A welding apparatus for welding a bicycle frame

Abstract

This invention relates to the field of bicycle frame welding technology and discloses a welding device for welding bicycle frames, including a support base, a frame body, and an auxiliary support frame. A support shell is fixedly connected to the upper surface of the support base, and a second rotating disk is rotatably connected inside the support shell. An automatic clamping mechanism for automatically clamping the frame body is provided on the side surface of the second rotating disk. A synchronous clamping mechanism for simultaneously clamping the frame body is provided on one side of the automatic clamping mechanism. A synchronous support mechanism for supporting the frame body is provided on the upper surface of the automatic clamping mechanism. A welding cooling mechanism for simultaneously cooling the frame body and the auxiliary support frame during welding is provided on the upper surface of the support base. This significantly improves the workpiece clamping accuracy and welding posture rationality, effectively avoids problems such as welding misalignment, incomplete welding, and weld burn-through at the bend of the auxiliary wheel bracket support rod, and greatly improves the welding quality and workpiece yield.

Description

Technical Field

[0001] This invention relates to the field of bicycle frame welding technology, and specifically provides a welding device for welding bicycle frames. Background Technology

[0002] A welding device for bicycle frames is an automated welding unit specifically designed for the processing of children's bicycle frames and training wheel brackets. It mainly consists of a support base, an automatic clamping mechanism, a synchronous clamping mechanism, a synchronous support mechanism, and a welding cooling mechanism. This equipment can smoothly flip a vertically placed frame to a horizontal welding station. Through multiple sets of linked clamping and support structures, it achieves rapid workpiece clamping and precise positioning. Combined with an adjustable welding torch and synchronous cooling components, it completes efficient and stable welding of the support rods at the bends of the frame body and training wheel brackets, improving the welding quality and production efficiency of children's bicycles.

[0003] Existing welding equipment for children's bicycle auxiliary wheel brackets generally suffers from poor tooling adaptability and insufficient positioning accuracy. This results in poor welding angles when the welding torch is placed vertically, misalignment of support rods at bends, and incomplete welds or burn-through. Different frames cannot be reliably flipped to a horizontal welding position, easily leading to independent operation of various mechanisms without linkage, lack of synchronous cooling and stress control, resulting in severe thermal deformation of thin-walled workpieces and low yield rates. This makes it difficult to meet the production requirements for stable, efficient, and automated welding of children's bicycle auxiliary wheel brackets. Therefore, we propose a welding equipment for bicycle frame welding. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a welding device for welding bicycle frames, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device for welding bicycle frames, comprising a support base, a frame body, and an auxiliary support frame. A support shell is fixedly connected to the upper surface of the support base, and a second rotating disk is rotatably connected inside the support shell. An automatic clamping mechanism for automatically clamping the frame body is provided on the side surface of the second rotating disk. A synchronous clamping mechanism for simultaneously clamping the frame body is provided on one side of the automatic clamping mechanism. A synchronous support mechanism for supporting the frame body is provided on the upper surface of the automatic clamping mechanism. A welding cooling mechanism for welding the frame body and the auxiliary support frame and simultaneously cooling them during welding is provided on the upper surface of the support base.

[0006] Preferably, the automatic clamping mechanism includes a placement base fixedly connected to the side surface of the second rotating disk. A first telescopic rod is fixedly connected inside the placement base. A first clamping block is fixedly connected to one end of the first telescopic rod. A first spring is sleeved on the outer surface of the first telescopic rod. A push-pressing frame is fixedly connected to the side surface of the first clamping block. A telescopic pulling frame is slidably connected inside the placement base. A sliding protective plate is fixedly connected to the outer surface of the telescopic pulling frame. A lifting pressure rod is fixedly connected to the top of the telescopic pulling frame. A pulling telescopic rod is fixedly connected to the upper surface of the sliding protective plate. A pulling spring is sleeved on the outer surface of the pulling telescopic rod. A rubber inclined plate is fixedly connected to the inner upper surface of the lifting pressure rod.

[0007] Preferably, the push clamping frame is slidably connected inside the placement base, the first spring is disposed between the placement base and the first clamping block, the vehicle frame body is clamped between the first clamping block and the placement base, the sliding protective plate is slidably connected to the upper surface of the placement base, and the lifting pressure rod and the sliding protective plate are connected by a pulling telescopic rod.

