A welding fixture for an automobile seat wire harness mounting bracket

Abstract

The utility model belongs to the technical field of clamp, especially involves automobile seat cushion pencil installation support's welding fixture, including work table, bottom plate, seat cushion support positioning subassembly, main driver support positioning subassembly, fixed base and clamping assembly, bottom plate installs on work table, main driver support positioning subassembly includes mounting seat, translator, movable block and positioning column, mounting seat is located on the bottom plate, translator is located on mounting seat one side, its output end connects movable block, and movable block one side is equipped with the positioning column, seat cushion support positioning subassembly includes locating seat, lifting piece, moving block and positioning pin, locating seat is located on the bottom plate, lifting piece is located on locating seat one side, its output end connects moving block, and moving block top is equipped with at least one positioning pin, clamping assembly includes connecting seat, jacking piece, rotary lever and clamping block, connecting seat is located on the bottom plate, jacking piece is fixed on connecting seat, its output end articulates rotary lever, and the other end of rotary lever is equipped with clamping block. Realize the generalization of clamp, effectively reduce the cost of special fixture.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, and in particular relates to a welding clamp for an automotive seat cushion wiring harness mounting bracket. Background Technology

[0002] In the automotive manufacturing sector, such as Figure 2 The seat harness mounting bracket is an irregularly shaped component, exhibiting a height difference of "higher on the right and lower on the left," and the front and rear ends on the left side are not on the same plane, demonstrating significant structural irregularities. The matching driver's side harness mounting bracket is L-shaped, requiring welding its horizontal bottom surface to the top left side of the seat harness mounting bracket during assembly. The welding quality directly affects the stability and safety of subsequent harness installation. Currently, due to the uneven nature of the seat harness mounting bracket, specialized welding fixtures are typically used for positioning and clamping to ensure smooth welding. However, existing fixtures are usually designed for a single product, with key positioning and clamping structures that are difficult to adjust or disassemble. This makes a single fixture suitable for a specific bracket model, but incompatible with different specifications of the same type of bracket components. When welding seat harness mounting brackets for different car models or batches, it is necessary to customize and replace the entire fixture set, and to stop production for adjustments, increasing fixture manufacturing costs and reducing production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a welding fixture for automotive seat wiring harness mounting brackets, solving the problem that existing fixtures are not compatible with multiple similar seat wiring harness mounting brackets, requiring custom-made fixtures, increasing costs, and reducing efficiency.

[0004] To achieve the above objectives, this utility model provides a welding fixture for an automotive seat cushion wiring harness mounting bracket, comprising a worktable, a base plate, a seat cushion bracket positioning assembly, a driver's side bracket positioning assembly, a fixing seat, and a clamping assembly. The worktable has a through slot, and the base plate is mounted on the worktable and covers the through slot. The base plate has multiple through mounting holes communicating with the through slot. The driver's side bracket positioning assembly, the fixing seat, and the seat cushion bracket positioning assembly are detachably mounted on the base plate from left to right. The fixing seat supports the left side of the seat cushion wiring harness mounting bracket. The driver's side bracket positioning assembly includes a mounting seat, a translation component, a movable block, and a positioning post. The mounting seat is detachably mounted on the base plate. The translation component is fixed to one side of the mounting seat, and its output end is connected to the movable block. The movable block has a positioning post on the side facing the seat cushion bracket positioning assembly. The seat support positioning assembly is used to position the driver's side wiring harness mounting bracket above the seat cushion wiring harness mounting bracket. The positioning assembly includes a positioning seat, a lifting component, a moving block, and a positioning pin. The positioning seat is detachably mounted on the base plate. The lifting component is fixed to one side of the positioning seat, and its output end is connected to the moving block. The top of the moving block has at least one positioning pin for positioning the seat cushion wiring harness mounting bracket. The top of the positioning seat supports the right side of the seat cushion wiring harness mounting bracket. The clamping assembly includes a connecting seat, a lifting component, a rotating rod, and a clamping block. The connecting seat is detachably mounted on the base plate and located on one side of the mounting seat. The lifting component is fixed to the connecting seat, and its output end is hinged to the rotating rod. The other end of the rotating rod has a clamping block. The lifting component drives the rotating rod to rotate downwards, causing the clamping block to press the driver's side wiring harness mounting bracket onto the seat cushion wiring harness mounting bracket.

