The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1998
Filed:
Dec. 24, 1996
Takehiko Hayashi, Toyota, JP;
Takaaki Hayashi, Kariya, JP;
Sentarou Sugita, Nagoya, JP;
Takeshi Nishikayama, Kariya, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A clamping system has a clamping device inserted in an installing hole formed in a fixture base, a cylinder unit for operating a clamp and a detection unit for detecting operation positions of the clamp, both of which are formed in the clamping device. In the fixture base, there are formed clamping fluid supplying passages for supplying clamping fluid and detection fluid supplying passages for supplying detection fluid, in which pressure switches are provided. And also, in the clamping device, there are formed detection fluid supply passages and clamping fluid supply passages. When the clamping device is inserted into an installing hole formed in the fixture base, the clamping fluid supplying passages are communicated with clamping fluid supply passages, and also the detection fluid supplying passages is communicated with the detection fluid supply passages through nozzles formed in the cylinder unit. The nozzles are opened and closed due to a movement of a piston formed in the cylinder unit, so that air pressures in the detection fluid supplying passages change, and operation states of the clamp is detected. Further, each of the units is constructed as a unit, so that it is easy to change the setup due to different workpieces.