CN213613585U

CN213613585U - Pretreatment structure for thick plate with cutting edge burrs

Info

Publication number: CN213613585U
Application number: CN202021965935.0U
Authority: CN
Inventors: 陈荣; 欧阳勇辉; 阳斌
Original assignee: Xiangxin Technology Co Ltd
Current assignee: Xiangxin Technology Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-07-06
Anticipated expiration: 2030-09-10

Abstract

The utility model provides a thick plate material area connects preliminary treatment structure of edge of a knife burr, includes mould and lower mould, go up the upper die base that the mould includes top-down sets gradually, punch holder and go up and take off the flitch, the punch holder with go up to take off and be equipped with the spring between the flitch, the lower mould includes lower bolster and the die holder that top-down set gradually, be equipped with two inverted triangle extrusion public grooves on the lower bolster, all be equipped with inverted triangle extrusion in these two inverted triangle extrusion public grooves and public, two inverted triangle extrusion is public sets up relatively, two inverted triangle extrusion is public all fixed in through inverted triangle extrusion public fastening screw on the die holder. The utility model discloses not only can avoid the burr closed angle to appear, labour saving and time saving moreover, it is efficient.

Description

Pretreatment structure for thick plate with cutting edge burrs

Technical Field

The utility model belongs to the technical field of stamping die technique and specifically relates to a thick plate material area connects preliminary treatment structure of edge of a knife burr.

Background

In some large-scale automobile parts, especially some thicker plate products, in order to save materials and improve production efficiency, a continuous stamping die is usually adopted, but because the blanking clearance of the upper die and the lower die of the convex-concave die of a thick plate knife edge is larger, a fillet zone, a bright zone, a fracture zone and burrs are formed on the surface of a stamped product, because of the bright zone, the upper size and the lower size of the fracture zone are greatly different, when the product is separated at the 2 nd time of the knife edge, the punch of the 2 nd knife edge zone can directly extrude the sharp corner burrs at the knife edge zone in the stamping process, the sharp corner burrs are difficult to eliminate, and the subsequent processes are required to be added for reprocessing under general conditions, such as manual polishing or vibration equipment vibration deburring, but the problems of labor waste, time waste, low efficiency and the like exist.

Accordingly, the prior art is subject to improvements and enhancements.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model aims at providing an avoid the burr closed angle to appear, save labour the time-saving, efficient thick plate material area connects the preliminary treatment structure of edge of a knife burr.

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

the utility model provides a thick plate material area connects preliminary treatment structure of edge of a knife burr, includes mould and lower mould, go up the upper die base that the mould includes top-down sets gradually, punch holder and go up and take off the flitch, the punch holder with go up to take off and be equipped with the spring between the flitch, the lower mould includes lower bolster and the die holder that top-down set gradually, be equipped with two inverted triangle extrusion public grooves on the lower bolster, all be equipped with inverted triangle extrusion in these two inverted triangle extrusion public grooves and public, two inverted triangle extrusion is public sets up relatively, two inverted triangle extrusion is public all fixed in through inverted triangle extrusion public fastening screw on the die holder.

Preferably, the height of the triangular tip of the inverted triangular extrusion male is 35% of the thickness of the material to be processed.

Preferably, the processing position of the convex triangular tip of the inverted triangular extrusion is 2mm away from the cutter connecting opening.

Compared with the prior art, the beneficial effects of the utility model are that:

due to the adoption of the structural design, the burr sharp corner can be avoided, the labor and the time are saved, and the efficiency is high.

Drawings

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

figure 2 is the schematic diagram of the subsequent processing of the processed product of the utility model.

The reference numbers in the figures are respectively: (1) the screw die comprises an upper die holder, (2) an upper clamping plate, (3) an upper stripper plate, (4) a spring, (5) a lower die plate, (6) a lower die holder, (7) (8) an inverted triangular extrusion male screw, and (9) (10) an inverted triangular extrusion male screw.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1, the utility model relates to a pretreatment structure of thick plate material area edge of a knife burr, including last mould and lower mould, the last mould includes upper die base 1, punch holder 2 and the upper stripper plate 3 that top-down set gradually, be equipped with spring 4 between punch holder 2 and the upper stripper plate 3, the lower mould includes lower bolster 5 and lower die base 6 that top-down set gradually, be equipped with two inverted triangle extrusion male grooves on the lower bolster 5, be equipped with inverted triangle extrusion male 7 and 8 respectively in these two inverted triangle extrusion male grooves, two the inverted triangle extrusion male 7 and 8 set up relatively, two the inverted triangle extrusion male 7, 8 are fixed in on the lower die base 6 through inverted triangle extrusion

male fastening screw

9, 10 respectively; the height of the triangular tip of the inverted triangular extrusion male is 35% of the thickness of the material to be processed; the distance between the processing position of the convex triangle tip of the inverted triangle extrusion and the cutter connecting opening is 2 mm.

When the utility model works, the upper die moves downwards, the triangular tip of the inverted triangular extrusion male contacts the thick plate material belt firstly, then the upper stripper plate presses downwards, and the inverted triangular extrusion male acts on the lower surface of the thick plate material belt to deform the thick plate material belt, so that two inverted triangular grooves with the size almost the same as that of the triangular tip of the inverted triangular extrusion male are formed; referring to fig. 2, when the punch and the die are matched to realize blanking, because the thick plate material belt in the previous joint area is reversely pressed back to generate a reverse inclined surface and a bright belt, when the punch punches downwards, the punch tears along the bright belt, when the punch punches the inverted triangular groove area, because the thick plate material belt is pressed back, the burr surface on the back surface cannot tear to the bottom downwards along with the punch, thus the burr sharp corner cannot be generated naturally, and the problem that burrs occur at the position of the joint edge of the thick plate material belt is solved.

To sum up, the utility model discloses an foretell structural design solves the weak point that exists among the prior art, has reasonable in design, saves labour the characteristics such as time-saving, efficient.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a thick plate material area connects preliminary treatment structure of edge of a knife burr, includes mould and lower mould, its characterized in that: the upper die comprises an upper die base, an upper clamping plate and an upper stripper plate, wherein the upper die base, the upper clamping plate and the upper stripper plate are sequentially arranged from top to bottom, a spring is arranged between the upper stripper plate and the upper stripper plate, the lower die comprises a lower die plate and a lower die base, the lower die plate is sequentially provided with two inverted-triangular extrusion male grooves, inverted-triangular extrusion male grooves are formed in the two inverted-triangular extrusion male grooves, the inverted-triangular extrusion male grooves are oppositely arranged, and the inverted-triangular extrusion male grooves are fixed on the lower die.

2. The pretreatment structure of slab stock with cutting edge burrs as claimed in claim 1, wherein: the height of the triangular tip of the inverted triangular extrusion male is 35% of the thickness of the material to be processed.

3. The pretreatment structure of slab stock with cutting edge burr according to claim 1 or 2, characterized in that: the distance between the processing position of the convex triangle tip of the inverted triangle extrusion and the cutter connecting opening is 2 mm.