Electric vehicle handle vertical pipe and handle pipe welding tool
By designing the reverse torsion angle preset between the riser and the handlebar in the welding tooling of the electric vehicle handlebar, the problems of large welding errors caused by stress torsion during welding and uncontrollable finished product quality are solved, and higher alignment accuracy and yield rate are achieved.
Patent Information
- Application Number
- CN202422161263.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-03
AI Technical Summary
During the welding process of electric vehicle handlebars, the riser and handle pipe are torsionally deformed due to stress, resulting in large welding errors and uncontrollable finished product quality.
An electric vehicle handlebar riser and handle pipe welding tool is designed. By setting a pipe positioning assembly and a riser positioning assembly on the fixed bottom plate, the riser adjustment plate and positioning column are used to realize the reverse torsion angle of the riser relative to the handle pipe, and offset the stress torsion generated during the welding process.
It effectively offsets the stress torsion generated during welding, improves the alignment accuracy between the riser and the handlebar after welding, and improves the yield rate of electric vehicle handle production.
Smart Images
Figure CN223012294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric vehicle production, especially the production and manufacturing technology of electric vehicle parts, and particularly relates to a welding tool for an electric vehicle handle riser and a handle tube. Background Art
[0002] In the production of electric vehicle parts, in the production and manufacturing of electric vehicle handles, it is usually necessary to separately produce the handle tube and the riser, and then use tooling fixtures to effectively clamp the handle tube and the riser respectively. After combining the two, they are welded to form an integral handle structure.
[0003] Generally, during the welding process, for the main structure of the riser, it is necessary to design a support member for supporting the riser upright, and the riser is effectively positioned below the handle welding position through the support member. On both sides of the support member, handle clamping components for supporting the handle are symmetrically designed corresponding to the handle position. After positioning the two positions, the next welding operation is carried out.
[0004] During the clamping and welding process, stress will be formed inside the handle. For the riser, the handle tube will undergo a certain amount of torsional deformation relative to the riser under the action of stress, resulting in large welding errors of the handle and uncontrollable finished product quality, which cannot meet the existing processing and use requirements.
[0005] In view of this situation, it is necessary to carry out reverse adjustment on the basis of the existing clamping and welding tooling for the stress that may be generated in subsequent processing, so as to effectively offset the stress torsion that may be generated subsequently. Summary of the Utility Model
[0006] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, the utility model provides a welding tool for an electric vehicle handle riser and a handle tube, which can effectively support and position the handle tube and the riser, and at the same time, effectively preset the position angle of the riser relative to the handle tube relative to the handle tube, and apply a reverse torsion angle in advance to offset the stress torsion generated during the welding process of the handle tube and the riser.
[0007] The technical solution adopted by the utility model to solve its technical problems is: a welding tool for an electric vehicle handle riser and a handle tube, which is used to respectively support and position and clamp the handle tube and the riser, and includes a fixed bottom plate. A handle tube positioning component and a riser positioning component are arranged on the fixed bottom plate. The handle tube is supported and clamped and positioned by the handle tube positioning component, and the riser positioning component is correspondingly arranged below the handle tube; the riser positioning component includes a riser positioning plate and a riser adjusting plate. The riser positioning plate is fixed on the riser adjusting plate. The riser is radially positioned with the riser adjusting plate through a riser fixing component. A plurality of long circular holes are distributed at intervals in the circumferential direction of the riser adjusting plate corresponding to the outer periphery of the riser positioning plate. The riser adjusting plate is adjustably arranged on the fixed bottom plate through the long circular holes.
[0008] In the above solution, corresponding to the torsional deformation existing in the welding of the connecting pipe and the riser pipe, when positioning the connecting pipe and the riser pipe, an angle is preset in advance in the reverse direction of the possible torsion, so as to offset the stress torsion generated by welding, and effectively ensure the alignment accuracy of the connecting pipe and the riser pipe after welding.
