A welding fixture for manufacturing a plastic part of a battery car

Abstract

This invention relates to the field of welding fixture technology and provides a welding fixture for manufacturing molds for plastic parts of electric vehicles. The fixture includes a back plate and two side supports, which are respectively fixedly installed on both sides of the back plate. Each side support is equipped with a mold clamping mechanism, which works together to fix the mold. Each mold clamping mechanism includes an assembly seat that is slidably mounted on the side supports. A telescopic rail is slidably mounted on the assembly seat, and an L-shaped bracket is fixedly mounted on the telescopic rail. A hydraulic cylinder seat is fixedly mounted on the top of the assembly seat, and a telescopic hydraulic cylinder is fixedly mounted on the hydraulic cylinder seat. This welding fixture for manufacturing molds for plastic parts of electric vehicles solves the problems of laborious loading and unloading, and potential damage to personnel and molds associated with existing fixtures. It also flexibly adapts to the welding requirements of different molds, improving the convenience and accuracy of mold welding.

Description

Technical Field

[0001] This invention belongs to the field of welding fixture technology, and particularly relates to a welding fixture for manufacturing molds for plastic parts of electric vehicles. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping.

[0003] Molds have many parts and require precision. Welding is a common manufacturing method, and it is also used to repair minor damage. Currently, when welding molds, welding fixtures are needed to suspend them because multiple surfaces of the mold may have welding surfaces.

[0004] Most welding fixtures currently in use have a platform surface, which is usually a certain height from the ground, typically around one meter. This requires direct transport to the top. While this height makes operation convenient, it is more difficult to unload and load heavy molds, which can easily cause personnel to be crushed or injured, and can also easily damage the molds. Summary of the Invention

[0005] This invention provides a welding fixture for manufacturing molds for plastic parts of electric vehicles, aiming to solve the problems mentioned in the background art.

[0006] To solve the above problems, the present invention provides a welding fixture for manufacturing molds of plastic parts for electric bicycles, comprising: a back plate and two side supports, the two side supports being fixedly installed on both sides of the back plate respectively, and each of the two side supports being equipped with a mold clamping mechanism, the two mold clamping mechanisms working together to fix the mold; each mold clamping mechanism includes an assembly seat that is slidably mounted on the side supports, a telescopic rail being slidably mounted on the assembly seat, an L-shaped bracket being fixedly mounted on the telescopic rail, a cylinder seat being fixedly mounted on the top of the assembly seat, a telescopic cylinder being fixedly mounted on the cylinder seat, the output rod of the telescopic cylinder being fixedly connected to the L-shaped bracket for driving the telescopic rail and the L-shaped bracket to move, a rotating shaft being rotatably mounted on the L-shaped bracket, a U-shaped bracket being fixedly mounted on the rotating shaft, a bidirectional lifting screw being rotatably mounted on the U-shaped bracket, and two lifting seats being threaded onto the bidirectional lifting screw. Both lifting seats are slidably connected to U-shaped brackets. Splined cylinders are slidably installed on both lifting seats, and splined rods are slidably installed inside both splined cylinders. Fixed blocks are fixedly installed at opposite ends of the splined cylinders and splined rods. The same L-shaped bracket is fixedly installed on the two corresponding fixed blocks. The four L-shaped brackets cooperate to fasten and fix the mold. Fixed blocks are fixedly installed on the four L-shaped brackets. Two fixed blocks at the same height are connected by the same bidirectional spacing adjustment screw to make their spacing adjustable for mold welding. A motor frame and a steering motor are installed on one of the mold clamping mechanisms. The motor frame is fixedly installed on the corresponding L-shaped bracket, and the steering motor is fixedly installed on the motor frame. Differential wheels are fixedly installed on the output shaft of the steering motor and the corresponding rotating shaft. The two differential wheels mesh to drive the mold to adjust its direction.

[0007] Preferably, each of the two side supports is rotatably mounted with a lifting stud, and the two lifting studs are threaded through the two mounting seats respectively, for driving the two to rise and fall synchronously, thereby adjusting the mold processing height. The two mounting seats are slidably connected to the two side supports respectively.

[0008] Preferably, each of the two side supports is fixedly mounted with a bearing seat, and the same synchronous long shaft is rotatably mounted on the two bearing seats. A power motor is mounted on one of the side supports. A synchronous pulley is fixedly mounted on both the output shaft of the power motor and the synchronous long shaft. The same synchronous belt is sleeved on both synchronous pulleys to drive the synchronous long shaft to rotate. A transmission shaft is rotatably mounted on each of the two side supports. A bevel gear is fixedly mounted on the same end of the two transmission shafts and on both ends of the synchronous long shaft. The two corresponding bevel gears mesh with each other to drive the two transmission shafts to rotate synchronously. A guide shaft is fixedly mounted on the top of each of the two lifting studs. The two guide shafts are rotatably connected to the two side supports respectively. A bevel gear is fixedly mounted on the top of each guide shaft and on each of the two transmission shafts. The two corresponding bevel gears mesh with each other to drive the guide shafts and the lifting studs to rotate, thereby causing the two mounting seats to rise and fall synchronously.

