Frame welding tool

Abstract

The utility model provides a frame welding tool. The frame welding tool comprises a workbench, a first positioning assembly, a second positioning assembly and a driving device. The first positioning assembly is fixedly arranged on the workbench and can support the frame in the Z direction and limit movement of the frame in the Y direction. The second positioning assembly is provided with a second check block fixedly arranged on the workbench and a second moving block movably arranged on the workbench, and the second moving block can push the frame to abut against the second check block after moving in the X direction. The driving device is used for driving the second moving block to move. The vehicle frame is placed on the first positioning assembly, at the moment, the vehicle frame is located between the second stop block and the second moving block, the driving device only needs to drive the second moving block to move and push the vehicle frame to abut against the second stop block, positioning of the vehicle frame can be achieved, operation is convenient, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frame welding fixtures, in particular to a vehicle frame welding fixture. Background Art

[0002] In the manufacturing process of the beach motorcycle frame, in addition to its main frame structure, various connectors need to be welded. The connectors serve as the installation basis for other subsequent structures, including the shock absorber upper mounting seat, foot pedal support, engine lower guard support, flat fork mounting plate, air filter bracket, rear shock absorber bracket, rear seat cushion mounting seat and shock absorber mounting reinforcement plate.

[0003] In the prior art, the welding of beach motorcycle frames usually uses fixtures for positioning. For example, patent CN219336632U discloses a frame parts welding positioning device, which limits the frame by setting a variety of limiting mechanisms, so that the frame can be accurately fixed on the workbench, providing a guarantee for the subsequent welding of connecting parts, but its structure is relatively complex and the operation is also relatively inconvenient. Summary of the invention

[0004] In view of the deficiencies existing in the prior art, the utility model provides a frame welding tool, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] The utility model provides a frame welding tool, comprising:

[0006] Workbench;

[0007] A first positioning assembly is fixedly arranged on the workbench, and can support the frame in the Z direction and limit the movement of the frame in the Y direction;

[0008] A second positioning assembly comprises a second stopper fixedly disposed on the workbench and a second moving block movably disposed on the workbench, wherein the second moving block can move along the X direction and then push the frame against the second stopper; and

[0009] A driving device is used to drive the second moving block to move.

[0010] Preferably, the frame includes a lower longitudinal beam arranged along the X direction at the bottom thereof;

[0011] The first positioning component comprises:

[0012] At least two first support blocks are provided for each of the lower longitudinal beams and are arranged along the length direction of the lower longitudinal beams, and are fixedly connected to the workbench, and the upper end surface of the first support block can support the lower end of the lower longitudinal beam; and

[0013] Two first limiting columns are provided on the upper end surface of each of the first supporting blocks;

[0014] The lower longitudinal beam is located between two of the first limiting columns on each corresponding first supporting block.

[0015] Preferably, the frame further comprises a lower cross beam arranged at its lower portion along the Y direction;

[0016] A positioning groove matched with the lower cross beam is formed on a surface of the second stop block facing the second moving block, and the lower cross beam can be located between the second stop block and the second moving block.

[0017] Preferably, the frame further comprises two upper cross beams symmetrically arranged along the Y direction at the upper portion thereof and an air filter bracket located between the two upper cross beams, wherein the air filter bracket comprises a first limit portion extending horizontally and a second limit portion extending downwardly from an end portion of the first limit portion;

[0018] The second positioning component also includes:

[0019] A first mounting block is fixedly connected to the workbench, one end of which can be located between the two upper beams and has a first mounting hole; and

[0020] A first plug-in block, the lower end of which is provided with a plug-in rod that can be slidably inserted into the first mounting hole, and both ends of which are provided with limiting grooves that fit with the first limiting portion and the second limiting portion;

[0021] The air filter bracket is inserted into the limiting groove on the same side along the horizontal direction through the first limiting portion and the second limiting portion; when the first plug-in block is slidably inserted into the first mounting hole through the plug-in rod, the ends of the air filter bracket at both ends of the first plug-in block abut against the upper cross beam on the same side.

[0022] Preferably, the vehicle frame further comprises an engine lower guard plate support, the engine lower guard plate support is U-shaped and has a second mounting hole on both arms;

[0023] The frame welding tool also includes:

[0024] A second mounting block is fixedly connected to the workbench and is located on one side of the lower longitudinal beam, and is provided with a through hole penetrating along the X direction;

[0025] Two second support blocks, the two second support blocks are respectively connected to the second mounting block on both sides in the X direction, and the upper ends of the second support blocks can be abutted against the lower ends of the double arms of the engine lower guard plate support; and

[0026] A first positioning pin having a pin head and a pin shaft, and the first positioning pin shaft can pass through the through hole on the second mounting block;

[0027] The two arms of the engine under guard plate support are located on both sides of the second mounting block; when the pin head of the first locating pin passes through the through hole on the second mounting block and the two second mounting holes at the same time, the pin head of the first locating pin abuts against the engine under guard plate support; the end of the engine under guard plate support away from the first locating pin abuts against the lower longitudinal beam and is fixed.

