Spring service life testing machine

Abstract

The utility model provides a spring service life testing machine. Comprising a bottom plate, supporting mechanisms are arranged on the two sides of the bottom plate, a pressing plate is connected to the upper ends of the supporting mechanisms, a fixing frame is connected to the upper end of the pressing plate through an adjusting mechanism, the fixing frame is connected with the supporting mechanisms through supporting rods, and a plurality of testing mechanisms are evenly distributed at the lower end of the pressing plate. According to the utility model, through the arrangement of the testing mechanism, the second connecting sleeve can be rotated to drive the threaded sleeve to move in the first connecting sleeve and adjust the distance between the second connecting sleeve and the bottom plate according to different types and specifications of springs and testing requirements for the springs, so that the adjustment of the pressure of the springs is realized; according to the spring performance testing device, the testing requirements of different springs can be met, the applicability of the device is improved, more flexible, accurate and practical testing conditions can be provided, and evaluation of the spring performance is more comprehensive and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring production, in particular to a spring service life testing machine. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external forces and return to their original shape after the external force is removed. They are generally made of spring steel. There are many types of springs. According to their shapes, they mainly include spiral springs, scroll springs, leaf springs, special-shaped springs, etc. The difference between special-shaped springs and conventional springs is that the springs themselves are irregular, with bends and a large number of complex angle designs. The manufacturing and processing skills are relatively demanding, and the equipment is also relatively demanding. Generally, they are wound by computer machines. Because of the many winding angles and bends, the production speed is slow. Due to its complexity, the production and processing of special-shaped springs can often represent the technical level of a company. By using a spring life tester, the service life of the spring can be flexibly measured to ensure the use time and number of times of the spring, so that new springs can be replaced in time according to the situation of the spring.

[0003] The existing authorization number is CN218765975U, which discloses a spring service life tester. The key points of its technical solution are that the position of the fixed base plate can be limited by the installation rod to increase the stability during use, the angle of the installation rod can be limited by the mutual cooperation of the block and the slot, the block can be quickly ejected by the elastic force of the connecting spring, the specific position of the block can be flexibly adjusted by the mutual cooperation of the limit slot and the lever, the shape of the lever can be convenient for toggling, and the flexibility during use can be increased, the mutual cooperation of the reset spring and the limit rod can realize the limit and fixation of the spring position by flexible pulling, the limit rod can be convenient for passing and engaging by using the through hole, the shape of the limit rod can be convenient for pulling, and the elastic force of the reset spring can quickly realize reset, and the stability during use can be increased, so that the limit rod can be better limited in position. However, due to its relatively fixed structure, the above-mentioned spring service life tester cannot be adjusted according to different types and specifications of the spring, and its applicability is poor. Therefore, it is necessary to provide a new spring service life tester to solve the above problems. Utility Model Content

[0004] The technical content of the utility model is to provide a new spring service life testing machine.

[0005] In order to solve the above problems, the utility model provides a spring service life testing machine, including a base plate, support mechanisms are arranged on both sides of the base plate, the upper end of the support mechanism is connected to a pressure plate, and the upper end of the pressure plate is connected to a fixing frame through an adjustment mechanism, and the fixing frame is connected to the support mechanism through a support rod, and a plurality of test mechanisms are evenly distributed on the lower end of the pressure plate.

[0006] As a further solution of the utility model, the support mechanism includes a first support plate, a first connecting plate is fixedly mounted on the upper end of the first support plate, and the upper end of the first connecting plate is connected to the second connecting plate through a hydraulic cylinder, and the hydraulic cylinder is arranged in two groups in front and rear positions.

[0007] As a further solution of the utility model, a second support plate is fixedly installed on the upper end of the second connecting plate, and a vertical rod is fixedly installed on the upper surface of the second support plate, and two groups of vertical rods are arranged in front and back positions, and a fixing plate is arranged on the upper end of the second support plate, and a socket matching the vertical rod is opened on the fixing plate.

[0008] As a further solution of the present invention, the fixing plates are provided in two groups at left and right positions, and the sides of the two groups of fixing plates close to each other are fixedly installed on the left and right sides of the pressing plate respectively.

[0009] As a further solution of the present utility model, the adjusting mechanism includes a motor, a support frame is mounted on the surface of the motor, and the support frame is fixedly connected to the inner surface of the fixed frame, the rotating shaft of the motor is connected to the first rotating rod, the first rotating rod is connected to the second rotating rod through a pulley, and the second rotating rod is rotatably connected to the inner surface of the fixed frame.

