Impact testing device

Abstract

The present invention discloses an impact test device, including an impact component, a support component and a measuring component; the impact component includes a cylinder body, a piston and a driving device, and the piston is connected to the driving device through a sleeve; a vent pipe is arranged in the sleeve; a ring sleeve and a cylinder cover are sequentially sleeved on the sleeve, and a vent hole matched with the vent pipe is arranged in the ring sleeve; a spring is also arranged at the lower end of the cylinder cover, and an air inlet, a first support platform for supporting the cylinder cover and a second support platform for supporting the spring are arranged in the cylinder body. By setting the impact component and the measuring component, the piston can repeatedly and accurately perform impact tests on the workpiece, and the kinetic energy of the piston can be obtained through the test block, thereby improving the test efficiency and test accuracy of silicone products; by setting the cylinder body and the driving device, it is convenient to control the speed of the piston before contacting the workpiece, ensuring that the impact component can impact the workpiece at a preset speed, and ensuring the production yield of silicone products.

Description

Technical Field

[0001] The invention relates to the technical field of silica gel product production, in particular to an impact testing device. Background Art

[0002] In the process of production and development of sealing rings, products of different materials and specifications need to be tested under simulated working conditions before batch delivery to guide design and development and confirm that the products meet the requirements. At present, experimental equipment generally uses drop hammers, pendulums and other methods to perform impact tests. These test devices have the problems of slow test speed and long test cycle. Due to the direct drive impact method, it often cannot rebound naturally after the impact test is completed, and there is a problem that the contact time of the impact is difficult to accurately control. It cannot fully simulate the product use conditions, resulting in large measurement errors of impact work, affecting the accuracy of the sealing ring impact test. Summary of the invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide an impact testing device to perform rapid and accurate impact testing on silicone products, thereby improving the testing efficiency and yield rate of silicone products.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] 4. The repairing kit for automotive dents, according to claim 1, wherein the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a through-hole. The bosses comprise a through-hole, a screw bolt, and a through-hole. The bosses comprise a through-hole, a screw bolt, and a through-hole. The bosses comprise a through-hole, a screw bolt, and a through-hole.

[0006] The above-mentioned impact testing device has at least the following beneficial effects: by setting up an impact component and a measuring component, the piston can repeatedly and accurately perform impact tests on the workpiece, and the kinetic energy of the piston can be obtained through the test block, thereby improving the testing efficiency and accuracy of silicone products; by setting up a cylinder body and a driving device, it is convenient to control the speed of the piston before it contacts the workpiece, ensuring that the impact component can impact the workpiece at a preset speed, thereby ensuring the production yield of silicone products; by setting up a ring sleeve and a vent pipe, it is ensured that the driving device can repeatedly drive the piston to reciprocate, and the cylinder body periodically exhausts air to the outside through the vent pipe, thereby improving the service life of the impact testing device.

[0007] Furthermore, the measuring assembly also includes a sensing part, and a magnetic ring matching the sensing part is sleeved on the piston; the sensing part is electrically connected to the driving device. By providing the sensing part and the magnetic ring, the driving device can accurately control the movement of the piston, thereby improving the test accuracy of the silicone product.

[0008] Furthermore, an inner cylinder is provided at the lower end of the cylinder cover, and the spring is sleeved on the inner cylinder; a first cavity is provided in the inner cylinder, and the piston reciprocates in the first cavity. By providing the inner cylinder, it is ensured that the piston can move along the length direction of the inner cylinder and impact the workpiece at a vertical angle, thereby ensuring the test accuracy of the silicone product.

[0009] Furthermore, a shock absorbing ring is provided between the cylinder cover and the inner cylinder, and a sealing ring is provided between the inner cylinder and the second support platform. By providing the shock absorbing ring and the sealing ring, direct collision between the cylinder cover and the inner cylinder is avoided, and gas leakage under the piston is also avoided to affect the test accuracy of the silicone product.

