Welding fixture for motorcycle handle

Abstract

The invention discloses a welding fixture for motorcycle handles, and belongs to the technical field of motorcycle handle machining, the welding fixture comprises a main box body, two oppositely arranged rotating shafts are arranged on the main box body, and a driving mechanism is arranged in the main box body; the fastening clamping piece is fixedly connected to the end of one rotating shaft, the two second supporting plates are jointly and fixedly connected with the other rotating shaft, the first supporting plate is located between the fastening clamping piece and the second supporting plates, and the first supporting plate is fixedly connected with the main box body; the second supporting plate is used for bearing the end of a motorcycle grab rail, the first supporting plate is used for bearing a motorcycle main rod, and the fastening clamping piece is used for locking the motorcycle main rod. When the welding device is applied, the welding work on the circumference of the joint of the main rod and the grab rail can be conveniently carried out in one direction, and the welding operation of the locking plate, the connecting piece and the connecting rod can be conveniently carried out on one side face; and adjustment and butt joint of the main rod and the grab rail can be automatically completed, the welding quality of the main rod and the grab rail can be improved, and the production efficiency can be improved.

Description

Technical Field

[0001] The invention mainly relates to the technical field of motorcycle handlebar processing, in particular to a welding fixture for motorcycle handlebars. Background Art

[0002] The motorcycle handlebar is an important part for controlling the direction of the motorcycle. The motorcycle handlebar includes a main rod for connecting the tire assembly, a handrail for the driver to hold, a locking plate for locking plastic parts, a connecting piece and a connecting rod for connection. Among them, the main rod and the handrail need to be positioned and fixed by a welding fixture during welding.

[0003] At present, a welding fixture for motorcycle handlebars is disclosed in a patent with application publication number CN 117444510 A. The welding fixture is provided with a mounting seat for the main rod to be plugged in, and a latch is provided for locking the main rod; at the same time, two first fixed seats are provided for placing the ends of the handrail rod, and a fixing piece is provided for pressing the handrail rod, which can effectively limit the self-movement and relative movement of the main rod and the handrail rod, thereby facilitating improving the welding quality between the main rod and the handrail rod. However, when the subsequent welding work is performed, the main rod and the handrail rod are in a vertical state, and the positions of the two are fixed. The welding head needs to move around the side of the welding connection between the main rod and the handrail rod to achieve welding, and when the locking plate, the connecting piece and the connecting rod are subsequently welded, it is also necessary to perform the welding on different surfaces of the main rod and the handrail rod, which makes the welding work of the motorcycle handlebars inconvenient. Summary of the invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. It mainly provides a welding fixture for motorcycle handlebars to solve the technical problem that the welding work of motorcycle handlebars is relatively inconvenient mentioned in the above background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: A welding fixture for motorcycle handlebars, comprising a main housing and a fastening clamp, a first support plate and two second support plates installed on the main housing, wherein the main housing is provided with two oppositely arranged rotating shafts, and the main housing is provided with a driving mechanism for driving the two rotating shafts to rotate synchronously in the same direction; the fastening clamp is fixedly connected to the end of one of the rotating shafts, and the two second support plates are commonly fixedly connected to the other rotating shaft, the first support plate is located between the fastening clamp and the second support plate, and the first support plate is fixedly connected to the main housing; the second support plate is used to support the end of a motorcycle handrail, the first support plate is used to support a motorcycle main rod, and the fastening clamp is used to lock the motorcycle main rod.

[0006] Furthermore, a fastener is provided on one side of the second support plate for pressing the end of the handrail rod.

[0007] Furthermore, the fastening clamp includes a ring body, a clamping claw and a rotating handle, the ring body is provided with a spiral groove, a large bevel gear and a small bevel gear, the end surface of the ring body facing away from the first support plate is provided with a sealing plate, and the inner side of the ring body is provided with a spring fixedly mounted on the sealing plate, and the outer end surface of the sealing plate is fixedly connected to the corresponding rotating shaft.

