CN110834288B

CN110834288B - Auxiliary assembly tool for automobile spline and shaft

Info

Publication number: CN110834288B
Application number: CN201910740856.5A
Authority: CN
Inventors: 张吉; 侯杰; 费二威; 高尚
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2021-04-23
Anticipated expiration: 2039-08-12
Also published as: CN110834288A

Abstract

The invention relates to the technical field of automobile assembly and discloses an auxiliary assembly tool for an automobile spline and an automobile shaft. The assembly auxiliary fixtures of car spline and axle include clamping part, first spacing portion, handheld portion and the spacing portion of second: the clamping part is used for clamping the spline; the first limiting part is arranged on the clamping part and used for limiting the position of the clamping part relative to the spline; the handheld part is connected with the clamping part and used for opening the clamping part; the second limiting part is arranged on the handheld part and used for limiting the position of a shaft connected with the spline. The auxiliary assembly tool for assembling the automobile spline and the shaft improves the connection precision and the assembly speed of the shaft and the spline, and reduces the assembly difficulty and the labor intensity of workers; in addition, this auxiliary fixtures simple structure is small and exquisite, facilitates the use, can not occupy the assembly space of axle and spline.

Description

Auxiliary assembly tool for automobile spline and shaft

Technical Field

The invention relates to the technical field of automobile assembly, in particular to an auxiliary assembly tool for assembling an automobile spline and an automobile shaft.

Background

When the automobile is produced and assembled, the part of the automobile, which is connected with the spline, is difficult to assemble, particularly, the spline of the input shaft of the steering gear is a tooth-lacking type spline, when the spline of the input shaft of the steering gear is connected with the joint fork of the intermediate shaft of the steering gear, the connection position of the spline and the joint fork has uniqueness, and under the condition of small assembling space, the connection difficulty of the spline and the shaft is further increased, the operation of workers is difficult, the assembling time is long, the labor intensity of the workers is improved, and the assembling efficiency is reduced.

Disclosure of Invention

The invention aims to provide an auxiliary assembly tool for an automobile spline and a shaft, which improves the assembly efficiency of the spline and the shaft and reduces the labor intensity of workers.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an assembly auxiliary fixtures of car spline and axle, includes:

a clamping portion for clamping the spline;

the first limiting part is arranged on the clamping part and used for limiting the position of the clamping part relative to the spline;

the handheld part is connected with the clamping part and used for opening the clamping part;

and the second limiting part is arranged on the handheld part and used for limiting the position of the shaft connected with the spline.

Preferably, the clamping part comprises two clamping plates which are oppositely arranged, the opposite side surfaces of the two clamping plates are provided with arc-shaped surfaces, and the two clamping plates form a through hole for the spline to pass through in a closed state.

Preferably, the first limiting part comprises a limiting surface, the limiting surface is arranged on the inner side wall of the through hole, and the limiting surface corresponds to the notch of the spline.

Preferably, the first limiting part comprises spline teeth, the spline teeth are arranged on the arc-shaped surface of at least one clamping plate, and the spline teeth correspond to the teeth on the spline.

Preferably, the handheld part comprises a first handle and a second handle, one end of the first handle is connected with one end of one of the clamping plates, one end of the second handle is connected with one end of the other clamping plate, and the first handle is hinged with the second handle.

Preferably, the first handle and the second handle are connected through a connecting pin, a torsion spring is sleeved on the connecting pin, one end of the torsion spring is abutted to the first handle, and the other end of the torsion spring is abutted to the second handle.

Preferably, the second limiting part comprises a limiting block, and the limiting block is connected with one ends, close to the clamping part, of the first handle and the second handle through connecting pieces.

Preferably, the connecting piece includes the steel wire, the one end of steel wire with first handle is connected, the other end of steel wire with the second handle is connected, one side of stopper is equipped with the draw-in groove, the middle part joint of steel wire is in the draw-in groove.

Preferably, the first handle is provided with a first jack, one end of the steel wire is inserted into the first jack, the second handle is provided with a second jack, and the other end of the steel wire is inserted into the second jack.

Preferably, the steel wire includes horizontal segment and two sets of vertical sections and the oblique section that the symmetry set up, the one end of vertical section with first handle or the second handle is connected, the other end of vertical section with the one end of oblique section is connected perpendicularly, two the other end of oblique section all inclines to the inboard and respectively with the both ends of horizontal segment are connected, the horizontal segment joint in the draw-in groove.