[0009] Furthermore, a number of oblong holes are distributed on the same circle, and the center of the circle is located on the axis of the riser pipe. Since the circle where the oblong holes are located is concentric with the riser pipe, when adjusting the torsional angle of the riser pipe by using the oblong holes, the angle can be effectively adjusted as needed, which is convenient for accurate positioning.
[0010] Furthermore, the fixation between the riser pipe and the riser pipe fixing component can be realized by a quick clamp in cooperation with an inserting pipe structure. An inserting hole is formed on the outer cylindrical surface of the riser pipe, and the riser pipe fixing component includes an inserting pipe positioning component and an abutting component; the inserting pipe positioning component includes an inserting pipe quick clamp, and an inserting pipe is fixed at the chuck end of the inserting pipe quick clamp. The outer diameter of the inserting pipe is adapted to the inner diameter of the inserting hole, and the inserting pipe is inserted and matched with the inserting hole under the action of the inserting pipe quick clamp; the abutting component includes an abutting quick clamp, and an arc-shaped plate is fixed at the chuck end of the abutting quick clamp. The outer side surface of the arc-shaped plate is matched with the outer cylindrical surface of the riser pipe.
[0011] Even further, the axes of the chucks of the inserting pipe quick clamp and the abutting quick clamp are located in the same plane and are symmetrically arranged with respect to the axis of the riser pipe; the inserting hole penetrates through the riser pipe along the radial direction of the riser pipe, and a positioning hole is also formed on the arc-shaped plate corresponding to the position of the inserting hole. The inserting pipe penetrates through the inserting hole and is inserted and matched with the positioning hole. In this way, the riser pipe can be effectively positioned in the radial direction. Through the design of the inserting pipe, unnecessary angular torsion between the riser pipe and the riser pipe fixing component can be avoided, further reducing the adjustment error and improving the processing accuracy.
[0012] Furthermore, in the installation and fixation of the riser adjusting plate, the riser positioning plate, the fixed bottom plate and the riser, the riser positioning assembly includes positioning columns. The radial cross-section of the positioning column is composed of a major arc and a chord connecting the two endpoints of the major arc. The inner circular surface at the lower end of the riser is circular, and the diameter of the major arc is the same as the diameter of the inner circular surface of the riser. The lower end of the riser is fitted and inserted with the upper end of the positioning column. Through holes for the insertion pipe to pass through are formed in the positioning column corresponding to the positions of the insertion holes. Anti-torsion holes are formed in both the riser adjusting plate and the riser positioning plate, and the radial cross-section of the anti-torsion hole is the same as that of the positioning column. A positioning hole is formed in the fixed bottom plate, and the diameter of the positioning hole is the same as the diameter of the major arc. The lower end of the positioning column is rotatably inserted into the positioning hole, and the riser adjusting plate and the riser positioning plate are respectively sleeved on the positioning column through the anti-torsion holes. The upper end of the positioning column is fitted and inserted with the riser, and the angle positioning between the positioning column and the riser is maintained through the insertion pipe. The middle section of the positioning column completes the angle positioning at the riser adjusting plate and the riser positioning plate through the cooperation with the anti-torsion hole, ensuring the positioning accuracy of the riser adjusting plate and the riser positioning plate. The lower end of the positioning column is rotatably matched with the fixed bottom plate through the positioning hole, ensuring the coaxiality of the riser, the riser adjusting plate, the riser positioning plate and the fixed bottom plate, and the radial torsion angle of the riser, the riser adjusting plate and the riser positioning plate can be synchronously adjusted with the fixed bottom plate according to actual requirements.
[0013] Preferably, the pipe positioning assembly includes pipe support assemblies arranged on both sides of the riser positioning assembly. The pipe support assemblies include a plurality of pipe support rods. The bottoms of the pipe support rods are fixed to the fixed bottom plate through pipe positioning bottom plates, and the tops of the pipe support rods are in profiling fit with the outer peripheral surface of the pipe.