[0008] Furthermore, the rotating handle is fixedly connected to the small bevel gear, and the other end of the rotating handle is connected to a second motor for driving the rotating handle to rotate; the end of the spring facing away from the sealing plate is fixedly connected to a push plate, and a push switch for starting the second motor is installed on the inner wall of one side of the ring body, and a timer is provided on the starting control circuit of the second motor.

[0009] Furthermore, the push plate is formed with a bevel on the side corresponding to the push switch for contacting the push switch.

[0010] Preferably, the main box body is U-shaped, and two rotating shafts are respectively installed on the inner sides of two ends of the main box body.

[0011] Preferably, the first supporting plate is fixedly connected to the main box body via a fixing rod.

[0012] Preferably, the second supporting plate is fixedly connected to the corresponding rotating shaft via a long rod.

[0013] Furthermore, the second support plate is arranged to be inclined to adapt to the end of the handrail.

[0014] Preferably, the driving mechanism includes a first motor and a rotating shaft driven by the first motor, the rotating shaft is arranged parallel to the rotating shaft, and the rotating shaft is linked to the two rotating shafts through two sets of transmission structures respectively; the transmission structure includes an active rotating wheel mounted on the rotating shaft, a driven rotating wheel mounted on the rotating shaft, and a transmission belt or transmission chain surrounding the active rotating wheel and the driven rotating wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention arranges the main housing, the fastening clamp, the first support plate, the second support plate, the rotating shaft, the fasteners, etc., so that the main rod and the handrail of the motorcycle are in a horizontal state after being clamped and positioned, and can drive the main rod and the handrail after being clamped and positioned to rotate synchronously in the same direction, so as to facilitate the welding work on the circumference of the connection between the main rod and the handrail in one direction; at the same time, through the rotation of the main rod and the handrail, it is convenient to perform the welding operation of the lock plate, the connecting plate and the connecting rod on one side surface, and the welding work of the motorcycle handle is more convenient.

[0016] (2) The present invention adapts to the inclined setting of the end of the handrail by means of the second support plate, and utilizes the original situation that the two ends of the motorcycle handrail are not on the same axis. After the two ends of the handrail are clamped on the second support plate, the position of the handrail is uniquely determined. Based on this, it is easy to adjust the position of the main rod until it is accurately connected with the handrail.

[0017] (3) In the optimized scheme of the present invention, a spring for pushing the main rod is added based on the arrangement of the fastening clamp, the first support plate, the second support plate, the rotating shaft, the fastener, etc. When in use, the driving mechanism is started when the fastening clamp does not lock the main rod, driving the two rotating shafts to rotate in the same direction at the same time, and the handrail rod rotates accordingly, while the main rod does not rotate. When the handrail rod rotates to the point where the middle part is aligned with the snap-in at the end of the main rod, the main rod will automatically translate to the middle part of the handrail rod under the push of the elastic force of the spring, that is, the adjustment and docking of the main rod and the handrail rod is automatically completed. The present invention can save the manual adjustment work of the main rod and the handrail rod. For batch processing, it can improve the welding quality of the main rod and the handrail rod, and can also improve production efficiency.

[0018] (4) In the optimization scheme of the present invention, based on the scheme of automatically adjusting and docking the main rod and the handrail, a push plate, a press switch, a second motor and other components are added, so that after placing the main rod and clamping the handrail, as long as the driving mechanism is started, the main rod and the handrail can be automatically accurately docked. Moreover, after the two are accurately docked, the push plate can be pressed against the press switch to start the second motor to drive the fastening clamp to lock the main rod, so that the two rotating shafts synchronously drive the main rod and the handrail to rotate in the same direction. This can further reduce manual participation and improve the automation level of the motorcycle handlebar welding fixture.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the main box in the present invention; Figure 3 It is a structural side view of the fastening clamp of the present invention in the second embodiment; Figure 4 is a longitudinal cross-sectional view of the fastening clamp of the present invention in the second embodiment; Figure 5 It is a longitudinal cross-sectional view of the fastening clamp of the present invention in the third embodiment.

