Welding tool for lower connecting assembly of motorcycle engine

Abstract

The invention relates to the technical field of motorcycle welding tools, and discloses a lower connecting assembly welding tool of a motorcycle engine. The welding tool body comprises a first positioning mechanism, a second positioning mechanism, a clamping mechanism, a fastening mechanism, a base supporting mechanism and a welding auxiliary mechanism, wherein the first positioning mechanism and the second positioning mechanism are used for positioning the connecting assembly, the clamping mechanism is used for clamping the connecting assembly, the fastening mechanism is used for fastening and limiting, the base supporting mechanism is used for supporting the connecting assembly, and the welding auxiliary mechanism is used for welding. The lower connecting assembly is clamped and fixed through the clamping blocks in the clamping mechanism, and it is guaranteed that the lower connecting assembly is fixed; a locking frame in the locking mechanism is used for fixing and limiting the side surface of the connecting assembly, so that the clamping stability of the connecting assembly is ensured; through cooperation of the first positioning mechanism, the clamping mechanisms and the locking mechanism, clamping is more stable, meanwhile, fixing actions of the three sets of clamping mechanisms are synchronous, and the problem that an existing connecting assembly clamp needs to be fixed one by one, and consequently the efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the field of motorcycle welding tooling, in particular to a lower connection assembly welding tooling for a motorcycle engine. Background Art

[0002] The motorcycle engine lower connection assembly is located at the lower middle part of the motorcycle frame, and is mainly composed of a front footrest connection pipe, a front right footrest mounting bracket, a main bracket mounting plate, a front left footrest mounting bracket, and two engine lower connection plates. The front right footrest mounting bracket, the main bracket mounting plate, the front left footrest mounting bracket, and the two engine lower connection plates are welded to the front footrest connection pipe by electric welding.

[0003] The existing tooling uses multiple positioning pins and quick clamps to position and clamp the lower connection assembly of the motorcycle engine. However, this method is cumbersome to operate, and each clamp needs to be fixed one by one, resulting in low efficiency. At the same time, due to the different clamping forces of each clamp, the position accuracy of the lower connection assembly is limited, and there is a risk of inadequate or unstable clamping. At the same time, impurities often exist on the surface of the tooling during welding, affecting the welding quality. The existing method usually uses manual pre-cleaning of the tooling, which is time-consuming and labor-intensive. Based on this, we propose a welding tooling for the lower connection assembly of a motorcycle engine. Summary of the invention

[0004] In order to solve the technical problems that the clamping force of each clamp is different, the position accuracy of the lower connecting assembly is limited, and there is a risk of inadequate clamping or unstable clamping, the present invention provides a welding tool for the lower connecting assembly of a motorcycle engine.

[0005] The present invention is implemented by the following technical scheme: a welding tool for the lower connection assembly of a motorcycle engine, comprising a welding tool body, the welding tool body comprising a first positioning mechanism and a second positioning mechanism for positioning the connection assembly, a clamping mechanism for clamping the connection assembly, a fastening mechanism for fastening and limiting, a base supporting mechanism for supporting the connection assembly, and a welding auxiliary mechanism for welding;

[0006] The first positioning mechanism includes a working motor, the top of which is connected to a rotating rod; the top of the handle is connected to a connecting screw, the surface of the connecting screw is sleeved with a first limit block and a second limit block, a first connecting plate is installed above the first limit block, and the first connecting plate is connected to a first positioning rod;

[0007] A second connecting plate is connected above the second limiting block, and a second positioning rod is installed on the top of the second connecting plate.

[0008] The lower connecting assembly of the motorcycle engine is placed between the clamping mechanism and the fastening mechanism, and the bottom end of the lower connecting assembly is stuck in the limit slot. The staff turns the handle, and the handle drives the connecting screw connected thereto to rotate. The surface of the connecting screw is sleeved with a first limit block and a second limit block, and the first limit block and the second limit block are sleeved on the connecting screw with opposite thread rotation directions. As the connecting screw rotates, the first limit block and the second limit block move closer to each other, and the first limit block and the second limit block then drive the first connecting plate and the second connecting plate connected thereto to move closer together synchronously, and the first positioning rod and the second positioning rod connected to the first connecting plate and the second connecting plate then move closer together synchronously, and the first positioning rod and the second positioning rod then fix and clamp the lower connecting assembly.

