High-precision controllable environment spring fatigue testing device

Abstract

The utility model relates to the field of spring testing, in particular to a high-precision environment-controllable spring fatigue testing device, which comprises a box body, a connecting frame, a lower testing plate, a first cylinder, a slide rail, an upper testing plate and the like, the bottom in the box body is connected with the connecting frame, the lower part of the connecting frame is connected with the lower testing plate, and the right lower part of the connecting frame is connected with the first cylinder; the left and right parts of the connecting frame are connected with slide rails, and an upper test plate is slidably connected between the slide rails. According to the utility model, a plurality of springs are installed, the heating plate or the humidifier is used for heating and humidifying, the temperature and humidity sensor is used for testing and temperature and humidity control, and the upper testing plate moves up and down to carry out fatigue testing on the springs, so that fatigue testing can be carried out on the plurality of springs in different temperature and humidity environments, and the performance of the springs can be comprehensively evaluated. Therefore, actual use conditions can be conveniently simulated for testing, the testing accuracy and reliability are improved, and the testing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring test field especially relates to a high accuracy controllable environment spring fatigue testing arrangement. BACKGROUND

[0002] In modern industry and mechanical manufacturing field, spring as a kind of key elastic element, is widely used in automobile, aerospace, electronic equipment, household appliance and many other industries, and the performance of spring is directly related to the stability, reliability and service life of entire mechanical system, so it is crucial to test the performance of spring comprehensively and accurately.

[0003] The existing spring fatigue test is usually to install spring on testing equipment, and to realize fatigue test by stretching and compressing spring through testing equipment operation, however, the current testing equipment can only test in normal temperature and humidity environment, cannot simulate various temperature and humidity conditions that may be encountered in actual use, leads to deviation between test result and actual use performance, is difficult to comprehensively evaluate the performance of spring in different environments, and influences testing efficiency, accuracy and reliability.

[0004] Therefore, it is necessary to design a high-precision controllable environment spring fatigue testing device that can test multiple springs in different temperature and humidity environments, facilitate comprehensive evaluation of spring performance, facilitate testing under simulated actual use conditions, improve testing accuracy and reliability, and improve testing efficiency. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings that the current testing equipment can only test in normal temperature and humidity environment, cannot simulate various temperature and humidity conditions that may be encountered in actual use, leads to deviation between test result and actual use performance, is difficult to comprehensively evaluate the performance of spring in different environments, and influences testing efficiency, accuracy and reliability, the utility model provides a high-precision controllable environment spring fatigue testing device that can test multiple springs in different temperature and humidity environments, facilitate comprehensive evaluation of spring performance, facilitate testing under simulated actual use conditions, improve testing accuracy and reliability, and improve testing efficiency.

[0006] The technical scheme of the utility model is as follows: a high-precision controllable environment spring fatigue testing device, comprising a box body, a connecting frame, a lower test plate, a first air cylinder, a sliding rail, an upper test plate, an adjusting assembly and a testing assembly, the connecting frame is connected to the bottom of the box body, the lower test plate is connected to the lower part of the connecting frame, the first air cylinder is connected to the lower right part of the connecting frame, the sliding rails are connected to the left and right parts of the connecting frame, the upper test plate is slidingly connected between the sliding rails, the adjusting assembly for adjusting the environment for spring testing is arranged on the box body, and the testing assembly for fatigue testing of spring is arranged on the connecting frame.

[0007] As a preferred technical scheme of the utility model, the box body is slidably provided with two box doors on the front part.

[0008] As a preferred technical scheme of the utility model, the shape of the upper test plate is different from that of the lower test plate.

[0009] As a preferred technical scheme of the utility model, the adjusting assembly comprises a humidifier, a heating plate, a temperature sensor and a humidity sensor, the humidifier is connected to the left inner side of the box body, the heating plate is connected to the rear part of the box body, the temperature sensor is connected to the left upper inner side of the box body, and the humidity sensor is connected to the right upper inner side of the box body.

[0010] As a preferred technical scheme of the utility model, the test assembly comprises a fixing block, a pressure sensor, an adjusting buckle, a second air cylinder, a motor and a screw rod, the pressure sensor is connected to the upper side of the middle part of the upper test plate, the fixing block is connected to the upper side of the pressure sensor, the adjusting buckle is connected to the right side of the upper part of the left slide rail, the slide block is slidably arranged on the right part of the connecting frame, the second air cylinder is connected to the slide block, the telescopic end of the second air cylinder passes through the fixing block, the motor is connected to the right lower part of the right side of the connecting frame, the output shaft of the motor is connected to the screw rod, the screw rod is rotatably connected to the connecting frame, and the screw rod is connected to the slide block through threads.

[0011] As a preferred technical scheme of the utility model, the connecting frame is provided with a scale line on the left and right inner sides.

