CN219189990U

CN219189990U - Press fitting fixture for gear shaft of gearbox

Info

Publication number: CN219189990U
Application number: CN202223380379.2U
Authority: CN
Inventors: 黄日梅
Original assignee: Taizhou Bituo Auto Parts Co ltd
Current assignee: Taizhou Bituo Auto Parts Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-16
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a press-fitting clamp for a gearbox gear shaft, and belongs to the technical field of assembly of gearbox gear shafts. The press-fitting fixture for the gear shaft of the gearbox comprises a base, wherein a clamping mechanism for clamping the gear shaft is arranged on the base, and a supporting mechanism for supporting the gear shaft is arranged on the clamping mechanism; the clamping mechanism comprises a clamping part, a triggering part and a limiting part; the supporting mechanism comprises three supporting parts, and the three supporting parts are circumferentially and equidistantly arranged on the clamping mechanism. The clamping device can realize clamping work of various gear shafts with different sizes, ensures the stability of the gear shafts in the press-fitting process, and avoids the gear shafts from shifting due to external vibration during press-fitting, thereby affecting the press-fitting effect or causing abrasion of the gear shafts.

Description

Press fitting fixture for gear shaft of gearbox

Technical Field

The utility model belongs to the technical field of gearbox gear shaft assembly equipment, and particularly relates to a press-fitting clamp for a gearbox gear shaft.

Background

When the automobile gearbox is split-packed in a shafting way, the gear shafts are required to be subjected to multiparty limiting so as to carry out press fitting of shaft end bearings and screwing work of bolts. When the existing gear shaft positioning device is used, the following two problems mainly exist:

1. the existing positioning device can only be suitable for gear shafts with single size, and has a small application range;

2. the mode of positioning through the clamping gear is easy to damage the dimensional accuracy of the gear, so that the gear shaft is scrapped and cannot be used.

The Chinese patent with the publication number of CN214081122U discloses a novel gearbox gear shaft assembling and positioning device, which comprises a mounting bottom plate, wherein a limiting plate is arranged on the mounting bottom plate, one side of the limiting plate is fixedly connected with a fixed plate, the fixed plate is fixedly arranged on the mounting bottom plate, a supporting block is fixedly welded on the side wall of the limiting plate, a movable block is hinged on the supporting block, one side of the movable block is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a handle, anti-skid patterns are arranged on the handle, one end of the movable block is hinged with a transmission rod, a limiting block is fixedly connected on the side wall of the transmission rod, a limiting groove is formed in the limiting plate, the limiting block is propped against the inner wall of the limiting groove, a limiting device is fixedly arranged on the limiting groove, and one end of the transmission rod is hinged with an L-shaped rod; compared with the prior art, the clamping block can be adjusted in position by rotating the threaded rod, so that the anti-slip pad can be suitable for gear shafts with various sizes, has good applicability, and can prevent the clamping force from being too large to cause indentation on the gear shaft, thereby enabling the gear shaft to be scrapped.

Said utility model solves the problem of easy damage to gear accuracy by clamping gear shaft body by means of small application range of existent positioning device, but adopts point-point contact mode between gear shaft and clamping device to make the stability of gear shaft clamped on the positioning device deviate, and in the press-mounting process the deviation of gear shaft is easy to produce, and can affect press-mounting effect or can make the gear shaft and clamping device produce abrasion.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the press-fitting fixture for the gearbox gear shaft, which can realize the clamping work of the gear shafts with different sizes, ensure the stability of the gear shafts in the press-fitting process, and avoid the gear shafts from deviating due to external vibration during press-fitting, influencing the press-fitting effect or causing the abrasion of the gear shafts.

The press-fitting fixture for the gear shaft of the gearbox comprises a base, wherein a clamping mechanism for clamping the gear shaft is arranged on the base, and a supporting mechanism for supporting the gear shaft is arranged on the clamping mechanism; the clamping mechanism comprises a clamping part, a triggering part and a limiting part; the supporting mechanism comprises three supporting parts, and the three supporting parts are circumferentially and equidistantly arranged on the clamping mechanism.

Preferably, the clamping part of the clamping mechanism comprises a round table arranged on the base, the round table is provided with a supporting part, the upper end face of the round table is provided with three sliding grooves, the three sliding grooves are arranged at equal intervals along the circumferential direction of the round table, each sliding groove is internally and slidably connected with a stepped sliding block, the round table is internally and further provided with a triggering part for driving the three sliding blocks to operate, and the base is provided with a limiting part for limiting the triggering part.

Preferably, each sliding block is provided with an extending plate towards one side of the center point of the circular truncated cone, the extending plate is in an L shape, the extending plate and the corresponding sliding block are integrally formed, and each extending plate is detachably provided with an elastic pad.

