Automobile seat rear cross beam assembly testing fixture

By designing an inspection fixture for the rear crossbeam assembly of a car seat with adjustable and auxiliary structures, accurate measurement of complex curved crossbeams has been achieved, expanding the scope of application and improving safety, and solving the problem that traditional inspection fixtures cannot accurately measure complex curved crossbeams.

CN224933384UActive Publication Date: 2026-11-03WUXI MACHINE MACHINERY MFG
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Patent Information

Application Number
CN202521920577.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-11-03
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

Traditional inspection tools are difficult to accurately measure the rear crossbeams of car seats with complex curved surfaces or concave and convex features, which reduces the applicability of the inspection tools.

Method used

A fixture for the rear crossbeam assembly of an automotive seat, including an adjustment structure and an auxiliary structure, was designed. The fixture uses a servo motor to drive a lead screw and a slider to automatically adjust the position of the push rod. It is also equipped with a suction cup and an electric push rod to securely attach the seat crossbeam, eliminating the need for manual operation.

Benefits of technology

It improves the ability to inspect uneven car seat rear crossbeams, expands the scope of application of the inspection tool, enhances safety in use, prevents hand pinching injuries, and improves measurement efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of testing fixture, especially a kind of automobile seat rear cross beam assembly testing fixture. Including workbench, workbench is set to hollow structure, the lower surface of workbench is fixedly connected with several support columns, the side of workbench is equipped with box door, the side of workbench is equipped with controller, the inside of controller is provided with power module and central processing system, the upper surface of workbench is equipped with adjusting structure, adjusting structure includes two sliding holes, sliding hole is opened in the surface of workbench, sliding hole is connected with the inside of workbench, the inner wall of sliding hole is slidably connected with slider, the upper surface of slider is fixedly connected with adjusting plate. The utility model provides a kind of automobile seat rear cross beam assembly testing fixture can detect the size of uneven automobile seat rear cross beam, can detect whether the size data of different models, size automobile seat rear cross beam is in compliance, improve the application range of testing fixture.
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Description

Technical Field

[0001] This utility model relates to the field of inspection tools, and in particular to an inspection tool for the rear crossbeam assembly of an automobile seat. Background Technology

[0002] The automotive seat rear crossbeam assembly gauge is a specialized tool used to inspect the dimensional accuracy of the automotive seat rear crossbeam, and can measure whether the dimensions of the rear crossbeam meet the design requirements.

[0003] Utility model patent CN223091174U discloses a fixture for inspecting welded assemblies of automotive seat crossbeams. The key technical features include: a base plate and main and auxiliary positioning pins, four clamping clamps, six horizontal tilting mechanisms, and six vertical tilting mechanisms mounted on the base plate. A product support block is horizontally positioned in the center of the base plate, and the top surface of the product support block has four positioning surfaces. Of the six horizontal tilting mechanisms, three are distributed from left to right in the center of the front side of the product support block, two are distributed at the left and right ends of the rear side of the product support block, and the remaining one is distributed in the center of the rear side of the product support block. This fixture for inspecting welded assemblies of automotive seat crossbeams is simple to operate, inexpensive, and can simultaneously and quickly determine whether the positioning through-hole positions and surface contours of the welded assemblies of automotive seat crossbeams are qualified. It improves measurement efficiency and reduces measurement costs.

[0004] Regarding the above-mentioned issues, the following technical defects were found: traditional inspection tools are only suitable for beams with flat or simple geometric shapes, and it is difficult to accurately measure the rear crossbeams of car seats with complex curved surfaces or concave and convex features, which reduces the applicability of the inspection tools. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and to propose a tooling for inspecting the rear crossbeam assembly of an automobile seat.