The invention has the beneficial effects that: the auxiliary assembly tool for the automobile spline and the shaft provided by the invention clamps the spline through the clamping part, and the position of the clamping part relative to the spline is unchanged, so that the position of a second limiting part arranged on the handheld part is unchanged, the second limiting part is used for limiting the position of the shaft connected with the spline, the connection precision and the assembly speed of the shaft and the spline are improved, and the assembly difficulty and the labor intensity of workers are reduced; in addition, this auxiliary fixtures simple structure is small and exquisite, facilitates the use, can not occupy the assembly space of axle and spline.

Drawings

FIG. 1 is a schematic view of an automobile spline and shaft assembly auxiliary tool in the use process according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of an auxiliary tool for assembling an automobile spline and a shaft according to an embodiment of the invention;

FIG. 3 is an exploded view of the auxiliary tool for assembling the automobile spline and the shaft according to the embodiment of the invention;

FIG. 4 is a partial block diagram of a clamping portion according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a steel wire according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a clamping portion and a handle portion according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the limiting block according to the embodiment of the invention.

In the figure:

1. a clamping plate; 11. an arc-shaped surface; 12. a through hole;

21. a limiting surface; 22. spline teeth;

31. a first handle; 311. a first jack; 32. a second handle; 321. a second jack; 33. a connecting pin; 34. a torsion spring;

4. a limiting block; 41. a card slot;

5. a steel wire; 51. a horizontal segment; 52. a vertical section; 53. an oblique section;

6. a spline;

7. and (4) a joint fork.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the invention provides an auxiliary assembly tool for assembling a spline and a shaft of an automobile, which is mainly used for assembling a steering input shaft spline 6 and a steering intermediate shaft yoke 7, and can also be used for assembling other splines and shafts, and is not limited herein.

As shown in fig. 1 and fig. 2, the auxiliary assembly fixture for assembling an automobile spline and a shaft provided by the embodiment includes a clamping portion, a first limiting portion, a handheld portion and a second limiting portion. The clamping part is used for clamping the spline 6, the first limiting part is arranged on the clamping part and used for limiting the position of the clamping part relative to the spline 6, the handheld part is connected with the clamping part and used for opening the clamping part, and the second limiting part is arranged on the handheld part and used for limiting the position of a shaft connected with the spline 6.

The auxiliary assembly tool for assembling the automobile spline and the shaft provided by the embodiment clamps the spline 6 through the clamping part, the position of the clamping part relative to the spline 6 is unchanged, the position of a second limiting part arranged on the handheld part is ensured to be unchanged, the second limiting part is used for limiting the position of the shaft connected with the spline 6, the connecting precision and the assembling speed of the shaft and the spline 6 are improved, and the assembling difficulty and the labor intensity of workers are reduced; in addition, this auxiliary fixtures simple structure is small and exquisite, facilitates the use, can not occupy the assembly space of axle and spline 6.

In this embodiment, with reference to fig. 2 and 3, the clamping portion includes two clamping plates 1 disposed opposite to each other, the opposite sides of the two clamping plates 1 are both provided with arc-shaped surfaces 11, and the two clamping plates 1 form through holes 12 for the splines 6 to pass through in the closed state. Specifically, grip block 1 is the arc, and the lateral surface of grip block 1 also is the arcwall face promptly, when supplementary assembly part, can save this auxiliary fixtures's occupation space. When the two clamping plates 1 are in a closed state, one end face of one clamping plate 1 is attached to one end face of the other clamping plate 1, and the other end face of one clamping plate 1 is attached to the other end face of the other clamping plate 1.

The hand-held portion is used to open the two clamping plates 1 so that the two clamping plates 1 no longer clamp the splines 6. In this embodiment, the handheld portion comprises a first handle 31 and a second handle 32, one end of the first handle 31 is connected with one end of one of the clamping plates 1, one end of the second handle 32 is connected with one end of the other clamping plate 1, the first handle 31 is hinged with the second handle 32, and the hinged position is close to the connecting position of the first handle 31 and the second handle 32 with the clamping plates 1. This simple structure makes things convenient for the workman to operate, holds first handle 31 and second handle 32, and makes first handle 31 and second handle 32 move in opposite directions, can open two grip blocks 1.