[0009] Preferably, a storage seat is slidably installed at the bottom of the back plate. The storage seat is located between the two mold clamping mechanisms and is used to temporarily place the mold. The extension and retraction of the storage seat are synchronized with the raising and lowering of the mold clamping mechanism by the lifting screw. That is, when the storage seat retracts, the mold clamping mechanism rises.

[0010] Preferably, guide rails and moving racks are fixedly installed on both sides of the storage seat, and both guide rails and moving racks slide through the back plate. Multiple moving wheels are rotatably installed on the bottom of the storage seat for supporting movement.

[0011] Preferably, a displacement drive shaft is rotatably mounted on the back plate, and a displacement gear is fixedly mounted at the bottom end of the displacement drive shaft. The displacement gear meshes with a moving rack to drive the displacement drive shaft to extend and retract the storage seat. A bevel gear is fixedly mounted on the top end of the displacement drive shaft and on the synchronous long shaft. The two bevel gears mesh with each other to drive the synchronous long shaft to rotate the displacement drive shaft.

[0012] Preferably, a connecting strip is fixedly installed on the bottom side of each of the two side brackets, and the connecting strip is provided with multiple bolt holes.

[0013] Preferably, the mounting base has a track groove that is adapted to a telescopic track, and the cylinder base has a clearance slot for the extension and retraction of the L-shaped bracket.

[0014] Preferably, both ends of the bidirectional lifting screw are provided with screw grooves, and the lifting seat is provided with a through hole for the spline cylinder to pass through.

[0015] Preferably, the bottom of the storage seat is provided with a roller groove, and the movable wheel is installed in the roller groove.

[0016] Compared with related technologies, the welding fixture for manufacturing plastic parts molds for electric vehicles provided by this invention has the following advantages: Compared with existing technologies, the welding fixture for manufacturing plastic parts molds for electric vehicles provided by this solution not only solves the problems of laborious loading and unloading, and easy damage to personnel and molds caused by existing fixtures, but also can flexibly adapt to the welding requirements of different molds, improving the convenience and accuracy of mold welding. Attached Figure Description

[0017] Figure 1 This is a top-view three-dimensional structural schematic diagram provided by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure viewed from below provided by the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure; Figure 5 This is a bottom-view three-dimensional structural diagram of the mold clamping mechanism; Figure 6 This is a top-view three-dimensional structural diagram of the mold clamping mechanism; Figure 7 This is a schematic diagram of the front sectional view of the mold clamping mechanism; Figure 8 for Figure 7 An enlarged structural diagram of section C shown in the figure; Figure 9 A three-dimensional structural diagram of the lifting seat and L-shaped card slot from below; Figure 10 This is a three-dimensional structural diagram of the shelf section viewed from below. Figure 11 A bottom-view three-dimensional structural diagram of the side support and lifting stud; Figure 12 for Figure 11 An enlarged structural diagram of part D shown in the figure; Figure 13 A rear-view three-dimensional structural diagram of the stabilizing support mechanism; Figure 14 A front-view three-dimensional structural diagram of the stabilizing support mechanism; Figure 15 This is a structural diagram of the mounting base, lifting stud, and polished shaft.

[0018] Reference numerals: 1. Back plate; 2. Side bracket; 3. Mounting seat; 4. Telescopic rail; 5. L-shaped bracket; 6. Cylinder seat; 7. Telescopic cylinder; 8. Rotary shaft; 9. U-shaped bracket; 10. Bidirectional lifting screw; 11. Lifting seat; 12. Splined cylinder; 13. Splined rod; 14. Fixing block one; 15. L-shaped card seat; 16. Fixing block two; 17. Bidirectional spacing adjustment screw; 18. Motor frame; 19. Steering motor; 20. Differential wheel; 21. Lifting stud; 22. Shaft seat; 23. Synchronous long shaft; 24. Power motor; 25. Synchronous pulley one; 26. Synchronous belt one; 27. Transmission shaft; 28. Bevel gear one; 29. ​​Polished shaft; 30. Bevel gear 31. Wheel 2; 32. Storage seat; 33. Guide rail; 34. Moving rack; 35. Moving wheel; 36. Displacement drive shaft; 37. Displacement gear; 38. Bevel gear 3; 39. Support plate; 40. U-shaped storage rack; 41. Stabilizing support plate; 42. Guide bar plate 1; 43. Horizontal movement screw 1; 44. Circular gear; 45. Assembly plate; 46. Guide bar plate 2; 47. Horizontal movement screw 2; 48. Moving block; 49. Drive rack; 50. Gear assembly; 51. Synchronous wheel 2; 52. Synchronous belt 2; 53. Adaptive disc; 54. Telescopic support bar; 55. Adaptive ring; 56. Adaptive spring; 57. Limiting block; 58. Positioning block; 59. Vertical plate. Detailed Implementation

