A clamping device for detecting a car seat cover fabric

Abstract

This utility model relates to the technical field of automotive interior testing equipment, specifically disclosing a clamping device for testing automotive seat cover fabric. The device includes a base, a support ring, and a compression ring. The support ring is suspended on the base and has a conical support platform, bolts for clamping the fabric in conjunction with the compression ring, and a gear structure. Below the compression ring is a compression arc surface adapted to the conical support platform. The compression ring is screwed to the bolt via an internal threaded cylinder. The bolt is driven to rotate synchronously by the gear and gear ring, causing the compression ring to move downwards evenly for clamping. The device also includes an angle limiting mechanism, which achieves adjustable angle and rapid locking through the cooperation of a positioning hole, positioning bolt, multi-faceted slide rod, moving disc, and control handle. This device clamps the fabric with uniform force, is easy to operate, and provides precise positioning. It is suitable for multi-angle performance testing, improving the accuracy and efficiency of fabric testing.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat cover manufacturing technology, specifically relating to a clamping device for inspecting automotive seat cover fabric. Background Technology

[0002] With the continuous advancement of automobile manufacturing processes and the increasing demands of consumers for automotive comfort and aesthetics, seat cover fabrics, as an important component of automotive interiors, directly impact the overall interior effect and user experience. To ensure the performance stability and lifespan of seat cover fabrics, it is typically necessary to test the fabrics for properties such as tensile strength, abrasion resistance, colorfastness, and tear resistance before mass production.

[0003] In existing technologies, fabric sample testing often relies on traditional manual clamping devices, with clamping methods typically involving single-point rotational compression or symmetrical clamping. This structure suffers from uneven clamping force, easily causing wrinkles or insufficient stretching in certain areas of the fabric during stress, thus affecting the accuracy of the test data. Furthermore, the angle adjustment structure of traditional devices is relatively rudimentary, making angle adjustment inconvenient and cumbersome while clamped, limiting testing conditions at different angles and reducing the flexibility and efficiency of the testing process.

[0004] Especially during the clamping process, existing clamps generally use manual tightening of multiple threaded parts to fix the extrusion plate. This operation is laborious and has the problem of inconsistent thread synchronization, which can easily lead to uneven force on the extrusion plate, resulting in inconsistent sample tension distribution and affecting the stability of the test. At the same time, some clamps lack a multi-directional adjustable angle structure or have an unreasonable adjustment mechanism design, which cannot achieve quick unlocking and locking. The angle adjustment process is complicated, affecting the efficiency and convenience of the test. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a clamping device for detecting automotive seat cover fabric. This fabric clamping device has a reasonable structure, uniform clamping, quick adjustment of the detection angle, and convenient operation, thereby solving the problems of uneven force, difficulty in adjustment, and large detection errors in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a clamping device for detecting automotive seat cover fabric, comprising a base and a support ring, wherein upright plates are symmetrically fixed on both sides of the upper surface of the base, the support ring is suspended between the two upright plates, and extension shafts are symmetrically arranged on both sides of the support ring, the extension shafts rotating through the upright plates;

[0007] The upper surface of the support ring is provided with a tapered support platform that is smaller at the top and larger at the bottom. Three bolts are evenly rotated and installed on the surface of the support ring, and gears are provided at the bottom of the bolts.

[0008] An extrusion ring is installed above the support ring, and an extrusion arc surface adapted to the conical support platform is provided below the inner ring surface of the extrusion ring. Three internal threaded cylinders are evenly opened on the surface of the extrusion ring.

[0009] An angle limiting mechanism is provided on the outer side of the upright plate.

[0010] Furthermore, the three bolts are placed around the conical support platform, the bolts are adapted to the internal threaded cylinder, the lower surface of the support ring is provided with a fixing convex ring, the surface of the fixing convex ring is rotatably mounted with a toothed ring, the toothed ring meshes with the three gears respectively, and the lower surface of the toothed ring is provided with a rotating handle.

[0011] Furthermore, one of the extended shafts is provided with a docking plate on its outer end face. The docking plate is placed on the outside of the upright plate, and positioning holes are uniformly formed on the outer surface of the docking plate with its rotation axis as the center.

[0012] Furthermore, the angle limiting mechanism includes a fixed cylinder fixed to the outside of the upright plate, the fixed cylinder is hollow inside, the docking plate is placed inside the fixed cylinder, and a multi-faceted through hole is opened at the center of the end face of the fixed cylinder.

