Chuck and clamp with quick change function

Patent metadata

Field	Value
Publication number	US-9821377-B2
Application number	US-201514794276-A
Country	US
Kind code	B2
Filing date	Jul 8, 2015
Priority date	Jul 8, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A chuck with a chuck body having a guide opening and an actuating element, and with at least one interchangeable clamp that can be inserted into the guide opening. The clamp has associated therewith a rotary disk with a blocking element that secures the rotary disk against rotation relative to the chuck body during insertion of the clamp into the guide opening. This makes it possible that, upon a rotation of the clamp about the longitudinal axis in the guide opening, a segment can be displaced outward toward the chuck body by the rotation relative to the rotary disk, via which the clamp is detachably secured on the chuck body. A clamp with a clamp body, a pivot body located in the clamp body, and a chucking element is also provided. The clamp has, at the opposite end of the clamping element, a locking unit that carries the pivot body.

First claim

What is claimed is:

1. A chuck comprising:
a chuck body having a guide opening and an actuating element;
at least one interchangeable clamp insertable into the guide opening;
a rotary disk associated with the clamp; and
a blocking element that secures the rotary disk against rotation relative to the chuck body during insertion of the clamp into the guide opening,
wherein, upon a rotation of the clamp about the longitudinal axis in the guide opening, a segment is displaced outward toward the chuck body by the rotation relative to the rotary disk for detachable securing of the clamp on the chuck body, and
wherein the segment and the rotary disk have a bearing element coupling them, wherein the clamp has a cover with a guide slot, and wherein the segment has a guide that is moved in the guide slot during a rotational motion of the clamp.

2. The chuck according to claim 1 , wherein the chuck body has a radially formed blocking element receptacle for the blocking element projecting laterally from the rotary disk.

3. The chuck according to claim 1 , wherein the segment is a latch in the form of a segment of a reference circle.

4. The chuck according to claim 1 , wherein a groove serves to receive the outward-movable segment and is formed in the actuating element.

5. The chuck according to claim 1 , wherein the segment is provided in multiple instances that are uniformly distributed over the circumference and are provided with a corresponding number of the guide and bearing elements, wherein the cover has a number of guide slots equivalent to the corresponding number of the guide, and wherein the actuating element has a corresponding number of grooves or one groove extending radially over an inner circumference of the actuating element.

6. The chuck according to claim 1 , wherein the chuck body has a securing mechanism, and wherein a clamp body of the clamp has a guide slot that permits translational and rotational motion of the securing mechanism during rotation of the clamp.

7. A chuck comprising:
a chuck body having a guide opening and an actuating element;
at least one interchangeable clamp insertable into the guide opening;
a rotary disk associated with the clamp; and
a blocking element that secures the rotary disk against rotation relative to the chuck body during insertion of the clamp into the guide opening,
wherein, upon a rotation of the clamp about the longitudinal axis in the guide opening, a segment is displaced outward toward the chuck body by the rotation relative to the rotary disk for detachable securing of the clamp on the chuck body, and
wherein the clamp has an elastic thrust piece in a thrust piece receptacle, which slides into a recess of the rotary disk during rotation of the clamp relative to the rotary disk and serves to align the rotary disk and the blocking element relative to the chuck.

Assignees

• Roehm Gmbh

Inventors

• Derheim Waldemar

Classifications

• B23B31/2072 Primary

  Axially moving cam, fixed jaws · CPC title

• B23B31/4033

  using mechanical transmission through the spindle (B23B31/4026 takes precedence) · CPC title

• Y10T279/17888

  Tang offset within socket · CPC title

• B23B31/26

  using mechanical transmission through the working-spindle {(B23B31/16 and B23B31/40 take precedence)} · CPC title

• B23B31/113

  Retention by bayonet connection · CPC title