Shock resistance testing device

Abstract

The utility model discloses an impact resistance testing device, which relates to the technical field of impact resistance testing and comprises a bottom plate and a sliding block, vertical rods are fixedly connected to the upper end of the sliding block, a cross rod is fixedly connected to the top ends of the two vertical rods, a lifting plate is arranged between the two vertical rods in a sliding manner, and a fixed disc is fixedly connected to the middle of the bottom end of the lifting plate. A plurality of fixing grooves are formed in the bottom end of the fixing disc in an annular array mode, motors are fixedly arranged at the positions, corresponding to the fixing grooves, of the outer side of the fixing disc, the output ends of the motors penetrate through the side wall of the fixing disc and extend into the corresponding fixing grooves, the output ends of the motors are fixedly connected with lead screws, and the other ends of the lead screws are rotationally connected with the inner walls of the fixing grooves; the bottom end of the threaded block penetrates through the fixing groove and is fixedly connected with a movable block, and an electromagnet is fixedly installed at the bottom end of the movable block. The problem that in the prior art, the time cost of a test is possibly increased due to the fact that copper balls with different weights are replaced before each test is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of impact resistance test, in particular to an impact resistance test device. Background Art

[0002] An impact resistance test device, usually called an impact testing machine or an impact test bench, is a device used to test the strength, durability and stability of materials, products or components when they are subjected to impact loads.

[0003] When the existing impact resistance test device conducts tests on different samples, it is necessary to install copper balls of different weights at the lower end of the electromagnet according to different tests, let the copper balls impact the central part of the test sample from a specified height, and then check the changes on the surface of the impacted test sample.

[0004] The existing technology has the following defects: Changing copper balls of different weights before each test may increase the time cost of the test. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an impact resistance test device, which solves the problem that changing copper balls of different weights before each test in the existing technology may increase the time cost of the test.

[0006] To achieve the above object, according to an embodiment of the first aspect of the utility model, an impact resistance test device is provided, including: a bottom plate, a slider, a vertical rod is fixedly connected to the upper end of the slider, a cross rod is fixedly connected to the tops of the two vertical rods together, a lifting plate is slidably arranged between the two vertical rods, a fixed disk is fixedly connected to the middle of the bottom end of the lifting plate, a plurality of fixing grooves are arranged in a circular array at the bottom end of the fixed disk, motors are fixedly arranged on the outside of the fixed disk and at positions corresponding to the fixing grooves, the output end of the motor passes through the side wall of the fixed disk and extends into the corresponding fixing groove, the output end of the motor is fixedly connected with a screw rod, the other end of the screw rod is rotatably connected with the inner wall of the fixing groove, a threaded block is threadedly connected to the screw rod, the bottom end of the threaded block passes through the fixing groove and is fixedly connected with a moving block, an electromagnet is fixedly installed at the bottom end of the moving block, and steel balls are adsorbed at the bottom end of the electromagnet, and the weights of each steel ball are different.

[0007] As a further scheme of the utility model: symmetrically fixed connections are made on the upper end face of the bottom plate with linear guide rails, sliders are slidably connected to the outside of the linear guide rails, the sliders are in a "U" shape, a protective frame is fixedly installed on the upper end of the bottom plate, inserting rods are inserted through the sliders, mounting holes for inserting the inserting rods are provided on the sliders and the linear guide rails, three mounting holes are equidistantly arranged on the linear guide rails, and one mounting hole is provided on the slider.

[0008] As a further solution of the present invention: a cylinder is fixedly provided at the bottom end of the crossbar, and an output end of the cylinder is fixedly connected to the lifting plate.

[0009] As a further solution of the present invention: a limiting rod is fixedly connected to the middle of the bottom end of the fixed plate, and a limiting groove is provided on a side of the movable block close to the limiting rod.

[0010] As a further solution of the present invention: a laser distance measuring sensor is fixedly provided on the front end surface of the lifting plate, and a scale value is provided on the front end surface of the vertical pole.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. By setting up a fixed plate, select the corresponding steel ball according to different experiments, start the corresponding motor, and the output end of the motor drives the screw to rotate, causing the threaded block, moving block, and electromagnet to move toward the limit rod until the limit rod contacts the inner wall of the limit groove. The corresponding electromagnet is powered off through an external device, and the corresponding steel ball falls, impacting the middle position of the reflective film pattern or the raised road sign pattern, and the changes in the impacted surface are detected. This reduces the time of replacing steel balls.