[0006] To solve the above-mentioned technical problems, this utility model provides a vehicle seat rear crossbeam assembly inspection fixture, including: a workbench, the workbench being a hollow structure, with several support columns fixedly connected to the lower surface of the workbench, a door installed on one side of the workbench, a controller installed on one side of the workbench, the controller having a power supply module and a central processing system inside, an adjustment structure provided on the upper surface of the workbench, the adjustment structure including two sliding holes, the sliding holes being formed on the surface of the workbench and communicating with the interior of the workbench, a slider being slidably connected to the inner wall of the sliding hole, an adjustment plate being fixedly connected to the upper surface of the slider, several connecting holes being formed on the upper surface of the adjustment plate, a push rod slidably passing through the inner wall of the connecting holes, the push rod having a "T" shaped cross section, a spring being fitted on the arc surface of the push rod, the two ends of the spring being fixedly connected to the push rod and the adjustment plate respectively, several scales being provided on the upper surface of the adjustment plate, a pointer being fixedly connected to the arc surface of the connecting rod, the pointer corresponding to the position of the scales.

[0007] The effect achieved by the above-mentioned components is that, by setting an adjustment structure, the inspection tool can inspect the dimensions of uneven car seat rear crossbeams, and can detect whether the dimensional data of car seat rear crossbeams of different models and sizes are compliant, thereby improving the applicability of the inspection tool.

[0008] Preferably, a lead screw is threaded through the side of the two sliders, and the lead screw has a bidirectional thread on its arc surface. The lead screw is rotatably connected to the inner wall of the worktable, and a servo motor is fixedly connected to one side of the outer wall of the worktable. The output end of the servo motor is fixedly connected to the lead screw.

[0009] The effect achieved by the above components is that starting the servo motor can drive the lead screw to rotate, and the lead screw will drive the two sliders to move simultaneously in the direction of each other or away from each other, thus achieving the effect of automatically controlling the movement of the sliders and the adjustment plate.

[0010] Preferably, a support plate is fixedly connected to the upper surface of the adjusting plate, an electric cylinder is fixedly connected to the upper surface of the support plate, a connecting plate is fixedly connected to the output end of the electric cylinder, a plurality of arc plates are fixedly connected to the lower surface of the connecting plate, the arc plates are positioned corresponding to the top rod, and a plurality of guide rods are slidably passed through the surface of the support plate, the lower ends of the guide rods are fixedly connected to the upper surface of the connecting plate.

[0011] The effect achieved by the above components is that by setting the above structure, the top rod can be locked to prevent the pointer from shaking when the personnel are observing the size values ​​displayed by the pointer and the scale.

[0012] Preferably, one end of the top rod is fixedly connected to an anti-collision pad, which is a rubber pad.

[0013] The effect achieved by the above components is that by setting a rubber anti-collision pad at one end of the push rod, the flexibility of the end of the push rod near the rear crossbeam of the seat can be improved, thus preventing the push rod from pinching and damaging the rear crossbeam of the seat.

[0014] Preferably, the upper surface of the workbench is provided with an auxiliary structure, the auxiliary structure including a partition, the lower surface of the partition being fixedly connected to the upper surface of the workbench, a connecting rod being slidably passed through the side of the partition, one end of the connecting rod being fixedly connected to a suction cup, and a positioning rod being slidably passed through the side of the partition, one end of the positioning rod being fixedly connected to the arc surface of the connecting rod.

[0015] The effect achieved by the above-mentioned components is as follows: by setting up an auxiliary structure, when it is necessary to inspect the dimensions of different positions of the rear crossbeam of the car seat, the operator can use the suction cup to adjust the position of the rear crossbeam of the car seat, avoiding the need for the operator to directly adjust the rear crossbeam of the car seat by hand, preventing the push rod from pinching the operator's hand, and improving the safety of using the rear crossbeam assembly inspection tool.

[0016] Preferably, the connecting rod is a hollow structure, the connecting rod is connected to the suction cup, an electric actuator is fixedly connected to the outer wall of the connecting rod, an ear plate is fixedly connected to the output end of the electric actuator, a piston slides on the inner wall of the connecting rod, and one side of the piston is fixedly connected to one side of the long arm end of the ear plate.

[0017] The effect achieved by the above components is that by setting the above structure, the suction cup can be more firmly attached to the rear crossbeam of the car seat.

