Spring tension testing machine

Abstract

The utility model relates to the related technical field of spring tension tests, in particular to a spring tension testing machine which comprises a testing machine body, and a testing mechanism is arranged on one side of the surface of the testing machine body. According to the spring tension testing machine, through the arrangement of the testing mechanism, one end of a spring can be placed on the base under the condition that the spring is independent, then the motor is controlled to drive the threaded rod to move, the threaded rod drives the sliding plate to move, the sliding plate drives the stress sensor and the pressure block to move, and at the moment, the pressure block makes contact with the spring and generates pressure on the spring; when components are installed at the two ends of the spring, one end of the spring is firstly placed in the middle of the first installation block, the other end of the spring is placed in the middle of the second installation block, then the first bolt and the second bolt are tightened, at the moment, the spring is fixed, and the second installation block is driven by the sliding plate to move. At the moment, the spring can be stretched or compressed according to needs, and the pressure value is detected through the stress sensor.

Description

Technical Field

[0001] The utility model relates to the technical field related to spring tension test, in particular to a spring tension testing machine. Background Art

[0002] Springs are widely used in various industrial fields and daily life, such as machinery manufacturing, automobiles, aerospace, electronic equipment, etc. The performance of springs has an important impact on the quality, reliability and safety of related equipment and products. With the development of technology and the continuous improvement of product quality requirements, it is necessary to accurately measure and analyze the performance of springs in order to optimize the design and improve the manufacturing process. At the same time, it also provides a scientific basis for quality inspection and acceptance. Therefore, spring tension testing machines are particularly needed.

[0003] However, the existing spring tension testing machines are mostly only capable of testing springs at specific joints and cannot simultaneously test multiple types of springs. Moreover, most of the equipment can only test tension or stress, and the test is single. At the same time, there is a risk of the spring flying out during the test, and most of the testing machines are not equipped with protective measures. Utility Model Content

[0004] The purpose of the utility model is to provide a spring tension testing machine to solve the problem of the existing spring tension testing machines proposed in the above background technology, because most spring tension testing machines can only detect springs of specific joints, and cannot simultaneously detect multiple types of springs, and most devices can only detect tension or stress, and the test is single, and there is a risk of springs flying out during the test, and most testing machines are not provided with protective measures.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spring tension testing machine, comprising a testing machine body, an inner plate is fixedly installed on one side of the surface of the testing machine body, a testing mechanism is arranged on one side of the surface of the testing machine body, and a protective mechanism is arranged on one side of the surface of the testing machine body;

[0006] The testing mechanism includes a base, a slide groove, a slide plate, a motor, a connecting block, a stress sensor, a threaded rod, a first mounting block, a pressure block, a second mounting block, a first bolt and a second bolt. The base is fixedly mounted on one side of the inner surface of the inner plate, a slide groove is provided on one side of the inner surface of the inner plate, a slide plate is mounted on one side of the inner surface of the inner plate, a motor is mounted on one side of the surface of the inner plate, a connecting block is fixedly mounted on one side of the inner surface of the inner plate, a stress sensor is mounted inside the slide plate, a threaded rod is connected to the inner thread of the slide plate, one side of the surface of the connecting block is fixedly connected to the first mounting block, one end of the stress sensor is fixedly connected to the pressure block, one end of the stress sensor is fixedly connected to the second mounting block, the first bolt passes through the inside of the first mounting block, and the second bolt passes through the inside of the second mounting block.

[0007] Preferably, the slide plate is installed inside a slide groove, and the slide groove is provided with two groups.

[0008] Preferably, one end of the threaded rod passes through the inner plate and is fixedly connected to the motor, and one end of the threaded rod is embedded in the inner plate.

[0009] Preferably, the pressure block is installed on one side of the base surface, and the second mounting block is installed on one side of the first mounting block surface.

[0010] Preferably, the protective mechanism includes a protective cover, a circular groove, a fixing ring and a fixing frame. The protective cover is installed on one side of the surface of the inner plate, a circular groove is opened on one side of the surface of the protective cover, a fixing ring is fixedly installed on one side of the surface of the protective cover, and a fixing frame is installed inside the circular groove.

