Bicycle handlebar tube sleeve welding tool and method

Abstract

The invention discloses a bicycle handlebar tube sleeve welding tool and method, and particularly relates to the field of welding equipment.The bicycle handlebar tube sleeve welding tool comprises a supporting station, a positioning mechanism is arranged on the supporting station and comprises a rotating table, a plurality of positioning seats are arranged on the rotating table and form a positioning area, and the positioning area is provided with a plurality of positioning holes; the positioning area is used for supporting the handlebar tube, a first clamping jaw is arranged on the rotating table, and the first clamping jaw enables the end of the sleeve to make contact with the middle of the handlebar tube in the positioning area by clamping the sleeve. The workpiece transferring mechanism is arranged, the two second clamping jaws get close to each other to clamp the workpiece, the transmission wheel rotates to drive the workpiece to rotate along the central axis of the workpiece, the posture of the workpiece is automatically adjusted, then the workpiece is placed in the positioning mechanism to be positioned, the workload of workers is reduced, continuous production is facilitated, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and more specifically to a welding tool and method for a bicycle handlebar tube sleeve. Background Art

[0002] The handlebar sleeve of a bicycle is an important component that connects the front fork and the handlebar of a bicycle. It is usually made of metal and installed in the upper tube of the front fork. It is mainly used to connect and support the handlebar, allowing the height of the handlebar to be adjusted to adapt to different riding postures while ensuring the accuracy and stability of steering. The handlebar sleeve and the handlebar tube are mostly set as round tubes, because the round cross-section provides superior mechanical properties and strength while maintaining a light weight. In order to enhance the structural strength and rigidity between the handlebar sleeve and the handlebar tube, simplify the design and reduce the weight, while providing a neat and beautiful appearance, the handlebar sleeve and the handlebar tube are fixed by welding. In order to disperse stress, enhance structural strength and durability, reduce vibration transmission, and improve riding comfort, the end of the handlebar sleeve connected to the handlebar tube adopts a curved design.

[0003] In the prior art, when welding the handlebar tube and the handlebar tube sleeve, the handlebar tube is first fixed with a jig, and then the handlebar tube sleeve is fixed so that the curved end of the handlebar tube sleeve contacts the handlebar tube, and finally the contact position of the handlebar tube and the handlebar tube sleeve is welded with a welding gun. Since the handlebar tube and the handlebar tube sleeve need to be completely welded along the joint, in order to improve the welding efficiency of the welding gun, the handlebar tube is usually placed horizontally with the arched part of the handlebar tube facing upward, and then the handlebar tube sleeve is fixed vertically (refer to Fig.14 Finally, complete the welding.

[0004] However, the handlebar tube needs to be fixed in the jig in a specific posture. In the prior art, the handlebar tube sleeve and the handlebar tube are fixed in the jig by manual operation. Manual operation increases the workload of the staff, is not conducive to continuous production, and results in low processing efficiency. Summary of the invention

[0005] The present invention provides a bicycle handlebar tube sleeve welding tool and method, and aims to solve the problem that the handlebar tube needs to be fixed in a fixture in a specific posture. In the prior art, the handlebar tube sleeve and the handlebar tube are fixed in the fixture by manual operation. Manual operation increases the workload of the staff, is not conducive to continuous production, and results in low processing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bicycle handlebar tube sleeve welding tool, comprising a supporting station, a positioning mechanism is arranged on the supporting station, the positioning mechanism comprises a rotating table, a plurality of positioning seats are arranged on the rotating table, the plurality of positioning seats form a positioning area, the positioning area is used to support the handlebar tube, a clamping claw 1 is arranged on the rotating table, the clamping claw 1 clamps the sleeve so that the end of the sleeve contacts the middle of the handlebar tube in the positioning area; Two groups of workpiece transfer mechanisms are arranged on the support station, and the workpiece transfer mechanism is used to clamp the handlebar tube and move it vertically downward into the positioning area. The workpiece transfer mechanism is also used to clamp the sleeve so that a pair of sleeves are fixed by the clamping jaws. The workpiece transfer mechanism includes a linear drive 2, and a linear drive 3 is arranged on the output shaft of the linear drive 2. A clamping component is arranged on the output shaft of the linear drive 3. The clamping component includes a pneumatic seat, and two clamping jaws 2 are slidably arranged on the pneumatic seat, and two transmission wheels are rotatably arranged on the clamping jaws 2. The corresponding two clamping jaws 2 are close to each other and clamp the handlebar tube or sleeve through the transmission wheel. The two transmission wheels on the second clamp are vertically arranged, and the handlebar tube and the sleeve are in contact with the corresponding transmission wheels. The transmission wheels drive the handlebar tube and the sleeve to rotate along their own central axes by rotation. A limit rod is rotatably arranged on the pneumatic seat, and the limit rod is used to limit the rotation angle of the handlebar tube or the sleeve.