[0021] Figure numerals: 1. main box body; 2. fastening clamp; 21. collar body; 22. clamping claw; 23. rotating handle; 24. sealing plate; 25. spring; 26. push plate; 261. bevel; 27. push switch; 3. first support plate; 31. fixing rod; 4. second support plate; 41. long rod; 5. rotating shaft; 6. fastener; 7. driving mechanism; 71. first motor; 72. rotating shaft; 73. transmission structure; 731. active rotating wheel; 732. driven rotating wheel; 733. transmission belt or transmission chain. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0025] Example 1: Please refer to the attached Figure 1 , a welding fixture for motorcycle handlebars, comprising: The main box body 1 is U-shaped and has a driving mechanism 7 therein for driving the fastening clamp 2 and the handrail rod to rotate synchronously; The fastening clamp 2 is rotatably connected to the inner side of one end of the main box body 1 and connected to the driving mechanism 7, and is used to be fastened to the main rod to drive the main rod to rotate; The first support plate 3 is located on the side of the fastening clamp 2 facing away from the connection end thereof, and is used to support the main rod; the bottom of the first support plate 3 is fixedly connected to the main box body 1 through a fixing rod 31, and the fixing rod 31 is "L" shaped; There are two second support plates 4, which are symmetrically arranged on both sides of the first support plate 3, and are used to support the two ends of the handrail rod; and the two second support plates 4 are both adapted to the inclined setting of the ends of the handrail rod; Two rotating shafts 5 are arranged oppositely and coaxially, and are respectively arranged on the inner sides of both ends of the main box body 1, wherein one rotating shaft 5 is fixedly connected to the fastening clamp 2, and the other rotating shaft 5 is fixedly connected to the second supporting plate 4 through two long rods 41; The fasteners 6 are provided in two groups and are mounted on the second support plate 4 in a one-to-one correspondence, and are used to tighten the end of the handrail rod.

[0026] Please refer to the attached Figure 2 The driving mechanism 7 includes a rotating shaft 72 driven by a first motor 71 (in this embodiment, the first motor 71 adopts a dual-shaft motor), the rotating shaft 72 is arranged parallel to the rotating shaft 5, and the rotating shaft 72 is linked to the two rotating shafts 5 through two sets of transmission structures 73 (using a belt transmission structure or a chain transmission structure); the transmission structure 73 includes an active rotating wheel 731 sleeved on the rotating shaft 72, a driven rotating wheel 732 sleeved on the rotating shaft 5, and a transmission belt or a transmission chain 733 surrounding the active rotating wheel 731 and the driven rotating wheel 732. When in use, the first motor 71 drives the rotating shaft 72 to rotate, and the two active rotating wheels 731 rotate accordingly, and the driven rotating wheel 732 is driven to rotate through the transmission belt or the transmission chain 733, thereby driving the two rotating shafts 5 to rotate synchronously in the same direction.

[0027] In this embodiment, please refer to the attached Figure 1 The fastener 6 includes an "L"-shaped frame plate fixedly connected to the second support plate 4 and a bolt longitudinally penetrating and threadedly connected to the "L"-shaped frame plate, and the lower end of the bolt is rotatably connected to an arc-shaped pressing plate for pressing the handrail rod.

[0028] When in use, first insert one end of the main rod into the fastening clamp 2 and place it on the first support plate 3, and then clamp the two ends of the handrail rod on the second support plate 4 (locked by the fastener 6). Since the axes of the two ends of the handrail rod are not coaxial, after the two ends are locked, the position of the handrail rod is uniquely determined. Based on this, the main rod is rotated until its end bayonet is matched with the middle part of the handrail rod, and then the fastening clamp 2 is locked, so that the main rod and the handrail rod maintain a stable connection state. Afterwards, when welding is performed at the connection between the main rod and the handrail rod, the driving mechanism 7 is started to synchronously drive the two rotating shafts 5 to rotate in the same direction, and drive the main rod and the handrail rod to rotate synchronously, so as to facilitate the welding work of the connection circle in one direction, and the rotating shaft 5 has a slow rotation speed, which is convenient for welding. At the same time, through the rotation of the main rod and the handrail rod, it is convenient to perform the welding operation of the locking plate, the connecting piece and the connecting rod on one side.

