Spring pressure testing device
By designing the spring pressure test device for positioning components and testing components, the problem of twisting of the middle section of the spring affecting the test accuracy is solved, and the stable and efficient detection of the spring pressure test is achieved.
Patent Information
- Application Number
- CN202422501683.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In existing spring pressure tests, the middle section of the spring is easily twisted, affecting the accuracy of the test results.
A spring pressure testing device is designed, including positioning components and test components. It uses positioning plates, positioning shafts, positioning pressure plates, pressure sensors and test motors to drive the pressure plate to press the spring through the test motor drive test screws. Combining the positioning components and slide rail structure, it ensures the stability and accuracy of the spring during the test process.
The accuracy and stability of the spring pressure test is achieved, the twisting of the middle section of the spring is avoided, and the accuracy and efficiency of the test are improved.
Smart Images
Figure CN223154499U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of spring pressure testing, in particular to a spring pressure testing device. Background Art
[0002] A spring is a mechanical part made of elastic material. It can store and release energy and is commonly used for absorbing shock, storing energy, controlling motion, etc. According to different shapes, uses and manufacturing methods, springs can be divided into many types, including helical springs, flat springs, ring springs and butterfly springs, etc. The more common helical springs include Yasuo springs, drawstring springs and torsion springs, etc.
[0003] In the prior art, compression springs usually need to be subjected to pressure tests before use to ensure that they meet the design requirements and safety standards. During the test, generally, both ends of the Yasuo spring need to be connected, and then the compression spring is compressed. However, during the test, the middle of the spring is in a hollow state, and the middle section of the spring is prone to distortion due to force, which greatly affects the accuracy of the test results during the compression test of the spring, and is very inconvenient. Summary of the Invention
[0004] The purpose of the utility model is to provide a spring pressure testing device with a clever structure, which can accurately and stably test the force of the spring, ensure the accuracy and efficiency of the test, and is convenient and practical.
[0005] The technical solution for achieving the purpose of the present utility model is as follows: The present utility model has a test platform; a positioning component for installing a spring and a test component for applying pressure to the spring on the positioning component are provided on the test platform. The positioning component includes a positioning plate fixed on the test platform, a positioning shaft provided on the positioning plate, a positioning pressure plate coaxially arranged with the positioning shaft and slidably connected to the positioning plate along the axis of the positioning shaft, a pressure sensor arranged between the positioning pressure plate and the positioning plate, and a recorder fixed on the test platform and electrically connected to the pressure sensor to display the pressure indication. The test component includes a test motor fixed on the side of the test platform, a test screw rod fixed on the output end of the test motor, a test bracket slidably connected to the test platform, and pressure plates oppositely arranged on the test bracket and capable of applying pressure to the spring. The test bracket includes oppositely arranged side brackets and connecting rods connecting each side bracket. The side brackets are Z-shaped, and each pressure plate is arranged at one end of each side bracket. The connecting rod is perpendicularly arranged with each side bracket. The connecting rod is arranged at one end of each side bracket away from the pressure plate. A test screw hole adapted to the test screw rod is provided on the connecting rod. The test bracket is slidably arranged on the test platform through the driving of the test motor on the test screw rod and the cooperation of the test screw rod and the test screw hole. Each pressure plate applies pressure to the spring through the driving of the test motor on the test bracket. The recorder displays the compression of the spring through the pressing of the spring against the positioning pressure plate and the pressing of the positioning pressure plate against the pressure sensor.
[0006] Further, bottom sliders are provided on each side bracket, and opposite bottom slide rails are provided on the test platform. The extending direction of the bottom slide rails is parallel to the axis of the positioning shaft. The side brackets are slidably connected to the test platform through the cooperation of the bottom sliders and the bottom slide rails and the driving of the test motor.
[0007] Further, the cross-section of each pressure plate is L-shaped. The pressure plate includes a connecting plate portion and a limiting plate portion perpendicularly arranged with the connecting plate portion. Adjusting grooves are provided on each side bracket, and the adjusting grooves on each side bracket are oppositely arranged. The connecting plate portion is slidably connected in the adjusting groove. The extending direction of the adjusting groove is perpendicular to the positioning shaft. A plurality of connecting through holes are evenly arranged on the connecting plate portion along the extending direction of the connecting plate portion. A locking groove is provided on the end face of the side bracket, and the locking groove extends from the end face of the side bracket to the adjusting groove. A locking hole corresponding to the locking groove is also provided in the adjusting groove. The locking groove and the locking hole can communicate with any one of the connecting through holes. A locking pin is slidably arranged in the locking groove. One end of the locking pin is located outside the side bracket, and the other end of the locking pin passes through a connecting through hole and any one of the connecting through holes and extends into the locking hole. A return spring is provided in the locking groove, and both ends of the return spring act on the locking groove and the locking pin respectively. The pressure plate is installed on the side bracket through the continuous force applied by the return spring on the locking pin and the cooperation of the locking pin with the connecting through hole and the locking hole.