[0013] 2. Comparing the height data obtained by the laser ranging sensor with the scale value on the pole can further verify and calibrate the accuracy of the height data.

[0014] 3. By opening mounting holes for the insertion of the rod on the slider and the linear guide rail, and opening three mounting holes at equal distances on the linear guide rail, the steel ball can be lowered from three different horizontal positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is an enlarged view of part A of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the fixed disk of the utility model;

[0018] Figure 4 It is a front cross-sectional view of the fixing plate of the present invention.

[0019] In the figure: 1. Base plate; 2. Protective frame; 3. Linear guide rail; 4. Slider; 5. Vertical pole; 6. Insert rod; 7. Cross bar; 8. Cylinder; 9. Lifting plate; 10. Fixed plate; 11. Motor; 12. Fixed slot; 13. Moving block; 131. Limit slot; 14. Electromagnet; 15. Steel ball; 16. Limit rod; 17. Threaded block; 18. Laser ranging sensor. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] As Figure 1-4 shown, the anti-impact performance test device includes: a bottom plate 1, linear guide rails 3 symmetrically and fixedly connected to the upper end surface of the bottom plate 1, a slider 4 slidably connected to the outside of the linear guide rails 3. The slider 4 is in a "U" shape, and a protective frame 2 is fixedly installed on the upper end of the bottom plate 1.

[0022] A plug rod 6 is inserted through the slider 4. Installation holes for the plug rod 6 to pass through are provided on the slider 4 and the linear guide rails 3. Three installation holes are equidistantly provided on the linear guide rails 3, and one installation hole is provided on the slider 4.

[0023] A vertical rod 5 is fixedly connected to the upper end of the slider 4. The tops of the two vertical rods 5 are jointly fixedly connected with a cross bar 7. A cylinder 8 is fixedly arranged at the bottom end of the cross bar 7. A lifting plate 9 is slidably arranged between the two vertical rods 5. The output end of the cylinder 8 is fixedly connected to the lifting plate 9. When the cylinder 8 is started, the output end of the cylinder 8 can drive the lifting plate 9 to move up and down in the vertical direction. When an anti-impact test needs to be carried out on a specimen, according to different experiments, it is necessary to start the cylinder 8 to move the lifting plate 9 to different heights.

[0024] A fixed disk 10 is fixedly connected to the middle of the bottom end of the lifting plate 9. A limiting rod 16 is fixedly connected to the middle of the bottom end of the fixed disk 10. A plurality of fixing grooves 12 are annularly arranged at the bottom end of the fixed disk 10. Motors 11 are fixedly arranged on the outside of the fixed disk 10 and at positions corresponding to the fixing grooves 12. The output end of the motor 11 passes through the side wall of the fixed disk 10 and extends into the corresponding fixing groove 12. The output end of the motor 11 is fixedly connected with a screw rod, and the other end of the screw rod is rotatably connected to the inner wall of the fixing groove 12.

[0025] A threaded block 17 is threadedly connected to the screw rod. The bottom end of the threaded block 17 passes through the fixing groove 12 and is fixedly connected with a moving block 13. A limiting groove 131 is provided on one side of the moving block 13 close to the limiting rod 16. An electromagnet 14 is fixedly installed at the bottom end of the moving block 13. The electromagnet 14 is electrically connected to an external device. Steel balls 15 are adsorbed at the bottom end of the electromagnet 14. The weights of each steel ball 15 are different. The size of the limiting groove 131 is specially designed. When the limiting rod 16 abuts against the inner wall of the limiting groove 131, it means that the steel ball 15 is at the middle position of the bottom end of the fixed disk 10.

[0026] A laser rangefinder 18 is fixedly mounted on the front face of the lift plate 9 and electrically connected to an external device. A scale is provided on the front face of the upright 5. The accuracy of the height data can be further verified and calibrated by comparing the height data obtained by the laser rangefinder 18 with the scale data on the upright 5.

