CN212734835U

CN212734835U - Head pipe positioning device of bicycle frame welding tool

Info

Publication number: CN212734835U
Application number: CN202021316576.6U
Authority: CN
Inventors: 蔡胜良
Original assignee: Suzhou Yongbang Bicycle Co ltd
Current assignee: Suzhou Yongbang Bicycle Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-03-19
Anticipated expiration: 2030-07-07

Abstract

The application relates to the field of bicycle part processing, in particular to a head pipe positioning device of a bicycle frame welding tool, which has the technical scheme that a supporting block is provided with a connecting block, the connecting block is provided with a groove for placing a head pipe, the groove extends to the side wall of the connecting block, which is far away from the supporting block, and the connecting block is provided with a fixing part for fixing the head pipe; the connecting block is provided with a counter bore in a penetrating manner on the side wall far away from the supporting block, the supporting block is provided with a connecting hole corresponding to the counter bore in a penetrating manner, and the counter bore and the connecting hole are internally provided with a fixing bolt in a penetrating manner. The head pipe is placed in the recess, can play fixed effect to the head pipe to a certain extent, when the mounting is fixed once more to the head pipe, the head pipe atress is less to can effectively reduce the probability that causes the damage to the head pipe, and then can improve the quality of head pipe and frame.

Description

Head pipe positioning device of bicycle frame welding tool

Technical Field

The application relates to the field of bicycle part machining, in particular to a head pipe positioning device of a bicycle frame welding tool.

Background

The bicycle is the most traditional vehicle and has the characteristics of convenience, rapidness, energy conservation and environmental protection. At present, with the continuous improvement of the life quality of people and the continuous enhancement of the consciousness of environmental protection of people, bicycles are increasingly used in the life of people, and the bicycle becomes more and more popular with people as a life culture.

The frame is used as the framework of the whole bicycle, and the correctness and the comfort of the riding posture are determined and influenced to the maximum extent.

Referring to fig. 1, the bicycle frame includes a head pipe 1, an upper pipe 2, a lower pipe 3, and a middle pipe 4, wherein a side surface of the head pipe 1 is connected to a front end of the upper pipe 2 and a front end of the lower pipe 3, and a side surface of the middle pipe 4 is connected to a rear end of the upper pipe 2 and a rear end of the lower pipe 3. Before welding the bicycle frame, the head pipe 1, the upper pipe 2, the lower pipe 3 and the middle pipe 4 need to be fixed into the shape of the bicycle frame, and then welding can be carried out.

Referring to fig. 2, the head pipe positioning device of the current welding tool includes a slide rail 6 disposed on the workbench 5 and two fixing plates 7 slidably disposed in the slide rail 6, the head pipe 1 is disposed between the two fixing plates 7, and the two ends of the head pipe 1 along the axial direction of the head pipe 1 are respectively fixed to the corresponding fixing plates 7 by moving the fixing plates 7.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: head tube 1 sets up between two fixed plates 7, and fixed plate 7 causes the damage to head tube 1 easily at the in-process that carries out the centre gripping to head tube 1 to influence the quality of head tube 1, and then influence the quality of frame.

SUMMERY OF THE UTILITY MODEL

In order to improve the quality of frame, this application provides a head pipe positioner of bicycle frame welding frock.

The application provides a pair of head pipe positioner of bicycle frame welding frock adopts following technical scheme:

a head pipe positioning device of a bicycle frame welding tool comprises a head pipe, the positioning device comprises a workbench, a supporting block is arranged on the workbench, a connecting block is arranged on the supporting block, a groove for placing the head pipe is arranged on the connecting block, the groove extends to the side wall of the connecting block, which is far away from the supporting block, and a fixing part for fixing the head pipe is arranged on the connecting block;

the connecting block is provided with a counter bore in a penetrating mode on the side wall far away from the supporting block, a connecting hole corresponding to the counter bore is formed in the supporting block in a penetrating mode, and a fixing bolt penetrates through the counter bore and the connecting hole together.

Through adopting above-mentioned technical scheme, when fixing the head pipe, at first place the head pipe in the recess, then fix the head pipe through the mounting, be convenient for weld the head pipe. The head pipe is placed in the recess, can play fixed effect to the head pipe to a certain extent, when the mounting is fixed once more to the head pipe, the head pipe atress is less to can effectively reduce the probability that causes the damage to the head pipe, and then can improve the quality of head pipe and frame.