[0005] Furthermore, the top of the positioning seat is provided with a limiting block and at least one support block at intervals. The support block is used to support the seat cushion wiring harness mounting bracket, and the limiting block is used to limit the upward stroke of the moving block, so that the top of the support block is higher than the top of the moving block and lower than the top of the positioning pin.

[0006] Furthermore, the mounting base is provided with a first fixing block and at least one second fixing block, with the top ends of the first fixing block and the second fixing block staggered from each other to the left and right; when the clamp is in the state of pressing the driver harness mounting bracket, the clamp is located directly above the first fixing block.

[0007] Furthermore, the connecting seat is provided with a stop block, the free end of which is located above the movable block, and its side is on the same plane as the side of the movable block with the positioning post, for abutting against the driver harness mounting bracket.

[0008] Furthermore, the movable block has positioning blocks on both sides of the positioning post, and the ends of the two positioning blocks extend beyond the side of the movable block in a direction parallel to the axis of the positioning post, for limiting the front and rear sides of the driver harness mounting bracket.

[0009] Furthermore, a guide plate is provided on the side of the translation member away from the movable block. The guide plate is provided with multiple push rods. One end of each push rod slides through the guide plate and the translation member and connects to the movable block. The other end is fixedly connected to the push plate. A horizontal plate is provided on the top side of the guide plate away from the translation member. The other end of the horizontal plate is provided with an open U-shaped groove. The U-shaped groove is hinged to the middle of a swing rod. The bottom of the swing rod is hinged to one end of a connecting rod. The other end of the connecting rod is hinged to a protrusion on the push plate extending towards the swing rod. When the swing rod is moved, the movable block is pushed towards the fixed seat.

[0010] Furthermore, the clamping assembly has a downward-extending support rod on its rotating rod, which is hinged to the side of the connecting seat near the output end of the lifting member where the rotating rod is hinged. The top of the connecting seat is provided with a constraint groove to restrict the rotating rod from continuing to rotate downward.

[0011] Furthermore, it also includes a pressing assembly, which includes a lifting member, a support base, a swing arm, and a pressing block. The support base is disposed adjacent to the seat cushion bracket positioning assembly and is detachably mounted on the base plate. The lifting member is fixedly disposed on one side of the support base, and its output end is hinged to the swing arm. The swing arm is provided with at least one pressing block to press the seat cushion wiring harness mounting bracket onto the fixed base and the positioning base.

[0012] Furthermore, the swing arm extends downward with a support plate, which is hinged to the side of the support seat near the output end of the lifting member where the swing arm is hinged. The top of the support seat is provided with a limiting groove to restrict the swing arm from continuing to rotate downward.

[0013] Furthermore, the support base is provided with a first sensor below the seat cushion wiring harness mounting bracket for detecting the position of the seat cushion wiring harness mounting bracket, and the movable block is provided with a second sensor on the back of the positioning post for detecting the position of the driver's seat wiring harness mounting bracket.

[0014] The welding fixture for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model has at least the following technical effects:

[0015] The seat cushion bracket positioning assembly uses a lifting mechanism to drive a moving block to a designated position, allowing one end of the seat cushion wiring harness mounting bracket to pass through the positioning pin for initial positioning and to be stably and horizontally placed on the fixed and positioning seats. Subsequently, the driver's seat bracket positioning assembly's translation mechanism pushes a movable block towards the seat cushion wiring harness mounting bracket to a preset position, accurately positioning the upper end of the driver's seat wiring harness mounting bracket via a positioning pin. Next, the clamping assembly's lifting mechanism actuates, driving one end of a rotating rod to rise, causing the other end of the rod to rotate the clamping block downwards, pressing the bottom of the driver's seat wiring harness mounting bracket tightly against the top of the seat cushion wiring harness mounting bracket. Afterwards, the contact points are welded together into a welded assembly using manual or mechanical equipment. The fixed and positioning seats provide stable support throughout the welding process, effectively preventing product deformation.