Preferably, the triggering part comprises a rotating shaft arranged on the base, a gear is sleeved on the rotating shaft, a turntable matched with the sliding block is arranged above the gear and positioned on the rotating shaft, a rack meshed with the gear is arranged below the turntable in the round table, the rack penetrates through the round table and extends to the outside of the round table, a plurality of limiting holes are formed in the end face of one side, away from the gear, of the rack, and a plurality of limiting parts matched with the limiting holes are arranged on the base.

Preferably, the limiting part comprises a positioning plate arranged on the base, a limiting rod matched with the limiting hole is arranged on the positioning plate, and a spring is arranged between the limiting rod and the positioning plate.

Preferably, the supporting part comprises a supporting plate arranged on the round table, a plurality of clamping grooves are formed in the supporting plate along the height direction, a telescopic plate is connected in a sliding mode in the supporting plate, a clamping groove with the same size as the supporting plate is formed in the telescopic plate, and a limiting plate is arranged between the supporting plate and the clamping groove of the telescopic plate in a detachable mode.

Compared with the prior art, the utility model has the advantages that:

1. the three sliding blocks are used for clamping the shaft ends of the gear shafts, and compared with the point-to-point contact between the existing gear shafts and the clamping device, the sliding blocks are in surface-to-surface contact with the gear shafts, so that the stability of clamping the gear shafts on the clamp is improved on the basis of increasing the contact area.

2. Through the arrangement of the elastic pad on each sliding block, the elastic pad contacted with the flat end surface of the gear shaft can buffer vibration generated in the gear shaft press-fitting process, so that the stability of the gear shaft in the press-fitting process is further improved.

3. Through supporting mechanism's setting, after accomplishing the clamp of gear shaft, carry out auxiliary stay to epaxial gear of gear, improved the stability that the gear shaft pressed from both sides on the one hand, realize multiparty spacing to the gear shaft on the other hand, take place the skew when avoiding gear shaft pressure equipment, influence pressure equipment effect or take place the friction between gear shaft and the slider, cause the wearing and tearing of gear shaft.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a front cross-sectional view of the present utility model.

Fig. 3 is a schematic view of the utility model in a rear view.

Fig. 4 is an enlarged partial schematic view of fig. 2 a in accordance with the present utility model.

The reference numerals in the figures illustrate:

10. a base; 11. round bench; 12. a chute; 13. a slide block; 14. an extension plate; 15. an elastic pad; 16. a rotating shaft; 17. a turntable; 18. a gear; 19. a rack; 20. a positioning plate; 21. a limit rod; 22. a limiting hole; 23. a support plate; 24. a telescoping plate; 25. and a limiting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

First embodiment: referring to fig. 1-4, a press-fit clamp for a gear shaft of a gearbox includes a base 10, a clamping mechanism for clamping the gear shaft is provided on the base 10, and a supporting mechanism for supporting the gear shaft is provided on the clamping mechanism.

In this embodiment, the clamping mechanism includes a clamping portion, a triggering portion, and a limiting portion;

the supporting mechanism comprises three supporting parts which are circumferentially and equidistantly arranged on the clamping mechanism.

The clamping part of the clamping mechanism comprises a round table 11 arranged on a base 10, a supporting part is arranged on the round table 11, three sliding grooves 12 are arranged on the upper end surface of the round table 11 at equal intervals along the circumferential direction of the round table 11, sliding blocks 13 which are in a stepped shape are connected in each sliding groove 12 in a sliding manner, a triggering part for driving the three sliding blocks 13 to operate is further arranged in the round table 11, and a limiting part for limiting the triggering part is arranged on the base 10.

Further, an extending plate 14 is disposed on one side of each sliding block 13 facing the center point of the circular table 11, the extending plate 14 is L-shaped, the extending plate 14 and the corresponding sliding block 13 are integrally formed, and an elastic pad 15 is detachably disposed on each extending plate 14.

The trigger part comprises a rotating shaft 16 arranged on a base 10, a gear 18 is sleeved on the rotating shaft 16, a turntable 17 matched with three sliding blocks 13 is arranged above the gear 18 on the rotating shaft 16, a rack 19 meshed with the gear 18 is arranged below the turntable 17 in the round table 11, the rack 19 penetrates through the round table 11 to extend to the outside of the round table 11, a plurality of limiting holes 22 are formed in the end face of one side, far away from the gear 18, of the rack 19, and limiting parts matched with the limiting holes 22 are arranged on the base 10.

The limiting part comprises a positioning plate 20 arranged on the base 10, a limiting rod 21 matched with the limiting hole 22 is arranged on the positioning plate 20, and a spring is arranged between the limiting rod 21 and the positioning plate 20.