[0018] Preferably, a handle is fixedly connected to the arc surface of the connecting rod, and the cross-section of the handle is U-shaped.

[0019] The effect achieved by the above components is that the operator can move the connecting rod with the help of the handle, thus achieving convenient control of the connecting rod.

[0020] Compared with related technologies, the inspection fixture for the rear crossbeam assembly of an automobile seat provided by this utility model has the following beneficial effects: This utility model provides a tooling for inspecting the rear crossbeam assembly of a car seat. By setting an adjustment structure, the tooling can inspect the dimensions of uneven rear crossbeams of car seats, and can detect whether the dimensional data of rear crossbeams of different models and sizes of car seats are compliant, thus improving the applicability of the tooling.

[0021] By setting up an auxiliary structure, when it is necessary to inspect the dimensions of different positions of the rear crossbeam of the car seat, the operator can use a suction cup to adjust the position of the rear crossbeam of the car seat, avoiding the need for personnel to directly adjust the rear crossbeam of the car seat by hand, preventing the push rod from pinching the personnel's hands, and improving the safety of using the rear crossbeam assembly inspection tool. Attached Figure Description

[0022] Figure 1 A structural schematic diagram of a vehicle seat rear crossbeam assembly inspection fixture provided by this utility model; Figure 2 for Figure 1 The diagram shows the structural schematic of the adjustment structure. Figure 3 for Figure 1 A partial structural diagram of the adjustment structure is shown; Figure 4 for Figure 3 The diagram shows a partial structure. Figure 5 for Figure 1 The diagram shows the structure of the support plate in the adjustment structure. Figure 6 for Figure 1 The diagram shows the structure of the auxiliary structure. Figure 7 for Figure 1 A partial structural diagram of the auxiliary structure shown.

[0023] The diagram is labeled as follows: 1. Workbench; 2. Door; 3. Adjustment structure; 301. Sliding hole; 302. Slider; 303. Adjustment plate; 304. Connecting hole; 305. Top rod; 306. Spring; 307. Pointer; 308. Scale; 309. Anti-collision pad; 310. Lead screw; 311. Servo motor; 312. Support plate; 313. Electric cylinder; 314. Connecting plate; 315. Arc plate; 316. Guide rod; 4. Auxiliary structure; 41. Partition plate; 42. Connecting rod; 43. Suction cup; 44. Positioning rod; 45. Handle; 46. Electric actuator; 47. Ear plate; 48. Piston; 5. Support column; 6. Controller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figure 1 The present invention provides a vehicle seat rear crossbeam assembly inspection fixture, comprising: a workbench 1, the workbench 1 being a hollow structure, a plurality of support columns 5 being fixedly connected to the lower surface of the workbench 1, a door 2 being installed on one side of the workbench 1, and a controller 6 being installed on one side of the workbench 1, the controller 6 having a power supply module and a central processing system inside.

[0027] The upper surface of the worktable 1 is provided with an adjustment structure 3 and an auxiliary structure 4.

[0028] The central processing system is used to control the adjustment structure 3 and the auxiliary structure 4. The process and principle of the central control system receiving and generating signals are similar to those of common existing control systems and are not the focus of this invention, so they will not be described in detail.

