CN204748320U

CN204748320U - A fixture attachment for processing thin wall bearing ring

Info

Publication number: CN204748320U
Application number: CN201520547937.0U
Authority: CN
Inventors: 张�林; 张亭亭; 李红; 徐浩; 郝雪玲; 王长峰; 杜治国
Original assignee: Luoyang Bearing Science and Technology Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2015-07-27
Filing date: 2015-07-27
Publication date: 2015-11-11
Anticipated expiration: 2025-07-27

Abstract

The utility model provides a fixture attachment for processing thin wall bearing ring, the mill processing field that belongs to the bearing, this fixture attachment sets up on the electromagnet of flat grinder equipment, by three with wait that it constitutes to process the soft claw of arc that thin wall bearing ring outer wall radian is the same, all be provided with the locking ball at the soft claw medial surface of three arc, and the upper surface of three locking ball is located same horizontal plane, so that the soft claw of three arc is held tightly when waiting to process thin wall bearing cover outer wall, wait that the bottom that processes thin wall bearing ring is in on the plane of three locking ball constitution, and this plane and electromagnet's surface parallel, like this when abrasive machining, thin wall bearing ring only receives the packing force of the soft claw external diameter of arc, the ring face receives the effect of electromagnetic force very faint, almost be in free state, and guarantee that thin wall bearing ring terminal surface is at the coplanar, the condition that can not take place elastic deformation behind the face grinding has just so been guaranteed, the technical requirement of plane degree has finally been guaranteed.

Description

A kind of clamp fixture for processing thin-walled bearing ring

Technical field

The utility model relates to the mill manufacture field of bearing, specifically a kind of clamp fixture for processing thin-walled bearing ring.

Background technology

Thin-wall bearing ferrule is in mill manufacturing procedure, the flatness problems with respect of end face is a great problem of puzzlement bearing industry always, especially for the bearing ring of outside dimension d> Ф 200mm thin wall, on common plane equipment after processing, parallel error can reach designing requirement, but flatness is difficult to reach requirement.Main cause is that processing method is unreasonable because on general process equipment.The grinding of thin-wall bearing ring face is sucked by part end face by magnechuck, wheel grinding other end, suction due to magnechuck F causes lasso to be out of shape, along with the disappearance of electromagnetic attraction after grinding, lasso restores to the original state again, as shown in Figure 1, reprocessabilty like this can not solve the overproof problem of flatness at all.If flatness does not reach designing requirement, the gross distortion of bearing will be caused when bearing finished products loads axial pre tightening force, greatly reduce the serviceability of bearing.

Utility model content

The problem of designing requirement is not reached for solving thin-wall bearing ferrule adding man-hour flatness, the utility model provides a kind of clamp fixture for processing thin-walled bearing ring, solve a flatness difficult problem for thin-wall bearing ferrule grinding end face, under the prerequisite not changing this body structure of common plane grinding machine equipment, this frock is used to solve the flatness problems with respect of thin-walled lasso, structure is simple, easy to use.

The utility model is the technical scheme solving the problems of the technologies described above employing: a kind of clamp fixture for processing thin-walled bearing ring, this clamp fixture is arranged on the magnechuck of surface grinding machine equipment, and comprise three arc soft pawls identical with thin-wall bearing ferrule outer wall radian to be processed, three soft pawls of arc are evenly distributed on thin-wall bearing ferrule surrounding to be processed, so that thin-wall bearing ferrule to be processed is held tightly fixing, locking ball is provided with at three soft pawl medial surfaces of arc, when holding thin-wall bearing ferrule outer wall to be processed tightly to make three soft pawls of arc, the bottom of thin-wall bearing ferrule to be processed is in the plane of three locking balls formations, and this plane is parallel with the surface of magnechuck.

The utility model in use, as shown in Figure 3, first by three soft pawls of arc by 120 degree uniform put be put in surface grinding machine equipment magnechuck on, then thin-wall bearing ferrule to be processed is placed between the soft pawl of arc, by the arc surface of arc soft pawl, the external diameter of thin-wall bearing ferrule to be processed is clamped, the end face of thin-wall bearing ferrule to be processed as support by 3 locking balls, is strengthened electromagnetic attraction, guarantees that thin-wall bearing ferrule to be processed can not move all around.

