Rotary table and clamping mechanism

Patent metadata

Field	Value
Publication number	US-2016207156-A1
Application number	US-201614996672-A
Country	US
Kind code	A1
Filing date	Jan 15, 2016
Priority date	Jan 16, 2015
Publication date	Jul 21, 2016
Grant date	—

Abstract

A rotary table, which is provided with a rotating shaft rotatably disposed in a casing and a clamping mechanism configured to disable the rotating shaft from rotating, is designed so that another clamping mechanism, in addition to the first clamping mechanism, can be connected to the rotating shaft, whereby a clamping torque twice that of a rotary table with a single clamping mechanism can be produced.

First claim

1 . A rotary table which comprises a rotating shaft rotatably disposed in a casing and a clamping mechanism configured to disable the rotating shaft from rotating,
the clamping mechanism comprising: a first clamping mechanism comprising a first cylinder secured or removably disposed in the casing, a first piston provided in a first space section defined in the first cylinder and configured to reciprocate in the first space section as a working fluid is delivered to or from the first space section, and a first brake disk configured to engage the first piston, thereby disabling the rotating shaft from rotating; and at least one second clamping mechanism comprising a second cylinder removably disposed relative to the first cylinder, a second piston provided in a second space section defined in the second cylinder and configured to reciprocate in the second space section as the working fluid is delivered to or from the second space section, and a second brake disk configured to engage the second piston, thereby disabling the rotating shaft from rotating.

2 . The rotary table according to claim 1 , wherein a plurality of second clamping mechanisms are mounted along the axis of the rotating shaft.

3 . The rotary table according to claim 1 , wherein the first and second clamping mechanisms are configured to be fitted with a lid each.

4 . A clamping mechanism configured to be mounted in a multistage arrangement on a rotary table in order to disable a rotating shaft rotatably disposed in a casing from rotating, the clamping mechanism comprising:
a cylinder; a piston provided in a space section defined in the cylinder and configured to reciprocate in the space section as a working fluid is delivered to or from the space section; and a brake disk configured to engage the piston, thereby disabling the rotating shaft from rotating.

Assignees

• Fanuc Corp

Inventors

• Xia Zhizhen

Classifications

• B23Q1/26 Primary

  characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members {(bearings for linearly moving parts F16C29/00)} · CPC title

• F16D55/32

  actuated by a fluid-pressure device arranged in or on the brake · CPC title

• B23Q16/105 Primary

  clamping with a disc brake · CPC title

• B23Q2220/004

  Rotary tables · CPC title

• F16D55/025

  with two or more rotating discs at least one of them being located axially · CPC title