A spring force testing device

Abstract

This utility model relates to the field of spring force testing technology, and more particularly to a spring force testing device. The utility model provides such a spring force testing device, including a support frame, a connecting plate, limiting rings, a motor, lead screws, guide rods, and a movable plate. The connecting plate is fixedly connected to the bottom of the support frame, and two limiting rings are fixedly connected to the top of the connecting plate. Two motors are mounted on the top of the support frame. Two lead screws are rotatably arranged inside the support frame, and the output shafts of the motors are connected to the lead screws via couplings. Two guide rods are fixedly connected inside the support frame, and a movable plate is threaded onto the lead screws, sliding on the guide rods. By placing springs of different coil numbers or specifications in the limiting rings and applying the same compression displacement, their corresponding spring force can be measured, thereby comparing the performance parameters such as the elastic coefficient (stiffness) of different springs, facilitating performance analysis and quality comparison.

Description

Technical Field

[0001] This utility model relates to the field of spring force testing technology, and in particular to a spring force testing device. Background Technology

[0002] Spring force testing is a testing process used to evaluate the mechanical properties of springs. Its main purpose is to measure the elastic characteristics of springs when they are subjected to force (compression, tension, or torsion) to determine whether they meet design requirements or relevant quality standards.

[0003] Patent publication number CN222460898U discloses a spring force testing device for spring production, including a base. A sliding groove is provided through the top of the base, and a placement platform is fixedly installed on the top of the base. A driving assembly is provided at the bottom of the base, and a first screw is mounted on the bottom of the base via the driving assembly. A mounting plate is rotatably connected to the surface of the first screw, and the mounting plate is fixedly connected to the base. A moving rod is threadedly connected to the surface of the first screw. Although the above patent can effectively position springs of different sizes through the cooperation of the placement platform and the limiting structure, preventing the springs from shifting or tilting during compression, thus ensuring the stability and accuracy of the test, this device is a single-station design, capable of testing only one spring at a time. If it is necessary to compare the elastic coefficient (stiffness) and other performance parameters of different springs (such as different coil numbers, materials, or diameters), the springs must be replaced sequentially and the testing process repeated. This makes synchronous comparison or rapid continuous comparison impossible, resulting in low testing efficiency and difficulty in intuitively judging performance differences, which is detrimental to rapid quality comparison and batch analysis on the production line.

[0004] Therefore, a spring force testing device that facilitates performance analysis and quality comparison is needed. Utility Model Content

[0005] To overcome the shortcomings of existing patents which are designed for single-station operation and can only test one spring at a time, and which require replacing springs and repeating the testing process sequentially to compare the elastic coefficient (stiffness) and other performance parameters of different springs (such as different coil numbers, materials, or diameters), making synchronous or rapid continuous comparison impossible, resulting in low testing efficiency and difficulty in intuitively judging performance differences, thus hindering rapid quality comparison and batch analysis on the production line, this utility model provides a spring elasticity testing device that facilitates performance analysis and quality comparison.

[0006] The technical solution is as follows: A spring force testing device includes a support frame, a connecting plate, a limiting ring, a motor, a lead screw, a guide rod, a moving plate, a pressure sensor, and a receiver. The connecting plate is fixedly connected to the bottom of the support frame, and two limiting rings are fixedly connected to the top of the connecting plate. Two motors are installed on the top of the support frame. Two lead screws are rotatably arranged inside the support frame, and the output shafts of the motors are connected to the lead screws through couplings. Two guide rods are fixedly connected inside the support frame, and a moving plate is threaded onto the lead screw. The moving plate slides on the guide rod, and a pressure sensor is installed on the moving plate. A receiver is arranged on the right side of the support frame, and the receiver is electrically connected to the pressure sensor.

[0007] Preferably, the support frame also includes a stabilizing plate, hinges, a partition plate, and a pull plate. The stabilizing plate is fixedly connected to the front side of the support frame. Two hinges are installed on the left side of the stabilizing plate. The two hinges are hinged together to the partition plate. The pull plate is fixedly connected to the front side of the partition plate.

