Title:
PALLET CHANGING DEVICE FOR MACHINE TOOL
Document Type and Number:
Japanese Patent JP3228185
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pallet changing device in a simple structure with smooth operation.
SOLUTION: When a rotationally moving cylinder 26 is elongated, a rotationally moving arm 25 is rotationally moved 90° around a pivotal axis 29 as a supporting point in the order of (a), (b), (c) to turn a changing arm 1 180° around a center axis 4 so that a pallet Pa being placed on a step board is put on a working table and a pallet Pb being placed on the working table is put on the step board. The changing arm 1 is accelerated at the beginning of operation and decelerated at the end of operation. Smooth acceleration and deceleration are thus ensured and an impact in turning and stopping is decreased to greatly improve durability.
Inventors:
Shuji Fujita
Application Number:
JP15717497A
Publication Date:
November 12, 2001
Filing Date:
June 13, 1997
Export Citation:
Assignee:
Niigata Iron Works Co., Ltd.
International Classes:
B23Q7/00; (IPC1-7): B23Q7/00
Domestic Patent References:
| JP4947983A | ||||
| JP62102945A | ||||
| JP62104837U |
Other References:
【文献】1983年5月10日 理工学社発行「メカニズムの事典」P45
Attorney, Agent or Firm:
Masatake Shiga (6 people outside)