CN216178217U

CN216178217U - Automatic alignment assembly fixture for shaft disc

Info

Publication number: CN216178217U
Application number: CN202122379658.6U
Authority: CN
Inventors: 林阳; 沈楠; 文鹏; 王炳辉
Original assignee: SICHUAN YIBIN PUSH AUTO PARTS CO Ltd
Current assignee: SICHUAN YIBIN PUSH AUTO PARTS CO Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-05
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses an automatic shaft disc aligning and assembling tool, in particular to an automatic crankshaft assembling gear aligning tool, and relates to the field of assembling tools. The utility model adopts a spring alignment mechanism to solve the problem that the position degree can not be ensured when the shaft and the disc are assembled in the production process. By adopting the shaft disc assembled by the utility model, the shaft and the disc can be automatically aligned, and the requirement of the position degree of parts is ensured.

Description

Automatic alignment assembly fixture for shaft disc

Technical Field

The utility model relates to the field of assembly tools, in particular to an assembly tool for a shaft disc, which is suitable for assembling a gear disc, a flange disc, a bearing and the like on a shaft.

Background

During the mechanical manufacturing process, the disc-like component is usually assembled with the shaft to achieve certain functions, and the requirement for assembling the shaft with the disc is usually high, and it is necessary to achieve an accurate size and/or an accurate position degree to ensure the achievement of certain functions. Particularly, after the automobile technology is upgraded to the national six standards, the requirements of parts of the engine are more and more simplified. The same applies to a crankshaft, which is one of important engine components, and more functional structures are integrated on the crankshaft for weight reduction and efficiency increase. Such as: the crankshaft sector plate is provided with a gear ring driving balance shaft and the like.

In the production and assembly processes, because the shaft and the disc parts are positioned without end face contact, the horizontal precision of the shaft cannot be ensured in each machining state, and the quality problem of over-tolerance caused by large gear parallelism fluctuation can occur.

The parallelism of disc parts cannot be effectively guaranteed by common tools.

The defects and shortcomings of the prior art are as follows:

1. a conventional clamp: the axial positioning of the disc parts is that the end surfaces are in hard contact positioning with the end surface of the machine tool headstock, the shaft is two-top clamping, the center is not rigid enough and deformed due to long extending distance of the center and heavy shaft, and the horizontal precision cannot be guaranteed, so that the parallelism quality and the operation risk of the gear are high;

2. the machine tool structure is redesigned, and the machine tool is replaced, so that the cost is high;

3. after processing, qualified parts are selected, the rejection rate is high, the output is unstable, and materials are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic shaft disc aligning and assembling tool, in particular to a crankshaft assembling toothed ring assembling tool, which aims to solve the problems that disc parts cannot be perfectly assembled with a shaft by common tools, the assembling position or size cannot meet the requirements easily, and the parts are scrapped.

In order to realize the purpose of the utility model, the technical scheme is as follows:

the utility model provides an automatic alignment assembly fixture of reel, includes base and chuck, its characterized in that sets up the spring between base and the chuck.

Further, the spring is a compression spring.

Further, the springs are symmetrically distributed at the center of the contact plane of the base and the chuck.

Furthermore, the number of the springs is more than three. Four, five, six, etc., so that the structure is more stable.

Further, a backing plate is arranged between the chuck and the spring. After the chuck is used for a period of time, the spring and the connecting part are easy to deform, only the base plate is replaced, the whole chuck is not required to be replaced, and the cost is saved.

Furthermore, the shaft shoulder positioning surface of the chuck is arranged on the shaft shoulder positioning boss, and the shaft shoulder positioning boss is detachably connected with the chuck.

Furthermore, the disc positioning spigot of the chuck is a disc positioning block, and the disc positioning block is detachably connected with the chuck.

The beneficial effects of the utility model are as follows:

the spring is additionally arranged between the base and the chuck, the chuck can be adjusted according to the position of the shaft under the action of the spring, automatic alignment is realized, and the parallelism requirement of assembling the disc and the shaft is ensured;

the utility model has simple structure, easy processing, no need of improving the machine tool, convenient operation, low technical requirement on workers and improved assembly efficiency;

and thirdly, the easily-damaged parts are detachably connected, so that individual parts can be conveniently replaced after being worn and deformed, and the cost is saved.

Drawings

FIG. 1: the cross-sectional view of the utility model;

FIG. 2: a three-dimensional schematic of the utility model;

reference numbers and corresponding part names in the drawings:

the device comprises a base, a spring, a backing plate, a chuck, a disc part positioning block and a shaft shoulder positioning boss, wherein the base is 1, the spring is 2, the backing plate is 3, the chuck is 4, the disc part positioning block is 5, and the shaft shoulder positioning boss is 6.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Fig. 1 and 2 show an automatic shaft disc aligning and assembling tool, in particular to an automatic crankshaft assembling toothed ring aligning and assembling tool, which comprises a base 1 and a chuck 4, wherein springs 2 are arranged between the base 1 and the chuck 4, a base plate 3 is detachably connected to the contact surface of the springs 2 and the chuck, the springs 2 are compression springs, the number of the springs is four, and the springs are uniformly distributed on the contact surface of the base 1 and the chuck 4 in the circumferential direction; the shaft shoulder positioning surface of the chuck 4 is arranged on the shaft shoulder positioning boss 6, and the shaft shoulder positioning boss 6 is detachably connected with the chuck 4; the disc positioning spigot of the chuck 4 is a disc positioning block 5, and the disc positioning block 5 is detachably connected with the chuck 4.

The dish that needs the assembly is placed on anchor clamps, fixes a position at dish locating piece 5, and the axle adopts two clamping, and the top of one end passes base 1 and chuck 4 center and lets the hole, and during the assembly, if axle horizontal position takes place to squint, under the effect of spring, chuck 1 position automatic alignment, the locating surface and the contact of shaft shoulder terminal surface of shaft shoulder location boss 6, the dish that places on axle and the frock is perpendicular all the time, has guaranteed the depth of parallelism of dish and shaft shoulder terminal surface.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automatic alignment assembly fixture of reel, includes base (1) and chuck (4), its characterized in that sets up spring (2) between base (1) and chuck (4).

2. The automatic shaft disc aligning and assembling tool according to claim 1, wherein the spring (2) is a compression spring.

3. The automatic shaft disc aligning and assembling tool according to claim 1, wherein the springs (2) are distributed in a central symmetry manner on a contact plane of the base (1) and the chuck (4).

4. The automatic shaft disc aligning and assembling tool according to claim 3, wherein the number of the springs (2) is more than three.

5. The automatic shaft disc aligning and assembling tool according to claim 1, wherein a base plate (3) is arranged between the chuck (4) and the spring (2).

6. The automatic shaft disc aligning and assembling tool according to claim 1, wherein a shaft shoulder positioning surface of the chuck (4) is arranged on the shaft shoulder positioning boss (6), and the shaft shoulder positioning boss (6) is detachably connected with the chuck (4).

7. The automatic shaft disc aligning and assembling tool according to any one of claims 1 to 6, wherein the disc positioning spigot of the chuck (4) is a disc positioning block (5), and the disc positioning block (5) is detachably connected with the chuck (4).