CN218015864U

CN218015864U - Quick-change clamping tool for multiple high-precision circular workpieces

Info

Publication number: CN218015864U
Application number: CN202222463978.4U
Authority: CN
Inventors: 张宗宽; 朱承刚
Original assignee: Anyang Honggang Machinery And Equipment Co ltd
Current assignee: Anyang Honggang Machinery And Equipment Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-13
Anticipated expiration: 2032-09-19

Abstract

Many varieties high accuracy circular workpiece quick change presss from both sides tight frock, including air chuck, the last pneumatic drive's of having of air chuck radial moving member, jack catch fixed connection is on radial moving member, the jack catch constitute by base jaw and dop, the dop pass through the bolt can dismantle fixed connection on the base jaw, the interior terminal surface of dop is concave arc shape, curved middle part processing has the rectangular channel, the dop have a variety, the concave arc's of interior terminal surface diameter of multiple dop is different, concave arc's centre of a circle is located air chuck's axis. The tool is good in clamping effect and achieves quick replacement.

Description

Quick-change clamping tool for multiple high-precision circular workpieces

Technical Field

The utility model relates to a pneumatic three-jaw chuck on the lathe, in particular to press from both sides the pneumatic three-jaw chuck of dress to the higher circular work piece of machining precision requirement belongs to and equips technical field.

Background

With the development of numerical control machine tools, a pneumatic chuck and a hydraulic chuck gradually replace a manually driven three-jaw chuck, in the current circular workpiece processing, a workpiece is clamped by a commonly used three-jaw pneumatic chuck, the pneumatic three-jaw chuck drives a radial moving part on the chuck to move along a radial direction by taking gas as power, and jaws are fixedly connected to the radial moving part through bolts, so that high-precision self-centering can be realized.

Disclosure of Invention

The utility model aims to overcome and adopt present pneumatic three-jaw chuck to press from both sides the problem that can't realize higher machining precision of dress circular workpiece, provide a tight frock is pressed from both sides in the quick change of many varieties high accuracy circular workpiece.

In order to realize the purpose of the utility model, the following technical proposal is adopted: many varieties high accuracy circular workpiece quick change presss from both sides tight frock, including air chuck, the last pneumatic drive's of having of air chuck radial moving member, jack catch fixed connection is on radial moving member, the jack catch constitute by base jaw and dop, the dop pass through the bolt can dismantle fixed connection on the base jaw, the interior terminal surface of dop is concave arc shape, curved middle part processing has the rectangular channel, the dop have a variety, the concave arc's of interior terminal surface diameter of multiple dop is different, concave arc's centre of a circle is located air chuck's axis.

Further, the method comprises the following steps of; a plurality of parallel V-shaped long grooves are processed on the concave arc-shaped surface, and the length direction of the V-shaped long grooves is along the axial direction of the air chuck.

Further, the method comprises the following steps of; the width of the rectangular groove is 40mm.

Further, the method comprises the following steps of; the V-shaped bottom angle of the V-shaped long groove is 55 degrees.

The utility model discloses an actively beneficial technological effect lies in: this frock adopts the arc dop, has the V-arrangement groove on the arc dop, circular workpiece cooperation adopts the concave arc dop of the same diameter, it is big to press from both sides tight area of contact, the work piece is stable in the course of working, change behind the different work pieces corresponding concave arc dop can, base claw fixed connection need not frequent dismantlement on radial moving member, guaranteed frequent dismantlement on the one hand to radial moving member on the connection structure's wearing and tearing, destruction, weight when on the other hand reduces the change, quick replacement has been realized.

Drawings

Fig. 1 is a schematic view of the present invention using a diameter chuck.

Fig. 2 is a schematic view of another diameter chuck of the present invention.

Fig. 3 is a front view of the base jaw.

FIG. 4 is a side view of the base jaw.

Fig. 5 is a bottom view of the base jaw.

Fig. 6 is a front view of a model chuck.

Fig. 7 is a side view of the chuck of fig. 6.

Fig. 8 is a bottom view of the chuck of fig. 6.

Detailed Description

In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which the reference symbols refer to: 1: a pneumatic three-jaw chuck body; 2: a base jaw; 3: clamping a head; 201, connecting hole A;202: a connecting hole B;301: a concave arc shape; 302: a rectangular groove; 303: and a V-shaped groove.

As shown in the attached drawings, 1 is a pneumatic three-jaw chuck main body, a base jaw 2 is connected to a radial moving piece of the pneumatic three-jaw chuck through a bolt arranged in a connecting hole A in a penetrating mode, and a chuck 3 is fixedly connected with the base jaw through the bolt; the connecting holes B and the connecting holes C are corresponding connecting holes on the base jaw and the clamping head, the end face of the clamping head is in a concave arc shape 301, the middle of the arc shape is provided with a rectangular groove 302, the width of the rectangular groove is 40mm, a plurality of parallel V-shaped long grooves are formed in the concave arc-shaped face, the length direction of the V-shaped long grooves is along the axial direction of the pneumatic chuck, the V-shaped bottom angle of each V-shaped long groove is 55 degrees, the clamping heads are in various types, the diameters of the concave arc shapes of the inner end faces of the various clamping heads are different, and the circle center of the concave arc shape is located on the axis of the pneumatic chuck.

As specific example, the utility model provides a dop of 6 kinds of differences, do respectively:

1. the diameter of the circular workpiece is 175mm, and the corresponding circular angle of the concave arc is 96 degrees;

2. the circular angle corresponding to the concave arc is 86 degrees;

3. the circular angle corresponding to the concave arc is 72 degrees for a circular workpiece with the diameter of 241 mm;

4. the circular angle corresponding to the concave arc is 64 degrees;

5. the circular angle corresponding to the concave arc shape of a circular workpiece with the diameter of 302mm is 64 degrees;

6. the diameter of the circular workpiece is 325mm, and the circular angle corresponding to the concave arc is 64 degrees;

7. the diameter of the circular workpiece is 325mm, and the circular angle corresponding to the concave arc is 56 degrees;

the V-shaped long grooves on two sides of the chuck rectangular groove are all 7.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims

1. Tight frock of circular work piece quick change clamp of many varieties high accuracy, including air chuck, air chuck is last to have pneumatic drive's radial moving member, and jack catch fixed connection is on radial moving member, its characterized in that: the clamping jaw consists of a base jaw and clamping heads, the clamping heads are detachably and fixedly connected to the base jaw through bolts, the inner end faces of the clamping heads are in concave arc shapes, rectangular grooves are formed in the middle of the arc shapes, the clamping heads are multiple, the diameters of the concave arc shapes of the inner end faces of the multiple clamping heads are different, and the circle centers of the concave arc shapes are located on the axis of the pneumatic chuck.

2. The multi-variety high-precision quick-change clamping tool for the circular workpieces as recited in claim 1, wherein: a plurality of parallel V-shaped long grooves are processed on the concave arc-shaped surface, and the length direction of the V-shaped long grooves is along the axial direction of the air chuck.

3. The multi-variety high-precision quick-change clamping tool for the circular workpieces as recited in claim 1, which is characterized in that: the width of the rectangular groove is 40mm.

4. The multi-variety high-precision quick-change clamping tool for the circular workpieces as recited in claim 2, wherein: the V-shaped bottom angle of the V-shaped long groove is 55 degrees.