Cantilever beam impact test equipment suitable for plastic materials

Abstract

The utility model relates to the technical field of cantilever beam impact, in particular to cantilever beam impact test equipment suitable for plastic materials, which comprises a base, a rack is fixedly mounted on the surface of the base, a rotating rod is rotatably connected to the inside of the rack, a cantilever beam is fixedly mounted on the surface of the rotating rod, and the cantilever beam is connected with the rack. And an impact head is fixedly mounted at the end of the cantilever beam. According to the cantilever beam impact test device, the push plate is driven by the first screw rod to move, the push plate moves smoothly through a rotating structure between the screw rod and the connecting plate, fine adjustment can be carried out according to needs, it is guaranteed that the cantilever beam impact test device has high precision and high stability during operation, a tester can accurately control the impact position and strength, and the test efficiency is improved. The structure of the spring and the elastic block ensures the stability of the cantilever beam at the fixed position through uniformly distributed resilience force, the convenience of test operation is improved, and test errors caused by unstable clamping are also effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever beam impact testing, in particular to a cantilever beam impact testing device suitable for plastic materials. Background Art

[0002] With the continuous advancement of materials science, plastics, as lightweight, highly tough, and easily processed materials, have found widespread application across various industries. The use of plastics has increased annually, particularly in the automotive, construction, home appliance, and electronic equipment sectors. However, evaluating the properties of plastic materials, particularly their impact resistance, is crucial for product design and quality control. In practical applications, plastic products are often subjected to various mechanical shocks, making assessment of their impact resistance a key step in material selection and product design.

[0003] Currently, there are several devices on the market for testing the impact resistance of plastic materials, such as pendulum impact testers and simply supported beam impact testers. However, these devices often lack sufficient flexibility when dealing with plastic specimens of complex shapes and varying sizes. The specimens' securement is suboptimal, which can easily lead to specimen displacement or loosening during impact, thus affecting the accuracy and reliability of test results. Furthermore, existing equipment has limitations in terms of ease of operation and precision adjustment, making it difficult to adapt to varying test conditions. This is particularly true when specimens vary in size and shape, where adaptability is often insufficient.

[0004] In view of the above-mentioned deficiencies in the existing technology, there is an urgent need for a more flexible, efficient and highly stable testing equipment that can ensure the firm fixation of plastic specimens in impact tests and provide accurate experimental results. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problems raised in the above background technology.

[0006] The cam is fixedly mounted on the support frame, and the cam is connected to the support frame by a rotating shaft, the cam is fixedly mounted on the surface of the cam, the end of the cam is fixedly mounted on the impact head, the mounting seat is fixedly mounted on the surface of the mounting seat, the end of the cam is provided with a shell, the interior of the shell is provided with a slide groove, the interior of the slide groove is provided with a fixed pressure block and a movable pressure block, the top of the frame is fixedly mounted on the

[0007] Preferably, the fixed pressure block has a positioning slot defined within it, and a positioning block is fixedly mounted on the side of the movable pressure block, which slides within the positioning slot. This ensures that the movable pressure block can move stably and accurately during use without drifting, thereby ensuring the test sample is firmly fixed, improving the stability of the equipment and test accuracy, and making the test results more reliable.

[0008] Preferably, a second screw is rotatably connected to the side of the movable pressure block, and the second screw is threadedly connected to the interior of the housing. Here, the operator can flexibly adjust the position of the movable pressure block by rotating the second screw, thereby conveniently clamping or releasing the specimen, improving the operating convenience of the device and enhancing the flexibility of the device in accommodating specimens of different sizes.

[0009] Preferably, the number of the elastic blocks is two groups, and the two groups of elastic blocks are symmetrically distributed on both sides of the fixing seat. Here, the symmetrical distribution of the elastic blocks provides a uniform rebound force, so that the operator can easily fix the cantilever beam on the inner side of the fixing seat.

