| 摘要 |
A seal structure channels drainage of machining fluid from the periphery of an opening for a lower arm of a wire-cut electric discharge machine. The seal structure restricts flowage to the outside of machining fluid through the opening (slot) in a side of a machining tank and has a first seal and a second seal (a seal plate) affixed to the first seal so as to cover the opening. An unevenly shaped part including ridges and grooves extending in the long direction of the first seal is formed on the first seal, and passages are provided that communicate with the groove and the outside to channel the machining fluid drainage path. The first seal may be composed of a plurality of members. A suction device sucks up machining fluid draining from the passages.
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