Spring elastic force detection device

Abstract

The utility model discloses a spring elasticity detection device, which comprises a detection box body and a controller main body, the detection box body is arranged at the top of the controller main body, a temperature regulation and control device is arranged on the detection box body, a vertical electric push rod is fixedly arranged on the inner side wall of the top of the detection box body, and the electric push rod is connected with the controller main body. A hydraulic cylinder is connected to the movable end of the electric push rod, a connecting plate is fixedly arranged at the movable end of the hydraulic cylinder, a pressure sensor is fixedly arranged on the bottom wall of the middle of the connecting plate, a pressing block is fixedly arranged at the bottom of the pressure sensor, a transverse open groove is formed in the bottom of the detection box body, and a limiting mechanism is arranged on the transverse open groove. And a chassis is fixedly arranged at the inner bottom of the detection box body. The utility model belongs to the technical field of spring elasticity detection, and particularly relates to a spring elasticity detection device.

Description

Technical Field

[0001] This utility model belongs to the field of spring force detection technology, specifically referring to a spring force detection device. Background Technology

[0002] In modern manufacturing, springs are used as key components in many fields such as automobiles, aerospace, and machinery. Different working conditions have stringent requirements for the performance of springs, such as elasticity accuracy and stability, which has prompted the development of high-precision spring elasticity testing devices to screen out qualified springs and control quality in the production process, so as to meet the high-precision standard requirements of components in complex industrial manufacturing systems.

[0003] Most existing spring force testing devices do not have dedicated temperature control devices. In many practical applications, springs need to work under different temperature conditions, and the working temperature varies greatly. Consequently, the spring force performance will also be different, which will affect the accurate assessment of spring quality. Moreover, the limiting mechanism in most existing spring force testing devices is fixed and cannot be adjusted according to different sizes and types of springs. Utility Model Content

[0004] To address the problems mentioned above, most existing spring force testing devices lack dedicated temperature control devices, and the limiting mechanisms in existing spring force testing devices are fixed and cannot be adjusted according to different sizes and types of springs, this utility model provides a spring force testing device.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A spring force detection device includes a detection box and a controller body. The detection box is located on the top of the controller body. A temperature control device is provided on the detection box. A vertical electric push rod is fixed on the inner side wall of the top of the detection box. A hydraulic cylinder is connected to the movable end of the electric push rod. A connecting plate is fixed on the movable end of the hydraulic cylinder. A pressure sensor is fixed on the bottom wall of the middle part of the connecting plate. A pressure block is fixed at the bottom of the pressure sensor. A horizontal slot is opened at the bottom of the detection box. A limit mechanism is provided on the horizontal slot. A chassis is fixed at the inner bottom of the detection box.

[0006] As a preferred embodiment of this utility model, the detection chamber is provided with a heat insulation layer inside. The temperature control device includes a temperature controller, a cooler, a heater, a ventilation fan, and a temperature sensor. The temperature controller is fixedly installed on the outer wall of the detection chamber. The cooler passes through the heat insulation layer from one side of the detection chamber, and the heater passes through the heat insulation layer from the other side of the detection chamber. The ventilation fan passes through the side of the detection chamber. The temperature sensor is fixed on the top wall of the connecting plate. The temperature controller is electrically connected to the cooler, heater, ventilation fan, and temperature sensor respectively through signal wires.

[0007] As a preferred technical solution of this utility model, the limiting mechanism includes a bidirectional lead screw, lead screw pair one, lead screw pair two, and an arc-shaped limiting plate. The bidirectional lead screw is rotatably mounted on the transverse slot. Lead screw pair one and lead screw pair two are spaced apart on the bidirectional lead screw and are both threaded onto the bidirectional lead screw. The arc-shaped limiting plate is fixed on the top of lead screw pair one and lead screw pair two.

[0008] As a preferred embodiment of this utility model, a rotating rod is rotatably mounted on the bottom of the detection box, and the end of the rotating rod is placed in a slot and connected to a bidirectional lead screw.

[0009] As a preferred technical solution of this utility model, an auxiliary telescopic rod is fixedly provided on the inner side wall of the top of the detection box. The auxiliary telescopic rod is correspondingly arranged on both sides of the hydraulic cylinder and its movable end is fixedly provided on the top of the connecting plate.