[0007] In a preferred embodiment, two pulleys 1 are rotatably provided on the clamp 2, and pulleys 2 are fixedly provided on both transmission wheels. The edge circumferences of pulleys 1 and 2 are equal, and the same belt is connected for transmission between pulleys 1 and 2.

[0008] In a preferred embodiment, an adapting and adjusting component is provided on the second clamp, and the adapting and adjusting component is used to drive the transmission wheel to always fit tightly with the handlebar tube or sleeve, so that the transmission wheel drives the handlebar tube or sleeve to rotate along its own central axis at a specified angle by rotation, that is, the handlebar tube and the sleeve are in a posture to be welded when they fit together.

[0009] In a preferred embodiment, the adapter and adjustment component is configured as an adapter unit 1, which includes an auxiliary seat, a transmission wheel is rotatably disposed on the auxiliary seat, a guide seat is fixedly disposed on clamp 2, the auxiliary seat is slidably disposed in the guide seat, and the same elastic member is disposed between the auxiliary seat and the inner wall of the guide seat.

[0010] In a preferred embodiment, the adapter adjustment component is configured as an adapter unit 2, which includes a stabilizing seat, which is rotatably disposed on the clamp 2, and which performs circular motion along the central axis of the pulley 1. A linear drive 5 is fixedly disposed on the clamp 2, and a connecting shaft is fixedly disposed on the output shaft of the linear drive 5, and the connecting shaft is movably disposed with the stabilizing seat.

[0011] In a preferred embodiment, the adaptation and adjustment component is configured as adaptation unit three, and adaptation unit three includes a flexible ring, which is used to be mounted on the handlebar tube and the sleeve, and a hard outer jacket is fixedly mounted on the outer side of the flexible ring, and an external tooth one is fixedly mounted on the outer side of the hard outer jacket, and an external tooth two is fixedly mounted on the transmission wheel, and the external tooth one is meshed with the external tooth two.

[0012] In a preferred embodiment, the rotating table is rotatably arranged on the supporting station, and the positioning mechanism also includes a linear drive 1, which is fixedly arranged on the rotating table, a rotating drive 1 is fixedly arranged on the output end of the linear drive 1, an auxiliary rod is fixedly arranged on the output shaft of the rotating drive 1, and a clamp 1 is arranged at the end of the auxiliary rod.

[0013] In a preferred embodiment, the workpiece transfer mechanism further includes a second rotary drive, the second rotary drive is fixedly disposed on the supporting station, and the second linear drive is fixedly disposed on the output end of the second rotary drive.

[0014] In a preferred embodiment, a connecting seat is rotatably provided on linear drive three, a rotating drive three is fixedly provided on the connecting seat, a stabilizing frame is fixedly provided on the output shaft of rotating drive three, a pneumatic seat is fixedly provided on the stabilizing frame, a linear drive four is rotatably provided on linear drive three, and the output shaft of linear drive four is rotatably provided with the stabilizing frame.

[0015] A welding method for a bicycle handlebar tube sleeve welding tool comprises the following steps: Step 1: The pneumatic seat moves to the top of the sleeve so that the sleeve is located between the two clamping jaws 2, and the two corresponding clamping jaws 2 approach each other to clamp the sleeve through the transmission wheel; Step 2: The transmission wheel rotates the transmission sleeve along its own central axis to adjust the posture of the sleeve, and the posture of the sleeve is limited by the limiting rod; Step 3: When the pneumatic seat moves to the top of the positioning seat, the output shaft of the linear actuator 2 drives the clamping jaw 2 to move vertically downward to place the sleeve into the positioning area; Step 4: The pneumatic seat is moved to the top of the handlebar tube so that the handlebar tube is located between the two clamping jaws 2, and the two corresponding clamping jaws 2 are close to each other to clamp the handlebar tube through the transmission wheel; Step 5: The second clamping jaw holds the handlebar tube and moves it to the top of the positioning seat, then the first clamping jaw holds the handlebar tube, and the second clamping jaw releases the clamping of the handlebar tube. At this time, the bottom end of the handlebar tube contacts the middle part of the sleeve, and then the contact position of the handlebar tube and the sleeve is welded.

[0016] The beneficial effects of the present invention are: 1. The present invention sets a workpiece transfer mechanism, wherein two clamping jaws are close to each other to clamp the workpiece, and the workpiece is driven to rotate along its own central axis by rotating the transmission wheel, and the posture of the workpiece is automatically adjusted. Then, the workpiece is placed in the positioning mechanism for positioning, thereby reducing the workload of the staff, facilitating continuous production, and improving processing efficiency.

[0017] 2. The present invention provides an adaptive adjustment component to transport and transfer the elliptical workpiece, and can adaptively adjust the position of the transmission wheel so that the transmission wheel always fits tightly with the outer surface of the elliptical workpiece, thereby driving the elliptical workpiece to rotate and achieve the effect of adjusting the posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the support station of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the support station of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating table of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment seat of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the front view of the mounting frame of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the front view of the pneumatic seat of the present invention.

