CN213470106U

CN213470106U - Bicycle front fork welding jig

Info

Publication number: CN213470106U
Application number: CN202022035961.XU
Authority: CN
Inventors: 吴祥光; 张永磊; 黄治彪
Original assignee: Suzhou Ruhengxiang Industrial Development Co ltd
Current assignee: Suzhou Ruhengxiang Industrial Development Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-06-18
Anticipated expiration: 2030-09-17

Abstract

The utility model relates to a bicycle front fork welding jig, which comprises a base, wherein a top tube positioning fixing module and a front fork arm positioning module are connected on a workbench of the base, and the top tube positioning fixing module and the front fork arm positioning module are positioned at two ends of the base; the upper pipe positioning and fixing module comprises a rotary pressing cylinder, a abdicating cylinder and a V-shaped seat, the rotary pressing cylinder is connected to the upper surface of the workbench, the abdicating cylinder is connected to the lower part of the workbench, the V-shaped seat is connected with a piston rod of the abdicating cylinder, and a positioning pin is arranged at one end of the V-shaped seat close to the front fork arm positioning module; the utility model discloses a bicycle front fork welding jig, adopt top tube location fixed module and front yoke orientation module, can improve welding position accuracy and production efficiency; the V-shaped seat can stretch out and draw back, so that blanking is facilitated; the positioning seat is adjusted in an inner-outer sliding mode, so that products can be placed conveniently, and the device is suitable for production of products of different models.

Description

Bicycle front fork welding jig

Technical Field

The utility model relates to a bicycle part production field, concretely relates to bicycle front fork welding jig.

Background

The front fork is a very important part of the bicycle and comprises an upper pipe and two front fork arms, and the upper pipe, the two front fork arms and the front fork arms are welded together to form a complete front fork in actual production; when welding, the above parts need to be positioned, and then welding can be carried out.

The problem of slow positioning speed exists in the process of positioning the welding device in the existing welding process, and some welding devices are positioned even by visual inspection and manually calibrated, so that the welding efficiency is low, and meanwhile, the welding positioning is not accurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the welding jig for the front fork of the bicycle is provided, and welding positioning accuracy and production efficiency are improved.

In order to achieve the above object, the present invention provides the following technical solutions:

a welding jig for a front fork of a bicycle comprises a base, wherein a workbench of the base is connected with an upper tube positioning and fixing module and a front fork arm positioning module, and the upper tube positioning and fixing module and the front fork arm positioning module are positioned at two ends of the base; the upper tube positioning and fixing module comprises a rotary compression cylinder, a yielding cylinder and a V-shaped seat, the rotary compression cylinder is connected to the upper surface of the workbench, the yielding cylinder is connected to the lower part of the workbench, the V-shaped seat is connected with a piston rod of the yielding cylinder, and one end of the V-shaped seat, close to the front fork arm positioning module, is provided with a positioning pin.

Furthermore, the front fork arm positioning module comprises two positioning seats which are arranged at intervals, and the two positioning seats are symmetrically arranged relative to the V-shaped seat; the side face of each positioning seat is provided with a round hole, one end, far away from the V-shaped seat, of each positioning seat is provided with a protruding block, a positioning hole is formed in the protruding block, and a positioning screw is connected to the positioning hole.

Furthermore, a bidirectional screw rod is rotatably connected to the workbench of the base, the two positioning seats can be slidably connected to the workbench of the base, and the two positioning seats are respectively in threaded connection with the two thread sections of the bidirectional screw rod.

Furthermore, the axis of the round hole is parallel to the direction of the V-shaped groove of the V-shaped seat; the positioning pin is positioned on the symmetrical surface of the V-shaped groove of the V-shaped seat.

Furthermore, a yielding hole is formed in the workbench of the base and is positioned below the V-shaped seat; and the compressing end of the rotary compressing cylinder is connected with a V-shaped block.

The utility model has the advantages that: the utility model discloses a bicycle front fork welding jig, adopt top tube location fixed module and front yoke orientation module, can improve welding position accuracy and production efficiency; the V-shaped seat can stretch out and draw back, so that blanking is facilitated; the positioning seat is adjusted in an inner-outer sliding mode, so that products can be placed conveniently, and the device is suitable for production of products of different models.

Drawings

FIG. 1 is an isometric view of a bicycle front fork welding jig of the present invention;

FIG. 2 is a partial structural view of a bicycle front fork welding jig of the present invention;

fig. 3 is an isometric view of a front yoke positioning module according to the present invention;

in the figure: 1. a base; 11. a hole of abdication; 2. an upper pipe positioning and fixing module; 21. rotating the compaction cylinder; 22. a yielding cylinder; 23. a V-shaped seat; 24. positioning pins; 25. a V-shaped block; 3. a front yoke positioning module; 31. positioning seats; 32. a circular hole; 33. a bump; 34. positioning holes; 35. a set screw; 36. a bidirectional screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 3, the present embodiment provides a bicycle front fork welding jig, including a base 1, wherein a top tube positioning and fixing module 2 and a front fork arm positioning module 3 are connected to a workbench of the base 1, and the top tube positioning and fixing module 2 and the front fork arm positioning module 3 are located at two ends of the base 1; go up fixed module in upper tube location 2 and compress tightly cylinder 21, abdication cylinder 22 and V-arrangement seat 23 including the rotation, the rotation compresses tightly cylinder 21 and connects on the workstation, and abdication cylinder 22 connects in the below of workstation, and V-arrangement seat 23 is connected with the piston rod of abdication cylinder 22 and V-arrangement seat 23 is close to preceding yoke orientation module 3 one end and is equipped with locating pin 24.