[0012] The utility model discloses a spring fatigue test device, which comprises a box body, an upper test plate, a lower test plate, a connecting frame, a plurality of springs, a humidifier, a heating plate, a temperature sensor, a humidity sensor, an adjusting assembly and a test assembly.

[0013] 2、The utility model discloses a spring fatigue test device, which comprises a box body, an upper test plate, a lower test plate, a connecting frame, a plurality of springs, a humidifier, a heating plate, a temperature sensor, a humidity sensor, an adjusting assembly and a test assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front perspective structural schematic diagram of the utility model.

[0015] Figure 2 It is the back perspective structural schematic diagram of the utility model.

[0016] Figure 3 It is the three-dimensional structure schematic view of fixed block and pressure sensor and other components of the utility model.

[0017] Figure 4 It is the three-dimensional structure schematic view of adjusting buckle and connecting frame of the utility model.

[0018] Figure 5 It is the three-dimensional structure schematic view of motor and screw rod and other components of the utility model.

[0019] The marks of each component in the drawing are as follows: 1, box, 2, humidifier, 3, heating plate, 4, temperature sensor, 5, humidity sensor, 6, connecting frame, 7, lower test plate, 8, first air cylinder, 9, slide rail, 10, scale line, 11, upper test plate, 12, fixed block, 13, pressure sensor, 14, adjusting buckle, 15, second air cylinder, 16, motor, 17, screw rod. DETAILED DESCRIPTION

[0020] First of all, it should be pointed out that in the different described embodiments, the same components are provided with the same figure marks or the same component names, wherein the disclosure contained in the entire specification can be transferred to the same components with the same figure marks or the same component names in meaning. The selected position descriptions in the specification, such as up, down, lateral and the like, also refer to the directly described and shown drawings and are transferred to the new positions in meaning when the positions are changed.

[0021] A high-precision controllable environment spring fatigue testing device, as shown in Figures 1-5 The box 1 is provided with two box doors on the front in a sliding manner, which is convenient for closing for testing. The connecting frame 6 is connected to the inner bottom of the box 1. The lower test plate 7 is connected to the lower part of the connecting frame 6. The first air cylinder 8 is connected to the lower right part of the connecting frame 6. The slide rails 9 are connected to the left and right parts of the connecting frame 6. The scale lines 10 are arranged on the inner sides of the left and right parts of the connecting frame 6, which is convenient for accurately adjusting the position. The upper test plate 11 is connected to the slide rails 9 in a sliding manner. The shape of the upper test plate 11 is different from that of the lower test plate 7. The box 1 is provided with an adjusting assembly for adjusting the environment for spring testing. The connecting frame 6 is provided with a testing assembly for fatigue testing of the spring.

[0022] As shown in Figure 1 and Figure 2As shown, the adjusting assembly includes a humidifier 2, a heating plate 3, a temperature sensor 4 and a humidity sensor 5, the left inner side of the box body 1 is connected with the humidifier 2, the rear of the box body 1 is connected with the heating plate 3, the left upper inner side of the box body 1 is connected with the temperature sensor 4, and the right upper inner side of the box body 1 is connected with the humidity sensor 5.

[0023] As shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , the testing assembly includes a fixing block 12, a pressure sensor 13, an adjusting buckle 14, a second air cylinder 15, a motor 16 and a screw rod 17, the upper middle side of the upper testing plate 11 is connected with the pressure sensor 13, the upper side of the pressure sensor 13 is connected with the fixing block 12, the upper right side of the left slide rail 9 is clamped with the adjusting buckle 14, the right part of the connecting frame 6 is slidingly provided with a sliding block, the sliding block is connected with the second air cylinder 15, the telescopic end of the second air cylinder 15 penetrates through the fixing block 12, the right lower right side of the connecting frame 6 is connected with the motor 16, the output shaft of the motor 16 is connected with the screw rod 17, the screw rod 17 is rotatably connected with the connecting frame 6, and the screw rod 17 is connected with the sliding block through threads.