[0008] Preferably, the system also includes a collection box and a handle. The collection box is placed on the left side of the support frame and is used to collect the springs on the back side of the test. The handles are fixedly connected to both the front and back sides of the collection box.

[0009] Preferably, a contact plate is also included, with the pressure sensor having a contact plate at its bottom.

[0010] Preferably, it also includes a rubber block, with a rubber block provided on the right side of the isolation plate, and the rubber block is in close contact with the stabilizing plate.

[0011] As a preferred option, it also includes an anti-slip sleeve, which is fitted onto the handle.

[0012] Compared with the prior art, the present invention provides a spring force testing device with the following advantages: 1. By placing springs with different numbers of coils or specifications in the limiting ring and applying the same compression displacement, the corresponding elastic force can be measured, and the performance parameters such as the elastic coefficient (stiffness) of different springs can be compared, which facilitates performance analysis and quality comparison.

[0013] 2. After placing the spring, close the isolation plate to cover the test area and prevent the spring from popping out or causing accidents during the test.

[0014] 3. After the test is completed, remove the tested spring from the limit ring and put it into the recycling box for collection and subsequent processing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial sectional view of the support frame, connecting plate, and receiver of this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the motor, moving plate, and pressure sensor components of this utility model.

[0018] Figure 4 This is a partial sectional view of the stabilizing plate, isolation plate, and pull plate components of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the support frame, recycling frame, and handle of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Support frame, 2. Connecting plate, 3. Limiting ring, 4. Motor, 5. Lead screw, 6. Guide rod, 7. Moving plate, 8. Pressure sensor, 9. Receiver, 10. Contact plate, 11. Stabilizing plate, 12. Hinge, 13. Isolation plate, 14. Pull plate, 15. Rubber block, 16. Recycling frame, 17. Handle, 18. Anti-slip sleeve. Detailed Implementation

[0021] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0022] Example 1: A spring force testing device, please refer to... Figures 1-5 The system includes a support frame 1, a connecting plate 2, a limiting ring 3, a motor 4, a lead screw 5, a guide rod 6, a moving plate 7, a pressure sensor 8, and a receiver 9. The connecting plate 2 is fixedly connected to the bottom of the support frame 1, and two limiting rings 3 are fixedly connected to the top of the connecting plate 2. Two motors 4 are installed on the top of the support frame 1. Two lead screws 5 are rotatably installed inside the support frame 1. The output shafts of the motors 4 are connected to the lead screws 5 through couplings. Two guide rods 6 are fixedly connected inside the support frame 1. The moving plate 7 is threaded onto the lead screw 5 and slides on the guide rods 6. The pressure sensor 8 is installed on the moving plate 7. The receiver 9 is located on the right side of the support frame 1 and is electrically connected to the pressure sensor 8. A contact plate 10 is located at the bottom of the pressure sensor 8 to protect the pressure sensor 8 from direct contact with the spring.

[0023] When this device is needed, springs of different coil numbers or specifications are respectively fitted onto the two limiting rings 3, ensuring the springs are placed vertically to prevent displacement or tilting during the test. The motor 4 is started, driving the lead screw 5 to rotate, which in turn moves the moving plate 7 downwards along the guide rod 6. At this time, the pressure sensor 8 contacts the upper end of the spring through the contact plate 10 and applies a continuous compressive force to the spring as the moving plate 7 moves downwards. During the compression process, the pressure sensor 8 detects the pressure value on the spring in real time and transmits the collected signal to the receiver 9. The receiver 9 processes the data. The spring force variation curve or maximum force value is processed and displayed to achieve accurate testing of the spring force performance. By placing springs with different coil numbers or specifications in the limiting ring 3 and applying the same compression displacement, the corresponding spring force can be measured. Then, the performance parameters such as the elastic coefficient (stiffness) of different springs can be compared, which facilitates performance analysis and quality comparison. After the test is completed, the control motor 4 reverses and the lead screw 5 rotates in the opposite direction, driving the moving plate 7 to rise. The spring returns to its original shape under its own elastic action. Then, the tested spring is removed from the limiting ring 3, completing a single test process.