On the other hand, the connecting block is connected with the supporting block through the fixing bolt, so that the connecting block can be conveniently mounted and dismounted, and the connecting block can be conveniently replaced.

Preferably, the connecting block is provided with a positioning block in a rotating mode, the top surface of the positioning block penetrates through and is provided with a mounting hole, the fixing piece comprises a fixing rod arranged in the mounting hole, the bottom end of the fixing rod penetrates out of the mounting hole to be abutted against a head pipe, and the mounting hole is provided with an elastic piece used for applying elastic acting force towards the direction of the groove to the fixing rod.

Through adopting above-mentioned technical scheme, under the initial condition, the dead lever offsets with the top of connecting block, and the elastic component is compressed. When needs are fixed to the head pipe, rotate the locating piece, rotate the dead lever to the top of head pipe, the dead lever moves down under the elastic action of elastic component for the dead lever offsets with the head pipe, can fix the head pipe, thereby can further improve frame welded precision and quality.

Preferably, the bottom end of the fixing rod is provided with an elastic pad.

Through adopting above-mentioned technical scheme, the setting of cushion can prevent that dead lever and head pipe direct contact from causing the damage to the head pipe to can improve the quality of head pipe, thereby can further improve the quality of frame.

Preferably, a rubber pad is arranged in the groove.

Through adopting above-mentioned technical scheme, the setting of rubber pad can prevent effectively that the head pipe from causing the damage and influencing the quality of head pipe when fixing in the recess to the head pipe.

Preferably, the groove is arranged in an arc shape, pressing blocks are arranged in the groove and positioned at the top and the bottom of the groove, and the pressing blocks are arranged along the length direction of the connecting block;

the briquetting is the L shape setting, be formed with the installation cavity that is used for placing the rubber pad between briquetting and the recess diapire.

Through adopting above-mentioned technical scheme, the rubber pad is installed in the installation cavity, can play fixed effect to the rubber pad, and the change of the rubber pad of being convenient for.

Preferably, the pressing block is provided with a plurality of pressing blocks, and the plurality of pressing blocks are arranged along the length direction of the connecting block.

Through adopting above-mentioned technical scheme, the briquetting can play fixed the time to the rubber pad, the installation of the rubber pad of being convenient for to can further increase the area of contact of head pipe and rubber pad, thereby can further avoid causing the damage and influence the quality of head pipe to the head pipe.

Preferably, the rubber pad is flush with the side wall of the pressing block far away from the bottom wall of the groove.

Through adopting above-mentioned technical scheme, the lateral wall that recess diapire was kept away from to rubber pad and briquetting flushes mutually, can effectively reduce the probability that the in-process that carries out the fixing to the head pipe caused the damage to the head pipe.

Preferably, the bottom surface of rubber pad is provided with the wedge, be provided with the spout that supplies the wedge to slide the setting in the recess.

Through adopting above-mentioned technical scheme, the wedge slides and sets up in the spout, when the rubber pad installation of being convenient for, can further increase the connection stability between rubber pad and the recess.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the head pipe is placed in the groove of the connecting block, the head pipe is fixed through the fixing piece, and the connecting block is detachably connected with the supporting block, so that the connecting block is convenient to replace, the influence on the quality of the head pipe caused by damage to the head pipe when the head pipe is placed in the groove can be effectively reduced, and the quality of the head pipe can be further improved;

2. the rubber pad can be fixed by the arrangement of the pressing block, and the rubber pad is convenient to replace;

3. through the setting of wedge and spout, the wedge slides and sets up in the spout, when the rubber pad installation of being convenient for, can further increase the connection stability between rubber pad and the recess.

Drawings

FIG. 1 is a schematic structural view of a bicycle frame illustrated in the background of the present application;

FIG. 2 is a schematic view of the structure of a related head pipe positioning device shown in the background of the present application;

FIG. 3 is a schematic structural view of a head pipe positioning device according to an embodiment of the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of another embodiment of a head pipe positioning device according to the present application;

fig. 6 is an enlarged view of a portion B in fig. 5.