[0024] Figure 7 It is a schematic structural diagram of the pneumatic seat from the side of the present invention.

[0025] Figure 8 It is a structural schematic diagram of the guide seat of the present invention from the front view.

[0026] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure of part A.

[0027] Fig.10 It is a schematic diagram of the structure of the sleeve rotation trajectory change of the present invention.

[0028] Fig.11 It is a structural schematic diagram of the main view of the stabilizing seat of the present invention.

[0029] Fig.12 It is a schematic structural diagram of the front view of the flexible sleeve of the present invention.

[0030] Fig.13 It is a schematic diagram of the three-dimensional structure of the handlebar tube and the sleeve of the present invention.

[0031] Fig.14 It is a schematic diagram of the posture structure of the handlebar tube and the sleeve when being welded in the present invention.

[0032] Fig.15 It is a schematic diagram of the process of the welding method of the present invention.

[0033] The reference numerals are: 1, support station; 2, positioning mechanism; 21, rotating table; 22, positioning seat; 23, linear drive 1; 24, rotating drive 1; 25, clamping jaw 1; 3, workpiece transfer mechanism; 31, rotating drive 2; 32, linear drive 2; 33, moving seat; 34, linear drive 3; 35, linear drive 4; 36, rotating drive 3; 37, clamping component; 371, pneumatic seat; 372, clamping jaw 2; 37 3. Transmission wheel; 374. Limit rod; 41. Adapter unit one; 411. Auxiliary seat; 412. Guide seat; 413. Elastic member; 42. Adapter unit two; 421. Stable seat; 422. Linear drive five; 423. Connecting shaft; 43. Adapter unit three; 431. Flexible collar; 432. Hard jacket; 433. External tooth one; 434. External tooth two; 5. Workpiece conveyor line; 6. Robot arm welder; a. Handlebar tube; b. Sleeve. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0035] Refer to the instruction manual Figures 1 to 7 and Fig.14 A bicycle handlebar tube sleeve welding tool comprises a supporting station 1, a positioning mechanism 2 is arranged on the supporting station 1, the positioning mechanism 2 comprises a rotating platform 21, a plurality of positioning seats 22 are arranged on the rotating platform 21, the plurality of positioning seats 22 form a positioning area, the positioning area is used to support a handlebar tube a, a clamping claw 25 is arranged on the rotating platform 21, the clamping claw 25 clamps the sleeve b so that the end of the sleeve b contacts the middle of the handlebar tube a in the positioning area; Two groups of workpiece transfer mechanisms 3 are arranged on the support station 1. The workpiece transfer mechanism 3 is used to clamp the handlebar tube a and move it vertically downward into the positioning area. The workpiece transfer mechanism 3 is also used to clamp the sleeve b so that the clamping jaw 25 fixes the sleeve b. The workpiece transfer mechanism 3 includes a linear drive 2 32. A linear drive 3 34 is arranged on the output shaft of the linear drive 2 32. A clamping component 37 is arranged on the output shaft of the linear drive 3 34. The clamping component 37 includes a pneumatic seat 371. Two clamping jaws 2 372 are slidably arranged on the pneumatic seat 371. Two transmission wheels 373 are rotatably arranged on the clamping jaws 2 372. The corresponding two clamping jaws 2 372 are close to each other and clamp the handlebar tube a or the sleeve b through the transmission wheel 373. The two transmission wheels 373 on the second clamp 372 are vertically arranged, and the handlebar tube a and the sleeve b are in contact with the corresponding transmission wheels 373. The transmission wheel 373 drives the handlebar tube a and the sleeve b to rotate along their own central axes by rotation. A limit rod 374 is rotatably arranged on the pneumatic seat 371, and the limit rod 374 is used to limit the rotation angle of the handlebar tube a or the sleeve b.

[0036] Two pulleys 1 are rotatably arranged on the second clamping jaw 372, and pulleys 2 are fixedly arranged on the two transmission wheels 373. The edge circumferences of pulleys 1 and 2 are equal, and the same belt is connected to the pulleys 1 and 2. A motor is fixedly arranged on the second clamping jaw 372, and the output shaft of the motor is fixedly arranged on the pulley 1. Only one driving source is arranged on the second clamping jaw 372 to drive the two second clamping jaws 372 to rotate synchronously.

