Automobile seat framework welding tool

Abstract

The invention discloses an automobile seat framework welding tool, and belongs to the field of welding tools, the automobile seat framework welding tool comprises a supporting frame A, the bottom of the supporting frame A is fixedly connected with a supporting seat, the outer wall of the supporting frame A is fixedly connected with a mounting plate, the outer wall of the supporting frame A is fixedly connected with mounting blocks, and a mounting shaft is rotatably connected between the two mounting blocks; the upper end of the mounting shaft is fixedly connected with a supporting frame B. Positioning assemblies are arranged in the supporting frame A and the supporting frame B. The main function of arranging the positioning assembly is to accurately adjust the position of the automobile seat framework, it is ensured that the automobile seat framework is kept at the correct fixing position in the welding process, the positioning assembly can position and fix a base and a backrest of the seat framework at the same time, and the working efficiency is improved. Through cooperation of the hydraulic system, the whole positioning device stops only after the seat base and the backrest are fixed, and therefore the positioning device can adapt to positioning operation of the base and the backrest with different width ratios.

Description

Technical Field

[0001] The present application relates to the field of welding tooling, and in particular, to a welding tooling for a car seat frame. Background Art

[0002] The car seat frame is the core structure of the car seat, usually made of metal materials (such as steel, aluminum alloy), which plays the role of supporting the seat and ensuring that the seat has sufficient safety, comfort and durability during use. The seat frame not only bears all the weight of the seat, but also undertakes multiple functions such as seat adjustment system and collision protection.

[0003] For example, the Chinese patent publication number is CN116475674A, and the technical solution disclosed in the patent document is as follows: A positioning mechanism for a welding tool for a car seat frame, which belongs to the field of automobile processing technology. A positioning mechanism for a welding tool for a car seat frame, including a support frame, two symmetrically arranged support seats are fixed to the bottom end of the support frame, a first limiting assembly is arranged inside the support seat, and a rotating frame is fixed to one end of the support frame. The base and backrest of the car seat frame are clamped and positioned by the first limiting assembly and the second limiting assembly respectively, which can ensure the stability and firmness of the car seat frame during welding, facilitate operators to weld the car seat frame, improve welding accuracy and welding efficiency, and the backrest of the car seat frame can be adjusted by adjusting the assembly, which can enable the staff to adjust according to the welding requirements, and has good adjustability and applicability.

[0004] The existing technology has the following problems: Although the splint can effectively fix the seat frame, this positioning method relies on multiple manual adjustments and mechanical transmission links, which may cause certain mechanical errors and uneven clamping in actual operation, thus affecting the positioning accuracy of the seat; the adjustment method relies on manual knobs and screws. Although the angle and position of the seat can be adjusted through these components, frequent manual adjustments may be required for different models or shapes of car seat frames. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a welding tool for an automobile seat frame, which solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present application provides a welding tool for a car seat frame, including a support frame A, the bottom of the support frame A is fixedly connected to a support seat, the outer wall of the support frame A is fixedly connected to a mounting plate, the outer wall of the support frame A is fixedly connected to a mounting block, a mounting shaft is rotatably connected between the two mounting blocks, the upper end of the mounting shaft is fixedly connected to a support frame B, and positioning components are arranged inside the support frames A and B. The main function of the positioning components is to accurately adjust the position of the car seat frame and ensure that it remains in the correct fixed position during the welding process. The positioning components can simultaneously position and fix the base and backrest of the seat frame, thereby improving work efficiency. The cooperation of the hydraulic system ensures that the entire positioning device will stop only after the seat base and backrest are both fixed, so it can adapt to positioning operations with different width ratios between the base and the backrest, thereby ensuring that the seat will be firmly fixed in the predetermined position without accidental sliding or loosening; The positioning assembly includes a motor, which is fixedly connected to the outer wall of a support frame A, and the output end of the motor is fixedly connected to a transmission shaft A. A worm A is fixedly provided on the outer wall of the transmission shaft A. A fixing block A is fixedly connected to the bottom of the support frame A. A bidirectional threaded rod A is rotatably connected to the middle part of the fixing block A. A worm gear A is provided on the outer wall of the bidirectional threaded rod A. A connecting block A is threadedly connected to the outer wall of the bidirectional threaded rod A. An L-shaped plate A is fixedly connected to the upper end of the connecting block A. Slide grooves A are provided on both sides of the support frame A. The L-shaped plate A is slidably connected to the inside of the slide groove A. A universal joint is fixedly connected to the other end of the transmission shaft A. A transmission shaft B is fixedly connected to the outer wall of the transmission shaft B. There is a worm B, the support frame B is fixedly connected with a fixed block B, the fixed blocks B are rotatably connected with a bidirectional threaded rod B, the outer wall of the bidirectional threaded rod B is fixedly sleeved with a worm gear B, the outer wall of the bidirectional threaded rod B is threadedly connected with a connecting block B, the outer wall of the connecting block B is fixedly connected with an L-shaped plate B, both sides of the support frame B are provided with slide grooves B, the L-shaped plate B is slidably connected inside the slide grooves B, hydraulic warehouses are arranged on the sides of the support frame A and the support frame B, the upper and lower ends of the hydraulic warehouse are respectively fixedly connected to the L-shaped plate B and the L-shaped plate A, the two ends of the hydraulic warehouse A are slidably connected with hydraulic rods A and hydraulic rods B, the other end of the hydraulic rod A is fixedly connected to the limiting plate A, and the other end of the hydraulic rod B is fixedly connected to the limiting plate B.