[0010] Furthermore, the inner cylinder, the second support platform and the cylinder body form a second cavity, and a first air return hole is provided on the side of the second cavity. By providing the first air return hole, it is convenient to adjust the air pressure of the second cavity, thereby automatically resetting the piston and improving the testing efficiency of silicone products.

[0011] Furthermore, the lower end of the inner cylinder is provided with a plurality of second air return holes connecting the second cavity and the first cavity. By providing the second air return holes, the air pressure below the piston can be adjusted through the second cavity and the first air return holes, thereby ensuring the smoothness of the piston operation.

[0012] Furthermore, a wear-resistant sleeve is provided at the upper end of the cylinder body, and the sleeve passes through the wear-resistant sleeve and is fixedly connected to the piston. By providing the wear-resistant sleeve, the sleeve is prevented from wearing the cylinder body during movement, which affects the service life of the impact test device.

[0013] Furthermore, a mounting seat for supporting the workpiece is provided on the pressure relief port, and a heating wire is provided in the mounting seat. By providing the mounting seat and the heating wire, it is convenient to fix the workpiece under the piston according to the test requirements, and adjust the working temperature of the heating wire according to the actual use environment, thereby improving the compatibility of the impact test device.

[0014] Furthermore, an adjustment pad is provided at the lower end of the mounting seat. By providing the adjustment pad, the position of the mounting seat can be quickly adjusted according to the height and size of the workpiece, thereby improving the working efficiency of the impact testing device.

[0015] Furthermore, the support assembly includes an adjustment rod and a bracket connected to the cylinder body; the bracket is movably connected to the support assembly through the adjustment rod. By providing the adjustment rod and the bracket, the connection stability and adjustment flexibility between the support assembly and the impact assembly are ensured, and the impact assembly is prevented from being loosened or not adjusted properly during the test.

[0016] The beneficial effects of the above-mentioned impact testing device are: by setting up the impact component and the measuring component, the piston can repeatedly and accurately perform impact tests on the workpiece, and the kinetic energy of the piston can be obtained through the test block, thereby improving the testing efficiency and testing accuracy of silicone products; by setting up the cylinder body and the driving device, it is convenient to control the speed of the piston before it contacts the workpiece, ensuring that the impact component can impact the workpiece at a preset speed, thereby ensuring the production yield of silicone products; by setting up the ring sleeve and the ventilation pipe, it is ensured that the driving device can repeatedly drive the piston to reciprocate, and the cylinder body periodically exhausts air to the outside through the ventilation pipe, thereby improving the service life of the impact testing device; by setting up the induction part and the magnetic ring, it is convenient for the driving device to accurately control the movement of the piston, thereby improving the testing accuracy of silicone products; by setting up the inner cylinder, it is ensured that the piston can move along the length direction of the inner cylinder and impact the workpiece at a vertical angle, thereby ensuring the testing accuracy of silicone products.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural diagram of an impact testing device in a default state according to an embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of an impact testing device in an impact state according to an embodiment of the present invention;

[0021] Figure 3 for Figure 1A magnified view of the structure of the middle casing and the annular sleeve;

[0022] Figure 4 for Figure 1 Enlarged view of the structure of the cylinder body and piston. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Reference Figures 1 to 4 The embodiment of the present invention provides an impact test device, including an impact assembly 100, a support assembly 200 and a measuring assembly 300; the impact assembly 100 and the measuring assembly 300 are fixed on the support assembly 200; the impact assembly 100 includes a cylinder body 110, a piston 120 and a driving device 130, and the piston 120 is connected to the driving device 130 through a sleeve 140; a vent pipe 141 is provided in the sleeve 140; a ring sleeve 150 and a cylinder cover 160 are sequentially sleeved on the sleeve 140, and a vent hole 151 matching the vent pipe 141 is provided in the ring sleeve 150; the cylinder cover A spring 161 is also provided at the lower end of 160, and an air inlet 111, a first support platform 112 for supporting the cylinder cover 160 and a second support platform 113 for supporting the spring 161 are provided in the cylinder body 110, and the first support platform 112 is located between the air inlet 111 and the second support platform 113; a plurality of trigger blocks 121 are provided at the lower end of the piston 120, and a pressure relief port 170 cooperating with the trigger block 121 is provided at the lower end of the cylinder body 110; the measuring assembly 300 includes a plurality of test blocks 310 cooperating with the trigger block 121, and the test block 310 is located below the pressure relief port 170.