[0009] The clamping mechanism includes a connecting rod, the outer side of the connecting rod is connected to one end of a receiving part, the other end of the receiving part is connected to a mounting frame, both ends of the mounting frame are equipped with a moving handle, the bottom end of the moving handle is provided with a moving deflection part, and the outer side of the moving deflection part is connected to a clamping block for fixing the connection assembly.

[0010] Through the rotation of the connecting screw, the receiving movable sleeve sleeved on the surface of the connecting screw performs synchronous movement, the receiving movable sleeve then moves on the surface of the connecting screw, the receiving movable sleeve then drives the connecting rod connected thereto to perform synchronous movement, the connecting rod then drives the receiving part connected thereto to perform synchronous movement, the receiving part then drives the mounting frame connected thereto to perform synchronous movement, the mounting frame then drives the moving rod handle connected thereto to perform synchronous movement, the moving rod handle then deflects, the moving rod handle drives the moving deflection part to deflect, the moving deflection part drives the clamping block to perform synchronous deflection, the clamping block then clamps and fixes the lower connecting assembly to ensure the fixation of the lower connecting assembly.

[0011] The fastening mechanism includes a moving rod, which is installed below the mounting frame. The inner side of the moving rod is connected to one end of the moving frame, and the other end of the moving frame is connected to a connecting handle. The bottom end of the connecting handle is connected to a mounting component block, and the top end of the mounting component block is connected to a component rod, and the surface of the component rod is sleeved with a component sleeve.

[0012] The receiving rod on the locking mechanism is connected to the connecting rod, the receiving plate is connected to the top of the component rod, the outer side of the receiving plate is connected to the first motion adjustment part, the first motion adjustment part and the second motion adjustment part are connected through the deflection axis, the outer side of the second motion adjustment part is installed with a locking frame, the top of the locking frame is penetrated by an upper deflection shaft rod, and both ends of the lower deflection shaft rod are fixed on the mounting column and penetrate the locking frame;

[0013] The base supporting mechanism comprises a base platform, a limit clamping block is installed on the top of the base platform, and a limit clamping groove is arranged on the upper surface of the base platform.

[0014] The connection assembly welding surface cleaning mechanism includes a first bevel gear, the first bevel gear and the top surface of the connecting screw, the outer surface of the first bevel gear is meshed with a second bevel gear, the connecting rod passes through the second bevel gear, the top end of the connecting rod is connected to a third bevel gear, and the bottom end of the third bevel gear is meshed with a fourth bevel gear; the bottom end of the fourth bevel gear is connected to a rotating disk, and the bottom end of the rotating disk is movably connected to a rotating rod;

[0015] One end of the connecting shaft is installed on the surface of the rotating disc, and the other end of the connecting shaft is connected to a moving rod. The bottom end of the moving rod is inserted into the sliding groove, and the bottom end of the moving rod slides in the sliding groove. The outer side of the moving rod is connected to one end of a cleaning rod, and the other end of the cleaning rod is connected to a cleaning brush for cleaning the surface of the connecting assembly. The bottom end of the connecting rod is supported by a mounting seat.

[0016] As a further improvement of the above solution, the clamping mechanism is located between the first positioning mechanism and the second positioning mechanism, and the clamping mechanism, the first positioning mechanism and the second positioning mechanism clamp and fix the connection assembly.

[0017] As a further improvement of the above solution, the clamping mechanism is located between the first positioning mechanism and the second positioning mechanism, and the clamping mechanism, the first positioning mechanism and the second positioning mechanism clamp and fix the connection assembly.

[0018] As a further improvement of the above scheme, with the movement of the mounting frame, the mounting frame drives the moving rod connected thereto to move synchronously, the moving rod drives the moving frame connected thereto to move synchronously, the moving frame drives the connecting handle connected thereto to move, the connecting handle then drives the mounting component block connected thereto to deflect, the mounting component block thereby drives the component rod connected thereto and the locking mechanism to move synchronously, the locking mechanism pushes inward, and at the same time, with the movement of the above-mentioned connecting rod, the connecting rod drives the receiving rod connected thereto to move, the receiving rod pushes the locking frame connected thereto inward to deflect, the top end of the locking frame deflects around the upper deflection shaft rod, the upper deflection shaft rod drives the second motion adjustment part and the first motion adjustment part to deflect, with the movement and deflection of the locking frame, the locking frame then clamps and limits, limits the connection assembly, ensures the clamping stability of the connection assembly, and facilitates the welding of the connection assembly.

