Process for fabricating blind holes

A process method and blind hole technology, applied in the field of stamping, can solve the problems of unsuitable mass production, high processing cost and low processing efficiency, and achieve the effects of high production efficiency, low cost and low processing cost.

Inactive Publication Date: 2007-02-07
CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above processing method has high precision, the processing efficiency is low, the processing cost is high, and it is not suitable for mass production.

Method used

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  • Process for fabricating blind holes
  • Process for fabricating blind holes

Examples

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Embodiment Construction

[0016] Example: as attached figure 1 , 2 As shown, a set of precision blanking die 2 is designed for punching flat plate workpieces with blind holes. Due to the use of precision blanking dies, the shape and position accuracy of blind hole workpieces can be guaranteed. The mold is fixed on the punching machine 1; the workpiece 3 is punched; after the blanking is completed, the convex platform formed by the die after the workpiece is removed can also be polished according to the fine requirements.

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Abstract

The invention refers to a process for processing blind hole on flat work, which belongs to punching technology field. The invention has following steps: (1) designs a set of dies of flat work with blind holes; (2) the die is fixed on an accurate punching machine; (3) loads blank; (4) coining; (5) the work is taken off the platform, the concave mould forms out a convex platform. The invention carries on half-punching hole to the work, and then cuts off the convex platform to the half-punching hole, the cost is low, the process is simple, and the efficiency is high.

Description

(1) Technical field [0001] The invention relates to a process method for processing blind holes on a flat workpiece, which belongs to the technical field of stamping. (2) Background technology [0002] Machining methods such as drilling and milling are usually used to process blind holes on flat workpieces. Although the above-mentioned processing method has high precision, the processing efficiency is low, the processing cost is high, and it is not suitable for mass production. (3) Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a processing blind for plate-shaped workpieces with high production efficiency, low processing cost, large-scale processing, and suitable for material thickness greater than 10 mm and blind hole depth less than 1 / 2 material thickness. Hole process method. [0004] The present invention is accomplished by adopting the following technical measures. [0005] The inventive method step is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D28/02B28B1/48B28B13/00
Inventor 付磊
Owner CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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