[0007] Preferably, the worm wheel A is located at the upper end of the worm A and meshes with it, and the worm wheel B is located on the side of the worm B and meshes with it.

[0008] Preferably, the middle portion of the hydraulic compartment is provided with a hose.

[0009] Preferably, the middle connecting shaft of the universal joint is of telescopic design.

[0010] Preferably, an adjustment component is provided on the side of the support frame A, and the main function of the adjustment component is to adjust the angle between the support frame A and the support frame B so that the tooling can adapt to seat frames of different shapes. This adjustment is very important for seats of different types and designs, and can ensure that the welding tooling provides suitable support for the seat frame. The adjustment component includes an electric telescopic rod, which is fixedly connected to the inner side of the support frame A, and the output end of the electric telescopic rod is fixedly connected to a movable plate, one end of the mounting shaft is fixedly connected to a connecting rod A, and the outer wall of the connecting rod A is slidably connected to a movable cylinder, the outer wall of the movable plate is fixedly connected to a fixed block C, and the outer wall of the fixed block C is rotatably connected to a rotating shaft A, the outer wall of the rotating shaft A is fixedly connected to a worm C, and the other end of the rotating shaft A is fixedly connected to a bevel gear A, the end of the bidirectional threaded rod A close to the bevel gear A is fixedly connected to a bevel gear B, and the end of the movable cylinder away from the connecting rod A is fixedly connected to a worm gear C, and the worm gear C is meshed with the worm gear C.

[0011] Preferably, a clamping block is fixedly connected to the outer wall of the connecting rod A, a clamping groove is formed on the inner wall of the movable cylinder, and the clamping block is slidably connected inside the clamping groove.

[0012] Preferably, a support assembly is provided at the upper end of the mounting plate, and the main function of the support assembly is to provide additional support force, especially to enhance the support capacity of the backrest part of the seat frame, strengthen the support of the backrest part of the seat, ensure the stability during the welding process, and prevent the movement or deformation of the backrest part from affecting the welding quality. The sliding seat and the support plate can maintain the stability of the backrest part according to the rotation and adjustment of the support frame B, and the angle change of the support plate and the support frame B is synchronized to ensure that the support of the backrest part is consistent throughout the welding process. This synchronization avoids stability problems caused by angle changes. The support assembly includes a connecting rod, which is rotatably connected to the side of the support frame B through a pin shaft, and the other end of the connecting rod is rotatably connected to the connecting rod B, and the other end of the connecting rod B is rotatably connected to a sliding seat, and the upper end of the sliding seat is fixedly connected to a fixed block D, and the outer wall of the fixed block D is rotatably connected to the rotating shaft B. The outer wall of the rotating shaft B is fixedly sleeved with a connecting plate and a transmission gear, and the end of the connecting plate away from the rotating shaft B is fixedly connected to a support plate, and the upper end of the mounting plate is fixedly connected to a toothed plate, and movable grooves are provided at the top and lower end of the sliding seat, and the toothed plate and the transmission gear are movably connected inside the movable groove.