[0025] By setting the impact component 100 and the measuring component 300, the piston 120 can repeatedly and accurately perform impact tests on the workpiece 400, and the kinetic energy of the piston 120 can be obtained through the test block 310, thereby improving the test efficiency and test accuracy of silicone products; by setting the cylinder body 110 and the driving device 130, it is convenient to control the speed of the piston 120 before contacting the workpiece 400, ensuring that the impact component 100 can impact the workpiece 400 at a preset speed, thereby ensuring the production yield of silicone products; by setting the ring sleeve 150 and the ventilation pipe 141, it is ensured that the driving device 130 can repeatedly drive the piston 120 to reciprocate, and the cylinder body 110 periodically exhausts air to the outside through the ventilation pipe 141, thereby improving the service life of the impact testing device.

[0026] In another embodiment, the measuring assembly 300 further includes a sensing part 320, and a magnetic ring 122 matching the sensing part 320 is sleeved on the piston 120; the sensing part 320 is electrically connected to the driving device 130. By providing the sensing part 320 and the magnetic ring 122, it is convenient for the driving device 130 to accurately control the movement of the piston 120, thereby improving the test accuracy of the silicone product.

[0027] In another embodiment, an inner cylinder 180 is provided at the lower end of the cylinder cover 160, and a spring 161 is sleeved on the inner cylinder 180; a first cavity 185 is provided in the inner cylinder 180, and the piston 120 reciprocates in the first cavity 185. By providing the inner cylinder 180, it is ensured that the piston 120 can move along the length direction of the inner cylinder 180 and impact the workpiece 400 at a vertical angle, thereby ensuring the accuracy of the test of the silicone product.

[0028] In another embodiment, a damping ring 181 is provided between the cylinder cover 160 and the inner cylinder 180; and a sealing ring 182 is provided between the inner cylinder 180 and the second support platform 113. By providing the damping ring 181 and the sealing ring 182, direct collision between the cylinder cover 160 and the inner cylinder 180 is avoided, and gas leakage under the piston 120 is also avoided to affect the test accuracy of the silicone product.

[0029] In another embodiment, the inner cylinder 180, the second support platform 113 and the cylinder body 110 form a second cavity 114, and a first air return hole 115 is provided on the side of the second cavity 114. By providing the first air return hole 115, it is convenient to adjust the air pressure of the second cavity 114, so that the piston 120 is automatically reset, thereby improving the testing efficiency of silicone products.

[0030] In another embodiment, the lower end of the inner cylinder 180 is provided with a plurality of second air return holes 183 connecting the second cavity 114 and the first cavity 185. By providing the second air return holes 183, the air pressure below the piston 120 can be adjusted through the second cavity 114 and the first air return holes 115, thereby ensuring the smoothness of the operation of the piston 120.

[0031] In another embodiment, a wear-resistant sleeve 142 is provided at the upper end of the cylinder body 110, and the sleeve 140 passes through the wear-resistant sleeve 142 and is fixedly connected to the piston 120. By providing the wear-resistant sleeve 142, it is prevented that the sleeve 140 and the cylinder body 110 are worn during the movement, which affects the service life of the impact test device. In this embodiment, the cylinder head 160 and the cylinder body 110 form a third cavity 116, and the sleeve 140 and the wear-resistant sleeve 142 are both located in the third cavity 116.

[0032] In another embodiment, a mounting seat 190 for supporting the workpiece 400 is provided on the pressure relief port 170, and a heating wire (not shown) is provided in the mounting seat 190. By providing the mounting seat 190 and the heating wire, it is convenient to fix the workpiece 400 under the piston 120 according to the test requirements, and adjust the working temperature of the heating wire according to the actual use environment, thereby improving the compatibility of the impact test device.

