CN218488222U

CN218488222U - Assembling fixture for servo shell pin of automobile electric steering column

Info

Publication number: CN218488222U
Application number: CN202221964773.8U
Authority: CN
Inventors: 王国超; 沈业凯; 赵敏清; 宗跃琪
Original assignee: Bosch Huayu Steering Systems Co Ltd
Current assignee: Bosch Huayu Steering Systems Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-02-17
Anticipated expiration: 2032-07-28

Abstract

The utility model belongs to the technical field of the mechanical skill and specifically relates to an assembly jig of automobile electric steering column's servo housing pin. The utility model provides an assembly jig of servo housing pin of auto electric steering column which characterized in that: the assembling fixture comprises a fixture main seat, a press-mounting supporting seat, a servo shell seat and quick clamps, wherein one end of the press-mounting supporting seat is arranged on the left side and the right side above one side of the fixture main seat respectively; the assembly fixture further comprises a primary pressure head and a secondary pressure head. Compared with the prior art, the assembling requirement of the servo shell pin of the automobile electric steering column can be met, the assembling precision is high, the quality is good, the universality is strong, the type changing is convenient, and the assembling efficiency of the servo shell pin is improved.

Description

Assembling clamp for servo shell pin of automobile electric steering column

Technical Field

The utility model belongs to the technical field of the mechanical skill and specifically relates to an assembly jig of auto electric steering column's servo housing pin.

Background

The spring bush pin type worm pressing mechanism is a novel mechanism, and has high requirements on assembly of a pin in a servo shell in the trial production process of a sample. The end face of the pin needs to be abutted against one end of the worm, and the quality of the assembling position quality of the pin directly influences the fit tightness of the worm and gear mechanism of the turbine, so that the rotating torque of the turbine is influenced. When the pin is pressed and installed, certain requirements are also placed on the stress surface of the servo shell. Meanwhile, the pin and the servo shell are in interference fit, the pin can only be pressed into the servo shell in a one-way mode, and reworking cannot be carried out after press mounting. The servo shell pin pressing sub-process generally needs special equipment and tools to meet the high requirement, but for small-batch sample assembly trial-manufacturing, the manufacturing period of the special equipment is long and the cost is high.

Disclosure of Invention

The utility model discloses an overcome prior art not enough, provide an assembly jig of automobile electric steering column's servo housing pin, can satisfy the assembly requirement of automobile electric steering column's servo housing pin, the assembly precision is high, and is of high quality, and the commonality is strong, and it is convenient to remodel, has improved the assembly efficiency of servo housing pin.

In order to realize above-mentioned purpose, design the assembly jig of servo housing pin of automobile electric steering column, its characterized in that: the assembling fixture comprises a fixture main seat, a press-fitting supporting seat, a servo shell seat and quick clamps, wherein one end of the press-fitting supporting seat is arranged on the left side and the right side above one side of the fixture main seat respectively; the assembly fixture further comprises a primary pressure head and a secondary pressure head.

The assembly fixture further comprises a plug gauge.

The anchor clamps main tributary seat be by 3 panel combinations form and be the structure of U type to the front side panel height of anchor clamps main tributary seat is less than the rear side panel of anchor clamps main tributary seat, and the top that is located the front side panel of anchor clamps main tributary seat is equipped with the recess.

The quick clamp at least be equipped with 3 to 3 quick clamps equipartitions are in servo housing seat's outer fringe position.

The press-fitting support seat is of a rectangular module structure, one end of the press-fitting support seat is flush with the front end face of the front side panel of the clamp main seat, and the other end of the press-fitting support seat is located between the front side panel of the clamp main seat and the rear side panel of the clamp main seat.

One end of the press-fitting support rod is positioned outside the press-fitting support seats, and the other end of the press-fitting support rod penetrates through the press-fitting support seats and is positioned between the press-fitting support seats on the left side and the right side.

The servo shell seat is of a circular ring structure and is connected with the rear side panel of the clamp main seat through bolts.

Compared with the prior art, the utility model, a assembly jig of the servo casing pin of auto electric steering column is provided, can satisfy the assembly requirement of the servo casing pin of auto electric steering column, the assembly precision is high, of high quality, and the commonality is strong, and it is convenient to remodel, has improved the assembly efficiency of servo casing pin.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of a plug gauge structure.

Fig. 3 and fig. 4 are schematic diagrams of the structure-mounted servo unit of the present invention.

Fig. 5 and fig. 6 are schematic diagrams illustrating that the servo housing is fixed by the press-fitting support rod according to the structure of the present invention.

Fig. 7 and 8 are schematic views of a primary pin pressing process.

Fig. 9 and 10 are schematic views of a secondary pin pressing process.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the assembly fixture comprises a fixture main seat, a press-fitting support seat, a servo housing seat and a quick clamp, wherein one end of the press-fitting support seat 6 is arranged on each of the left side and the right side above one side of the fixture main seat 8, the other end of the press-fitting support seat 6 is connected with a press-fitting support rod 7, the other side of the fixture main seat 8 is connected with the servo housing seat 4, a plurality of servo housing positioning pins 5 are arranged on the servo housing seat 4, and a plurality of quick clamps 3 are arranged on the fixture main seat 8 outside the servo housing seat 4; the assembly fixture further comprises a primary pressure head 2 and a secondary pressure head 1.

