| 摘要 |
PURPOSE: To attain automatic cleaning between a tool carrier and a tool holder and automatic position detection of a changed tool by supplying compressed air while positioning the tool carrier to the tool holder, and recording the dam-up pressure of compressed air flowing in after tightening a tool, as a control signal. CONSTITUTION: After a tool carrier 3 is removed from a tool reference holder 2, compressed air is automatically introduced into a hole 5 of a tool shaft 1, and the compressed air reaches a receiving hole of a connecting place through holes 9, 10 and is distributed to a ring-like inner chamber so as to clean a range of a drive part 13 of a tightened part. On the basis of a ring clearance formed at the time of introducing a tightening pin 15 of the carrier 3 into a receiving hole 4 of the holder, the compressed air flows out at high speed to clean a fitting range of a tool receiving part. After cleaning, a changed tool position is detected, end faces 19, 20 are pressure bonded to close the clearance 21, and damp-up pressure is generated by the air flowing in successively. This pressure is recorded by a pressure limiting switch, and in the case of the recorded pressure being sufficiently high, a machine is released for new operation. |
