Tensile test device for spring

Abstract

The utility model relates to the technical field of test devices, and discloses a spring tensile test device, which comprises a base, wherein a tensile test mechanism main body is arranged at the top of the base; the vertical plate is arranged at the top of the tensile test mechanism main body; the spring is arranged on the inner side of the vertical plate; a clamping assembly is arranged on the vertical plate and comprises a threaded rod, and one end of the threaded rod penetrates through the vertical plate and is in threaded connection with the vertical plate; the ring body is rotationally arranged on the outer side wall of the threaded rod; according to the test device, the clamping assembly controls the movement of the ring body through the rotation of the threaded rod, so that the connecting rod is pulled to rotate, and the sliding block slides in the sliding groove to drive the clamping plate to gather together to clamp one end of the spring. And compared with an existing device, deformation can be reduced during clamping and fixing. According to the test device, on the basis of clamping, the bolts can be rotated through the fixing assemblies to drive the clamping blocks to move in the groove bodies to further clamp the springs, and therefore fixing is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a spring tensile testing device. Background Art

[0002] A spring is a mechanical component that utilizes elasticity to function. Parts made of elastic materials deform under external forces and return to their original shape when the force is removed. Spring fatigue testing devices primarily perform fatigue tests on springs by compressing or stretching them to determine their fatigue characteristics. This allows for the proper use of the appropriate spring in different applications. Therefore, spring fatigue testing devices have become essential equipment for spring manufacturers and users.

[0003] Chinese utility model CN210487480U is a spring tensile test device. It designs a spring fixing clamping mechanism. Its principle is to use a threaded rod to make two sliders close together, thereby driving the arc-shaped clamping block to clamp one end of the spring at the same time. Finally, the tensile test device is used for testing.

[0004] However, existing devices can only hold two arc-shaped clamps together. This can cause deformation at one end of the spring, thus affecting test data. To address this issue, a clamping mechanism has been designed to minimize deformation and ensure test accuracy. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a spring tensile test device, which has the advantage of reducing the deformation of the spring to avoid affecting the test data, and solves the problem that the existing device causes spring deformation when clamping.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spring tensile test device, comprising: a base with a tensile test mechanism body arranged on the top; a vertical plate arranged on the top of the tensile test mechanism body; a spring arranged on the inner side of the vertical plate; a clamping assembly arranged on the vertical plate, and the clamping assembly comprising: one end of a threaded rod passes through the vertical plate and is threadedly connected to the vertical plate; a ring body is rotatably arranged on the outer side wall of the threaded rod; a connecting rod is arranged on the outer side wall of the ring body and is rotatably connected to the ring body; a slide groove is opened on the vertical plate; a slider is slidably arranged inside the slide groove and is rotatably connected to the other end of the connecting rod; a splint is arranged on one side of the slider.

[0009] In some embodiments, the sliding grooves and the sliding blocks are symmetrically arranged in four groups and are designed in a cross shape.

[0010] In some embodiments, the clamping assembly further includes: a torsion disposed at one end of the threaded rod.

[0011] In some embodiments, the clamping assembly further includes: a baffle disposed at the other end of the threaded rod.

[0012] In some embodiments, the clamping assembly further includes: a cone disposed on one side of the baffle.

[0013] In some embodiments, a fixing assembly is provided on the splint, and the fixing assembly includes: a groove body opened on the inner side of the splint; one end of the bolt is inserted into the interior of the groove body and is threadedly connected to the splint; a clamping block is provided inside the groove body and is rotatably connected to the bolt.

[0014] In some embodiments, the fixing assembly further includes: an arc-shaped groove opened on one side of the clamping block.

[0015] In some embodiments, the inner side wall of the groove body is in contact with the outer side wall of the clamping block.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a spring tensile testing device with the following features:

[0018] Beneficial effects:

[0019] 1. This test device uses a clamping assembly to control the movement of the ring body by rotating a threaded rod, thereby pulling the connecting rod to rotate, causing the slider to slide within the slide slot, driving the clamping plates to converge and clamp one end of the spring. Compared with existing devices, this can reduce deformation during clamping.

[0020] 2. The test device can fix the spring more firmly by rotating the bolt to move the clamping block inside the groove body on the basis of clamping, thereby making the fixation more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a structural diagram of the vertical plate of the utility model;

[0023] Figure 3 This is a structural diagram of the vertical plate of the utility model from the second perspective;

[0024] Figure 4 This is a schematic structural diagram of the plywood of the present utility model.