[0024] When fatigue test of the spring is needed, the device can be used, so that the box 1 is in contact with the ground or the desktop, then the box door is pulled to move open, then the plurality of springs are clamped between the lower test plate 7 and the upper test plate 11, the shape of the upper test plate 11 is different from that of the lower test plate 7, then the first cylinder 8 and the second cylinder 15 are started, so that the telescopic end of the first cylinder 8 is in contact with the spring, so that the telescopic end of the second cylinder 15 is in contact with the spring through the fixed block 12, thereby hooking the spring on the telescopic end of the first cylinder 8 and the second cylinder 15, then the adjusting buckle 14 is positioned according to the test requirement, and the connecting frame 6 is clamped with the scale line 10, then the box door is pushed to close for testing, then the motor 16 is started, the screw rod 17 is driven to rotate by the motor 16, the sliding block moves under the action of the screw thread, thereby driving the second cylinder 15 to move, so that the fixed block 12 moves, so that the upper test plate 11 moves along the slide rail 9 to the height position where the adjusting buckle 14 is located, then the motor 16 is reversely operated, the screw rod 17 is reversely rotated, the sliding block is reversely moved under the action of the screw thread, thereby driving the second cylinder 15 to reversely move, so that the fixed block 12 reversely moves, so that the upper test plate 11 reversely moves to compress the spring, at the same time, the pressure applied is tested by the pressure sensor 13, then the above operation is repeated to move the upper test plate 11 up and down to stretch and press the spring multiple times, so that the test height is positioned by the scale line 10, and the spring is tested under different pressures, which facilitates accurate positioning of the test, ensures consistency and repeatability of the test, improves stability and reliability of the test, then the motor 16 is turned off, and the second cylinder 15 is started to reversely operate, so that the telescopic end of the second cylinder 15 is withdrawn to be separated from the spring, so that the spring rebounds, then the deformation state of the spring is observed, thereby evaluating the fatigue degree of the spring, in the process of testing, the humidifier 2 or the heating plate 3 is started, the heating plate 3 is heated, the temperature in the box 1 is raised, the humidifier 2 is used to humidify the box 1, the temperature is tested by the temperature sensor 4, after the specified temperature is tested, the heating plate 3 is turned off, the humidity is tested by the humidity sensor 5, after the specified humidity is tested, the humidifier 2 is turned off, thereby fatigue testing the spring under different humidity and temperature, so that multiple springs can be fatigue tested under different temperature and humidity environments, which facilitates comprehensive evaluation of the performance of the spring, facilitates simulation of actual use conditions for testing, improves accuracy and reliability of the test, improves test efficiency, then the first cylinder 8 is reversely operated, so that the telescopic end of the first cylinder 8 is withdrawn to be separated from the spring, then the box door is pulled to open, then the spring is taken off, then the box door is pulled to close.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed or modified without departing from the spirit and scope of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-precision controlled-environment spring fatigue testing device, characterized by, The utility model relates to a high-precision controllable environment spring fatigue testing device, including box (1), connecting frame (6), lower test plate (7), first cylinder (8), slide rail (9), upper test plate (11), adjusting assembly and testing assembly, the bottom of box (1) is connected with connecting frame (6), and the lower test plate (7) is connected to the lower part of connecting frame (6), and the first cylinder (8) is connected to the lower right part of connecting frame (6), and the slide rail (9) is connected to the left and right two parts of connecting frame (6), and the upper test plate (11) is slidably connected between the slide rail (9), and the adjusting assembly for adjusting the environment of spring testing is arranged on the box (1), and the testing assembly for the fatigue test of spring is arranged on the connecting frame (6).

2. The high-precision controllable environmental spring fatigue testing device according to claim 1, wherein, The front of box (1) is slidably provided with two box doors.

3. The high-precision controllable environmental spring fatigue testing device according to claim 1, wherein, The shape of upper test plate (11) is different from the shape of lower test plate (7).

4. The high-precision controllable environmental spring fatigue testing device according to claim 1, wherein, The adjusting assembly includes humidifier (2), hot plate (3), temperature sensor (4) and humidity sensor (5), the left side of the left part of box (1) is connected with humidifier (2), the rear of box (1) is connected with hot plate (3), the left side of the upper part of box (1) is connected with temperature sensor (4), and the left side of the right upper part of box (1) is connected with humidity sensor (5).

5. The high-precision controllable environmental spring fatigue testing device according to claim 4, characterized in that, The testing assembly includes fixed block (12), pressure sensor (13), adjusting buckle (14), second cylinder (15), motor (16) and screw rod (17), the upper side of the middle part of upper test plate (11) is connected with pressure sensor (13), the upper side of pressure sensor (13) is connected with fixed block (12), the right side of the upper part of left slide rail (9) is clamped with adjusting buckle (14), the right side of the right part of connecting frame (6) is slidably provided with sliding block, the sliding block is connected with second cylinder (15), the telescopic end of second cylinder (15) passes through fixed block (12), the right side of the lower right part of connecting frame (6) is connected with motor (16), the output shaft of motor (16) is connected with screw rod (17), screw rod (17) is rotatably connected with connecting frame (6), and screw rod (17) is connected with sliding block through thread.

6. The high-precision controllable environment spring fatigue testing device of claim 1, further comprising a scale (10) disposed on the left and right inner sides of the connecting frame (6).

6. The high-precision controllable environment spring fatigue testing device of claim 1, further comprising a scale (10) disposed on the left and right inner sides of the connecting frame (6).

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