From plan view, determine a plane at 3, by 3 locking balls as support, object is the stationarity in order to ensure end face, adding man-hour by external diameter as locating surface like this, ensure that thin-wall bearing ferrule adds not offset man-hour, when wheel grinding, the effect that the soft pawl of arc is subject to electromagnetic force F downward, ensure the soft pawl firm position of arc, and thin-wall bearing ferrule is only by the thrust of the soft pawl external diameter of arc, thin-wall bearing ring face is very faint by the effect of electromagnetic force, almost be in free state, during grinding by 3 locking balls as support, ensure that thin-wall bearing ring face is at same plane, the situation of elastic deformation can not be there is after this ensures that thering cross grinding, finally ensure that the technical requirement of flatness.

Beneficial effect: the utility model by arranging three locking balls on three soft pawls of arc, and three locking balls form a horizontal plane, then the bottom of thin-wall bearing ferrule to be processed is made to be on this horizontal plane, sidewall is held tightly by the soft pawl of arc simultaneously, like this when grinding, thin-wall bearing ferrule is only by the thrust of the soft pawl external diameter of arc, ring face is very faint by the effect of electromagnetic force, almost be in free state, and ensure that thin-wall bearing ring face is at same plane, the situation of elastic deformation can not be there is after this ensures that thering cross grinding, finally ensure that the technical requirement of flatness.

Accompanying drawing explanation

Fig. 1 is existing magnechuck grinding schematic diagram;

Fig. 2 is the top view of the utility model frock;

Fig. 3 is A-A place sectional view in Fig. 2;

Fig. 4 is that the utility model frock adds structural representation in man-hour;

Reference numeral: 1, thin-wall bearing ferrule to be processed, 2, locking ball, 3, the soft pawl of arc, 4, emery wheel, 5, magnechuck.

Detailed description of the invention

As shown in the figure, a kind of clamp fixture for processing thin-walled bearing ring, this clamp fixture is arranged on the magnechuck 5 of surface grinding machine equipment, and comprise three arc soft pawls 3 identical with thin-wall bearing ferrule 1 outer wall radian to be processed, three soft pawls of arc 3 are evenly distributed on thin-wall bearing ferrule 1 surrounding to be processed, so that thin-wall bearing ferrule 1 to be processed is held tightly fixing, locking ball 2 is provided with at three arc soft pawl 3 medial surfaces, when holding thin-wall bearing ferrule 1 outer wall to be processed tightly to make three soft pawls of arc 3, the bottom of thin-wall bearing ferrule 1 to be processed is in the plane of three locking balls 2 formations, and this plane is parallel with the surface of magnechuck 5.

In the utility model, described three locking balls 2 are positioned at the middle and lower part of three arc soft pawl 3 short transverses, have enough length hold thin-wall bearing ferrule 1 to be processed tightly to enable the middle and upper part of three soft pawls of arc 3.

In the utility model, three locking balls 2 rotate the middle and lower part arranging or be embedded in three soft pawls 3 of arc, as long as it is parallel with the surface of magnechuck 5 to ensure that the bottom of thin-wall bearing ferrule 1 to be processed supports rear formed plane by three locking balls 2.

Claims

1. the clamp fixture for processing thin-walled bearing ring, this clamp fixture is arranged on the magnechuck (5) of surface grinding machine equipment, and comprise three arc soft pawls (3) identical with thin-wall bearing ferrule to be processed (1) outer wall radian, three soft pawls of arc (3) are evenly distributed on thin-wall bearing ferrule to be processed (1) surrounding, so that thin-wall bearing ferrule to be processed (1) is held tightly fixing, it is characterized in that: be provided with locking ball (2) at three the soft pawl of arc (3) medial surfaces, when holding thin-wall bearing ferrule to be processed (1) outer wall tightly to make three soft pawls of arc (3), the bottom of thin-wall bearing ferrule to be processed (1) is in the plane that three locking balls (2) form, and this plane is parallel with the surface of magnechuck (5).

2. a kind of clamp fixture for processing thin-walled bearing ring according to claim 1, it is characterized in that: described three locking balls (2) are positioned at the middle and lower part of three the soft pawl of arc (3) short transverses, hold thin-wall bearing ferrule to be processed (1) tightly to make the middle and upper part of three soft pawls of arc (3).