[0025] In the figure: 11, base; 12, tensile test mechanism body; 13, vertical plate; 14, spring;

[0026] 2. Clamping assembly; 21. Threaded rod; 22. Ring; 23. Connecting rod; 24. Slide; 25. Slider; 26. Clamp; 27. Twist; 28. Baffle; 29. ​​Cone;

[0027] 3. Fixing assembly; 31. Trough body; 32. Bolt; 33. Clamping block; 34. Arc groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0030] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] A spring is a mechanical component that utilizes elasticity to function. Parts made of elastic materials deform under external forces and return to their original shape when the force is removed. Spring fatigue testing devices primarily perform fatigue tests on springs by compressing or stretching them to determine their fatigue characteristics. This allows for the proper use of the appropriate spring in different applications. Therefore, spring fatigue testing devices have become essential equipment for spring manufacturers and users.

[0033] In related technologies, a threaded rod is used to bring two sliders closer together, which in turn drives a curved clamping block to clamp one end of the spring. Finally, a tensile test device is used for testing. However, existing devices can only hold two curved clamping blocks in close proximity. This can cause deformation of one end of the spring, thus affecting test data.

[0034] In order to solve the problems in the related technology to a certain extent, the embodiment of the present application provides a spring tensile test device. When the spring 14 needs to be subjected to a tensile test, the two ends of the spring 14 need to be fixed to the vertical plate 13 first. At this time, the two ends of the spring 14 can be tightly attached to the vertical plate 13, and then the threaded rod 21 is rotated to connect with the vertical plate 13 during rotation, thereby driving the ring body 22 to move to one side. When the ring body 22 moves, it will drive the connecting rod 23 to rotate, so that one end of the connecting rod 23 pulls the slider 25 to slide inside the slide groove 24. At the same time, the slider 25 drives the clamping plate 26 to gather to clamp one end of the spring 14. According to the above method, the other end of the spring 14 is also connected to the vertical plate 13, and then the tensile test mechanism body 12 is used to control the two vertical plates 13 to move away from each other, and at the same time, the spring 14 is stretched to detect the tensile data of the spring 14.

[0035] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0036] An embodiment of the present application provides a spring tensile testing device, comprising: a base 11 with a tensile testing mechanism body 12 arranged on the top; a vertical plate 13 arranged on the top of the tensile testing mechanism body 12; a spring 14 arranged on the inner side of the vertical plate 13; a clamping assembly 2 is arranged on the vertical plate 13, and the clamping assembly 2 comprises: one end of a threaded rod 21 passes through the vertical plate 13 and is threadedly connected to the vertical plate 13; a ring body 22 is rotatably arranged on the outer wall of the threaded rod 21; a connecting rod 23 is arranged on the outer wall of the ring body 22 and is rotatably connected to the ring body 22; a slide groove 24 is opened on the vertical plate 13; a slider 25 is slidably arranged inside the slide groove 24 and is rotatably connected to the other end of the connecting rod 23; a splint 26 is arranged on one side of the slider 25.

[0037] Specifically, the model of the tensile testing machine body 12 is FPA-500, and the principle is to fix the elastic material or spring on the test fixture, apply tensile force to the test material, and when the material deforms to the maximum, the system detects the change of the force, thereby recording the maximum elastic parameters of the test material. Specifically, the tensile testing device calculates the elastic parameters of the spring, such as tensile stress, tensile strength, and elastic modulus, by measuring the force value and deformation of the spring during the stretching process.

[0038] When the tensile test of the spring 14 is needed during use, the two ends of the spring 14 need to be fixed to the vertical plate 13 first. At this time, the two ends of the spring 14 can be tightly attached to the vertical plate 13, and then the threaded rod 21 is rotated and connected with the vertical plate 13 during rotation, thereby moving the ring body 22 to one side. When the ring body 22 moves, it will drive the connecting rod 23 to rotate, so that one end of the connecting rod 23 pulls the sliding block 25 to slide in the sliding groove 24, and at the same time the sliding block 25 drives the clamping plate 26 to gather to clamp one end of the spring 14. According to the above method, the other end of the spring 14 is also connected with the vertical plate 13, and then the tensile testing machine body 12 is used to control the two vertical plates 13 to move away from each other, and at the same time the spring 14 is stretched to detect the tensile data of the spring 14.

[0039] In some embodiments, the sliding groove 24 and the sliding block 25 are symmetrically arranged in four groups and designed in a cross shape.

