CN209737395U

CN209737395U - clamp

Info

Publication number: CN209737395U
Application number: CN201822171938.6U
Authority: CN
Inventors: 陈胜利
Original assignee: Ooros Automotive Co Ltd
Current assignee: Qoros Automotive Co Ltd; Ooros Automotive Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-12-06
Anticipated expiration: 2028-12-24

Abstract

The utility model relates to an anchor clamps, anchor clamps are used for testing the axial rigidity of bearing. The clamp comprises a first fixing piece, a second fixing piece, a third fixing piece and a fourth fixing piece. The first fixing piece and the second fixing piece form a component for fixing the inner ring of the bearing, and the third fixing piece and the fourth fixing piece form a component for fixing the axial outer ring. The installation process of two subassemblies is simple, and the working process mutually noninterferes each other, therefore has better application prospect.

Description

Clamp

Technical Field

The utility model relates to an experimental test equipment especially relates to an anchor clamps, and it is used for testing bearing axial stiffness.

Background

In order to ensure that a vehicle leaving a factory meets various performance requirements, various tests are generally required. The detection of the axial stiffness of ball bearings of steering systems of motor vehicles, which is a driving safety concern, is the central priority of the detection tests. For a general bearing manufacturer, in an early design stage of a bearing, a production debugging stage of a new bearing, and a normal production stage of the bearing, various performances of the bearing, such as bearing rigidity, are detected, and thus a precise bearing detection system is generally configured. However, for the manufacturers of the entire cars, the bearing detection system is expensive and the frequency of using the bearing detection system is limited, so the bearing detection system is not generally selected to be purchased.

generally, a complete vehicle manufacturer will have a vehicle steering system laboratory. And equipment for detecting the overall performance of the steering system is arranged in the laboratory. However, this type of device cannot detect the performance of a component such as a bearing (e.g., a ball bearing).

In addition, the diameter of the ball bearing used in the vehicle steering system is generally within 30mm, so the bearing rigidity test of the bearing has higher requirements on the fixing mode and the size of the test fixture. In particular, the test tool is unable to create any interference and clearance with the ball bearing during testing of axial stiffness.

Therefore, how to design a simple clamp which can be applied to an axial stiffness test of a bearing with a smaller diameter becomes an urgent technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above prior art, the utility model provides an anchor clamps, its axial rigidity that is used for testing the bearing. The clamp comprises a first fixing piece, a second fixing piece, a third fixing piece and a fourth fixing piece. Wherein the first fixing member abuts against one axial end of the inner race of the bearing. The second fixing piece is abutted against the other axial end of the inner ring, penetrates through an inner hole of the bearing and is fixed with the first fixing piece into a whole; the third fixing member abuts against one axial end of the outer race of the bearing. And the fourth fixing piece is abutted against the other axial end of the outer ring, is abutted against the third fixing piece and is fixed with the third fixing piece into a whole.

According to the utility model discloses a preferred embodiment, first mounting with the one end that the second mounting is relative is equipped with first internal thread hole, second mounting one end is supported by means of location step and is leaned on the inner circle, the other end be equipped with first internal thread hole complex first external screw thread.

According to another preferred embodiment of the present invention, the fixture further includes a first screw, the first fixing member is provided with a first through hole along an axial direction thereof, the second fixing member is provided with a second internal threaded hole along an axial direction thereof, and the first screw can pass through the first through hole and be screwed into the second internal threaded hole, thereby fixing the first fixing member and the second fixing member as a whole.

According to another preferred embodiment of the present invention, the third fixing member is provided with a second external thread, and the fourth fixing member has a second-stage step groove provided at an end portion thereof in an axial direction thereof, wherein a first-stage step of the second-stage step groove is used for abutting against the outer ring, and is provided with a third internal thread hole engaged with the second external thread; and the second step of the second-step groove is used for accommodating one end part of the second fixing piece.

According to another preferred embodiment of the present invention, the third fixing member is provided with a second through hole along the axial direction, and the fourth fixing member has a second-stage step groove provided at an end portion along the axial direction thereof, wherein a first-stage step of the second-stage step groove is used for abutting against the outer ring and is provided with a through hole or a threaded hole adapted to the position and shape of the second through hole, and the second-stage step of the second-stage step groove is used for accommodating one end portion of the second fixing member; the third fixing member and the fourth fixing member are fixed integrally by means of bolts or screws.

According to another preferred embodiment of the present invention, the third fixing member is provided with a fourth internal threaded hole along the axial direction, the fourth fixing member has a secondary step groove provided at an end portion and a through hole adapted to the position and shape of the fourth internal threaded hole along the axial direction, wherein a first step of the secondary step groove is used to abut against the outer ring and is provided with a through hole or a threaded hole adapted to the position and shape of the second through hole, and a second step of the secondary step groove is used to accommodate one end portion of the second fixing member; the third fixing member and the fourth fixing member are fixed integrally by screws.

