A device for testing the wear resistance of a paint surface of an automobile exterior part

Abstract

The utility model discloses an automobile exterior trim part paint surface abrasion resistance testing arrangement relates to paint surface abrasion resistance testing technical field. The utility model discloses a base, the base left side fixedly connected with support, the base top fixedly connected with two slide rails, be provided with mobile seat above the slide rail, still include: friction mechanism, the friction mechanism sets up above the mobile seat, the friction mechanism includes friction plate, the friction plate top position installation has the mounting panel, the mounting panel top rotatablely connected with screw rod. The utility model discloses setting up friction mechanism, specifically before detecting the exterior trim part, through clockwise rotating handle drive screw rod rotation, then the mounting panel will move downward, make the friction plate and exterior trim part contact, and through the continuous rotation can make the friction plate more closely exterior trim part to control the friction pressure when testing, and this mode can avoid the situation that the friction plate appears to jump, thereby improving the test effect.

Description

Technical Field

[0001] This utility model belongs to the field of paint abrasion resistance testing technology, and in particular relates to a device for testing the abrasion resistance of paint on automotive exterior parts. Background Technology

[0002] The automotive exterior paint abrasion resistance testing device is a specialized device used to simulate and evaluate the abrasion resistance performance of the surface coating of automotive exterior parts (such as body panels, bumpers, rearview mirrors, etc.) under external forces such as friction, scratching, and impact.

[0003] Traditional automotive exterior paint abrasion resistance testing devices typically fix the exterior part on a moving base, then place a friction plate into contact with the exterior part. The moving base drives the exterior part to reciprocate, thereby testing the paint surface. However, the friction plate usually uses spring elasticity to contact the exterior part, which makes it difficult for the friction plate to effectively rub the exterior part during the test. The friction plate will bounce due to the elasticity, thus reducing the test effect of the paint surface. Furthermore, the elastic setting makes it difficult to adjust the friction pressure. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the abrasion resistance of automotive exterior paint. Specifically, before testing the exterior paint, a clockwise rotation of the handle drives a threaded rod, causing the mounting plate to move downwards and contact the exterior paint. Continuous rotation ensures the friction plate adheres more tightly to the exterior paint, thus controlling the friction pressure during testing. This method also prevents the friction plate from bouncing, improving the testing results. It solves the problem that the friction plate typically uses spring elasticity to contact the exterior paint, leading to insufficient friction and bouncing due to elasticity, thus reducing the effectiveness of the paint test.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a device for testing the abrasion resistance of paint surfaces on automotive exterior parts, comprising a base, a bracket fixedly connected to the left side of the base, two slide rails fixedly connected to the top of the base, a movable seat disposed above the slide rails, and further comprising:

[0007] A friction mechanism is disposed above a movable seat. The friction mechanism includes a friction plate, a mounting plate is positioned on the top of the friction plate, a threaded rod is rotatably connected to the top of the mounting plate, a handle is fixedly connected to the top of the threaded rod, and the threaded rod passes through a bracket and is threadedly connected to the bracket.

[0008] A clamping mechanism, wherein two sets of clamping mechanisms are disposed on the top of the movable base, and the clamping mechanism is used to fix the external trim pieces; and

[0009] A drive mechanism is disposed inside the base and is used to drive the movable seat to reciprocate left and right.

[0010] The friction plate has a toothed bottom, the threaded rod extends through the mounting plate and into the interior, and the threaded rod has a raised bottom to restrict the threaded rod on the mounting plate.

[0011] Furthermore, four positioning blocks are fixedly connected to the top of the friction plate, and two threaded shafts are fixedly connected to the center of the top of the friction plate. Both the positioning blocks and the threaded shafts are inserted into the mounting plate. Locking nuts are installed on the threaded shafts to connect and fix the friction plate and the mounting plate. A limit rod is fixedly connected to the top of the mounting plate. The limit rod slides through the bracket and extends to the outside. The friction plate is inserted into the mounting plate through the positioning blocks, and the threaded shaft is inserted into the mounting plate. Locking nuts are installed on the threaded shafts to lock and fix the friction plate.

[0012] The positioning block is used to position the friction plate during installation.

[0013] Furthermore, the clamping mechanism includes a U-shaped frame fixedly connected to the top of the movable seat, an arc-shaped clamping rod provided on the inner side of the U-shaped frame, a threaded knob threadedly connected to the center of the U-shaped frame, rubber pads fixedly connected to both ends of the bottom of the arc-shaped clamping rod, and stabilizing rods fixedly connected to both ends of the outer side of the rubber pads, with springs sleeved on the outer side of the stabilizing rods; the rubber pads are used to protect the outer trim parts and prevent damage to them;

[0014] The top of the arc-shaped clamping rod contacts the bottom of the threaded knob, and the stabilizing rod is used to limit the arc-shaped clamping rod.