[0010] As a further solution of the present invention, cams are arranged on both the first rotating rod and the second rotating rod, and the front surfaces of the two groups of cams are rotatably connected to the first connecting rod, and the lower ends of the two groups of first connecting rods are connected to the second connecting rod.

[0011] As a further solution of the present invention, a fixing sleeve is provided at the upper end of the second connecting rod, a groove matching with the fixing sleeve is provided at the lower end of the first connecting rod, the first connecting rod and the second connecting rod are hingedly connected, and the lower end of the second connecting rod is hingedly connected to the upper surface of the pressure plate.

[0012] As a further solution of the present invention, the support rods are arranged in four groups in a rectangular distribution, and the four groups of support rods are all arranged in a U-shaped structure, and the lower ends of the four groups of support rods are respectively fixedly connected to the front and rear sides of the two groups of second support plates.

[0013] As a further solution of the present utility model, the testing mechanism includes a fixing rod, which is fixedly mounted on the upper surface of the base plate, and the upper end of the fixing rod is movably inserted in a first connecting sleeve, the upper end of the first connecting sleeve is fixedly connected to the lower surface of the pressure plate, a second connecting sleeve is provided at the lower end of the first connecting sleeve, and a threaded sleeve is fixedly connected to the upper end of the second connecting sleeve, a threaded groove matching the threaded sleeve is provided at the lower end of the first connecting sleeve, a slot is provided in both the first connecting sleeve and the second connecting sleeve, and the inner size of the slot matches the outer size of the fixing rod.

[0014] In summary, the utility model includes at least one of the following beneficial technical effects:

[0015] First, the utility model records a spring service life testing machine, which records that by providing a supporting mechanism, the pressure plate and the fixed frame can be supported to maintain their stability. When the adjusting mechanism adjusts the height of the pressure plate, the fixed plate is driven to move up and down, and the stability of the fixed plate movement is maintained by the vertical rod to ensure the repeatability of the pressure plate movement, thereby improving the accuracy of the test results.

[0016] Second, the utility model records a spring service life testing machine, which records that by providing an adjustment mechanism, the rotation of the motor can drive the first rotating rod and the second rotating rod connected to the pulley to rotate simultaneously, so that the first connecting rod and the second connecting rod can move, and the height of the pressure plate can be adjusted up and down. The connection between the left and right groups of second connecting rods and the pressure plate can improve the stability of the movement of the pressure plate.

[0017] Third, the utility model records a spring service life testing machine, which records that by providing a testing mechanism, the second connecting sleeve can be rotated according to the different types and specifications of the springs and the testing requirements of the springs, so as to drive the threaded sleeve to move in the first connecting sleeve and adjust the distance between the second connecting sleeve and the base plate, thereby realizing the adjustment of the spring pressure, which can meet the testing requirements of different springs, improve the applicability of the device, and can provide more flexible, accurate and practical testing conditions, making the evaluation of spring performance more comprehensive and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a structural schematic diagram of the spring service life testing machine of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the spring service life testing machine of the utility model;

[0021] Figure 3It is a schematic diagram of the exploded structure of the adjustment mechanism of the spring service life testing machine of the utility model;

[0022] Figure 4 It is a schematic diagram of the exploded structure of the adjustment mechanism of the spring service life testing machine of the utility model;

[0023] Figure 5 The utility model is a schematic diagram of the component sectional exploded structure of the testing mechanism of the spring service life testing machine.

[0024] 10. The hydraulic cylinder includes the following: 1. a bottom plate; 2. a first supporting plate; 3. a first connecting plate; 4. a hydraulic cylinder; 5. a second connecting plate; 6. a second supporting plate; 7. a vertical rod; 8. a fixing plate; 9. a pressing plate; 10. an adjusting mechanism; 101. a motor; 102. a supporting frame; 103. a first rotating rod; 104. a pulley; 105. a second rotating rod; 106. a cam; 107. a first connecting rod; 108. a second connecting rod; 109. a fixing sleeve; 11. a fixing frame; 12. a supporting rod; 13. a testing mechanism; 131. a fixing rod; 132. a first connecting sleeve; 133. a second connecting sleeve; 134. a threaded sleeve. DETAILED DESCRIPTION

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The spring service life testing machine includes a bottom plate 1, both sides of the bottom plate 1 are provided with supporting mechanisms, the upper end of the supporting mechanism is connected with a pressing plate 9, and the upper end of the pressing plate 9 is connected with a fixing frame 11 through an adjusting mechanism 10, and the fixing frame 11 is connected to the supporting mechanism through a supporting rod 12, and a plurality of test mechanisms 13 are evenly distributed at the lower end of the pressing plate 9.