[0008] Preferably, the synchronous clamping mechanism includes a fixed guide rail fixedly connected inside the placement base, a sliding toothed rod slidably connected to the outer surface of the fixed guide rail, a first fixed frame fixedly connected to the lower inner surface of the placement base, a transmission gear rotatably connected inside the first fixed frame, a second telescopic rod fixedly connected to one side of the sliding toothed rod, a second spring sleeved on the outer surface of the second telescopic rod, a pulling toothed rod fixedly connected to one side of the telescopic pulling frame, a third telescopic rod fixedly connected to one end of the pulling toothed rod, a third spring sleeved on the outer surface of the third telescopic rod, a first sliding frame fixedly connected to the lower surface of the placement base, a connecting rod fixedly connected to one side of the pulling toothed rod, a pulling rod rotatably connected to the outer surface of the connecting rod, a first limiting groove formed inside the pulling rod, and a first fixed rod fixedly connected to the side surface of the support shell.

[0009] Preferably, the second telescopic rod is disposed at the front end of the push clamping frame, the transmission gear is meshed with the pull rack, the transmission gear is meshed with the sliding rack, one end of the third telescopic rod is fixedly connected to the inner side surface of the placement base, the connecting rod is slidably connected to the inside of the first sliding frame, and the first fixed rod is slidably connected to the inside of the first limiting groove.

[0010] Preferably, the synchronous support mechanism includes a fixed inclined plate fixedly connected to one side of the base, a fourth telescopic rod fixedly connected to the side surface of the fixed inclined plate, a fourth spring sleeved on the outer surface of the fourth telescopic rod, a support block fixedly connected to one side of the fourth telescopic rod, a fifth telescopic rod fixedly connected inside the fixed inclined plate, a first inclined block fixedly connected to the top of the fifth telescopic rod, a fifth spring sleeved on the outer surface of the fifth telescopic rod, a push plate fixedly connected to one side of the first inclined block, a second inclined block fixedly connected to the rear side of the support block, a second fixed rod and a first limiting block fixedly connected to the side surface of the support shell, a push spring sleeved on the outer surface of the second fixed rod, a second sliding frame slidably connected to the outer surface of the second fixed rod, and a push rod fixedly connected to one side of the second sliding frame.

[0011] Preferably, the support block is fixedly connected to the side surface of the fixed inclined plate by a fourth telescopic rod, the push plate is slidably connected inside the fixed inclined plate, the first inclined block is fixedly connected to the upper surface of the fixed inclined plate by a fifth telescopic rod, and the push rod presses against the upper surface of the push plate.

[0012] Preferably, the welding cooling mechanism includes a first support rod fixedly connected to the upper surface of the support base, a base plate fixedly connected to the upper end of the first support rod, a transverse sliding plate slidably connected to the upper surface of the base plate, a longitudinal sliding plate slidably connected to the upper surface of the transverse sliding plate, a rotating arm rotatably connected to the upper surface of the longitudinal sliding plate, a welding head fixedly connected to the upper end of the rotating arm, a frame fixedly connected to the lower surface of the base plate, a first tilting motor fixedly connected inside the frame, a telescopic rotating rod fixedly connected to the output shaft of the first tilting motor, a first rotating disk fixedly connected to one end of the telescopic rotating rod, a second fixed frame fixedly connected to one side of the first rotating disk, a lifting frame slidably connected inside the second fixed frame, an electric telescopic rod fixedly connected inside the lifting frame, a bottom clamping block fixedly connected to the bottom end of the lifting frame, and an upper clamping block rotatably connected to the side surface of the lifting frame.

[0013] Preferably, a cooling air duct is fixedly connected to the side surface of the support shell, an air vent is opened inside the support shell, a second limiting block is fixedly connected to the upper surface of the placement base, a condenser tube is fixedly connected inside the second limiting block, and condenser tubes are provided inside both the second limiting block and the support block.