[0037] It should be noted that a robot arm welder 6 and two workpiece conveyor lines 5 are arranged next to the support station 1. The support station 1 is located between the workpiece conveyor line 5 and the robot arm welder 6. The workpiece conveyor line 5 is arranged as a belt conveyor line. The two workpiece conveyor lines 5 are used to convey the handlebar tube a and the sleeve b respectively. The two sides of the conveyor belt in the workpiece conveyor line 5 are provided with limit baffles. The handlebar tube a and the sleeve b conveyed by the workpiece conveyor line 5 refer to Figure 2 In the conveying state, a limit seat is set at the end of the workpiece conveying line 5 in the conveying direction, and the limit seat is used to limit the handlebar tube a and the sleeve b during conveying, so that the conveying posture and position of the handlebar tube a and the sleeve b conveyed each time are the same; the robotic arm welder 6 is set as a robotic arm, and a welding gun is fixedly set on the end effector of the robotic arm. The robotic arm drives the welding gun to weld the contact point of the handlebar tube a and the sleeve b. The workpiece conveying line 5 and the robotic arm welder 6 are both mature existing technologies and will not be repeated here.

[0038] It should also be noted that there are multiple positioning seats 22, and multiple positioning seats 22 are placed in sequence to form a positioning area. After the handlebar tube a is located in the positioning area, the positioning seat 22 is set along the edge of the handlebar tube a to limit the edge of the handlebar tube a. When the handlebar tube a is placed in the limiting area, it can play a good positioning role for the handlebar tube a to avoid the angle of the handlebar tube a from being offset. The pneumatic seat 371 is fixedly connected with an air pipe, and one end of the air pipe away from the pneumatic seat 371 is fixedly connected with an air pump. The air pump is the air source of the pneumatic seat 371, and the sliding of the clamp 2 372 is regulated by the air pump. A motor is fixedly set on the pneumatic seat 371, and the limiting rod 374 is fixedly set on the output shaft of the motor.

[0039] The specific implementation scenario is: refer to Figure 1 and Figure 2 , the two workpiece conveying lines 5 convey the handlebar tube a and the sleeve b respectively, and the two groups of workpiece transfer mechanisms 3 clamp the handlebar tube a and the sleeve b respectively. First, the pneumatic seat 371 moves to the top of the handlebar tube a in the workpiece conveying line 5. When the handlebar tube a is located in the middle of the two clamping jaws 2 372, the pneumatic seat 371 is driven to move downward so that the handlebar tube a is located between the corresponding four transmission wheels 373, and then the two clamping jaws 2 372 are driven to approach each other, and the handlebar tube a is positioned by the transmission wheel 373, and then the pneumatic seat 371 is driven to move to the top of the positioning seat 22. During the movement of the pneumatic seat 371, the motor is first started, and the rotation of the motor output shaft drives the limit rod 374 to rotate. Figure 7 When the limit rod 374 rotates to the specified position, the transmission wheel 373 is driven to rotate. The four transmission wheels 373 rotate synchronously to drive the handlebar tube a to make a circular motion along its own central axis. When the handlebar tube a rotates and contacts the limit rod 374, it means that the handlebar tube a is in the initial default posture at this time, and then the transmission wheel 373 is driven to rotate in the opposite direction. The reverse rotation of the transmission wheel 373 can drive the handlebar tube a to rotate in the opposite direction. After the transmission wheel 373 rotates a specified number of times, the posture of the handlebar tube a is also adjusted. When the handlebar tube a is located directly above the positioning seat 22, the pneumatic seat 371 is driven to move vertically downward. The downward movement of the pneumatic seat 371 accurately places the handlebar tube a clamped by the second clamp 372 into the positioning area, and the positioning The positioning area formed by the seat 22 positions the handlebar tube a, and then the sleeve b is clamped by the second clamp 372 in another group of workpiece transfer mechanisms 3. After the second clamp 372 clamps the sleeve b, the posture of the sleeve b is adjusted by the rotation of the transmission wheel 373. When the posture adjustment of the sleeve b is completed, the second clamp 372 moves the sleeve b to the top of the handlebar tube a, so that the bottom end of the sleeve b contacts the handlebar tube a. At this time, the sleeve b and the handlebar tube a are in a posture to be welded, and then the first clamp 25 is driven to clamp the sleeve b to position the sleeve b. When the first clamp 25 positions the sleeve b, the second clamp 372 releases the clamp on the sleeve b, and finally the handlebar tube a and the sleeve b are welded by the robotic arm welder 6.

[0040] Refer to the instruction manual Figures 8 to 10 In order to provide better aerodynamic performance, reduce wind resistance, enhance rigidity in a specific direction, improve handling stability, optimize weight distribution and reduce material usage, improve grip comfort, and add a unique aesthetic style to the bicycle, the handlebar tube a and the sleeve b will adopt an elliptical design. The handlebar tube a and the sleeve b made of the elliptical design have different distances from the arc-shaped side to the central axis, which makes it impossible to adjust the posture of the handlebar tube a and the sleeve b for welding through the above-mentioned driving method. In order to solve this problem, specifically, an adaptation and adjustment component is provided on the second clamp 372. The adaptation and adjustment component is used to drive the transmission wheel 373 to always fit closely with the handlebar tube a or the sleeve b, so that the transmission wheel 373 drives the handlebar tube a or the sleeve b to rotate along its own central axis by a specified angle by rotation, that is, the handlebar tube a and the sleeve b are in a posture to be welded when they are fitted. The adapting and adjusting component is configured as an adapting unit 41, which includes an auxiliary seat 411, on which the transmission wheel 373 is rotatably disposed, and a guide seat 412 is fixedly disposed on the second clamp 372, and the auxiliary seat 411 is slidably disposed in the guide seat 412, and between the inner walls of the auxiliary seat 411 and the guide seat 412, an elastic member 413 is disposed.