[0011] Preferably, the protective cover is fixedly connected to one side of the surface of the test body, and four groups of circular grooves are provided.

[0012] Preferably, the fixing ring is installed on one side of the surface of the fixing frame, and the fixing frame is welded on one side of the surface of the test body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the spring tension testing machine is provided with a testing mechanism, in the case of a single spring, one end of the spring can be placed on the base, and then the motor is controlled to drive the threaded rod to move, the threaded rod drives the slide plate to move, and then the slide plate drives the stress sensor and the pressure block to move, at which time the pressure block contacts the spring and generates pressure on the spring, and then the stress value of the spring is detected by the stress sensor, and when components are installed at both ends of the spring, first one end of the spring is placed in the middle of the first mounting block, and the other end is placed in the middle of the second mounting block, and then the first bolt and the second bolt are tightened, at which time the spring is fixed, and the second mounting block is driven to move by the slide plate, at which time the spring can be stretched or compressed as needed and the pressure value can be detected by the stress sensor, which can not only meet the spring stress and tension detection, but also can be tested according to springs with different joints, the accordion-type protective cover provided by the protective mechanism can be flexibly extended and retracted, and has a small volume when folded, does not occupy too much space, has good wear resistance and impact resistance, and prevents the risk of spring popping out during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the anatomical structure of the test mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the protective mechanism of the utility model;

[0017] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. test body; 2. inner plate; 3. test mechanism; 301. base; 302. slide groove; 303. slide plate; 304. motor; 305. connecting block; 306. stress sensor; 307. threaded rod; 308. first mounting block; 309. pressure block; 310. second mounting block; 311. first bolt; 312. second bolt; 4. protection mechanism; 401. protection cover; 402. circular groove; 403. fixing ring; 404. fixing frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a spring tension testing machine, comprising a testing machine body 1, an inner plate 2 is fixedly installed on one side of the surface of the testing machine body 1, a testing mechanism 3 is arranged on one side of the surface of the testing machine body 1, and a protective mechanism 4 is arranged on one side of the surface of the testing machine body 1;

[0021] The testing mechanism 3 includes a base 301, a slide 302, a slide plate 303, a motor 304, a connecting block 305, a stress sensor 306, a threaded rod 307, a first mounting block 308, a pressure block 309, a second mounting block 310, a first bolt 311 and a second bolt 312. The base 301 is fixedly mounted on one side of the inner surface of the inner plate 2, a slide 302 is provided on one side of the inner surface of the inner plate 2, a slide plate 303 is mounted on one side of the inner surface of the inner plate 2, a motor 304 is mounted on one side of the surface of the inner plate 2, and the inner plate 2 is fixedly mounted on one side of the inner surface of the inner plate 2. A connecting block 305 is fixedly installed on one side of the inner surface, a stress sensor 306 is installed inside the skateboard 303, a threaded rod 307 is threadedly connected to the inner part of the skateboard 303, a first mounting block 308 is fixedly connected to one side of the surface of the connecting block 305, a pressure block 309 is fixedly connected to one end of the stress sensor 306, a second mounting block 310 is fixedly connected to one end of the stress sensor 306, a first bolt 311 penetrates the interior of the first mounting block 308, and a second bolt 312 penetrates the interior of the second mounting block 310. Through the arrangement of the base 301, the slide 302, the slide plate 303, the motor 304, the connecting block 305, the stress sensor 306, the threaded rod 307, the first mounting block 308, the pressure block 309, the second mounting block 310, the first bolt 311 and the second bolt 312, when testing the spring stress, in the case of a single spring, one end of the spring can be placed on the base 301, and then the motor 304 is controlled, the motor 304 drives the threaded rod 307 to move, the threaded rod 307 drives the slide plate 303 to move inside the slide 302, then the slide plate 303 drives the stress sensor 306 to move, the stress sensor 306 drives the pressure block 309 to move, at this time the pressure block 309 contacts the spring and generates pressure on the spring, and then the stress sensor 306 is used to move. To detect the stress value of the spring, when components are installed at both ends of the spring, first place one end of the spring in the middle of the first mounting block 308 and the other end in the middle of the second mounting block 310, then tighten the first bolt 311 and the second bolt 312. At this time, the spring is fixed, and the threaded rod 307 is driven to move by controlling the motor 304. Then the threaded rod 307 drives the slide plate 303 to move in the slide groove 302, and the second mounting block 310 is driven to move by the slide plate 303. The spring is subjected to the force of the second mounting block 310 and follows the movement. At this time, the spring can be stretched or compressed as needed and the pressure value can be detected by the stress sensor 306. Through the setting of the connecting block 305, the first mounting block 308 is fixedly installed on one side of the inner surface of the inner plate 2.