[0014] Furthermore, the pipe includes a V-shaped pipe fitting and parallel pipe fittings extending outward from the open end of the V-shaped pipe fitting. Each side of the pipe support assembly includes three pipe support rods, which are respectively set as the first pipe support rod, the second pipe support rod and the third pipe support rod in the order from near to far from the riser positioning assembly. The top of the first pipe support rod is a slope, and this slope abuts against the side surface of the V-shaped pipe fitting. The second pipe support rod and the third pipe support rod respectively support at both ends of the parallel pipe fitting, and the tops of the second pipe support rod and the third pipe support rod have arc-shaped surfaces that are concave and fitted with the outer circular surface of the parallel pipe fitting.
[0015] Even further, a pipe limit stop block is provided on the third pipe support rod corresponding to the outer end face of the parallel pipe fitting. Through the design of the pipe limit stop block, position limitation can be effectively provided for the pipe at both axial ends of the pipe, ensuring the centering of the clamping of the pipe.
[0016] Even further, a pipe clamping assembly for pressing the parallel pipe fitting into the arc-shaped surface is provided on the third pipe support rod. Through the cooperation of the arc-shaped surface and the pipe clamping assembly, the position of the pipe is further effectively fixed, improving the welding accuracy.
[0017] The beneficial effects of the present utility model are as follows. The welding tooling for the handle vertical pipe and the handle pipe of the electric vehicle provided by the present utility model has a reasonable structural design. Through the cooperation of the handle pipe support assembly and the handle pipe clamping assembly, the position of the handle pipe can be effectively positioned. After the position of the handle pipe is positioned, the angle between the handle pipe and the vertical pipe can be adjusted relative to the handle pipe as needed to offset the angle torsion caused during the welding process, which is beneficial to improving the positioning accuracy of the welding of the vertical pipe and the handle pipe, and further improving the qualified rate of the production of the electric vehicle handle. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0019] Figure 1 is a perspective view of the optimal embodiment of the present utility model.
[0020] Figure 2 is a top view of the optimal embodiment of the present utility model.
[0021] Figure 3 is Figure 2 a cross-sectional view taken along A-A in
[0022] Figure 4 is Figure 2 a cross-sectional view taken along B-B in
[0023] Figure 5 is a perspective view of the positioning column in the optimal embodiment of the present utility model.
[0024] Figure 6 is a perspective view of the vertical pipe positioning plate and the vertical pipe adjusting plate in the optimal embodiment of the present utility model.
[0025] In the figure: 1. Parallel pipe fitting; 2. V-shaped pipe fitting; 3. Vertical pipe; 4. Insert pipe positioning assembly; 5. Handle pipe clamping assembly; 6. Handle pipe support assembly; 7. Fixed bottom plate; 8. Vertical pipe positioning plate; 9. Vertical pipe adjusting plate; 10. Abutting assembly; 11. Handle pipe limiting block; 12. Positioning column; 13. Insert pipe; 14. First handle pipe support rod; 15. Second handle pipe support rod; 16. Third handle pipe support rod; 17. Abutting quick clamp; 18. Arc plate; 19. Insert pipe quick clamp; 20. Through hole; 21. Anti-torsion hole; 22. Long circular hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only schematically showing the basic structure of the present utility model, so they only show the components related to the present utility model. Directions and references (such as up, down, left, right, etc.) can only be used to assist in the description of the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the claimed subject matter is only defined by the appended claims and their equivalents.
[0027] As Figure 1 and Figure 2 shown, a welding tooling for an electric vehicle handle riser and handle tube, which is used to respectively support and positionally clamp the handle tube and the riser 3, is the optimal embodiment of the present utility model.