[0041] It should be noted that the elastic member 413 is configured as a spring, one end of the spring is fixedly disposed on the auxiliary seat 411, and one end of the elastic member 413 away from the auxiliary seat 411 is fixedly disposed on the guide seat 412. When the auxiliary seat 411 slides within the arc angle of the guide seat 412, the distance from the central axis of the transmission wheel 373 to the line segment formed by the central axes of the two pulleys is equal.

[0042] It should also be noted that when the handlebar tube a or the sleeve b is an elliptical pipe, the distance from the elliptical arc side to the central axis is different. When the transmission wheel 373 transmits the elliptical workpiece, under the action of the elastic force of the elastic member 413, the position of the transmission wheel 373 can be automatically adjusted according to the side of the elliptical shape, ensuring that the transmission wheel 373 can always fit closely with the side of the ellipse, thereby ensuring the effect of adjusting the posture of the elliptical handlebar tube a and the sleeve b.

[0043] Furthermore, the position of the transmission wheel 373 is adjusted by the elastic force of the elastic member 413, and the elliptical handlebar tube a and the sleeve b are positioned in cooperation with the limit rod 374. First, the handlebar tube a and the sleeve b are rotated to adjust to the specified initial posture, and then the handlebar tube a and the sleeve b are driven to rotate in the opposite direction to adjust to the final posture. The limit rod 374 can also be driven to rotate again to limit the final posture position of the handlebar tube a and the sleeve b, thereby realizing the dual limitation of the initial posture and the final posture of the handlebar tube a and the sleeve b, and further improving the accuracy of adjusting the final posture of the handlebar tube a and the sleeve b.

[0044] Refer to the instruction manual Fig.11, which is different from the above-mentioned solution in which the elastic member 413 is used to adjust the position of the transmission wheel 373, since the position adjustment of the transmission wheel 373 is completely dependent on the elasticity of the elastic member 413, this will cause the transmission wheel 373 to generate different forces when contacting the edges of the elliptical handlebar tube a and the sleeve b, resulting in the inability to adjust the handlebar tube a and the sleeve b to the desired posture after the transmission wheel 373 rotates a specified number of times. In order to solve this problem, specifically, the adaptation and adjustment component is configured as an adaptation unit 2 42, and the adaptation unit 2 42 includes a stabilizing seat 421, which is rotatably disposed on the clamp 2 372, and the stabilizing seat 421 makes a circular motion along the central axis of the pulley 1, and a linear drive 5 422 is fixedly disposed on the clamp 2 372, and a connecting shaft 423 is fixedly disposed on the output shaft of the linear drive 5 422, and the connecting shaft 423 and the stabilizing seat 421 are movably disposed.

[0045] It should be noted that the outer side of the transmission wheel 373 is provided with anti-skid rubber for increasing friction. The linear drive 422 is configured as a cylinder, a rectangular hole is provided on the stabilizing seat 421, and the connecting shaft 423 is movably disposed in the rectangular hole.

[0046] It should also be noted that the stabilizing seat 421 rotates along the central axis of the pulley 1, and the two stabilizing seats 421 located on the same clamp 2 372 have different horizontal heights, so there will be no interference between the two stabilizing seats 421 located on the same clamp 2 372. When the rotation of the transmission wheel 373 drives the elliptical handlebar tube a and the sleeve b to rotate, the linear driver 5 422 is started, and the movement of the output shaft of the linear driver 5 422 drives the stabilizing seat 421 to rotate along the central axis of the pulley 1, thereby achieving the effect of adjusting the position between the transmission wheel 373 and the arc-shaped side edges of the elliptical handlebar tube a and the sleeve b, ensuring that the transmission wheel 373 always applies the same pressure to the side edges of the handlebar tube a and the sleeve b, and preventing the occurrence of "slipping".

[0047] Furthermore, the position of the transmission wheel 373 is adjusted by moving the output shaft of the linear drive 5 422, and the elliptical handlebar tube a and the sleeve b are positioned in cooperation with the limit rod 374. First, the handlebar tube a and the sleeve b are rotated and adjusted to a specified initial posture, and then the handlebar tube a and the sleeve b are driven to rotate in the opposite direction and adjusted to a final posture. The limit rod 374 can also be driven to rotate again to limit the final posture position of the handlebar tube a and the sleeve b, thereby realizing dual limiting of the initial posture and final posture of the handlebar tube a and the sleeve b, and further improving the accuracy of adjusting the final posture of the handlebar tube a and the sleeve b.