[0010] Preferably, a slide rod is fixedly mounted on the surface of the push plate, and a connecting plate is fixedly mounted on the end of the slide rod. The connecting plate has a circular hole formed on its surface, and the first screw is rotatably connected within the circular hole. This makes the movement of the push plate smoother and more precise. The circular hole in the connecting plate allows the first screw to rotate freely, thereby pushing the push plate. This not only improves the precision of the device, but also ensures smooth and flexible operation, facilitating accurate positioning and adjustment of the cantilever beam.

[0011] Preferably, an adjustment rod is slidably connected to the interior of the hollow rod, the housing is mounted on top of the adjustment rod, and the surface of the hollow rod is provided with a socket, and the surface of the adjustment rod is provided with a through-hole, with fasteners fixedly mounted within the socket and through-hole. This allows the height of the housing to be adjusted as needed to accommodate specimens of varying sizes or testing requirements. The fasteners in the socket and through-hole further ensure height stability after adjustment, improving the flexibility and adaptability of the device and enabling it to meet the needs of various testing scenarios.

[0012] Preferably, the perforations are evenly spaced on the surface of the adjustment rod, and the insertion holes and the perforations have the same diameter. Here, the evenly spaced perforations, in conjunction with the insertion holes, enable more precise height adjustment and a more convenient adjustment process, simplifying device operation and enhancing the accuracy of device adjustment, ensuring that each adjustment meets the requirements of precise testing.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, the movement of the push plate is driven by the first screw. The rotating structure between the screw and the connecting plate makes the movement of the push plate smooth and can be fine-tuned as needed, ensuring that the cantilever beam impact test equipment has high precision and high stability during operation. The tester can accurately control the position and force of the impact, thereby obtaining more reliable experimental results. The spring and spring block structure ensures the stability of the cantilever beam in a fixed position through the evenly distributed rebound force, improves the convenience of the test operation, and effectively avoids the test error caused by unstable clamping.

[0015] 2. In the present invention, the sliding connection design between the hollow rod and the adjustment rod enables the equipment to be easily adjusted in height according to the sample size or different experimental requirements. The equidistant distribution of the perforations and jacks on the surface of the adjustment rod enables the equipment to have higher precision and ease of operation when adjusting the height. This flexible design enhances the functional scalability of the equipment in dealing with different test scenarios, which not only improves the operating efficiency of the equipment, but also improves the accuracy and repeatability of the experiment, enabling it to meet a variety of complex experimental needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic diagram of a cantilever beam impact test device suitable for plastic materials;

[0017] Figure 2 This utility model provides a bottom view of a cantilever beam impact test device suitable for plastic materials;

[0018] Figure 3The utility model proposes an exploded structural diagram of the mounting seat of a cantilever beam impact test device suitable for plastic materials;

[0019] Figure 4 The utility model provides an explosion structure diagram of the adjustment rod position of a cantilever beam impact test equipment suitable for plastic materials.

[0020] Legend:

[0021] 1. Base; 2. Frame; 3. Rotating rod; 4. Cantilever beam; 5. Impact head; 6. Fixed seat; 7. Vertical plate; 8. Sliding rod; 9. Push plate; 10. Connecting plate; 11. Round hole; 12. First screw; 13. Fixed block; 14. Groove; 15. Spring block; 16. Spring; 17. Mounting seat; 18. Hollow rod; 19. Adjusting rod; 20. Socket; 21. Fastener; 22. Through hole; 23. Housing; 24. Slide; 25. Fixed pressure block; 26. Positioning groove; 27. Movable pressure block; 28. Positioning block; 29. ​​Second screw. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1