[0022] Furthermore, the slide plate 303 is installed inside the slide groove 302 , and the slide groove 302 is provided with two groups. Through the setting of the slide groove 302 , the slide plate 303 is limited when the slide plate 303 moves.

[0023] Furthermore, one end of the threaded rod 307 passes through the inner plate 2 and is fixedly connected to the motor 304, and one end of the threaded rod 307 is embedded in the inner plate 2. Through the setting of the threaded rod 307, when the threaded rod 307 moves, the spiral groove on the threaded rod 307 cooperates with the internal thread of the skateboard 303. Under the action of rotational motion and friction force, the rotation of the threaded rod 307 is converted into linear motion of the skateboard 303.

[0024] Furthermore, the pressure block 309 is installed on one side of the surface of the base 301, and the second mounting block 310 is installed on one side of the surface of the first mounting block 308. Through the setting of the second mounting block 310, one end of the spring can be fixed inside the second mounting block 310 by the second bolt 312.

[0025] Furthermore, the protection mechanism 4 includes a protection cover 401, a circular groove 402, a fixing ring 403 and a fixing frame 404. The protection cover 401 is installed on one side of the surface of the inner plate 2, and a circular groove 402 is opened on one side of the surface of the protection cover 401. A fixing ring 403 is fixedly installed on one side of the surface of the protection cover 401, and a fixing frame 404 is installed inside the circular groove 402. Through the arrangement of the protection cover 401, the circular groove 402, the fixing ring 403 and the fixing frame 404, when the spring is subjected to tension detection, the fixing ring 403 is first pulled, and the fixing ring 403 drives the protection cover 401 to move away from the test body 1, and then the fixing ring 403 is put on one end of the fixing frame 404. At this time, the protection cover 401 covers the test body 1 and the inner plate 2 for protection. Through the arrangement of the circular groove 402, the protection cover 401 can be limited to prevent the protection cover 401 from being affected by external shaking and the test.

[0026] Furthermore, the protective cover 401 is fixedly connected to one side of the surface of the test body 1, and four groups of circular grooves 402 are opened. Through the setting of the protective cover 401, the accordion-type protective cover 401 can be flexibly extended and retracted, and has a small volume when folded, does not occupy too much space, and has good wear resistance and impact resistance.

[0027] Furthermore, the fixing ring 403 is installed on one side of the surface of the fixing frame 404, and the fixing frame 404 is welded on one side of the surface of the test body 1. Through the setting of the fixing ring 403, the fixing ring 403 is put on one end of the fixing frame 404 to unfold and fix the protective cover 401.