The supporting part comprises a supporting plate 23 arranged on the round table 11, a plurality of clamping grooves are formed in the supporting plate 23 along the height direction, a telescopic plate 24 is connected in a sliding mode in the supporting plate 23, a clamping groove with the same size as the supporting plate 23 is formed in the telescopic plate 24, and a limiting plate 25 is detachably arranged between the supporting plate 23 and the clamping groove of the telescopic plate 24.

Working principle: before the gear shaft is clamped, the limiting rod 21 is pulled to cancel the limiting on the rack 19, the rack 19 is pushed to move on the circular table 11, the rack 19 is meshed with the gear 18, the rotary table 17 is controlled to rotate in the circular table 11 through the rotary shaft 16, and when the rotary table 17 rotates, the three sliding blocks 13 are controlled to move in the corresponding sliding grooves 12 towards the center point of the circular table 11, namely, the diameter of an inscribed circle surrounded by the three sliding blocks 13 is controlled to be larger than the diameter of the gear shaft;

after the position adjustment of the three sliding blocks 13 is completed, the gear shaft is arranged among the three sliding blocks 13 along the vertical direction, the flat end surface of the gear shaft is abutted with the extension plates 14 on the three sliding blocks 13, after the gear shaft is arranged, the steps are repeated, the rack 16 is pulled reversely, the three sliding blocks 13 are controlled to move towards the direction close to the center point of the round table 11, and the three sliding blocks 13 are abutted with the peripheral surface of the gear shaft, so that the clamping work of the gear shaft is completed;

after the gear shaft is clamped, the limiting plate 25 on the supporting plate 23 is pulled out, the telescopic plate 24 is pulled to be abutted with the flat end face of the gear on the gear shaft, and then the limiting plate 25 is reset, so that auxiliary supporting work of the gear is completed.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Claims

1. The utility model provides a gearbox is pressure equipment anchor clamps for gear shaft, includes base (10), its characterized in that: the base (10) is provided with a clamping mechanism for clamping the gear shaft, and the clamping mechanism is provided with a supporting mechanism for supporting the gear shaft;

the clamping mechanism comprises a clamping part, a triggering part and a limiting part;

the supporting mechanism comprises three supporting parts, and the three supporting parts are circumferentially and equidistantly arranged on the clamping mechanism.

2. The press-fit clamp for a gear shaft of a gearbox according to claim 1, wherein: clamping mechanism's clamping part is including setting up round platform (11) on base (10), be equipped with on round platform (11) supporting part, the up end of round platform (11) is equipped with three spout (12), and is three spout (12) are followed round platform (11) circumferencial direction equidistant setting, every sliding connection has slider (13) that are echelonment in spout (12), still be equipped with the drive three in round platform (11) the trigger part of slider (13) operation, be equipped with on base (10) with right the spacing portion of trigger part.

3. The press-fit jig for a gear shaft of a transmission according to claim 2, wherein: each sliding block (13) is provided with an extension plate (14) towards one side of the center point of the round table (11), the extension plate (14) is L-shaped, the extension plate (14) and the corresponding sliding blocks (13) are integrally formed, and each extension plate (14) is detachably provided with an elastic pad (15).

4. The press-fit jig for a gear shaft of a transmission according to claim 2, wherein: the trigger part is including setting up pivot (16) on base (10), the cover is equipped with gear (18) on pivot (16), be located on pivot (16) the top of gear (18) be equipped with three slider (13) complex carousel (17), be located in round platform (11) the below of carousel (17) be equipped with rack (19) of gear (18) meshing, rack (19) run through round platform (11) extend to the outside of round platform (11), rack (19) are kept away from one side terminal surface of gear (18) is equipped with a plurality of spacing hole (22), be equipped with on base (10) with a plurality of spacing hole (22) complex spacing portion.

5. The press-fit clamp for a gear shaft of a gearbox according to claim 4, wherein: the limiting part comprises a positioning plate (20) arranged on the base (10), a limiting rod (21) matched with the limiting hole (22) is arranged on the positioning plate (20), and a spring is arranged between the limiting rod (21) and the positioning plate (20).

6. The press-fit jig for a gear shaft of a transmission according to claim 2, wherein: the supporting part comprises a supporting plate (23) arranged on the round table (11), a plurality of clamping grooves are formed in the supporting plate (23) along the height direction, a telescopic plate (24) is connected in the supporting plate (23) in a sliding mode, a clamping groove with the same size as the supporting plate (23) is formed in the telescopic plate (24), and a limiting plate (25) is arranged between the supporting plate (23) and the clamping groove of the telescopic plate (24) in a detachable mode.