[0026] Preferably, the support mechanism includes a first support plate 2, a first connecting plate 3 is fixedly mounted on the upper end of the first support plate 2, and the upper end of the first connecting plate 3 is connected to the second connecting plate 5 through a hydraulic cylinder 4, and the hydraulic cylinder 4 is provided with two groups in front and rear positions to maintain the stability of the second connecting plate 5. After the test of the spring is completed, the fixing frame 11 can be driven to move upward by the hydraulic cylinder 4 to facilitate the taking and placing of the spring;

[0027] Preferably, a second supporting plate 6 is fixedly mounted on the upper end of the second connecting plate 5, and a vertical rod 7 is fixedly mounted on the upper surface of the second supporting plate 6, and two groups of vertical rods 7 are arranged in front and back positions, and a fixing plate 8 is arranged on the upper end of the second supporting plate 6, and a jack matching with the vertical rod 7 is opened on the fixing plate 8, and two groups of fixing plates 8 are arranged in left and right positions, and the sides of the two groups of fixing plates 8 close to each other are respectively fixedly mounted on the left and right sides of the pressing plate 9. By providing the vertical rod 7, the stability of the fixing plate 8 can be maintained when the fixing plate 8 moves, and the repeatability of the movement of the pressing plate 9 is ensured, thereby improving the accuracy of the test results;

[0028] Preferably, the adjustment mechanism 10 includes a motor 101, a support frame 102 is sleeved on the surface of the motor 101, and the support frame 102 is fixedly connected to the inner surface of the fixed frame 11, the rotating shaft of the motor 101 is connected to the first rotating rod 103, the first rotating rod 103 is connected to the second rotating rod 105 through a pulley 104, and the second rotating rod 105 is rotatably connected to the inner surface of the fixed frame 11, the first rotating rod 103 and the second rotating rod 105 are both provided with cams 106, and the front surfaces of the two groups of cams 106 are rotatably connected to the first connecting rod 107, and the lower ends of the two groups of first connecting rods 107 are connected to the second connecting rod 108, the upper end of the second connecting rod 108 is fixedly sleeved with a fixing sleeve 109, the lower end of the first connecting rod 107 is provided with a groove matched with the fixing sleeve 109, the first connecting rod 107 and the second connecting rod 108 are hingedly connected, and the lower end of the second connecting rod 108 is hingedly connected to the upper surface of the pressing plate 9. By providing an adjustment mechanism 10, the first rotating rod 103 and the second rotating rod 105 connected to the pulley 104 can be driven to rotate simultaneously through the rotation of the motor 101, so that the first connecting rod 107 and the second connecting rod 108 are moved, and the height of the pressing plate 9 is adjusted up and down to maintain the stability of the movement of the pressing plate 9;

[0029] Preferably, four groups of support rods 12 are arranged in a rectangular distribution, and the four groups of support rods 12 are all arranged in a U-shaped structure. The lower ends of the four groups of support rods 12 are respectively fixedly connected to the front and rear sides of the two groups of second support plates 6. By providing the support rods 12, the fixing frame 11 can be supported to maintain the stability of the fixing frame 11;

[0030] Preferably, the testing mechanism 13 includes a fixing rod 131, which is fixedly mounted on the upper surface of the base plate 1, and the upper end of the fixing rod 131 is movably inserted in the first connecting sleeve 132, and the upper end of the first connecting sleeve 132 is fixedly connected to the lower surface of the pressing plate 9, and the lower end of the first connecting sleeve 132 is provided with a second connecting sleeve 133, and the upper end of the second connecting sleeve 133 is fixedly connected with a threaded sleeve 134, and the lower end of the first connecting sleeve 132 is provided with a threaded groove that matches the threaded sleeve 134, and the first connecting sleeve 132 and the second connecting sleeve 133 are both provided with slots, and the inner side size of the slot matches the outer side size of the fixing rod 131. By providing the testing mechanism 13, the second connecting sleeve 133 can be rotated according to different types and specifications of the spring, as well as the testing requirements of the spring, to drive the threaded sleeve 134 to move in the first connecting sleeve 132, and the distance between the second connecting sleeve 133 and the base plate 1 is adjusted, thereby realizing the adjustment of the spring pressure, which can meet the testing requirements of different springs and improve the applicability of the device.