[0048] Refer to the instruction manual Fig.12, which is different from the above technical solution in that the driving transmission wheel 373 generates displacement and then transmits the elliptical handlebar tube a and the sleeve b to adjust the posture, specifically, the adaptation and adjustment component is set as the adaptation unit three 43, and the adaptation unit three 43 includes a flexible sleeve 431, and the flexible sleeve 431 is used to be sleeved on the handlebar tube a and the sleeve b. The outer side of the flexible sleeve 431 is fixedly sleeved with a hard jacket 432, and the outer side of the hard jacket 432 is fixedly provided with an outer tooth one 433, and the transmission wheel 373 is fixedly provided with an outer tooth two 434, and the outer tooth one 433 is meshed with the outer tooth two 434.

[0049] It should be noted that the flexible collar 431 is made of a flexible filling material, and the hard jacket 432 is made of a hard material. The flexible collar 431 is sleeved on the elliptical handlebar tube a and the sleeve b, and the outer surface of the hard jacket 432 is still circular, and then the driving wheel 373 is driven to rotate, and the outer tooth 1 433 is meshed with the outer tooth 2 434, so as to achieve the effect of accurately controlling the posture of the elliptical handlebar tube a and the sleeve b.

[0050] It should also be noted that the outer surfaces of the elliptical handlebar tube a and the sleeve b are filled and adjusted by the external teeth 433, so that the elliptical outer surface becomes circular, thereby completing the adjustment of the posture of the handlebar tube a and the sleeve b, and cooperating with the limit rod 374 to position the elliptical handlebar tube a and the sleeve b. First, the handlebar tube a and the sleeve b are rotated and adjusted to the specified initial posture, and then the handlebar tube a and the sleeve b are driven to rotate in the opposite direction to adjust to the final posture. The limit rod 374 can also be driven to rotate again to limit the final posture position of the handlebar tube a and the sleeve b, thereby realizing the dual limitation of the initial posture and the final posture of the handlebar tube a and the sleeve b, and further improving the accuracy of adjusting the final posture of the handlebar tube a and the sleeve b.

[0051] Refer to the instruction manual Figures 1 to 3 In order to improve the welding efficiency of the handlebar tube a and the sleeve b, specifically, the rotating table 21 is rotatably set on the supporting station 1, and the positioning mechanism 2 also includes a linear driver 23, which is fixedly set on the rotating table 21, and a rotating driver 24 is fixedly set on the output end of the linear driver 23, and an auxiliary rod is fixedly set on the output shaft of the rotating driver 24, and a clamp 25 is set at the end of the auxiliary rod.

[0052] It should be noted that the clamping jaw 25 is configured as a linear motor, the rotating driver 24 is configured as a motor, the rotating driver 24 is fixedly disposed at the output end of the clamping jaw 25, the auxiliary rod is fixedly disposed on the output shaft of the motor, the end of the auxiliary rod away from the rotating driver 24 is fixedly disposed with a pneumatic seat, and the clamping jaw 25 is slidably disposed on the pneumatic seat. A motor is fixedly disposed in the support station 1, and the output shaft of the motor is fixedly disposed on the rotating table 21.

[0053] It should also be noted that, when the handlebar tube a is located in the positioning area, and the clamp 2 372 clamps the sleeve b and is located above the handlebar tube a in a specific posture, the bottom end of the sleeve b is in contact with the handlebar tube a, and the clamp 25 is started at this time. The movement of the output shaft of the clamp 25 drives the rotating driver 24 to move toward the positioning seat 22, and then the rotating driver 24 is started. The rotation transmission auxiliary rod of the output shaft of the rotating driver 24 rotates, and the auxiliary rod drives the clamp 25 to rotate, and then drives the clamp 25 to clamp and fix the sleeve b, and finally the handlebar tube a and the sleeve b are welded by the robot arm welder 6. During the welding process, the rotating table 21 can be driven to rotate, thereby further improving the welding efficiency of the robot arm welder 6 on the handlebar tube a and the sleeve b.

[0054] Refer to the instruction manual Figures 1 to 5 In order to facilitate the driving of the handlebar tube a and the sleeve b to move, specifically, the workpiece transfer mechanism 3 further includes a second rotary driver 31, which is fixedly arranged on the support station 1, and a second linear driver 32 is fixedly arranged on the output end of the second rotary driver 31. A connecting seat is rotatably arranged on the third linear driver 34, a third rotary driver 36 is fixedly arranged on the connecting seat, a stabilizing frame is fixedly arranged on the output shaft of the third rotary driver 36, a pneumatic seat 371 is fixedly arranged on the stabilizing frame, a fourth linear driver 35 is rotatably arranged on the third linear driver 34, and the output shaft of the fourth linear driver 35 is rotatably arranged with the stabilizing frame.