[0008] Further, a handle is provided at one end of the above-mentioned locking pin away from the locking hole.
[0009] Further, a through hole for the positioning shaft to pass through is provided on the above-mentioned positioning pressure plate. At one end of the positioning pressure plate away from the positioning shaft, a plurality of connecting sliding rods are provided. Each connecting sliding rod is circumferentially distributed on the positioning pressure plate along the axis of the positioning shaft. The extending direction of each connecting sliding rod is parallel to the axis of the positioning shaft. Connecting sliding holes adapted to the respective connecting sliding rods are provided on the positioning plate. The positioning pressure plate is slidably connected to the positioning plate through the cooperation of the respective connecting sliding rods and the connecting sliding holes.
[0010] The utility model has positive effects: (1) By providing a positioning component and a testing component on the testing platform, and through the design of the positioning plate and the positioning shaft on the positioning component, on the one hand, it can support the spring, and on the other hand, it can effectively avoid the problem that the middle part of the spring in the prior art is in a hollow state and deforms. By providing a testing component, the testing screw rod is driven to rotate by the testing motor, and the testing screw rod drives the pressure plate to press against the spring through the threaded fit of the testing screw hole on the testing bracket, which can not only ensure the safety and stability of the spring during the testing process, but also ensure the accuracy of the spring compression detection, which is efficient and practical.
[0011] (2) By providing a bottom slider on the side bracket and a bottom slide rail on the testing platform, the side bracket slides on the testing platform through the cooperation of the bottom slider and the bottom slide rail, thus ensuring the smoothness of the testing bracket during the sliding process. At the same time, by setting the side bracket in a Z shape, it can also limit the reset of the testing bracket after the testing is completed, ensuring the safety and smoothness of the sliding of the testing bracket, which is efficient and convenient.
[0012] (3) By providing an adjustment groove on the side bracket, the connecting plate parts on each pressure plate are slidably arranged in the adjustment groove to adjust the extension amount, so as to be applicable to springs of various different sizes. Through the cooperation of the locking pin and the return spring, and the locking pin and the connecting through hole, the convenience of the pressure plate adjustment and the stability of the connection between the adjusted pressure plate and the side bracket are ensured, which is convenient and practical.
[0013] (4) By providing a handle on the locking pin, it is convenient for personnel to control the locking pin and ensures the convenience of the pressure plate adjustment.
[0014] (5) By providing connecting sliding rods on the positioning pressure plate and corresponding connecting sliding holes on the positioning plate, and through the cooperation of each connecting sliding rod and the connecting sliding hole, the present utility model can not only ensure the stable pressure exerted by the spring on the positioning pressure plate and the positioning pressure plate on the pressure sensor, but also ensure the stability and smoothness of the positioning pressure plate during the pressure application process, avoiding jamming of the positioning pressure plate during the pressure application process and affecting the overall test results, laying a foundation for accurate detection in the later stage, and being stable and practical. Description of the Drawings
[0015] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments and in conjunction with the drawings, where
[0016] Figure 1 is the front view of the overall structure of the spring pressure test in the present utility model;
[0017] Figure 2 is the top view of the overall structure of the spring pressure test in the present utility model;
[0018] Figure 3 is the sectional view of the overall structure of the test bracket in the present utility model;
[0019] Figure 4 is the sectional view of the connection structure between the positioning plate and the positioning shaft in the present utility model;
[0020] Figure 5 is the sectional view of the connection structure between the pressure plate and the side bracket in the present utility model. Detailed Embodiment
[0021] See Figures 1 to 5, this utility model has a spring pressure testing device, which has a testing platform 1; a positioning component 2 for installing the spring is arranged on the testing platform 1, and a testing component 3 for pressing the spring on the positioning component 2 is also arranged. The positioning component 2 includes a positioning plate 21 fixed on the testing platform 1, a positioning shaft 22 arranged on the positioning plate 21, a positioning pressing plate 23 coaxially arranged with the positioning shaft 22 and slidably connected to the positioning plate 21 along the axis of the positioning shaft 22, a pressure sensor 24 arranged between the positioning pressing plate 23 and the positioning plate 21, and a recorder 25 fixed on the testing platform 1 and electrically connected to the pressure sensor 24 to display the pressure indication. The testing component 3 includes a testing motor 31 fixed on the side of the testing platform 1, a testing screw rod 32 fixed on the output end of the testing motor 31, a testing bracket 33 slidably connected to the testing platform 1, and pressing plates 34 oppositely arranged on the testing bracket 33 and capable of pressing the spring. The testing bracket 33 includes oppositely arranged side brackets 331 and connecting rods 332 connecting each side bracket 331. The side brackets 331 are Z-shaped, and each pressing plate 34 is arranged at one end of each side bracket 331. The connecting rods 332 are perpendicularly arranged with each side bracket 331, and the connecting rods 332 are arranged at one end of each side bracket 331 away from the pressing plate 34. A testing screw hole adapted to the testing screw rod 32 is arranged on the connecting rod 332. The testing bracket 33 is slidably arranged on the testing platform 1 through the driving of the testing motor 31 on the testing screw rod 32 and the cooperation between the testing screw rod 32 and the testing screw hole. Each pressing plate 34 presses the spring through the driving of the testing motor 31 on the testing bracket 33. The recorder 25 displays the compression of the spring through the pressing of the spring on the positioning pressing plate 23 and the pressing of the positioning pressing plate 23 on the pressure sensor 24.