[0029] In the embodiments of this utility model, please refer to Figures 2 to 5The adjustment structure 3 includes two sliding holes 301. The sliding holes 301 are opened on the surface of the workbench 1 and are connected to the interior of the workbench 1. A slider 302 is slidably connected to the inner wall of the sliding hole 301. An adjustment plate 303 is fixedly connected to the upper surface of the slider 302. Several connecting holes 304 are opened on the upper surface of the adjustment plate 303. A top rod 305 is slidably passed through the inner wall of the connecting hole 304. The cross-section of the top rod 305 is "T" shaped. A spring 306 is sleeved on the arc surface of the top rod 305. The two ends of the spring 306 are fixedly connected to the top rod 305 and the adjustment plate 303 respectively. Several scales 308 are provided on the upper surface of the adjustment plate 303. A pointer 307 is fixedly connected to the arc surface of the connecting rod 42. The pointer 307 corresponds to the position of the scales 308. By setting the adjustment structure 3, the inspection tool can inspect the dimensions of uneven car seat rear crossbeams, and can check whether the dimensional data of car seat rear crossbeams of different models and sizes are compliant, thus improving the applicability of the inspection tool. A lead screw 310 is threaded through the side of the two sliders 302. The lead screw 310 has a bidirectional thread on its arc surface. The lead screw 310 is rotatably connected to the inner wall of the worktable 1. A servo motor 311 is fixedly connected to one side of the outer wall of the worktable 1, and the output end of the servo motor 311 is fixedly connected to the lead screw 310. Starting the servo motor 311 drives the lead screw 310 to rotate, which in turn drives the two sliders 302 to move simultaneously towards each other or away from each other, achieving the effect of automatically controlling the movement of the sliders 302 and the adjustment plate 303. A support plate 312 is fixedly connected to the upper surface of the adjusting plate 303. An electric cylinder 313 is fixedly connected to the upper surface of the support plate 312. A connecting plate 314 is fixedly connected to the output end of the electric cylinder 313. Several arc plates 315 are fixedly connected to the lower surface of the connecting plate 314. The arc plates 315 correspond to the positions of the push rod 305. Several guide rods 316 are slidably passed through the surface of the support plate 312. The lower ends of the guide rods 316 are fixedly connected to the upper surface of the connecting plate 314. Once the push rods 305 have moved to their appropriate positions according to the uneven sides of the seat's rear crossbeam, the electric cylinder 313 is activated to drive the connecting plate 314. Guided by the guide rod 316, the connecting plate 314 moves towards the push rods 305. The connecting plate 314 then drives the arc plate 315 to press against the arc surface of the push rods 305, locking the push rods 305 in place. This structure locks the push rods 305, preventing the pointer 307 from shaking when observing the dimensions displayed on the scale 308. One end of each push rod 305 is fixedly connected to an anti-collision pad 309, which is made of rubber. By using a rubber anti-collision pad 309 at one end of the push rod 305, the flexibility of the push rod 305 near the seat's rear crossbeam is increased, preventing the push rod 305 from pinching or damaging the rear crossbeam.