[0016] After welding is completed, the clamping block remains pressed against the driver's seat wiring harness mounting bracket. The lifting component moves the moving block downward, causing the seat wiring harness mounting bracket to automatically disengage from the positioning pin. The translating component resets, causing the driver's seat wiring harness mounting bracket to automatically disengage from the positioning post. Finally, the lifting component drives the rotating rod downward, causing the clamping block to rotate upward and release the driver's seat wiring harness mounting bracket, thus facilitating the removal of the finished welded assembly. The above process can be repeated and is suitable for continuous production.

[0017] This fixture uses locating pins and locating posts to precisely position the seat cushion wiring harness mounting bracket and the driver's side wiring harness mounting bracket, respectively. Combined with the stable support of the fixing seat and the locating seat, and the reliable pressing of the clamping blocks, it achieves high repeatability in positioning the products to be welded, improving production efficiency. Because the driver's side bracket positioning assembly, fixing seat, seat cushion bracket positioning assembly, and clamping assembly all adopt a modular design and are detachably mounted on the base plate, components can be quickly switched and their relative positions adjusted according to different product specifications, significantly improving the fixture's applicability and adjustment efficiency. This structure supports the clamping and fixing needs of mounting brackets of the same type but different specifications for various vehicle models, achieving fixture universality and effectively reducing the development and manufacturing costs of dedicated tooling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the welding fixture for the car seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0020] Figure 2 The welding structure diagram of the seat harness mounting bracket and the driver's seat harness mounting bracket provided in the embodiments of this utility model.

[0021] Figure 3 This is a structural diagram of the seat support positioning component of the welding clamp for the automotive seat wiring harness mounting bracket provided in an embodiment of the present utility model.

[0022] Figure 4 Another structural diagram of the seat support positioning assembly of the welding clamp for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0023] Figure 5 A structural diagram of the driver's seat bracket positioning assembly of the welding clamp for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0024] Figure 6 Another structural diagram of the driver's seat bracket positioning assembly of the welding clamp for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0025] Figure 7 This is a structural diagram of the fixing seat of the welding clamp for the car seat wiring harness mounting bracket provided in an embodiment of the present utility model.

[0026] Figure 8 A schematic diagram of the clamping assembly of the welding fixture for the automotive seat wiring harness mounting bracket provided in this embodiment of the present invention, showing the clamping state.

[0027] Figure 9 This is a schematic diagram of the loosened state of the clamping assembly of the welding fixture for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0028] Figure 10 This is a structural schematic diagram of the clamping state of the welding clamping assembly of the automotive seat wiring harness mounting bracket provided in an embodiment of the present utility model.

[0029] Figure 11 A schematic diagram of the loosened state of the clamping assembly of the welding fixture for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0030] Figure 12 A structural diagram of the workbench of the welding fixture for the automotive seat wiring harness mounting bracket provided in this embodiment of the utility model.

[0031] In the diagram, 100 is the worktable, 110 is the through slot, 120 is the base plate, and 121 is the mounting hole.

[0032] 200. Driver's seat bracket positioning assembly; 210. Mounting base; 220. Translation component; 230. Movable block; 231. Positioning block; 240. Positioning post; 250. Guide plate; 251. Horizontal plate; 252. U-shaped groove; 260. Push rod; 270. Push plate; 271. Connecting rod; 280. Swing rod; 290. Second sensor.

[0033] 300. Fixing base; 310. First fixing block; 320. Second fixing block.

[0034] 400. Seat cushion support positioning assembly; 410. Positioning seat; 411. Limiting block; 412. Support block; 420. Lifting component; 430. Moving block; 440. Positioning pin.

[0035] 500. Clamping assembly; 510. Connecting seat; 520. Lifting component; 530. Rotating rod; 531. Support rod; 540. Clamping block; 550. Stop block; 560. Constraint groove.

[0036] 600. Clamping assembly; 610. Lifting component; 620. Support base; 630. Swing arm; 631. Support plate; 640. Pressure block; 650. Limiting groove; 660. First sensor.

[0037] 700. Seat cushion wiring harness mounting bracket.

