Title:
CLAMP SYSTEM EQUIPPED WITH FUNCTION FOR DETECTING BEHAVIOR OF OBJECT TO BE CLAMPED
Document Type and Number:
WIPO Patent Application WO/2020/026933
Kind Code:
A1
Abstract:
Provided is a clamp system with enhanced functionality achieved by detecting the behavior of an object to be clamped, using a stroke-end position detector that has been used for switching stroke operations. A clamp device 1 has an output member 12 which executes a stroke movement causing a change in the distance by which a coil 15 is inserted into a hole 14 having a bottom. A converter 23 outputs a measurement value of the inductance of the coil 15. The inductance of the coil 15 when a work W has been clamped by the output member 12 is stored in a work clamp point memory 22e, and a clamp area indicating a variation range permitted with respect to a work clamp point is set in a clamp area memory. During processing of the work, a control unit 2 measures the inductance of the coil 15, determines whether the work clamp point is within the range of the clamp area, and, if the range is exceeded, issues a signal indicating an emergency stop.
Inventors:
AKAMATSU HIROSHI (JP)
Application Number:
PCT/JP2019/029185
Publication Date:
February 06, 2020
Filing Date:
July 25, 2019
Export Citation:
Assignee:
KOSMEK LTD (JP)
International Classes:
B23Q3/06; B23B31/00; B23Q17/00
Domestic Patent References:
| WO2016139726A1 | 2016-09-09 |
Foreign References:
| JP2006218580A | 2006-08-24 | |||
| JPH0674209U | 1994-10-21 | |||
| JPH0671005U | 1994-10-04 | |||
| JP2006320979A | 2006-11-30 | |||
| JPH0219440U | 1990-02-08 | |||
| JP2006317387A | 2006-11-24 | |||
| JP3280345B2 | 2002-05-13 | |||
| JP2003156304A | 2003-05-30 |
Other References:
See also references of EP 3804903A4
Attorney, Agent or Firm:
KASEGUMA Tsuguhisa (JP)
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