Compression performance testing tool convenient to use

Abstract

The utility model discloses a compression performance testing tool convenient to use, which belongs to the technical field of spring testing tools and comprises two groups of fixing frames. The connecting sleeves are rotationally mounted on the front side wall surfaces of the two groups of fixing frames; the test plate is fixedly arranged on the front side wall surfaces of the two groups of connecting sleeves; the threaded columns are in threaded connection with the wall surfaces, far away from each other, of the two groups of testing plates; the hooks are fixedly mounted on the two groups of threaded columns; and the positioning mechanisms are arranged on the close wall surfaces of the two groups of test plates. By arranging the fixing frame, the connecting sleeve, the threaded column and the hook, the operation of stretching and compressing performance of the spring can be achieved, the testing plate does not need to be replaced, the device is convenient to use, the testing efficiency is improved, meanwhile, the overall cost is reduced, by arranging the positioning mechanism, the springs of various inner diameters can be limited, and the testing efficiency is improved. The testing stability and the application range are improved, the positioning of the connecting sleeve can be realized through the arrangement of the limiting mechanism, and the stability of the connecting sleeve is improved.

Description

Technical Field

[0001] This utility model relates to the field of spring testing fixture technology, specifically to a convenient compressive performance testing fixture. Background Technology

[0002] A testing machine is used when conducting spring compression performance tests, and the testing fixture is an indispensable part of the testing machine.

[0003] The existing testing method involves placing the spring on the lower test plate of the testing fixture, then moving the upper test plate downwards to compress and deform the spring, thus completing the test. However, in practical applications, the spring needs to be tested not only for its compression performance but also for its tensile performance. After testing the compression performance, the existing fixture's test plate needs to be replaced with a test plate equipped with hooks. The specific operation involves disassembling the compression performance test plate and then installing the test plate with hooks, which is inconvenient, time-consuming, and detrimental to the overall testing efficiency.

[0004] Based on this, the present invention designs an easy-to-use compression performance testing fixture to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a convenient and easy-to-use compression performance testing fixture.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A user-friendly compression performance testing fixture includes two sets of fixed frames; connecting sleeves rotatably mounted on the front side walls of the two sets of fixed frames; test plates fixedly mounted on the front side walls of the two sets of connecting sleeves; threaded posts threadedly connected to the two sets of test plates on opposite sides of the walls; hooks fixedly mounted on the two sets of threaded posts; positioning mechanisms disposed on the two sets of test plates on adjacent sides of the walls; and limiting mechanisms disposed on the two sets of connecting sleeves.

[0008] Furthermore, mounting grooves are provided on the adjacent walls of both sets of test plates. Each of the two positioning mechanisms includes two mounting sliders slidably connected inside the two sets of mounting grooves; positioning rods fixedly installed on the adjacent walls of the four mounting sliders; limiting rods fixedly installed inside the two sets of mounting grooves; bidirectional threaded rods rotatably installed inside the two sets of mounting grooves; and auxiliary knobs fixedly installed on the outer walls of the two sets of bidirectional threaded rods.

[0009] Furthermore, the front and rear walls of both sets of mounting slides are provided with limiting slots, and the outer walls of the two mounting sliders in the same set that are far apart are slidably connected to the corresponding limiting slots. The two sets of limiting slide rods are slidably connected to the two mounting sliders on the same side. The outer walls of the two sets of bidirectional threaded rods are provided with forward and reverse threaded grooves. The forward and reverse threaded grooves of the two sets of bidirectional threaded rods are respectively threaded to the two mounting sliders on the same side. The outer walls of the two sets of bidirectional threaded rods extend to the front side of the test plate.

[0010] Furthermore, both sets of test plates have mounting slots on their outer walls, and both sets of limiting mechanisms include movable connecting rods that are slidably connected inside the mounting slots. The outer walls of both sets of movable connecting rods have limiting slots. Connecting sliders are slidably connected inside the limiting slots. Mounting sleeves are fixedly installed inside the two sets of fixing frames.

[0011] Furthermore, the front end of the movable link is located inside the mounting groove, the outer walls of both sets of movable links are slidably connected to the same set of connecting sleeves, the two sets of connecting sliders are fixedly connected to the inner wall of the same set of connecting sleeves, and the outer walls of both sets of movable links extend into the interior of the same set of mounting sleeves.

[0012] Furthermore, the limiting mechanism also includes a connecting slide plate slidably connected inside the mounting sleeve; a return spring fixedly installed on the inner walls of the two sets of connecting slide plates and the mounting sleeves of the same set, with limiting grooves provided inside the two sets of mounting sleeves, and two mounting slots provided on the front side walls of the two sets of mounting sleeves, with the two mounting slots of the same set communicating with the inner walls of the limiting grooves of the same set; and a limiting post set on the outer wall of the two sets of moving links.