[0038] 800. Driver's cab wiring harness mounting bracket. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0040] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0043] In one embodiment of the welding clamp for the automotive seat wiring harness mounting bracket of this utility model, please refer to... Figures 1 to 12 A welding fixture for a car seat cushion wiring harness mounting bracket includes a worktable 100, a base plate 120, a seat cushion bracket positioning assembly 400, a driver's seat bracket positioning assembly 200, a fixing seat 300, and a clamping assembly 500. The worktable 100 has a through slot 110. The base plate 120 is mounted on the worktable 100 and covers the through slot 110. The base plate 120 has multiple through mounting holes 121 that connect to the through slot 110. The driver's seat bracket positioning assembly 200, the fixing seat 300, and the seat cushion bracket positioning assembly 400 are mounted from the left... The components are detachably mounted on the base plate 120 from right to left. The fixing seat 300 supports the left side of the seat harness mounting bracket 700. The driver's seat bracket positioning assembly 200 includes a mounting base 210, a translation component 220, a movable block 230, and a positioning post 240. The mounting base 210 is detachably mounted on the base plate 120. The translation component 220 is fixedly mounted on one side of the mounting base 210, and its output end is connected to the movable block 230. The movable block 230 has a positioning post 240 on the side facing the seat harness positioning assembly 400 for positioning the driver's seat harness mounting bracket. The seat support mounting bracket 800 is positioned above the seat support mounting bracket 700. The seat support positioning assembly 400 includes a positioning seat 410, a lifting member 420, a moving block 430, and a positioning pin 440. The positioning seat 410 is detachably mounted on the base plate 120. The lifting member 420 is fixedly mounted on one side of the positioning seat 410, and its output end is connected to the moving block 430. The top of the moving block 430 is provided with at least one positioning pin 440 for positioning the seat support mounting bracket 700. The top of the positioning seat 410 supports the seat. On the right side of the wiring harness mounting bracket 700; the clamping assembly 500 includes a connecting seat 510, a lifting member 520, a rotating rod 530 and a clamping block 540. The connecting seat 510 is detachably mounted on the base plate 120 and located on one side of the mounting seat 210. The lifting member 520 is fixed to the connecting seat 510, and its output end is hinged to the rotating rod 530. The other end of the rotating rod 530 is provided with a clamping block 540. The lifting member 520 drives the rotating rod 530 to rotate downward, thereby causing the clamping block 540 to press the driver's wiring harness mounting bracket 800 onto the seat wiring harness mounting bracket 700.

[0044] A guide plate 250 is provided on the side of the translation component 220 away from the movable block 230. Multiple push rods 260 are provided on the guide plate 250. One end of the push rod 260 slides through the guide plate 250 and the translation component 220 and is connected to the movable block 230. The other end is fixedly connected to the push plate 270. A horizontal plate 251 is provided on the top side of the guide plate 250 away from the translation component. The other end of the horizontal plate 251 is provided with an open U-shaped groove 252. The U-shaped groove 252 is hinged to the middle of a swing rod 280. The bottom of the swing rod 280 is hinged to one end of a connecting rod 271. The other end of the connecting rod 271 is hinged to a protrusion on the push plate 270 extending toward the swing rod 280. When the swing rod 280 is moved, the movable block 230 is pushed toward the fixed seat 300.

[0045] It also includes a pressing assembly 600, which includes a lifting member 610, a support base 620, a swing arm 630, and a pressing block 640. The support base 620 is located adjacent to the seat cushion bracket positioning assembly 400 and is detachably mounted on the base plate 120. The lifting member 610 is fixedly mounted on one side of the support base 620, and its output end is hinged to the swing arm 630. The swing arm 630 is provided with at least one pressing block 640 to press the seat cushion wiring harness mounting bracket 700 onto the fixed base 300 and the positioning base 410.