[0019] As a further improvement of the above solution, the cleaning brush is driven by the cleaning rod to perform reciprocating motion, and the cleaning brush then cleans the surface of the connection assembly to remove impurities on the surface of the connection assembly to ensure welding quality.

[0020] As a further improvement of the above scheme, the first positioning rod and the second positioning rod are both cylindrical, and the first positioning rod and the second positioning rod clamp and fix the connection assembly; the first limit block and the second limit block are both sleeved on the surface of the connecting screw, and the first limit block and the second limit block are sleeved on the connecting screw with opposite thread rotation directions.

[0021] As a further improvement of the above scheme, the welding auxiliary mechanism includes a fixed stand, a stand rod is fixedly installed on the top of the fixed stand, and a welding head is connected to the stand rod; the stand rod is installed on a movable plate, and the bottom end of the movable plate is sleeved on the sliding component rod; the movable plate slides on the sliding component rod to adjust the welding position of the welding head, thereby facilitating flexible welding.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention innovatively proposes a first positioning mechanism, a clamping mechanism, a fastening mechanism and a locking mechanism, wherein the first positioning rod and the second positioning rod in the first positioning mechanism then fix and clamp the lower connecting assembly; the clamping block in the clamping mechanism clamps and fixes the lower connecting assembly to ensure the fixation of the lower connecting assembly; the locking frame in the locking mechanism fixes and limits the side of the connecting assembly to ensure the stability of the clamping of the connecting assembly; through the cooperation of the first positioning mechanism, the clamping mechanism and the locking mechanism, the clamping is made more stable. At the same time, the fixing actions of the three groups of clamping mechanisms are synchronized, avoiding the problem that the existing connecting assembly clamps need to be fixed one by one, resulting in low efficiency.

[0024] 2. The present invention innovatively combines the first positioning mechanism, the clamping mechanism and the locking mechanism. While controlling the first positioning mechanism to perform the clamping operation, the clamping mechanism and the locking mechanism are synchronously driven to perform the synchronous clamping operation, so that the clamping and fixing steps can be achieved at the same time, realizing the synchronous clamping movement, and the operation is more convenient. The clamping force of each clamp is kept synchronized, and there is no need to fix each group of clamps one by one at the same time, which leads to low efficiency and different clamping force of each clamp.

[0025] 3. The present invention innovatively proposes a connection assembly weld surface cleaning mechanism, which controls the rotation of the connection screw while controlling the first positioning mechanism to perform a clamping operation, and also simultaneously realizes the synchronous operation of the connection assembly weld surface cleaning mechanism, controls the cleaning brush to clean the surface of the connection assembly, removes impurities on the surface of the connection assembly, avoids welding defects due to impurities on the surface of the connection assembly during welding, and improves the quality of tooling welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2For the present invention Figure 1 Schematic diagram of the structural cross section of the middle part;

[0028] Figure 3 This is a schematic diagram of the connection structure of the first positioning mechanism of the present invention;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0030] Figure 5 It is a schematic diagram of the connection structure of the clamping mechanism of the present invention;

[0031] Figure 6 For the present invention Figure 5 Schematic diagram of the structural cross section of the middle part;

[0032] Figure 7 It is a schematic diagram of the connection structure of the fastening mechanism of the present invention;

[0033] Figure 8 It is a schematic diagram of the connection structure of the welding surface cleaning mechanism of the connection assembly of the present invention;

[0034] Fig. 9 It is a schematic diagram of the connection structure of the locking mechanism of the present invention.