[0055] It should be noted that the rotary driver 2 31 is configured as a base and a motor, the base is fixedly arranged on the support station 1, the motor is fixedly arranged in the base, and the linear driver 2 32 is fixedly arranged with the output shaft of the motor. The linear driver 2 32 is fixedly arranged with a motor, and the linear driver 2 32 is rotatably arranged with two auxiliary wheels, and the same auxiliary belt is connected to the two auxiliary wheels for transmission, and a moving seat 33 is fixedly arranged on the auxiliary belt, and the moving seat 33 is slidably arranged on the linear driver 2 32, and the linear driver 3 34 is slidably arranged on the moving seat 33, the linear driver 4 35 is configured as a cylinder, and the rotary driver 3 36 is configured as a motor. The principle of driving the linear driver 3 34 to move on the moving seat 33 is the same as the principle of driving the moving seat 33 to move on the linear driver 2 32.

[0056] It should also be noted that, by starting the rotating driver 2 31, the rotating driver 2 31 can drive the linear driver 2 32 to rotate, and the movement of the output shaft of the linear driver 2 32 drives the moving seat 33 to move vertically. By starting the motor, the linear driver 34 moves horizontally on the moving seat 33. By starting the rotating driver 36, the output shaft of the rotating driver 36 can drive the pneumatic seat 371 to rotate along the central axis of its output shaft. By starting the linear driver 4 35, the output shaft of the linear driver 4 35 can drive the pneumatic seat 371 to tilt and swing.

[0057] Refer to the instruction manual Fig.15 A welding method for a bicycle handlebar tube sleeve welding tool comprises the following steps: Step 1: The pneumatic seat 371 moves to the top of the sleeve b so that the sleeve b is located between the two second clamping jaws 372, and the two corresponding second clamping jaws 372 approach each other to clamp the sleeve b through the transmission wheel 373; Step 2: The transmission wheel 373 rotates the transmission sleeve b along its own central axis to adjust the posture of the sleeve b, and the posture of the sleeve b is limited by the limiting rod 374; Step 3: When the pneumatic seat 371 moves to the top of the positioning seat 22, the output shaft of the linear drive 2 32 drives the second clamping jaw 372 to move vertically downward to place the sleeve b into the positioning area; Step 4: The pneumatic seat 371 moves to the top of the handlebar tube a so that the handlebar tube a is located between the two second clamping jaws 372, and the two corresponding second clamping jaws 372 approach each other to clamp the handlebar tube a through the transmission wheel 373; Step 5: The second clamping jaw 372 clamps the handlebar tube a and moves it to the top of the positioning seat 22, and then the first clamping jaw 25 clamps the handlebar tube a, and the second clamping jaw 372 releases the clamping of the handlebar tube a. At this time, the bottom end of the handlebar tube a contacts the middle part of the sleeve b, and then the contact position of the handlebar tube a and the sleeve b is welded.

[0058] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A bicycle handlebar sleeve welding tool, characterized in that: The invention comprises a supporting station (1), wherein the supporting station (1) is provided with a positioning mechanism (2), wherein the positioning mechanism (2) comprises a rotating platform (21), wherein a plurality of positioning seats (22) are provided on the rotating platform (21), wherein the plurality of positioning seats (22) form a positioning area, wherein the positioning area is used to support a handlebar tube (a), wherein a clamping claw 1 (25) is provided on the rotating platform (21), wherein the clamping claw 1 (25) clamps a sleeve tube (b) so that an end of the sleeve tube (b) contacts the middle of the handlebar tube (a) in the positioning area; The support station (1) is provided with two sets of workpiece transfer mechanisms (3), the workpiece transfer mechanisms (3) comprising a second linear drive (32), a third linear drive (34) being provided on the output shaft of the second linear drive (32), and a clamping component (37) being provided on the output shaft of the third linear drive (34); The clamping component (37) comprises a pneumatic seat (371), two second clamping jaws (372) are slidably provided on the pneumatic seat (371), two transmission wheels (373) are rotatably provided on the second clamping jaws (372), the handlebar tube (a) and the sleeve (b) are both in contact with the corresponding transmission wheels (373), the transmission wheels (373) drive the handlebar tube (a) and the sleeve (b) to rotate along their own central axes by rotation, and a limiting rod (374) is rotatably provided on the pneumatic seat (371), and the limiting rod (374) is used to limit the rotation angle of the handlebar tube (a) or the sleeve (b).

2. A bicycle handlebar tube sleeve welding tool according to claim 1, characterized in that: Two pulleys 1 are rotatably arranged on the second clamping jaw (372), and pulleys 2 are fixedly arranged on the two transmission wheels (373). The edge circumferences of the pulleys 1 and 2 are equal, and the pulleys 1 and 2 are connected to each other through the same belt.

3. A bicycle handlebar tube sleeve welding tool according to claim 2, characterized in that: The second clamping jaw (372) is provided with an adapting and adjusting component, which is used to drive the transmission wheel (373) to always fit tightly with the handlebar tube (a) or the sleeve (b), so that the transmission wheel (373) drives the handlebar tube (a) or the sleeve (b) to rotate along its own central axis at a specified angle, that is, the handlebar tube (a) and the sleeve (b) are in a posture to be welded when they fit together.