[0046] Specifically, the seat cushion bracket positioning assembly 400 drives the moving block 430 to rise to a designated position via the lifting component 420, so that the right end of the seat cushion wiring harness mounting bracket 700 passes through the positioning pin 440 to achieve initial positioning and is stably placed horizontally on the fixed base 300 and the positioning base 410; then, the swing arm 280 is manually moved, and the bottom of the swing arm 280 pushes the connecting rod 271 and the push plate 270, which drives the push rod 260 connected to the push plate 270 to move. Under the guidance of the guide plate 250 and the translation component 220, the push rod 260 pushes the movable block 230 to move horizontally towards the seat cushion wiring harness mounting bracket 700. The driver's seat wiring harness mounting bracket 800 is pre-positioned so that its upper end is precisely positioned by the positioning pin 240. Next, the lifting member 520 of the clamping assembly 500 drives one end of the rotating rod 530 to rise, causing the other end of the rotating rod 530 to rotate the clamping block 540 downwards, pressing the bottom of the driver's seat wiring harness mounting bracket 800 tightly against the top of the seat cushion wiring harness mounting bracket 700. Then, the lifting member 610 of the clamping assembly 600 drives one end of the swing arm 630 to rise, causing the other end of the swing arm 630 to drive the pressure block 640 to press the seat cushion wiring harness mounting bracket 700 firmly onto the fixed seat 300 and the positioning seat 410. Finally, the contact points of the seat cushion wiring harness mounting bracket 700 and the driver's seat wiring harness mounting bracket 800 are welded together to form a welded assembly using manual or mechanical equipment. Throughout the welding process, the fixed seat 300 and the positioning seat 410 provide stable support, and the clamping block 540 and the pressure block 640 work together to effectively prevent the workpiece from shifting or deforming during welding.

[0047] After welding, clamping block 540 and pressure block 640 remain in a pressed state. Lifting component 420 drives moving block 430 downward, causing seat harness mounting bracket 700 to automatically disengage from positioning pin 440. Translation component 220 resets, causing driver harness mounting bracket 800 to automatically disengage from positioning post 240. Swing arm 280 rotates within U-groove 252 to return to its initial position. Subsequently, clamping component 500 and pressure component 600 reset, lifting component 520 drives rotating rod 530 downward, causing clamping block 540 to rotate upward, releasing driver harness mounting bracket 800. Lifting component 610 drives swing arm 630 downward, causing pressure block 640 to rotate upward, releasing seat harness mounting bracket 700, thereby releasing the finished welded assembly for easy removal.

[0048] Before welding, the swing arm 280 is manually pushed, causing the movable block 230 and positioning post 240 of the driver's seat bracket positioning assembly to move towards the seat cushion bracket positioning assembly 400. By controlling the translation distance, the clamping and positioning of the driver's seat wiring harness mounting bracket 800 is facilitated. This fixture achieves precise positioning of the two brackets through the positioning pin 440 and positioning post 240 respectively. Combined with the stable support of the fixed base 300 and positioning base 410, and the reliable pressing of the clamping block 540 and pressure block 640, it ensures high repeatability of the positioning accuracy of the product to be welded.

[0049] Furthermore, since the driver's seat bracket positioning component 200, the fixing seat 300, the seat cushion bracket positioning component 400, the clamping component 600, and the clamping component 500 are all modularly designed and detachably installed on the base plate 120, the components can be quickly switched and their relative positions adjusted according to workpieces of different specifications. This significantly improves the applicability and adjustment efficiency of the fixture, supports the clamping and fixing requirements of mounting brackets of the same type but different specifications for various vehicle models, realizes the universality of the fixture, and effectively reduces the development and manufacturing costs of special tooling.

[0050] Preferably, the driver's seat positioning assembly 200 is secured to the base plate 120 by passing locking bolts sequentially through the through slot 110 of the worktable, the mounting hole 121 of the base plate, and the mounting base 210, thereby achieving stable installation of the driver's seat positioning assembly 200 and the base plate 120 of the entire module. This connection method supports quick disassembly and switching, and other components can also be installed on the base plate 120 using the same locking method.

