Strength testing device for plastic part of automobile shell

Abstract

The utility model discloses an automobile shell plastic part strength testing device, and relates to the technical field of automobile shell production. The pressure resistance tester comprises a workbench, the top end of the workbench is fixedly connected with a support, the top end and the upper inner wall of the support are jointly provided with an adjusting mechanism, the bottom end of the adjusting mechanism is fixedly connected with a pressure resistance tester body, and the top end of the workbench is fixedly connected with a test board used in cooperation with the pressure resistance tester body. According to the automobile shell testing device, through the arrangement of the fixing mechanism structure, the automobile shell needing to be tested can be well fixed, loosening and deviation of the automobile shell during testing are avoided, and the accuracy of the testing result of the testing device is improved; the test position of the compression resistance tester body on the test device can be freely adjusted, so that the compression resistance test can be conveniently performed on different positions on the automobile shell, and the use convenience of the test device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shell production, in particular to a strength testing device for plastic parts of automobile shells. Background Technique

[0002] Automobile plastic parts are one of the common parts in automobile manufacturing, and have the advantages of light weight, corrosion resistance, low cost, etc. In order to ensure the safety, reliability and durability of automobiles, it is necessary to conduct strict tests on automobile plastic parts. The following are some common test standards for automobile plastic parts. Physical property tests mainly include the determination of indicators such as strength, hardness, toughness, and shrinkage rate. Strength tests include tensile strength, compressive strength, bending strength, etc. These indicators can evaluate the mechanical strength and load-bearing capacity of plastic parts.

[0003] Firstly, when testing the compressive strength of the automobile shell, the automobile shell is prone to looseness and deviation, resulting in inaccurate test results. Without a fixing mechanism, it is not convenient to fix the tested automobile shell. Secondly, when testing the strength of the automobile shell, it is necessary to test different positions on the automobile shell. When testing different positions on the automobile shell currently, it is still necessary to move the position of the automobile shell, and the operation is time-consuming. Without an adjustment mechanism, it is not convenient to freely adjust the detection position of the detector in the detection device, reducing the convenience of using the testing device. Content of the Utility Model

[0004] In order to solve the problems that the testing device is not convenient to fix the tested automobile shell and not convenient to freely adjust the detection position of the detector in the detection device; the purpose of the utility model is to provide a strength testing device for plastic parts of automobile shells.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions: a strength testing device for plastic parts of an automobile shell, including a workbench, a bracket is fixedly connected to the top end of the workbench, an adjusting mechanism is jointly arranged at the top end and the upper inner wall of the bracket, the bottom end of the adjusting mechanism is fixedly connected with a compression tester body, a test bench used in cooperation with the compression tester body is fixedly connected to the top end of the workbench, a fixing mechanism is jointly arranged at the upper inner wall of the test bench and both ends of the workbench, the fixing mechanism includes a support plate, a first motor is fixedly connected to the lower inner wall of the support plate, and the output end of the first motor is fixedly connected with a worm, the outer surface of the worm is meshed with a worm gear, and the middle of the top end of the worm gear is fixedly connected with a vertical rod, the top end of the vertical rod penetrates through the bottom end of the workbench and is rotatably connected to the lower inner wall of the test bench, a movable plate is fixedly sleeved on the outer surface of the vertical rod, both sides of the top end of the movable plate are hinged with connecting rods through rotating shafts, a long groove is fixedly connected to the top end of the workbench, two sliders are slidably connected to the lower inner wall of the long groove, and one side of the bottom ends of the two connecting rods is respectively hinged with one side of the top ends of the two sliders through rotating shafts, one side of the top ends of the two sliders is fixedly connected with vertical plates, and the upper parts of the opposite ends of the two vertical plates are fixedly connected with round rods, and the opposite ends of the two round rods are fixedly connected with fixing plates.

[0006] Preferably, the adjusting mechanism includes two short rods, the top ends of the two short rods are rotatably connected to the upper inner wall of the bracket, a support seat is fixedly connected to one side of the top end of the bracket, and a second motor is fixedly connected to the top end of the support seat, the output end of the second motor sequentially penetrates through the support seat and the top end of the bracket and is fixedly connected with the top end of one of the short rods, the bottom ends of the two short rods are both fixedly connected with sprockets, and a chain is jointly sleeved on the outer surfaces of the two sprockets, a connecting block is fixedly sleeved on the outer surface of the chain, and a slide rail is fixedly connected to the bottom end of the connecting block, a cross plate is fixedly connected to the lower part of one end of the slide rail, a multi-stage cylinder is fixedly connected to the top end of the cross plate, and the output end of the multi-stage cylinder is fixedly connected with a moving block, the bottom end of the moving block is fixedly connected with a telescopic rod, and the bottom end of the telescopic rod is fixedly connected with the top end of the compression tester body.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] 1. Through the setting of the structure of the fixing mechanism in this application, it can play a role in facilitating the better fixing of the automobile shell to be tested, avoiding the loosening and offset of the automobile shell during the test, so as to improve the accuracy of the test results of the test device;

[0009] 2. Through the setting of the adjusting mechanism in this application, it can play a role in facilitating the free adjustment of the test position of the compression tester body on the test device, so as to perform compression strength tests on different positions of the automobile shell and improve the convenience of using the test device. Brief Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic structural diagram of the fixing mechanism of the present invention.