4. A bicycle handlebar tube sleeve welding tool according to claim 3, characterized in that: The adapting and adjusting component is configured as an adapting unit 1 (41), the adapting unit 1 (41) comprising an auxiliary seat (411), the transmission wheel (373) being rotatably disposed on the auxiliary seat (411), a guide seat (412) being fixedly disposed on the clamping jaw 2 (372), the auxiliary seat (411) being slidably disposed in the guide seat (412), and a common elastic member (413) being disposed between the inner wall of the auxiliary seat (411) and the guide seat (412).

5. The bicycle handlebar sleeve welding tool according to claim 3, characterized in that: The adapting and adjusting component is configured as an adapting unit 2 (42), and the adapting unit 2 (42) comprises a stabilizing seat (421), and the stabilizing seat (421) is rotatably disposed on the clamping jaw 2 (372), and the stabilizing seat (421) performs a circular motion along the central axis of the pulley 1, and a linear drive 5 (422) is fixedly disposed on the clamping jaw 2 (372), and a connecting shaft (423) is fixedly disposed on the output shaft of the linear drive 5 (422), and the connecting shaft (423) and the stabilizing seat (421) are movably disposed.

6. The bicycle handlebar sleeve welding tool according to claim 3, characterized in that: The adapting and adjusting component is configured as an adapting unit three (43), wherein the adapting unit three (43) comprises a flexible sleeve (431), wherein the flexible sleeve (431) is used to be sleeved on the handlebar tube (a) and the sleeve (b), wherein a hard outer jacket (432) is fixedly sleeved on the outer side of the flexible sleeve (431), wherein an outer tooth one (433) is fixedly disposed on the outer side of the hard outer jacket (432), and an outer tooth two (434) is fixedly disposed on the transmission wheel (373), wherein the outer tooth one (433) meshes with the outer tooth two (434).

7. A bicycle handlebar tube sleeve welding tool according to claim 6, characterized in that: The rotating table (21) is rotatably mounted on the supporting station (1); the positioning mechanism (2) further comprises a linear drive 1 (23); the linear drive 1 (23) is fixedly mounted on the rotating table (21); a rotary drive 1 (24) is fixedly mounted on the output end of the linear drive 1 (23); an auxiliary rod is fixedly mounted on the output shaft of the rotary drive 1 (24); and the clamp 1 (25) is mounted on the end of the auxiliary rod.

8. The bicycle handlebar sleeve welding tool according to claim 7, characterized in that: The workpiece transfer mechanism (3) further comprises a second rotary driver (31), wherein the second rotary driver (31) is fixedly arranged on the support station (1), and the second linear driver (32) is fixedly arranged on the output end of the second rotary driver (31).

9. A bicycle handlebar tube sleeve welding tool according to claim 8, characterized in that: A connecting seat is rotatably arranged on the linear drive three (34), a rotating drive three (36) is fixedly arranged on the connecting seat, a stabilizing frame is fixedly arranged on the output shaft of the rotating drive three (36), the pneumatic seat (371) is fixedly arranged on the stabilizing frame, a linear drive four (35) is rotatably arranged on the linear drive three (34), and the output shaft of the linear drive four (35) is rotatably arranged with the stabilizing frame.

10. A welding method for a bicycle handlebar tube sleeve welding tool as claimed in claim 9, characterized in that: The following steps are involved: Step 1: The pneumatic seat (371) moves to the top of the sleeve (b) so that the sleeve (b) is located between the two second clamping jaws (372), and the two corresponding second clamping jaws (372) are close to each other to clamp the sleeve (b) through the transmission wheel (373); Step 2: The transmission wheel (373) rotates the transmission sleeve (b) along its own central axis to adjust the posture of the sleeve (b), and the posture of the sleeve (b) is limited by the limiting rod (374); Step 3: When the pneumatic seat (371) moves to the top of the positioning seat (22), the output shaft of the second linear drive (32) drives the second clamping jaw (372) to move vertically downward to place the sleeve (b) into the positioning area; Step 4: The pneumatic seat (371) moves to the top of the handlebar tube (a) so that the handlebar tube (a) is located between the two second clamping jaws (372), and the two corresponding second clamping jaws (372) are close to each other to clamp the handlebar tube (a) through the transmission wheel (373); Step 5: The second clamping jaw (372) clamps the handlebar tube (a) and moves it to the top of the positioning seat (22), and then the first clamping jaw (25) clamps the handlebar tube (a), and the second clamping jaw (372) releases the clamping of the handlebar tube (a). At this time, the bottom end of the handlebar tube (a) contacts the middle part of the sleeve (b), and then the contact position between the handlebar tube (a) and the sleeve (b) is welded.

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