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HSK TYPE HEADSTOCK HAVING FUNCTION FOR SENSING TOOL
HSK TYPE HEADSTOCK HAVING FUNCTION FOR SENSING TOOL
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机译:具有感应工具的HSK型头枕功能
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摘要
The present invention relates to an HSK type headstock including a tool sensing function, capable of saving manufacturing costs without a constraint on space, and increasing accuracy by sensing whether a tool exists or not by sensing air pressure in a chamber, formed by a headstock body and a pin of the headstock, and an air passage, connected to the chamber, not installing a proximity sensor around the tool. The present invention comprises: a headstock body installed in a machine tool; a front cover installed in front of the headstock body; a spindle installed inside the headstock body to deliver rotational force; a bearing installed between the headstock body and the spindle; a drawbar installed inside the spindle; a collet installed at a front end of the drawbar to clamp or unclamp the tool by moving the drawbar forward and backward; a spring installed between the drawbar and the spindle; a pin installed at a rear end of the drawbar; a cylinder at a rear end of the pin; a dog installed on a side of the cylinder; unclamping and clamping sensors installed around the dog; an air passage connected to the chamber, formed by the pin and the headstock, while being formed inside the headstock body; an air supply device connected to the air passage; and an air catch sensor sensing pressure of air supplied from the air supply device to the chamber.
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