Description of reference numerals: 1. a head pipe; 2. feeding a pipe; 3. a lower pipe; 4. a middle tube; 5. a work table; 6. a slide rail; 7. a fixing plate; 8. a support block; 9. connecting blocks; 10. a groove; 11. a counter bore; 12. fixing the bolt; 13. briquetting; 14. positioning a plate; 15. a butt joint plate; 16. a mounting cavity; 17. a rubber pad; 18. a wedge block; 19. a chute; 20. positioning blocks; 21. mounting holes; 22. fixing the rod; 23. an elastic pad; 24. a ring groove; 25. a limiting ring; 26. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 3-6.

The embodiment of the application discloses head pipe positioner of bicycle frame welding frock. Referring to fig. 3, the bicycle frame includes a head pipe 1.

Referring to fig. 3 and 4, the positioning device includes a workbench 5, a support block 8 is disposed on the workbench 5, a connection block 9 is disposed on the support block 8, a groove 10 for placing the head pipe 1 is disposed on the connection block 9, the groove 10 extends to a side wall of the connection block 9 far away from the support block 8, and the groove 10 extends to two ends of the connection block 9 along a length direction thereof. The connecting block 9 is provided with a plurality of counter bores 11 on keeping away from the lateral wall of supporting shoe 8 through running through, is provided with the connecting hole corresponding with counter bore 11 on the supporting shoe 8, wears to be equipped with fixing bolt 12 in counter bore 11 and the connecting hole jointly, the installation and the dismantlement of the connecting block 9 of being convenient for.

Referring to fig. 4, recess 10 is the arc setting, and the top that just is located recess 10 in the recess 10 all is provided with briquetting 13 with the bottom, and briquetting 13 is connected with butt board 15 including locating plate 14 and the butt board 15 that sets gradually, locating plate 14, and the one end that recess 10 was kept away from to locating plate 14 is connected with butt board 15, and locating plate 14 is L shape setting with butt board 15 jointly, is formed with installation cavity 16 between butt board 15 and the recess 10 diapire.

Referring to fig. 4, a rubber pad 17 is arranged in the mounting cavity 16, and the rubber pad 17 is flush with the side wall of the abutting plate 15 far away from the positioning plate 14, so that the probability of damage to the head pipe 1 in the process of fixing the head pipe 1 is reduced.

Referring to fig. 4, as an embodiment of the pressing member 13, the pressing member 13 is disposed along a longitudinal direction of the connecting block 9, and can fix the rubber pad 17.

Referring to fig. 5 and 6, as another embodiment of the pressing block 13, the pressing block 13 is provided in plurality, and the pressing blocks 13 are uniformly distributed along the length direction of the connecting block 9, so that the pressing block 13 can fix the rubber pad 17, and simultaneously, the rubber pad 17 is convenient to mount, and the contact area between the head pipe 1 and the rubber pad 17 can be further increased, thereby further avoiding the influence on the quality of the head pipe 1 due to the damage to the head pipe 1.

Referring to fig. 4, a wedge block 18 is arranged on the bottom surface of the rubber pad 17 and in the middle of the rubber pad 17, the wedge block 18 is arranged along the length direction of the rubber pad 17, a sliding groove 19 for the wedge block 18 to slide is arranged on the bottom wall of the groove 10, and the sliding groove 19 extends to two ends of the connecting block 9 along the length direction of the connecting block. The wedge-shaped block 18 is arranged in the sliding groove 19 in a sliding mode, so that the rubber pad 17 can be conveniently installed, and meanwhile, the connection stability between the rubber pad 17 and the groove 10 can be further improved.

Referring to fig. 4, a positioning block 20 is rotatably disposed on the connecting block 9 by a bolt, and a mounting hole 21 is formed through the top surface of the positioning block 20. The positioning block 20 is provided with a fixing member for fixing the head pipe 1, specifically, the fixing member includes a fixing rod 22 disposed in the mounting hole 21, the bottom end of the fixing rod 22 penetrates out of the mounting hole 21 and is connected with an elastic pad 23, and the elastic member may be made of rubber. Specifically, the bottom end of the fixing rod 22 and the elastic pad 23 are both in an arc shape matched with the head pipe 1, so that the contact area between the elastic pad 23 and the head pipe 1 can be increased, and the head pipe 1 can be further fixed.