[0028] After the welding tooling provided in this embodiment is used to support and position the handle tube and the riser, it is for the subsequent welding device to weld the riser and the handle tube into a whole. The handle tubes applicable to the processing in this embodiment include V-shaped pipe fittings 2 and parallel pipe fittings 1 extending outward from the open end of the V-shaped pipe fittings 2. The riser 3 applicable to the processing in this embodiment is a cylindrical pipe fitting, the radial cross-section of the riser 3 is circular and hollow inside. The riser is positioned at the lower end of the tip of the V-shaped pipe fitting 2 of the handle tube, and the parallel pipe fittings 1 are symmetrically arranged on both sides of the V-shaped pipe fitting 2.
[0029] The welding tooling provided in this embodiment includes a fixed bottom plate 7, a riser positioning assembly, and handle tube positioning assemblies respectively arranged on both sides of the riser positioning assembly. The handle tube positioning assemblies and the riser positioning assembly are both arranged above the fixed bottom plate 7.
[0030] In the positioning and clamping of the handle tube, it is realized through the handle tube positioning assembly. The handle tube positioning assembly includes handle tube support assemblies 6 respectively arranged on both sides of the riser positioning assembly. Each group of handle tube support assemblies 6 includes a handle tube clamping assembly 5 and three handle tube support rods. The bottom of the handle tube support rods is bolted and fixed to the fixed bottom plate 7 through a handle tube positioning bottom plate, and the top of each handle tube support rod is in a profiling fit with the outer peripheral surface of the handle tube.
[0031] Specifically, the handle tube support assembly 6 on each side includes three handle tube support rods, which can be respectively set as the first handle tube support rod 14, the second handle tube support rod 15, and the third handle tube support rod 16 according to the distance from near to far from the riser pipe positioning assembly. The top of the first handle tube support rod 14 is a bevel surface, and this bevel surface abuts against the side surface of the V-shaped pipe fitting 2. The second handle tube support rod 15 supports the end of the parallel pipe fitting 1 close to the riser pipe, and the top of the second handle tube support rod 15 has an arc surface that is concave and matches the outer circular surface of the parallel pipe fitting 1. The third handle tube support rod 16 supports the end of the parallel pipe fitting 1 far from the riser pipe, and the top of the third handle tube support rod 16 also has an arc surface that is concave and matches the outer circular surface of the parallel pipe fitting 1. At the same time, in order to limit the parallel pipe fitting 1 in the axial direction, the third handle tube support rod 16 is provided with a handle tube limit block 11 corresponding to the outer end face of the parallel pipe fitting 1. Through the design of the handle tube limit block 11, the position of the handle tube can be effectively limited at both ends in the axial direction of the handle tube, ensuring the clamping and centering of the handle tube.
[0032] The handle tube clamping assembly 5 is fixed on the third handle tube support rod 16. The handle tube clamping assembly 5 is usually designed as a commercially available quick clamp, and the output end of the clamp is an abutting joint, which is used to press the parallel pipe fitting 1 into the arc surface when clamping, realizing the function of fixing the position of the handle tube.
[0033] During the positioning and clamping of the riser pipe 3, it is necessary to preset the torsional angle of the riser pipe 3 relative to the handle tube when positioning the riser pipe through the riser pipe positioning assembly. The riser pipe positioning assembly is correspondingly arranged below the V-shaped pipe fitting 2 of the handle tube. The riser pipe positioning assembly includes a riser pipe positioning plate 8, a riser pipe adjusting plate 9, and a positioning column 12.
[0034] In this embodiment, first, the riser pipe needs to be assembled and installed with the riser pipe positioning assembly. The riser pipe positioning plate 8 is fixed on the riser pipe adjusting plate 9, and the riser pipe is radially positioned with the riser pipe adjusting plate 9 through the riser pipe fixing assembly.