In the present embodiment, with continued reference to fig. 2 and 3, the first handle 31 and the second handle 32 are connected by a connecting pin 33, a torsion spring 34 is sleeved on the connecting pin 33, one end of the torsion spring 34 abuts against the first handle 31, and the other end of the torsion spring 34 abuts against the second handle 32. After the first handle 31 and the second handle 32 are released by hand in the state that the two clamping plates 1 are opened, the two clamping plates 1 are automatically closed under the action of the torsion spring 34, and the through hole 12 for the spline 6 to pass through is formed. When the auxiliary tool is used for assisting in installing the spline 6 and the shaft, the spline 6 directly penetrates through the through hole 12 formed by the two clamping plates 1, and therefore the auxiliary tool is convenient to position and install on the spline 6.

Because the steering input shaft spline 6 of car is the scarce tooth type spline, for the convenience with this auxiliary fixtures accuracy install this spline 6 on, set up first spacing portion on the clamping part, first spacing portion is used for restricting the position of clamping part relative spline 6.

In this embodiment, as shown in fig. 4, the first position-limiting portion includes a position-limiting surface 21, the position-limiting surface 21 is disposed on the inner sidewall of the through hole 12, and the position-limiting surface 21 corresponds to the notch of the spline 6. Specifically, the limiting surface 21 is a plane, the limiting surface 21 is arranged on the arc-shaped surface 11 of the end portion of the clamping plate 1 far away from the first handle 31 or the second handle 32, when the two clamping plates 1 are closed, the limiting surfaces 21 on the two clamping plates 1 are spliced to form a plane, when the clamping portion is mounted on the spline 6, the plane is attached to the side surface of the notch of the spline 6, and the plane has the function of positioning the auxiliary tool on the spline 6.

In this embodiment, with continued reference to fig. 4, the first position-limiting portion further includes spline teeth 22, the spline teeth 22 are disposed on the arc-shaped surface 11 of the at least one clamping plate 1, and the spline teeth 22 correspond to the teeth on the spline 6. Set up spline tooth 22 on the arcwall face 11 of grip block 1, on the spline 6 was installed to the clamping part, its spline tooth 22 corresponded the meshing with the tooth on the spline 6, had played the effect of location clamping part promptly, can effectively prevent again that the relative spline 6 of clamping part from rotating, had ensured the position accuracy of the relative spline 6 of clamping part. Further, all be equipped with spline tooth 22 on two grip blocks 1, and grip block 1 only sets up spline tooth 22 on partial arcwall face 11, has both reduced grip block 1's the processing degree of difficulty, can realize the effect of location again.

After the clamping portion is positioned on the spline 6, the position of the second limiting portion is further defined, and then the yoke 7 of the steering intermediate shaft is mounted on the steering input shaft spline 6 under the limitation of the second limiting portion.

In this embodiment, the second limiting part includes a limiting block 4, and the limiting block 4 is connected to the ends of the first handle 31 and the second handle 32 close to the clamping part through a connecting member, that is, close to the hinge joint of the first handle 31 and the second handle 32. After the clamping portion is mounted on the spline 6, the stopper 4 is disposed close to the spline 6.

Specifically, referring to fig. 5 and 6, the connecting member includes a steel wire 5, the steel wire 5 includes a horizontal section 51, and two sets of vertical sections 52 and inclined sections 53 arranged to the cart, wherein one end of one vertical section 52 is connected to the first handle 31, and one end of the other vertical section 52 is connected to the second handle 32. The other ends of the two vertical sections 52 are respectively and vertically connected with one ends of the two inclined sections 53, and the other ends of the two inclined sections 53 are both inclined inwards and respectively connected with two ends of the horizontal section 51.

In order to facilitate connection of the steel wire 5 with the first handle 31 and the second handle 32, as shown in fig. 6, a first insertion hole 311 is formed in the upper surface of the first handle 31, a second insertion hole 321 is formed in the upper surface of the second handle 32, one of the vertical sections 52 of the steel wire 5 is inserted into the first insertion hole 311, the other vertical section 52 of the steel wire 5 is inserted into the second insertion hole 321, and the steel wire 5 is close to interference fit with the first insertion hole 311 and the second insertion hole 321, so that the steel wire 5 is not easy to fall off from the first handle 31 and the second handle 32.

After the two ends of the steel wire 5 are inserted into the first handle 31 and the second handle 32, the inclined section 53 and the horizontal section 51 of the steel wire 5 face to the side of the clamping part and are parallel to the surfaces of the first handle 31 and the second handle 32.