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This invention provides a welding fixture for manufacturing molds for plastic parts of electric bicycles, such as... Figure 1-15As shown, the welding fixture for manufacturing plastic parts molds for electric bicycles includes: a back plate 1 and two side supports 2. The two side supports 2 are respectively fixedly installed on both sides of the back plate 1. Each of the two side supports 2 is equipped with a mold clamping mechanism, which works together to fix the mold. The mold clamping mechanism includes an assembly seat 3 that is slidably mounted on the side supports 2. A telescopic rail 4 is slidably mounted on the assembly seat 3. An L-shaped bracket 5 is fixedly mounted on the telescopic rail 4. A cylinder seat 6 is fixedly mounted on the top of the assembly seat 3. A telescopic cylinder 7 is fixedly mounted on the cylinder seat 6. The output rod of the telescopic cylinder 7 is fixedly connected to the L-shaped bracket 5 and is used to drive the telescopic rail 4 and the L-shaped bracket 5 to move. A rotating shaft 8 is rotatably mounted on the L-shaped bracket 5. A U-shaped bracket 9 is fixedly mounted on the rotating shaft 8. A bidirectional lifting screw 10 is rotatably mounted on the U-shaped bracket 9. Two lifting seats 11 are threaded onto the bidirectional lifting screw 10. Both lifting seats 11 slide with the U-shaped bracket 9. The connection includes two lifting seats 11, each with a slidably mounted splined cylinder 12, and each with a slidably mounted splined rod 13 inside. A fixing block 14 is fixedly mounted on the opposite end of each splined cylinder 12 and splined rod 13. The same L-shaped bracket 15 is fixedly mounted on each of the two corresponding fixing blocks 14. The four L-shaped brackets 15 cooperate to fasten and fix the mold. A fixing block 26 is fixedly mounted on each of the four L-shaped brackets 15. Two fixing blocks 26 at the same height are connected by the same bidirectional spacing adjusting screw 17 to make their spacing adjustable for mold welding. One of the mold clamping mechanisms is equipped with a motor frame 18 and a steering motor 19. The motor frame 18 is fixedly mounted on the corresponding L-shaped bracket 5, and the steering motor 19 is fixedly mounted on the motor frame 18. Differential wheels 20 are fixedly mounted on the output shaft of the steering motor 19 and the corresponding rotating shaft 8. The two differential wheels 20 mesh to drive the mold to adjust its direction.

[0021] In this embodiment, the welding fixture is used as follows: First, the mold of the electric vehicle plastic part to be welded is placed between four L-shaped brackets 15. Then, the bidirectional spacing adjustment screw 17 is rotated. The bidirectional spacing adjustment screw 17 drives two fixed blocks 16 at the same height to move relative to or towards each other. The fixed blocks 16 drive the corresponding L-shaped brackets 15 to adjust the spacing until the four L-shaped brackets 15 precisely engage with the mold. Then, the bidirectional lifting screw 10 is rotated, which drives two lifting seats 11 to slide along the U-shaped bracket 9, adjusting the height of the two lifting seats 11, and thus adjusting the height of the L-shaped brackets 15, completing the initial positioning of the mold; Start Telescopic cylinder 7, the output rod of telescopic cylinder 7 pushes L-shaped bracket 5 to move along telescopic track 4, telescopic track 4 drives assembly seat 3 to move laterally along side bracket 2, adjusting the width of mold to fit; then lift assembly seat 3 to raise mold to working height; during adjustment, start steering motor 19, the output shaft of steering motor 19 drives corresponding differential wheel 20 to rotate, differential wheel 20 drives another differential wheel 20 meshing with it to rotate, thereby driving rotating shaft 8 to rotate, rotating shaft 8 drives U-shaped bracket 9 and mold fixed on it to rotate synchronously, adjusting the welding surface orientation of mold until the required welding angle is reached, and mold welding operation can begin; The side supports 2 of this welding fixture provide fixed support for the back plate 1. The mold clamping mechanisms on the two side supports 2 cooperate with each other to achieve stable fixation of the mold. In the mold clamping mechanism, the mounting base 3 can be raised and lowered along the side supports 2, and the telescopic track 4 can slide along the mounting base 3. With the driving action of the telescopic cylinder 7, the position of the L-shaped support 5 can be flexibly adjusted. The rotating shaft 8 on the L-shaped support 5 can drive the U-shaped support 9 to rotate. The steering motor 19 provides power for the rotation of the rotating shaft 8 through the meshing transmission of the differential wheel 20, realizing the flexible adjustment of the mold orientation. When the bidirectional lifting screw 10 on the frame 9 rotates, it can drive the two lifting seats 11 to slide along the U-shaped bracket 9, adjust the height of the two lifting seats 11, and thus adjust the height of the L-shaped bracket 15; the sliding fit between the spline cylinder 12 and the spline rod 13 can guide the spacing adjustment, ensuring that the L-shaped bracket 15 can fit tightly against the mold; the bidirectional spacing adjustment screw 17 can precisely adjust the spacing of the two corresponding L-shaped brackets 15 by connecting two fixing blocks 16 at the same height, so as to realize the adaptation and fixation of molds of different sizes and ensure the stability of the mold during the welding process; This welding fixture, through the interlocking of four L-shaped clamps 15 and the spacing adjustment function of the bidirectional spacing adjustment screw 17, can adapt to different sizes of electric vehicle plastic parts molds, and provides a stable fixation effect, preventing mold displacement during welding and ensuring welding accuracy. The sliding fit between the spline cylinder 12 and the spline rod 13 can flexibly adapt to the shape deviation of the mold, allowing the L-shaped clamps 15 to fit tightly against the mold surface, further improving the stability of the fixation, while avoiding damage to the mold surface. The telescopic cylinder 7 drives the telescopic rail 4 and the L-shaped bracket 5 to move, cooperating with the mounting base 3 along the side support. The lifting mechanism of frame 2 allows for flexible adjustment of the mold height, eliminating the need for manual handling of molds for loading and unloading, reducing the labor intensity of operators, and preventing safety accidents such as crushing or bumping of personnel caused by handling heavy molds. The steering motor 19 drives the rotating shaft 8 to rotate through the differential wheel 20, adjusting the mold's orientation. This eliminates the need for manual adjustment of the mold angle, enabling welding of multiple welding surfaces of the mold and improving welding efficiency. The entire fixture not only solves the problems of laborious loading and unloading and easy damage to personnel and molds caused by existing fixtures, but also flexibly adapts to the welding needs of different molds, improving the convenience and accuracy of mold welding.