[0051] For further details, please refer to... Figure 3 and Figure 4The top of the positioning seat 410 is provided with a limiting block 411 and at least one support block 412. The support block 412 is used to support the seat cushion wiring harness mounting bracket 700, and the limiting block 411 is used to limit the upward stroke of the moving block 430, so that the top of the support block 412 is higher than the top of the moving block 430 and lower than the top of the positioning pin 440. Specifically, there are preferably two support blocks 412, located at the front and rear ends of the positioning seat 410 respectively. The limiting block 411 is located between the two support blocks 412, and one end of it extends out of the outside of the positioning seat 410 to abut against the moving block 430. When the lifting member 420 drives the moving block 430 to rise to the designated position, the limiting block 411 abuts against the moving block 430, limiting its continued upward movement; then the seat cushion wiring harness mounting bracket 400 is pressed down, so that it passes through the positioning pin 440 to achieve positioning, and the two support blocks 412 jointly support the front and rear ends of the right side of the bracket.

[0052] For further details, please refer to... Figure 7 The mounting base 300 is provided with a first fixing block 310 and at least one second fixing block 320, with the top ends of the first fixing block 310 and the second fixing block 320 staggered left and right. When the clamping block 540 is in the state of pressing the driver harness mounting bracket 800, the clamping block 540 is located directly above the first fixing block 310. Specifically, there are preferably two second fixing blocks 320, located at the front and rear ends of the mounting base 300 respectively. The first fixing block 310 is arranged between the two second fixing blocks 320, with one end extending out of the outside of the mounting base 300, and its top, together with the two second fixing blocks 320, supports the left side of the seat harness mounting bracket 700. When the clamping block 540 of the clamping assembly 500 presses against the driver harness mounting bracket 800, the clamping block 540 is located directly above the first fixing block 310 and works in conjunction with the first fixing block 310 to clamp the driver harness mounting bracket 800 and the seat harness mounting bracket 700 from the upper and lower sides, keeping them in close contact and thus ensuring the connection stability during the welding process.

[0053] Preferably, please refer to Figure 10 and Figure 11 The swing arm 630 extends toward the two second fixing blocks 320 and the two support blocks 412, forming four support arms. Each support arm has a pressure block 640 at its bottom for clamping the seat harness mounting bracket 700. A gap is provided between the two support arms near the driver's seat bracket positioning assembly 200 to provide clearance for the rotation of the clamping block 540. Specifically, the four pressure blocks 640 are vertically aligned with the two second fixing blocks 320 and the two support blocks 412, respectively, thereby stably clamping the seat harness mounting bracket 700 and preventing it from shifting or deforming during welding. The spacing between the support arms ensures that the clamping block 540 can rotate freely up and down when clamping or releasing the driver's seat harness mounting bracket 800, avoiding interference with the swing arm 630.

[0054] Further, please refer to Figure 1 and Figure 2 The top surfaces of the two support blocks 412, the two second fixing blocks 320, and the first fixing block 310 are designed to be non-coplanar to adapt to the uneven shape of the surface of the seat cushion wiring harness mounting bracket 700 and ensure stable support.

[0055] For further details, please refer to... Figure 8 and Figure 9 The connecting seat 510 is equipped with a stop block 550, the free end of which is located above the movable block 230. Its side is on the same plane as the side of the movable block 230 where the positioning post 240 is located, and is used to abut against the driver's cab wiring harness mounting bracket 800. Specifically, after the driver's cab wiring harness mounting bracket 800 is positioned on the side of the movable block 230 by the positioning post 240, the stop block 550 and the clamping block 540 work together to apply pressure from both sides to clamp the upper end of the driver's cab wiring harness mounting bracket 800. After welding is completed, the translation component 220 drives the movable block 230 to reset; at this time, the stop block 550 still maintains contact with the driver's cab wiring harness mounting bracket 800 and works with the clamping block 540 to maintain the clamping state, thereby ensuring that the positioning post 240 on the movable block 230 can smoothly disengage from the driver's cab wiring harness mounting bracket 800.

[0056] For further details, please refer to... Figure 5 and Figure 6 The movable block 230 has positioning blocks 231 on both sides of the positioning post 240. The ends of the two positioning blocks 231 extend beyond the side of the movable block 230 along a direction parallel to the axis of the positioning post 240, and are used to limit the front and rear sides of the driver harness mounting bracket 800. Specifically, the positioning blocks 231 and the movable block 230 are detachably connected, and a shim is provided between them to adjust the distance between the two positioning blocks 231 to meet the clamping and positioning requirements of the front and rear sides of the driver harness mounting bracket 800 of different sizes. This structure, together with the clamping block 540 and the stop block 550, effectively enhances the stability of the driver harness mounting bracket 800 during the welding process.