[0033] In another embodiment, an adjustment pad 191 is further provided at the lower end of the mounting seat 190. By providing the adjustment pad 191, the position of the mounting seat 190 can be quickly adjusted according to the height and size of the workpiece 400, thereby improving the working efficiency of the impact testing device.

[0034] In another embodiment, the support assembly 200 includes an adjustment rod 210 and a bracket 220 connected to the cylinder body 110; the bracket 220 is movably connected to the support assembly 200 through the adjustment rod 210. By providing the adjustment rod 210 and the bracket 220, the connection stability and adjustment flexibility between the support assembly 200 and the impact assembly 100 are ensured, and the impact assembly 100 is prevented from being loosened or adjusted in place during the test process.

[0035] The working principle of the present invention is further described below.

[0036] Before the test, firstly, according to the shape and size of the silicone product workpiece 400, such as the sealing ring, etc., the corresponding mounting seat 190 is selected, and the mounting seat 190 is placed in a suitable position through the corresponding adjustment pad 191 to ensure that the piston 120 impacts the workpiece when it moves downward; at the same time, according to the working temperature of the workpiece 400, the workpiece 400 is kept at a suitable temperature through the heating wire to ensure the accuracy of the impact test. During the test, firstly, the workpiece is placed on the mounting seat 190, and the impact test device is placed in a position such as Figure 1In the default state shown, the piston 120 is located at the upper end of the third cavity 116; the driving device 130 drives the sleeve 140 and the piston 120 to move downward, pushing the cylinder head 160 to press against the inner cylinder 180. At the same time, the vent pipe 141 in the sleeve 140 is aligned and connected with the vent hole 151, the third cavity 116 is connected with the atmosphere, and the piston 120 is pushed upward by the compressed air in the inner cylinder 180; then the driving device 130 drives the sleeve 140 and the piston 120 to move upward, the vent pipe 141 is no longer connected with the vent hole 151, and the third cavity 116 is isolated from the atmosphere; then, high-pressure gas is input into the third cavity 116 through the air inlet 111; as the sleeve 140 continues to move upward, the air inlet 111 is pushed upward, and the air inlet 111 is pushed upward. At the same time, the cylinder cover 160 is no longer subjected to the pressure of the sleeve 140, and the spring 161 pushes the cylinder cover 160 open. At this time, the high-pressure gas in the third cavity 116 enters the first cavity 185 through the gap around the cylinder cover 160; until the cylinder cover 160 is completely opened, and the upper end of the cylinder cover 160 is tightly attached to the lower end of the sleeve 140, a large amount of high-pressure gas enters the inner cylinder 180, pushing the piston 120 to move downward at a high speed to do work, and hit the workpiece 400 below. At this time, the impact test device is in the following state. Figure 2 The impact state shown; and the piston 120 immediately before the impact occurs, the magnetic ring 122 on the piston 120 triggers the induction unit 320, and the induction unit 320 sends a signal to the drive device 130, and the drive device 130 drives the sleeve 140 to move downward, and presses down the cylinder head 160, so that the upper part of the piston 120 of the inner cylinder 180 is connected to the atmosphere for pressure relief, and the piston 120 rebounds after hitting the workpiece 400, and moves upward under the action of the compressed air under the first cavity 185, and the piston 120 returns to the top, and the impact test device returns to the default state. At the same time, the multiple trigger blocks 121 under the piston 120 are evenly distributed at a spacing of 3mm. For example, the number of trigger blocks 121 is three. The three trigger blocks 121 pass through the test block 310 in sequence, and the response speed of the test block 310 is 5us. According to the time difference measured by the trigger block 121 through the test block 310, the running speed of the piston 120 is calculated, and the kinetic energy of the piston 120 is calculated through the mass of the piston 120, thereby obtaining an accurate impact result. Since the piston 120 can be automatically reset, the impact test device can continuously perform impact tests on the workpiece 400 to ensure the test efficiency of the workpiece 400. It can be understood that during the test process, by adjusting the height of the workpiece 400 by adjusting the pad 191, when the piston 120 contacts the workpiece 400, the trigger block 121 is aligned with the test block 310, which can ensure that the energy during the collision is consistent with the detection energy, thereby ensuring the test accuracy of the impact test device.