[0035] The riser pipe adjusting plate 9 is provided with long circular holes 22 outside the four corner vertices corresponding to the riser pipe positioning plate 8. The riser pipe adjusting plate 9 is arranged on the fixed bottom plate 7 through bolts that cooperate with the long circular holes 22. The four long circular holes 22 are distributed on the same circle, and the center of this circle is located on the axis of the riser pipe. Since the circle where the long circular holes 22 are located is concentric with the riser pipe, when adjusting the torsional angle of the riser pipe by using the long circular holes 22, the angle can be effectively adjusted as needed and then locked and positioned by inserting bolts into the corresponding positions of the long circular holes 22.
[0036] During this positioning process, on the one hand, it is necessary to ensure that the riser pipe fixing assembly can be torsionally angled relative to the fixed bottom plate 7. At the same time, in order to ensure the stability of the riser pipe fixing, it is also necessary to maintain the fixation between the riser pipe 3 and the riser pipe fixing assembly to prevent the torsional angle between the riser pipe 3 and the riser pipe fixing assembly.
[0037] Such as Figure 4 andFigure 6 As shown, the riser pipe fixing assembly includes an insertion pipe positioning assembly 4 and an abutting assembly 10. The fixation between the riser pipe 3 and the riser pipe fixing assembly is achieved through a quick clamp and in cooperation with an insertion pipe structure.
[0038] Specifically, the insertion pipe positioning assembly 4 includes an insertion pipe quick clamp 19. The insertion pipe quick clamp 19 can also be a commercially available quick clamp. An insertion pipe 13 is fixed to the clamping head end of the insertion pipe quick clamp 19. The outer diameter of the insertion pipe is adapted to the inner diameter of the insertion hole. The insertion pipe is inserted into and cooperates with the insertion hole under the action of the insertion pipe quick clamp 19.
[0039] The abutting assembly 10 includes an abutting quick clamp 17. The abutting quick clamp 17 can also be a commercially available quick clamp. An arc-shaped plate 18 is fixed to the clamping head end of the abutting quick clamp 17. The outer side surface of the arc-shaped plate 18 cooperates with the outer circular surface of the riser pipe.
[0040] An insertion hole is formed on the outer circular surface of the riser pipe. The axes of the clamping heads of the insertion pipe quick clamp 19 and the abutting quick clamp 17 are located in the same plane and are centrosymmetrically arranged with respect to the axis of the riser pipe. The insertion hole penetrates the riser pipe 3 along the radial direction of the riser pipe. A counterposition hole is also formed on the arc-shaped plate 18 at the position corresponding to the insertion hole. The insertion pipe 13 penetrates the insertion hole and is inserted into and cooperates with the counterposition hole. In this way, after the riser pipe is installed, the insertion pipe is inserted into and cooperates with the riser pipe, the positioning column 12, and the arc-shaped plate 18 at the same time, which can effectively position the riser pipe in the radial direction. Through the design of the insertion pipe, unnecessary angular torsion between the riser pipe and the riser pipe fixing assembly can be avoided, further reducing the adjustment error and improving the processing accuracy.
[0041] The riser pipe positioning assembly includes a positioning column 12. As Figure 5 shown, the radial cross-section of the positioning column 12 is composed of a major arc and a chord connecting the two end points of the major arc. The inner circular surface at the lower end of the riser pipe is circular. The diameter of the major arc is the same as the diameter of the inner circular surface of the riser pipe 3. The lower end of the riser pipe 3 is inserted into and cooperates with the upper end of the positioning column 12. A through hole 20 for the insertion pipe 13 to penetrate is formed on the positioning column 12 at the position corresponding to the insertion hole. As Figure 6 shown, anti-torsion holes 21 are formed on both the riser pipe adjusting plate 9 and the riser pipe positioning plate 8. The radial cross-section of the anti-torsion hole 21 is the same as that of the positioning column 12. A positioning hole is formed on the fixed bottom plate 7, and the diameter of the positioning hole is the same as the diameter of the major arc.
