CN215091684U

CN215091684U - Spot welding fixture for welding bicycle rear fork

Info

Publication number: CN215091684U
Application number: CN202121317949.6U
Authority: CN
Inventors: 兰立新
Original assignee: Tianjin Chuanhui Technology Development Co ltd
Current assignee: Tianjin Chuanhui Technology Development Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-10
Anticipated expiration: 2031-06-10

Abstract

The utility model belongs to the technical field of bicycle production facility and specifically relates to a spot welding anchor clamps for welding bicycle back vent, it spot welding anchor clamps include the bottom plate, are provided with the preceding clamping part that is used for two fixed yoke link on the bottom plate, are used for the well spacing portion of fixed connection board position and are used for two fixed yoke to keep away from the back joint portion of connecting plate one end, preceding clamping part, well spacing portion and the coaxial setting of back joint portion. In this application, through the setting of preceding clamping part, well spacing portion and back joint portion, improved the stability of position between two fixed yoke arms and the connecting plate, reduced because of the probability that the hookup location emergence deviation condition appears in the human factor, reached the effect that has improved back vent production quality.

Description

Spot welding fixture for welding bicycle rear fork

Technical Field

The application relates to the field of bicycle production equipment, in particular to a spot welding fixture for welding a bicycle rear fork.

Background

At present, the bicycle is used by more and more people in recent years due to the advantages of energy conservation and environmental protection, and becomes one of mainstream travel tools for people, the main supporting part of the bicycle is a bicycle frame, the part of the bicycle frame, which is positioned on a rear wheel, is a rear fork, and the rear fork needs to be welded in the production process.

Referring to fig. 1, the rear fork 1 includes a connecting plate 12 and two fork arms 11, the connecting plate 12 is located at the same side end position of the two fork arms 11, two ends of the connecting plate 12 are fixed with the two fork arms 11 respectively through spot welding, a through hole 121 is arranged in the middle of the connecting plate 12, one end of each fork arm 11 away from the connecting plate 12 is provided with a clamping groove 111 used in cooperation with a rear wheel, and the clamping groove 111 penetrates through two side walls of the fork arms 11 in the thickness direction; when the rear fork 1 is produced, a manual welding mode is usually adopted, a worker firstly accurately measures a welding point of the fork arm 11, then one end of the connecting plate 12 is abutted to the measuring position, spot welding is carried out again, the steps are repeated on the other fork arm 11, and the rear fork 1 is produced.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: need manually fix the hookup location of yoke and connecting plate during manual welding, the condition that hookup location takes place the deviation can appear, leads to the production quality of back vent low.

SUMMERY OF THE UTILITY MODEL

In order to improve the production quality of back vent, this application provides a spot welding anchor clamps for welding bicycle back vent.

The application provides a spot welding anchor clamps for welding bicycle back vent adopts following technical scheme:

the utility model provides a spot welding anchor clamps for welding bicycle back vent, spot welding anchor clamps include the bottom plate, are provided with the preceding clamping part that is used for two fixed yoke link on the bottom plate, are used for the well spacing portion of fixed connection board position and are used for two fixed yoke to keep away from the back joint portion of connecting plate one end, preceding clamping part, well spacing portion and the coaxial setting of back joint portion.

By adopting the technical scheme, the bottom plate supports the front clamping part, the middle limiting part, the rear clamping part and the rear fork; when the rear fork is welded, the two fork arms are placed between the front clamping part and the rear clamping part, the positions of the two fork arms on the bottom plate are positioned, then the connecting plate is installed between the two fork arms by using the middle limiting part, the middle limiting part fixes the position of the connecting plate, and then spot welding work among the two fork arms, the middle limiting part and the connecting plate is carried out; through the setting of preceding clamping part, spacing portion and back joint portion, improved the stability of fixing the position between two yoke arms and the connecting plate, reduced because of the probability that the deviation condition takes place for the human factor appearance hookup location, reached the effect that has improved back vent production quality.

Optionally, the front clamping portion comprises a clamping plate, a clamping groove used for clamping the end portions of the two fork arms on the same side is formed in the top of the clamping plate, the clamping groove penetrates through the side wall, close to the fork arms, of the clamping plate, the clamping plate is connected with the bottom wall in a sliding mode, and the clamping plate is connected with a driving piece used for driving the clamping plate to slide to clamp the end portions of the two fork arms on the same side.