[0014] Preferably, a third limiting block is fixedly connected to the side surface of the second rotating disk, a second limiting groove is opened on the side surface of the support shell, a second support rod is fixedly connected to the upper surface of the support base, a second flip motor is fixedly connected to the upper end of the second support rod, a flip gear is fixedly connected to the output shaft of the second flip motor, and a slot is opened on the side surface of the support shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention, by setting up an automatic clamping mechanism, a synchronous clamping mechanism, and a synchronous support mechanism, can stably clamp children's bicycle frames and auxiliary wheel brackets from multiple directions. At the same time, through the second rotating disk, the second support rod, the second flipping motor, the flipping gear, the slot, the second limiting slot, and the third limiting block, the vertically placed frame can be smoothly flipped to the horizontal welding position, which significantly improves the workpiece clamping accuracy and the rationality of the welding posture, effectively avoids problems such as welding misalignment, incomplete welding, and weld burn-through at the bend of the auxiliary wheel bracket support rod, and greatly improves the welding quality and workpiece yield.

[0017] 2. This invention achieves integrated welding and synchronous cooling through the coordinated linkage of the welding cooling mechanism and various motion mechanisms, which quickly reduces welding thermal stress and thermal deformation of thin-walled parts at the bends of the auxiliary wheel bracket. At the same time, the overall equipment is highly automated and easy to operate, which can effectively reduce labor intensity and improve production efficiency. It is more suitable for the mass, stable and high-precision industrial welding production of children's bicycle auxiliary wheel brackets. Attached Figure Description

[0018] Figure 1 This is a front view of a welding device for welding bicycle frames according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the internal structure of a welding device for welding bicycle frames proposed in this invention.

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a second-view schematic diagram of a welding device for welding bicycle frames proposed in this invention;

[0022] Figure 5 For the present invention Figure 4 Enlarged view of point B;

[0023] Figure 6 For the present invention Figure 4 Enlarged view of point C;

[0024] Figure 7 This is a side sectional view of a welding device for welding bicycle frames according to the present invention;

[0025] Figure 8 This is a cross-sectional view of an automatic clamping mechanism for a welding device used for welding bicycle frames, as proposed in this invention.

[0026] Legend:

[0027] 1. Support base; 2. Automatic clamping mechanism; 201. Placement base; 202. First telescopic rod; 203. First spring; 204. First clamping block; 205. Pushing clamping frame; 206. Telescopic pulling frame; 207. Sliding protective plate; 208. Lifting pressure rod; 209. Pulling telescopic rod; 210. Pulling spring; 211. Rubber inclined plate; 3. Synchronous clamping mechanism; 301. Fixed guide rail; 302. Sliding gear; 303. First fixed frame; 304. Transmission gear 305. Wheel; 306. Second telescopic rod; 307. Second spring; 308. Pulling rack; 309. Third telescopic rod; 310. First sliding frame; 311. Connecting rod; 312. Pulling rod; 313. First limiting groove; 314. First fixing rod; 4. Synchronous support mechanism; 401. Fixed inclined plate; 402. Fourth telescopic rod; 403. Fourth spring; 404. Support block; 405. Fifth telescopic rod; 406. Fifth spring; 407. First... 408. Inclined block; 409. Push plate; 410. Second inclined block; 411. Second fixed rod; 412. First limiting block; 413. Push spring; 414. Second sliding frame; 415. Push rod; 5. Welding cooling mechanism; 501. First support rod; 502. Base plate; 503. Horizontal sliding plate; 504. Longitudinal sliding plate; 505. Rotating arm; 506. Welding head; 507. Frame; 508. First tilting motor; 509. Telescopic rotating rod; 510. First rotating... 511. Second fixed frame; 512. Electric telescopic rod; 513. Lifting frame; 514. Bottom clamping block; 515. Upper clamping block; 516. Cooling air duct; 517. Air outlet; 518. Second limiting block; 519. Condenser pipe; 6. Support shell; 7. Frame body; 8. Auxiliary support frame; 14. Second rotating plate; 15. Second support rod; 16. Second tilting motor; 17. Tilting gear; 18. Groove; 19. Second limiting groove; 20. Third limiting block. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0030] like Figure 1 - Figure 8The welding equipment shown includes a support base 1, a frame body 7, and an auxiliary support frame 8. A support shell 6 is fixedly connected to the upper surface of the support base 1. A second rotating disk 14 is rotatably connected inside the support shell 6. An automatic clamping mechanism 2 for automatically clamping the frame body 7 is provided on the side surface of the second rotating disk 14. A synchronous clamping mechanism 3 for synchronously clamping the frame body 7 is provided on one side of the automatic clamping mechanism 2. A synchronous support mechanism 4 for supporting the frame body 7 is provided on the upper surface of the automatic clamping mechanism 2. A welding cooling mechanism 5 for welding the frame body 7 and the auxiliary support frame 8 and for synchronously cooling them during welding is provided on the upper surface of the support base 1.