[0040] When used, the four groups of cross-shaped design are evenly distributed to clamp the four directions of one end of the spring 14, which can reduce the degree of deformation of the spring 14 during clamping, thereby reducing the influence on the test data.

[0041] In some embodiments, the clamping assembly 2 further comprises a rotating knob 27 arranged at one end of the threaded rod 21.

[0042] When used, the rotating knob 27 is designed to facilitate the rotation of the threaded rod 21, and the grooves on the rotating knob 27 can increase the friction during rotation.

[0043] In some embodiments, the clamping assembly 2 further comprises a baffle 28 arranged at the other end of the threaded rod 21.

[0044] When used, the design of the baffle 28 can avoid disengagement with the vertical plate 13 during rotation of the threaded rod 21.

[0045] In some embodiments, the clamping assembly 2 further comprises a cone 29 arranged on one side of the baffle 28.

[0046] When used, the design of the cone 29 makes it easier to insert into the inside of the spring 14.

[0047] In some embodiments, the clamping plate 26 is provided with a fixing assembly 3, the fixing assembly 3 comprises: a groove 31 is opened in the inner side of the clamping plate 26; a bolt 32 is inserted into the interior of the groove 31 and is threadedly connected with the clamping plate 26; a clamping block 33 is arranged in the interior of the groove 31 and is rotationally connected with the bolt 32.

[0048] In use, after the clamping plate 26 clamps one end of the spring 14, the bolt 32 can be rotated, so that the bolt 32 is threadedly connected with the clamping plate 26 and is pulled out from the interior of the groove 31, while driving the clamping block 33 to move, so as to further fix one end of the spring 14 and stabilize the position of the spring 14.

[0049] In some embodiments, the fixing assembly 3 further comprises: an arc-shaped groove 34 is opened in one side of the clamping block 33.

[0050] In use, the design of the arc-shaped groove 34 can better fit when contacting the outer side wall of the spring 14.

[0051] In some embodiments, the inner side wall of the groove 31 fits the outer side wall of the clamping block 33.

[0052] In use, the design of fitting can better limit the stable movement of the clamping block 33.

[0053] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", "some examples" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0054] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection required by the present application.

[0055] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A spring tensile testing device comprising: A base (11) with a tensile testing mechanism body (12) disposed on the top thereof; A vertical plate (13) is arranged on the top of the tensile testing mechanism body (12); A spring (14) is arranged on the inner side of the vertical plate (13); The invention is characterized in that: a clamping assembly (2) is provided on the vertical plate (13), and the clamping assembly (2) comprises: A threaded rod (21), one end of which passes through the vertical plate (13) and is threadedly connected to the vertical plate (13); a ring body (22) rotatably disposed on the outer side wall of the threaded rod (21); a connecting rod (23) disposed on the outer side wall of the ring body (22) and rotatably connected to the ring body (22); A chute (24) is provided on the vertical plate (13); A slider (25) is slidably disposed inside the slide groove (24) and is rotationally connected to the other end of the connecting rod (23); A clamping plate (26) is arranged on one side of the slider (25).

2. A spring tensile testing device according to claim 1, characterized in that: The chute (24) and the slider (25) are symmetrically arranged in four groups and are designed in a cross shape.

3. A spring tensile testing device according to claim 1, characterized in that: The clamping assembly (2) further comprises: A twist knob (27) is provided at one end of the threaded rod (21).

4. A spring tensile testing device according to claim 1, characterized in that: The clamping assembly (2) further comprises: A baffle (28) is provided at the other end of the threaded rod (21).

5. A spring tensile testing device according to claim 4, characterized in that: The clamping assembly (2) further comprises: The cone (29) is arranged on one side of the baffle (28).

6. A spring tensile testing device according to claim 1, characterized in that: A fixing assembly (3) is provided on the clamping plate (26), and the fixing assembly (3) comprises: A groove body (31) is provided on the inner side of the clamping plate (26); A bolt (32), one end of which is inserted into the interior of the groove body (31) and is threadedly connected to the clamping plate (26); The clamping block (33) is arranged inside the trough body (31) and is rotatably connected to the bolt (32).

7. A spring tensile testing device according to claim 6, characterized in that: The fixing assembly (3) further comprises: An arc-shaped groove (34) is provided on one side of the clamping block (33).

8. A spring tensile testing device according to claim 6, characterized in that: The inner side wall of the trough body (31) is in contact with the outer side wall of the clamping block (33).

Images