According to another preferred embodiment of the present invention, the first fixing member and the second fixing member are provided with a groove for holding.

According to the utility model discloses an anchor clamps, it is used for testing bearing axial stiffness. The clamp comprises a first fixing piece, a second fixing piece, a third fixing piece and a fourth fixing piece. The first fixing piece and the second fixing piece form a component for fixing the inner ring of the bearing, and the third fixing piece and the fourth fixing piece form a component for fixing the axial outer ring. The installation process of two subassemblies is simple, and the working process mutually noninterferes each other, therefore has better application prospect.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not to scale.

Fig. 1 is a perspective view of a jig according to a preferred embodiment of the present invention, showing the overall construction of the jig having been assembled to a bearing;

Fig. 2 is a sectional view taken along the axial center of fig. 1.

Detailed Description

The clamp of the present invention will be described in detail with reference to the accompanying drawings. What has been described herein is merely a preferred embodiment in accordance with the present invention, and those skilled in the art will appreciate on the basis of the preferred embodiment that other ways of implementing the present invention will likewise fall within the scope of the present invention.

In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", "horizontal", and the like, are used with reference to the orientation as illustrated in the drawings. The components of embodiments of the present invention can be positioned in a number of different orientations and the directional terminology is used for purposes of illustration and is in no way limiting.

According to the utility model discloses an anchor clamps, it includes first mounting 1, second mounting 2, third mounting 3 and fourth mounting 4. Wherein the first fixture 1 abuts against one axial end of the inner ring of the bearing 5. The second fixing member 2 abuts against the other axial end of the inner race, and the second fixing member 2 penetrates the inner bore of the bearing 5 and is fixed integrally with the first fixing member 1. The third fixing piece 3 abuts on one axial end of the outer ring of the bearing 5. The fourth fixed member 4 abuts on the other axial end of the outer race, and the fourth fixed member 4 also abuts on the third fixed member 3 and is fixed integrally with the third fixed member 3.

as for the structures of the first fixing member 1, the second fixing member 2 and the fixing manner therebetween, various manners may be adopted. In the example of fig. 1-2, the first fixing member 1 is provided with a first internally threaded hole at an end opposite to the second fixing member 2. One end of the second fixing part 2 is abutted against the inner ring by means of the positioning step, and the other end of the second fixing part is provided with a first external thread matched with the first internal thread hole. That is, one end of the second fixing element 2 abuts against the inner ring of the bearing 5 by means of the positioning step, and the other end passes through the inner hole of the bearing 5 and can be screwed into the first internal thread, thereby fixing the inner ring of the bearing 5.

In addition, the first fixing member 1 and the second fixing member 2 may be fixed to each other in the following manner. In particular, the clamp may further be provided with a first screw. The first fixing member 1 is provided with a first through hole along the axial direction thereof, the second fixing member 2 is provided with a second internal threaded hole along the axial direction thereof, and the first screw can pass through the first through hole and be screwed into the second internal threaded hole, thereby fixing the first fixing member 1 and the second fixing member 2 into a whole.

Various methods are also possible for the structure of the third fixing member 3 and the fourth fixing member 4 and the fixing method therebetween. In a first solution, shown in figures 1-2, the third fixed element 3 is provided with a second external thread and the fourth fixed element 4 has, in its axial direction, a secondary stepped groove provided at the end. The first step of second grade step groove is used for leaning on the outer lane, and is equipped with the third internal thread hole with second external thread fit. The second step of the step groove is to receive one end of the second fixing member 2. During the use, support third mounting 3 at the one end of bearing 5 outer lane earlier, place fourth mounting 4 at the other end of outer lane and twist gradually with third mounting 3 and close afterwards, at the in-process of screwing up, first order step groove is constantly close to the other end of bearing 5 outer lane to finally tightly support at this other end, fix the outer lane from this.

According to another preferred embodiment of the present invention, the third fixing member 3 and the fourth fixing member 4 can be fixed by the following second scheme. Specifically, the third fixing member 3 is provided with a second through hole in the axial direction, and the fourth fixing member 4 has a secondary stepped groove provided at an end portion in the axial direction thereof. The first step of the second step groove is used for abutting against the outer ring and is provided with a through hole or a threaded hole matched with the second through hole in position and shape, and the second step is used for accommodating one end part of the second fixing piece 2. The third fixing member 3 and the fourth fixing member 4 are fixed integrally by bolts or screws. Unlike the above-described embodiment, in the present embodiment, the third fixing member 3 and the fourth fixing member 4 are fastened together by bolts or screws.