[0028] Preferably, two lower cross beams are symmetrically arranged, the frame further comprises two head connecting beams and a shock absorber upper mounting seat, the upper end of the head connecting beam is connected to the upper cross beam on the same side, the lower end of the head connecting beam is connected to the lower cross beam on the same side, the upper end of the shock absorber upper mounting seat is provided with two shock absorbing clearance grooves, the shock absorbing clearance grooves are matched with the lower end of the head connecting beam on the same side, and both ends of the shock absorber upper mounting seat are also provided with a first shock absorbing limit hole penetrating along the Y direction;

[0029] The second positioning component also includes:

[0030] A third mounting block is fixedly connected to the workbench, and is provided with a mounting notch extending upward along the Z direction corresponding to the upper mounting seat of the shock absorber, and is also provided with a second shock-absorbing limiting hole penetrating the mounting notch along the Y direction;

[0031] a fourth mounting block connected to the second moving block, a mounting notch extending upward along the Z direction corresponding to the mounting seat on the shock absorber, and a second shock-absorbing limiting hole penetrating the mounting notch along the Y direction; and

[0032] Two first shock-absorbing mounting pins are provided and can slide through the first shock-absorbing limiting hole and the second shock-absorbing limiting hole on the same side;

[0033] Both ends of the mounting seat on the shock absorber can move upward along the Z direction into the mounting notch on the same side.

[0034] Preferably, the frame further comprises an upper longitudinal beam and a rear shock absorber bracket arranged along the X direction, the two ends of the upper longitudinal beam are respectively connected to the two ends of the upper cross beam, one side of the rear shock absorber bracket can abut against the upper cross beam, and the upper cross beam can limit the rotation of the rear shock absorber bracket when abutting against the rear shock absorber bracket; the rear shock absorber bracket is provided with a third shock absorber limit hole penetrating along the X direction;

[0035] The second positioning component also includes:

[0036] a fifth mounting block, fixedly connected to the first mounting block, and having a fourth shock-absorbing limiting hole along the X direction; and

[0037] The second shock-absorbing mounting pin comprises a pin head and a pin rod, and the pin rod can pass through the third shock-absorbing limiting hole and then be inserted into the fourth shock-absorbing limiting hole.

[0038] Preferably, the frame further comprises a rear connecting bracket and two mutually symmetrical flat fork mounting plates, the upper end of the rear connecting bracket is connected to the two upper cross beams, the lower end of the rear connecting bracket is connected to the two lower cross beams, the rear connecting bracket and the head connecting beam are located at both ends of the upper cross beam, a flat fork mounting hole is provided on the flat fork mounting plate, and the first mounting block is provided with a first mounting column which can be inserted into the flat fork mounting hole;

[0039] The second positioning component also includes:

[0040] a sixth mounting block, fixedly connected to the workbench; and

[0041] A second mounting column connected to a side of the sixth mounting block facing away from the first mounting block and capable of passing through the flat fork mounting hole;

[0042] The first mounting column and the second mounting column are respectively located at the lower ends of the two upper cross beams; the outer edge of the flat fork mounting plate can be fitted with the tail connecting bracket.

[0043] Compared with the prior art, the utility model has the following beneficial effects:

[0044] In the utility model technology, the frame is placed on the first positioning assembly. At this time, the frame is located between the second stop block and the second moving block. The frame can be positioned by only driving the second moving block to push the frame against the second stop block. The operation is convenient and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0046] Figure 1 A three-dimensional diagram of a frame welding tool in one embodiment of the utility model;

[0047] Figure 2 for Figure 1 A three-dimensional diagram of the frame;

[0048] Figure 3 for Figure 2 Another stereogram of

[0049] Figure 4 for Figure 1 Another stereogram of

[0050] Figure 5 for Figure 1 A three-dimensional diagram of a frame welding tool (without the frame);

[0051] Figure 6 for Figure 1 Another stereogram of

[0052] Figure 7 for Figure 4 A stereogram of ;

[0053] Figure 8 for Figure 1 The stereogram at point B;

[0054] Fig. 9 for Figure 4 Stereoscopic diagram at C;

[0055] Fig.10 for Figure 6 Stereoscopic diagram at point D.