[0031] The working principle of the spring service life testing machine provided by the utility model is as follows:

[0032] Step 1: When in use, the fixing frame 11 is moved upward by the hydraulic cylinder 4, the spring is sleeved on the surface of the fixing rod 131, the second connecting sleeve 133 is rotated, the threaded sleeve 134 is driven to move in the first connecting sleeve 132, the second connecting sleeve 133 and the bottom plate 1 are adjusted to a suitable distance, and then the fixing frame 11 is moved downward by the hydraulic cylinder 4 to restore the initial height;

[0033] Step 2: The motor 101 rotates to drive the first rotating rod 103 and the second rotating rod 105 connected to the pulley 104 to rotate simultaneously, so that the first connecting rod 107 and the second connecting rod 108 move, and the height of the pressing plate 9 is adjusted up and down, and the spring is repeatedly pressed;

[0034] The third step: after the test is completed, the fixing frame 11 is driven upward by the hydraulic cylinder 4, and the spring is removed. The above is the entire working principle of the utility model.

[0035] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0036] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. Spring service life testing machine, characterized in that, include: A base plate (1), wherein both sides of the base plate (1) are provided with support mechanisms, the upper end of the support mechanism is connected to a pressing plate (9), and the upper end of the pressing plate (9) is connected to a fixing frame (11) via an adjustment mechanism (10), and the fixing frame (11) is connected to the support mechanism via a support rod (12), and a plurality of groups of testing mechanisms (13) are evenly distributed at the lower end of the pressing plate (9).

2. The spring service life testing machine according to claim 1, characterized in that: The support mechanism comprises a first support plate (2), a first connecting plate (3) being fixedly mounted on the upper end of the first support plate (2), and the upper end of the first connecting plate (3) being connected to a second connecting plate (5) via a hydraulic cylinder (4), wherein two groups of the hydraulic cylinders (4) are arranged in front and rear positions.

3. The spring service life testing machine according to claim 2, characterized in that: A second supporting plate (6) is fixedly mounted on the upper end of the second connecting plate (5), and a vertical rod (7) is fixedly mounted on the upper surface of the second supporting plate (6), and two groups of vertical rods (7) are arranged in front and rear positions. A fixing plate (8) is arranged on the upper end of the second supporting plate (6), and a socket that matches the vertical rod (7) is provided on the fixing plate (8).

4. The spring service life testing machine according to claim 3, characterized in that: The fixing plates (8) are arranged in two groups at left and right positions, and the sides of the two groups of fixing plates (8) close to each other are fixedly mounted on the left and right sides of the pressing plate (9) respectively.

5. The spring service life testing machine according to claim 1, characterized in that: The adjusting mechanism (10) comprises a motor (101), a support frame (102) is sleeved on the surface of the motor (101), and the support frame (102) is fixedly connected to the inner surface of a fixed frame (11), the rotating shaft of the motor (101) is connected to a first rotating rod (103), the first rotating rod (103) is connected to a second rotating rod (105) via a pulley (104), and the second rotating rod (105) is rotatably connected to the inner surface of the fixed frame (11).

6. The spring service life testing machine according to claim 5, characterized in that: The first rotating rod (103) and the second rotating rod (105) are both provided with cams (106), and the front surfaces of the two groups of cams (106) are both rotatably connected to the first connecting rod (107), and the lower ends of the two groups of first connecting rods (107) are both connected to the second connecting rod (108).

7. The spring service life testing machine according to claim 6, characterized in that: The upper end of the second connecting rod (108) is fixedly sleeved with a fixing sleeve (109), the lower end of the first connecting rod (107) is provided with a groove matching the fixing sleeve (109), the first connecting rod (107) and the second connecting rod (108) are hingedly connected, and the lower end of the second connecting rod (108) is hingedly connected to the upper surface of the pressure plate (9).

8. The spring service life testing machine according to claim 3, characterized in that: The support rods (12) are arranged in four groups in a rectangular distribution, and the four groups of support rods (12) are all arranged in a U-shaped structure, and the lower ends of the four groups of support rods (12) are respectively fixedly connected to the front and rear sides of the two groups of second support plates (6).

9. The spring service life testing machine according to claim 1, characterized in that: The testing mechanism (13) comprises a fixing rod (131), the fixing rod (131) being fixedly mounted on the upper surface of the base plate (1), the upper end of the fixing rod (131) being movably inserted into a first connecting sleeve (132), the upper end of the first connecting sleeve (132) being fixedly connected to the lower surface of the pressing plate (9), the lower end of the first connecting sleeve (132) being provided with a second connecting sleeve (133), and the upper end of the second connecting sleeve (133) being fixedly connected to a threaded sleeve (134), the lower end of the first connecting sleeve (132) being provided with a threaded groove matching the threaded sleeve (134), the first connecting sleeve (132) and the second connecting sleeve (133) both being provided with slots, and the inner dimensions of the slots matching the outer dimensions of the fixing rod (131).

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