According to another preferred embodiment of the present invention, the third fixing member 3 and the fourth fixing member 4 can be fixed by the following third scheme. Specifically, the third fixing member 3 is provided with a fourth internal threaded hole in the axial direction, and the fourth fixing member 4 has a secondary stepped groove provided at an end portion and a through hole adapted to the fourth internal threaded hole in position and shape in the axial direction. The first step of the second step groove is used for abutting against the outer ring and is provided with a through hole or a threaded hole matched with the second through hole in position and shape, and the second step is used for accommodating one end of the second fixing piece 2. The third fixing member 3 and the fourth fixing member 4 are fixed integrally by screws. In contrast to the second solution, in which a bolt or screw is inserted from the third fastening part 3 into the fourth fastening part 4, a screw is inserted from the fourth fastening part 4 into the third fastening part 3.

In order to facilitate the handling of the relevant fixture, in a preferred embodiment, grooves for holding may be provided in the first fixture 1 and the second fixture 2. When the device is used, the external clamping device structure fixes different fixing pieces into a whole by means of the grooves, and forces in different directions are applied to the first fixing piece 1 and the fourth fixing piece 4 along the axial direction, so that the axial rigidity of the bearing 5 is measured.

The utility model discloses an in the scheme, the fixed subassembly of outer lane mutually noninterfere each other that the fixed subassembly of inner circle that first mounting 1 and the combination of second mounting 2 formed and third mounting 3 and fourth mounting 4 are constituteed, easy and simple to handle, low in cost therefore possesses good application prospect.

the scope of protection of the present invention is limited only by the claims. Persons of ordinary skill in the art, having benefit of the teachings of the present invention, will readily appreciate that alternative structures to those disclosed as possible may be substituted for the alternative embodiments disclosed, and that the disclosed embodiments may be combined to create new embodiments, which likewise fall within the scope of the appended claims.

Claims

1. A fixture for testing axial stiffness of a bearing, the fixture comprising:

A first fixing member abutting against one axial end of an inner race of the bearing;

The second fixing piece is abutted against the other axial end of the inner ring, penetrates through an inner hole of the bearing and is fixed with the first fixing piece into a whole;

A third fixing member abutting against one axial end of the outer ring of the bearing; and

And the fourth fixing piece is abutted against the other axial end of the outer ring, is also abutted against the third fixing piece, and is fixed with the third fixing piece into a whole.

2. The jig of claim 1, wherein the first fixing member is provided with a first internally threaded hole at an end opposite to the second fixing member, the second fixing member is abutted against the inner ring at one end by means of a positioning step, and is provided with a first external thread at the other end to be engaged with the first internally threaded hole.

3. the jig according to claim 1, wherein the jig further comprises a first screw, the first fixing member is provided with a first through hole along an axial direction thereof, the second fixing member is provided with a second internally threaded hole along an axial direction thereof, and the first screw can be screwed into the second internally threaded hole through the first through hole, thereby fixing the first fixing member and the second fixing member integrally.

4. A clamp according to any one of claims 1 to 3, wherein the third fixing member is provided with a second external thread, and the fourth fixing member has a stepped secondary groove provided at an end portion in an axial direction thereof, wherein a first step of the stepped secondary groove is provided for abutting against the outer race and is provided with a third internal thread hole which is fitted with the second external thread, and the second step is provided for accommodating one end portion of the second fixing member; and the second step of the second-step groove is used for accommodating one end part of the second fixing piece.

5. The jig of any one of claims 1 to 3, wherein the third fixing member is provided with a second through hole in an axial direction, and the fourth fixing member has a secondary stepped groove provided at an end in an axial direction thereof, wherein a first step of the secondary stepped groove is provided for abutting against the outer ring and is provided with a through hole or a threaded hole in a position, a shape, or both of which are adapted to the second through hole, and the second step is provided for accommodating one end of the second fixing member; the third fixing member and the fourth fixing member are fixed integrally by means of bolts or screws.

6. The jig according to any one of claims 1 to 3, wherein the third fixing member is provided with a fourth internally threaded hole in the axial direction, the fourth fixing member has a secondary stepped groove provided at an end portion in the axial direction thereof, and a through hole adapted in position and shape to the fourth internally threaded hole, wherein a first step of the secondary stepped groove is provided for abutting against the outer race and is provided with a through hole or a threaded hole adapted in position and shape to the through hole, and a second step is provided for accommodating one end portion of the second fixing member; the third fixing member and the fourth fixing member are fixed integrally by screws.

7. The clamp of claim 1, wherein the first and second fixtures are provided with grooves for holding.