Referring to fig. 4, a ring groove 24 is formed in the side wall of the mounting hole 21 along the circumferential direction of the mounting hole, a limiting ring 25 is sleeved on the fixing rod 22 and located in the ring groove 24 to prevent the fixing rod 22 from being separated from the mounting hole 21, an elastic member is arranged in the mounting hole 21, specifically, the elastic member is a spring 26 sleeved on the fixing rod 22, one end of the spring 26 is connected with the limiting ring 25, and the other end of the spring 26 is connected with the ring groove 24.

Referring to fig. 4, in an initial state, the fixing lever 22 abuts against the top surface of the connecting block 9, and the spring 26 is compressed. When the head pipe 1 needs to be fixed, the positioning block 20 is rotated, and when the fixing rod 22 is rotated to the upper part of the head pipe 1, the fixing rod 22 moves downwards under the elastic action of the spring 26, so that the elastic pad 23 is abutted against the head pipe 1, and the head pipe 1 can be fixed.

The implementation principle of the head pipe positioning device of the bicycle frame welding tool in the embodiment of the application is as follows:

in fixing the head pipe 1, the rubber pad 17 is first placed in the mounting cavity 16, at which time the wedge block 18 is disposed in the slide groove 196, and then the head pipe 1 is placed in the groove 10. After the head pipe 1 is placed in the groove 10, the positioning block 20 is rotated, the fixing rod 22 is rotated to the position above the head pipe 1, and the fixing rod 22 moves downwards under the elastic action of the spring 26, so that the elastic pad 23 is abutted against the head pipe 1, and the head pipe 1 can be fixed. Under the dual function of rubber pad 17 and elastic pad 23, can effectively reduce the probability that head pipe 1 takes place to damage to can further improve the quality of head pipe 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a head pipe positioner of bicycle frame welding frock, this bicycle frame include head pipe (1), and this positioner includes workstation (5), be provided with supporting shoe (8) on workstation (5), its characterized in that: the supporting block (8) is provided with a connecting block (9), the connecting block (9) is provided with a groove (10) for placing the head pipe (1), the groove (10) extends to the side wall of the connecting block (9) far away from the supporting block (8), and the connecting block (9) is provided with a fixing piece for fixing the head pipe (1);

the side wall, far away from the supporting block (8), of the connecting block (9) is provided with a counter bore (11) in a penetrating mode, the supporting block (8) is provided with a connecting hole corresponding to the counter bore (11) in a penetrating mode, and the counter bore (11) and the connecting hole are internally and jointly penetrated with a fixing bolt (12).

2. The head tube positioning device of the bicycle frame welding tool according to claim 1, characterized in that: rotate on connecting block (9) and be provided with locating piece (20), the top surface of locating piece (20) runs through and is provided with mounting hole (21), the mounting is including setting up dead lever (22) in mounting hole (21), mounting hole (21) are worn out to the bottom of dead lever (22) and are offseted with head pipe (1), mounting hole (21) are provided with and are used for applying the elastic component towards recess (10) direction elastic force to dead lever (22).

3. The head tube positioning device of the bicycle frame welding tool according to claim 2, characterized in that: the bottom end of the fixed rod (22) is provided with an elastic pad (23).

4. The head tube positioning device of the bicycle frame welding tool according to claim 1, characterized in that: a rubber pad (17) is arranged in the groove (10).

5. The head tube positioning device of the bicycle frame welding tool according to claim 4, characterized in that: the groove (10) is arranged in an arc shape, pressing blocks (13) are arranged in the groove (10) and positioned at two ends of the groove (10), and the pressing blocks (13) are arranged along the length direction of the connecting block (9);

briquetting (13) are the setting of L shape, be formed with between briquetting (13) and recess (10) diapire and be used for placing installation cavity (16) of rubber pad (17).

6. The head tube positioning device of the bicycle frame welding tool according to claim 5, characterized in that: the pressing blocks (13) are arranged in a plurality, and the pressing blocks are arranged along the length direction of the connecting block (9).

7. The head tube positioning device of the bicycle frame welding tool according to claim 4, characterized in that: the rubber pad (17) is flush with the side wall of the pressing block (13) far away from the bottom wall of the groove (10).

8. The head tube positioning device of the bicycle frame welding tool according to claim 4, characterized in that: the bottom surface of rubber pad (17) is provided with wedge (18), be provided with in recess (10) and supply wedge (18) to slide spout (19) that set up.