[0013] Figure 3 It is a partial structural schematic diagram of another perspective of the fixing mechanism of the present invention.

[0014] Figure 4 It is a schematic structural diagram of the adjusting mechanism of the present invention.

[0015] Figure 5 It is a schematic structural diagram of another perspective of the adjusting mechanism of the present invention.

[0016] In the figure: 1, workbench; 2, fixing mechanism; 21, long groove; 22, connecting rod; 23, clamping block; 24, clamping groove; 25, sliding block; 26, vertical plate; 27, round rod; 28, movable plate; 29, fixing plate; 201, vertical rod; 202, worm gear; 203, support plate; 204, first motor; 205, worm; 3, adjusting mechanism; 31, short rod; 32, chain; 33, slide rail; 34, telescopic rod; 35, moving block; 36, connecting block; 37, support seat; 38, cylinder; 39, cross plate; 301, sprocket; 302, limiting groove; 303, positioning plate; 304, second motor; 4, test bench; 5, bracket; 6, anti-pressure tester body. Detailed Embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] Embodiment: As Figures 1-5As shown in the figure, the utility model provides a strength testing device for plastic parts of an automobile shell, including a workbench 1. A bracket 5 is fixedly connected to the top end of the workbench 1. An adjusting mechanism 3 is jointly arranged at the top end and the upper inner wall of the bracket 5. A compression tester body 6 is fixedly connected to the bottom end of the adjusting mechanism 3. A test bench 4 used in cooperation with the compression tester body 6 is fixedly connected to the top end of the workbench 1. A fixing mechanism 2 is jointly arranged at the upper inner wall of the test bench 4 and both ends of the workbench 1. The fixing mechanism 2 includes a support plate 203. A first motor 204 is fixedly connected to the lower inner wall of the support plate 203. The output end of the first motor 204 is fixedly connected with a worm 205. The outer surface of the worm 205 is meshed with a worm gear 202. The middle part of the top end of the worm gear 202 is fixedly connected with a vertical rod 201. The top end of the vertical rod 201 penetrates through the bottom end of the workbench 1 and is rotatably connected to the lower inner wall of the test bench 4. The outer surface of the vertical rod 201 is fixedly sleeved with a movable plate 28. Both sides of the top end of the movable plate 28 are hinged with connecting rods 22 through rotating shafts. A long groove 21 is fixedly connected to the top end of the workbench 1. Two sliders 25 are slidably connected to the lower inner wall of the long groove 21. One side of the bottom ends of the two connecting rods 22 is respectively hinged with one side of the top ends of the two sliders 25 through rotating shafts. One side of the top ends of the two sliders 25 is fixedly connected with vertical plates 26. The upper parts of the opposite ends of the two vertical plates 26 are fixedly connected with round rods 27. The opposite ends of the two round rods 27 are fixedly connected with fixing plates 29. Place the automobile shell to be tested on the test bench 4, and then start the first motor 204. The output end of the first motor 204 drives the worm 205 to drive. The worm 205 drives the worm gear 202 to rotate. The worm gear 202 rotates to drive the vertical rod 201 to rotate. The vertical rod 201 rotates to drive the movable plate 28 to rotate by a certain angle. The movable plate 28 rotates by a certain angle and is used in cooperation with the two connecting rods 22, so that the two sliders 25 connected by the connecting rods 22 move towards the opposite sides in the long groove 21. The movement of the two sliders 25 drives the fixing plates 29 connected by the two round rods 27 to move towards the opposite sides through the vertical plates 26 to fix the automobile shell, so as to prevent the automobile shell from moving during the test.