[0013] Preferably, the upper end of the mounting plate is fixedly connected to a slide rail, and the sliding seat is slidably connected to the upper end of the slide rail.

[0014] The benefits of this application are: (1) The main function of the positioning assembly provided in this application is to accurately adjust the position of the automobile seat frame and ensure that it remains in the correct fixed position during the welding process. The positioning assembly can simultaneously position and fix the seat frame base and backrest, thereby improving work efficiency. The coordination of the hydraulic system ensures that the entire positioning device will not stop until both the seat base and backrest are fixed. Therefore, it can adapt to positioning operations with different width ratios between the base and backrest, thereby ensuring that the seat will be firmly fixed in the predetermined position without accidental sliding or loosening.

[0015] (2) The main function of the adjustment component provided in the present application is to adjust the angle between the support frame A and the support frame B so that the tooling can adapt to seat frames of different shapes. This adjustment is very important for seats of different types and designs, and can ensure that the welding tooling provides appropriate support for the seat frame.

[0016] (3) The main function of the support assembly provided in this application is to provide additional support force, especially to enhance the support capacity of the backrest part of the seat frame, strengthen the support of the backrest part of the seat, ensure the stability during the welding process, and prevent the movement or deformation of the backrest part from affecting the welding quality. The sliding seat and the support plate can maintain the stability of the backrest part according to the rotation and adjustment of the support frame B. The angle change of the support plate and the support frame B is synchronized to ensure that the support of the backrest part is consistent throughout the welding process. This synchronization avoids the stability problem caused by the angle change. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the present invention; Figure 3 The present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the overall back structure of the present invention; Figure 5 The present invention Figure 4 The enlarged structural diagram at C in the middle; Figure 6 The present invention Figure 4 The enlarged structural diagram at D in the middle; Figure 7 The present invention Figure 1 Enlarged structural diagram at B in the middle.