[0031] The automatic clamping mechanism 2 includes a placement base 201 fixedly connected to the side surface of the second rotating disk 14. A first telescopic rod 202 is fixedly connected inside the placement base 201. A first clamping block 204 is fixedly connected to one end of the first telescopic rod 202. A first spring 203 is sleeved on the outer surface of the first telescopic rod 202. A push-pressing frame 205 is fixedly connected to the side surface of the first clamping block 204. A telescopic pulling frame 206 is slidably connected inside the placement base 201. A sliding protective plate 207 is fixedly connected to the outer surface of the telescopic pulling frame 206. A lifting pressure rod 208 is fixedly connected to the top of the telescopic pulling frame 206. A pull-telescopic rod 209 is fixedly connected to the upper surface of the protective plate 207. A pull spring 210 is sleeved on the outer surface of the pull-telescopic rod 209. A rubber inclined plate 211 is fixedly connected to the inner upper surface of the lifting pressure rod 208. The push clamping frame 205 is slidably connected to the inside of the placement base 201. The first spring 203 is set between the placement base 201 and the first clamping block 204. The frame body 7 is clamped between the first clamping block 204 and the placement base 201. The sliding protective plate 207 is slidably connected to the upper surface of the placement base 201. The lifting pressure rod 208 and the sliding protective plate 207 are connected by the pull-telescopic rod 209.

[0032] Furthermore, the automatic clamping mechanism 2 is used to limit and clamp the frame body 7. The frame body 7 is placed between the first clamping block 204 and the placement base 201. Under the action of the first spring 203, the frame body 7 is limited and clamped. When flipping, the telescopic pull frame 206 will move backward. When it moves, the lifting pressure rod 208 and the rubber inclined plate 211 are pulled to the top of the frame body 7. Under the pull of the pull spring 210, the frame body 7 is pressed tightly. The rubber inclined plate 211 further presses and fixes the frame body 7. The placement base 201, the first telescopic rod 202, the first spring 203, and the first clamping block 204 realize the rapid centering and clamping of the workpiece, effectively preventing welding deviation. The rubber inclined plate 211, the lifting pressure rod 208, the telescopic pull frame 206, the sliding protective plate 207, and the pull spring 210 realize synchronous pressing and protection, reduce workpiece vibration and movement, and significantly improve clamping consistency and welding positioning accuracy.

[0033] The synchronous clamping mechanism 3 includes a fixed guide rail 301 fixedly connected inside the placement base 201. A sliding gear 302 is slidably connected to the outer surface of the fixed guide rail 301. A first fixed frame 303 is fixedly connected to the lower inner surface of the placement base 201. A transmission gear 304 is rotatably connected inside the first fixed frame 303. A second telescopic rod 305 is fixedly connected to one side of the sliding gear 302. A second spring 306 is sleeved on the outer surface of the second telescopic rod 305. A pulling gear 307 is fixedly connected to one side of the telescopic pulling frame 206. A third telescopic rod 308 is fixedly connected to one end of the pulling gear 307. A third spring 309 is sleeved on the outer surface of the third telescopic rod 308. The lower surface of the placement base 201 is fixedly connected to... A first sliding frame 310 is connected to a connecting rod 311 fixedly connected to one side of the pulling rack 307. A pulling rod 312 is rotatably connected to the outer surface of the connecting rod 311. A first limiting groove 313 is opened inside the pulling rod 312. A first fixing rod 314 is fixedly connected to the side surface of the support shell 6. A second telescopic rod 305 is set at the front end of the push clamping frame 205. A transmission gear 304 is meshed with the pulling rack 307. A transmission gear 304 is meshed with the sliding rack 302. One end of a third telescopic rod 308 is fixedly connected to the inner side surface of the placement base 201. The connecting rod 311 is slidably connected inside the first sliding frame 310. The first fixing rod 314 is slidably connected inside the first limiting groove 313.