[0019] The adjusting mechanism 3 includes two short rods 31. The tops of the two short rods 31 are both rotatably connected to the upper inner wall of the bracket 5. One side of the top of the bracket 5 is fixedly connected with a support seat 37, and the top of the support seat 37 is fixedly connected with a second motor 304. The output end of the second motor 304 sequentially penetrates through the support seat 37 and the top of the bracket 5 and is fixedly connected to the top of one of the short rods 31. The bottoms of the two short rods 31 are both fixedly connected with sprockets 301, and a chain 32 is jointly sleeved on the outer surfaces of the two sprockets 301. A connecting block 36 is fixedly sleeved on the outer surface of the chain 32, and a slide rail 33 is fixedly connected to the bottom of the connecting block 36. The lower part of one end of the slide rail 33 is fixedly connected with a cross plate 39. A multi-stage cylinder 38 is fixedly connected to the top of the cross plate 39, and the output end of the multi-stage cylinder 38 is fixedly connected with a moving block 35. The bottom of the moving block 35 is fixedly connected with a telescopic rod 34, and the bottom of the telescopic rod 34 is fixedly connected to the top of the compressive tester body 6. Start the second motor 304. The output end of the second motor 304 drives one of the short rods 31 to rotate. One of the short rods 31 rotates to drive one of the sprockets 301 to rotate. One of the sprockets 301 rotates in cooperation with the chain 32 and the other sprocket 301 to make the chain 32 drive. The chain 32 drives the slide rail 33 to move through the connecting block 36, so that the horizontal position of the compressive tester body 6 is adjusted to a suitable position. Then start the multi-stage cylinder 38. The output end of the multi-stage cylinder 38 drives the moving block 35 to move to a suitable longitudinal position in the slide rail 33. The moving block 35 moves to drive the longitudinal position of the compressive tester body 6 to be adjusted through the telescopic rod 34, so that the test position of the compressive tester body 6 can be freely adjusted, so as to perform compressive strength tests on different positions on the car shell.

[0020] The bottoms of the two fixing plates 29 are flush with the top of the test bench 4, which is convenient for the fixing plates 29 to fix the car shell on the test bench 4.

[0021] Both ends of the two sliders 25 are fixedly connected with clamping blocks 23, and clamping grooves 24 for cooperating with the four clamping blocks 23 are opened at both ends of the long groove 21. The outer surface of the corresponding clamping block 23 is slidably connected to the inner wall of the clamping groove 24. The clamping groove 24 cooperating with the clamping block 23 plays a role in positioning the slider 25 when it moves in the long groove 21, preventing the slider 25 from moving out of the long groove 21.

[0022] The threads on the outer surfaces of the worm gear 202 and the worm 205 are matched, which is convenient for the worm gear 202 and the worm 205 to cooperate with each other.

[0023] A limiting groove 302 for the connecting block 36 is provided at the top end of the bracket 5, and the top end of the connecting block 36 penetrates through the limiting groove 302 and is fixedly connected with a positioning plate 303. The bottom end of the positioning plate 303 is slidably connected to the top end of the bracket 5. The positioning plate 303 serves to facilitate the positioning of the connecting block 36 during movement, and the limiting groove 302 serves to facilitate the limiting of the connecting block 36 during movement.

[0024] Both ends of the moving block 35 are slidably connected to the inner walls on both sides of the slide rail 33, which facilitates the movement of the moving block 35 within the slide rail 33.

[0025] The bracket 5 is in an inverted "U" shape, which facilitates the support of the bracket 5 for the adjusting mechanism 3.

[0026] Working principle: First, place the automobile shell to be tested on the test bench 4, and then through the fixing mechanism 2, start the first motor 204. The output end of the first motor 204 drives the worm 205 to transmit power. The worm 205 drives the worm wheel 202 to rotate. The worm wheel 202 rotates to drive the vertical rod 201 to rotate. The vertical rod 201 rotates to drive the movable plate 28 to rotate by a certain angle. The rotation of the movable plate 28 by a certain angle cooperates with the two connecting rods 22, so that the two sliders 25 connected by the connecting rods 22 move towards the opposite sides in the long groove 21. At the same time, the card slot 24 cooperates with the card block 23 to serve as a positioning function for the sliders 25 during movement in the long groove 21, preventing the sliders 25 from moving out of the long groove 21 when moving. The movement of the two sliders 25 drives the fixing plate 29 connected by the two round rods 27 to move towards the opposite sides through the vertical plate 26 to fix the automobile shell.

[0027] Then, through the adjusting mechanism 3, start the second motor 304. The output end of the second motor 304 drives one of the short rods 31 to rotate. One of the short rods 31 rotates to drive one of the sprockets 301 to rotate. One of the sprockets 301 rotates in cooperation with the chain 32 and the other sprocket 301 to make the chain 32 transmit power. The chain 32 transmits power to drive the connecting block 36 to move. At the same time, the positioning plate 303 serves to facilitate the positioning of the connecting block 36 during movement, and the limiting groove 302 serves to facilitate the limiting of the connecting block 36 during movement. The chain 32 transmits power to drive the slide rail 33 to move through the connecting block 36, so that the horizontal position of the compression tester body 6 is adjusted to a suitable position. Then start the double-acting cylinder 38. The output end of the double-acting cylinder 38 drives the moving block 35 to move to a suitable longitudinal position within the slide rail 33. The movement of the moving block 35 drives the longitudinal position adjustment of the compression tester body 6 through the telescopic rod 34.