[0057] For further details, please refer to... Figure 9The clamping assembly 800 has a downward-extending support rod 531 on its rotating rod 530. The support rod 531 is hinged to a connecting seat 510 near the output end of the lifting member 520, where the rotating rod 530 is hinged. The top of the connecting seat 510 has a constraint groove 560 to limit the downward rotation of the rotating rod 530. Specifically, the constraint groove 560 has an open top and is open on both sides, used to limit the movement of the rotating rod 530. When the lifting member 520 drives one end of the rotating rod 530 upward, the other end of the rotating rod 530 drives the clamping block 540 downward, pressing against the driver's seat wiring harness mounting bracket 800. At this time, the constraint groove 560 limits the rotation of the rotating rod 530, preventing the end with the clamping block 540 from continuing to rotate downward, thereby avoiding excessive downward pressure on the clamping block 540 and protecting the driver's seat wiring harness mounting bracket 800 and the seat cushion wiring harness mounting bracket 700 from damage.

[0058] For further details, please refer to... Figure 11 The swing arm 630 extends downwards to form a support plate 631. The support plate 631 is hinged to a support base 620 near the output end of the lifting member 610, which is hinged to one side of the swing arm 630. The top of the support base 620 is provided with a limiting groove 650 to restrict the swing arm 630 from continuing to rotate downwards. Specifically, the limiting groove 650 has an open top and is open on both the front and rear sides to limit the movement of the swing arm 630. When the lifting member 610 drives one end of the swing arm 630 to rise, the other end of the swing arm 630 drives the pressure block 640 to move downwards, pressing against the seat cushion wiring harness mounting bracket 700. At this time, the limiting groove 650 limits the swing arm 630, preventing the end with the pressure block 640 from continuing to rotate downwards, thereby avoiding excessive downward pressure from the pressure block 640 and protecting the seat cushion wiring harness mounting bracket 700 from damage.

[0059] For further details, please refer to... Figure 5 and Figure 11The support base 620 has a first sensor 660 located below the seat cushion wiring harness mounting bracket 700 for detecting the position of the seat cushion wiring harness mounting bracket 700. The movable block 230 has a second sensor 290 located on the back of the positioning post 240 for detecting the position of the driver's seat wiring harness mounting bracket 800. Specifically, when the movable block 430 of the seat cushion bracket positioning assembly 400 rises to the designated position, one end of the seat cushion wiring harness mounting bracket 700 passes through the positioning pin 440 to complete initial positioning and is placed horizontally and stably on the fixed base 300 and the positioning base 410. At this time, the first sensor 660 detects that the seat cushion wiring harness mounting bracket 700 has been positioned and emits a light signal. Subsequently, the movable block 230 of the driver's seat bracket positioning assembly 200 moves to the preset position, and the upper end of the driver's seat wiring harness mounting bracket 800 is positioned by the positioning post 240. After the second sensor 290 detects that it has been positioned, it also emits a light signal. Next, the clamping assembly 500 and the pressing assembly 600 operate sequentially to press the driver's seat wiring harness mounting bracket 700 and the seat cushion wiring harness mounting bracket 800 together, allowing welding to proceed. The sensor system effectively ensures the positioning accuracy of the two brackets, providing a reliable guarantee for subsequent welding.