[0035] Description of main symbols:

[0036] 1. Welding tool body; 2. First positioning mechanism; 21. Working motor; 22. Rotating rod; 23. Handle; 24. Connecting screw; 241. Undertaking movable sleeve; 25. First limit block; 26. First connecting plate; 27. First positioning rod; 28. Second limit block; 29. ​​Second connecting plate; 210. Second positioning rod; 3. Second positioning mechanism; 4. Clamping mechanism; 41. Connecting rod; 42. Undertaking part; 43. Mounting frame; 44. Moving rod handle; 45. Moving deflection part; 46. Clamping block; 5. Fastening mechanism; 50. Moving rod; 51. Moving frame; 52. Connecting handle; 53. Mounting component block; 54. Component rod; 55. Component sleeve; 6. Base support mechanism; 61. Base platform; 62. Limiting block; 63. Limit 1. Positioning slot; 2. Welding auxiliary mechanism; 3. Fixed stand; 4. Stand rod; 5. Welding head; 6. Movable plate; 7. Sliding assembly rod; 8. Connecting assembly welding surface cleaning mechanism; 9. First bevel gear; 10. Second bevel gear; 11. Connecting rod; 12. Third bevel gear; 13. Fourth bevel gear; 14. Rotating disc; 15. Rotating rod; 16. Connecting shaft; 17. Moving rod; 18. Connecting shaft; 19. Moving rod; 20. Sliding slot; 21. Cleaning rod; 22. Cleaning brush; 23. Mounting seat; 24. Locking mechanism; 25. Receiver rod; 26. Receiver plate; 27. First motion adjustment part; 28. Second motion adjustment part; 29. ​​Deflection axis; 30. Locking frame; 31. Upper deflection shaft; 32. Lower deflection shaft; 33. Mounting column. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0038] Embodiment 1:

[0039] Please combine Figure 3-Figure 7 This embodiment proposes a welding tool for the lower connection assembly of a motorcycle engine, including a welding tool body 1, the welding tool body 1 includes a first positioning mechanism 2 and a second positioning mechanism 3 for positioning the connection assembly, a clamping mechanism 4 for clamping the connection assembly, a fastening mechanism 5 for fastening and limiting, a base supporting mechanism 6 for supporting the connection assembly, a welding auxiliary mechanism 7 for welding; a connection assembly welding surface cleaning mechanism 8 for cleaning the surface of the connection assembly; and a locking mechanism 9 for limiting;

[0040] It should be noted that the clamping mechanism 4 is located between the first positioning mechanism 2 and the second positioning mechanism 3 , and the clamping mechanism 4 , the first positioning mechanism 2 and the second positioning mechanism 3 clamp and fix the connection assembly.

[0041] Among them, the clamping mechanism 4 includes a connecting rod 41, the outer side of the connecting rod 41 is connected to one end of a receiving portion 42, the other end of the receiving portion 42 is connected to a mounting frame 43, both ends of the mounting frame 43 are equipped with a moving handle 44, the bottom end of the moving handle 44 is provided with a moving deflection portion 45, and the outer side of the moving deflection portion 45 is connected to a clamping block 46 for fixing the connection assembly.

[0042] It should be noted that the connecting rod 41 is connected to the connecting screw 24 , and the connection between the connecting rod 41 and the connecting screw 24 is connected via a receiving movable sleeve 241 , and the movement of the receiving movable sleeve 241 drives the connecting rod 41 to move.

[0043] More specifically, through the rotation of the connecting screw 24, the receiving movable sleeve 241 sleeved on the surface of the connecting screw 24 performs synchronous movement, the receiving movable sleeve 241 then moves on the surface of the connecting screw 24, the receiving movable sleeve 241 then drives the connecting rod 41 connected thereto to perform synchronous movement, the connecting rod 41 then drives the receiving portion 42 connected thereto to perform synchronous movement, the receiving portion 42 then drives the mounting frame 43 connected thereto to perform synchronous movement, the mounting frame 43 then drives the moving rod handle 44 connected thereto to perform synchronous movement, the moving rod handle 44 then deflects, the moving rod handle 44 drives the moving deflection portion 45 to deflect, the moving deflection portion 45 drives the clamping block 46 to perform synchronous deflection, the clamping block 46 then clamps and fixes the lower connecting assembly to ensure the fixation of the lower connecting assembly.

[0044] The fastening mechanism 5 includes a moving rod 50, which is installed below the mounting frame 43. The inner side of the moving rod 50 is connected to one end of a moving frame 51, and the other end of the moving frame 51 is connected to a connecting handle 52. The bottom end of the connecting handle 52 is connected to a mounting component block 53, and the top end of the mounting component block 53 is connected to a component rod 54, and the surface of the component rod 54 is sleeved with a component sleeve 55.