[0013] Furthermore, both sets of connecting slide plates are adapted to the interior of the mounting sleeves in the same group, both sets of limiting slide grooves are annular grooves connected end to end, the two mounting grooves in the same group are distributed in an equal arc state of 180 degrees, and both sets of limiting posts are slidably connected to the corresponding mounting grooves in the same group.

[0014] Furthermore, the upper sidewalls of both sets of limiting posts are rotatably equipped with ball bearings, and both sets of ball bearings are in rolling contact with the top wall of the corresponding mounting groove. Both sets of limiting posts are rotatably installed on the outer wall of the same side moving link.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. By setting a fixed frame, connecting sleeve, threaded column and hook, the operation of the spring's tension and compression performance can be realized, and the test plate does not need to be replaced, which facilitates the use of the device, improves the testing efficiency, and reduces the overall cost.

[0016] 2. By setting a positioning mechanism, the springs of various inner diameters can be limited, which improves the stability of the test and the scope of application. The positioning mechanism can also be used to position the connecting sleeve, thereby improving the stability of the connecting sleeve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a left perspective view of the entire utility model;

[0019] Figure 2 This is a front view of the entire utility model;

[0020] Figure 3 This is a perspective view of the test board of this utility model;

[0021] Figure 4 This is a sectional perspective view of the fixing frame of this utility model;

[0022] Figure 5 This is a sectional perspective view of the mounting sleeve of this utility model;

[0023] Figure 6 for Figure 4 Enlarged view of point A;

[0024] Figure 7 for Figure 3 Enlarged view of point B.

[0025] The labels in the diagram represent:

[0026] 1. Fixing frame; 2. Connecting sleeve; 3. Test plate; 4. Threaded post; 5. Hook; 6. Positioning mechanism; 61. Mounting groove; 62. Mounting slider; 63. Positioning rod; 64. Limiting slide rod; 65. Bidirectional threaded rod; 66. Auxiliary knob; 7. Limiting mechanism; 71. Mounting through groove; 72. Moving link; 73. Limiting connecting groove; 74. Mounting sleeve; 75. Return spring; 76. Connecting slide plate; 77. Limiting groove; 78. Mounting connecting groove; 79. Connecting slider; 80. Limiting post; 81. Ball bearing. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] Example 1: Please refer to the accompanying drawings in the instruction manual. Figure 1 - Figure 2 A user-friendly compression performance testing fixture includes a fixed frame 1, which has two sets. The upper fixed frame 1 is fixedly mounted on the moving end of the testing machine by bolts, and the lower fixed frame 1 is fixedly mounted on the testing table of the testing machine by bolts, so that the two sets of fixed frames 1 are set in a vertical state. A spring assembly for tensile testing is set on the right side of the fixed frame 1. The spring assembly includes a spring body and two sets of connecting plates. A connecting sleeve 2 is rotatably mounted on the front wall of the two sets of fixed frames 1. A test plate 3 is fixedly mounted on the front wall of the two sets of connecting sleeves 2. Threaded posts 4 are threadedly connected to the two sets of test plates 3 on the walls away from each other. Hooks 5 are fixedly mounted on the two sets of threaded posts 4. A positioning mechanism 6 is set on the walls of the two sets of test plates 3 close to each other. A limiting mechanism 7 is set on the two sets of connecting sleeves 2.

[0031] In practical use, after placing the spring on the upper side wall of the lower test plate 3, the moving end on the testing machine moves downward, and the two sets of test plates 3 approach each other and compress the spring to test its compression performance. When a tensile test is required, the spring and the two sets of connecting plates can be connected to form a spring assembly. Then, the two sets of connecting sleeves 2 are rotated 180 degrees, and the two sets of hooks 5 rotate and finally position themselves between the two sets of test plates 3. Then, the two sets of connecting plates on the spring assembly are hung on the two sets of hooks 5 respectively, controlling the two sets of test plates 3 to move away from each other, thus realizing the tensile test of the spring. It is not necessary to replace the test plates 3, which is more convenient to use, improves the testing speed, reduces the number of test plates 3 used, and reduces the overall cost.