[0030] In the embodiments of this utility model, please refer to Figure 6 and Figure 7 The auxiliary structure 4 includes a partition 41, the lower surface of which is fixedly connected to the upper surface of the workbench 1. A connecting rod 42 is slidably threaded through the side of the partition 41, and a suction cup 43 is fixedly connected to one end of the connecting rod 42. A positioning rod 44 is slidably threaded through the side of the partition 41, and one end of the positioning rod 44 is fixedly connected to the arc surface of the connecting rod 42. By setting up the auxiliary structure 4, when it is necessary to inspect the dimensions of different positions of the rear crossbeam of the car seat, the operator can use the suction cup 43 to adjust the position of the rear crossbeam of the car seat, avoiding the need for the operator to directly adjust the rear crossbeam of the car seat by hand. This prevents the top rod 305 from pinching the operator's hand and improves the safety of using the rear crossbeam assembly inspection tool. The connecting rod 42 is a hollow structure, connected to the suction cup 43. An electric actuator 46 is fixedly connected to the outer wall of the connecting rod 42, and an ear plate 47 is fixedly connected to the output end of the electric actuator 46. A piston 48 slides along the inner wall of the connecting rod 42, with one side of the piston 48 fixedly connected to one side of the long arm end of the ear plate 47. When the suction cup 43 adsorbs the rear crossbeam of the car seat, the electric actuator 46 is activated, causing the ear plate 47 to move away from the connecting rod 42. The ear plate 47 then causes the piston 48 to slide along the inner wall of the connecting rod 42. At this time, the air inside the connecting rod 42 moves with the piston 48, thus making the suction cup 43 more firmly adsorbed onto the rear crossbeam of the car seat. When the rear crossbeam of the car seat moves to the appropriate position, the electric actuator 46 is activated, causing the ear plate 47 to move in the opposite direction, releasing the suction cup 43 from adsorbing onto the rear crossbeam of the car seat. By setting up the above structure, the suction cup 43 can be more firmly adsorbed onto the rear crossbeam of the car seat. A handle 45 is fixedly connected to the arc surface of the connecting rod 42. The handle 45 has a U-shaped cross-section. Personnel can move the connecting rod 42 with the help of the handle 45, thus achieving the effect of convenient control of the connecting rod 42. The working principle of the automotive seat rear crossbeam assembly inspection fixture provided by this utility model is as follows: When it is necessary to use the seat rear crossbeam assembly inspection fixture to inspect the dimensions of the crossbeam, first place the crossbeam on the workbench 1, so that the crossbeam is positioned between the left and right sets of top rods 305. Then, start the servo motor 311 to drive the lead screw 310 to rotate. The lead screw 310 drives the two sliders 302, so that the two sliders 302 move simultaneously along the inner wall of the sliding hole 301 towards each other. The sliders 302 drive the adjusting plate 303 to move, adjusting... The adjusting plate 303 drives the push rod 305. As the adjusting plate 303 moves, the push rod 305 contacts the side of the crossbeam. Subsequently, the spring 306 drives the push rod 305 to abut against the side of the crossbeam. At this time, the push rod 305 drives the pointer 307 to move. After several push rods 305 have moved to the appropriate positions according to the uneven side of the seat rear crossbeam, the electric cylinder 313 is activated to drive the connecting plate 314. The connecting plate 314 moves towards the push rod 305 under the guidance of the guide rod 316. The moving arc plate 315 presses against the arc surface of the top rod 305, locking the top rod 305 to prevent the pointer 307 from shaking when personnel are observing the dimensional values ​​displayed by the pointer 307 and the scale 308. At this time, personnel observe the data indicated by the scale 308. The sum of the data indicated by the left and right pointers 307 is the lateral data of the car seat. Personnel compare this data with the standard data to determine whether the crossbeam is qualified. After the data is recorded, the servo motor 311 is started to drive the lead screw 310 to rotate. When the lead screw 310 drives the two sliders 302 to move away from each other simultaneously, the sliders 302 drive the adjusting plate 303, and the adjusting plate 303 drives the push rod 305 to separate from the crossbeam. The spring 306 will drive the push rod 305 and the pointer 307 to return to their original positions. Finally, the crossbeam is removed from the worktable 1. By setting a rubber anti-collision pad 309 at one end of the push rod 305, the softness of the end of the push rod 305 near the crossbeam of the seat can be improved, which can prevent the push rod 305 from pinching the crossbeam of the seat.

[0031] The servo motor 311, electric cylinder 313, and electric actuator 46 are electrically connected to the controller 6 via wires.

[0032] When adjusting the position of the rear crossbeam of the car seat, first move the handle 45 to drive the connecting rod 42. Guided by the positioning rod 44, the connecting rod 42 moves the suction cup 43 closer to the rear crossbeam of the car seat. When the suction cup 43 contacts the rear crossbeam of the car seat, activate the electric actuator 46 to move the ear plate 47 away from the connecting rod 42. The ear plate 47 drives the piston 48 to slide along the inner wall of the connecting rod 42. At this time, the air inside the connecting rod 42 will move with the piston 48, which makes the suction cup 43 adhere to the rear crossbeam of the car seat more firmly. Then move the handle 45 to move the suction cup 43, and the position of the rear crossbeam of the car seat can be adjusted with the help of the suction cup 43. When the rear crossbeam of the car seat is adjusted to the appropriate position, activate the electric actuator 46 to move the ear plate 47 in the opposite direction. The ear plate 47 drives the piston 48 in the opposite direction, which can release the suction cup 43 from the rear crossbeam of the car seat. Finally, move the handle 45 to move the suction cup 43 away from the rear crossbeam of the car seat.