[0015] Furthermore, the stabilizer bar slides through the U-shaped frame and extends to the outside. The stabilizer bar is slidably connected to the U-shaped frame. The top of the spring is fixedly connected to the inner side of the U-shaped frame, and the bottom of the spring is fixedly connected to the surface of the arc-shaped clamp. The stabilizer bar slides on the U-shaped frame to limit the movement of the arc-shaped clamp, so that the arc-shaped clamp moves in a straight line.

[0016] Furthermore, sliders are fixedly connected to the four corners of the bottom of the movable seat, and the sliders are slidably connected to the slide rail. A connecting block is fixedly connected to the center of the movable seat, and a straight groove is opened at the bottom of the connecting block.

[0017] The slider slides on the slide rail to support the movable seat, and the connecting block is T-shaped.

[0018] Furthermore, the driving mechanism includes a support plate fixedly connected to the inner wall of the base. A motor is fixedly connected to the bottom of the support plate. A turntable is fixedly connected to the output end of the motor via a flange. A convex shaft is fixedly connected to the top of the turntable. The convex shaft is slidably connected inside a straight groove. A gap is left between the bottom of the straight groove and the top of the turntable. The turntable will drive the convex shaft to slide inside the straight groove, thus enabling the connecting block to reciprocate, and the moving seat will reciprocate along with it.

[0019] This utility model has the following beneficial effects:

[0020] This invention incorporates a friction mechanism. Specifically, before testing the exterior trim, the handle is turned clockwise to rotate the threaded rod, causing the mounting plate to move downwards and contact the friction plate with the exterior trim. Continuous rotation ensures the friction plate adheres more tightly to the exterior trim, thereby controlling the friction pressure during testing. This method also prevents the friction plate from jumping, thus improving the testing results.

[0021] This utility model incorporates a clamping mechanism. Specifically, when fixing the exterior trim, the curved clamping rod is pushed downward by rotating the threaded knob clockwise. After the rubber pad contacts the exterior trim, it clamps and fixes the exterior trim. The rubber pad protects the exterior trim, preventing deformation and damage, thereby reducing testing costs.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the mounting plate of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the arc-shaped clamping rod of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the base of this utility model;

[0028] Figure 5 This is a schematic diagram of the bottom structure of the movable base of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Base; 11. Bracket; 12. Slide rail; 13. Moving seat; 131. Slider; 132. Connecting block; 133. Straight groove; 2. Friction mechanism; 21. Friction plate; 211. Positioning block; 212. Threaded shaft; 22. Mounting plate; 23. Threaded rod; 231. Handle; 24. Limiting rod; 3. Clamping mechanism; 31. U-shaped frame; 32. Arc-shaped clamping rod; 321. Rubber pad; 322. Stabilizing rod; 323. Spring; 33. Threaded knob; 4. Drive mechanism; 41. Support plate; 42. Motor; 43. Turntable; 44. Protruding shaft. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] Please see Figures 1-5 As shown, this utility model is a device for testing the abrasion resistance of automotive exterior paint, including a base 1, a bracket 11 fixedly connected to the left side of the base 1, two slide rails 12 fixedly connected to the top of the base 1, a movable seat 13 provided above the slide rails 12, and further including:

[0033] Friction mechanism 2 is located above the movable seat 13. Friction mechanism 2 includes a friction plate 21, a mounting plate 22 is positioned on the top of the friction plate 21, a threaded rod 23 is rotatably connected to the top of the mounting plate 22, and a handle 231 is fixedly connected to the top of the threaded rod 23. The threaded rod 23 passes through the bracket 11 and is threadedly connected to the bracket 11. Before testing the exterior trim, the threaded rod 23 is rotated clockwise by rotating the handle 231, which causes the mounting plate 22 to move downward, making the friction plate 21 contact the exterior trim. Continuous rotation allows the friction plate 21 to fit more tightly against the exterior trim, thereby controlling the friction pressure during testing. This method also prevents the friction plate 21 from jumping, thus improving the testing effect.

[0034] Clamping mechanism 3 is located on the top of the movable base 13, and two sets of clamping mechanism 3 are provided. Clamping mechanism 3 is used to fix external decorative parts; and

[0035] The drive mechanism 4 is located inside the base 1 and is used to drive the moving seat 13 to reciprocate left and right. The bottom of the friction plate 21 is provided with protruding teeth. The bottom of the threaded rod 23 passes through the mounting plate 22 and extends into the interior. The bottom of the threaded rod 23 is provided with a protrusion, which is used to restrict the threaded rod 23 on the mounting plate 22.

