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Drawing die

A technology for drawing dies and die bases, which is used in forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of inconvenient unloading and low heat dissipation efficiency of stamping dies, and achieve convenient and fast unloading, improve work efficiency, Increase the effect of heat dissipation

Active Publication Date: 2019-04-26
PHNIX GUANGZHOU ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a new type of drawing die for the problem of inconvenient unloading of the drawing die and the low heat dissipation efficiency of the stamping die, which operates the clamping and separating of the clamping rod and the groove by pulling the block. Achieve the effect of convenient and quick manual unloading

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0044] refer to figure 1 , a kind of stretching die, comprises upper mold base 1, punch 18, lower mold base 2, die 3, base 5, bearing plate 6, return spring one 7, two clamp rods 14, return spring two 15, two A pull cord 16 and two pull blocks 17.

[0045] Wherein, punch 18 is installed on the upper mold base 1 . The lower mold base 2 is a hollow structure. The concave mold 3 corresponding to the convex mold 18 is installed on the lower mold base 2, and the concave mold 3 and the lower mold base 2 are integrally formed to ensure the high quality of workpiece stretching. The workpiece is placed on the die 3, and then the punch 18 is used to drive the punch 18 to press the workpiece downward, thereby completing the work of stretching the workpiece. And the bottom of the die 3 is provided with a through hole 4, and the base 5 is located in the through hole 4; the base 5 and the through hole 4 have an interference fit. That is, the specification of the base 5 is consistent wit...

Embodiment 2

[0049] When utilizing the stretching die in embodiment 1 to stretch the workpiece, there is a huge friction force between the workpiece and the flange part of the die 3 . In this way, under the working conditions of continuous stamping, the performance of the drawing die will decrease, resulting in the frequent shutdown of the drawing die for maintenance in the later stage, which greatly reduces the production efficiency. For this reason, further improvement is made on the basis of the stretching die in Example 1. The specific improvements are as follows:

[0050] refer to Figure 2-3 The outer wall of the die 3 located inside the lower die base 2 is provided with a cooling structure, and the side wall of the lower die base 2 is provided with a plurality of cooling holes 12 . The effect of air crossing can be achieved by utilizing the cooling holes 12 . Increase air flow at die 3. The cooling structure includes a cooling water pipe 23 , a water inlet sealing plug 24 and a ...

Embodiment 3

[0054] In order to further improve the working efficiency of the stretching dies of Example 1 and Example 2, manual unloading was improved to automatic unloading. Specifically, as follows:

[0055] refer to figure 1 and Figure 4 , The drawing die also includes an automatic ejector reset mechanism. The ejector reset mechanism is arranged on the lower mold base 2 . The automatic ejector reset mechanism includes two pull blocks 17, four rubber clamping bars 19, two vertical bars 20 and four triangular blocks 22.

[0056] Wherein, the two pull blocks 17 are both hollow structures. The side walls of the two pull blocks 17 are symmetrically provided with two through holes 21 ; The two rubber snap rods 19 in each set of buckle mechanisms are mirror-symmetrical about the vertical centerline of the pull block 17 . The shortest linear distance between the two rubber clamps 19 in each group of buckle mechanisms is not greater than the length of the pull block 17, thereby ensuring ...

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Abstract

The invention relates to a drawing die. The drawing die includes an upper die seat, a convex die, a lower die seat, a concave die, a base, a carrier plate, a first resetting spring, two clamping rods,a second resetting spring, two drawing ropes and two drawing blocks. According to the drawing die, the clamping connection and disconnection of the clamping rods and grooves is conducted by using thedrawing blocks, and the convenient and fast effect of manual discharging is achieved; meanwhile, the clamping connection of the rubber clamping rods and the drawing blocks is used, and the automateddischarging is achieved; the rubber clamping rods are separated from the drawing blocks by using triangular blocks, and the automatic resetting of an ejecting mechanism is achieved; the whole processof discharging of the drawing die achieves automated operation, the discharging is more convenient and faster, and the working efficiency of the drawing die is improved; the cooling effect is achievedby using the cooling water in a cooling water pipe; and the effect of wind flowing can be achieved through the arranged cooling holes, the air flow in the concave die is improved, the effect of auxiliary heat dissipation is achieved, and the heat dissipation effect of the drawing die is further improved.

Description

technical field [0001] The invention relates to the technical field of stretching dies, in particular to a stretching die. Background technique [0002] The drawing die is a kind of stamping die, which includes an upper die holder, a lower die holder, a punch and a die. The punch is used to drive the punch to move downward, and the punch contacts the workpiece and stretches the workpiece into the die. Processors can use the drawing die to press the punched flat blank into hollow parts with various openings, or a stamping method that processes a hollow part with openings into hollow parts of other shapes. [0003] When unloading the drawing die in the prior art, it is inconvenient to manually turn the unloading screw to unload. And when the workpiece is stretched, there is a huge friction force between the workpiece and the flange part of the die, which causes the internal temperature of the die to rise. When using a drawing die to continuously stamp a workpiece, the stamp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D37/16B21D45/04B21D22/20
CPCB21D22/20B21D37/10B21D37/16B21D45/04
Inventor 何强杨超毅柏先宁
Owner PHNIX GUANGZHOU ELECTRICAL
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