CN214533939U

CN214533939U - Tolerance adjusting part capable of automatically compensating spacing

Info

Publication number: CN214533939U
Application number: CN202023092446.1U
Authority: CN
Inventors: 周唯乐; 安名琮
Original assignee: Borhoff China Fastener Co ltd
Current assignee: Borhoff China Fastener Co ltd; Bollhoff Wuxi Fastenings Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-10-29
Anticipated expiration: 2030-12-21

Abstract

The utility model provides a tolerance adjusting part for automatically compensating spacing, which comprises a fastening unit, a friction unit and a bolt, wherein the friction unit is arranged in the fastening unit through threads; the fastening unit comprises a clamping groove end fixed on the second structural member, a sleeve connected with the friction unit and a tail end of the connecting bolt; the friction unit comprises a flange arranged opposite to the first structural member, an adjusting pipe in spiral connection with the sleeve, and a clamping end arranged at the bottom of the adjusting pipe; a bolt is inserted into the holes of the fastening unit and the friction unit through a washer from the top of the first structural member. The utility model discloses simple structure, convenient operation utilizes relative screw thread to play the effect in clearance between the compensation structure.

Description

Tolerance adjusting part capable of automatically compensating spacing

Technical Field

The utility model relates to a regulating part field especially relates to an automatic tolerance regulating part of compensation interval.

Background

Tolerance gaps exist between parts during actual installation, accumulated tolerance exists in the assembling process, the product is stressed and deformed due to redundant shape design, and under the condition that no tolerance adjusting part exists, the product is stressed and expanded in the fastening process, the product is deformed, the quality standard cannot be met, and a part which is inserted between the parts and can be used for adjustment is lacked.

Published chinese utility model patent, application No. CN201821528816.1, patent name: nut component and contain tolerance regulator of this subassembly, application date: 2018-09-19. the utility model relates to a nut component and a tolerance regulator comprising the same, wherein, a first nut of the nut component is provided with a plurality of grooves on the outer wall of the first nut along the circumferential direction; the first nut is sleeved with a clamping ring, a plurality of bulges are arranged on the inner wall of the clamping ring along the circumferential direction, and the bulges are arranged corresponding to the grooves on the outer wall of the nut and are suitable for being respectively inserted into the grooves; the clamping ring is provided with a movement limiting mechanism for mounting the clamping ring on a mounting object; and a rotation prevention mechanism is also arranged between the first nut and the clamping ring and used for preventing the first nut and the clamping ring from rotating relatively. This application is provided with the recess on the outer wall of first nut, and is corresponding be provided with the arch on the inner wall of snap ring, work as the snap ring cover is established when the nut is outer, protruding the inserting in the recess, can effectively prevent breaking away from of snap ring and first nut.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a tolerance adjusting part capable of automatically compensating the spacing, which comprises a fastening unit 1, a friction unit 2 and a bolt 4, wherein the friction unit 2 is arranged in the fastening unit 1 through a thread;

the fastening unit 1 comprises a clamping groove end 11 fixed on the second structural member 3, a sleeve 12 connected with the friction unit 2 and a tail end 13 of the connecting bolt 4;

the friction unit 2 comprises a flange 21 arranged opposite to the first structural member 5, an adjusting pipe 22 in threaded connection with the sleeve 12, and a clamping end 23 arranged at the bottom of the adjusting pipe 22;

the bolts 4 are inserted into the corresponding holes of the fastening unit 1 and the friction unit 2 through the washers 6 from the top of the first structural member 5.

Preferably, the outer wall of the adjusting pipe 22 is provided with a left-handed external thread corresponding to the left-handed internal thread on the inner wall of the sleeve 12;

the outer wall of the bolt 4 adopts right-handed external threads which correspond to the right-handed internal threads on the inner wall of the tail end 13.

Preferably, a washer 6 is further provided between the first structural member 5 and the bolt 4.

Preferably, the inner wall of the friction unit 2 is a smooth through hole 24.

Preferably, the clamping end 23 is composed of a plurality of longitudinal elastic members equally spaced.

Preferably, the inner walls of the plurality of longitudinal elastic members are further provided with protrusions.

Preferably, the inner diameter of the bolt 4 not entering between the longitudinal elastic members is smaller than the inner diameter of the through hole 24.

The utility model has the advantages that: simple structure, convenient operation utilizes relative screw thread to play the effect in clearance between the compensation structure, and at the bolt screw in-process, the clearance between acceptor and the assembly part obtains compensating, and the pretightning force of screw thread will continuously guarantee clearance compensation's validity.