[0024] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 4 It also includes a stabilizing plate 11, hinges 12, a partition plate 13, and a pull plate 14. The stabilizing plate 11 is fixedly connected to the front side of the support frame 1. Two hinges 12 are installed on the left side of the stabilizing plate 11. The two hinges 12 are hinged together to the partition plate 13. The pull plate 14 is fixedly connected to the front side of the partition plate 13. A rubber block 15 is provided on the right side of the partition plate 13. The rubber block 15 is in close contact with the stabilizing plate 11 to increase the friction between the partition plate 13 and the stabilizing plate 11 and prevent the partition plate 13 from rotating accidentally.

[0025] Before the test begins, the isolation plate 13 is flipped open around the hinge 12 using the pull plate 14 to facilitate the placement of the spring; after placement, the isolation plate 13 can be closed to cover the test area and prevent the spring from popping out or causing accidents during the test.

[0026] Please see Figure 1 and Figure 5 It also includes a recycling box 16 and a handle 17. The recycling box 16 is placed on the left side of the support frame 1. The recycling box 16 is used to collect the spring on the back side of the test. The handle 17 is fixedly connected to both the front and back sides of the recycling box 16. The handle 17 is covered with an anti-slip sleeve 18, which makes it easy for the operator to grip and move the recycling box 16, improving the convenience and safety of use.

[0027] Before testing, the recycling box 16 is placed on the left side of the support box 1. After the test is completed, the tested springs are removed from the limiting ring 3 and put into the recycling box 16 for collection, which is convenient for subsequent processing.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spring force testing device, characterized in that, The system includes a support frame (1), a connecting plate (2), a limiting ring (3), a motor (4), a lead screw (5), a guide rod (6), a moving plate (7), a pressure sensor (8), and a receiver (9). The bottom of the support frame (1) is fixedly connected to the connecting plate (2), and the top of the connecting plate (2) is fixedly connected to two limiting rings (3). The top of the support frame (1) is equipped with two motors (4). The support frame (1) is rotatably equipped with two lead screws (5). The output shaft of the motor (4) is connected to the lead screws (5) through a coupling. The support frame (1) is fixedly connected with two guide rods (6). The lead screws (5) are threadedly equipped with a moving plate (7). The moving plate (7) slides on the guide rods (6). The moving plate (7) is equipped with a pressure sensor (8). The right side of the support frame (1) is equipped with a receiver (9), which is electrically connected to the pressure sensor (8).

2. The spring force testing device according to claim 1, characterized in that, It also includes a stabilizing plate (11), hinges (12), a partition plate (13) and a pull plate (14). The stabilizing plate (11) is fixedly connected to the front side of the support frame (1). Two hinges (12) are installed on the left side of the stabilizing plate (11). The two hinges (12) are hinged together to the partition plate (13). The pull plate (14) is fixedly connected to the front side of the partition plate (13).

3. The spring force testing device according to claim 2, characterized in that, It also includes a recycling box (16) and a handle (17). The recycling box (16) is placed on the left side of the support frame (1). The recycling box (16) is used to collect the spring on the back side of the test. The handle (17) is fixedly connected to both the front and back sides of the recycling box (16).

4. The spring force testing device according to claim 3, characterized in that, It also includes a contact plate (10), and the pressure sensor (8) has a contact plate (10) at its bottom.

5. A spring force testing device according to claim 4, characterized in that, It also includes a rubber block (15), which is provided on the right side of the isolation plate (13) and is in close contact with the stabilizing plate (11).

6. The spring force testing device according to claim 5, characterized in that, It also includes an anti-slip sleeve (18), which is fitted onto the handle (17).

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