Through adopting above-mentioned technical scheme, all put into the centre gripping inslot with two yoke one ends, then utilize driving piece drive grip block to slide, realized the controllability of grip block position, until the grip block with two yoke centre grippings, realized the centre gripping groove to two yoke one end position injects, improved the convenience of installing yoke one end in the front of the clamping part simultaneously.

Optionally, the bottom wall of the clamping groove does not penetrate through the bottom of the clamping plate, and the bottom wall of the clamping groove is abutted to the end part of the two fork arms on the same side.

Through adopting above-mentioned technical scheme, because the grip slipper bottom wall does not run through the grip slipper bottom, when all putting into the inserting groove with the one end of two yokes, two yokes all with grip slipper bottom wall butt, the grip slipper bottom wall provides supporting platform to two yoke one end, carries on spacingly to two yokes simultaneously, reduces the probability that the yoke breaks away from the grip slipper.

Optionally, the driving part is a first cylinder, the first cylinder is fixedly connected with the clamping plate, and meanwhile, the first cylinder is fixedly connected with the bottom plate.

Through adopting above-mentioned technical scheme, start first cylinder, first cylinder drives the grip block and begins rectilinear movement, has improved the convenience of removing the grip block, and first cylinder reaction is rapid simultaneously, has improved the efficiency of removing the grip block, has saved staff's application of force simultaneously.

Optionally, the two sides of the clamping plate are provided with slide rails, the two slide rails are fixedly connected with the bottom plate, and the two side walls of the clamping plate are respectively inserted into the two slide rails and are slidably connected with the two slide rails.

Through adopting above-mentioned technical scheme, because grip block both sides wall inserts respectively in two slide rails, promote the grip block, make grip block both sides wall slide with two slide rails respectively, the slide rail leads for the removal of grip block, has improved sliding connection's convenience between grip block and the bottom plate simultaneously.

Optionally, the middle limiting part comprises a positioning column for positioning the connecting plate, one end of the positioning column is fixedly connected with the bottom plate, and the other end of the positioning column is in plug-in fit with the through hole of the connecting plate.

Through adopting above-mentioned technical scheme, because the reference column is fixed in position on the bottom plate, when installing the connecting plate, make the reference column keep away from bottom plate one end and insert in the through-hole of connecting plate, the reference column has realized fixing a position fast to the connecting plate position.

Optionally, back joint portion includes fixed block and two joint posts, fixed block and bottom plate fixed connection, and two joint posts are located the fixed block both sides respectively, and two joint post one end all with fixed block fixed connection, the other end respectively with the draw-in groove joint cooperation of two yoke arms.

Through adopting above-mentioned technical scheme, because two joint post one end all with fixed block fixed connection, the fixed block provides the support to joint post position, then with the draw-in groove card of yoke in joint post department, the joint post is injectd the yoke and is located back joint portion one end, has improved the convenience of location yoke position.

Optionally, the joint post is connected with the locking subassembly, and the locking subassembly sets up and keeps away from joint post one side at the yoke, and the locking subassembly includes locking pipe and second cylinder, second cylinder and bottom plate fixed connection, locking pipe one end and second cylinder fixed connection, and the joint post is kept away from fixed block one end and is passed the yoke after and keep away from second cylinder one end grafting cooperation with the locking pipe.

Through adopting above-mentioned technical scheme, start the second cylinder, the second cylinder drives drive locking pipe and is close to the joint post gradually, because the draw-in groove of yoke also blocks in joint post department, the locking pipe is kept away from fixed block one side to the yoke and is injectd, has improved the stability that the yoke is located back joint portion.

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

1. through the arrangement of the front clamping part, the middle limiting part and the rear clamping part, the stability of fixing the positions between the two fork arms and the connecting plate is improved, the probability of deviation of the connecting position due to human factors is reduced, and the effect of improving the production quality of the rear fork is achieved;

2. the clamping grooves are arranged, so that the positions of one ends of the two fork arms are limited by the clamping grooves, and the convenience of mounting one end of each fork arm in the front clamping part is improved;

3. through the setting of reference column, make the reference column keep away from bottom plate one end and insert in the through-hole of connecting plate, the reference column has realized the quick location to the connecting plate position.