[0025] See also Figure 1-4The utility model provides a technical solution: a cantilever beam impact test device suitable for plastic materials, comprising a base 1, a frame 2 is fixedly installed on the surface of the base 1, a rotating rod 3 is rotatably connected inside the frame 2, a cantilever beam 4 is fixedly installed on the surface of the rotating rod 3, an impact head 5 is fixedly installed on the end of the cantilever beam 4, a mounting seat 17 is fixedly installed on the surface of the mounting seat 17, a hollow rod 18 is fixedly installed on the surface of the hollow rod 18, a shell 23 is provided at the end of the hollow rod 18, a slide groove 24 is provided inside the shell 23, a fixed pressure block 25 and a movable pressure block 27 are provided inside the slide groove 24, and the fixed pressure block 25 has an internal opening. A positioning groove 26 is provided, and a positioning block 28 is fixedly installed on the side of the movable pressure block 27. The positioning block 28 is slidably connected inside the positioning groove 26, ensuring that the movable pressure block 27 can move stably and accurately during use without offset, thereby ensuring the fixing effect of the tested sample, improving the stability and test accuracy of the equipment, and making the test results more reliable. The side of the movable pressure block 27 is rotatably connected to a second screw rod 29, and the second screw rod 29 is threadedly connected to the inside of the housing 23. The operator can flexibly adjust the position of the movable pressure block 27 by rotating the second screw rod 29, thereby conveniently clamping or releasing the sample, and providing The operation convenience of the equipment is improved, and the flexibility of the equipment in adapting to samples of different sizes is also enhanced. A fixing seat 6 is fixedly installed on the top of the frame 2, and a fixing block 13 is fixedly installed on the side of the fixing seat 6. A groove 14 is provided inside the fixing block 13, and a spring block 15 is slidably connected inside the groove 14. A spring 16 is fixedly connected between the spring block 15 and the groove 14. There are two groups of spring blocks 15, and the two groups of spring blocks 15 are symmetrically distributed on both sides of the fixing seat 6. The symmetrical distribution of the spring blocks 15 provides a uniform rebound force, so that the operator can easily fix the cantilever beam 4 on the inner side of the fixing seat 6. The surface of the fixing seat 6 is fixed. A vertical plate 7 is fixedly installed, and the internal thread of the vertical plate 7 is connected to the first screw 12, and the end of the first screw 12 is rotatably connected to the push plate 9. A sliding rod 8 is fixedly installed on the surface of the push plate 9, and a connecting plate 10 is fixedly installed on the end of the sliding rod 8. A circular hole 11 is opened on the surface of the connecting plate 10, and the first screw 12 is rotatably connected inside the circular hole 11, so that the movement of the push plate 9 is smoother and more precise. The circular hole 11 on the connecting plate 10 allows the first screw 12 to rotate freely, thereby pushing the push plate 9, which not only improves the precision of the equipment, but also ensures the smoothness and flexibility of the operation, and helps to accurately locate and adjust the position of the cantilever beam 4.

[0026] Example 2

[0027] See also Figure 3-4The interior of the hollow rod 18 is slidably connected to an adjusting rod 19, and a shell 23 is installed on the top of the adjusting rod 19. A socket 20 is provided on the surface of the hollow rod 18, and a through-hole 22 is provided on the surface of the adjusting rod 19. A fastener 21 is fixedly installed inside the socket 20 and the through-hole 22, so that the height of the shell 23 can be adjusted as needed to adapt to specimens of different sizes or test requirements. The fasteners 21 of the socket 20 and the through-hole 22 further ensure the stability of the height after adjustment, improve the flexibility and adaptability of the equipment, and enable it to meet the needs of various test scenarios. The through-holes 22 are equidistantly distributed on the surface of the adjusting rod 19, and the sockets 20 and the through-holes 22 have the same diameter. The equidistantly distributed through-holes 22 are designed to be used in conjunction with the socket 20, which can make the adjusted height more precise and the adjustment process more convenient, which not only simplifies the operation of the equipment, but also enhances the accuracy of the equipment adjustment, so that each adjustment can meet the requirements of fine testing.