[0028] Then, the compression tester body 6 can be used to perform a compression test on the automobile shell on the test bench 4.

[0029] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. An automobile exterior plastic part strength testing device, comprising a workbench (1), characterized in that: A bracket (5) is fixedly connected to the top end of the workbench (1). An adjusting mechanism (3) is jointly arranged at the top end and the upper inner wall of the bracket (5). The bottom end of the adjusting mechanism (3) is fixedly connected to the compression tester body (6). A test bench (4) used in cooperation with the compression tester body (6) is fixedly connected to the top end of the workbench (1). A fixing mechanism (2) is jointly arranged at the upper inner wall of the test bench (4) and both ends of the workbench (1); The fixing mechanism (2) includes a support plate (203). A first motor (204) is fixedly connected to the lower inner wall of the support plate (203). The output end of the first motor (204) is fixedly connected to a worm (205). A worm gear (202) is meshed with the outer surface of the worm (205). A vertical rod (201) is fixedly connected to the middle of the top end of the worm gear (202). The top end of the vertical rod (201) penetrates through the bottom end of the workbench (1) and is rotatably connected to the lower inner wall of the test bench (4). A movable plate (28) is fixedly sleeved on the outer surface of the vertical rod (201). Both sides of the top end of the movable plate (28) are hinged with connecting rods (22) through rotating shafts. A long groove (21) is fixedly connected to the top end of the workbench (1). Two sliders (25) are slidably connected to the lower inner wall of the long groove (21). One side of the bottom ends of the two connecting rods (22) is respectively hinged to one side of the top ends of the two sliders (25). A vertical plate (26) is fixedly connected to one side of the top ends of the two sliders (25). A round rod (27) is fixedly connected to the upper part of one end of the opposite surfaces of the two vertical plates (26). A fixing plate (29) is fixedly connected to one end of the opposite surfaces of the two round rods (27).

2. The strength testing device for plastic parts of an automobile shell according to claim 1, characterized in that: The adjusting mechanism (3) includes two short rods (31). The top ends of the two short rods (31) are rotatably connected to the upper inner wall of the bracket (5). A support seat (37) is fixedly connected to one side of the top end of the bracket (5). A second motor (304) is fixedly connected to the top end of the support seat (37). The output end of the second motor (304) sequentially penetrates through the support seat (37) and the top end of the bracket (5) and is fixedly connected to the top end of one of the short rods (31). Chain wheels (301) are fixedly connected to the bottom ends of the two short rods (31). A chain (32) is jointly sleeved on the outer surfaces of the two chain wheels (301). A connecting block (36) is fixedly sleeved on the outer surface of the chain (32). A slide rail (33) is fixedly connected to the bottom end of the connecting block (36). A cross plate (39) is fixedly connected to the lower part of one end of the slide rail (33). A double-acting cylinder (38) is fixedly connected to the top end of the cross plate (39). The output end of the double-acting cylinder (38) is fixedly connected to a moving block (35). A telescopic rod (34) is fixedly connected to the bottom end of the moving block (35). The bottom end of the telescopic rod (34) is fixedly connected to the top end of the compression tester body (6).

3. The strength testing device for plastic parts of an automobile shell according to claim 1, characterized in that: The bottom ends of the two fixing plates (29) are flush with the top end of the test bench (4).

4. The strength testing device for plastic parts of an automobile shell according to claim 1, wherein: Both ends of the two sliders (25) are fixedly connected with clamping blocks (23), and clamping grooves (24) for cooperating with the four clamping blocks (23) are formed at both ends of the long groove (21), and the outer surface of the corresponding clamping block (23) is slidably connected with the inner wall of the clamping groove (24).

5. The strength testing device for plastic parts of an automobile shell according to claim 1, characterized in that: The external threads of the worm gear (202) and the worm (205) are matched with each other.

6. The strength testing device for plastic parts of an automobile shell according to claim 2, wherein: A limiting groove (302) for using the connecting block (36) is formed at the top end of the bracket (5), and the top end of the connecting block (36) penetrates through the limiting groove (302) and is fixedly connected with a positioning plate (303), and the bottom end of the positioning plate (303) is slidably connected with the top end of the bracket (5).

7. The strength testing device for plastic parts of an automobile shell according to claim 2, wherein: Both ends of the moving block (35) are respectively slidably connected with the inner walls on both sides of the slide rail (33).

8. The strength testing device for plastic parts of an automobile shell according to claim 1, characterized in that: The bracket (5) is in an inverted "U" shape.

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