Isolating device of slot discharge machine tool
A technology of electric discharge processing machine and machine tool, which is applied in the direction of accessory devices, manufacturing tools, electric processing equipment, etc., can solve the problems of metal corrosion and easy leakage of electricity, and achieve the effect of avoiding corrosion
Active Publication Date: 2013-06-12
昆山徕通机电科技有限公司
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Problems solved by technology
Since the cutting fluid used for processing in the current wire-cut electric discharge machine mostly uses pure water, which is also a kind of dielectric, and the upper flushing water cover 28 and the upper spray nozzle cover 29 and the upper spray nozzle cover 29 of the upper head in the conventional technology are currently used. Nozzle seat 210 is all made of metal and is in electrical contact with the upper guide seat 26 in the current circuit. Similarly, in the conventional technology, the lower flushing water cover plate 32 and the lower jet nozzle cover 33 in the lower machine head are also both It is a metal product and is electrically connected to the lower guide seat 34 in the current circuit, and it will be in contact with cutting fluid, which is prone to leakage and metal corrosion.
Method used
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Embodiment
[0026] Embodiment: This embodiment takes the wire-cut electrical discharge machine as an example, as figure 1 In the schematic diagram of the combination of the upper head and the lower head shown, when the linear discharge cutting movement is performed, the center line 3 that runs through the upper head 1 and the lower head 2, the ideal shape should be kept vertical, the center line The position of 3 is the position where the wire electrode passes in the wire-cut EDM machine. The wire electrode is used as a linear cutting tool during EDM. The power supply of the wire electrode depends on the upper electrode wire locked on the upper head 1. Upper power line supply line 211,212 on the joint 22,23 (as figure 2 As shown), the supplied current is conducted to the upper guide seat 26 through the upper electrode wire connectors 22, 23. The upper guide seat 26 contains a conductive block inside to conduct the current to the wire electrode, and through the wire electrode of the lower...
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The invention discloses an isolating device of a slot discharge machine tool. The isolating device comprises an insulating waterproof assembly and an insulating cover body. The insulating waterproof assembly is electrically insulated from a current circuit assembly and isolates the current circuit assembly from working fluid. The insulating cover body prevents the working fluid from entering into the insulating cover body because the internal air pressure of the insulating cover body is higher than the pressure of external liquid, so that the current circuit assembly including contacts in the insulating cover body is isolated from the working fluid. Therefore, the isolating device disclosed by the invention can effectively prevent the current circuit assembly from being corroded by the working fluid, leaking current and producing a bypass circuit effect.
Description
technical field [0001] The invention relates to a waterproof structure, in particular to a device used in processing equipment with cutting fluid to isolate the influence of cutting fluid on the conductivity of current loop components. Background technique [0002] For the field of wire-cut EDM, cutting fluid is required during the machining process. On the one hand, it is used to cool or take away the high amount of heat generated during the EDM process; on the other hand, it is used to take away the cutting fluid Chips generated during machining of workpieces. In recent years, due to the requirements of environmental protection, the cutting fluid used in wire-cut electric discharge processing machines mostly uses pure water. Whether it is a jet-type or a water-immersed wire-cut EDM machine, there are some circuit components inside the processing tank, and these circuit components will have poor electrical conductivity if they are in contact with water, or leakage will cau...
Claims
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IPC IPC(8): B23H11/00B23H7/02
Inventor 梁瑞芳
Owner 昆山徕通机电科技有限公司