[0013] Furthermore, a movable disc is slidably installed inside the fixed cylinder. Positioning bolts corresponding to positioning holes are evenly arranged on one side surface of the movable disc, and a multi-faceted slide rod is provided on the other side of the movable disc, the multi-faceted slide rod passing through the multi-faceted through hole.

[0014] Furthermore, a spring is fitted onto the surface of the multi-faceted slide bar, the spring being placed inside the fixed cylinder, and the spring applying a thrust to the moving disk in the direction of the support ring.

[0015] Furthermore, a boss is provided below the end face of the fixed cylinder, and a swing plate is rotatably mounted on the end of the boss. An extension bolt is provided at the end of the multi-faceted slide rod away from the moving disk. A limit plate is provided at the end of the extension bolt. A through groove is opened on the surface of the swing plate, and the extension bolt passes through the through groove.

[0016] Furthermore, the swing plate is positioned between the multi-faceted slide bar and the limiting plate, and a control handle is provided on the top of the swing plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This device provides multi-directional, circumferential force when clamping fabric samples by setting a tapered support platform with a smaller top and a larger bottom on the surface of the support ring and setting an extrusion arc surface inside the extrusion ring that matches its shape. This makes the tension distribution of the fabric more uniform throughout the entire compression process, avoiding problems such as wrinkles, slippage, and insufficient local stretching caused by point force or uneven compression in existing clamping structures. This effectively improves the balance of fabric force and the accuracy of test data.

[0019] This device achieves synchronous rotation of the three bolts by evenly setting three bolts on the support ring and cooperating with gears and gear ring structures. This further drives the extrusion ring to press down evenly, so that the entire extrusion process can stably and consistently press the extrusion arc surface against the conical support platform. This effectively solves the problems of asynchronous clamping and asymmetrical fabric force caused by manually tightening multiple clamping parts one by one in traditional clamps, and significantly improves clamping efficiency and overall fabric tension.

[0020] This device is equipped with a precise angle limiting mechanism. Through the combined action of the mating plate, positioning hole, moving plate, positioning bolt and spring reset structure, it can quickly position and lock the clamping structure after the fabric is clamped and fixed, so that the support ring remains at the target angle. This effectively avoids the problems of difficult angle adjustment, inaccurate positioning and cumbersome operation in the prior art, and improves the convenience and stability of the detection operation.

[0021] This device uses a control handle to drive the swing plate to rotate, which in turn moves the multi-faceted slide bar backward and controls the positioning bolt to exit the limiting hole. It can also quickly unlock the angle even in the clamping state, ensuring that the angle adjustment process does not require complicated disassembly. It solves the problem of inconvenient angle adjustment in the clamping state of the existing structure, improves the flexibility of the testing operation, and meets the technical requirements of conducting multiple sets of experiments on the fabric at different angles. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the support ring and the extrusion ring of this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the angle limiting mechanism of this utility model;

[0027] Figure 6This is a schematic diagram of the multi-faceted through-hole structure of this utility model.

[0028] The components represented by each number in the attached diagram are listed below: 1. Base; 11. Vertical plate; 2. Support ring; 21. Extension shaft; 22. Conical support platform; 23. Fixing convex ring; 24. Bolt; 25. Gear; 26. Gear ring; 261. Rotating handle; 27. Connecting plate; 271. Positioning hole; 3. Extrusion ring; 31. Internal threaded cylinder; 32. Extrusion arc surface; 4. Angle limiting mechanism; 41. Fixing cylinder; 42. Multi-faceted through hole; 43. Boss; 44. Moving plate; 441. Positioning bolt; 45. Multi-faceted slide rod; 451. Extension bolt; 452. Limiting plate; 46. Spring; 47. Swing plate; 471. Through groove; 472. Control handle. Detailed Implementation

[0029] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0030] refer to Figures 1-6 As shown, a clamping device for testing automotive seat cover fabric includes a base 1 and a support ring 2. Vertical plates 11 are symmetrically fixed on both sides of the upper surface of the base 1. The support ring 2 is suspended between the two vertical plates 11. Extension shafts 21 are symmetrically arranged on both sides of the support ring 2, and the extension shafts 21 rotatably pass through the vertical plates 11. A leveling structure is provided on the upper surface of the base 1 to enhance overall stability. The support ring 2 is used to support the fabric sample and cooperates with the compression ring 3 to achieve the clamping function. The vertical plates 11 provide a stable support frame for the entire clamping mechanism. The extension shafts 21 enable the rotatable installation of the support ring 2 on the base, providing a structural basis for subsequent angle adjustment.