[0037] From the above description, it can be seen that the impact test device of the present invention can repeatedly and accurately perform impact tests on the workpiece 400 by setting the impact component 100 and the measuring component 300, and obtain the kinetic energy of the piston 120 through the test block 310, thereby improving the test efficiency and test accuracy of silicone products; by setting the cylinder body 110 and the driving device 130, it is convenient to control the speed of the piston 120 before contacting the workpiece 400, ensuring that the impact component 100 can impact the workpiece 400 at a preset speed, thereby ensuring the production yield of silicone products; by setting The ring sleeve 150 and the vent pipe 141 ensure that the driving device 130 can repeatedly drive the piston 120 to reciprocate, and the cylinder body 110 periodically exhausts air outward through the vent pipe 141, thereby increasing the service life of the impact test device; by providing the sensing part 320 and the magnetic ring 122, it is convenient for the driving device 130 to accurately control the movement of the piston 120, thereby improving the test accuracy of silicone products; by providing the inner cylinder 180, it is ensured that the piston 120 can move along the length direction of the inner cylinder 180 and impact the workpiece 400 at a vertical angle, thereby ensuring the test accuracy of silicone products.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An impact testing device, characterized in that: The cam is provided with a plurality of trigger blocks, and the lower end of the piston is provided with a pressure relief port which cooperates with the trigger block. Below the pressure relief port; an inner cylinder is provided at the lower end of the cylinder cover; the driving device drives the sleeve and the piston to move downward, pushing the cylinder cover to be pressed against the inner cylinder; at the same time, the vent pipe is aligned with and connected to the vent hole, the cylinder body is connected to the atmosphere, and the piston is pushed upward by the compressed air in the inner cylinder; then, the driving device drives the sleeve and the piston to move upward, the vent pipe is no longer connected to the vent hole, and the cylinder body is isolated from the atmosphere; then, high-pressure gas is input into the cylinder body through the air inlet, and since the sleeve continues to move upward and the cylinder cover is no longer subjected to the pressure of the sleeve, the spring pushes open the cylinder cover, and at this time, the high-pressure gas at the upper end of the cylinder body enters the lower end of the cylinder body through the gap around the cylinder cover, and pushes the piston to move downward at a high speed.

2. An impact testing device according to claim 1, characterized in that: The measuring assembly also includes a sensing part, and a magnetic ring matching with the sensing part is sleeved on the piston; the sensing part is electrically connected to the driving device.

3. An impact testing device according to claim 1, characterized in that: The spring is sleeved on the inner cylinder; a first cavity is arranged in the inner cylinder, and the piston reciprocates in the first cavity.

4. An impact testing device according to claim 3, characterized in that: A shock-absorbing ring is provided between the cylinder cover and the inner cylinder; and a sealing ring is provided between the inner cylinder and the second supporting platform.

5. The impact testing device according to claim 3, characterized in that: The inner cylinder, the second support platform and the cylinder body form a second cavity, and a first air return hole is provided on a side of the second cavity.

6. An impact testing device according to claim 5, characterized in that: A plurality of second air return holes communicating with the second cavity and the first cavity are provided at the lower end of the inner cylinder.

7. An impact testing device according to claim 1, characterized in that: A wear-resistant sleeve is provided at the upper end of the cylinder body, and the sleeve passes through the wear-resistant sleeve and is fixedly connected to the piston.

8. The impact testing device according to claim 1, characterized in that: The pressure relief port is provided with a mounting seat for supporting a workpiece, and a heating wire is provided in the mounting seat.

9. An impact testing device according to claim 8, characterized in that: An adjusting pad is also provided at the lower end of the mounting seat.

10. The impact testing device according to claim 1, characterized in that: The support assembly comprises an adjusting rod and a bracket connected to the cylinder body; the bracket is movably connected to the support assembly through the adjusting rod.

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