A bearing ring expansion fixture

A bearing ring and expansion type technology, which is applied in the field of bearing ring expansion type fixtures, can solve the problems of long tightening and loosening time and complicated fixture adjustment.

Active Publication Date: 2017-10-13
DEQING TIANMA BEARING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adjustment of the fixture is also more complicated, and the time for tightening and loosening is longer

Method used

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  • A bearing ring expansion fixture
  • A bearing ring expansion fixture
  • A bearing ring expansion fixture

Examples

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Embodiment Construction

[0034] A detailed description will be given below of specific embodiments of the present invention according to the accompanying drawings.

[0035] according to Figure 1 to Figure 14 As shown, this embodiment is a bearing ring expansion fixture, including a transition plate 1 connected to the machine tool spindle 7, a collet seat 3 connected to the transition plate, and a positioning ring 4 installed on the collet seat and jaw 5;

[0036] The chuck seat is tubular, the front side of the chuck seat is the claw installation part for installing the jaws, and the fixed shoulder 32 for installing the positioning ring is formed on the rear side of the jaw installation part on the chuck seat;

[0037] The front wall of the chuck seat is equidistantly provided with six cut grooves 36 along the axial direction, and the middle part of the chuck seat wall is provided with elliptical grooves 31 corresponding to the positions of the cut grooves;

[0038] The positioning ring 4 is compos...

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PUM

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Abstract

The invention discloses an outward expansion type clamp for a bearing ring. The outward expansion type clamp comprises a transition disc connected with a machine-tool main shaft, a chuck base connected with the transition disc, a positioning ring and a clamping jaw, wherein the positioning ring and the clamping jaw are installed on the chuck base. The chuck base is tubular. A clamping jaw installing part where the clamping jaw is installed is arranged on the front side of the chuck base. A fixing shoulder where the positioning ring is installed is formed at the portion, located on the back side of the clamping jaw installing part, of the chuck base. Six slotted grooves are axially formed in the wall face of the front portion of the chuck base at equal intervals. A conical surface with the wide outer portion and the narrow inner portion is formed on the inner circumference of the front end of the chuck base. The outward expansion type clamp further comprises a middle pull rod connected with a piston rod in the middle of the machine-tool main shaft and a front pull rod connected with the middle pull rod. A conical surface matched with the conical surface of the chuck base is formed on the outer wall of the back portion of the front pull rod. After the novel clamp comes into use, the installation speed is two times that of a traditional expansion type spring clamp, and the debugging time is a half of the original debugging time; and in addition, the outer diameter of the clamping jaw can be repeatedly polished, and the service life is several times that of the original clamp.

Description

technical field [0001] The invention relates to an externally expanding clamp for a bearing ring. Background technique [0002] The traditionally used external expansion spring clamp requires more parts, and a newly processed external expansion spring chuck is generally composed of 6 petals or 9 petals or even 12 petals. A whole chuck is cut into several petals At the same time, these petals will be fixed by brazing. After they are completely cut, they are still a whole because of the brazing. Then grind the outer diameter of the chuck to ensure its concentricity and ellipse with the inner hole of the chuck. degree etc. Before using the new collet, knock off the brazing used to fix it, and then use two springs to fix the petals of the collet in place. Such a new external expansion collet can be put into use. Since the external expansion collet is fixed by a spring, after the outer diameter of the collet is worn, there is no way to repair it by itself, only discard it and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B31/177B23Q3/12
CPCB23B31/16233B23Q3/12B23Q2703/10
Inventor 时大方刘国仓谢维兵王辉
Owner DEQING TIANMA BEARING CO LTD
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