[0045] The receiving rod 91 on the locking mechanism 9 is connected to the connecting rod 41, the receiving plate 92 is connected to the top of the component rod 54, the outer side of the receiving plate 92 is connected to the first motion adjustment part 93, the first motion adjustment part 93 and the second motion adjustment part 94 are connected through the deflection axis 95, and the outer side of the second motion adjustment part 94 is installed with a locking frame 96, the top of the locking frame 96 is penetrated by an upper deflection shaft rod 97, and both ends of the lower deflection shaft rod 98 are fixed on the mounting column 99 and penetrate the locking frame 96;

[0046] It should be noted that the welding auxiliary mechanism 7 includes a fixed stand 71, a stand rod 72 is fixedly installed on the top of the fixed stand 71, and a welding head 73 is connected to the stand rod 72; the stand rod 72 is installed on a movable plate 74, and the bottom end of the movable plate 74 is sleeved on the sliding component rod 75.

[0047] More specifically, as the mounting frame 43 moves, the mounting frame 43 drives the motion rod 50 connected thereto to move synchronously, the motion rod 50 drives the moving frame 51 connected thereto to move synchronously, the moving frame 51 drives the connecting handle 52 connected thereto to move, the connecting handle 52 then drives the mounting component block 53 connected thereto to deflect, the mounting component block 53 thereby drives the component rod 54 connected thereto and the locking mechanism 9 to move synchronously, the locking mechanism 9 is pushed inward, and at the same time, as the connecting rod 41 moves, the connecting rod 41 drives the connecting rod 54 connected thereto to move synchronously. The receiving rod 91 moves, and the receiving rod 91 pushes the locking frame 96 connected to it inward to deflect. The top of the locking frame 96 deflects around the upper deflection shaft 97, and the upper deflection shaft 97 drives the second motion adjustment part 94 and the first motion adjustment part 93 to deflect. As the locking frame 96 moves and deflects, the locking frame 96 then clamps and limits the connection assembly to ensure the stability of the clamping of the connection assembly and facilitate the welding of the connection assembly; the movable plate 74 slides on the sliding component rod 75 to adjust the welding position of the welding head 73, which is convenient for flexible welding.

[0048] Embodiment 2:

[0049] Please combine Figure 1-Figure 2 , this embodiment proposes that the first positioning mechanism 2 fixes the connection assembly, and the first positioning mechanism 2 includes a working motor 21, and the top of the working motor 21 is connected to a rotating rod 22; the top of the handle 23 is connected to a connecting screw 24, and the surface of the connecting screw 24 is sleeved with a first limit block 25 and a second limit block 28, and a first connecting plate 26 is installed above the first limit block 25, and a first positioning rod 27 is connected above the first connecting plate 26;

[0050] A second connecting plate 29 is connected above the second limiting block 28 , and a second positioning rod 210 is installed on the top of the second connecting plate 29 .

[0051] More specifically, the lower connecting assembly of the motorcycle engine is placed between the clamping mechanism 4 and the fastening mechanism 5, and the bottom end of the lower connecting assembly is stuck in the limit slot 63. The staff rotates the handle 23, and the handle 23 drives the connecting screw 24 connected thereto to rotate. The surface of the connecting screw 24 is sleeved with a first limit block 25 and a second limit block 28. The first limit block 25 and the second limit block 28 are sleeved on the connecting screw 24 with opposite thread rotation directions. As the connecting screw 24 rotates, the first limit block 25 and the second limit block 28 move closer to each other. The first limit block 25 and the second limit block 28 then drive the first connecting plate 26 and the second connecting plate 29 connected thereto to move closer synchronously. The first positioning rod 27 and the second positioning rod 210 connected to the first connecting plate 26 and the second connecting plate 29 then move closer synchronously, and the first positioning rod 27 and the second positioning rod 210 then fix and clamp the lower connecting assembly.

[0052] Furthermore, the base support mechanism 6 includes a base platform 61 , a limit block 62 is installed on the top of the base platform 61 , and a limit slot 63 is provided on the upper surface of the base platform 61 .

