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Adjustable combined hot bending die

A mold and combined technology, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of long design and production cycle, narrow mold application range, high recovery cost, shorten production cycle, wide application range, The effect of reducing production costs

Inactive Publication Date: 2007-05-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current bending dies mostly use the overall structure for one-time forming, and its disadvantages are more prominent:
[0004] 1. Each part corresponds to a set of bending dies, and the mold cost of the parts is relatively high
[0005] 2. Every time a new part is developed, the corresponding mold needs to be designed and developed, and the design and production cycle is long
[0006] 3. A set of molds is only suitable for a certain type of material, and the scope of application of the mold is narrow
[0007] 4. When there is a negative tolerance in mold processing, the recovery cost is high, and molds that require multiple tests and design adjustments cannot be effectively improved to meet design requirements

Method used

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  • Adjustable combined hot bending die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] For example for a small landing gear with a bend angle of 120°. The first is the shape adjustment and fixation of the punch. By adjusting the chute slider mechanism of the horizontal adjustment template 7 of the punch, the horizontal length of the punch matches the length of the part and is fixed with bolts. Then rotate the punch right bevel formwork 5 and the punch left bevel formwork 8 around the third adjustment axis 31 and the fourth adjustment axis 32 respectively, so that the inner angle formed with the horizontal formwork is 120 °, and the adjustment of the punch shape is completed. After adjusting the level of the punch fixed plate and the movable slider of the press around the first adjustment axis 2 and the second adjustment axis 91, it is fixed with the movable slider by a pressing block.

[0037]Then, according to the position of the punch, the horizontal adjustment template of the die and the fixed slider of the press are fixed. By adjusting the position ...

Embodiment 2

[0040] For example, V-shaped magnesium alloy plate. Since the magnesium alloy belongs to a close-packed hexagonal lattice, there are only three slip systems at room temperature, and its plastic deformation ability is poor, so heating is required during processing.

[0041] First, adjust the position angle of the corresponding module of the mold according to the method of Example 1, and surround it with the upper and lower sliders of the press. Then the mold is heated by the resistance wire arranged in the mold heating hole. The temperature sensor is used to collect the change of the mold temperature during the heating process until the process requirements are met. At this time, the heating circuit is disconnected, the preheated magnesium plate is placed between the molds, and the production is completed through the up and down movement of the slider of the press.

[0042] This thermal processing method is suitable for the processing of difficult-to-deform metal bending part...

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Abstract

A regulatable combined die for thermal bending by pressing is composed of the male and the female dies, which have the left and right fixing plates, left and right slope moulding plates, and horizontal regulating plate. The relative position between them are regulatable.

Description

technical field [0001] The invention belongs to the technical field of moulds, in particular to an adjustable combined hot-bending mould. Background technique [0002] Mold is the basis of modern manufacturing technology and plays an important basic role in the national economy. Among them, the bending die is an important part of the mold and an essential tool for the bending process. [0003] However, the current bending dies mostly use the overall structure for one-time forming, and its disadvantages are more prominent: [0004] 1. Each part corresponds to a set of bending dies, and the mold cost of the parts is relatively high. [0005] 2. Every time a new part is developed, a corresponding mold needs to be designed and developed, and the design and production cycle is long. [0006] 3. A set of molds is only suitable for a certain type of material, and the scope of application of the mold is narrow. [0007] 4. When there is a negative tolerance in the mold processin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D37/16
Inventor 李洪洋
Owner TSINGHUA UNIV