[0018] In the above figure, 1. Support frame A; 2. Support seat; 3. Mounting plate; 4. Mounting block; 5. Mounting shaft; 6. Support frame B; 7. Positioning assembly; 71. Motor; 72. Transmission shaft A; 73. Worm A; 74. Fixing block A; 75. Bidirectional threaded rod A; 76. Worm gear A; 77. Connecting block A; 78. L-shaped plate A; 79. Universal joint; 710. Transmission shaft B; 711. Worm B; 712. Fixing block B; 713. Bidirectional threaded rod B; 714. Worm gear B; 715. Connecting block B; 716. L-shaped plate B; 717. Hydraulic chamber; 718. Limiting plate A; 719. Limit plate B; 720, hydraulic rod A; 721, hydraulic rod B; 8, adjustment assembly; 81, electric telescopic rod; 82, moving plate; 83, connecting rod A; 84, movable cylinder; 85, fixed block C; 86, rotating shaft A; 87, worm C; 88, bevel gear A; 89, bevel gear B; 810, worm gear C; 811, clamping block; 812, clamping slot; 9, support assembly; 91, connecting rod; 92, connecting rod B; 93, sliding seat; 94, fixed block D; 95, rotating shaft B; 96, connecting plate; 97, support plate; 98, transmission gear; 99, tooth plate; 911, slide rail. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Example 1 See also Figure 1-Figure 4 The present embodiment provides a welding tool for a car seat frame, including a support frame A1, which is the basic frame of the whole tool, and its main function is to carry other components and provide a stable support for the seat frame. The bottom of the support frame A1 is fixedly connected with a support seat 2, and the support seat 2 is fixed to the bottom of the support frame A1 to increase the stability and carrying capacity of the support frame A1. The outer wall of the support frame A1 is fixedly connected with a mounting plate 3, and the outer wall of the support frame A1 is fixedly connected with a mounting block 4. A mounting shaft 5 is rotatably connected between the two mounting blocks 4, and the upper end of the mounting shaft 5 is fixedly connected with a support frame B6. The support frame B6 cooperates with the support frame A1, and through different connecting components and adjustment devices, jointly undertakes the support and positioning tasks of the seat frame. The support frames A1 and B6 are provided with positioning components 7 inside. The core function of the positioning component 7 is to accurately adjust the position of the seat frame to ensure that the frame is in the correct fixed position during welding; The positioning assembly 7 includes a motor 71, which is fixedly connected to the outer wall of the support frame A1. The output end of the motor 71 is fixedly connected to a transmission shaft A72. A worm A73 is provided on the outer wall of the transmission shaft A72. A fixed block A74 is fixedly connected to the bottom of the support frame A1. A bidirectional threaded rod A75 is rotatably connected to the middle part of the fixed block A74. A worm gear A76 is provided on the outer wall of the bidirectional threaded rod A75. A connecting block A77 is threadedly connected to the outer wall of the bidirectional threaded rod A75. An L-shaped plate A78 is fixedly connected to the upper end of the connecting block A77. Slide grooves A are provided on both sides of the support frame A1. The L-shaped plate A78 is slidably connected to the inside of the slide groove A. The other end of the transmission shaft A72 is fixedly connected to a universal joint 79. The universal joint 79 plays a connecting role, transmits motion and allows the transmission shaft B710 to rotate flexibly. The other end of the universal joint 79 is fixedly connected to the transmission shaft B710. The outer wall of the transmission shaft B710 A worm gear B711 is provided on the wall fixing sleeve, a fixing block B712 is fixedly connected to the support frame B6, a bidirectional threaded rod B713 is rotatably connected between the fixing blocks B712, a worm gear B714 is provided on the outer wall fixing sleeve of the bidirectional threaded rod B713, a connecting block B715 is threadedly connected to the outer wall of the bidirectional threaded rod B713, an L-shaped plate B716 is fixedly connected to the outer wall of the connecting block B715, sliding grooves B are provided on both sides of the support frame B6, and the L-shaped plate B716 is slidably connected to the inside of the sliding groove B, hydraulic bins 717 are provided on the sides of the support frame A1 and the support frame B6, and the upper and lower ends of the hydraulic bin 717 are fixedly connected to the L-shaped plate B716 and the L-shaped plate A78 respectively, and hydraulic rods A720 and hydraulic rods B721 are slidably connected inside the two ends of the hydraulic bin A717, the other end of the hydraulic rod A720 is fixedly connected to the limiting plate A718, and the other end of the hydraulic rod B721 is fixedly connected to the limiting plate B719. The worm wheel A76 is located at the upper end of the worm A73 and meshes with it, and the worm wheel B714 is located at the side of the worm B711 and meshes with it. The middle part of the hydraulic chamber 717 is set as a hose. The middle connecting shaft of the universal joint 79 is a telescopic design.

[0026] When in use, first place the car seat frame on the upper end of the support frame A1, then start the motor 71 to drive the transmission shaft A72 to rotate, and then the worm A73 fixedly mounted on its outer wall will rotate accordingly, and then the worm wheel B714 meshing with it will rotate at any time, then the two-way threaded rod A75 will rotate accordingly, and then the connecting block A77 threadedly connected to its outer wall will move toward the center of the support frame A1, thereby driving the L-shaped plate A78 to move, and at the same time, under the action of the universal joint 79, the transmission shaft B710 will be driven to rotate at the same time, and then the worm B711 fixedly mounted on the outer wall of the transmission shaft B710 will rotate accordingly, and then the worm wheel B714 meshing with it will rotate accordingly, then the two-way threaded rod B713 will rotate accordingly, and then the connecting block A77 threadedly connected to the ... The connecting block B715 will move toward the middle of the support frame B6, thereby driving the L-shaped plate B716 to move toward the middle, and then driving the hydraulic bin 717 to move toward the middle. Since the base of the car seat frame is wider than the backrest, the limit plate A718 sliding at the lower end will first contact the side of the seat. At this time, the L-shaped plate A78 and the L-shaped plate B716 continue to move toward the middle, then the limit plate A718 will squeeze the hydraulic rod A720 to slide toward the inside of the hydraulic bin 717, then the limit plate B719 located at the other end of the hydraulic bin 717 will move outward, thereby driving the limit plate B719 to move outward. Once the limit plate B719 contacts the seat back, the adjustment space between the base and the backrest of the seat will be completely restricted, ensuring that the seat will no longer move when it is in a fixed position. This mechanism ensures the fixation and stability of the seat, and avoids accidental sliding or loosening during use. When the limit plate A718 and the limit plate B719 are fully in contact with the seat base and backrest respectively, the seat positioning process is completed. At this time, the pressure of the hydraulic system is fully utilized, and the seat base and backrest are firmly fixed in the predetermined position. The entire adjustment process can be carried out seamlessly, thus ensuring the comfort, stability and safety of the seat during use.