[0053] It should be noted that the first positioning rod 27 and the second positioning rod 210 are both cylindrical, and the first positioning rod 27 and the second positioning rod 210 clamp and fix the connection assembly; the first limit block 25 and the second limit block 28 are both sleeved on the surface of the connecting screw 24, and the first limit block 25 and the second limit block 28 are sleeved on the connecting screw 24 with opposite thread rotation directions.

[0054] Embodiment 3:

[0055] Please combine Figure 8 The present embodiment proposes a connection assembly welding surface cleaning mechanism 8, which can clean the surface of the connection assembly under the motorcycle engine, remove impurities on the surface of the connection assembly, and ensure the welding quality. The connection assembly welding surface cleaning mechanism 8 includes a first bevel gear 81, the first bevel gear 81 and the top surface of the connecting screw 24, the outer surface of the first bevel gear 81 is meshed with a second bevel gear 82, the connecting rod 83 passes through the second bevel gear 82, the top end of the connecting rod 83 is connected to a third bevel gear 84, and the bottom end of the third bevel gear 84 is meshed with a fourth bevel gear 85;

[0056] The bottom end of the fourth bevel gear 85 is connected to a rotating disc 86, and the bottom end of the rotating disc 86 is movably connected to a rotating rod 87;

[0057] One end of the connecting shaft 88 is installed on the surface of the rotating disk 86, and the other end of the connecting shaft 88 is connected to the moving rod 89. The bottom end of the moving rod 89 is inserted into the sliding groove 810, and the bottom end of the moving rod 89 slides in the sliding groove 810. The outer side of the moving rod 89 is connected to one end of the cleaning rod 811, and the other end of the cleaning rod 811 is connected to a cleaning brush 812 for cleaning the surface of the connecting assembly. The bottom end of the connecting rod 83 is supported by the mounting seat 813.

[0058] More specifically, through the rotation of the connecting screw 24, the first bevel gear 81 connected to the top of the connecting screw 24 rotates synchronously, the first bevel gear 81 drives the second bevel gear 82 meshing with it to rotate synchronously, the connecting rod 83 connected to the inner side of the second bevel gear 82 rotates synchronously, the third bevel gear 84 connected to the top of the connecting rod 83 rotates synchronously, and the third bevel gear 84 then drives the fourth bevel gear 85 meshing below it to rotate synchronously. With the rotation of the fourth bevel gear 85, the rotating disk 86 connected below the fourth bevel gear 85 rotates synchronously, the rotating disk 86 drives the connecting shaft 88 to move synchronously, the connecting shaft 88 deflects, and the moving rod 89 connected to the other end of the connecting shaft 88 is driven to slide in the sliding groove 810, and the moving rod 89 then drives the cleaning rod 811 to move and adjust, the cleaning rod 811 drives the cleaning brush 812 to reciprocate, and the cleaning brush 812 then cleans the surface of the connecting assembly to remove impurities on the surface of the connecting assembly to ensure welding quality.

[0059] The specific implementation steps of the overall technical solution of the present invention are as follows:

[0060] When in use, the lower connecting assembly of the motorcycle engine is placed between the clamping mechanism 4 and the fastening mechanism 5, and the bottom end of the lower connecting assembly is stuck in the limiting slot 63. The staff rotates the handle 23, and the handle 23 drives the connecting screw 24 connected thereto to rotate. The surface of the connecting screw 24 is sleeved with a first limiting block 25 and a second limiting block 28. The first limiting block 25 and the second limiting block 28 are sleeved at the connecting screw 24 with opposite thread rotation directions. With the rotation of the connecting screw 24, the first limiting block 25 and the second limiting block 28 move relatively close to each other, and the first limiting block 25 and the second limiting block 28 then drive the first connecting plate 26 and the second connecting plate 29 connected thereto to move synchronously and close to each other, and the first positioning rod 27 and the second positioning rod 210 connected to the first connecting plate 26 and the second connecting plate 29 then move synchronously close to each other, and the first positioning rod 27 and the second positioning rod 210 then fix and clamp the lower connecting assembly;