[0056] Reference numerals:

[0057] 10. Workbench;

[0058] 20. First positioning assembly; 21. First supporting block; 22. First limiting column;

[0059] 30. Second positioning assembly; 31. Second stopper; 311. Positioning slot; 32. Second moving block; 33. First mounting block; 331. First mounting hole; 332. First mounting column; 333. Mounting bracket; 34. First plug-in block; 341. Plug-in rod; 342. Limiting slot; 35. Second mounting block; 351. Second supporting block; 352. First positioning pin; 36. Third mounting block; 361. Mounting notch; 362. Second shock-absorbing limiting hole; 363. Seventh mounting block; 364. Eighth mounting block; 365. Locking pin; 37. Fourth mounting block; 371. First shock-absorbing mounting pin; 38. Fifth mounting block; 381. Fourth shock-absorbing limiting hole; 382. Second shock-absorbing mounting pin; 39. Sixth mounting block; 391. Second mounting column;

[0060] 40. Frame; 41. Lower longitudinal beam; 42. Lower cross beam; 43. Upper cross beam; 44. Head connecting beam; 45. Tail connecting bracket; 46. U-shaped bracket; 47. Rear seat cushion mounting seat; 48. Shock absorber mounting reinforcement plate; 481. Sleeve; 482. Support ear;

[0061] 50. Air filter bracket; 501. First limiting part; 502. Second limiting part; 51. Engine lower guard plate support; 511. Second mounting hole; 52. Shock absorber upper mounting seat; 521. Shock absorber clearance groove; 522. First shock absorber limiting hole; 53. Rear shock absorber bracket; 531. Third shock absorber limiting hole; 54. Flat fork mounting plate; 541. Flat fork mounting hole. DETAILED DESCRIPTION

[0062] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0063] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0064] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0066] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0067] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] See also Figures 1 to 10 The present embodiment provides a frame 40 welding tool, including a workbench 10, a first positioning assembly 20, a second positioning assembly 30 and a driving device (not shown).

[0069] The first positioning assembly 20 is fixedly arranged on the workbench 10, and can support the frame 40 in the Z direction, and can limit the movement of the frame 40 in the Y direction. The second positioning assembly 30 has a second stopper 31 fixedly arranged on the workbench 10 and a second movable block 32 movably arranged on the workbench 10, and the second movable block 32 can move along the X direction and then push the frame 40 against the second stopper 31. The driving device is used to drive the second movable block 32 to move. In addition, a groove can be provided on the second movable block 32 to match the corresponding position on the frame 40, so as to achieve a further limiting effect. More than one second movable block 32 can be provided, and it is arranged on the workbench 10 through a guide rail. The driving device can use an electric push rod, a hydraulic cylinder, etc. in the prior art to push the second movable block 32.

[0070] In this embodiment, the frame 40 is placed on the first positioning assembly 20. At this time, the frame 40 is located between the second stop block 31 and the second moving block 32. The driving device only needs to drive the second moving block 32 to move and push the frame 40 against the second stop block 31 to achieve the positioning of the frame 40. The operation is convenient and the structure is simple.

[0071] In one embodiment, the vehicle frame 40 includes a lower side beam 41 at the bottom thereof and arranged along the X direction.

[0072] The first positioning assembly 20 includes a first supporting block 21 and a first limiting column 22 .

[0073] At least two first support blocks 21 are provided for each lower longitudinal beam 41, and the first support blocks 21 are arranged along the length direction of the lower longitudinal beam 41. The first limiting columns 22 are fixedly connected to the workbench 10, and the upper end surface of the first limiting columns 22 can support the lower end of the lower longitudinal beam 41. Two first limiting columns 22 are provided on the upper end surface of each first support block 21. The lower longitudinal beam 41 is located between the two first limiting columns 22 on each corresponding first support block 21.

[0074] In this embodiment, two first support blocks 21 are arranged under each lower longitudinal beam 41 to support the lower longitudinal beam 41, and the first limiting columns 22 on the two first support blocks 21 guide the lower longitudinal beam 41, so that the lower longitudinal beam 41 can only move along the X direction, thereby limiting the movement of the frame 40 in the Y direction. The structure is relatively simple. During operation, it is only necessary to place the lower cross beam 42 at the lower part of the frame 40 between the two first limiting columns 22 of the first support blocks 21, which is relatively convenient to operate.