[0034] Furthermore, the synchronous clamping mechanism 3 pulls the telescopic pull frame 206 during the flipping process. When the second rotating disk 14 drives the placement base 201 to flip, the first fixed rod 314 first slides inside the first limiting groove 313. When it slides to the bottom of the first limiting groove 313 and continues to rotate, the pull rod 312 pulls the connecting rod 311 and the pull gear 307 to move backward. When the pull gear 307 moves backward, it drives the telescopic pull frame 206 to move backward, thereby driving the lifting pressure rod 208 and the rubber inclined plate 211 to move above the frame body 7 to limit and press the frame body 7. At the same time, the pull gear 307 pushes the transmission gear 304 to rotate, and then the rotating transmission gear 304 pushes the sliding gear 302 to move. The second telescopic rod 305 pushes the pressing frame 205 to further press the frame body 7, thereby achieving the effect of further clamping the frame body 7 when flipping the placement base 201.

[0035] The synchronous support mechanism 4 includes a fixed inclined plate 401 fixedly connected to one side of the base 201. A fourth telescopic rod 402 is fixedly connected to the side surface of the fixed inclined plate 401. A fourth spring 403 is sleeved on the outer surface of the fourth telescopic rod 402. A support block 404 is fixedly connected to one side of the fourth telescopic rod 402. A fifth telescopic rod 405 is fixedly connected inside the fixed inclined plate 401. A first inclined block 407 is fixedly connected to the top of the fifth telescopic rod 405. A fifth spring 406 is sleeved on the outer surface of the fifth telescopic rod 405. A push plate 408 is fixedly connected to one side of the first inclined block 407. A second inclined block is fixedly connected to the rear side of the support block 404. 409. A second fixing rod 410 and a first limiting block 411 are fixedly connected to the side surface of the support shell 6. A push spring 412 is sleeved on the outer surface of the second fixing rod 410. A second sliding frame 413 is slidably connected to the outer surface of the second fixing rod 410. A push rod 414 is fixedly connected to one side of the second sliding frame 413. A support block 404 is fixedly connected to the side surface of the fixed inclined plate 401 through a fourth telescopic rod 402. A push plate 408 is slidably connected to the inside of the fixed inclined plate 401. A first inclined block 407 is fixedly connected to the upper surface of the fixed inclined plate 401 through a fifth telescopic rod 405. The push rod 414 presses against the upper surface of the push plate 408.

[0036] Furthermore, when the frame body 7 is flipped, the push plate 408 moves downward, thereby disengaging from the push rod 414. Under the push of the fifth spring 406, the inclined surface of the first inclined block 407 fits against the inclined surface of the second inclined block 409, thereby abutting against the support block 404 during welding, thus preventing the support block 404 from vibrating and causing weld deformation. When the rotating second rotating disk 14 is reset, the push spring 412 pushes the second sliding frame 413 and the push rod 414 inward, thereby continuing to press above the push plate 408.

[0037] The welding cooling mechanism 5 includes a first support rod 501 fixedly connected to the upper surface of the support base 1. A base plate 502 is fixedly connected to the upper end of the first support rod 501. A transverse sliding plate 503 is slidably connected to the upper surface of the base plate 502. A longitudinal sliding plate 504 is slidably connected to the upper surface of the transverse sliding plate 503. A rotating arm 505 is rotatably connected to the upper surface of the longitudinal sliding plate 504. A welding head 506 is fixedly connected to the upper end of the rotating arm 505. A frame 507 is fixedly connected to the lower surface of the base plate 502. A first tilting motor 508 is fixedly connected inside the frame 507. A telescopic rotating rod 509 is fixedly connected to the output shaft of the first tilting motor 508. A first rotating disk 510 is fixedly connected to one end of the telescopic rotating rod 509. A second fixed frame 511 is fixedly connected to one side of the first rotating disk 510. A lifting frame 513 is slidably connected inside the second fixed frame 511. A lifting frame 513 is fixedly connected inside the lifting frame 513. The device includes an electric telescopic rod 512, a bottom clamping block 514 fixedly connected to the bottom end of a lifting frame 513, an upper clamping block 515 rotatably connected to the side surface of the lifting frame 513, a cooling air blowing groove 516 fixedly connected to the side surface of a support shell 6, an air blowing port 517 opened inside the support shell 6, a second limiting block 518 fixedly connected to the upper surface of a base 201, a condenser pipe 519 fixedly connected inside the second limiting block 518, condenser pipes 519 both inside the second limiting block 518 and the support block 404, a third limiting block 20 fixedly connected to the side surface of a second rotating disk 14, a second limiting groove 19 opened on the side surface of the support shell 6, a second support rod 15 fixedly connected to the upper surface of a support base 1, a second tilting motor 16 fixedly connected to the upper end of the second support rod 15, a tilting gear 17 fixedly connected to the output shaft of the second tilting motor 16, and a slot 18 opened on the side surface of the support shell 6.