[0031] The upper surface of the support ring 2 is provided with a conical support platform 22 that is smaller at the top and larger at the bottom. Three bolts 24 are evenly rotated and installed on the surface of the support ring 2, and gears 25 are provided at the bottom of the bolts 24. The conical support platform 22 is used to support the fabric to be tested and provide a tension support surface. It has a curved surface profile that matches the extrusion arc surface 32 below the extrusion ring 3, which can improve the uniformity of force on the fabric in multiple directions. The bolts 24 can rotate synchronously under the drive of the gears 25, ensuring the synchronous feeding of the three thread contact points during the extrusion process. This avoids the problem of uneven force caused by traditional manual tightening one by one, thereby improving the reliability of sample clamping and the consistency of test data.

[0032] A compression ring 3 is installed above the support ring 2. Below the inner ring surface of the compression ring 3, there is a compression arc surface 32 that matches the conical support platform 22. Three internal threaded cylinders 31 are evenly distributed on the surface of the compression ring 3. The compression arc surface 32 can be made of elastic rubber material to enhance the cushioning performance and fit when in contact with the fabric, and prevent the fabric from being indented or slipping during clamping. The three internal threaded cylinders 31 are respectively matched with three bolts 24 on the support ring 2 to realize the axial displacement of the compression ring 3 when rotating the bolts 24. By cooperating with the conical support platform 22, the fabric is effectively pressed and positioned. The compression ring 3 is circular in shape. The multi-point uniform force method ensures consistent clamping tension, effectively improving the accuracy and repeatability of the test results.

[0033] An angle limiting mechanism 4 is provided on the outer side of the upright plate 11. The angle limiting mechanism 4 works in conjunction with the extension shaft 21 of the support ring 2 to realize the rotation adjustment and angle locking of the clamping device at different times, so as to facilitate the change of the force direction of the sample according to the testing requirements, realize multi-angle testing, and meet the mechanical performance evaluation requirements of various automotive seat fabrics at different angles.

[0034] refer to Figure 1 and Figure 4 As shown, three bolts 24 are placed around the conical support platform 22. The bolts 24 are adapted to the internal threaded cylinder 31. A fixed convex ring 23 is provided on the lower surface of the support ring 2. A toothed ring 26 is rotatably mounted on the surface of the fixed convex ring 23. The toothed ring 26 meshes with three gears 25 respectively. A rotating handle 261 is provided on the lower surface of the toothed ring 26. By rotating the handle 261, the toothed ring 26 can be driven to rotate, thereby synchronously driving the three bolts 24 to rotate at the same time, so that the extrusion ring 3 is pressed down synchronously. This avoids the asynchronous problem caused by multiple individual tightening points in traditional clamping devices, and significantly improves clamping efficiency and sample tension uniformity. The fixed convex ring 23 is used to support the rotational installation of the toothed ring 26, making the overall transmission structure more stable and reliable.

[0035] refer to Figure 2 As shown, a docking plate 27 is provided on the outer end face of one of the extension shafts 21. The docking plate 27 is placed outside the vertical plate 11. Positioning holes 271 are evenly distributed on the outer surface of the docking plate 27 with its rotation axis as the center. The docking plate 27 is a key component of the angle adjustment and locking structure. It works in conjunction with the positioning bolt 441 in the angle limiting mechanism 4 to realize the precise limiting and quick unlocking functions of the support ring 2. The positioning holes 271 are evenly distributed along the circumferential direction, so that the support ring 2 can be adjusted at equal intervals according to the angle, which is convenient for realizing the multi-angle testing requirements.

[0036] refer to Figure 2 and Figure 5As shown, the angle limiting mechanism 4 includes a fixed cylinder 41 fixed to the outside of the upright plate 11. The fixed cylinder 41 is hollow inside, and the mating plate 27 is placed inside the fixed cylinder 41. A multi-faceted through hole 42 is opened at the center of the end face of the fixed cylinder 41. The fixed cylinder 41 is used to provide closed support for the entire limiting mechanism, and its inner cavity provides movement space for the movable plate 44 and the multi-faceted slide rod 45. The multi-faceted through hole 42 is used to match and install with the multi-faceted slide rod 45 to prevent the limiting mechanism from rotating when the angle is locked, thereby improving the angle positioning accuracy.