Drawings

FIG. 1 is a structural diagram of a friction unit according to the present invention;

FIG. 2 is a view of the fastening unit according to the present invention;

FIG. 3 is a block diagram of the present invention;

FIG. 4 is a diagram illustrating a state of tolerance compensation according to the present invention;

in the figure, the position of the upper end of the main shaft,

1. a fastening unit 11, a clamping groove end 12, a sleeve 13 and a tail end;

2. the friction unit 21, the flange 22, the adjusting pipe 23, the clamping end 24 and the through hole;

3. a second structural member; 4. a bolt; 5. a first structural member; 6. a gasket.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.

As shown in fig. 1-4, the present invention comprises: the bolt comprises a fastening unit 1, a friction unit 2 and a bolt 4, wherein the friction unit 2 is arranged in the fastening unit 1 through threads;

In this embodiment, it is preferable that the outer wall of the adjusting tube 22 is provided with a left-handed external thread corresponding to the left-handed internal thread on the inner wall of the sleeve 12;

In use, the first and second

structural members

5 and 3 are connected with the fastening unit 1 and the friction unit 2 by the bolts 4 due to a slight gap between the first and second

structural members

5 and 3;

because the bottom of the friction unit 2 is elastically clamped with the bolt 4 through the clamping end 23, when the bolt 4 rotates downwards, the external thread of the bolt 4 is consistent with the thread of the inner wall of the tail end 13 of the fastening unit 1, and the external thread of the friction unit 2 is consistent with the thread of the inner wall of the sleeve 12 of the fastening unit 1, because the thread directions of the two are opposite, the friction unit 2 gradually rises along with the downward rotation of the bolt 4 until contacting with the inner top wall of the first structural member 5 to play a role in compensating the distance between the first structural member 5 and the second structural member 3, and then the pretightening force of the thread can continuously ensure the effectiveness of clearance compensation.

In this embodiment, a washer 6 is preferably further provided between the first structural member 5 and the bolt 4.

With the above configuration, the washer 6 improves the fastening ability between the first structural member 5 and the head of the bolt 4, thereby preventing loosening.

In the present embodiment, the inner wall of the friction unit 2 is preferably a smooth through hole 24.

In the present embodiment, the clamping end 23 is preferably formed by a plurality of longitudinal elastic elements which are equally spaced.

In this embodiment, it is preferable that the inner walls of the plurality of longitudinal elastic members are further provided with protrusions.

Set up above-mentioned structure, after bolt 4 inserts friction unit 2 through glossy through-hole, get into a plurality of vertical elastomeric element, can play certain friction limiting displacement, prevent to adjust the mistake.

In the present embodiment, it is preferable that the inner diameter of the bolt 4 not entering between the plurality of longitudinal elastic members is smaller than the inner diameter of the through hole 24.

By adopting the structure, the clamping effect on the bolt is achieved by utilizing the smaller inner diameter.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. The tolerance adjusting piece capable of automatically compensating the distance is characterized by comprising a fastening unit (1), a friction unit (2) and a bolt (4), wherein the friction unit (2) is arranged in the fastening unit (1) through threads;

the fastening unit (1) comprises a clamping groove end (11) fixed on the second structural member (3), a sleeve (12) connected with the friction unit (2) and a tail end (13) of the connecting bolt (4);

the friction unit (2) comprises a flange (21) arranged opposite to the first structural member (5), an adjusting pipe (22) in spiral connection with the sleeve (12), and a clamping end (23) arranged at the bottom of the adjusting pipe (22);

the bolt (4) is inserted into corresponding holes of the fastening unit (1) and the friction unit (2) from the top of the first structural member (5) through a washer (6).

2. The self-compensating spacing tolerance adjuster of claim 1, wherein: the outer wall of the adjusting pipe (22) is provided with a left-hand external thread which corresponds to a left-hand internal thread on the inner wall of the sleeve (12);

the outer wall of the bolt (4) adopts right-handed external threads which correspond to the right-handed internal threads on the inner wall of the tail end (13).

3. The self-compensating spacing tolerance adjuster of claim 2, wherein: and a washer (6) is arranged between the first structural member (5) and the bolt (4).

4. The self-compensating spacing tolerance adjuster of claim 3, wherein: the inner wall of the friction unit (2) is a smooth through hole (24).

5. The self-compensating spacing tolerance adjuster of claim 4, wherein: the clamping end (23) is formed by a plurality of longitudinal elastic components at equal intervals.

6. The self-compensating spacing tolerance adjuster of claim 5, wherein: the inner walls of the longitudinal elastic parts are also provided with bulges.

7. The self-compensating spacing tolerance adjuster of claim 6, wherein: the inner diameter of the bolt (4) which does not enter between the plurality of longitudinal elastic parts is smaller than the inner diameter of the through hole (24).