[0028] Working principle: When testing spring stress, in the case of a single spring, one end of the spring can be placed on the base 301, and then the motor 304 is controlled. The motor 304 drives the threaded rod 307 to move, and the threaded rod 307 drives the slide plate 303 to move inside the slide groove 302. Next, the slide plate 303 drives the stress sensor 306 to move, and the stress sensor 306 drives the pressure block 309 to move. At this time, the pressure block 309 contacts the spring and generates pressure on the spring. Then, the stress value of the spring is detected by the stress sensor 306. When components are installed at both ends of the spring, first place one end of the spring in the middle of the first mounting block 308, and the other end in the middle of the second mounting block 310. Then, tighten the first bolt 311 and the second bolt 312. At this time, the spring is fixed, and the threaded rod 307 is driven to move by controlling the motor 304. The rear threaded rod 307 drives the slide plate 303 to move in the slide groove 302, and drives the second mounting block 310 to move through the slide plate 303. The spring follows the movement under the force of the second mounting block 310. At this time, the spring can be stretched or compressed as needed and the pressure value can be detected by the stress sensor 306. The first mounting block 308 is fixedly installed on one side of the inner surface of the inner plate 2 through the setting of the connecting block 305. When the spring is subjected to tension detection, the fixing ring 403 is first pulled, and the fixing ring 403 drives the protective cover 401 to move away from the test body 1. Then the fixing ring 403 is put on one end of the fixing frame 404. At this time, the protective cover 401 covers the test body 1 and the inner plate 2 for protection. The protective cover 401 can be limited by the setting of the circular groove 402 to prevent the protective cover 401 from being affected by external force shaking during the test.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spring tension testing machine, comprising a testing machine body (1), characterized in that: An inner plate (2) is fixedly mounted on one side of the surface of the test body (1), a testing mechanism (3) is arranged on one side of the surface of the test body (1), and a protective mechanism (4) is arranged on one side of the surface of the test body (1); The testing mechanism (3) comprises a base (301), a slide groove (302), a slide plate (303), a motor (304), a connecting block (305), a stress sensor (306), a threaded rod (307), a first mounting block (308), a pressure block (309), a second mounting block (310), a first bolt (311) and a second bolt (312); the base (301) is fixedly mounted on one side of the inner surface of the inner plate (2); a slide groove (302) is provided on one side of the inner surface of the inner plate (2); a slide plate (303) is mounted on one side of the inner surface of the inner plate (2); a motor (304) is mounted on one side of the surface of the inner plate (2); A connection block (305) is fixedly installed on one side of the inner surface of the inner plate (2); a stress sensor (306) is installed inside the slide plate (303); a threaded rod (307) is threadedly connected to the inside of the slide plate (303); a first mounting block (308) is fixedly connected to one side of the surface of the connection block (305); a pressure block (309) is fixedly connected to one end of the stress sensor (306); a second mounting block (310) is fixedly connected to one end of the stress sensor (306); a first bolt (311) penetrates the inside of the first mounting block (308); and a second bolt (312) penetrates the inside of the second mounting block (310).

2. The spring tension testing machine according to claim 1, characterized in that: The slide plate (303) is installed inside the slide groove (302), and the slide groove (302) is provided with two groups.

3. The spring tension testing machine according to claim 1, characterized in that: One end of the threaded rod (307) passes through the inner plate (2) and is fixedly connected to the motor (304), and one end of the threaded rod (307) is embedded in the inner plate (2).

4. The spring tension testing machine according to claim 1, characterized in that: The pressure block (309) is installed on one side of the surface of the base (301), and the second installation block (310) is installed on one side of the surface of the first installation block (308).

5. The spring tension testing machine according to claim 1, characterized in that: The protective mechanism (4) comprises a protective cover (401), a circular groove (402), a fixing ring (403) and a fixing frame (404); the protective cover (401) is installed on one side of the surface of the inner plate (2); a circular groove (402) is provided on one side of the surface of the protective cover (401); a fixing ring (403) is fixedly installed on one side of the surface of the protective cover (401); and a fixing frame (404) is installed inside the circular groove (402).

6. The spring tension testing machine according to claim 5, characterized in that: The protective cover (401) is fixedly connected to one side of the surface of the test machine body (1), and four groups of circular grooves (402) are provided.

7. The spring tension testing machine according to claim 5, characterized in that: The fixing ring (403) is installed on one side of the surface of the fixing frame (404), and the fixing frame (404) is welded on one side of the surface of the test machine body (1).

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