[0075] In one embodiment, the vehicle frame 40 further includes a lower cross beam 42 disposed at its lower portion along the Y direction. Two lower longitudinal beams 41 and two lower cross beams 42 are disposed at the lower portion of the vehicle frame 40 , and two ends of the lower longitudinal beam 41 are connected to the two lower cross beams 42 respectively.

[0076] A positioning groove 311 that fits with the lower crossbeam 42 is formed on the surface of the second stopper 31 facing the second moving block 32, and the lower crossbeam 42 can be located between the second stopper 31 and the second moving block 32. Specifically, a plurality of second stoppers 31 and second moving blocks 32 can be provided.

[0077] In this embodiment, the lower longitudinal beam 41 of the frame 40 is placed on the first support block 21 , and the driving device drives the second moving block 32 to abut against the lower cross beam 42 and push the lower cross beam 42 to move into the positioning groove 311 , thereby achieving positioning and fixing of the frame 40 .

[0078] In one embodiment, after the main frame of the vehicle frame 40, that is, the lower cross beam 42, the lower longitudinal beam 41 and the upper cross beam 43, etc. are positioned, the air filter bracket 50 in the connecting member is also positioned.

[0079] The vehicle frame 40 further includes two upper cross beams 43 symmetrically arranged along the Y direction at its upper portion and an air filter bracket 50 located between the two upper cross beams 43. The air filter bracket 50 has a first limit portion 501 extending horizontally and a second limit portion 502 extending downwardly from the end of the first limit portion 501. Specifically, the upper cross beam 43 can adopt a tubular structure, and the first limit portion 501 and the second limit portion 502 of the air filter bracket 50 are generally in an inverted "L" shape.

[0080] The second positioning assembly 30 further includes a first mounting block 33 and a first plug-in block 34 .

[0081] The first mounting block 33 is fixedly connected to the workbench 10, and one end of the first mounting block 33 can be located between the two upper beams 43 and has a first mounting hole 331. In addition, the first mounting block 33 can also abut against the vehicle frame 40 to limit the vehicle frame 40.

[0082] The lower end of the first plug-in block 34 is provided with a plug-in rod 341 that can be slidably inserted into the first mounting hole 331. Both ends of the first plug-in block 34 are provided with limiting grooves 342 that fit with the first limiting portion 501 and the second limiting portion 502. The limiting groove 342 is in an inverted "L" shape.

[0083] The air filter bracket 50 is inserted into the limiting groove 342 on the same side in the horizontal direction (specifically, in the X direction) through the first limiting portion 501 and the second limiting portion 502. At this time, the air filter bracket 50 is restricted by the limiting groove 342 and cannot move in the Y direction and the Z direction. When the first plug-in block 34 is slidably inserted into the first mounting hole 331 through the plug-in rod 341, the ends of the air filter bracket 50 at both ends of the first plug-in block 34 abut against the upper crossbeam 43 on the same side. At this time, the air filter bracket 50 is restricted by the upper crossbeam 43 and the plug-in block and cannot move in the X direction. At this time, after the positioning of the air filter bracket 50 is completed, the air filter bracket 50 can be welded to the crossbeam. Specifically, the side of the air filter bracket 50 that abuts against the upper crossbeam 43 is a curved surface and the curved surface fits the outer wall of the upper crossbeam 43.

[0084] In one embodiment, the engine lower guard plate support 51 in the connecting member is also positioned, and the engine lower guard plate support 51 is subsequently used to connect with the engine lower guard plate.

[0085] The vehicle frame 40 further includes an engine lower guard plate support 51 , which is U-shaped and has second mounting holes 511 formed on both arms.

[0086] The frame 40 welding tool further includes a second mounting block 35 , two second supporting blocks 351 and a first positioning pin 352 .

[0087] The second mounting block 35 is fixedly connected to the workbench 10 . The second mounting block 35 is located at one side of the lower longitudinal beam 41 . A through hole penetrating along the X direction is formed in the second mounting block 35 .

[0088] The two second support blocks 351 are respectively connected to the two sides of the second mounting block 35 in the X direction, and their upper ends can be against the lower ends of the two arms of the engine lower guard plate support 51. The first positioning pin 352 has a pin head and a pin rod, and the pin rod of the first positioning pin 352 can pass through the through hole on the second mounting block 35;

[0089] The two arms of the engine lower guard plate support 51 are located on both sides of the second mounting block 35. When the pin head of the first locating pin 352 passes through the through hole on the second mounting block 35 and the two second mounting holes 511 at the same time, the pin head of the first locating pin 352 abuts against the engine lower guard plate support 51. The end of the engine lower guard plate support 51 away from the first locating pin 352 abuts against the lower longitudinal beam 41 and is fixed. Specifically, the end of the engine lower guard plate support 51 away from the first locating pin 352 has a concave curved surface, the lower longitudinal beam 41 is cylindrical, and the curved end of the engine lower guard plate support 51 fits with the outer wall of the lower longitudinal beam 41.