[0029] Embodiment 2: This embodiment differs from Embodiment 1 in that: In this embodiment, please refer to the attached Figure 3 and attached Figure 4The fastening clamp 2 includes a three-jaw chuck structure, including a collar body 21, a clamping claw 22 and a rotating handle 23. The collar body 21 is provided with a spiral groove, a large bevel gear, and a small bevel gear (not shown in the figure). The large bevel gear is coaxially fixedly connected with the spiral groove, the small bevel gear is meshed with the large bevel gear, the rotating handle 23 is plug-connected with the small bevel gear, and the clamping claw 22 is adapted to be installed with the spiral groove. When used, the small bevel gear is driven to rotate by rotating the rotating handle 23, and the large bevel gear rotates accordingly, driving the spiral groove to rotate, thereby driving the three clamping claws 22 to move synchronously at the same time, so as to clamp the main rod in a coaxial position with the collar body 21. The end face of the collar body 21 facing away from the first support plate 3 is provided with a sealing plate 24, and the inner side of the collar body 21 is provided with a spring 25 fixedly installed on the sealing plate 24, and the outer end face of the sealing plate 24 is fixedly connected with the corresponding rotating shaft 5.

[0030] When in use, first insert one end of the main rod into the fastening clamp 2 and place it on the first support plate 3. In the subsequent process of clamping the handrail, it is necessary to push the main rod compression spring 25 to avoid obstructing the middle part of the handrail. After loosening the main rod, it is very likely that the middle part of the handrail is not aligned with the main rod end bayonet, which makes the handrail and the main rod unable to dock accurately. Then, the driving mechanism 7 is started without locking the main rod by the fastening clamp 2, driving the two rotating shafts 5 to rotate in the same direction at the same time, and the handrail rotates accordingly, while the main rod does not rotate. When the handrail rotates to the middle part of the main rod and aligns with the main rod end bayonet, the main rod will automatically translate to the middle part of the handrail under the elastic force of the spring 25, that is, the adjustment docking of the main rod and the handrail is automatically completed. After that, the fastening clamp 2 is locked again, so that the main rod and the handrail maintain a stable connection state, and the main rod and the handrail rotate synchronously, so as to weld the connection circumference in one direction. At the same time, by rotating the main rod and the handrail rod, it is convenient to carry out welding operations of the locking plate, the connecting plate and the connecting rod on one side.

[0031] The rest is the same as in the first embodiment.

[0032] Embodiment 3: This embodiment differs from Embodiment 2 in that: In this embodiment, please refer to the attached Figure 5, the rotating handle 23 is fixedly connected to the small bevel gear, and the other end of the rotating handle 23 is connected to a second motor (not shown in the figure) for driving the rotating handle 23 to rotate; the end of the spring 25 facing away from the sealing plate 24 is fixedly connected to a push plate 26, and a push switch 27 for starting the second motor is installed on the inner wall of one side of the collar body 21, and a bevel 261 for contacting the push switch 27 is formed on the push plate 26 corresponding to the side where the push switch 27 is located; a timer is also provided on the start control circuit of the second motor, which is used to set the trigger time of the push switch 27 (for example, the set time is 2s), and the second motor is only started when the bevel 261 continues to contact the push switch 27. A main switch is also provided on the start control circuit of the second motor to prevent the push switch 27 from being pushed by the bevel 261 to start the second motor in the initial state.

[0033] During the application process, after the handrail and the main rod are installed, when the middle of the handrail and the end of the main rod are not aligned, the position of the main rod is biased towards the spring 25, driving the push plate 26 to disengage from the press switch 27; when the handrail and the main rod are accurately engaged, the spring 25 pushes the push plate 26 to move to the position where the bevel 261 just touches the press switch 27, and after a period of time, the second motor is automatically started to realize the locking and positioning of the fastening clamp 2 on the main rod, so that the main rod and the handrail maintain a stable connection state, and the main rod and the handrail rotate synchronously, so as to facilitate welding of the connection circle in one direction. At the same time, through the rotation of the main rod and the handrail, it is convenient to perform welding operations on the locking plate, the connecting piece and the connecting rod on one side.