[0042] During assembly, the lower outer sleeve of the riser pipe 3 is sleeved on the upper end of the positioning column 12, and the upper end of the positioning column 12 is inserted into the riser pipe 3 in a mating manner. The angle positioning between the positioning column 12 and the riser pipe is maintained through the insertion pipe 13. The riser pipe adjusting plate 9 and the riser pipe positioning plate 8 are respectively sleeved on the middle section of the positioning column 12 through the anti-twist holes 21. The middle section of the positioning column 12 is angle-positioned at the riser pipe adjusting plate 9 and the riser pipe positioning plate 8 through the cooperation with the anti-twist holes 21, ensuring the positioning accuracy of the riser pipe adjusting plate 9 and the riser pipe positioning plate 8. The lower end of the positioning column 12 is rotatably inserted into the positioning hole, and the lower end of the positioning column 12 is rotatably mated with the fixed bottom plate 7 through the positioning hole, ensuring that the riser pipe 3, the riser pipe adjusting plate 9, the riser pipe positioning plate 8 and the fixed bottom plate 7 are coaxial, and the radial torsion angle of the riser pipe 3, the riser pipe adjusting plate 9, the riser pipe positioning plate 8 and the fixed bottom plate 7 can be synchronously adjusted according to actual requirements.
[0043] Before welding operation, it is necessary to obtain the angle that needs to be pre-loaded reversely to overcome the stress generated by welding through testing and measurement from traditional welding. According to this angle, the torsion angle between the fixed bottom plate 7 and the riser pipe positioning assembly in this embodiment is adjusted. During adjustment, the handle pipe is positioned and fixed to the handle pipe positioning assembly, and the riser pipe 3 is positioned and fixed to the riser pipe positioning assembly. Then, the bolt on the long circular hole 22 of the riser pipe adjusting plate 9 is loosened, and after the riser pipe adjusting plate 9 is torsionally rotated by a preset angle, it is positioned and fixed to the fixed bottom plate 7 by using the cooperation between the bolt and the long circular hole 22, that is, the reverse torsion of the riser pipe 3 relative to the handle pipe is completed. Then, during subsequent welding, the reverse torsion is corrected by the stress caused by welding, so that the positioning angle between the riser pipe and the handle pipe becomes the angle required for the finished product.
[0044] Enlightened by the ideal embodiments of the present invention described above, through the above description, relevant workers can completely make various changes and modifications within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A welding tool for a handlebar riser and a handlebar tube of an electric vehicle, used to respectively support and position and clamp the handlebar tube and the riser (3), characterized in that: It comprises a fixed bottom plate (7), on which a handlebar positioning assembly and a riser positioning assembly are arranged, the handlebar is supported and clamped in position by the handlebar positioning assembly, and the riser positioning assembly is correspondingly arranged below the handlebar; The riser positioning assembly comprises a riser positioning plate (8) and a riser adjustment plate (9); the riser positioning plate (8) is fixed on the riser adjustment plate (9); the riser (3) is radially positioned with the riser adjustment plate (9) through the riser fixing assembly; the riser adjustment plate (9) has a plurality of oblong holes (22) spaced apart in the outer circumferential direction corresponding to the riser positioning plate (8); the riser adjustment plate (9) is adjustably arranged on the fixed bottom plate (7) through the oblong holes (22).
2. The welding tool for the handlebar riser and handlebar tube of an electric vehicle as claimed in claim 1, characterized in that: A plurality of oblong holes (22) are distributed on the same circle, and the center of the circle is located on the axis of the vertical pipe.
3. The welding tool for the handlebar riser and handlebar of an electric vehicle as claimed in claim 1, characterized in that: The outer circumferential surface of the riser (3) is provided with a plug hole, and the riser fixing assembly comprises a plug tube positioning assembly (4) and an abutment assembly (10); the plug tube positioning assembly (4) comprises a plug tube quick clamp (19), a plug tube (13) is fixed to the clamping head end of the plug tube quick clamp (19), the outer diameter of the plug tube (13) is matched with the inner diameter of the plug hole, and the plug tube is plugged and matched with the plug hole under the action of the plug tube quick clamp (19); the abutment assembly (10) comprises an abutment quick clamp (17), a curved plate (18) is fixed to the clamping head end of the abutment quick clamp (17), and the outer side surface of the curved plate (18) is matched with the outer circumferential surface of the riser.
