Carrier-free one-die two-piece forming method for bracket

A carrier-free, pre-forming technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of high energy consumption, low production efficiency, low utilization rate of raw materials, etc., to reduce production costs and improve utilization. Effect

Inactive Publication Date: 2011-09-21
NANJING VOCATIONAL UNIV OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this forming method are: waste generation, low utilization rate of raw m

Method used

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  • Carrier-free one-die two-piece forming method for bracket
  • Carrier-free one-die two-piece forming method for bracket
  • Carrier-free one-die two-piece forming method for bracket

Examples

Experimental program
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Embodiment Construction

[0018] A stent stamping method according to the present invention, it comprises the following steps:

[0019] A) Prepare the strips whose size meets the requirements;

[0020] B) The strip is placed on a special-purpose support carrier-free multi-station progressive forming die;

[0021] C) Complete the bracket forming and shaping on the special bracket-free multi-station progressive forming mold, one mold and two pieces;

[0022] The structure of the multi-station progressive forming mold without carrier for special support figure 1 and figure 2 , the mold includes an upper mold and a lower mold arranged on the mold frame 1, and the upper mold includes an upper template 2, a rolling guide post 3, a forming die 7, a preforming die 10, a cutting punch 13, a punching punch 17, a punch Die fixed plate 16, cutting off stripping plate 15, punching stripping strip 18, preformed stripping block 8, forming stripping block 5, guide pin 14, inclined guide post 31 and nitrogen sprin...

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Abstract

The invention discloses a carrier-free one-die two-piece forming method for a bracket. The method comprises the following steps of: preparing a strip material, the size of which meets the requirement; placing the strip material on a special bracket carrier-free multi-station progressive forming die; completing formation and reshaping of the bracket on the special bracket carrier-free multi-station progressive forming die, thus obtaining two pieces on one die; and completing bracket formation when the bracket automatically falls from the die. The workpieces are bent, formed and reshaped by using the special bracket carrier-free (waste) multi-station progressive forming die. The utilization rate of the bracket material can be improved, the production efficiency can be improved, the production cost can be reduced, and the method has great practical value.

Description

technical field [0001] The invention relates to a sheet metal forming process, in particular to a one-mold two-piece stamping method for a bracket without a carrier (waste material). Background technique [0002] The multi-station progressive die forming method is an advanced sheet metal forming method in stamping technology. It is welcomed by production units because of its simple operation, convenience, and high production efficiency. In the multi-station progressive die stamping process, the remaining material must be continuously cut off during the feeding process of the strip. Between each station and before reaching the last station, some materials need to be retained to connect them to ensure that the strip Continuous feeding, this part of the material is called the carrier. Figure 4b It is a schematic diagram of multi-station progressive forming layout with carrier (waste material) in the prior art, Figure 4a It is a schematic side view of the support structure ob...

Claims

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Application Information

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IPC IPC(8): B21D35/00B21D37/10
Inventor 匡余华
Owner NANJING VOCATIONAL UNIV OF IND TECH
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