[0038] Furthermore, the transverse sliding plate 503 moves laterally, the longitudinal sliding plate 504 moves longitudinally, and the rotating arm 505 adjusts the angle to achieve (506) precise alignment; the electric telescopic rod 512 drives the lifting frame 513 to drive the bottom clamping block 514 and the upper clamping block 515 to clamp the workpiece; the cooling air trough 516, the air vent 517, and the condenser pipe 519 provide synchronous cooling; the first flipping motor 508, the telescopic rotating rod 509, and the first rotating disk 510 provide flipping power, while the second flipping motor 16 drives the flipping gear 17 to rotate, driving the second rotating disk 14 to flip, turning the vertical frame into a horizontal welding position, and the slot 18 avoids the movement of the second limiting slot 19 and the third limiting block 20 to achieve flipping limit and positioning, thereby solving the problems of overhead welding at bends and dead angles, poor vertical welding formation, large spatter, and poor fusion.

[0039] Working principle: Before welding, the frame body 7 is inserted into the placement base 201 and the first clamping block 204. Then, the second tilting motor 16 is started and the tilting gear 17 is driven to rotate. The tilting gear 17 drives the second rotating disk 14 to tilt within the support shell 6. The third limiting block 20 on the second rotating disk 14 slides along the second limiting groove 19 on the support shell 6, so that the frame body 7 can be smoothly tilted from a vertical state to a horizontal welding position. The groove 18 provides clearance for the tilting action. During the tilting process of the second rotating disk 14, the first fixing rod 314 on the support shell 6 slides along the first limiting groove 313 in the pull rod 312. When it slides to the limit position, the pull rod... 312 pulls the connecting rod 311 and the pulling rack 307 to move synchronously. The pulling rack 307 meshes with the transmission gear 304, which in turn drives the sliding rack 302 to slide synchronously along the fixed guide rail 301. This causes the second telescopic rod 305 and the second spring 306 to push the clamping frame 205 to move. This, combined with the extension and retraction of the first telescopic rod 202 and the elastic return of the first spring 203, drives the first clamping block 204 to automatically center and clamp the frame body 7 on the placement base 201. While the pulling rack 307 moves, it also pulls the telescopic pulling frame 206 to slide backward. The telescopic pulling frame 206 drives the sliding protective plate 207 and the lifting pressure rod 208 to move synchronously, causing the lifting pressure rod 208 to move backward. 08 and the rubber ramp 211 move to above the frame body 7. Under the action of the extension and retraction of the telescopic rod 209 and the elastic pulling action of the spring 210, the rubber ramp 211 flexibly presses and fixes the upper part of the frame body 7. When the second rotating disk 14 flips, the push plate 408 disengages from the pressing limit of the push rod 414. Under the extension and retraction of the fifth telescopic rod 405 and the elastic pushing action of the fifth spring 406, the first ramp 407 drives the push plate 408 to move and fit against the ramp surface of the second ramp 409, thereby pushing the support block 404 to support and position the auxiliary support frame 8 under the action of the fourth telescopic rod 402 and the fourth spring 403. When the second rotating disk 14 returns to its original position, the push spring 412 pushes the second ramp 408 to move. The moving frame 413 and the push rod 414 are reset, allowing the push rod 414 to press the push plate 408 again to unlock and reset. During welding, the transverse sliding plate 503 moves laterally, the longitudinal sliding plate 504 moves longitudinally, and the angle of the rotating arm 505 is adjusted, driving the welding head 506 to accurately reach the welding position for welding operations at the connection between the frame body 7 and the auxiliary support frame 8. The electric telescopic rod 512 drives the lifting frame 513 to clamp and fix the auxiliary support frame 8 with the bottom clamping block 514 and the upper clamping block 515. During the welding process, the cooling air duct 516, the air outlet 517, and the condenser pipe 519 are activated simultaneously to cool the welding area, reduce welding thermal stress, and suppress workpiece deformation.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A welding device for welding bicycle frames, comprising a support base (1), a frame body (7), and an auxiliary support frame (8), characterized in that: A support shell (6) is fixedly connected to the upper surface of the support base (1). A second rotating disk (14) is rotatably connected inside the support shell (6). An automatic clamping mechanism (2) for automatically clamping the frame body (7) is provided on the side surface of the second rotating disk (14). A synchronous clamping mechanism (3) for synchronously clamping the frame body (7) is provided on one side of the automatic clamping mechanism (2). A synchronous support mechanism (4) for supporting the frame body (7) is provided on the upper surface of the automatic clamping mechanism (2). A welding cooling mechanism (5) for welding the frame body (7) and the auxiliary support frame (8) and for synchronously cooling them during welding is provided on the upper surface of the support base (1).