4. The welding tool for the handlebar riser and handlebar tube of an electric vehicle as claimed in claim 3, characterized in that: The axes of the clamp of the quick clamp for inserting the tube (19) and the clamp of the quick clamp for abutting the tube (17) are located on the same plane and are centrally symmetrically arranged relative to the axis of the vertical tube (3); the plug-in hole penetrates the vertical tube in the radial direction of the vertical tube, and the arc plate (18) is also provided with an alignment hole corresponding to the position of the plug-in hole, and the inserting tube (13) penetrates the plug-in hole and is plugged in with the alignment hole.
5. The welding tool for the handlebar riser and handlebar of an electric vehicle as claimed in claim 1, characterized in that: The riser positioning assembly comprises a positioning column (12), the radial cross section of the positioning column (12) is composed of a major arc and a chord connecting the two end points of the major arc, the inner circular surface of the lower end of the riser (3) is circular, the diameter of the major arc is the same as the diameter of the inner circular surface of the riser (3), the lower end of the riser (3) is plugged into the upper end of the positioning column (12), and a through hole (20) for the insertion tube (13) to pass through is opened on the positioning column (12) at the position corresponding to the plug hole; The riser adjustment plate (9) and the riser positioning plate (8) are both provided with an anti-twist hole (21), and the radial cross section of the anti-twist hole (21) is the same as the radial cross section of the positioning column (12); A positioning hole is provided on the fixed bottom plate (7), the diameter of the positioning hole being the same as the diameter of the major arc, the lower end of the positioning column (12) is rotatably inserted into the positioning hole, and the riser adjustment plate (9) and the riser positioning plate (8) are respectively sleeved on the positioning column (12) through the anti-twist hole (21).
6. The welding tool for the handlebar riser and handlebar of an electric vehicle as claimed in claim 1, characterized in that: The handlebar positioning assembly comprises a handlebar support assembly (6) arranged on both sides of the riser positioning assembly, the handlebar support assembly (6) comprises a plurality of handlebar support rods, the bottom of the handlebar support rods are fixed to the fixing bottom plate (7) through a handlebar positioning bottom plate, and the top of the handlebar support rods is conformally matched with the outer peripheral surface of the handlebar.
7. The welding tool for the handlebar riser and handlebar of an electric vehicle as claimed in claim 6, characterized in that: The handlebar comprises a V-shaped pipe (2) and a parallel pipe (1) extending outward from the open end of the V-shaped pipe (2); the handlebar support assembly (6) on each side comprises three handlebar support rods, which are respectively arranged as a first handlebar support rod (14), a second handlebar support rod (15) and a third handlebar support rod (16) according to the distance from the vertical pipe positioning assembly from near to far, wherein the top of the first handlebar support rod (14) is an inclined surface, which abuts against the side surface of the V-shaped pipe (2); the second handlebar support rod (15) and the third handlebar support rod (16) are respectively supported at two ends of the parallel pipe (1); the tops of the second handlebar support rod (15) and the third handlebar support rod (16) have a concave arc surface that matches the outer circumferential surface of the parallel pipe (1).
8. The welding tool for the handlebar riser and handlebar of an electric vehicle as claimed in claim 7, characterized in that: The third handlebar support rod (16) is provided with a handlebar limiting block (11) on the outer end surface corresponding to the parallel pipe member (1).
9. The welding tool for the handlebar riser and handlebar tube of an electric vehicle as claimed in claim 8, characterized in that: The third handlebar support rod (16) is provided with a handlebar clamping assembly (5) for crimping the parallel pipe (1) within the arc surface.