The rotary pressing cylinder 21 is used for pressing an upper pipe on the V-shaped seat 23; the positioning pin 24 is used for positioning with the connecting hole of the upper pipe; the abdicating cylinder 22 is used for driving the V-shaped seat 23 to move downwards for abdicating after welding is completed, so that a welded product is taken out from one side.

The front fork arm positioning module 3 comprises two positioning seats 31 arranged at intervals, and the two positioning seats 31 are symmetrically arranged around the V-shaped seat 23; the side surface of each positioning seat 31 is provided with a round hole 32, one end of each positioning seat 31, which is far away from the V-shaped seat 23, is provided with a convex block 33, the convex block 33 is provided with a positioning hole 34, and the positioning hole 34 is connected with a positioning screw 35.

The round hole 32 is used for placing a front fork arm so as to limit the front insertion arm; the positioning hole 34 is used for connecting a positioning screw 35, and the positioning screw 35 is used for penetrating through a connecting hole at one end of the front fork arm so as to position the front fork arm.

The base is characterized in that a bidirectional screw 36 is rotatably connected to the workbench of the base 1, the two positioning seats 31 can be slidably connected to the workbench of the base 1, and the two positioning seats 31 are respectively in threaded connection with two thread sections of the bidirectional screw 36. The two-way screw 36 is used for driving the two positioning seats 31 to move, so that the front yoke can be conveniently placed in the circular hole 32 (because one end of the front yoke is bent, if the positioning seat 31 is located at the welding position, the front yoke is difficult to insert into the circular hole 32), and the two-way screw is suitable for products of different models.

The axis of the round hole 32 is parallel to the V-shaped groove direction of the V-shaped seat 23; the positioning pin 24 is located on the symmetry plane of the V-shaped groove of the V-shaped seat 23.

A yielding hole 11 is formed in the workbench of the base 1, and the yielding hole 11 is located below the V-shaped seat 23; the compressing end of the rotary compressing cylinder 21 is connected with a V-shaped block 25.

The working principle is as follows: the upper pipe is placed on the V-shaped seat 23 for positioning according to the matching mode of the connecting hole of the upper pipe and the positioning pin 24, and then the rotary pressing cylinder 21 drives the V-shaped block 25 to press the upper pipe, so that the positioning of the upper pipe is completed.

Adjusting the two-way screw 36 and driving two positioning seats 31 to move outwards simultaneously, then inserting two front fork arms into the round holes 32 of two positioning seats 31 respectively, and passing the connecting hole of the one end of the front fork arm with set screw 35 and being connected with positioning hole 34, and then confirming the placing position and the rotating direction of the front fork arm, completing the positioning of the front fork arm, finally reversely rotating the two-way screw 36, driving two front fork arms to contact with the upper pipe, and then welding by the outside.

After the welding is accomplished, take off set screw 35, rotatory cylinder 21 that compresses tightly loosens and compresses tightly the upper tube, and the cylinder 22 of stepping down drives V-arrangement seat 23 and moves down in making locating pin 24 break away from the connecting hole of upper tube after that, steps down, then towards 2 directions take off the product that the welding was accomplished of upper tube fixed position module can.

The above examples are provided for further illustration of the present invention, but do not limit the present invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. The utility model provides a bicycle front fork welding jig which characterized in that: the device comprises a base (1), wherein a working table of the base (1) is connected with an upper pipe positioning and fixing module (2) and a front fork arm positioning module (3), and the upper pipe positioning and fixing module (2) and the front fork arm positioning module (3) are positioned at two ends of the base (1); go up fixed module in upper tube location (2) and compress tightly cylinder (21), let a position cylinder (22) and V-arrangement seat (23) including the rotation, the rotation compresses tightly cylinder (21) and connects on the workstation, lets a position cylinder (22) and connects in the below of workstation, and V-arrangement seat (23) are connected and V-arrangement seat (23) are close to front yoke orientation module (3) one end with the piston rod of letting a position cylinder (22) and are equipped with locating pin (24).

2. The bicycle front fork welding jig of claim 1, characterized in that: the front fork arm positioning module (3) comprises two positioning seats (31) which are arranged at intervals, and the two positioning seats (31) are symmetrically arranged relative to the V-shaped seat (23); the side of each positioning seat (31) is provided with a round hole (32), one end, far away from the V-shaped seat (23), of each positioning seat (31) is provided with a convex block (33), each convex block (33) is provided with a positioning hole (34), and each positioning hole (34) is connected with a positioning screw (35).

3. The bicycle front fork welding jig of claim 2, characterized in that: the base is characterized in that a bidirectional screw rod (36) is rotatably connected to a workbench of the base (1), the two positioning seats (31) can be slidably connected to the workbench of the base (1), and the two positioning seats (31) are respectively in threaded connection with two thread sections of the bidirectional screw rod (36).

4. The bicycle front fork welding jig of claim 3, characterized in that: the axis of the round hole (32) is parallel to the V-shaped groove direction of the V-shaped seat (23); the positioning pin (24) is positioned on the V-shaped groove symmetrical plane of the V-shaped seat (23).

5. The bicycle front fork welding jig of claim 1, characterized in that: the working table of the base (1) is provided with a yielding hole (11), and the yielding hole (11) is positioned below the V-shaped seat (23); the compressing end of the rotary compressing cylinder (21) is connected with a V-shaped block (25).