[0027] Example 2 See also Figure 1-Figure 7The side of the support frame A1 is provided with an adjustment component 8, the main function of which is to adjust the angle between the support frame A1 and the support frame B6 so that they can adapt to different forms of seat frames, especially the base and backrest of the seat. The adjustment component 8 includes an electric telescopic rod 81. A power source for the adjustment system is provided so that the tooling can adjust its angle as needed. The electric telescopic rod 81 is fixedly connected to the inner side of the support frame A1, and the output end of the electric telescopic rod 81 is fixedly connected to a movable plate 82. One end of the mounting shaft 5 is fixedly connected to a connecting rod A83, and the outer wall of the connecting rod A83 is slidably connected to a movable cylinder 84. The outer wall of the movable plate 82 is fixedly connected to a fixed block C85, and the outer wall of the fixed block C85 is rotatably connected to a rotating shaft A86. The outer wall of the rotating shaft A86 is fixedly connected to a worm C87, and the other end of the rotating shaft A86 is fixedly connected to a bevel gear A88. One end of the bidirectional threaded rod A75 close to the bevel gear A88 is fixedly connected to a bevel gear B89, and one end of the movable cylinder 84 away from the connecting rod A83 is fixedly connected to a worm gear C810, which meshes with the worm gear C87. A clamping block 811 is fixedly connected to the outer wall of the connecting rod A83 , a clamping groove 812 is formed on the inner wall of the movable cylinder 84 , and the clamping block 811 is slidably connected inside the clamping groove 812 .

[0028] When in use, before fixing the car seat frame, first adjust the support frame B6 and the support frame A1 to a suitable angle through the adjustment component 8 as needed. The specific method of using the adjustment component 8 is: first, the electric telescopic rod 81 is electrically driven to move the movable plate 82 toward the support frame A1. This action pushes the movable cylinder 84 to slide along the outer wall of the connecting rod A83, thereby driving the entire adjustment process, and then the moving plate 82 will drive the movable cylinder 84 to slide on the outer wall of the connecting rod A83 toward the direction of the support frame A1, and then the rotating shaft A86 connected to the outer wall of the moving plate 82 through the fixed block C85 will move accordingly, until the bevel gear A88 at the other end of the rotating shaft A86 meshes with the bevel gear B89, at this time, the motor 71 in the positioning assembly 7 is started to drive the transmission shaft A72 to rotate, and then the worm A73 fixedly sleeved on its outer wall will rotate accordingly, and then the worm gear B714 meshed with it will rotate at any time, then the bidirectional threaded rod A75 will rotate accordingly, and then the bevel gear B89 at one end of the bidirectional threaded rod A75 will rotate accordingly, and then it will drive the bevel gear meshed with it. The gear A88 rotates, and then the rotating shaft A86 rotates, thereby driving the worm C87 on its outer wall to rotate, and then the worm wheel C810 meshing with it at its upper end will rotate accordingly, and then drive the movable cylinder 84 to rotate, and then with the cooperation of the slot 812 on the inner wall of the movable cylinder 84 and the block 811 on the outer wall of the connecting rod A83, the connecting rod A83 can be driven to rotate, thereby driving the installation shaft 5 to rotate, and then the support frame B6 can be rotated. After adjusting to the appropriate angle, the electric telescopic rod 81 is started again to drive the movable plate 82 away from the support frame A1, so that the bevel gear A88 can be disengaged from the bevel gear B89. At this time, the positioning component 7 is restored to its original state, and the positioning operation is performed again.