[0022] Bottom sliders 36 are arranged on each side bracket 331, and opposite bottom slide rails 11 are arranged on the testing platform 1. The extending direction of the bottom slide rails 11 is parallel to the axis of the positioning shaft 22. The side brackets 331 are slidably connected to the testing platform 1 through the cooperation of the bottom sliders 36 and the bottom slide rails 11 and the driving of the testing motor 31.
[0023] The cross-section of each pressing plate 34 is L-shaped. The pressing plate 34 includes a connecting plate portion 341 and a limiting plate portion 342 perpendicular to the connecting plate portion 341. An adjusting groove 334 is provided on the side bracket 331. The adjusting grooves 334 on each side bracket 331 are arranged oppositely. The connecting plate portion 341 is slidably connected in the adjusting groove 334. The extending direction of the adjusting groove 334 is perpendicular to the positioning shaft 22. A plurality of connecting through holes 340 are provided on the connecting plate portion 341 and are evenly arranged along the extending direction of the connecting plate portion 341. A locking groove 333 is provided on the end face of the side bracket 331. The locking groove 333 extends from the end face of the side bracket 331 into the adjusting groove 334. A locking hole 335 corresponding to the locking groove 333 is further provided in the adjusting groove 334. The locking groove 333 and the locking hole 335 can communicate with any one of the connecting through holes 340. A locking pin 35 is slidably provided in the locking groove 333. One end of the locking pin 35 is located outside the side bracket 331, and the other end of the locking pin 35 passes through a connecting through hole 340 and any one of the connecting through holes 340 and then extends into the locking hole 335. A return spring 336 is provided in the locking groove 333. The two ends of the return spring 336 act on the locking groove 333 and the locking pin 35 respectively. The pressing plate 34 is installed on the side bracket 331 through the continuous force applied by the return spring 336 to the locking pin 35 and the cooperation of the locking pin 35 with the connecting through hole 340 and the locking hole 335.
[0024] A handle 351 is provided at one end of the locking pin 35 away from the locking hole 335.
[0025] A through hole for the positioning shaft 22 to pass through is provided on the positioning pressing plate 23. A plurality of connecting sliding rods 231 are provided at one end of the positioning pressing plate 23 away from the positioning shaft 22. Each connecting sliding rod 231 is circumferentially distributed on the positioning pressing plate 23 along the axis of the positioning shaft 22. The extending direction of each connecting sliding rod 231 is parallel to the axis of the positioning shaft 22. Connecting sliding holes 211 adapted to each connecting sliding rod 231 are provided on the positioning plate 21. The positioning pressing plate 23 is slidably connected to the positioning plate 21 through the cooperation of each connecting sliding rod 231 and the connecting sliding hole 211.
[0026] Working principle of the utility model: During the use of the utility model, first install the spring on the positioning shaft 22. The spring is sleeved into the installation shaft, and one end of the spring is pressed against the positioning pressing plate 23. Then, adjust the positions of each pressing plate 34. During the adjustment process, the operator first pulls the locking pin 35 by the handle 351 against the action of the return spring 336. During the pulling process, the locking pin 35 disengages from the locking hole 335 and the connecting through hole 340. Then, the operator can adjust the extension amount of the pressing plate 34 according to the size of the spring. After the adjustment is completed, release the locking pin 35. The locking pin 35 is reset under the action of the return spring 336. During the reset process, the locking pin 35 passes through the corresponding connecting through hole 340 and extends into the locking hole 335. Then, the test motor 31 initially drives the test screw rod 32. Then, press the pressing plate 34 against one end of the spring, press the positioning pressing plate 23 against the pressure sensor 24 through driving, and calibrate the position through the recorder 25. After the calibration is completed, the test motor 31 starts to drive the test screw rod 32. The test screw rod 32 drives the test bracket 33 to move towards the positioning plate 21 through the cooperation with the test screw hole on the test bracket 33. During the movement, each pressing plate 34 starts to apply pressure to one end of the spring, and the spring starts to be compressed under pressure. At the same time, the force received by the spring during the compression process is used by the pressure sensor 24 and the recorder 25 to measure the force corresponding to different deformations of the spring. According to the values of different pressures and the deformation of the spring, the real-time detection of the deformation of the spring is carried out, and the maximum bearing pressure of the spring is obtained through the deformation amount of the spring, effectively avoiding the problem that the spring is prone to deformation during the test in the prior art, improving the detection accuracy of the spring under pressure, with a clever structure, stable and efficient.