[0022] In a further preferred embodiment of the present invention, lifting studs 21 are rotatably mounted on both side supports 2. The two lifting studs 21 are threaded through the two mounting seats 3 respectively, and are used to drive the two to lift synchronously, thereby adjusting the mold processing height. The two mounting seats 3 are slidably connected to the two side supports 2 respectively.

[0023] In this embodiment, the lifting studs 21 rotatably mounted on the side brackets 2 are threaded through the two mounting seats 3 respectively, and the two mounting seats 3 are slidably connected to the two side brackets 2 respectively. Rotating the lifting studs 21 can drive the mounting seats 3 to slide smoothly along the side brackets 2, realize the synchronous lifting of the two mounting seats 3, and thus accurately adjust the processing height of the mold.

[0024] In a further preferred embodiment of the present invention, a bearing seat 22 is fixedly mounted on each of the two side supports 2, and the same synchronous long shaft 23 is rotatably mounted on the two bearing seats 22. A power motor 24 is mounted on one of the side supports 2, and a synchronous pulley 25 is fixedly mounted on both the output shaft of the power motor 24 and the synchronous long shaft 23. The same synchronous belt 26 is sleeved on the two synchronous pulleys 25 so that the power motor 24 drives the synchronous long shaft 23 to rotate. A transmission shaft 27 is rotatably mounted on each of the two side supports 2, and the same end of the two transmission shafts 27 and the two ends of the synchronous long shaft 23 are connected to the synchronous long shaft 23. Each end is fixedly equipped with a bevel gear 28, and the two corresponding bevel gears 28 mesh with each other so that the synchronous long shaft 23 drives the two transmission shafts 27 to rotate synchronously. The top ends of the two lifting studs 21 are fixedly equipped with a smooth rod shaft 29, and the two smooth rod shafts 29 are rotatably connected to the two side brackets 2 respectively. The top ends of the two smooth rod shafts 29 and the two transmission shafts 27 are fixedly equipped with bevel gears 30, and the two corresponding bevel gears 30 mesh with each other so that the transmission shafts 27 drive the smooth rod shafts 29 and the lifting studs 21 to rotate, thereby causing the two mounting seats 3 to rise and fall synchronously.

[0025] In this embodiment, the bearing seat 22 provides rotational support for the synchronous long shaft 23. A power motor 24 on one of the side supports 2 provides power for the rotation of the synchronous long shaft 23 through the cooperation of a synchronous pulley 25 and a synchronous belt 26, achieving smooth rotation of the synchronous long shaft 23. Transmission shafts 27 are rotatably mounted on both side supports 2. The bevel gears 28 at both ends of the synchronous long shaft 23 mesh with the bevel gear 28 at one end of the transmission shaft 27, transmitting the rotation of the synchronous long shaft 23 to the two transmission shafts 27, achieving synchronous rotation of the two transmission shafts 27. Two lifting screws... Each column 21 has a fixed top end with a smooth shaft 29, which is rotatably connected to the side bracket 2. The bevel gear 30 on the transmission shaft 27 meshes with the bevel gear 30 at the top end of the smooth shaft 29, which can transmit the rotation of the transmission shaft 27 to the smooth shaft 29, thereby driving the lifting stud 21 to rotate synchronously. The lifting stud 21 is threaded through the two mounting seats 3 respectively, and the mounting seats 3 are slidably connected to the side bracket 2. The rotation of the lifting stud 21 can drive the mounting seats 3 to slide smoothly along the side bracket 2, realizing the synchronous lifting of the two mounting seats 3, thereby accurately adjusting the processing height of the mold. The bearing seats 22 on the two side supports 2 provide stable support for the synchronous long shaft 23. The power motor 24 drives the synchronous long shaft 23 to rotate through the synchronous pulley 25 and the synchronous belt 26. With the transmission action of the bevel gear 28, the transmission shaft 27, the bevel gear 30 and the smooth shaft 29, the synchronous rotation of the two lifting studs 21 is realized, which in turn drives the two assembly seats 3 to rise and fall synchronously. This replaces the manual rotation of the lifting studs 21, reduces the labor intensity of the operators, and ensures the synchronicity and accuracy of the lifting adjustment. It avoids tilting and deviation during the lifting of the mold, eliminates the need for manual handling of the mold for loading and unloading, and avoids safety accidents such as personnel crushing and bumping caused by handling heavy molds.