[0034] The rest is the same as in the second embodiment.

[0035] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A welding fixture for motorcycle handlebars, characterized in that: The invention comprises a main box (1), a fastening clamp (2), a first support plate (3) and two second support plates (4) mounted on the main box (1); the main box (1) is provided with two rotating shafts (5) arranged opposite to each other, and the main box (1) is provided with a driving mechanism (7) for driving the two rotating shafts (5) to rotate synchronously in the same direction; the fastening clamp (2) is fixedly connected to the end of one of the rotating shafts (5), the two second support plates (4) are fixedly connected to the other rotating shaft (5), the first support plate (3) is located between the fastening clamp (2) and the second support plate (4), and the first support plate (3) is fixedly connected to the main box (1); the second support plate (4) is used to support the end of a motorcycle handrail, the first support plate (3) is used to support a motorcycle main rod, and the fastening clamp (2) is used to lock the motorcycle main rod.

2. A welding fixture for motorcycle handlebars according to claim 1, characterized in that: A fastener (6) is provided on one side of the second support plate (4) for tightening the end of the handrail rod.

3. The welding fixture for motorcycle handlebars according to claim 1, characterized in that: The fastening clamp (2) comprises a collar body (21), a clamping claw (22) and a rotating handle (23); a spiral groove, a large bevel gear and a small bevel gear are arranged inside the collar body (21); a sealing plate (24) is arranged on the end surface of the collar body (21) facing away from the first support plate (3); a spring (25) fixedly mounted on the sealing plate (24) is arranged on the inner side of the collar body (21); and an outer end surface of the sealing plate (24) is fixedly connected to a corresponding rotating shaft (5).

4. A welding fixture for motorcycle handlebars according to claim 3, characterized in that: The rotating handle (23) is fixedly connected to the small bevel gear, and the other end of the rotating handle (23) is connected to a second motor for driving the rotating handle (23) to rotate; one end of the spring (25) facing away from the sealing plate (24) is fixedly connected to a push plate (26), and a push switch (27) for starting the second motor is installed on the inner wall of one side of the collar body (21), and a timer is provided on the starting control circuit of the second motor.

5. A welding fixture for motorcycle handlebars according to claim 4, characterized in that: The push plate (26) is formed with a bevel (261) on the side corresponding to the push switch (27) for contacting the push switch (27).

6. A welding fixture for motorcycle handlebars according to any one of claims 1 to 5, characterized in that: The main box body (1) is U-shaped, and the two rotating shafts (5) are respectively mounted on the inner sides of the two ends of the main box body (1).

7. A welding fixture for motorcycle handlebars according to claim 6, characterized in that: The first support plate (3) is fixedly connected to the main box body (1) via a fixing rod (31).

8. The welding fixture for motorcycle handlebars according to claim 6, characterized in that: The second support plate (4) is fixedly connected to the corresponding rotating shaft (5) via a long rod (41).

9. A welding fixture for motorcycle handlebars according to claim 6, characterized in that: The second support plate (4) is arranged to be inclined to adapt to the end of the handrail.

10. A welding fixture for motorcycle handlebars according to claim 6, characterized in that: The driving mechanism (7) comprises a first motor (71) and a rotating shaft (72) driven by the first motor (71); the rotating shaft (72) is arranged parallel to the rotating shaft (5), and the rotating shaft (72) is linked to the two rotating shafts (5) through two sets of transmission structures (73); the transmission structure (73) comprises an active rotating wheel (731) sleeved on the rotating shaft (72), a driven rotating wheel (732) sleeved on the rotating shaft (5), and a transmission belt or a transmission chain (733) encircling the active rotating wheel (731) and the driven rotating wheel (732).

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