In order to be connected with the steel wire 5 in a matching manner, as shown in fig. 7, a clamping groove 41 is formed in one side of the limiting block 4, and the clamping groove 41 is clamped on the steel wire 5. In this embodiment, the slot 41 of the limiting block 4 is connected to the horizontal section 51 of the steel wire 5, and the slot 41 is in interference fit with the steel wire 5, so as to ensure the stability of the connection between the limiting block 4 and the steel wire 5. When installing stopper 4 on steel wire 5, the inclined section 53 of steel wire 5 has played certain elastic action, makes things convenient for stopper 4 and the horizontal segment 51 of steel wire 5 to be connected. The inclined section 53 and the horizontal section 51 of steel wire 5 set up towards clamping part one side slope, do not influence the clamping part and open and closed prerequisite under, make the stopper 4 of installing on steel wire 5 further be close to spline 6.

When using this auxiliary fixtures, mainly include following step: taking the auxiliary tool, and sleeving a clamping part of the auxiliary tool on the spline 6, wherein the position of the limiting block 4 is fixed; then, mounting a joint fork 7 of the steering intermediate shaft on a spline 6 of the steering input shaft, wherein a limiting block 4 on the auxiliary tool limits the mounting position of the steering intermediate shaft; and finally, manually loosening the auxiliary tool to separate the clamping part from the spline 6, removing the auxiliary tool, and further assembling the steering intermediate shaft and the steering input shaft in place, so that the spline 6 and the shaft are quickly installed, the working efficiency and the assembling precision are improved, and the labor intensity of workers is reduced.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an assembly auxiliary fixtures of car spline and axle which characterized in that includes:

a clamping portion for clamping the spline (6);

the first limiting part is arranged on the clamping part and used for limiting the position of the clamping part relative to the spline (6);

the second limiting part is arranged on the handheld part and used for limiting the position of a shaft connected with the spline (6);

the clamping part comprises two clamping plates (1) which are arranged oppositely, arc-shaped surfaces (11) are arranged on the opposite side surfaces of the two clamping plates (1), and through holes (12) for the splines (6) to pass through are formed in the two clamping plates (1) in a closed state;

the handheld part comprises a first handle (31) and a second handle (32), one end of the first handle (31) is connected with one end of one of the clamping plates (1), one end of the second handle (32) is connected with one end of the other clamping plate (1), and the first handle (31) is hinged with the second handle (32);

the second limiting part comprises a limiting block (4), and the limiting block (4) is connected with one ends, close to the clamping part, of the first handle (31) and the second handle (32) through connecting pieces;

the connecting piece includes steel wire (5), the one end of steel wire (5) with first handle (31) are connected, the other end of steel wire (5) with second handle (32) are connected, one side of stopper (4) is equipped with draw-in groove (41), the middle part joint of steel wire (5) is in draw-in groove (41).

2. The assembly auxiliary tool for the automobile spline and the shaft as claimed in claim 1, wherein the first limiting portion comprises a limiting surface (21), the limiting surface (21) is arranged on the inner side wall of the through hole (12), and the limiting surface (21) corresponds to the notch of the spline (6).

3. The assembly auxiliary fixture of automobile splines and shafts according to claim 1, characterized in that the first limiting portion comprises spline teeth (22), the spline teeth (22) are arranged on the arc-shaped surface (11) of at least one clamping plate (1), and the spline teeth (22) correspond to teeth on the splines (6).

4. The assembly auxiliary tool for the automobile spline and shaft is characterized in that the first handle (31) and the second handle (32) are connected through a connecting pin (33), a torsion spring (34) is sleeved on the connecting pin (33), one end of the torsion spring (34) is abutted to the first handle (31), and the other end of the torsion spring (34) is abutted to the second handle (32).

5. The assembly auxiliary tool for the automobile spline and the shaft according to claim 1, wherein a first insertion hole (311) is formed in the first handle (31), one end of the steel wire (5) is inserted into the first insertion hole (311), a second insertion hole (321) is formed in the second handle (32), and the other end of the steel wire (5) is inserted into the second insertion hole (321).

6. The assembly auxiliary tool for the automobile spline and the shaft is characterized in that the steel wire (5) comprises a horizontal section (51) and two groups of vertical sections (52) and inclined sections (53) which are symmetrically arranged, one end of each vertical section (52) is connected with the first handle (31) or the second handle (32), the other end of each vertical section (52) is vertically connected with one end of each inclined section (53), the other ends of the two inclined sections (53) are inclined inwards and are respectively connected with two ends of the horizontal section (51), and the horizontal section (51) is clamped in the clamping groove (41).