[0090] In this embodiment, the engine lower guard plate support 51 is placed on the second mounting block 35, and the first positioning pin 352 is passed through the second mounting hole 511 and the through hole on the second mounting block 35. At this time, the pin head of the first positioning pin 352 is against the engine lower guard plate support 51, and the engine lower guard plate support 51 can no longer be pushed forward in the X direction by the first positioning pin 352, so that the engine lower guard plate support 51 is positioned in the X square. The first positioning pin 352 restricts the movement of the engine lower guard plate support 51 in the Y and Z directions, and the curved surface of the engine lower guard plate support 51 is against the outer wall of the lower longitudinal beam 41, restricting its own rotation.

[0091] In one embodiment, the shock absorber upper mounting seat 52 in the connecting member is also positioned. Two lower cross beams 42 are symmetrically arranged, and the frame 40 also includes two head connecting beams 44 and the shock absorber upper mounting seat 52. The upper end of the head connecting beam 44 is connected to the upper cross beam 43 on the same side, and the lower end of the head connecting beam 44 is connected to the lower cross beam 42 on the same side. The upper end of the shock absorber upper mounting seat 52 is provided with two shock absorbing clearance grooves 521, and the shock absorbing clearance grooves 521 are matched with the lower end of the head connecting beam 44 on the same side. Specifically, the shock absorbing clearance grooves 521 are matched with the lower end of the head connecting beam 44 on the same side and then fit each other. Both ends of the shock absorber upper mounting seat 52 are also provided with a first shock absorbing limit hole 522 that penetrates along the Y direction.

[0092] The second positioning assembly 30 further includes a third mounting block 36 , a fourth mounting block 37 and a first shock-absorbing mounting pin 371 .

[0093] The third mounting block 36 is fixedly connected to the workbench 10, and a mounting notch 361 extending upward along the Z direction is provided on the fourth mounting block 37 corresponding to the upper mounting seat 52 of the shock absorber, and a second shock absorbing limiting hole 362 penetrating the mounting notch 361 along the Y direction is also provided on the second mounting block 35. Specifically, the second shock absorbing limiting hole 362 penetrates the inner walls of both sides of the mounting notch 361.

[0094] There are multiple second moving blocks 32, which can be driven forward by the driving mechanism at the same time. The third mounting block 36 is connected to one of the second moving blocks 32. A mounting notch 361 extending upward along the Z direction is provided on the third mounting block 36 corresponding to the upper mounting seat 52 of the shock absorber, and a second shock-absorbing limiting hole 362 penetrating the mounting notch 361 along the Y direction is also provided thereon. Two first shock-absorbing mounting pins 371 are provided, and both ends of the upper mounting seat 52 of the shock absorber can move upward along the Z direction into the mounting notch 361 on the same side, and the first shock-absorbing mounting pin 371 can slide through the first shock-absorbing limiting hole 522 and the second shock-absorbing limiting hole 362 on the same side, thereby fixing the upper mounting seat 52 of the shock absorber in the mounting notch 361.

[0095] In this embodiment, under the push of the second moving block 32, the head connecting beam 44 moves into place. At this time, the second mounting block 35 and the third mounting block 36 are located on the outside of the head connecting beam 44 on the same side, and the shock absorber upper mounting seat 52 is moved upward from the bottom of the head connecting beam 44. When the shock-absorbing clearance groove 521 of the shock absorber upper mounting seat 52 is matched with the head connecting beam 44 on the same side, the two ends of the shock absorber upper mounting seat 52 also simultaneously rest against the mounting notch 361 on the same side. At this time, the first shock-absorbing mounting pin 371 is used to insert through the first limiting hole and the second limiting hole on the same side, thereby completing the positioning of the shock absorber upper mounting seat 52, and preparing for the subsequent welding of the shock absorber upper mounting seat 52 to the head connecting beam 44.

[0096] In one embodiment, the rear shock absorber bracket 53 is also positioned. The vehicle frame 40 further includes an upper longitudinal beam and a rear shock absorber bracket 53 arranged along the X direction. The two ends of the upper longitudinal beam are respectively connected to the two ends of the upper cross beam 43. One side of the rear shock absorber bracket 53 can abut against the upper cross beam 43. When the upper cross beam 43 abuts against the rear shock absorber bracket 53, its rotation can be restricted. Specifically, the upper cross beam 43 is cylindrical as a whole. One end of the rear shock absorber bracket 53 abutting against the upper cross beam 43 has a curved surface that matches the upper cross beam 43, so that the rear shock absorber bracket 53 cannot rotate. The rear shock absorber bracket 53 is provided with a third shock absorbing limit hole 531 that penetrates along the X direction.