Drawings

FIG. 1 is a schematic structural view of a rear fork of the background art of the present application;

FIG. 2 is a schematic structural view of a rear fork placed in a spot welding jig in an embodiment of the present application;

FIG. 3 is a schematic structural view of a spot welding jig in the embodiment of the present application;

fig. 4 is a schematic cross-sectional view of the rear clamping portion in the embodiment of the present application.

Description of reference numerals: 1. a rear fork; 11. a yoke; 111. a card slot; 12. a connecting plate; 121. a through hole; 2. a spot welding jig; 21. a front clamping portion; 211. a clamping plate; 2111. a clamping groove; 212. a slide rail; 213. a first cylinder; 22. a middle limiting part; 221. a limiting plate; 222. a positioning column; 223. a step-up plate; 23. a rear clamping part; 231. a fixed block; 232. a clamping column; 2321. cushion blocks; 233. a locking assembly; 2331. a second cylinder; 2332. locking the tube; 24. a base plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a spot welding anchor clamps for welding bicycle back vent. Referring to fig. 1 and 2, a spot welding fixture for welding a bicycle rear fork is used for fixing the positions of all parts of the rear fork 1 needing spot welding, the spot welding fixture 2 comprises a bottom plate 24 horizontally arranged on an operating platform, and a front clamping part 21, a middle limiting part 22 and a rear clamping part 23 are sequentially arranged on the bottom plate 24 along the length direction of the bottom plate 24. When the rear fork 1 needs to be spot-welded, the positions of the two fork arms 11 of the rear fork 1 are fixed by the front clamping portion 21 and the rear clamping portion 23, the position of the connecting plate 12 of the rear fork 1 is fixed by the middle limiting portion 22, and then spot welding operation is performed between the two ends of the connecting plate 12 and the two fork arms 11.

Referring to fig. 1 and 2, the front clamping portion 21, the middle limiting portion 22 and the rear clamping portion 23 are coaxially arranged, the front clamping portion 21 and the rear clamping portion 23 are respectively arranged at two ends of the top of the bottom plate 24, and the bottom end of the bottom plate 24 is fixed with the operating table in a bolt mode. Remove 24 bottom ends of bottom plate and operation panel butt, then fix bottom plate 24 position, the installation of butt welding anchor clamps 2 has been accomplished, later recycle front clamping part 21, spacing portion 22 in and back joint portion 23 cooperation are fixing two yoke arms 11 and connecting plate 12 to back vent 1, thereby the stability of position between two fixed yoke arms 11 and the connecting plate 12 has been improved, the probability that the deviation condition takes place for the hookup location appears because of the human factor has been reduced, the effect that has improved back vent 1 production quality has been reached.

Referring to fig. 3 and 4, the rear clamping portion 23 includes a fixing block 231 and two clamping columns 232, the fixing block 231 is vertically and fixedly disposed on the bottom plate 24, the two clamping columns 232 are horizontally disposed, the two clamping columns 232 are respectively and symmetrically disposed on two sides of the fixing block 231 along the width direction of the bottom plate 24, cushion blocks 2321 are vertically disposed between the two clamping columns 232 and the fixing block 231, and two side walls of the cushion blocks 2321 are respectively and fixedly connected with the side walls of the fixing block 231 and the end portions, close to the fixing block 231, of the clamping columns 232; referring to fig. 1, the locking post 232 is in locking fit with the locking slot 111 of the yoke 11, and the locking assembly 233 is disposed on a side of the locking post 232 away from the pad 2321.

Referring to fig. 1 and 3, the locking assembly 233 includes a locking tube 2332 and a second cylinder 2331, the locking tube 2332 is disposed in parallel with the latching column 232, the locking tube 2332 is in a circular tube shape, one end of the locking tube 2332 far away from the latching column 232 is fixedly connected to the second cylinder 2331, the second cylinder 2331 is fixedly connected to the top end of the bottom plate 24, and referring to fig. 4, one end of the locking tube 2332 far away from the second cylinder 2331 is in plug-in fit with the latching column 232.