[0036] Four positioning blocks 211 are fixedly connected to the top of the friction plate 21, and two threaded shafts 212 are fixedly connected to the center of the top of the friction plate 21. The positioning blocks 211 and the threaded shafts 212 are inserted into the mounting plate 22. Locking nuts are installed on the threaded shafts 212 to connect and fix the friction plate 21 and the mounting plate 22. A limit rod 24 is fixedly connected to the top of the mounting plate 22. The limit rod 24 slides through the bracket 11 and extends to the outside. The positioning blocks 211 are used to position the friction plate 21 during installation.

[0037] The clamping mechanism 3 includes a U-shaped frame 31 fixedly connected to the top of the movable base 13. An arc-shaped clamping rod 32 is provided on the inner side of the U-shaped frame 31. A threaded knob 33 is threadedly connected to the center of the U-shaped frame 31. Rubber pads 321 are fixedly connected to both ends of the bottom of the arc-shaped clamping rod 32. Stabilizing rods 322 are fixedly connected to both ends of the outer side of the rubber pads 321. A spring 323 is sleeved on the outer side of the stabilizing rods 322. When fixing the exterior trim, the arc-shaped clamping rod 32 is pushed downward by rotating the threaded knob 33 clockwise. After the rubber pads 321 come into contact with the exterior trim, they will clamp and fix the exterior trim. The rubber pads 321 are used to protect the exterior trim and prevent it from being deformed or damaged, thereby reducing testing costs. At the same time, the arc shape of the arc-shaped clamping rod 32 can clamp both square and arc-shaped exterior trim. The top of the arc-shaped clamping rod 32 contacts the bottom of the threaded knob 33, and the stabilizing rod 322 is used to limit the arc-shaped clamping rod 32.

[0038] The stabilizer bar 322 slides through the U-shaped frame 31 and extends to the outside. The stabilizer bar 322 is slidably connected to the U-shaped frame 31. The top of the spring 323 is fixedly connected to the inner side of the U-shaped frame 31, and the bottom of the spring 323 is fixedly connected to the surface of the arc-shaped clamp 32.

[0039] The four corners of the bottom of the movable seat 13 are fixedly connected to sliders 131, which are slidably connected to the slide rail 12. A connecting block 132 is fixedly connected to the center of the movable seat 13, and a straight groove 133 is opened at the bottom of the connecting block 132. The sliders 131 slide on the slide rail 12 to support the movable seat 13, and the connecting block 132 is T-shaped.

[0040] The drive mechanism 4 includes a support plate 41 fixedly connected to the inner wall of the base 1. A motor 42 is fixedly connected to the bottom of the support plate 41. A turntable 43 is fixedly connected to the output end of the motor 42 through a flange. A convex shaft 44 is fixedly connected to the top of the turntable 43. The convex shaft 44 is slidably connected inside the straight groove 133. A gap is left between the bottom of the straight groove 133 and the top of the turntable 43.

[0041] One specific application of this embodiment is:

[0042] In use, place the exterior trim piece on the movable base 13, then turn the threaded knob 33 clockwise. The threaded knob 33 will push the arc-shaped clamping rod 32 downwards. At this time, the stabilizing rod 322 will move along with it, and the spring 323 will be stretched. When the rubber pad 321 on the arc-shaped clamping rod 32 contacts the exterior trim piece, it will clamp and fix the exterior trim piece. The rubber pad 321 is used to protect the exterior trim piece and prevent damage. After the exterior trim piece is fixed, turn the handle 231 clockwise to drive the threaded rod 23 to rotate. The mounting plate 22 will move downwards, and the limiting rod 24 will slide on the bracket 11, making... Mounting plate 22 moves in a straight line, and friction plate 21 will contact the surface of the exterior trim at any time. By continuously rotating threaded knob 33, friction plate 21 can be made to fit the exterior trim more tightly, thereby controlling the friction pressure during the test. Then, motor 42 is started to drive turntable 43 to rotate, and turntable 43 will drive cam shaft 44 to rotate together. Since cam shaft 44 slides in straight groove 133, connecting block 132 can reciprocate, and moving seat 13 reciprocates along with it. Slider 131 slides on slide rail 12. At this time, the exterior trim moves back and forth on friction plate 21 to rub, and friction test can be performed on the paint surface.

