阅读说明：本技术 一种用于车加工的专用三爪卡盘 (Special three-jaw chuck for turning ) 是由 董延雪 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种用于车加工的专用三爪卡盘,其特征在于,包括底盘和卡爪,所述的底盘为圆形的车床底盘,所述的卡爪包括连接块和角卡爪,所述的角卡爪为钝角型,所述的卡爪设在底盘的径向上方,所述的连接块通过螺栓固定在底盘上,本发明主要目的在于利用三角型稳定原理,三卡爪可以对工件在加工时装夹稳定,同时卡爪前端为角卡爪可以更好的稳定六角件,角卡爪的内角处通过圆弧型导槽防止六角件上的毛刺影响工件加工时的偏心情况。(The invention discloses a special three-jaw chuck for turning, which is characterized by comprising a chassis and jaws, wherein the chassis is a circular lathe chassis, the jaws comprise connecting blocks and angle jaws, the angle jaws are obtuse-angle-shaped, the jaws are arranged above the chassis in the radial direction, and the connecting blocks are fixed on the chassis through bolts.)

1. The special three-jaw chuck for turning is characterized by comprising a chassis and jaws, wherein the chassis is a circular lathe chassis, the jaws comprise connecting blocks and angle jaws, the angle jaws are obtuse-angle-shaped, the jaws are arranged radially above the chassis, and the connecting blocks are fixed on the chassis through bolts.

2. The special three-jaw chuck for lathing according to claim 1, wherein the front end of the corner jaw is an obtuse-angle type corner jaw, and an arc-shaped guide groove is formed at the inner angle of the corner jaw.

3. The special three-jaw chuck for lathing according to claim 1, wherein the number of the jaws in the radial direction of the base plate is three, and the jaws are equally divided into three equal parts in the radial direction of the base plate.

4. The special three-jaw chuck for lathing according to claim 1, wherein the obtuse inner walls of the corner jaws are provided with spacers made of aluminum material.

Technical Field

The invention belongs to the technical field of lathe chucks, and particularly relates to a special three-jaw chuck for turning.

Background

The three-jaw chuck is a workpiece clamping accessory of a machine tool, is an important part for clamping and positioning workpieces, can be used for machining regular workpieces such as circles and squares at present, but a plane jaw cannot stably clamp when a hexagonal part is clamped, the front end face of the jaw of the traditional three-jaw chuck is flat, and when burrs appear at six corners of the hexagonal part, direct clamping can be realized by tilting one end of the workpiece to cause rotation eccentricity of the workpiece during working.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides a special three-jaw chuck for turning, which comprises a chassis and jaws, wherein the chassis is a circular lathe chassis, the jaws comprise connecting blocks and angle jaws, the angle jaws are obtuse-angle type, the jaws are arranged on the radial direction of the chassis, and the connecting blocks are fixed on the chassis through bolts.

Furthermore, the front end of the angle clamping claw is an obtuse angle type angle clamping claw, and an arc guide groove is formed in the inner angle of the angle clamping claw.

Furthermore, the number of the claws in the radial direction of the chassis is three, and the claws are equally divided into three parts in the radial direction of the chassis.

Furthermore, the obtuse-angle inner wall of the angle clamping jaw is provided with a gasket, and the gasket is made of aluminum materials.

Has the advantages that:

the special three-jaw chuck used by the invention utilizes the triangle stabilization principle, the three jaws can stably clamp the workpiece during processing, meanwhile, the front ends of the jaws are angle jaws which can better stabilize the hexagonal piece, and the inner corners of the angle jaws prevent burrs on the hexagonal piece from influencing the eccentric condition during processing the workpiece through the arc guide grooves.

Drawings

FIG. 1 is a schematic view of a special three-jaw chuck for lathing;

in the figure: 1. connecting block, 2, angle jack catch, 3, base, 4, bolt.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

The implementation example is as follows:

the special three-jaw chuck for turning comprises a chassis and jaws, wherein the chassis is a round lathe chassis, the jaws comprise connecting blocks and angle jaws, the angle jaws are obtuse-angle type, the jaws are arranged radially above the chassis, and the connecting blocks are fixed on the chassis through bolts.

As shown in figure 1, the angle clamping claw 2 is connected with the connecting block 1 to form a clamping claw structure, the clamping claws are arranged on the base 3 in a trisection mode with 120 degrees as a reference and move upwards to clamp a workpiece, a hexagonal piece is installed in the center of the base 3, and the base 3 rotates to prepare for machining.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.