[0026] In a further preferred embodiment of the present invention, a storage seat 31 is slidably installed at the bottom of the back plate 1. The storage seat 31 is located between two mold clamping mechanisms and is used to temporarily place the mold. The extension and retraction of the storage seat 31 are synchronized with the lifting stud 21 lifting and lowering the mold clamping mechanism, that is: when the storage seat 31 retracts, the mold clamping mechanism rises.

[0027] In this embodiment, the storage seat 31 at the bottom of the back plate 1 is located between the two mold clamping mechanisms, which can temporarily place the mold, making it convenient for the mold to be transferred and positioned. The extension and retraction of the storage seat 31 are synchronized with the lifting stud 21 lifting the mold clamping mechanism. When the storage seat 31 retracts, the mold clamping mechanism rises synchronously, realizing the coordinated action of mold lifting and storage seat 31.

[0028] In a further preferred embodiment of the present invention, guide rails 32 and moving racks 33 are fixedly installed on both sides of the storage seat 31, and the guide rails 32 and moving racks 33 slide through the back plate 1. Multiple moving wheels 34 are rotatably installed at the bottom of the storage seat 31 for supporting movement.

[0029] In this embodiment, the guide rails 32 and the moving racks 33 on both sides of the storage seat 31 slide through the back plate 1, which can provide precise guidance for the extension and retraction of the storage seat 31 and ensure that the storage seat 31 does not deviate when it moves; the multiple moving wheels 34 at the bottom of the storage seat 31 play a supporting role and reduce the friction when the storage seat 31 moves, making the extension and retraction of the storage seat 31 smoother.

[0030] In a further preferred embodiment of the present invention, a displacement drive shaft 35 is rotatably mounted on the back plate 1, and a displacement gear 36 is fixedly mounted on the bottom end of the displacement drive shaft 35. The displacement gear 36 meshes with a moving rack 33 to drive the placement seat 31 to extend and retract. A bevel gear 37 is fixedly mounted on the top end of the displacement drive shaft 35 and on the synchronous long shaft 23. The two bevel gears 37 mesh with each other to drive the displacement drive shaft 35 to rotate.

[0031] In this embodiment, the displacement drive shaft 35 on the back plate 1 meshes with the synchronous long shaft 23 through the bevel gear 37, so that the synchronous long shaft 23 drives the displacement drive shaft 35 to rotate synchronously. The displacement gear 36 at the bottom of the displacement drive shaft 35 meshes with the moving rack 33, driving the storage seat 31 to extend and retract, so that the extension and retraction of the storage seat 31 and the lifting and lowering of the mold clamping mechanism are synchronized. No additional power drive is required, which simplifies the structure while improving the continuity of operation and the synchronization accuracy.

[0032] In a further preferred embodiment of the present invention, a connecting strip is fixedly installed on the bottom side of each of the two side brackets 2, and the connecting strip is provided with a plurality of bolt holes.

[0033] In this embodiment, the side brackets 2 of the welding fixture provide fixed support for the back plate 1. Connecting strips are fixedly installed on the bottom sides of both side brackets 2. The connecting strips are provided with multiple bolt holes, which are used to connect the connecting strips to the mounting surface with bolts, thereby achieving the overall fixed installation of the fixture, ensuring the stability of the fixture during the mold welding process, and preventing the fixture from shifting.

[0034] In a further preferred embodiment of the present invention, the mounting base 3 is provided with a track groove, the track groove is adapted to the telescopic track 4, and the cylinder base 6 has an avoidance slot for the extension and retraction of the L-shaped bracket 5.

[0035] In this embodiment, the assembly base 3 of the welding fixture is provided with a track groove, which is adapted to the telescopic track 4. Its core function is to provide guidance and limit for the sliding of the telescopic track 4, ensuring that the telescopic track 4 does not deviate or shake when sliding on the assembly base 3, and ensuring the stability and accuracy of the displacement of the L-shaped bracket 5 driven by the telescopic track 4. The cylinder seat 6 is fixedly installed on the top of the assembly base 3. The cylinder seat 6 is provided with a clearance slot, which is adapted to the L-shaped bracket 5 and is used to provide clearance space for the telescopic movement of the L-shaped bracket 5, so as to avoid mechanical interference between the L-shaped bracket 5 and the cylinder seat 6 during the telescopic process.

[0036] In a further preferred embodiment of the present invention, both ends of the bidirectional lifting screw 10 are provided with screw grooves, and the lifting seat 11 is provided with a through hole for the spline cylinder 12 to pass through.

[0037] In this embodiment, both ends of the bidirectional lifting screw 10 are provided with screw grooves. The screw grooves are used to accommodate the insertion of tools, providing a force point for rotating the bidirectional lifting screw 10. This allows the operator to drive the bidirectional lifting screw 10 to rotate using tools, thereby adjusting the height of the two lifting seats 11 and adjusting the height of the L-shaped bracket 15 to fit the mold. The lifting seat 11 is provided with a through hole that fits the spline cylinder 12, allowing the spline cylinder 12 to pass through. This provides installation support for the spline cylinder 12 and allows it to slide within the through hole. This ensures that the spline cylinder 12 can rise and fall synchronously with the lifting seat 11 while allowing for flexible spacing adjustment. This ensures that the spline cylinder 12 and the spline rod 13 work together properly, thereby achieving precise engagement and fixation of the L-shaped bracket 15 on the mold.