When the end of the yoke 11 away from the front clamping portion 21 is fixed by the rear clamping portion 23, the end of the yoke 11 with the clamping groove 111 is moved to be close to the clamping column 232, the clamping groove 111 is clamped with the side wall of the clamping column 232, the second cylinder 2331 is started, the second cylinder 2331 drives the locking tube 2332 to move in the direction close to the clamping column 232, then the end of the clamping column 232 away from the cushion block 2321 is inserted into the end of the locking tube 2332 away from the second cylinder 2331 until the end of the locking tube 2332 away from the second cylinder 2331 abuts against the side wall of the yoke 11, meanwhile, the yoke 11 abuts against the side wall of the cushion block 2321 away from the fixing block 231, the cushion block 2321 and the locking tube 2332 clamp the end of the yoke 11 with the clamping groove 111, so as to fix the position of the yoke 11, and then the above steps are repeated for the other yoke 11.

Referring to fig. 3, the front clamping portion 21 includes two clamping plates 211, two sliding rails 212 and a first cylinder 213, the two sliding rails 212 are vertically disposed, the two sliding rails 212 are all parallel to the length direction of the bottom plate 24, the two sliding rails 212 are aligned along the width direction of the bottom plate 24, sliding grooves in the two sliding rails 212 are all through grooves, the clamping plate 211 is horizontally disposed between the two sliding rails 212, two side walls of the clamping plate 211 are respectively inserted into the two sliding rails 212, two side walls of the clamping plate 211 are respectively slidably connected with the two sliding rails 212, the first cylinder 213 is horizontally disposed on one side of the clamping plate 211 away from the middle limiting portion 22, the first cylinder 213 and the clamping plate 211 are fixedly connected with one end of the middle limiting portion 22 away from the middle limiting portion, and the moving direction of a piston rod of the first cylinder 213 is the same as the opening direction of the sliding grooves in the sliding rails 212.

Referring to fig. 1 and 3, a clamping groove 2111 is formed in the top end of the clamping plate 211, the bottom wall of the clamping groove 2111 does not penetrate through the bottom end of the clamping plate 211, the side wall of the clamping groove 2111 penetrates through the side wall of the clamping plate 211, which is far away from the first cylinder 213, and the clamping groove 2111 is a trapezoid-like groove formed by the curve of the side portion of the connecting plate 12, which is far away from the attaching fork arm 11.

The one end of keeping away from draw-in groove 111 with two yoke 11 all is put into centre gripping groove 2111, yoke 11 bottom and centre gripping groove 2111 diapire butt, then start first cylinder 213, first cylinder 213 drive grip block 211 moves to the direction that is close to fixed block 231 along slide rail 212, one end and the centre gripping groove 2111 that the fixed block 231 was kept away from to yoke 11 are close to first cylinder 213 lateral wall butt, grip block 211 carries out the centre gripping with the one end that two yoke 11 kept away from draw-in groove 111 and fixes, yoke 11 is in the horizontality this moment.

Referring to fig. 1 and 3, well spacing portion 22 includes limiting plate 221, reference column 222 and bed hedgehopping board 223, the vertical setting of bed hedgehopping board 223 is on bottom plate 24, bed hedgehopping board 223 bottom and bottom plate 24 top fixed connection, bed hedgehopping board 223 top and centre gripping groove 2111 diapire are located same high department, limiting plate 221 and the equal vertical setting of reference column 222 are in bed hedgehopping board 223 top position, limiting plate 221 is located reference column 222 and keeps away from grip block 211 one side, limiting plate 221 sets up along bottom plate 24 width direction, reference column 222 bottom and bed hedgehopping board 223 top fixed connection, refer to fig. 2, the cooperation of pegging graft with through-hole 121 of connecting plate 12 is located the reference column 222 top.

After the two fork arms 11 are placed, the connecting plate 12 is moved to be close to the positioning columns 222 and the limiting plates 221, the top ends of the positioning columns 222 are inserted into the through holes 121 of the connecting plate 12 until the bottom end of the connecting plate 12 is abutted against the top end of the heightening plate 223, at this time, the side wall of the connecting plate 12 far away from the first cylinder 213 is abutted against the side wall of the limiting plate 221 close to the positioning columns 222, and the position of the connecting plate 12 between the two fork arms 11 is fixed; then, the two yoke arms 11 are fixed, so that the two ends of the connecting plate 12 are respectively abutted against the side walls of the two yoke arms 11, and then the two abutting points are subjected to spot welding operation.