[0028] Working principle: The cantilever beam 4 is connected to the rotating rod 3 to achieve free rotation. The end of the cantilever beam 4 is equipped with an impact head 5. During the test, the cantilever beam 4 is driven by an external force to rotate rapidly. The impact head 5 applies an impact force to the sample, simulating the impact force environment encountered by the material in actual application. It can effectively evaluate the impact resistance of the material, especially for materials with strong toughness such as plastics. In order to ensure the accuracy and repeatability of the test, the equipment is equipped with a high-precision sample fixing system. The sample is placed inside the shell 23 and is firmly clamped by the cooperation of the fixed pressure block 25 and the movable pressure block 27. The movable pressure block 27 can be The second screw 29 is adjusted to flexibly adapt to specimens of different sizes and shapes, ensuring that the specimen will not shift or loosen during the force application process, thereby improving the stability and consistency of the test results, especially being able to maintain high accuracy in multiple tests. The movable pressure block 27 moves smoothly in the slide groove 24 inside the housing 23, making it more convenient for the operator to adjust the position of the specimen. At the same time, the design of the positioning groove 26 and the positioning block 28 ensures the precise movement of the movable pressure block 27, preventing deviation during the clamping process, thereby further improving the accuracy of the equipment. In addition, the spring 16 and the spring block 15 structure in the equipment are evenly distributed. The rebound force ensures the stability of the cantilever beam 4 in a fixed position, improves the convenience of test operation, and effectively avoids test errors caused by unstable clamping. The combination of the hollow rod 18 and the adjusting rod 19 enables the equipment to adjust the height according to different test requirements. The perforation 22 on the adjusting rod 19 is designed to be used in conjunction with the jack 20. The adjusted height is fixed by the fastener 21, ensuring the stability and adaptability of the equipment under different test conditions. It is suitable for specimens of various sizes and shapes, and is particularly convenient when frequent adjustment of test conditions is required. The cooperation of the push plate 9 and the slide bar 8 ensures the flatness of the cantilever beam 4 during movement. Stability and consistency, the movement of the push plate 9 is driven by the first screw 12, and the rotating structure between the screw and the connecting plate 10 makes the movement of the push plate 9 smooth and can be fine-tuned as needed, ensuring that the cantilever beam 4 impact test equipment has high precision and high stability during operation. The tester can accurately control the position and force of the impact, so as to obtain more reliable experimental results. During the impact process, the overall structural design of the equipment enables the cantilever beam 4 to act on the sample at a specified impact angle and impact speed. The impact force is transmitted to the sample through the impact head 5, causing the material to deform or be damaged, thereby evaluating its impact resistance.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A cantilever beam impact tester suitable for plastic materials, comprising a base, characterized in that: The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel is that the interlocking structure is in the interlocking structure and the interlocking structure is fixedly mounted on the base, and the base has a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

2. The cantilever beam impact tester for plastic materials according to claim 1, characterized in that: A positioning groove is provided inside the fixed pressing block, and a positioning block is fixedly installed on the side of the movable pressing block. The positioning block is slidably connected inside the positioning groove.

3. The cantilever beam impact testing device for plastic materials according to claim 1, characterized in that: The side surface of the movable pressing block is rotatably connected with a second screw rod, and the second screw rod is threadedly connected inside the shell.

4. The cantilever beam impact testing device for plastic materials according to claim 1, characterized in that: There are two groups of elastic blocks, and the two groups of elastic blocks are symmetrically distributed on both sides of the fixing seat.

5. The cantilever beam impact testing device for plastic materials according to claim 1, characterized in that: A sliding rod is fixedly installed on the surface of the push plate, a connecting plate is fixedly installed on the end of the sliding rod, a circular hole is opened on the surface of the connecting plate, and the first screw is rotatably connected inside the circular hole.

6. The cantilever beam impact testing device for plastic materials according to claim 1, characterized in that: The interior of the hollow rod is slidably connected to an adjusting rod, the shell is installed on the top of the adjusting rod, a plug hole is opened on the surface of the hollow rod, a through hole is opened on the surface of the adjusting rod, and fasteners are fixedly installed inside the plug hole and the through hole.

7. The Izod beam impact testing device for plastic materials according to claim 6, characterized in that: The through holes are distributed at equal intervals on the surface of the adjusting rod, and the diameters of the insertion holes and the through holes are the same.

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