CN206869150U - A kind of multipurpose scroll chuck - Google Patents

Abstract

A kind of multipurpose scroll chuck is the utility model is related to, the claw that can be moved radially simultaneously on chuck body end face is arranged on comprising chuck body, at least three；Right-angle notch is provided with the outside of the clamping part of the claw；Screwed hole is provided with the right-angle notch, the fixture block concordant with clamping part bottom surface is additionally provided with the right-angle notch；The fixture block is threadedly coupled by bolt with screwed hole to be fixed in right-angle notch；The utility model is applicable not only to typical circular workpiece, and for longaxones parts and Variable pitch screw, can effectively prevent axial displacement, improve dimensional accuracy, and accurate positioning, convenient installation.

Description

A multi-purpose three-jaw chuck

technical field

The utility model relates to the field of chucks, in particular to a multipurpose three-jaw chuck.

Background technique

In the current ordinary lathes, economical CNC lathes, grinding machines, milling machines, drilling machines and machine tools, three-jaw chucks are widely used to clamp circular workpieces for cutting.

At present, in the cutting process of long-axis parts and screws, especially the variable-pitch screw, due to the excessive axial cutting force, the blank is easy to axially shift on the three-jaw chuck, resulting in inaccurate dimensional accuracy of processing, and seriously becoming a waste product , greatly increasing production costs.

Utility model content

The purpose of the utility model is to provide a multi-purpose three-jaw chuck in order to overcome the deficiencies of the prior art. For long-axis parts and variable-pitch screw rods, it not only has accurate positioning and is convenient for installation, but also can effectively prevent axial displacement and increase the size. precision.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a multi-purpose three-jaw chuck, including a chuck body and at least three jaws arranged on the end surface of the chuck body that can move radially at the same time; it is characterized in that : the outside of the clamping part of the claw is provided with a right-angle notch; a threaded hole is arranged in the right-angle notch, and a block flush with the bottom surface of the clamping part is also arranged in the right-angle notch; the block passes through The bolt and the threaded hole are threaded and fixed in the right-angle notch.

Preferably, both the bottom surface of the right-angled notch and the bottom surface of the block are provided with grid-like textures.

Preferably, the threaded holes are arranged on the side of the right-angle notch.

Preferably, the block is made of carbon tool steel.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The multi-purpose three-jaw chuck described in the utility model is not only suitable for ordinary circular workpieces, but also for long-axis parts and variable-pitch screw rods, can effectively prevent axial displacement, improve dimensional accuracy, and has accurate positioning and convenient installation.

Description of drawings

Below in conjunction with accompanying drawing, technical scheme of the utility model is further described:

Accompanying drawing 1 is the structural representation of multi-purpose three-jaw chuck described in the utility model;

Accompanying drawing 2 is another kind of state schematic diagram of multi-purpose three-jaw chuck described in the utility model;

Accompanying drawing 3 is the structural representation of claw in the utility model.

Among them: 1. Chuck body; 2. Claw; 21. Clamping part; 22. Right-angle notch; 23. Threaded hole; 3. Bolt; 4. Block.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Accompanying drawing 1-3 is the multi-purpose three-jaw chuck described in the utility model, comprises chuck body 1, jaw 2, small bevel gear and large bevel gear; The middle of described chuck body is provided with for placing workpiece through hole; the large bevel gear and the small bevel gear mesh and the back of the large bevel gear is provided with a spiral groove; the claws 2 are provided with three, and are evenly arranged on the end surface of the chuck body 1 at an angle of 120 degrees. Engage with the spiral groove; the end of the small bevel gear away from the axis of the chuck body is provided with a square hole for the insertion of a wrench; the outside of the clamping part 21 of the claw 2 is provided with a right-angle notch 22; the inside of the right-angle notch 22 Threaded holes 23 are provided, and a block 4 flush with the bottom surface of the clamping portion 21 is also arranged in the right-angle notch 22; When cutting ordinary circular workpieces, since the bottom surface of the block 4 is flush with the bottom surface of the clamping part 21, it can be used like the existing three-jaw chuck. When cutting long shaft parts or variable pitch screws, the block 4 is moved from the The jaws 2 are removed, and the workpiece is clamped by the right-angle notch 22, thereby effectively preventing axial displacement and improving dimensional accuracy, and the size of the right-angle notch 22 is fixed, which is not only convenient for installation, but also accurate in positioning, which can greatly save installation costs. Clamping time; the bottom surface of the right-angle notch 22 and the bottom surface of the block 4 are all provided with grid-like lines, which increase friction and make the holding more stable; the threaded hole 23 is arranged on the side of the right-angle notch 22, which is not only convenient for screwing The bolt 3 is safe to operate; the block 4 is made of carbon tool steel, which is wear-resistant and has a long service life.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The multi-purpose three-jaw chuck described in the utility model is not only suitable for ordinary circular workpieces, but also for long-axis parts and variable-pitch screw rods, can effectively prevent axial displacement, improve dimensional accuracy, and has accurate positioning and convenient installation.

The above are only specific application examples of the utility model, and do not constitute any limitation to the protection scope of the utility model. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the utility model.

Claims (4)

1. a kind of multipurpose scroll chuck, it is arranged on chuck body end face and can moves radially simultaneously comprising chuck body, at least three Claw；It is characterized in that：Right-angle notch is provided with the outside of the clamping part of the claw；Spiral shell is provided with the right-angle notch Pit, the fixture block concordant with clamping part bottom surface is additionally provided with the right-angle notch；The fixture block passes through bolt and screwed hole spiral shell Line is fastened in right-angle notch.

2. multipurpose scroll chuck according to claim 1, it is characterised in that：The bottom surface of the right-angle notch and fixture block Bottom surface is provided with latticed lines.

3. multipurpose scroll chuck according to claim 2, it is characterised in that：The screwed hole is arranged on right-angle notch Side.

4. according to the multipurpose scroll chuck described in claim 1 or 2 or 3, it is characterised in that：The fixture block is by carbon tool steel It is made.