2. The welding equipment for welding bicycle frames according to claim 1, characterized in that: The automatic clamping mechanism (2) includes a placement base (201) fixedly connected to the side surface of the second rotating disk (14). A first telescopic rod (202) is fixedly connected inside the placement base (201). A first clamping block (204) is fixedly connected to one end of the first telescopic rod (202). A first spring (203) is sleeved on the outer surface of the first telescopic rod (202). A push-pressing frame (205) is fixedly connected to the side surface of the first clamping block (204). The internal sliding connection is a telescopic pull frame (206), the outer surface of the telescopic pull frame (206) is fixedly connected to a sliding protective plate (207), the top of the telescopic pull frame (206) is fixedly connected to a lifting pressure rod (208), the upper surface of the sliding protective plate (207) is fixedly connected to a pulling telescopic rod (209), the outer surface of the pulling telescopic rod (209) is sleeved with a pulling spring (210), and the inner upper surface of the lifting pressure rod (208) is fixedly connected to a rubber inclined plate (211).

3. The welding equipment for welding bicycle frames according to claim 2, characterized in that: The push clamping frame (205) is slidably connected inside the placement base (201), the first spring (203) is disposed between the placement base (201) and the first clamping block (204), the frame body (7) is clamped between the first clamping block (204) and the placement base (201), the sliding protective plate (207) is slidably connected to the upper surface of the placement base (201), and the lifting pressure rod (208) and the sliding protective plate (207) are connected by pulling the telescopic rod (209).

4. The welding equipment for welding bicycle frames according to claim 3, characterized in that: The synchronous clamping mechanism (3) includes a fixed guide rail (301) fixedly connected inside the placement base (201). A sliding toothed rod (302) is slidably connected to the outer surface of the fixed guide rail (301). A first fixed frame (303) is fixedly connected to the inner lower surface of the placement base (201). A transmission gear (304) is rotatably connected inside the first fixed frame (303). A second telescopic rod (305) is fixedly connected to one side of the sliding toothed rod (302). A second spring (306) is sleeved on the outer surface of the second telescopic rod (305). A telescopic pulling frame (206) is fixedly connected to one side of the second telescopic rod (305). A pull rod (307) is connected to a third telescopic rod (308) at one end of the pull rod (307). A third spring (309) is sleeved on the outer surface of the third telescopic rod (308). A first sliding frame (310) is fixedly connected to the lower surface of the base (201). A connecting rod (311) is fixedly connected to one side of the pull rod (307). A pull rod (312) is rotatably connected to the outer surface of the connecting rod (311). A first limiting groove (313) is opened inside the pull rod (312). A first fixing rod (314) is fixedly connected to the side surface of the support shell (6).