[0097] The second positioning assembly 30 further includes a fifth mounting block 38 and a second shock-absorbing mounting pin 382 .

[0098] The fifth mounting block 38 is fixedly connected to the first mounting block 33, and is provided with a fourth shock-absorbing stop hole 381 along the X direction, which is located at the lower part of one side of the upper cross beam 43. The second shock-absorbing mounting pin 382 has a pin head and a pin rod. The pin rod of the second shock-absorbing mounting pin 382 can pass through the third shock-absorbing stop hole 531 and then be inserted into the fourth shock-absorbing stop hole 381, and the pin head can be against the rear shock-absorbing bracket 53.

[0099] In one embodiment, the fork mounting plate 54 is also positioned. The frame 40 further includes a rear connecting bracket 45 and two symmetrical fork mounting plates 54, and the fork mounting plates 54 need to be welded to the lower part of the rear connecting bracket 45. The upper end of the rear connecting bracket 45 is connected to the two upper cross beams 43, and the lower end of the rear connecting bracket 45 is connected to the two lower cross beams 42. The rear connecting bracket 45 and the head connecting beam 44 are located at both ends of the upper cross beam 43. A fork mounting hole 541 is provided on the fork mounting plate 54, and a first mounting column 332 that can be inserted into the fork mounting hole 541 and has an interference fit therewith is provided on the first mounting block 33.

[0100] The second positioning assembly 30 further includes a sixth mounting block 39 and a second mounting column 391 .

[0101] The sixth mounting block 39 is fixedly connected to the workbench 10. The second mounting column 391 is connected to a side of the sixth mounting block 39 that faces away from the first mounting block 33. The second mounting column 391 can pass through the flat fork mounting hole 541 and have an interference fit therewith.

[0102] The first mounting column 332 and the second mounting column 391 are respectively located at the lower ends of the two upper cross beams 43 ; the outer edge of the flat fork mounting plate 54 can be fitted with the tail connecting bracket 45 .

[0103] In this embodiment, the tail connection bracket 45 is placed on the side of the first mounting block 33 and covers the second mounting block 35. There are two mounting positions for mounting the flat fork mounting plate 54 on the tail connection bracket 45. As the tail connection bracket 45 approaches the first mounting block 33, the mounting positions of the two flat fork mounting plates 54 approach the first mounting block 33 and the second mounting block 35 on the same side along the X direction until they abut against each other. Then, the two flat fork mounting plates 54 are sleeved on the first mounting column 332 and the second mounting column 391 through the flat fork mounting holes 541. At this time, the flat fork mounting plates 54 abut against the end faces of the first mounting block 33 and the second mounting block 35 on the same side to achieve positioning.

[0104] The frame 40 also includes a U-shaped support beam 46, a rear seat cushion mounting seat and a shock absorber mounting reinforcement plate 48. The U-shaped support beam 46 is arranged obliquely and its two ends are respectively connected to the two upper cross beams 43. A mounting bracket 333 is provided on the first mounting block 33, and another mounting bracket 333 is provided on one of the second movable blocks 32. When the second movable block 32 is close to the first mounting block 33, the two mounting brackets 333 are located above the U-shaped support beam 46. The lower end of the rear seat cushion mounting seat is inclined, and its projection on the horizontal plane is a rectangle, that is, the rear seat cushion mounting seat 47 slides down along the Y direction on the inclined U-shaped support beam 46 and abuts against the mounting brackets 333 at both ends, and the two end faces of the rear seat cushion mounting seat along the X direction are in contact with the mounting brackets 333 at both ends.

[0105] The shock absorber mounting reinforcement plate 48 is elliptical in shape and has through holes at both ends. Two sleeves 481 are connected to the shock absorber mounting reinforcement plate 48. One end of the two sleeves 481 away from the shock absorber mounting reinforcement plate 48 is connected to a support ear 482, and the support ear 482 has a through hole.

[0106] The third mounting block 36 is connected to a seventh mounting block 363 and an eighth mounting block 364. The seventh mounting block 363 may be located below the head connecting beam 44, and the eighth mounting block 364 may be located above the head connecting beam 44. The seventh mounting block 363 is provided with a groove for placing the shock absorber mounting reinforcement plate 48. The eighth mounting block 364 is provided with two through holes, and a locking pin 365 may be inserted into the through holes.

