Numerical control spring fatigue testing machine

Abstract

The utility model discloses a numerical control spring fatigue testing machine which comprises a bottom plate, the top surface of the bottom plate is fixedly connected with an operation box, the top surface of the bottom plate is uniformly and fixedly connected with six first circular rings, each first circular ring is vertically sleeved with a numerical control spring, the upper end of each numerical control spring is sleeved with a second circular ring, and the upper end of each second circular ring is fixedly connected with the operation box. The top end of the operation box is fixedly connected with a top plate, the middle of the top plate is fixedly connected with an electric telescopic rod, the lower portion of the electric telescopic rod penetrates through the top plate and is fixedly connected with a movable plate, and the top end face of each tension meter is vertically and fixedly connected with a connecting rod. The top end face of each connecting rod is fixedly connected with the bottom face of the movable plate. According to the utility model, a plurality of numerical control springs can be pulled at the same time through one electric telescopic rod to carry out a tension fatigue test, and it can be ensured that in the detection process, no damage is caused to surrounding workers in the case of breakage.

Description

Technical Field

[0001] The utility model relates to the technical field of spring fatigue testing, in particular to a numerically controlled spring fatigue testing machine. Background Art

[0002] With the development of the manufacturing industry, springs are widely used as basic components in many fields such as automobiles, aerospace, machinery, and electronic products. These applications have increasingly higher performance requirements for springs, requiring not only sufficient strength and elasticity, but also good fatigue resistance. Therefore, accurately evaluating the fatigue life of springs in long-term use has become crucial.

[0003] Existing CNC spring fatigue testing machines are difficult to perform fatigue tests on multiple CNC springs at the same time, and when a break occurs during the testing process, it may cause harm to surrounding workers. Therefore, it is necessary to provide a CNC spring fatigue testing machine to solve the above technical problems. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In order to overcome the shortcomings of the existing technology, a CNC spring fatigue testing machine is proposed to solve the problem that it is difficult to perform fatigue testing on multiple CNC springs at the same time, and that when fracture occurs during the testing process, it may cause harm to surrounding personnel.

[0006] (2) Technical solution

[0007] The utility model is achieved through the following technical solution: The utility model proposes a CNC spring fatigue testing machine, including a base plate, the base plate is in the shape of a cylindrical plate, the top surface of the base plate is fixedly connected to an operating box, the operating box is cylindrical, the top surface of the base plate is evenly fixedly connected to six first rings, each of the first rings is vertically sleeved with a CNC spring, the upper end of each CNC spring is sleeved with a second ring, and the top end surface of each second ring is fixedly connected to a dynamometer.

[0008] Furthermore, the top of the operating box is fixedly connected to a top plate, which is a cylindrical plate. The middle of the top plate is fixedly connected to an electric telescopic rod, and the lower part of the electric telescopic rod passes through the top plate and is fixedly connected to a movable plate, which is a cylindrical plate. The top surface of each dynamometer is vertically fixedly connected to a connecting rod, and the top surface of each connecting rod is fixedly connected to the bottom surface of the movable plate.

[0009] Furthermore, slide grooves are symmetrically provided at the left and right ends of the operation box, and sliders are fixedly connected to the left and right ends of the movable plate, and each slider slides up and down in the slide groove on the corresponding side.

[0010] Furthermore, a transparent observation cover is installed on the front end surface of the operation box, two hinges are installed at the connection between the left end of the transparent observation cover and the operation box, and a handle is fixedly connected to the right front end surface of the transparent observation cover.

[0011] Furthermore, six scales are provided on the rear wall of the inner cavity of the operation box, and legs are fixedly connected to the left and right ends of the bottom surface of the bottom plate.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model can simultaneously pull multiple CNC springs to perform tension fatigue testing through an electric telescopic rod, and observe the force data of each spring through a dynamometer;

[0015] 2. The utility model provides a transparent observation cover to ensure that during the testing process, if the spring breaks, it will not cause harm to the surrounding staff. At the same time, the fatigue test status of each spring can be clearly observed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the utility model;

[0017] Figure 2 It is a cross-sectional view of the present utility model.