[0038] In a further preferred embodiment of the present invention, the bottom of the storage seat 31 is provided with a roller groove, and the movable wheel 34 is installed in the roller groove.

[0039] In this embodiment, a roller groove is provided at the bottom of the storage base 31. The roller groove is adapted to the movable wheel 34 and is used to install the movable wheel 34. It provides installation positioning and limiting function for the movable wheel 34, ensuring that the movable wheel 34 is firmly installed at the bottom of the storage base 31 and does not fall off or shift. The movable wheel 34 is installed in the roller groove and can roll flexibly in the roller groove. This not only enables the storage base 31 to move smoothly and facilitates the transfer of the mold, but also limits the movable wheel 34 through the roller groove to prevent the movable wheel 34 from shifting when rolling, ensuring the smoothness of the movement of the storage base 31, and thus ensuring the stability of the mold transfer.

[0040] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, each of the two side supports 2 is provided with a stabilizing support mechanism. The stabilizing support mechanism includes a support plate 38 fixedly installed on the side support 2. The support plate 38 is located above the back plate 1. A U-shaped storage rack 39 is fixedly installed on the support plate 38. A stabilizing support plate 40 located inside the U-shaped storage rack 39 is slidably installed on the support plate 38 for supporting the mold clamping mechanism after it is lifted. A guide strip plate 41 fixedly connected to the U-shaped storage rack 39 is slidably installed inside the stabilizing support plate 40 for guiding the sliding of the stabilizing support plate 40. A transverse sliding screw 42 rotatably connected to the U-shaped storage rack 39 is threaded onto the stabilizing support plate 40 for driving the extension and retraction of the stabilizing support plate 40. A spur gear 43 is fixedly installed at one end of the transverse sliding screw 42 outside the U-shaped storage rack 39. The top of the support plate 38... An assembly plate 44 is fixedly installed, and a guide plate 45 is fixedly installed on the assembly plate 44. A transverse screw 46 is rotatably installed on the assembly plate 44. The same moving block 47 is sleeved on the guide plate 45 and the transverse screw 46. The moving block 47 is threadedly connected to the transverse screw 46 so that the transverse screw 46 drives the moving block 47 to slide along the guide plate 45. A drive rack 48 is fixedly installed on the moving block 47. The drive rack 48 has a tooth set 49. The tooth set 49 meshes with a spur gear 43 with a delay so that the lifting and lowering of the mold clamping mechanism cooperates with the extension and retraction of the stabilizing support plate 40. Synchronous pulleys 50 are fixedly installed on both the transverse screw 46 and the synchronous long shaft 23. The same synchronous belt 51 is sleeved on the two synchronous pulleys 50 so that the synchronous long shaft 23 synchronously drives the extension and retraction of the stabilizing support plate 40.

[0041] In this embodiment, when the synchronous long shaft 23 rotates to drive the mold clamping mechanism to rise, the synchronous wheel 50 on the synchronous long shaft 23 drives the transverse screw 46 to rotate synchronously via the synchronous belt 51. The transverse screw 46 drives the moving block 47 to slide along the guide plate 45 on the assembly plate 44. The moving block 47 drives the driving rack 48 to move synchronously. The tooth set 49 on the driving rack 48 meshes with the spur gear 43 in a delayed manner, driving the spur gear 43 to rotate. The spur gear 43 drives the transverse screw 42 to rotate. 2. Drive the stabilizing support plate 40 to slide along the guide strip plate 41, so that the stabilizing support plate 40 extends out from the U-shaped storage rack 39 until the stabilizing support plate 40 is supported under the mold clamping mechanism, thereby providing auxiliary support for the mold clamping mechanism and ensuring the stability of the mold clamping mechanism during the mold welding process; after the welding is completed, the synchronous long shaft 23 rotates in the opposite direction, driving the transverse screw 46 to rotate in the opposite direction, and the moving block 47 drives the drive rack 48 to move in the opposite direction. After the tooth set 49 disengages from the spur gear 43, the stabilizing support plate 40 is stored.

[0042] By setting stable support mechanisms on the two side supports 2, auxiliary support can be provided to the mold clamping mechanism after it is lifted, effectively enhancing the stability of the mold clamping mechanism during the welding process, preventing the mold clamping mechanism from shifting or shaking due to bearing the weight of the mold, and ensuring the welding accuracy of the mold; the U-shaped storage rack 39 can store the stable support plate 40, preventing the stable support plate 40 from affecting the movement of other parts of the fixture when it is idle, and optimizing the fixture structure layout; the guide plate 41 provides precise guidance for the sliding of the stable support plate 40, ensuring that the stable support plate 40 extends and retracts smoothly, avoiding shifting and jamming, and ensuring that the stable support plate 40 can accurately support the mold. Below the clamping mechanism; the transverse screw 42 drives the stabilizing support plate 40 to extend and retract, and in conjunction with the delayed meshing of the spur gear 43 and the drive rack 48, it achieves precise coordination between the lifting and lowering of the mold clamping mechanism and the extension and retraction of the stabilizing support plate 40, without the need for additional power drive, simplifying the operation process; the guide plate 45 provides guidance for the moving block 47, ensuring that the moving block 47 drives the drive rack 48 to slide smoothly, and ensuring smooth meshing between the tooth set 49 and the spur gear 43; the cooperation between the synchronous pulley 50 and the synchronous belt 51 enables the synchronous long shaft 23 to synchronously drive the transverse screw 46 to rotate, so that the extension and retraction of the stabilizing support plate 40 and the lifting and lowering of the mold clamping mechanism are coordinated and linked.