[0032] Example 2: Based on Example 1, please refer to the accompanying drawings in the specification. Figure 1 - Figure 7Each of the two sets of test plates 3 has a mounting groove 61 on its adjacent wall surface. Each of the two sets of positioning mechanisms 6 includes two mounting sliders 62 that are slidably connected inside the two sets of mounting grooves 61. Limiting slots are provided on the front and rear walls of the two sets of mounting grooves 61. The outer walls of the two mounting sliders 62 in the same set that are far apart are slidably connected to the corresponding limiting slots. Positioning rods 63 are fixedly installed on the adjacent walls of the four mounting sliders 62. Limiting rods 64 are fixedly installed inside the two sets of mounting grooves 61. The two sets of limiting rods 64 are slidably connected to the two mounting sliders 62 on the same side. Bidirectional threaded rods 65 are rotatably installed inside the two sets of mounting grooves 61. The outer walls of the two sets of bidirectional threaded rods 65 are provided with forward and reverse threaded grooves. The forward and reverse threaded grooves of the two sets of bidirectional threaded rods 65 are respectively threaded to the two mounting sliders 62 on the same side. The outer walls of the two sets of bidirectional threaded rods 65 extend to the front side of the test plate 3. Auxiliary knobs 66 are fixedly installed on the outer walls of the two sets of bidirectional threaded rods 65.

[0033] Both sets of test plates 3 have mounting slots 71 on their outer walls. Both sets of limiting mechanisms 7 include movable connecting rods 72 that are slidably connected inside the mounting slots 71. The front end of the movable connecting rods 72 is located inside the mounting slots 71. The outer walls of both sets of movable connecting rods 72 are slidably connected to the connecting sleeves 2 of the same group. Both sets of movable connecting rods 72 have limiting connecting slots 73 on their outer walls. Connecting sliders 79 are slidably connected inside the limiting connecting slots 73 of the two groups. Both sets of connecting sliders 79 are fixedly connected to the inner walls of the connecting sleeves 2 of the same group. Mounting sleeves 74 are fixedly installed inside the two sets of fixing frames 1. The outer walls of both sets of movable connecting rods 72 extend into the interior of the mounting sleeves 74 of the same group.

[0034] The limiting mechanism 7 also includes a connecting slide plate 76 slidably connected inside the mounting sleeve 74, with both sets of connecting slide plates 76 adapted to the interior of the mounting sleeve 74 in the same group; a return spring 75 fixedly installed on the inner wall of the two sets of connecting slide plates 76 and the mounting sleeve 74 in the same group, with limiting grooves 77 provided inside the two sets of mounting sleeves 74, both sets of limiting grooves 77 being annular grooves connected end to end; two mounting connecting grooves 78 provided on the front side wall of the two sets of mounting sleeves 74, both sets of mounting connecting grooves 78 communicating with the interior of the limiting grooves 77 in the same group, both sets of mounting connecting grooves 78 being distributed in an equal arc state of 180 degrees; and upper limit posts 80 set on the outer wall of the two sets of moving connecting rods 72, with both sets of limiting posts 80 slidably connected to the corresponding mounting connecting grooves 78 in the same group.

[0035] Both sets of limit posts 80 have ball bearings 81 rotatably mounted on their upper side walls. Both sets of ball bearings 81 roll in contact with the top wall of their corresponding mounting grooves 78. Both sets of limit posts 80 are rotatably mounted on the outer wall of the same side moving link 72.

[0036] In practical use, before performing a spring compression test, the lower end of the spring can be fitted onto the outer wall of the two lower positioning rods 63, and the upper end of the spring can be fitted onto the outer wall of the two upper positioning rods 63. The four positioning rods 63 limit the spring, preventing spring deviation during compression and improving test stability. Additionally, rotating the auxiliary knob 66 ​​forward rotates the bidirectional threaded rod 65. Under the limitation of the mounting groove 61 and the limiting slide rod 64, the two mounting sliders 62 move away from each other, and the two positioning rods 63 move away from each other, increasing the distance between the two positioning rods 63. Conversely, rotating the bidirectional threaded rod 65 in the opposite direction reduces the distance between the two positioning rods 63. This method is suitable for springs with various inner diameters, expanding its applicability. Before rotating the connecting sleeve 2, the moving connecting rod 72 can be pressed backward. The connecting slider 79 slides forward relative to the moving connecting rod 72 along the inside of the limiting connecting groove 73, and the limiting post 80 moves backward along the inside of the mounting groove 78. The connecting slide plate 76 is squeezed backward by the moving connecting rod 72. The spring 75 will be compressed until the moving link 72 can no longer move. At this time, the limiting post 80 is located inside the limiting slide groove 77, allowing the connecting sleeve 2 to rotate 180 degrees. The limiting post 80 corresponds to another mounting slot 78 in the same group. When the moving link 72 is released, the return spring 75 extends, moving the connecting slide plate 76 forward. The moving link 72 is compressed and moves forward, and the limiting post 80 is engaged inside the corresponding mounting slot 78. The mounting slot 78 and the limiting post 80 control the moving link 72. The moving link 72, through the limiting groove 73 and the connecting slider 79, limits the connecting sleeve 2, which improves the stability of the connecting sleeve 2 during operation. In addition, when the limiting post 80 moves inside the mounting groove 78 and the limiting slide groove 77, the ball 81 can reduce the frictional resistance between them, making the operation smoother. Furthermore, during the rotation of the connecting sleeve 2, since the limiting slide groove 77 limits the limiting post 80, it is not necessary to keep manually pressing the moving link 72, which facilitates the use of the device.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A user-friendly compression performance testing fixture, comprising two sets of fixing frames (1), characterized in that: It also includes connecting sleeves (2) rotatably mounted on the front wall of the two sets of fixed frames (1); test plates (3) fixedly mounted on the front wall of the two sets of connecting sleeves (2); threaded posts (4) threadedly connected to the two sets of test plates (3) on opposite walls; hooks (5) fixedly mounted on the two sets of threaded posts (4); positioning mechanisms (6) set on the walls close to each other on the two sets of test plates (3); and limiting mechanisms (7) set on the two sets of connecting sleeves (2).

