WEDG device for on-line electrode manufacturing in micro electric spark machining

A wire electrode grinding and EDM technology, which is applied in the direction of accessory devices, grinding/polishing equipment, grinding machines, etc., can solve the problems affecting the surface quality of fine electrodes and the influence of precision and dimensional consistency, and achieve small runout and smooth motion. silk smooth effect

Active Publication Date: 2014-03-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the vibration of the electrode wire, the inconsistency of the diameter of the electrode wire, and the interference of the discharge explosive force, the gap between the electrode wire and the micro-electrode will change, which will affect the surface quality and accuracy of the micro-electrode. Consistency also suffers

Method used

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  • WEDG device for on-line electrode manufacturing in micro electric spark machining
  • WEDG device for on-line electrode manufacturing in micro electric spark machining
  • WEDG device for on-line electrode manufacturing in micro electric spark machining

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specific Embodiment approach 1

[0016] Specific implementation mode one: as figure 1 , figure 2 , image 3 As shown, it is composed of a wire feeding mechanism 1, a processing discharge mechanism 2, a wire receiving mechanism 3, a base 4, and an electrode wire 5;

[0017] The wire feeding mechanism 1 is driven by a stepping motor for the wire storage barrel 1-1, the first guide wheel 1-2, the second guide wheel 1-3, the pressure wheel 1-4, the first belt runner 1-5, and the second belt The runner 1-6, the third belt runner 1-7, the fourth belt runner 1-8, and the belt 1-9 are composed; the stepper motor drives the wire storage drum 1-1 and is arranged on the first guide wheel 1-2. On the left side, the pressure roller 1-4 is arranged on the lower right side of the first guide roller 1-2, the second guide roller 1-3 is arranged on the upper right side of the pressure roller 1-4, the first belt runner 1-5 and the second The belt runners 1-6 are respectively arranged on both sides of the pressure roller 1-4...

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Abstract

The invention discloses a WEDG device for on-line electrode manufacturing in micro electric spark machining and relates to the technical field of on-line tool electrode manufacturing in micro electric spark machining. The WEDG device aims to solve the problems that in an existing WEDG machining method, when the dimension of an electrode to be manufactured is very small, the requirements for the tension, operation speed and stability of a wire electrode are very high, the surface quality and precision of the micro electrode are affected and the dimension uniformity of the micro electrode is also affected by repeated machining. A wire electrode is conveyed out by a wire conveying mechanism of the WEDG device and conveyed into a wire collection mechanism after being machined by a machining discharging mechanism. The WEDG device is an on-line electrode manufacturing device which has the advantages that wire conveying is stable, the run-out of the wire electrode is very small at the discharging wheel position and wire conveying speed is low; the design of initiative wire supply through a stepping motor is adopted in a wire conveying module, copper wires are supplied at a constant speed, and constant tension is supplied to the copper wires in the manner that a hysteretic braking pressing wheel is pressed by a belt.

Description

technical field [0001] The invention relates to the technical field of online fabrication of tool electrodes in micro electric discharge machining. Background technique [0002] Wire EDM Grinding (WEDG) is a method of making micro tool electrodes online in micro EDM. It relies on the point discharge between the copper electrode wire and the tool electrode to continuously erode the excess part of the tool electrode. A variety of micro and special-shaped tool electrodes. [0003] WEDG can avoid the installation error caused by the misalignment of the axis of the main shaft and the electrode during the secondary clamping. Therefore, the WEDG method has been highly valued by people in the industry in the field of micro-shaft processing, and relatively large research results have been achieved. The diameter of the micro-electrodes processed by the WEDG method can reach 2.5 μm, and the micro-electrodes processed by this method can be used to process micro-circular holes with a d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/00
CPCB23H1/00B23H11/00
Inventor 白基成朱国征王燕青曹剡李强凡银生李政凯
Owner HARBIN INST OF TECH
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