[0043] In another embodiment of the present invention, both of the U-shaped brackets 9 are fixedly mounted with an adapting disc 52, which is used to stabilize the support plate 40 after it extends and rests on top. Its circular surface can cooperate well with the telescopic movement of the stabilizing support plate 40, which is different from the delay problem of the traditional polygonal plane. Moreover, the adapting disc 52 can adapt to the reversal and support needs when the mold clamping mechanism rotates.

[0044] In this embodiment, an adapting disc 52 is fixedly installed on the outside of each of the two U-shaped brackets 9. The core function of the adapting disc 52 is to provide a supporting surface for the extended stabilizing support plate 40. The adapting disc 52 adopts a circular surface structure, which can form a good match with the extension and retraction movement of the stabilizing support plate 40, effectively solving the motion delay problem of traditional polygonal planes, and ensuring that the stabilizing support plate 40 can smoothly fit when it extends and retracts. At the same time, the adapting disc 52 is fixedly connected to the U-shaped bracket 9 and can rotate synchronously with the U-shaped bracket 9. When the mold clamping mechanism rotates and adjusts its orientation under the drive of the steering motor 19, the adapting disc 52 can synchronously change direction, always maintaining a close supporting state with the stabilizing support plate 40, adapting to the rotational support requirements of the mold clamping mechanism, and working with the stabilizing support mechanism to achieve continuous and stable support for the mold clamping mechanism.

[0045] In another embodiment of the present invention, a telescopic support bar 53 is fixedly installed at the bottom of the telescopic track 4 for sliding support of the telescopic track 4.

[0046] In this embodiment, a telescopic support bar 53 is fixedly installed at the bottom of the telescopic track 4. The core function of the telescopic support bar 53 is to provide sliding support for the telescopic track 4. The telescopic support bar 53 is fixedly connected to the telescopic track 4 and can slide synchronously with the telescopic track 4. It can share the weight of the mold and related components carried by the telescopic track 4 and prevent the telescopic track 4 from deforming or shifting due to uneven force during sliding.

[0047] In another embodiment of the present invention, an adaptive ring 54 is slidably sleeved on the optical shaft 29. The diameter of the optical shaft 29 is smaller than the diameter of the lifting stud 21. The bottom of the adaptive ring 54 abuts against the top of the lifting stud 21 for limiting the movement. An adaptive spring 55 is sleeved on the optical shaft 29. The bottom end of the adaptive spring 55 abuts against the top of the adaptive ring 54, and the top end abuts against the side bracket 2. A limiting block 56 is fixedly installed on the side of the adaptive ring 54. The limiting block 56 is slidably connected to the side bracket 2. A positioning block 57 is fixedly installed on the side bracket 2 for limiting the contact between the adaptive ring 54 and the limiting block 56. The above structure buffers and limits the movement when the mounting base 3 rises.

[0048] In this embodiment, when the synchronous long shaft 23 drives the guide shaft 29 to rotate, the guide shaft 29 drives the lifting stud 21 to rotate, thereby driving the assembly seat 3 to rise along the side bracket 2. During the rising process, the assembly seat 3 gradually approaches the adaptive ring 54. As the assembly seat 3 continues to rise, its top end abuts against the adaptive ring 54 and pushes the adaptive ring 54 to slide upward along the guide shaft 29. The adaptive spring 55 sleeved on the guide shaft 29 is compressed. The limiting block 56 on the side of the adaptive ring 54 slides synchronously along the side bracket 2 with the adaptive ring 54. When the adaptive ring 54 rises to the designated position, the limiting block 56 abuts against the positioning block 57 fixedly installed on the side bracket 2, realizing the buffering and limiting of the rising process of the assembly seat 3, avoiding the assembly seat 3 from rising too fast or excessively, and ensuring the stability of the rising process of the assembly seat 3 and the mold clamping mechanism.

[0049] In another embodiment of the present invention, vertical plates 58 are fixedly installed on both of the two support plates 38, and the vertical plates 58 are fixedly connected to the back plate 1.

[0050] In this embodiment, vertical plates 58 are fixedly installed on both support plates 38. The core function of the vertical plates 58 is to connect the support plates 38 and the back plate 1, thereby enhancing the installation stability of the support plates 38.

[0051] In summary, compared with related technologies, the entire fixture not only solves the problems of laborious loading and unloading, and easy damage to personnel and molds caused by existing fixtures, but also flexibly adapts to the welding needs of different molds, improving the convenience and accuracy of mold welding.

