CN220515176U - Punching die - Google Patents

Abstract

The utility model relates to a punching die which comprises an upper die holder, an upper base plate, a punch fixing plate, a die plate, a lower base plate and a lower die holder which are sequentially arranged from top to bottom, wherein the upper die holder, the upper base plate and the punch fixing plate are fixedly connected through bolts, the die plate, the lower base plate and the lower die holder are fixedly connected through bolts, a punching punch is arranged on the punch fixing plate, a die insert matched with the punching punch is arranged on the die plate, a chamfer is arranged at the top end of the die insert, a pressing plate for fixing a workpiece on the die plate is arranged below the punch fixing plate, and the pressing plate is connected with the punch fixing plate through a plurality of elastic elements. The utility model has simple structure, reasonable design and better practicability and working reliability, and can realize chamfering of the orifice part while punching the workpiece without additional chamfering processing, thereby effectively reducing processing procedures and cost.

Description

Punching die

Technical Field

The utility model belongs to the technical field of sheet metal aluminum (or other soft metals) stamping equipment, and particularly relates to a punching die.

Background

Since burrs are often left on the holes when the aluminum material is punched into the threaded holes (after punching, tapping), particularly for attaching to surfaces that cannot be scratched, the burrs are not allowed, and therefore, chamfering of the threaded bottom holes is required before tapping. However, performing additional chamfering increases the manufacturing process, which tends to increase the processing cost.

Disclosure of Invention

The utility model provides a punching die aiming at the technical problems in the prior art.

The technical scheme for solving the technical problems is as follows:

the utility model provides a cut-out press, includes upper die base, upper padding plate, drift fixed plate, die block, lower bolster and the die holder that top-down set gradually, upper die base, upper padding plate and drift fixed plate pass through bolt fixed connection, die block, lower bolster and die block pass through bolt fixed connection, be provided with the drift that punches a hole on the drift fixed plate, be provided with the die mold insert that the cooperation drift that punches a hole used on the die block, the top of die mold insert is provided with the chamfer, the below of drift fixed plate is provided with the pressure flitch that is used for carrying out fixing to the work piece on the die block, the pressure flitch is through a plurality of elastic element connection drift fixed plate.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, a receiving groove for assembling the female mold insert is provided on the female mold plate.

Further, a plurality of guide posts are arranged on the upper die base, and positioning holes matched with the guide posts are formed in the female die plate.

Further, a plurality of equal-height sleeves are arranged on the upper base plate.

The beneficial effects of the utility model are as follows: the utility model has simple structure, reasonable design and better practicability and working reliability, and can realize chamfering of the orifice part while punching the workpiece without additional chamfering processing, thereby effectively reducing processing procedures and cost.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown at A in FIG. 2;

fig. 4 is a schematic structural view of the female mold insert of the present utility model.

In the figure:

1. the die comprises an upper die holder, 2, an upper base plate, 3, a punch fixing plate, 4, a constant-height sleeve, 5, a punch, 6, a workpiece, 7, a pressing plate, 8, a die insert, 9, a die plate, 10, a lower base plate, 11, a lower die holder, 12, bolts, 13, guide posts, 14 and an elastic element.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Example 1

As shown in fig. 1 to 4, a punching die of the present embodiment includes an upper die holder 1, an upper backing plate 2, a punch fixing plate 3, a die plate 9, a lower backing plate 10 and a lower die holder 11, which are sequentially disposed from top to bottom. The upper die holder 1, the upper base plate 2 and the punch fixing plate 3 are fixedly connected through bolts 12, and the female die plate 9, the lower base plate 10 and the lower die holder 11 are fixedly connected through bolts 12. The punch fixing plate 3 is provided with a punching punch 5, the die plate 9 is provided with a die insert 8 matched with the punching punch 5, and the top end of the die insert 8 is provided with a chamfer. I.e. the die insert 8 is arranged coaxially with the punching punch 5. The cavity plate 9 is provided with a receiving groove for assembling the cavity insert 8. A pressing plate 7 for fixing the workpiece 6 on the die plate 9 is arranged below the punch fixing plate 3, and the pressing plate 7 is connected with the punch fixing plate 3 through a plurality of elastic elements 14. The material pressing plate 7 is provided with a through hole avoiding the punching punch 5.

By adopting the scheme, before the punching punch 5 cuts into the workpiece 6, the workpiece 6 is pressed by the arranged pressing plate 7, and the workpiece 6 is effectively fixed, so that the stability and the punching quality of the punching process can be greatly improved; and by arranging the die inserts 8 which cooperatively act on the punching punch 5 and the pressing plate 7, chamfering is formed at the orifice part while the workpiece 6 is punched, and additional chamfering processing is not needed, so that the processing procedure and the cost are effectively reduced. In addition, the die is simple in integral structure, reasonable in design, and good in practicality and working reliability.

Example 2

The structure of this embodiment is basically similar to that of embodiment 1, except that a guide post 13 and an equal-height sleeve 4 are added.

As shown in fig. 1 and fig. 2, the upper die holder 1 is provided with a plurality of guide posts 13, and the female die plate 9 is provided with positioning holes matched with the guide posts 13, so as to guide the die opening and closing, and further ensure the working reliability and punching quality of the die.

The upper backing plate 2 is provided with a plurality of contour sleeves 4, and the main function of the contour sleeves is to determine the relative movable position relation, namely the stroke of the pressing plate 7, so that the conditions of belt materials, clamping materials, punch wear and the like are effectively prevented.

The working principle of this embodiment is as follows: the workpiece 6 to be punched is placed on the die plate 9, the upper die holder 1 descends, the pressing plate 7 presses the workpiece 6 first, the elastic element 14 compresses, the upper die holder 1 continues to descend, the punching punch 5 cuts into the workpiece 6, and simultaneously the pressure enables the chamfer on the die insert 8 to penetrate into the surface of the workpiece 6, so that the bevel is left on the hole edge of the punched workpiece 6, the purpose of chamfering the workpiece 6 in the punching process is achieved, and the machining procedure is effectively reduced.

In the present utility model, the devices and components not described in the structure are all commercially available devices or components.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (4)

1. The utility model provides a cut-out press, includes upper die base (1), upper padding plate (2), drift fixed plate (3), die plate (9), lower bolster (10) and die holder (11) that top-down set gradually, upper die base (1), upper padding plate (2) and drift fixed plate (3) pass through bolt (12) fixed connection, die plate (9), lower bolster (10) and die holder (11) pass through bolt (12) fixed connection, a serial communication port, be provided with punch (5) on drift fixed plate (3), be provided with die mold insert (8) that cooperation punch (5) used on die plate (9), the top of die mold insert (8) is provided with the chamfer, the below of drift fixed plate (3) is provided with and is used for carrying out fixed pressure flitch (7) to work piece (6) on concave die plate (9), pressure flitch (7) are connected drift fixed plate (3) through a plurality of elastic element (14).

2. A punching die according to claim 1, characterized in that the die plate (9) is provided with a receiving groove for the assembly of a die insert (8).

3. A punching die according to claim 1, characterized in that a plurality of guide posts (13) are arranged on the upper die holder (1), and positioning holes matched with the guide posts (13) are arranged on the female die plate (9).

4. A punching die according to claim 1, characterized in that the upper backing plate (2) is provided with a plurality of contour sleeves (4).