[0107] When the head connecting beam 44 moves to above the seventh mounting block 363, the shock absorber mounting reinforcement plate 48 is placed in the groove of the seventh mounting block 363. At this time, the two sleeves 481 and the ears 482 are just located on both sides of the two head connecting beams 44, and the ends of the ears 482 are just in contact with the side walls of the head connecting beam 44. The locking pin 365 passes through the through hole on the eighth mounting block 364 and then continues to pass through the through hole of the ear 482, the sleeve 481 and the through hole of the shock absorber mounting reinforcement plate 48, thereby positioning the sleeve 481, the ear 482 and the shock absorber mounting reinforcement plate 48, and subsequently the ear 482 is welded to the head connecting beam 44.

[0108] After positioning the frame of the frame 40 , the frame 40 welding tool can continue to position the connecting parts of the frame 40 (shock absorber upper mounting seat 52 , foot pedal support, engine lower guard plate support 51 , flat fork mounting plate 54 , air filter bracket 50 , rear shock absorber bracket 53 , rear seat cushion mounting seat and shock absorber mounting reinforcement plate 48 ), so as to facilitate the subsequent welding of the connecting parts and the frame of the frame 40 .

[0109] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A frame welding tool, characterized in that: include: Workbench (10); A first positioning assembly (20) is fixedly arranged on the workbench (10) and can support the frame (40) in the Z direction and limit the movement of the frame (40) in the Y direction; a second positioning assembly (30), comprising a second stopper (31) fixedly arranged on the workbench (10) and a second movable block (32) movably arranged on the workbench (10), wherein the second movable block (32) can move along the X direction and then push the vehicle frame (40) against the second stopper (31); and A driving device is used to drive the second moving block (32) to move.

2. A frame welding tool as claimed in claim 1, characterized in that: The vehicle frame (40) comprises a lower longitudinal beam (41) located at the bottom thereof and arranged along the X direction; The first positioning component (20) comprises: a first support block (21), at least two of which are provided for each lower longitudinal beam (41), and are arranged along the length direction of the lower longitudinal beam (41), and are fixedly connected to the workbench (10), and the upper end surface of the first support block (21) can support the lower end of the lower longitudinal beam (41); and Two first limiting columns (22) are arranged on the upper end surface of each of the first supporting blocks (21); The lower longitudinal beam (41) is located between two of the first limiting columns (22) on each corresponding first supporting block (21).

3. A frame welding tool as claimed in claim 2, characterized in that: The vehicle frame (40) further comprises a lower cross beam (42) arranged at its lower portion along the Y direction; A positioning groove (311) that fits with the lower crossbeam (42) is provided on a surface of the second stop block (31) facing the second moving block (32); the lower crossbeam (42) can be located between the second stop block (31) and the second moving block (32).

4. A frame welding tool as claimed in claim 3, characterized in that: The vehicle frame (40) further comprises two upper cross beams (43) arranged symmetrically on its upper portion along the Y direction and an air filter bracket (50) located between the two upper cross beams (43); the air filter bracket (50) comprises a first limiting portion (501) extending horizontally and a second limiting portion (502) extending downwardly from an end of the first limiting portion (501); The second positioning component (30) further comprises: A first mounting block (33) is fixedly connected to the workbench (10), one end of which can be located between the two upper beams (43) and has a first mounting hole (331); and A first plug-in block (34), the lower end of which is provided with an plug-in rod (341) that can be slidably inserted into the first mounting hole (331), and both ends of which are provided with limiting grooves (342) that fit with the first limiting portion (501) and the second limiting portion (502); The air filter bracket (50) is inserted into the limiting groove (342) on the same side along the horizontal direction through the first limiting portion (501) and the second limiting portion (502); when the first plug-in block (34) is slidably inserted into the first mounting hole (331) through the plug-in rod (341), the ends of the air filter bracket (50) at both ends of the first plug-in block (34) abut against the upper cross beam (43) on the same side.