[0061] At the same time, with the rotation of the connecting screw 24, the receiving movable sleeve 241 sleeved on the surface of the connecting screw 24 moves synchronously, and the receiving movable sleeve 241 then moves on the surface of the connecting screw 24, and the receiving movable sleeve 241 then drives the connecting rod 41 connected thereto to move synchronously, and the connecting rod 41 then drives the receiving portion 42 connected thereto to move synchronously, and the receiving portion 42 then drives the mounting frame 43 connected thereto to move synchronously, and the mounting frame 43 then drives the moving rod handle 44 connected thereto to move synchronously, and the moving rod handle 44 then deflects, and the moving rod handle 44 drives the moving deflection portion 45 to deflect, and the moving deflection portion 45 drives the clamping block 46 to deflect synchronously, and the clamping block 46 then clamps and fixes the lower connecting assembly to ensure the fixation of the lower connecting assembly;

[0062] At the same time, with the movement of the above-mentioned mounting frame 43, the mounting frame 43 drives the movement rod 50 connected thereto to move synchronously, the movement rod 50 drives the moving frame 51 connected thereto to move synchronously, the moving frame 51 drives the connecting handle 52 connected thereto to move, the connecting handle 52 then drives the mounting component block 53 connected thereto to deflect, the mounting component block 53 thereby drives the component rod 54 connected thereto and the locking mechanism 9 to move synchronously, the locking mechanism 9 is pushed inward, and at the same time, with the movement of the above-mentioned connecting rod 41, the connecting rod 41 drives the connecting rod 54 connected thereto to move synchronously. The receiving rod 91 moves, and the receiving rod 91 pushes the locking frame 96 connected to it inward to deflect. The top of the locking frame 96 deflects around the upper deflection shaft 97, and the upper deflection shaft 97 drives the second motion adjustment part 94 and the first motion adjustment part 93 to deflect. As the locking frame 96 moves and deflects, the locking frame 96 then clamps and limits the connection assembly to ensure the stability of the clamping of the connection assembly and facilitate the welding of the connection assembly; the movable plate 74 slides on the sliding component rod 75 to adjust the welding position of the welding head 73, which is convenient for flexible welding.

[0063] At the same time, with the rotation of the connecting screw 24, the first bevel gear 81 connected to the top of the connecting screw 24 rotates synchronously, and the first bevel gear 81 drives the second bevel gear 82 meshing with it to rotate synchronously, and the connecting rod 83 connected to the inner side of the second bevel gear 82 rotates synchronously, and the third bevel gear 84 connected to the top of the connecting rod 83 rotates synchronously, and the third bevel gear 84 then drives the fourth bevel gear 85 meshing below it to rotate synchronously. With the rotation of the fourth bevel gear 85, the rotating disk 86 connected below the fourth bevel gear 85 rotates synchronously, and the rotating disk 86 drives the connecting shaft 88 to move synchronously, and the connecting shaft 88 deflects, and the moving rod 89 connected to the other end of the connecting shaft 88 is driven to slide in the sliding groove 810, and the moving rod 89 then drives the cleaning rod 811 to move and adjust, and the cleaning rod 811 drives the cleaning brush 812 to reciprocate, and the cleaning brush 812 then cleans the surface of the connection assembly to remove impurities on the surface of the connection assembly to ensure welding quality.

[0064] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A welding tool for a lower connection assembly of a motorcycle engine, comprising a welding tool body (1), characterized in that: The welding tool body (1) comprises a first positioning mechanism (2) and a second positioning mechanism (3) for positioning the connection assembly, a clamping mechanism (4) for clamping the connection assembly, a fastening mechanism (5) for fastening and limiting, a base supporting mechanism (6) for supporting the connection assembly, a welding auxiliary mechanism (7) for welding; a connection assembly welding surface cleaning mechanism (8) for cleaning the surface of the connection assembly; and a locking mechanism (9) for limiting. The clamping mechanism (4) comprises a connecting rod (41), the outer side of the connecting rod (41) is connected to one end of a receiving portion (42), the other end of the receiving portion (42) is connected to a mounting frame (43), both ends of the mounting frame (43) are mounted with a moving handle (44), the bottom end of the moving handle (44) is provided with a moving deflection portion (45), and the outer side of the moving deflection portion (45) is connected to a clamping block (46) for fixing the connection assembly.

2. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 1, characterized in that: The clamping mechanism (4) is located between the first positioning mechanism (2) and the second positioning mechanism (3), and the clamping mechanism (4) and the first positioning mechanism (2) and the second positioning mechanism (3) clamp and fix the connection assembly.

3. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 1, characterized in that: The first positioning mechanism (2) comprises a working motor (21), and a rotating rod (22) is connected to the top end of the working motor (21); The top end of the handle (23) is connected to a connecting screw (24), the surface of the connecting screw (24) is sleeved with a first limit block (25) and a second limit block (28), a first connecting plate (26) is installed above the first limit block (25), and a first positioning rod (27) is connected above the first connecting plate (26); A second connecting plate (29) is connected above the second limiting block (28), and a second positioning rod (210) is installed at the top of the second connecting plate (29).

4. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 3, characterized in that: The first positioning rod (27) and the second positioning rod (210) are both cylindrical, and the first positioning rod (27) and the second positioning rod (210) clamp and fix the connection assembly; The first limiting block (25) and the second limiting block (28) are both sleeved on the surface of the connecting screw (24); the first limiting block (25) and the second limiting block (28) have opposite thread rotation directions at the places where the first limiting block (25) and the second limiting block (28) are sleeved on the connecting screw (24).

5. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 3, characterized in that: The connecting rod (41) is connected to the connecting screw (24), and the connection between the connecting rod (41) and the connecting screw (24) is connected via a receiving movable sleeve (241), and the movement of the receiving movable sleeve (241) drives the connecting rod (41) to move.

6. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 1, characterized in that: The fastening mechanism (5) comprises a moving rod (50), the moving rod (50) being mounted below the mounting frame (43), the inner side of the moving rod (50) being connected to one end of a moving frame (51), the other end of the moving frame (51) being connected to a connecting handle (52), the bottom end of the connecting handle (52) being connected to a mounting component block (53), the top end of the mounting component block (53) being connected to a component rod (54), and the surface of the component rod (54) being sleeved with a component sleeve (55).

7. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 1, characterized in that: The base support mechanism (6) comprises a base platform (61), a limit block (62) is installed on the top of the base platform (61), and a limit slot (63) is provided on the upper surface of the base platform (61).

8. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 1, characterized in that: The welding auxiliary mechanism (7) comprises a fixed stand (71), a stand rod (72) is fixedly installed above the fixed stand (71), and a welding head (73) is connected to the stand rod (72); The stand rod (72) is mounted on a movable plate (74), and the bottom end of the movable plate (74) is sleeved on a sliding assembly rod (75).

9. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 3, characterized in that: The connection assembly welding surface cleaning mechanism (8) comprises a first bevel gear (81), the first bevel gear (81) and the top surface of the connection screw (24), the outer surface of the first bevel gear (81) is meshed with a second bevel gear (82), a connecting rod (83) passes through the second bevel gear (82), the top end of the connecting rod (83) is connected to a third bevel gear (84), and the bottom end of the third bevel gear (84) is meshed with a fourth bevel gear (85); The bottom end of the fourth bevel gear (85) is connected to a rotating disc (86), and the bottom end of the rotating disc (86) is movably connected to a rotating rod (87); One end of the connecting shaft (88) is mounted on the surface of the rotating disc (86), and the other end of the connecting shaft (88) is connected to a moving rod (89). The bottom end of the moving rod (89) is inserted into a sliding groove (810), and the bottom end of the moving rod (89) slides in the sliding groove (810). The outer side of the moving rod (89) is connected to one end of a cleaning rod (811), and the other end of the cleaning rod (811) is connected to a cleaning brush (812) for cleaning the surface of the connection assembly. The bottom end of the connecting rod (83) is supported by a mounting seat (813).

10. A welding tool for the lower connection assembly of a motorcycle engine as claimed in claim 6, characterized in that: The receiving rod (91) on the locking mechanism (9) is connected to the connecting rod (41), and the receiving plate (92) is connected to the top end of the component rod (54). The outer side of the receiving plate (92) is connected to a first motion adjustment part (93). The first motion adjustment part (93) and the second motion adjustment part (94) are connected via a deflection axis (95). A locking frame (96) is installed on the outer side of the second motion adjustment part (94). The top end of the locking frame (96) is penetrated by an upper deflection shaft rod (97), and both ends of a lower deflection shaft rod (98) are fixed on a mounting column (99) and penetrate the locking frame (96).

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