[0029] Example 3 See also Figure 1-Figure 6The upper end of the mounting plate 3 is provided with a support assembly 9, which is used to further strengthen the support capacity of the seat frame during the welding process, especially the support of the backrest part. The support assembly 9 includes a connecting rod 91, which is rotatably connected to the side of the support frame B6 through a pin shaft, and the other end of the connecting rod 91 is rotatably connected to a connecting rod B92, and the other end of the connecting rod B92 is rotatably connected to a sliding seat 93. The upper end of the sliding seat 93 is fixedly connected to a fixed block D94, and the outer wall of the fixed block D94 is rotatably connected to a rotating shaft B95. The outer wall of the rotating shaft B95 is fixedly sleeved with a connecting plate 96 and a transmission gear 98. The end of the connecting plate 96 away from the rotating shaft B95 is fixedly connected to a support plate 97. The upper end of the mounting plate 3 is fixedly connected to a tooth plate 99, and the top and lower end of the sliding seat 93 are provided with a movable groove, and the tooth plate 99 and the transmission gear 98 are movably connected inside the movable groove. The upper end of the mounting plate 3 is fixedly connected to a slide rail 911, and the sliding seat 93 is slidably connected to the upper end of the slide rail 911.

[0030] When in use, when the support frame B6 rotates outward, the angle of the support frame B6 changes through the linkage relationship between the connecting rod 91 and the connecting rod B92, so that the corresponding mechanical movement is provided when the support frame B6 rotates, thereby driving the sliding seat 93 to slide along the direction of the slide rail 911. The sliding movement of the sliding seat 93 on the slide rail 911 is an important step in the adjustment process of the support assembly 9. When the support frame B6 adjusts its angle, the connecting rod 91 and the connecting rod B92 will move the sliding seat 93 on the slide rail 911, avoiding physical interference between the support frame B6 and the support assembly 9. This linear movement of the sliding seat 93 ensures the free movement of the support assembly 9 and provides a basis for subsequent force transmission and support. The fixed block D94 is connected to the sliding seat 93. As the sliding seat 93 translates, the fixed block D94 will also slide and drive the rotating shaft B95 to rotate. The rotation of the rotating shaft B95 further drives the support plate 97 to rotate through the meshing of the transmission gear 98 and the tooth plate 99. The rotation angle of the support plate 97 is consistent with the rotation angle of the support frame B6. Therefore, when the support frame B6 adjusts the angle of the seat frame, the support plate 97 will also adjust its position synchronously to ensure that the backrest part is stably supported. This support method can effectively prevent the seat frame from shifting due to uneven stress or inappropriate angles during the welding process, ensuring stability during welding operations. The rotation of the support plate 97 not only plays a role in physical support, but also provides a stable fixing force through contact with the seat frame, helping to maintain the shape and angle of the seat and avoiding displacement of the frame due to vibration or pressure. In this way, the support assembly 9 enhances the supporting force of the seat frame, especially during the welding process, which can effectively prevent deformation or dislocation of the backrest part.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding tool for a car seat frame, comprising a support frame A (1), characterized in that: The bottom of the support frame A (1) is fixedly connected to a support seat (2), the outer wall of the support frame A (1) is fixedly connected to a mounting plate (3), the outer wall of the support frame A (1) is fixedly connected to a mounting block (4), a mounting shaft (5) is rotatably connected between the two mounting blocks (4), the upper end of the mounting shaft (5) is fixedly connected to a support frame B (6), and positioning components (7) are provided inside the support frame A (1) and the support frame B (6); The positioning assembly (7) comprises a motor (71), wherein the motor (71) is fixedly connected to the outer wall of the support frame A (1), the output end of the motor (71) is fixedly connected to a transmission shaft A (72), the outer wall fixed sleeve of the transmission shaft A (72) is provided with a worm A (73), the bottom of the support frame A (1) is fixedly connected to a fixing block A (74), the middle part of the fixing block A (74) is rotatably connected to a bidirectional threaded rod A (75), the outer wall fixed sleeve of the bidirectional threaded rod A (75) is provided with a worm wheel A (76), and the The outer wall of the bidirectional threaded rod A (75) is threadedly connected to a connecting block A (77), the upper end of the connecting block A (77) is fixedly connected to an L-shaped plate A (78), both sides of the support frame A (1) are provided with slide grooves A, the L-shaped plate A (78) is slidably connected inside the slide grooves A, the other end of the transmission shaft A (72) is fixedly connected to a universal joint (79), the other end of the universal joint (79) is fixedly connected to a transmission shaft B (710), the outer wall of the transmission shaft B (710) is fixedly sleeved with a worm gear B (711), the The support frame B (6) is fixedly connected with a fixed block B (712), and the fixed block B (712) is rotatably connected with a bidirectional threaded rod B (713), and the outer wall of the bidirectional threaded rod B (713) is fixedly sleeved with a worm gear B (714), and the outer wall of the bidirectional threaded rod B (713) is threadedly connected with a connecting block B (715), and the outer wall of the connecting block B (715) is fixedly connected with an L-shaped plate B (716), and two sides of the support frame B (6) are provided with sliding grooves B, and the L-shaped plate B (716) is slidably connected to the sliding grooves. Inside the groove B, a hydraulic bin (717) is provided on the side of the support frame A (1) and the support frame B (6), and the upper and lower ends of the hydraulic bin (717) are fixedly connected to the L-shaped plate B (716) and the L-shaped plate A (78) respectively. A hydraulic rod A (720) and a hydraulic rod B (721) are slidably connected inside the two ends of the hydraulic bin A (717), and the other end of the hydraulic rod A (720) is fixedly connected to the limiting plate A (718), and the other end of the hydraulic rod B (721) is fixedly connected to the limiting plate B (719).