[0027] Working principle:

[0028] When the impact test needs to be carried out on the sample, the cylinder 8 needs to be started to move the lifting plate 9 to different heights according to different experiments, and the laser distance sensor 18 needs to be turned on at the same time. The laser distance sensor 18 detects the height of the bottom of the lifting plate 9 to the bottom plate 1. The height data obtained by the laser distance sensor 18 is compared with the data of the scale value on the vertical pole 5 to further verify and calibrate the accuracy of the height data;

[0029] Conduct an impact resistance test on reflective film and raised road signs: fix the reflective film pattern or raised road sign pattern to the middle of the upper end of the base plate 1, move the slider 4 to the middle of the linear guide 3, insert the rod 6 into the mounting holes on the slider 4 and the linear guide 3, fix the slider 4, adjust the lifting plate 9 to the test height, start the corresponding motor 11, and the output end of the motor 11 drives the screw to rotate, so that the threaded block 17, the moving block 13, and the electromagnet 14 move toward the limit rod 16 until the limit rod 16 abuts against the inner wall of the limit groove 131, and the corresponding electromagnet 14 is de-energized through an external device, and the corresponding steel ball 15 falls, impacting the middle position of the reflective film pattern or raised road sign pattern, and checking the changes in the impacted surface;

[0030] Conduct an impact resistance test of the anti-glare plate: fix the anti-glare plate pattern on the upper end of the base plate 1, move the slider 4 to the middle of the linear guide 3, use the insert rod 6 to fix the slider 4, adjust the lifting plate 9 to the experimental height, start the corresponding motor 11, and the output end of the motor 11 drives the screw to rotate, so that the threaded block 17, the moving block 13, and the electromagnet 14 move toward the limit rod 16 until the limit rod 16 abuts against the inner wall of the limit groove 131, and the corresponding electromagnet 14 is powered off through an external device, and the corresponding steel ball 15 falls, impacting the middle position of the anti-glare plate pattern, and checking the changes in the impacted surface; then move the slider 4 to the upper and left position of the base plate 1 and the right position of the upper end of the base plate 1, use the insert rod 6 to fix the slider 4, and conduct two tests again to perform impact tests on both sides of the anti-glare plate pattern.

[0031] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. Impact resistance test device, characterized in that: Comprising: A bottom plate (1) and a slider (4). A vertical rod (5) is fixedly connected to the upper end of the slider (4). The top ends of the two vertical rods (5) are commonly fixedly connected with a cross bar (7). A lifting plate (9) is slidably arranged between the two vertical rods (5). The middle part of the bottom end of the lifting plate (9) is fixedly connected with a fixing plate (10). A plurality of fixing grooves (12) are arranged in an annular array at the bottom end of the fixing plate (10). Motors (11) are fixedly arranged on the outer side of the fixing plate (10) and at positions corresponding to the fixing grooves (12). The output end of the motor (11) passes through the side wall of the fixing plate (10) and extends into the corresponding fixing groove (12). The output end of the motor (11) is fixedly connected with a screw rod. The other end of the screw rod is rotatably connected with the inner wall of the fixing groove (12). A threaded block (17) is threadedly connected to the screw rod. The bottom end of the threaded block (17) passes through the fixing groove (12) and is fixedly connected with a moving block (13). An electromagnet (14) is fixedly installed at the bottom end of the moving block (13). Steel balls (15) are adsorbed at the bottom end of the electromagnet (14). The weight of each steel ball (15) is different.

2. The impact resistance testing device according to claim 1, characterized in that: Linear guide rails (3) are symmetrically and fixedly connected to the upper end face of the bottom plate (1). The slider (4) is slidably connected to the outer side of the linear guide rail (3). The slider (4) is in a "U" shape. A protective frame (2) is fixedly installed on the upper end of the bottom plate (1). A plug rod (6) is inserted through the slider (4). Installation holes for the plug rod (6) to pass through are provided on the slider (4) and the linear guide rail (3). Three installation holes are equidistantly arranged on the linear guide rail (3), and one installation hole is provided on the slider (4).

3. The impact resistance testing device according to claim 1, characterized in that: A cylinder (8) is fixedly arranged at the bottom end of the cross bar (7). The output end of the cylinder (8) is fixedly connected with the lifting plate (9).

4. The impact resistance testing device according to claim 1, characterized in that: A limiting rod (16) is fixedly connected to the middle part of the bottom end of the fixing plate (10). A limiting groove (131) is provided on one side of the moving block (13) close to the limiting rod (16).

5. The impact resistance testing device according to claim 1, characterized in that: A laser distance sensor (18) is fixedly arranged on the front end face of the lifting plate (9). Scale values are provided on the front end face of the vertical rod (5).

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