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High-pressure punching mechanism

A high-pressure, cylinder-barrel technology, applied in the field of high-pressure drilling mechanism, can solve the problems of easy wear of the punch, easy damage of the mold, high processing cost, etc., and achieve the effect of high processing efficiency, low cost and low cost

Inactive Publication Date: 2015-03-25
CHENGDU HONGSHAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, technologies such as EDM, abrasive micromachining, combined use of laser and EDM, and hydraulic machining are mostly used in China to treat different processing materials with groups of micropores, but these methods are prone to damage to molds, easy wear of punches, and The defects of easy pollution of the workpiece and high processing cost

Method used

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  • High-pressure punching mechanism

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 As shown, a high-pressure punching mechanism includes a cylinder barrel whose upper and lower ends are closed, a cover 2 fixedly connected to the top of the cylinder barrel 1, a movable rod 3 arranged coaxially with the cylinder barrel 1, and a cylinder barrel fixedly connected to the cylinder barrel 1. 1 Nozzle 4 at the bottom end, a control cavity is formed between the cover 2 and the top end of the cylinder barrel 1. The bottom end of the cylinder barrel 1 is provided with a port 11 communicating with the nozzle 4, and the upper end of the movable rod 3 passes through the top end of the cylinder barrel 1. In the control cavity, the upper end of the movable rod 3 is also provided with an annular piston 31 that divides the control cavity into an upper cavity 22 and a lower cavity 23. The lower end of the movable rod 3 is arranged in the cylinder barrel 1 and is fixedly connected to the lower end for sealing In the control assembly 32 of the port 11, the...

Embodiment 2

[0018] This embodiment further defines the following on the basis of embodiment 1: the control assembly 32 includes a connecting plate 33, the connecting plate 33 is fixedly connected to the lower end of the movable rod 3, and the lower end of the connecting plate 33 is provided with a closable port In the sealing head 34 of 11, a plurality of through holes 35 are provided on the connecting plate 33. In this embodiment, the connecting plate 33 can be fixedly connected to the lower end of the movable rod 3; the through hole 35 penetrates the upper and lower end surfaces of the connecting plate 33; the sealing head 34 can be inserted into the through opening 11 to close the through opening 11. In application, when the sealing head 34 closes the port 11, high-pressure gas accumulates in the cylinder barrel 1, and part of the airflow acts on the connecting plate 33 to exert a downward force on the sealing head 34 to make the sealing head 34 more tightly close the port 11 ; Part of ...

Embodiment 3

[0020] This embodiment further defines the following on the basis of the first embodiment: an elastic member 21 is fixed in the cover 2, and the upper end of the movable rod 3 is connected with the elastic member 21. In this embodiment, the elastic member 21 can be fixedly connected to the upper end of the inner wall of the cover 2; the maximum compression amount of the elastic member 21 should be small enough to ensure that the control assembly 32 can communicate with the cylinder barrel 1 and the nozzle 4, so that the control can be reduced. The time for the component 32 to open or close the port 11 improves the processing efficiency. The zero position of this embodiment should make the elastic member 21 in a compressed state, so that the elastic member 21 can act on the movable rod 3 to improve the sealing performance of the control assembly 32, and at the same time can save processing for the suction work of the second pipe 13 energy.

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PUM

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Abstract

The invention discloses a high-pressure punching mechanism which comprises a cylinder barrel, a sealing cover, a movable rod and a jet nozzle. The upper end and the lower end of the cylinder barrel are both closed, the sealing cover is fixedly connected to the top end of the cylinder barrel, the movable rod is coaxially arranged with the cylinder barrel, and the jet nozzle is fixedly connected to the bottom end of the cylinder barrel. A control cavity is formed between the sealing cover and the top end of the cylinder barrel, and a through opening communicated with the jet nozzle is formed in the bottom end of the cylinder barrel. The upper end of the movable rod penetrates through the top end of the cylinder barrel and is arranged in the control cavity. An annular piston which divides the control cavity into an upper cavity and a lower cavity is further arranged at the upper end of the movable rod, and the lower end of the movable rod is arranged in the cylinder barrel and is fixedly connected with a control assembly used for sealing the through opening. A first pipeline communicated with the inside of the cylinder barrel is arranged on the cylinder barrel, and a second pipeline communicated with the lower cavity is arranged on the cylinder barrel or the sealing cover. According to the high-pressure punching mechanism, pollution-free group mini-hole processing is conducted on a workpiece by high-pressure gas, and the high-pressure punching mechanism has the advantages of being high in machining efficiency, long in service life, stable in performance and low in cost.

Description

Technical field [0001] The invention relates to the technical field of micromachining, in particular to a high-pressure punching mechanism. Background technique [0002] In processing practice, multiple small diameter holes are usually provided on the workpiece to meet functional requirements, such as stainless steel tube sheets for heat dissipation. Due to the small diameter and large number of such pores, they are called cluster pores. At present, many domestic technologies such as EDM, abrasive micro-machining, laser and EDM, and hydraulic processing are used to perform group micro-hole processing on different processing materials. However, these methods have different degrees of mold damage, easy wear of the punch, and The workpiece is easy to be contaminated and the processing cost is high. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing processing technology, and provide a high-pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D79/00
Inventor 曾维亮
Owner CHENGDU HONGSHAN TECH