[0033] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tooling for inspecting the rear crossbeam assembly of an automobile seat, characterized in that, include: The workbench (1) and connecting rod (42) are provided. The workbench (1) is a hollow structure. Several support columns (5) are fixedly connected to the lower surface of the workbench (1). A door (2) is installed on one side of the workbench (1). A controller (6) is installed on one side of the workbench (1). The controller (6) is equipped with a power supply module and a central processing system. An adjustment structure (3) is provided on the upper surface of the workbench (1). The adjustment structure (3) includes two sliding holes (301). The sliding holes (301) are opened on the surface of the workbench (1). The sliding holes (301) are connected to the interior of the workbench (1). A slider (302) is slidably connected to the inner wall of the sliding holes (301). An adjusting plate (303) is fixedly connected to the upper surface of the slider (302). Several connecting holes (304) are opened on the upper surface of the adjusting plate (303). A top rod (305) is slidably passed through the inner wall of the connecting hole (304). The cross-section of the top rod (305) is "T" shaped. A spring (306) is sleeved on the arc surface of the top rod (305). The two ends of the spring (306) are fixedly connected to the top rod (305) and the adjusting plate (303) respectively. Several scales (308) are provided on the upper surface of the adjusting plate (303). A pointer (307) is fixedly connected to the arc surface of the connecting rod (42). The pointer (307) corresponds to the position of the scale (308).

2. The inspection fixture for the rear crossbeam assembly of an automobile seat according to claim 1, characterized in that, The two sliders (302) are threaded with lead screws (310) on their sides. The lead screws (310) have bidirectional threads on their arc surfaces. The lead screws (310) are rotatably connected to the inner wall of the worktable (1). A servo motor (311) is fixedly connected to one side of the outer wall of the worktable (1). The output end of the servo motor (311) is fixedly connected to the lead screws (310).

3. The inspection fixture for the rear crossbeam assembly of an automobile seat according to claim 1, characterized in that, A support plate (312) is fixedly connected to the upper surface of the adjusting plate (303). An electric cylinder (313) is fixedly connected to the upper surface of the support plate (312). A connecting plate (314) is fixedly connected to the output end of the electric cylinder (313). Several arc plates (315) are fixedly connected to the lower surface of the connecting plate (314). The arc plates (315) correspond to the positions of the top rod (305). Several guide rods (316) are slidably passed through the surface of the support plate (312). The lower end of the guide rods (316) is fixedly connected to the upper surface of the connecting plate (314).

4. The inspection fixture for the rear crossbeam assembly of an automobile seat according to claim 1, characterized in that, One end of the top rod (305) is fixedly connected to an anti-collision pad (309), which is a rubber pad.

5. The inspection fixture for the rear crossbeam assembly of an automobile seat according to claim 1, characterized in that, The upper surface of the workbench (1) is provided with an auxiliary structure (4), the auxiliary structure (4) includes a partition (41), the lower surface of the partition (41) is fixedly connected to the upper surface of the workbench (1), a connecting rod (42) is slidably passed through the side of the partition (41), a suction cup (43) is fixedly connected to one end of the connecting rod (42), a positioning rod (44) is slidably passed through the side of the partition (41), and one end of the positioning rod (44) is fixedly connected to the arc surface of the connecting rod (42).

6. A vehicle seat rear crossbeam assembly inspection fixture according to claim 5, characterized in that, The connecting rod (42) is a hollow structure. The connecting rod (42) is connected to the suction cup (43). An electric push rod (46) is fixedly connected to the outer wall of the connecting rod (42). An ear plate (47) is fixedly connected to the output end of the electric push rod (46). A piston (48) slides on the inner wall of the connecting rod (42). One side of the piston (48) is fixedly connected to one side of the long arm end of the ear plate (47).

7. A vehicle seat rear crossbeam assembly inspection fixture according to claim 5, characterized in that, The connecting rod (42) has a handle (45) fixedly connected to its arc surface, and the handle (45) has a "U" shaped cross section.

Citation Information

Patent Citations

  • Detection tool for automobile seat cross beam welding assembly

    CN223091174U