[0037] refer to Figure 2 and Figure 5 As shown, a movable disk 44 is slidably installed inside the fixed cylinder 41. One side surface of the movable disk 44 is evenly provided with positioning bolts 441 corresponding to the positioning holes 271. The other side of the movable disk 44 is provided with a multi-faceted slide rod 45, which passes through the multi-faceted through hole 42. Under the action of the spring 46, the movable disk 44 always tends to slide towards the docking disk 27, so that the positioning bolts 441 can be accurately inserted into the positioning holes 271 to achieve angle locking. The multi-faceted slide rod 45 plays a guiding and anti-rotation role, ensuring that the movable disk 44 is stable in posture and does not deviate during the sliding process, thereby improving the positioning stability and durability of the limiting mechanism.

[0038] refer to Figure 2 and Figure 5 As shown, a spring 46 is fitted on the surface of the multi-faceted slide bar 45. The spring 46 is placed inside the fixed cylinder 41. The spring 46 applies a pushing force to the moving disk 44 in the direction of the support ring 2. The spring 46 provides continuous elastic force for the limiting mechanism, ensuring that the moving disk 44 always maintains a tight fit with the docking disk 27 in the angle-locked state, preventing loosening or displacement, and improving the angle holding ability and stability of the whole machine during the detection process.

[0039] refer to Figure 5 and Figure 6 As shown, a boss 43 is provided below the end face of the fixed cylinder 41. A swing plate 47 is rotatably mounted on the end of the boss 43. An extension bolt 451 is provided at the end of the multi-faceted slide rod 45 away from the moving disk 44. A limit plate 452 is provided at the end of the extension bolt 451. A through groove 471 is opened on the surface of the swing plate 47, and the extension bolt 451 passes through the through groove 471. When the control handle 472 is pulled outward, the swing plate 47 rotates around the boss 43 as the rotation axis. The through groove 471 drives the extension bolt 451 and the limit plate 452 to move as a whole, thereby driving the multi-faceted slide rod 45 and the moving disk 44 to move backward, so that the positioning bolt 441 is disengaged from the positioning hole 271, releasing the angle limit state, and facilitating the angle adjustment of the support ring 2.

[0040] refer to Figure 5 and Figure 6As shown, the swing plate 47 is placed between the multi-faceted slide bar 45 and the limiting plate 452, and a control handle 472 is provided on the top of the swing plate 47. The control handle 472 is used to control the rotation of the swing plate 47, and through the linkage of the mechanism, the multi-faceted slide bar 45 and the positioning bolt 441 are moved back as a whole, realizing the release and relocking of the angle limit. This structure makes the angle adjustment process simpler and significantly improves the operation efficiency, meeting the needs of multi-angle detection scenarios of automotive seat cover fabric.

[0041] The working principle of this utility model is as follows: First, the support ring 2 is adjusted to a horizontal state and fixed by the angle limiting mechanism 4. Then, the extrusion ring 3 is separated from the support ring 2, and the fabric sample is laid flat on the upper surface of the conical support platform 22. Then, the extrusion ring 3 is installed so that the internal thread cylinder 31 and the bolt 24 correspond to each other. At this time, the toothed ring 26 is rotated by rotating the handle 261, so that the three bolts 24 are rotated by the meshing of the toothed ring 26 and the three gears 25. The bolts 24 are screwed into the internal thread cylinder 31 to drive the extrusion ring 3 to move down. At this time, the extrusion arc surface 32 and the conical support platform 22 will gradually extrude the fabric to clamp and fix the fabric. The extrusion arc surface 32 can be replaced by a rubber ring. This mechanism can ensure that the fabric is subjected to uniform force in multiple directions, thereby ensuring uniform tension and improving detection accuracy. At the same time, the three bolts 24 rotate synchronously, which can ensure the stability of the extrusion ring 3 when it moves down. Compared with the traditional manual rotation method, it can further improve the uniformity of the fabric force.