[0043] After the test is completed, stop the motor 42, then stop the movement of the moving seat 13. Then turn the handle 231 counterclockwise to drive the threaded rod 23 to move, so that the friction plate 21 moves upward and resets. Then turn the threaded knob 33 counterclockwise to move it away from the arc-shaped clamp 32. The arc-shaped clamp 32 will then reset upward by the elastic force of the spring 323, releasing the fixation of the outer trim and allowing it to be removed. The friction plate 21 is inserted into the mounting plate 22 through the positioning block 211, and the threaded shaft 212 is inserted into the mounting plate 22. A locking nut is installed on the threaded shaft 212 to lock and fix the friction plate 21. By removing the locking nut on the threaded shaft 212, the friction plate 21 can be pulled out, thus quickly replacing the friction plate 21. This method facilitates the replacement of different friction plates 21 for different friction tests.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the abrasion resistance of paint on automotive exterior parts, comprising a base (1), a bracket (11) fixedly connected to the left side of the base (1), two slide rails (12) fixedly connected to the top of the base (1), and a movable seat (13) disposed above the slide rails (12), characterized in that, Also includes: Friction mechanism (2), the friction mechanism (2) is set above the movable seat (13), the friction mechanism (2) includes a friction plate (21), the top of the friction plate (21) is positioned and installed with an mounting plate (22), the top of the mounting plate (22) is rotatably connected with a threaded rod (23), the top of the threaded rod (23) is fixedly connected with a handle (231), the threaded rod (23) passes through the bracket (11) and is threadedly connected to the bracket (11); A clamping mechanism (3) is provided on the top of the movable base (13), and two sets of clamping mechanisms (3) are provided. The clamping mechanism (3) is used to fix the external decorative parts; and The drive mechanism (4) is located inside the base (1) and is used to drive the moving seat (13) to reciprocate left and right. The friction plate (21) has a toothed bottom, the threaded rod (23) extends through the mounting plate (22) and into the interior, and the threaded rod (23) has a raised bottom, which is used to restrict the threaded rod (23) on the mounting plate (22).

2. The device for testing the abrasion resistance of automotive exterior paint as described in claim 1, characterized in that, Four positioning blocks (211) are fixedly connected to the top of the friction plate (21), and two threaded shafts (212) are fixedly connected to the center of the top of the friction plate (21). The positioning blocks (211) and the threaded shafts (212) are both inserted into the mounting plate (22). Locking nuts are installed on the threaded shafts (212) to connect and fix the friction plate (21) and the mounting plate (22). A limiting rod (24) is fixedly connected to the top of the mounting plate (22). The limiting rod (24) slides through the bracket (11) and extends to the outside. The positioning block (211) is used to position the friction plate (21) during installation.

3. The device for testing the abrasion resistance of automotive exterior paint as described in claim 2, characterized in that, The clamping mechanism (3) includes a U-shaped frame (31) fixedly connected to the top of the movable seat (13). An arc-shaped clamping rod (32) is provided on the inner side of the U-shaped frame (31). A threaded knob (33) is threadedly connected to the center of the U-shaped frame (31). Rubber pads (321) are fixedly connected to both ends of the bottom of the arc-shaped clamping rod (32). Stabilizing rods (322) are fixedly connected to both ends of the outer side of the rubber pads (321). A spring (323) is sleeved on the outer side of the stabilizing rods (322). The top of the arc-shaped clamp (32) contacts the bottom of the threaded knob (33), and the stabilizing rod (322) is used to limit the arc-shaped clamp (32).

4. The device for testing the abrasion resistance of automotive exterior paint as described in claim 3, characterized in that, The stabilizer bar (322) slides through the U-shaped frame (31) and extends to the outside. The stabilizer bar (322) is slidably connected to the U-shaped frame (31). The top of the spring (323) is fixedly connected to the inner side of the U-shaped frame (31). The bottom of the spring (323) is fixedly connected to the surface of the arc-shaped clamp (32).

5. The device for testing the abrasion resistance of automotive exterior paint as described in claim 3, characterized in that, The movable seat (13) has a slider (131) fixedly connected to each of the four corners at the bottom. The slider (131) is slidably connected to the slide rail (12). A connecting block (132) is fixedly connected to the center of the movable seat (13). A straight groove (133) is opened at the bottom of the connecting block (132). The slider (131) slides on the slide rail (12) to support the moving seat (13), and the connecting block (132) is T-shaped.

6. The device for testing the abrasion resistance of automotive exterior paint as described in claim 2, characterized in that, The drive mechanism (4) includes a support plate (41) fixedly connected to the inner wall of the base (1), a motor (42) fixedly connected to the bottom of the support plate (41), a turntable (43) fixedly connected to the output end of the motor (42) through a flange, and a convex shaft (44) fixedly connected to the top of the turntable (43).

7. The device for testing the abrasion resistance of automotive exterior paint as described in claim 6, characterized in that, The convex shaft (44) is slidably connected inside the straight groove (133), and there is a gap between the bottom of the straight groove (133) and the top of the turntable (43).

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