[0052] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A welding fixture for manufacturing molds for plastic parts of electric bicycles, characterized in that, include: The back plate and two side brackets are respectively fixedly installed on both sides of the back plate. Each of the two side brackets is equipped with a mold clamping mechanism, and the two mold clamping mechanisms work together to fix the mold. The mold clamping mechanism includes an assembly base that is slidably mounted on a side support. A telescopic rail is slidably mounted on the assembly base, and an L-shaped bracket is fixedly mounted on the telescopic rail. A cylinder seat is fixedly mounted on the top of the assembly base, and a telescopic cylinder is fixedly mounted on the cylinder seat. The output rod of the telescopic cylinder is fixedly connected to the L-shaped bracket and is used to drive the telescopic rail and the L-shaped bracket to move. A rotating shaft is rotatably mounted on the L-shaped bracket, and a U-shaped bracket is fixedly mounted on the rotating shaft. A bidirectional lifting screw is rotatably mounted on the U-shaped bracket, and two lifting seats are threaded onto the bidirectional lifting screw. Both lifting seats are slidably connected to the U-shaped bracket. Splined cylinders are slidably installed on both lifting seats. Splined rods are slidably installed inside both splined cylinders. Fixed blocks are fixedly installed at opposite ends of the splined cylinders and splined rods. The same L-shaped bracket is fixedly installed on the two corresponding fixed blocks. The four L-shaped brackets cooperate to fasten and fix the mold. Fixed blocks are fixedly installed on the four L-shaped brackets. The two fixed blocks at the same height are connected by the same bidirectional spacing adjustment screw so that the spacing between them can be adjusted to adapt to mold welding. One of the mold clamping mechanisms is equipped with a motor frame and a steering motor. The motor frame is fixedly mounted on a corresponding L-shaped bracket, and the steering motor is fixedly mounted on the motor frame. Differential wheels are fixedly mounted on the output shaft of the steering motor and the corresponding rotating shaft. The two differential wheels mesh with each other to drive the mold to adjust its direction.

2. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 1, characterized in that, Each of the two side supports is rotatably mounted with a lifting stud. The two lifting studs are threaded through the two mounting seats respectively, and are used to drive the two to lift synchronously, thereby adjusting the mold processing height. The two mounting seats are slidably connected to the two side supports respectively.

3. The welding fixture for manufacturing plastic parts molds for electric bicycles as described in claim 2, characterized in that, Both side supports are fixedly mounted with bearing seats, and the same synchronous long shaft is rotatably mounted on both bearing seats. A power motor is mounted on one of the side supports. A synchronous pulley is fixedly mounted on both the output shaft of the power motor and the synchronous long shaft. The same synchronous belt is fitted onto both synchronous pulleys to drive the synchronous long shaft to rotate. Transmission shafts are rotatably mounted on both side supports. A bevel gear is fixedly mounted on the same end of both transmission shafts and both ends of the synchronous long shaft. The two corresponding bevel gears mesh with each other to drive the two transmission shafts to rotate synchronously. A guide shaft is fixedly mounted on the top of each of the two lifting studs. The two guide shafts are rotatably connected to the two side supports respectively. A bevel gear is fixedly mounted on the top of each guide shaft and on both transmission shafts. The two corresponding bevel gears mesh with each other to drive the guide shafts and lifting studs to rotate, thereby causing the two mounting seats to rise and fall synchronously.

4. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 3, characterized in that, A storage seat is slidably installed at the bottom of the back plate. The storage seat is located between the two mold clamping mechanisms and is used to temporarily place the mold. The extension and retraction of the storage seat are synchronized with the raising and lowering of the mold clamping mechanism by the lifting screw. That is, when the storage seat retracts, the mold clamping mechanism rises.

5. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 4, characterized in that, Guide rails and moving racks are fixedly installed on both sides of the storage seat. Both the guide rails and moving racks slide through the back plate. Multiple moving wheels are rotatably installed on the bottom of the storage seat for supporting movement.

6. The welding fixture for manufacturing plastic parts molds for electric bicycles as described in claim 5, characterized in that, A displacement drive shaft is rotatably mounted on the back plate. A displacement gear is fixedly mounted at the bottom end of the displacement drive shaft. The displacement gear meshes with a moving rack to drive the displacement drive shaft to extend and retract the storage seat. A bevel gear is fixedly mounted on the top end of the displacement drive shaft and on the synchronous long shaft. The two bevel gears mesh with each other to drive the displacement drive shaft to rotate.

7. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 1, characterized in that, Both of the side brackets have connecting strips fixedly installed on their bottom sides, and the connecting strips have multiple bolt holes.

8. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 1, characterized in that, The mounting base is provided with a track groove, which is adapted to the telescopic track, and the cylinder base has a clearance slot for the extension and retraction of the L-shaped bracket.

9. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 1, characterized in that, Both ends of the bidirectional lifting screw are provided with screw grooves, and the lifting base is provided with a through hole for the spline cylinder to pass through.

10. The welding fixture for manufacturing molds for plastic parts of electric vehicles as described in claim 5, characterized in that, The bottom of the storage seat has a roller groove, and the movable wheel is installed in the roller groove.

Images