2. The automobile seat frame welding tool according to claim 1, characterized in that: The worm wheel A (76) is located at the upper end of the worm A (73) and meshes with it, and the worm wheel B (714) is located on the side of the worm B (711) and meshes with it.

3. The automobile seat frame welding tool according to claim 1, characterized in that: The middle part of the hydraulic tank (717) is provided with a hose.

4. The automobile seat frame welding tool according to claim 1, characterized in that: The middle connecting shaft of the universal joint (79) is of telescopic design.

5. The automobile seat frame welding tool according to claim 1, characterized in that: An adjustment assembly (8) is provided on the side of the support frame A (1), and the adjustment assembly (8) comprises an electric telescopic rod (81), the electric telescopic rod (81) is fixedly connected to the inner side of the support frame A (1), the output end of the electric telescopic rod (81) is fixedly connected to a moving plate (82), one end of the mounting shaft (5) is fixedly connected to a connecting rod A (83), the outer wall of the connecting rod A (83) is slidably connected to a movable cylinder (84), and the outer wall of the moving plate (82) is fixedly connected to a fixing block C (85). The outer wall of the fixed block C (85) is rotatably connected to a rotating shaft A (86), the outer wall of the rotating shaft A (86) is fixedly connected to a worm C (87), the other end of the rotating shaft A (86) is fixedly connected to a bevel gear A (88), the end of the bidirectional threaded rod A (75) close to the bevel gear A (88) is fixedly connected to a bevel gear B (89), and the end of the movable cylinder (84) away from the connecting rod A (83) is fixedly connected to a worm gear C (810), and the worm gear C (810) is meshed with the worm gear C (87).

6. The automobile seat frame welding tool according to claim 5, characterized in that: A clamping block (811) is fixedly connected to the outer wall of the connecting rod A (83), a clamping groove (812) is formed on the inner wall of the movable cylinder (84), and the clamping block (811) is slidably connected inside the clamping groove (812).

7. The automobile seat frame welding tool according to claim 1, characterized in that: A support assembly (9) is provided at the upper end of the mounting plate (3). The support assembly (9) comprises a connecting rod (91). The connecting rod (91) is rotatably connected to a side surface of a support frame B (6) via a pin shaft. The other end of the connecting rod (91) is rotatably connected to a connecting rod B (92). The other end of the connecting rod B (92) is rotatably connected to a sliding seat (93). The upper end of the sliding seat (93) is fixedly connected to a fixing block D (94). The outer wall of the fixing block D (94) is rotatably connected to a rotating shaft B (95). A connecting plate (96) and a transmission gear (98) are fixedly sleeved on the outer wall of the rotating shaft B (95). One end of the connecting plate (96) away from the rotating shaft B (95) is fixedly connected to a support plate (97). The upper end of the mounting plate (3) is fixedly connected to a toothed plate (99). A movable groove is provided at the top and the lower end of the sliding seat (93). The toothed plate (99) and the transmission gear (98) are movably connected inside the movable groove.

8. The automobile seat frame welding tool according to claim 7, characterized in that: The upper end of the mounting plate (3) is fixedly connected to a slide rail (911), and the slide seat (93) is slidably connected to the upper end of the slide rail (911).

Images