[0027] The specific embodiments described above have further detailed the purpose, technical solutions, and beneficial effects of the utility model. It should be understood that the above are only specific embodiments of the utility model and are not used to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. Spring pressure testing device, having a testing platform; characterized in that: The test platform is provided with a positioning component for installing a spring and a test component for applying pressure to the spring on the positioning component. The positioning component includes a positioning plate fixed on the test platform, a positioning shaft arranged on the positioning plate, a positioning pressure plate coaxially arranged with the positioning shaft and slidably connected to the positioning plate along the axis of the positioning shaft, a pressure sensor arranged between the positioning pressure plate and the positioning plate, and a recorder fixed on the test platform and electrically connected to the pressure sensor to display the pressure reading. The test component includes a test motor fixed on the side of the test platform, a test screw rod fixed on the output end of the test motor, a test bracket slidably connected to the test platform, and pressure plates oppositely arranged on the test bracket and capable of applying pressure to the spring. The test bracket includes oppositely arranged side brackets and a connecting rod connecting each side bracket. The side brackets are Z-shaped, and each pressure plate is arranged at one end of each side bracket. The connecting rod is perpendicularly arranged to each side bracket and is arranged at one end of each side bracket away from the pressure plate. The connecting rod is provided with a test screw hole adapted to the test screw rod. The test bracket is slidably arranged on the test platform through the driving of the test motor on the test screw rod and the cooperation of the test screw rod and the test screw hole. Each pressure plate applies pressure to the spring through the driving of the test motor on the test bracket. The recorder displays the compression of the spring through the pressing of the spring on the positioning pressure plate and the pressing of the positioning pressure plate on the pressure sensor.
2. The spring pressure testing device according to claim 1, wherein: Each side bracket is provided with a bottom slider, and the test platform is provided with opposite bottom slide rails. The extending direction of the bottom slide rails is parallel to the axis of the positioning shaft. The side brackets are slidably connected to the test platform through the cooperation of the bottom sliders and the bottom slide rails and the driving of the test motor.
3. The spring pressure testing device according to claim 2, characterized in that: The cross-section of each pressure plate is L-shaped. The pressure plate includes a connecting plate portion and a limiting plate portion perpendicularly arranged to the connecting plate portion. The side brackets are provided with adjusting grooves, and the adjusting grooves on each side bracket are oppositely arranged. The connecting plate portion is slidably connected in the adjusting groove. The extending direction of the adjusting groove is perpendicular to the axis of the positioning shaft. The connecting plate portion is provided with a plurality of connecting through holes uniformly arranged along the extending direction of the connecting plate portion. The end face of the side bracket is provided with a locking groove, and the locking groove extends from the end face of the side bracket to the adjusting groove. The adjusting groove is also provided with a locking hole corresponding to the locking groove. The locking groove and the locking hole can communicate with any connecting through hole. A locking pin is slidably arranged in the locking groove. One end of the locking pin is located outside the side bracket, and the other end of the locking pin passes through a connecting through hole and any connecting through hole and extends into the locking hole. A return spring is arranged in the locking groove, and the two ends of the return spring act on the locking groove and the locking pin respectively. The pressure plate is installed on the side bracket through the continuous force applied by the return spring on the locking pin and the cooperation of the locking pin with the connecting through hole and the locking hole.
4. The spring pressure testing device according to claim 3, wherein: One end of the locking pin away from the locking hole is provided with a handle.
5. The spring pressure testing device according to claim 4, characterized in that: The positioning pressure plate is provided with a through hole for the positioning shaft to pass through, and a plurality of connecting slide rods are provided at one end of the positioning pressure plate away from the positioning shaft. The connecting slide rods are distributed on the positioning pressure plate along the circumference of the axis of the positioning shaft, and the extension direction of each connecting slide rod is arranged parallel to the axis of the positioning shaft. The positioning plate is provided with connecting slide holes adapted to each connecting slide rod, and the positioning pressure plate is slidably connected to the positioning plate through the cooperation of each connecting slide rod and the connecting slide hole.