The assembly fixture also includes a plug gauge 9.

The anchor clamps main stand 8 is for being the structure that is the U type by 3 panel combinations formation to the front side panel height of anchor clamps main stand 8 is less than the back side panel of anchor clamps main stand 8, and is located the top of the front side panel of anchor clamps main stand 8 and is equipped with the recess.

The fast clamp 3 is equipped with 3 at least to 3 fast clamp 3 equipartitions are in servo housing seat 4's outer fringe position.

The press-fitting support seat 6 is of a rectangular module structure, one end of the press-fitting support seat 6 is flush with the front end face of the front side panel of the clamp main seat 8, and the other end of the press-fitting support seat 6 is located between the front side panel of the clamp main seat 8 and the rear side panel of the clamp main seat 8.

One end of the press-fitting support rod 7 is positioned outside the press-fitting support seats 6, and the other end of the press-fitting support rod 7 penetrates through the press-fitting support seats 6 and is positioned between the press-fitting support seats 6 on the left side and the right side.

The servo housing seat 4 is of a circular ring structure, and the servo housing seat 4 is connected with the rear side panel of the clamp main seat 8 through bolts.

The assembly of the servo housing pressure pin requires that the pin be at a distance of 0 + -0.04 from the worm bushing, nominally in a state of just-in-touch. Because the servo shell, the pin and the worm bushing have certain machining size errors, the assembling requirements of the pin are difficult to achieve through fixed technological parameters and a tool clamp, and the assembling of each piece needs to be carried out after real-time position monitoring.

As shown in fig. 1, the clamp is in use in an upright position.

As shown in fig. 3 and 4, the positioning hole on the servo housing is aligned with the servo housing positioning pin 5 on the servo housing seat 4 of the assembly jig, the servo housing is placed in the assembly jig, and is clamped by the quick clamp 3.

As shown in fig. 5 and 6, the press-fitting support rod 7 is pushed into the servo housing, and the press-fitting support rod 7 is in contact with the force-bearing surface of the servo housing.

As shown in fig. 7 and fig. 8, the pin is placed in the servo shell, and is pressed by the primary press head 2 until the end face of the primary press head 2 is flush with the face of the servo shell, and a certain gap is formed between the pin and the worm bush. And the distance value between the pin and the worm bush is measured by a plug gauge 9.

As shown in fig. 9 and 10, the measured distance values are set on the press and the pin is pressed into place with the secondary ram 1, where the pin-to-bushing gap is zero.

Through changing the pressure equipment supporting seat, bracing piece, servo casing seat, can make the utility model is suitable for the product of different grade type, has improved the commonality of this invention, reduces the product trial-manufacturing cost.

Claims

1. The utility model provides an assembly jig of servo housing pin of car electric steering column which characterized in that: the assembling fixture comprises a fixture main seat, a press-fitting supporting seat, a servo shell seat and quick clamps, wherein one end of the press-fitting supporting seat (6) is arranged on the left side and the right side above one side of the fixture main seat (8), the other end of the press-fitting supporting seat (6) is connected with a press-fitting supporting rod (7), the other side of the fixture main seat (8) is connected with the servo shell seat (4), a plurality of servo shell positioning pins (5) are arranged on the servo shell seat (4), and a plurality of quick clamps (3) are arranged on the fixture main seat (8) on the outer side of the servo shell seat (4); the assembly fixture further comprises a primary pressure head (2) and a secondary pressure head (1).

2. The assembling jig for the servo housing pin of the electric steering column for the automobile according to claim 1, wherein: the assembly fixture further comprises a plug gauge (9).

3. The assembling jig for the servo housing pin of the automotive electric steering column according to claim 1, characterized in that: the fixture main seat (8) is in a U-shaped structure formed by combining 3 panels, the height of the front side panel of the fixture main seat (8) is lower than that of the rear side panel of the fixture main seat (8), and a groove is formed in the top of the front side panel of the fixture main seat (8).

4. The assembling jig for the servo housing pin of the automotive electric steering column according to claim 1, characterized in that: the number of the quick clamps (3) is at least 3, and the 3 quick clamps (3) are uniformly distributed at the outer edge of the servo shell seat (4).

5. The assembling jig for the servo housing pin of the automotive electric steering column according to claim 1, characterized in that: the press-fitting support seat (6) is of a rectangular module structure, one end of the press-fitting support seat (6) is flush with the front end face of the front side panel of the clamp main seat (8), and the other end of the press-fitting support seat (6) is located between the front side panel of the clamp main seat (8) and the rear side panel of the clamp main seat (8).

6. The assembling jig for the servo housing pin of the automotive electric steering column according to claim 1, characterized in that: one end of the press-fitting support rod (7) is positioned at the outer side of the press-fitting support seat (6), and the other end of the press-fitting support rod (7) penetrates through the press-fitting support seat (6) and is positioned between the press-fitting support seats (6) at the left side and the right side.

7. The assembling jig for the servo housing pin of the automotive electric steering column according to claim 1, characterized in that: the servo shell seat (4) is of a circular ring structure, and the servo shell seat (4) is connected with the rear side panel of the clamp main seat (8) through bolts.