convex hull, and the auxiliary bump 24 is clamped relative to the set slit 31, the upper die assembly 1 and the lower die assembly 2, so as to punch the workpiece 3, the slit 31 can widen the product when the product is pulled and raised in the punching and raising process, and accordingly, the material extension and the stress release of the fire-fighting product are reduced.

The utility model has the advantages that the thin seam with the same shape as the root of the auxiliary lug is cut on the workpiece mountain, the thin seam can widen the product when the product is pulled to be convex in the process of punching, the extension of materials is correspondingly reduced, and the stress of the fire-fighting product is released, so that the phenomenon of distortion and deformation of the workpiece of the product during punching is avoided, and the flatness of the product is effectively ensured.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a stress relief draws punch structure, it includes mould subassembly and lower mould subassembly, go up the butt joint setting about mould subassembly and the lower mould subassembly, and both middle parts are provided with the work piece, go up the mould subassembly including the upper die base, set up in cope match-plate pattern under the upper die base, set up in die plate on the cope match-plate pattern, lower mould subassembly includes the die holder, sets up lower bolster on the die holder, set up the protruding template on the lower bolster, its characterized in that: the die plate is characterized in that a plurality of auxiliary convex blocks are arranged on the die plate, auxiliary grooves corresponding to the auxiliary convex blocks are correspondingly arranged on the die plate, the auxiliary convex blocks are in butt joint with the auxiliary grooves, and a plurality of thin seams corresponding to the root parts of the auxiliary convex blocks are correspondingly formed in the workpiece.

2. The stress relief embossing die structure of claim 1, wherein: the fine slits are uniformly distributed on the workpiece with gaps according to the shape of the root parts of the auxiliary projections.

3. A stress relief embossing die structure as set forth in claim 2, wherein: the width of the slit is not more than 0.1mm.

4. The stress relief embossing die structure of claim 1, wherein: and a positioning hole for matching and positioning is also formed below the female die plate.

5. The stress relief embossing die structure of claim 1, wherein: and the convex template is also provided with a positioning pin for matching and positioning.

6. The stress relief embossing die structure of claim 1, wherein: and the workpiece is also provided with a limiting hole.