5. The welding equipment for welding bicycle frames according to claim 4, characterized in that: The second telescopic rod (305) is located at the front end of the push clamping frame (205). The transmission gear (304) is meshed with the pull rack (307). The transmission gear (304) is meshed with the sliding rack (302). One end of the third telescopic rod (308) is fixedly connected to the inner side surface of the placement base (201). The connecting rod (311) is slidably connected inside the first sliding frame (310). The first fixed rod (314) is slidably connected inside the first limiting groove (313).

6. The welding equipment for welding bicycle frames according to claim 5, characterized in that: The synchronous support mechanism (4) includes a fixed inclined plate (401) fixedly connected to one side of the placement base (201). A fourth telescopic rod (402) is fixedly connected to the side surface of the fixed inclined plate (401). A fourth spring (403) is sleeved on the outer surface of the fourth telescopic rod (402). A support block (404) is fixedly connected to one side of the fourth telescopic rod (402). A fifth telescopic rod (405) is fixedly connected inside the fixed inclined plate (401). A first inclined block (407) is fixedly connected to the top of the fifth telescopic rod (405). The outer surface of the first inclined block (407) is fitted with a fifth spring (406), a push plate (408) is fixedly connected to one side of the first inclined block (407), a second inclined block (409) is fixedly connected to the rear side of the support block (404), a second fixed rod (410) and a first limiting block (411) are fixedly connected to the side surface of the support shell (6), a push spring (412) is fitted on the outer surface of the second fixed rod (410), a second sliding frame (413) is slidably connected to the outer surface of the second fixed rod (410), and a push rod (414) is fixedly connected to one side of the second sliding frame (413).

7. The welding equipment for welding bicycle frames according to claim 6, characterized in that: The support block (404) is fixedly connected to the side surface of the fixed inclined plate (401) by the fourth telescopic rod (402), the push plate (408) is slidably connected to the inside of the fixed inclined plate (401), the first inclined block (407) is fixedly connected to the upper surface of the fixed inclined plate (401) by the fifth telescopic rod (405), and the push rod (414) presses against the upper surface of the push plate (408).

8. The welding equipment for welding bicycle frames according to claim 7, characterized in that: The welding cooling mechanism (5) includes a first support rod (501) fixedly connected to the upper surface of the support base (1). The upper end of the first support rod (501) is fixedly connected to a base plate (502). A transverse sliding bar (503) is slidably connected to the upper surface of the base plate (502). A longitudinal sliding plate (504) is slidably connected to the upper surface of the transverse sliding bar (503). A rotating arm (505) is rotatably connected to the upper surface of the longitudinal sliding plate (504). A welding head (506) is fixedly connected to the upper end of the rotating arm (505). A frame (507) is fixedly connected to the lower surface of the base plate (502). The frame (507) is internally fixed. A first rotating motor (508) is connected to the first rotating motor (508). A telescopic rotating rod (509) is fixedly connected to the output shaft of the first rotating motor (508). A first rotating disk (510) is fixedly connected to one end of the telescopic rotating rod (509). A second fixed frame (511) is fixedly connected to one side of the first rotating disk (510). A lifting frame (513) is slidably connected inside the second fixed frame (511). An electric telescopic rod (512) is fixedly connected inside the lifting frame (513). A bottom clamping block (514) is fixedly connected to the bottom end of the lifting frame (513). An upper clamping block (515) is rotatably connected to the side surface of the lifting frame (513).

9. The welding equipment for welding bicycle frames according to claim 8, characterized in that: The side surface of the support shell (6) is fixedly connected to a cooling air duct (516), and the inside of the support shell (6) is provided with an air vent (517). The upper surface of the placement base (201) is fixedly connected to a second limiting block (518), and the inside of the second limiting block (518) is fixedly connected to a condenser pipe (519). The inside of the second limiting block (518) and the support block (404) are both provided with condenser pipes (519).

10. The welding equipment for welding bicycle frames according to claim 2, characterized in that: A third limiting block (20) is fixedly connected to the side surface of the second rotating disk (14), a second limiting groove (19) is opened on the side surface of the support shell (6), a second support rod (15) is fixedly connected to the upper surface of the support base (1), a second flip motor (16) is fixedly connected to the upper end of the second support rod (15), a flip gear (17) is fixedly connected to the output shaft of the second flip motor (16), and a slot (18) is opened on the side surface of the support shell (6).

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