The implementation principle of the spot welding fixture for welding the rear fork of the bicycle is as follows: when the spot welding fixture 2 is used for assisting the welding process of the rear fork 1, firstly, the spot welding fixture 2 is fixedly arranged on an operation table, then moving the yoke 11 close to the spot welding fixture 2, so that the end of the yoke 11 with the clamping groove 111 is clamped with the side wall of the positioning column 222, the other end of the yoke 11 is inserted into the holding groove 2111 and abuts against the bottom wall of the holding groove 2111, and then the above steps are repeated for the other yoke 11, the other yoke 11 is symmetrically placed between the rear engaging portion 23 and the front holding portion 21, the connecting plate 12 is then placed on the stopper plate 221 near the holding plate 211, and the positioning post 222 is inserted into the through hole 121 of the connecting plate 12, then the second cylinder 2331 is started to drive the locking tube 2332 to clamp the end of the yoke 11 with the clamping groove 111, the first cylinder 213 is started to push the clamping plate 211 to fix the other end of the yoke 11, and finally, the spot welding operation is performed on the connection part of the two ends of the connecting plate 12 and the two yokes 11.

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 spot welding anchor clamps for welding bicycle back vent which characterized in that: spot welding anchor clamps (2) are including bottom plate (24), are provided with preceding clamping part (21) that are used for fixed two yoke (11) links on bottom plate (24), are arranged in spacing portion (22) and be used for fixed two yoke (11) to keep away from back joint portion (23) of connecting plate (12) one end in spacing portion (22) of fixed connection board (12) position, preceding clamping part (21), well spacing portion (22) and back joint portion (23) coaxial setting.

2. A spot welding jig for welding a bicycle rear fork according to claim 1, characterized in that: preceding clamping part (21) are including grip block (211), and grip block (211) top is offered and is used for the centre gripping groove (2111) of two yoke (11) homonymy tip, and grip block (2111) runs through the lateral wall that grip block (211) is close to yoke (11), grip block (211) and diapire sliding connection, and grip block (211) are connected with and are used for driving grip block (211) and are sliding the driving piece with two yoke (11) homonymy tip centre grippings.

3. A spot welding jig for welding a bicycle rear fork according to claim 2, characterized in that: the bottom wall of the clamping groove (2111) does not penetrate through the bottom of the clamping plate (211), and the bottom wall of the clamping groove (2111) is abutted against the end part of the two fork arms (11) on the same side.

4. A spot welding jig for welding a bicycle rear fork according to claim 2, characterized in that: the driving part is a first air cylinder (213), the first air cylinder (213) is fixedly connected with the clamping plate (211), and meanwhile, the first air cylinder (213) is fixedly connected with the bottom plate (24).

5. A spot welding jig for welding a bicycle rear fork according to claim 2, characterized in that: the clamping plate is characterized in that sliding rails (212) are arranged on two sides of the clamping plate (211), the two sliding rails (212) are fixedly connected with the bottom plate (24), and two side walls of the clamping plate (211) are respectively inserted into the two sliding rails (212) and are in sliding connection with the two sliding rails (212).

6. A spot welding jig for welding a bicycle rear fork according to claim 1, characterized in that: the middle limiting part (22) comprises a positioning column (222) used for positioning the connecting plate (12), one end of the positioning column (222) is fixedly connected with the bottom plate (24), and the other end of the positioning column is in plug-in fit with the through hole (121) of the connecting plate (12).

7. A spot welding jig for welding a bicycle rear fork according to claim 1, characterized in that: back joint portion (23) are including fixed block (231) and two joint post (232), fixed block (231) and bottom plate (24) fixed connection, and two joint post (232) are located fixed block (231) both sides respectively, and two joint post (232) one end all with fixed block (231) fixed connection, the other end respectively with draw-in groove (111) joint cooperation of two yoke (11).

8. A spot welding jig for welding a bicycle rear fork according to claim 7, characterized in that: joint post (232) are connected with locking subassembly (233), locking subassembly (233) set up and keep away from joint post (232) one side in yoke (11), locking subassembly (233) are including locking pipe (2332) and second cylinder (2331), second cylinder (2331) and bottom plate (24) fixed connection, locking pipe (2332) one end and second cylinder (2331) fixed connection, joint post (232) are kept away from behind fixed block (231) one end pass yoke (11) and are kept away from second cylinder (2331) one end grafting cooperation with locking pipe (2332).