[0042] After the fabric is clamped and fixed, the angle needs to be adjusted according to different testing requirements. When there is no force, the spring 46 pushes the moving plate 44 closer to the docking plate 27. At the same time, the cooperation between the multi-faceted slide rod 45 and the multi-faceted through hole 42 prevents the moving plate 44 from rotating and allows it to slide. When the positioning bolt 441 enters the positioning hole 271, it can limit the support ring 2 and keep it at a fixed angle to improve the convenience of testing. Conversely, when it is necessary to adjust the testing angle, the control handle 472 can be pulled outward. Since the swing plate 47 is placed between the multi-faceted slide rod 45 and the limiting plate 452, and the extension bolt 451 passes through the through groove 471, the swing plate 47 can drive the multi-faceted slide rod 45 to move outward when it swings outward. At this time, the positioning bolt 441 disengages from the positioning hole 271, and the support ring 2 can rotate freely.

[0043] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A clamping device for detecting automotive seat cover fabric, comprising a base (1) and a support ring (2), characterized in that: The base (1) has upright plates (11) symmetrically fixed on both sides of its upper surface. The support ring (2) is suspended between the two upright plates (11). The support ring (2) has extension shafts (21) symmetrically arranged on both sides. The extension shafts (21) rotate through the upright plates (11). The upper surface of the support ring (2) is provided with a conical support platform (22) that is smaller at the top and larger at the bottom. Three bolts (24) are evenly rotated and installed on the surface of the support ring (2). A gear (25) is provided at the bottom of the bolts (24). An extrusion ring (3) is installed above the support ring (2). An extrusion arc surface (32) adapted to the conical support platform (22) is provided below the inner ring surface of the extrusion ring (3). Three internal threaded cylinders (31) are evenly opened on the surface of the extrusion ring (3). An angle limiting mechanism (4) is provided on the outer side of the upright plate (11).

2. The clamping device for detecting automotive seat cover fabric according to claim 1, characterized in that: The three bolts (24) are placed around the conical support platform (22). The bolts (24) are adapted to the internal threaded cylinder (31). A fixed convex ring (23) is provided on the lower surface of the support ring (2). A toothed ring (26) is rotatably installed on the surface of the fixed convex ring (23). The toothed ring (26) meshes with the three gears (25) respectively. A rotating handle (261) is provided on the lower surface of the toothed ring (26).

3. The clamping device for detecting automotive seat cover fabric according to claim 1, characterized in that: One of the extension shafts (21) has a docking plate (27) on its outer end face. The docking plate (27) is placed outside the upright plate (11). The outer surface of the docking plate (27) is uniformly provided with positioning holes (271) with its rotation axis as the center.

4. The clamping device for detecting automotive seat cover fabric according to claim 3, characterized in that: The angle limiting mechanism (4) includes a fixed cylinder (41) fixed on the outside of the upright plate (11). The fixed cylinder (41) is hollow inside. The docking plate (27) is placed inside the fixed cylinder (41). A multi-faceted through hole (42) is opened at the center of the end face of the fixed cylinder (41).

5. The clamping device for detecting automotive seat cover fabric according to claim 4, characterized in that: The fixed cylinder (41) has a movable disk (44) slidably installed inside. One side surface of the movable disk (44) is uniformly provided with positioning bolts (441) corresponding to the positioning holes (271). The other side of the movable disk (44) is provided with a multi-faceted slide rod (45), which passes through the multi-faceted through hole (42).

6. The clamping device for detecting automotive seat cover fabric according to claim 5, characterized in that: A spring (46) is fitted on the surface of the multi-faceted slide bar (45). The spring (46) is placed inside the fixed cylinder (41). The spring (46) applies a thrust to the moving disk (44) in the direction of the support ring (2).

7. The clamping device for detecting automotive seat cover fabric according to claim 6, characterized in that: A boss (43) is provided below the end face of the fixed cylinder (41). A swing plate (47) is rotatably installed at the end of the boss (43). An extension bolt (451) is provided at the end of the multi-faceted slide rod (45) away from the moving disk (44). A limit plate (452) is provided at the end of the extension bolt (451). A through groove (471) is opened on the surface of the swing plate (47). The extension bolt (451) passes through the through groove (471).

8. The clamping device for detecting automotive seat cover fabric according to claim 7, characterized in that: The swing plate (47) is placed between the multi-faceted slide bar (45) and the limiting plate (452), and a control handle (472) is provided on the top of the swing plate (47).

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