5. A frame welding tool as described in any one of claims 2 to 4, characterized in that: The vehicle frame (40) further comprises an engine lower guard plate support (51), wherein the engine lower guard plate support (51) is U-shaped and has second mounting holes (511) formed on both arms thereof; The vehicle frame (40) welding tool further comprises: A second mounting block (35) is fixedly connected to the workbench (10), is located on one side of the lower longitudinal beam (41), and is provided with a through hole penetrating along the X direction; Two second support blocks (351), the two second support blocks (351) are respectively connected to the second mounting block (35) on both sides in the X direction, and the upper ends of the second support blocks (351) can abut against the lower ends of the two arms of the engine lower guard plate support (51); and A first positioning pin (352) having a pin head and a pin shaft portion, and the pin shaft portion of the first positioning pin (352) can pass through a through hole on the second mounting block (35); The two arms of the engine lower guard plate support (51) are located on both sides of the second mounting block (35); when the pin head of the first positioning pin (352) passes through the through hole on the second mounting block (35) and the two second mounting holes (511) at the same time, the pin head of the first positioning pin (352) abuts against the engine lower guard plate support (51); and the end of the engine lower guard plate support (51) away from the first positioning pin (352) abuts against the lower longitudinal beam (41) and is fixed.

6. A vehicle frame welding tool as claimed in claim 4, characterized in that: Two lower cross beams (42) are symmetrically arranged, and the vehicle frame (40) further comprises two head connecting beams (44) and a shock absorber upper mounting seat (52), wherein the upper end of the head connecting beam (44) is connected to the upper cross beam (43) on the same side, and the lower end of the head connecting beam (44) is connected to the lower cross beam (42) on the same side, and the upper end of the shock absorber upper mounting seat (52) is provided with two shock absorbing clearance grooves (521), and the shock absorbing clearance grooves (521) are matched with the lower end of the head connecting beam (44) on the same side, and both ends of the shock absorber upper mounting seat (52) are also provided with a first shock absorbing limit hole (522) penetrating along the Y direction; The second positioning component (30) further comprises: A third mounting block (36) is fixedly connected to the workbench (10), and is provided with a mounting notch (361) extending upward along the Z direction at a position corresponding to the upper mounting seat (52) of the shock absorber, and is also provided with a second shock-absorbing limiting hole (362) penetrating the mounting notch (361) along the Y direction; a fourth mounting block (37), connected to one of the second moving blocks (32), having a mounting notch (361) extending upward along the Z direction at a position corresponding to the upper mounting seat (52) of the shock absorber, and also having a second shock-absorbing limiting hole (362) penetrating the mounting notch (361) along the Y direction; and Two first shock-absorbing mounting pins (371) are provided and can slide through the first shock-absorbing limiting hole (522) and the second shock-absorbing limiting hole (362) on the same side; Both ends of the shock absorber upper mounting seat (52) can move upwards along the Z direction into the mounting notch (361) on the same side.

7. A vehicle frame welding tool as claimed in claim 4, characterized in that: The vehicle frame (40) further comprises an upper longitudinal beam and a rear shock absorbing bracket (53) arranged along the X direction, the two ends of the upper longitudinal beam being respectively connected to the two ends of the upper cross beam (43), one side of the rear shock absorbing bracket (53) being able to abut against the upper cross beam (43), and the rotation of the upper cross beam (43) and the rear shock absorbing bracket (53) being limited when the upper cross beam (43) and the rear shock absorbing bracket (53) are abutted against each other; the rear shock absorbing bracket (53) is provided with a third shock absorbing limiting hole (531) penetrating along the X direction; The second positioning component (30) further comprises: a fifth mounting block (38), fixedly connected to the first mounting block (33), and having a fourth shock-absorbing limiting hole (381) along the X direction; and The second shock-absorbing mounting pin (382) comprises a pin head and a pin shaft portion, and the pin shaft portion can pass through the third shock-absorbing limiting hole (531) and then be inserted into the fourth shock-absorbing limiting hole (381).

8. A vehicle frame welding tool as claimed in claim 6, characterized in that: The frame (40) further comprises a rear connecting bracket (45) and two mutually symmetrical flat fork mounting plates (54), the upper end of the rear connecting bracket (45) being connected to the two upper cross beams (43), the lower end of the rear connecting bracket (45) being connected to the two lower cross beams (42), the rear connecting bracket (45) and the head connecting beam (44) being located at two ends of the upper cross beam (43), the flat fork mounting plate (54) being provided with a flat fork mounting hole (541), and the first mounting block (33) being provided with a first mounting column (332) which can be inserted into the flat fork mounting hole (541); The second positioning component (30) further comprises: a sixth mounting block (39) fixedly connected to the workbench (10); and A second mounting column (391) connected to a surface of the sixth mounting block (39) facing away from the first mounting block (33) and capable of passing through the flat fork mounting hole (541); The first mounting column (332) and the second mounting column (391) are respectively located at the lower ends of the two upper cross beams (43); and the outer edge of the flat fork mounting plate (54) can fit with the tail connecting bracket (45).

Images