[0018] In the figure: 1. Base plate; 2. Operation box; 3. Transparent observation cover; 4. Hinge; 5. Handle; 6. Top plate; 7. Electric telescopic rod; 8. Support leg; 9. First ring; 10. CNC spring; 11. Second ring; 12. Tension gauge; 13. Connecting rod; 14. Moving plate; 15. Slider; 16. Slide; 17. Scale. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] A CNC spring fatigue testing machine includes a base plate 1, which is a cylindrical plate. An operating box 2 is fixedly connected to the top surface of the base plate 1. The operating box 2 is cylindrical. Six first rings 9 are evenly fixedly connected to the top surface of the base plate 1. A CNC spring 10 is vertically sleeved on each first ring 9. A second ring 11 is sleeved on the upper end of each CNC spring 10. A dynamometer 12 is fixedly connected to the top surface of each second ring 11.

[0021] In this embodiment, the top of the operating box 2 is fixedly connected to a top plate 6, which is a cylindrical plate. The middle of the top plate 6 is fixedly connected to an electric telescopic rod 7. The lower part of the electric telescopic rod 7 passes through the top plate 6 and is fixedly connected to a movable plate 14, which is a cylindrical plate. The top surface of each dynamometer 12 is vertically fixedly connected to a connecting rod 13, and the top surface of each connecting rod 13 is fixedly connected to the bottom surface of the movable plate 14.

[0022] In this embodiment, slide grooves 16 are symmetrically provided at the left and right ends of the operation box 2 , and sliders 15 are fixedly connected to the left and right ends of the movable plate 14 , and each slider 15 slides up and down in the slide groove 16 on the corresponding side.

[0023] In this embodiment, a transparent observation cover 3 is installed on the front face of the operation box 2. Two hinges 4 are installed at the connection between the left end of the transparent observation cover 3 and the operation box 2. A handle 5 is fixedly connected to the right front face of the transparent observation cover 3.

[0024] In this embodiment, six scales 17 are provided on the rear wall of the inner cavity of the operation box 2 , and legs 8 are fixedly connected to the left and right ends of the bottom surface of the base plate 1 .

[0025] Working principle: When in use, open the transparent observation cover 3, hang the multiple CNC springs 10 to be tested between the corresponding first ring 9 and the corresponding second ring 11 respectively, then close the transparent observation cover 3, start the electric telescopic rod 7, and the electric telescopic rod 7 drives the movable plate 14 and the slider 15 to move up and down in the slide groove 16. Under the drive of the electric telescopic rod 7, the CNC spring 10 is repeatedly stretched and compressed to perform a fatigue test. After a certain period of time, the bottom of the CNC spring 10 is separated from the first ring 9, and the length change of the CNC spring 10 under no force is observed through the scale 17.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC spring fatigue testing machine, characterized in that: The invention comprises a base plate (1), wherein the base plate (1) is in the shape of a cylindrical plate, an operating box (2) is fixedly connected to the top surface of the base plate (1), the operating box (2) is in the shape of a cylindrical plate, six first rings (9) are evenly fixedly connected to the top surface of the base plate (1), a numerical control spring (10) is vertically sleeved on each of the first rings (9), a second ring (11) is sleeved on the upper end of each of the numerical control springs (10), and a dynamometer (12) is fixedly connected to the top surface of each of the second rings (11).

2. A CNC spring fatigue testing machine according to claim 1, characterized in that: The top of the operating box (2) is fixedly connected to a top plate (6), which is in the shape of a cylindrical plate. The middle of the top plate (6) is fixedly connected to an electric telescopic rod (7). The lower part of the electric telescopic rod (7) passes through the top plate (6) and is fixedly connected to a movable plate (14), which is in the shape of a cylindrical plate. The top surface of each dynamometer (12) is vertically fixedly connected to a connecting rod (13), and the top surface of each connecting rod (13) is fixedly connected to the bottom surface of the movable plate (14).

3. A CNC spring fatigue testing machine according to claim 2, characterized in that: The left and right ends of the operation box (2) are symmetrically provided with sliding grooves (16), and the left and right ends of the movable plate (14) are fixedly connected with sliders (15), and each slider (15) slides up and down in the sliding groove (16) on the corresponding side.

4. A CNC spring fatigue testing machine according to claim 3, characterized in that: A transparent observation cover (3) is installed on the front end surface of the operation box (2), two hinges (4) are installed at the connection between the left end of the transparent observation cover (3) and the operation box (2), and a handle (5) is fixedly connected to the right front end surface of the transparent observation cover (3).

5. A CNC spring fatigue testing machine according to claim 4, characterized in that: Six scales (17) are provided on the rear wall of the inner cavity of the operation box (2), and legs (8) are fixedly connected to the left and right ends of the bottom surface of the bottom plate (1).

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