2018年12月10日星期一

Busbar processing machine cutting copper row processing

Busbar processing machines, sometimes called wire cutting. The basic working principle is to use a continuously moving copper row abrasive as an electrode to cut and cut the workpiece. It is mainly used for processing various shapes and delicate and precise workpieces, such as punches, dies, embossing dies, fixing plates, unloading plates, etc. for forming dies, forming knives, stencils, metal electrodes for EDM Various micro-holes, narrow slits, arbitrary curves, etc., have outstanding advantages such as small machining allowance, high machining precision, short production cycle and low manufacturing cost. They have been widely used in production, and the current domestic and international electric sparks Wire cutting machines account for more than 60% of the total number of electric machine tools. According to the operating speed of the wire, the WEDM machine is usually divided into two categories: one is the high-speed wire EDM machine (WEDM-HS), the wire is used for high-speed reciprocating motion, the general wire speed is 8 ~10ms, the electrode wire can be reused, the processing speed is high, but the quick wire is easy to cause the wire to shake and the pause in the reverse direction, so that the processing quality is degraded. It is the main machine produced and used in China, and it is also the original electric spark in China. The wire cutting processing mode; the other is the low speed wire EDM machine (WEDM-LS), the wire is used for low speed one-way movement, the general wire speed is less than 0.2ms, the bus processing machine no longer cuts the copper bar Use, work smooth, uniform, small jitter, good processing quality, but low processing speed, is the main machine for foreign production and use. According to different control forms of the wire trajectory, the WEDM machine can be divided into three types: the first one is the imitation shape control, which pre-manufactures the same shape as the workpiece before the wire cutting process, processing At the same time, the workpiece blank and the mold are clamped on the machine table at the same time. During the cutting process, the wire is moved tightly against the edge of the die to cut the workpiece with the same shape and precision; the second is photoelectric Tracking control, before the wire cutting process, first draws a photoelectric tracking map according to the part pattern according to a certain magnification ratio. When processing, the pattern is placed on the photoelectric tracking table of the machine tool, and the photoelectric head on the tracking table always follows the ink line pattern. The trajectory movement, by means of electrical and mechanical linkage, controls the machine table to move in a similar shape with the workpiece relative to the wire, thereby cutting out the same shape as the pattern; the third is digital program control, using advanced Digital automatic control technology, which drives the machine tool according to the CNC machining program pre-programmed according to the workpiece geometry parameters before machining. Into processing, do not require a master plate does not need to draw an enlarged view, with higher machining accuracy and broad range of applications than the previous two forms of control, at home and abroad more than 95% of copper has been adopted NC processing machine.

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