2. The easy-to-use compression performance testing fixture according to claim 1, characterized in that, The two sets of test plates (3) are provided with mounting grooves (61) on the adjacent wall surfaces. The two sets of positioning mechanisms (6) include two mounting sliders (62) that are slidably connected inside the two sets of mounting grooves (61); positioning rods (63) that are fixedly installed on the adjacent wall surfaces of the four mounting sliders (62); limiting rods (64) that are fixedly installed inside the two sets of mounting grooves (61); bidirectional threaded rods (65) that are rotatably installed inside the two sets of mounting grooves (61); and auxiliary knobs (66) that are fixedly installed on the outer walls of the two sets of bidirectional threaded rods (65).

3. The easy-to-use compression performance testing fixture according to claim 2, characterized in that, Both sets of mounting slides (61) have limit slots on their front and rear walls. The outer walls of the two mounting sliders (62) in the same set that are far apart are slidably connected to the corresponding limit slots. Both sets of limit slides (64) are slidably connected to the two mounting sliders (62) on the same side. Both sets of bidirectional threaded rods (65) have forward and reverse threaded grooves on their outer walls. The forward and reverse threaded grooves of both sets of bidirectional threaded rods (65) are threadedly connected to the two mounting sliders (62) on the same side. The outer walls of both sets of bidirectional threaded rods (65) extend to the front side of the test plate (3).

4. The easy-to-use compression performance testing fixture according to claim 1, characterized in that, Both sets of test plates (3) have an installation through groove (71) on their outer walls. Both sets of limiting mechanisms (7) include a moving link (72) that is slidably connected inside the installation through groove (71). Both sets of moving links (72) have a limiting groove (73) on their outer walls. A connecting slider (79) is slidably connected inside the two sets of limiting grooves (73). An installation sleeve (74) is fixedly installed inside the two sets of fixing frames (1).

5. The easy-to-use compression performance testing fixture according to claim 4, characterized in that, The front end of the movable link (72) is located inside the mounting through groove (71). The outer walls of both sets of movable links (72) are slidably connected to the connecting sleeve (2) of the same group. The two sets of connecting sliders (79) are fixedly connected to the inner wall of the connecting sleeve (2) of the same group. The outer walls of both sets of movable links (72) extend into the interior of the mounting sleeve (74) of the same group.

6. The easy-to-use compression performance testing fixture according to claim 5, characterized in that, The limiting mechanism (7) also includes a connecting slide plate (76) slidably connected inside the mounting sleeve (74); a return spring (75) fixedly installed on the inner wall of the two sets of connecting slide plates (76) and the same set of mounting sleeves (74) close to each other; a limiting slide groove (77) is opened inside the two sets of mounting sleeves (74); two mounting grooves (78) are opened on the front side wall of the two sets of mounting sleeves (74); the two mounting grooves (78) in the same set are interconnected with the inner wall of the limiting slide groove (77) in the same set; and a limiting post (80) is set on the outer wall of the two sets of moving links (72).

7. The easy-to-use compression performance testing fixture according to claim 6, characterized in that, Both sets of connecting slide plates (76) are adapted to the interior of the mounting sleeve (74) of the same group. Both sets of limiting slide grooves (77) are annular grooves connected end to end. Both sets of mounting connecting grooves (78) of the same group are distributed in an equal arc state of 180 degrees. Both sets of limiting posts (80) are slidably connected to the corresponding mounting connecting grooves (78) of the same group.

8. The easy-to-use compression performance testing fixture according to claim 7, characterized in that, Both sets of limiting posts (80) have ball bearings (81) rotatably mounted on the upper side wall. Both sets of ball bearings (81) roll in contact with the top wall of the corresponding mounting groove (78). Both sets of limiting posts (80) are rotatably mounted on the outer wall of the same side moving link (72).

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