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Tool electrode clamp for multi-micropore electric spark discharge synchronous machining

A tool electrode and spark discharge technology, which is applied in the direction of electric processing equipment, manufacturing tools, electrode manufacturing, etc., can solve the problems of short-circuit micro-electrode burnt, electrodes cannot be electrically insulated, and group electrodes are difficult to manufacture, so as to improve chip removal effect and manufacture The effect of low cost and small equipment cost input

Pending Publication Date: 2017-09-08
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the group electrode etched from a piece of electrode material has achieved certain results in the research of machining array micropores, but the group electrode is difficult to manufacture, and there are two technical defects: one is that the electrodes cannot be electrically insulated, and one of the electrodes cannot be electrically insulated. Concentrated energy discharge during short-circuit will cause the short-circuit micro-electrode to be burned; second, the group electrode cannot rotate, the chip removal effect is poor, and the depth of the processed hole is limited

Method used

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  • Tool electrode clamp for multi-micropore electric spark discharge synchronous machining
  • Tool electrode clamp for multi-micropore electric spark discharge synchronous machining
  • Tool electrode clamp for multi-micropore electric spark discharge synchronous machining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 9 As shown, this embodiment provides a tool electrode fixture for synchronous EDM machining with multiple pores, including:

[0039] - hollow stepped shaft 2 for placing the tool electrode 11;

[0040] —The pulley 3 is connected with the upper part of the hollow stepped shaft 2, and is used to drive the rotation of the hollow stepped shaft 2;

[0041] - Collet 10 and nut 9 , the collet 10 is connected to the bottom of the hollow stepped shaft 2 and locked by the nut 9 , the collet 10 is used to fix the tool electrode 11 .

[0042] Among them, the hollow step shaft 2 is a non-standard part, which is processed from bar stock, with a total length of 38.5mm, a maximum outer diameter of Φ10.0mm, and a central hole (cavity) diameter of Φ3.3mm, such as image 3 shown. The hollow stepped shaft 2 includes two shaft shoulders, the two shaft shoulders are the first shaft shoulder and the second shaft shoulder respectively, the pulley 3 is located at ...

Embodiment 2

[0049] Using the method of using the tool electrode fixture for multi-micropore EDM synchronous machining described in Example 1, the tool electrode fixture needs to be used with a specially designed fixture plate, and a plurality of tool electrode fixtures are provided on the fixture plate The step hole, the specific use process is as follows:

[0050](1) Assemble the bearings 6 and 8 into the stepped holes of the fixture disc 7 in an interference fit manner;

[0051] (2) Put the middle step of the hollow step shaft 2 into the inner rings of the two bearings 6 and 8 in the step hole of the fixture disc 7 in an interference fit manner, and then install the bearing retaining ring 5;

[0052] (3) Fix the pulley 3 to the first shoulder of the upper stepped shaft of the hollow stepped shaft 2 by using the set screw 4 .

[0053] Next, the process of installing the tool electrode 11, such as figure 2 shown.

[0054] (4) Clip the collet 10 into the nut 9;

[0055] (5) Insert the...

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Abstract

The invention relates to a tool electrode clamp for multi-micropore electric spark discharge synchronous machining. The tool electrode clamp comprises a hollow step shaft, a belt wheel, a clamp head and a nut. The hollow step shaft is used for containing a tool electrode. The belt wheel is connected with the upper portion of the hollow step shaft and used for driving the hollow step shaft to rotate. The clamp head is connected with the bottom of the hollow step shaft, used for fixing the tool electrode and locked through the nut. According to the tool electrode clamp, in combination with a special clamp disc, multiple tool electrode clamps can be mounted on the same clamp disc, among the tool electrode clamps, belt wheels and hollow step shafts are driven by synchronous belts to rotate, and the consistency of all the tool electrodes on the clamp disc in work can be guaranteed in the following processes; and the tool electrodes work at the same time, the working efficiency of machining multiple micropores is improved, meanwhile electric insulation among all the tool electrodes is achieved in work, independent discharge energy control can be conducted, and thus the phenomena of the short circuit and electrode burnout can be avoided.

Description

technical field [0001] The invention relates to a tool electrode fixture used for multi-micropore electric spark discharge synchronous machining, and belongs to the technical field of special processing equipment. Background technique [0002] Micropores are widely used in the fields of engines, aerospace, medical equipment, microelectronics, precision machinery, molds, etc., and are often used as fuel injection atomization holes for engines, spinneret holes for spinnerets, flushing holes for electric plates, and Blades, cooling holes of the cylinder body, oil passage holes or air passage holes of the valve body, etc. Since the materials using micro-holes are mostly high-strength, high-hardness and difficult-to-machine materials, such as heat-resistant steel, stainless steel, hard alloy, diamond, etc., and require a certain hole depth, micro-hole machining has become the most difficult part of hole machining. One of the crafts. [0003] The EDM micro-discharge machining me...

Claims

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Application Information

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IPC IPC(8): B23H1/04B23H9/14B23H11/00
CPCB23H1/04B23H9/14B23H11/00
Inventor 霍孟友
Owner SHANDONG UNIV
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