[0060] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a car seat cushion wiring harness mounting bracket, characterized in that, Includes the worktable, base plate, seat cushion bracket positioning assembly, driver's seat bracket positioning assembly, mounting base, and clamping assembly. The workbench has a through slot, and the base plate is mounted on the workbench and covers the through slot. The base plate has multiple through mounting holes that communicate with the through slot. The driver's seat bracket positioning assembly, the fixing seat, and the seat cushion bracket positioning assembly are detachably mounted on the base plate from left to right. The fixing seat is used to support the left side of the seat cushion wiring harness mounting bracket. The driver's seat bracket positioning assembly includes a mounting base, a translation component, a movable block, and a positioning post. The mounting base is detachably mounted on the base plate. The translation component is fixedly mounted on one side of the mounting base, and its output end is connected to the movable block. The movable block has a positioning post on the side facing the seat bracket positioning assembly, which is used to position the driver's seat wiring harness mounting bracket so that the driver's seat wiring harness mounting bracket is located above the seat bracket. The seat cushion bracket positioning assembly includes a positioning seat, a lifting component, a moving block, and a positioning pin. The positioning seat is detachably mounted on the base plate. The lifting component is fixedly mounted on one side of the positioning seat, and its output end is connected to the moving block. The top of the moving block is provided with at least one positioning pin for positioning the seat cushion wiring harness mounting bracket. The top of the positioning seat supports the right side of the seat cushion wiring harness mounting bracket. The clamping assembly includes a connecting seat, a lifting member, a rotating rod, and a clamping block. The connecting seat is detachably mounted on the base plate and located on one side of the mounting seat. The lifting member is fixed to the connecting seat, and its output end is hinged to the rotating rod. The other end of the rotating rod is provided with a clamping block. The lifting member drives the rotating rod to rotate downward, thereby causing the clamping block to press the driver harness mounting bracket onto the seat harness mounting bracket.

2. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 1, characterized in that: The top of the positioning seat is provided with a limiting block and at least one support block at intervals. The support block is used to support the seat cushion wiring harness mounting bracket, and the limiting block is used to limit the upward stroke of the moving block, so that the top of the support block is higher than the top of the moving block and lower than the top of the positioning pin.

3. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 1, characterized in that: The mounting base is provided with a first fixing block and at least one second fixing block, with the top ends of the first fixing block and the second fixing block staggered to the left and right; when the clamp is in the state of pressing the driver harness mounting bracket, the clamp is located directly above the first fixing block.

4. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 1, characterized in that: The connector is provided with a stop block, the free end of which is located above the movable block, and its side is on the same plane as the side of the movable block with the positioning post, for abutting against the driver harness mounting bracket.

5. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 1, characterized in that: The movable block has positioning blocks on both sides of the positioning post. The ends of the two positioning blocks extend beyond the side of the movable block in a direction parallel to the axis of the positioning post, and are used to limit the front and rear sides of the driver harness mounting bracket.

6. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 5, characterized in that: The translation component has a guide plate on the side away from the movable block. The guide plate has multiple push rods. One end of each push rod slides through the guide plate and the translation component and connects to the movable block. The other end is fixedly connected to the push plate. The top of the guide plate has a horizontal plate on the side away from the translation component. The other end of the horizontal plate has an open U-shaped groove. The U-shaped groove is hinged to the middle of a swing rod. The bottom of the swing rod is hinged to one end of a connecting rod. The other end of the connecting rod is hinged to a protrusion on the push plate extending towards the swing rod. When the swing rod is moved, it pushes the movable block to move towards the fixed seat.

7. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 1, characterized in that: The clamping assembly has a rotating rod extending downwards with a support rod, which is hinged to the side of the connecting seat near the output end of the lifting member where the rotating rod is hinged. The top of the connecting seat is provided with a constraint groove to limit the rotating rod from continuing to rotate downwards.

8. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 1, characterized in that: It also includes a pressing assembly, which includes a lifting member, a support base, a swing arm, and a pressing block. The support base is disposed adjacent to the seat cushion bracket positioning assembly and is detachably mounted on the base plate. The lifting member is fixedly disposed on one side of the support base, and its output end is hinged to the swing arm. The swing arm is provided with at least one pressing block to press the seat cushion wiring harness mounting bracket onto the fixed base and the positioning base.

9. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 8, characterized in that: The swing arm extends downward with a support plate, which is hinged to the side of the support base near the output end of the lifting member where the swing arm is hinged. The top of the support base is provided with a limiting groove to restrict the swing arm from continuing to rotate downward.

10. The welding fixture for the automotive seat cushion wiring harness mounting bracket according to claim 8, characterized in that: The support base has a first sensor below the seat cushion wiring harness mounting bracket for detecting the position of the seat cushion wiring harness mounting bracket, and the movable block has a second sensor on the back of the positioning post for detecting the position of the driver's seat wiring harness mounting bracket.

Images