[0010] As a preferred embodiment of this utility model, one end of the detection box is hinged to a door with a handle, and the heat insulation layer is fixed to the side of the door. The material of the heat insulation layer is polyurethane foam.

[0011] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure:

[0012] 1. By setting the temperature control device, the preset temperature inside the detection chamber is set on the temperature controller. The temperature controller controls the ventilation fan for ventilation. When the temperature sensor detects that the temperature inside the detection chamber is higher than the preset temperature, the temperature controller will send an electrical signal to start the cooler, thereby reducing the temperature inside the detection chamber to the preset temperature. Conversely, it will start the heater to raise the temperature inside the detection chamber to the preset temperature. This allows for easy adjustment of the temperature inside the detection chamber, thereby detecting the spring force data under different temperature adjustments, which facilitates accurate evaluation of the spring quality.

[0013] 2. Through the cooperation of the limiting mechanism and the rotating rod, the rotating rod is manually rotated, which drives the first and second lead screw pairs on the double lead screw to move in opposite directions. This makes it easy to adjust the surrounding size of the arc-shaped limiting plate for springs of different sizes, and also makes it easy to quickly adjust the distance between the arc-shaped limiting plates, so as to quickly place and remove the spring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a spring force detection device proposed in this utility model. Figure 1 ;

[0015] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the overall structure of a spring force detection device proposed in this utility model. Figure 2 ;

[0017] Figure 4 A cross-sectional view of a spring force detection device proposed in this utility model. Figure 1 ;

[0018] Figure 5 A cross-sectional view of a spring force detection device proposed in this utility model. Figure 2 .

[0019] The components include: 1. Detection chamber; 2. Controller body; 3. Temperature control device; 4. Electric push rod; 5. Hydraulic cylinder; 6. Connecting plate; 7. Pressure sensor; 8. Pressure block; 9. Horizontal slot; 10. Limiting mechanism; 11. Chassis; 12. Insulation layer; 13. Temperature controller; 14. Refrigerator; 15. Heater; 16. Ventilation fan; 17. Temperature sensor; 18. Bidirectional lead screw; 19. Lead screw pair one; 20. Lead screw pair two; 21. Arc-shaped limiting plate; 22. Rotating rod; 23. Auxiliary telescopic rod; 24. Chamber door. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-5 As shown, the present invention provides a spring force testing device, comprising a testing chamber 1 and a controller body 2. The testing chamber 1 is located on top of the controller body 2. A temperature control device 3 is installed on the testing chamber. A vertical electric push rod 4 is fixed on the inner side wall of the top of the testing chamber 1. A hydraulic cylinder 5 is connected to the movable end of the electric push rod 4. A connecting plate 6 is fixed to the movable end of the hydraulic cylinder 5. A pressure sensor 7 is fixed on the bottom wall of the middle part of the connecting plate 6. A pressure block 8 is fixed to the bottom of the pressure sensor 7. A horizontal slot 9 is opened at the bottom of the testing chamber 1. A limit mechanism 10 is installed on the horizontal slot 9. A base plate 11 is fixed to the inner bottom of the testing chamber 1. An auxiliary telescopic rod 23 is fixed on the inner side wall of the top of the 1. The auxiliary telescopic rod 23 is correspondingly set on both sides of the hydraulic cylinder 5 and the movable end is fixed on the top of the connecting plate 6. This provides a stable auxiliary support force for the telescopic movement of the hydraulic cylinder 5. The spring is placed on the chassis 11, and the electric push rod 4 is started, thereby adjusting the bottom wall of the pressure block 8 to contact the top of the spring. Then the hydraulic cylinder 5 is started, and the movable end of the hydraulic cylinder 5 extends, thereby driving the pressure block 8 to squeeze the spring downward. The spring force is detected based on the extension distance of the hydraulic cylinder 5 and the data of the pressure sensor 7, and the data is transmitted to the controller body 2 to detect the spring force data.

[0023] like Figure 1-5As shown, the testing chamber 1 has an internal insulation layer 12; one end of the testing chamber 1 is hinged to a door 24 with a handle, and the insulation layer 12 is fixed to the side of the door 24. The insulation layer 12 is made of polyurethane foam. The temperature control device 3 includes a temperature controller 13, a cooler 14, a heater 15, a ventilation fan 16, and a temperature sensor 17. The temperature controller 13 is fixed to the outer wall of the testing chamber 1. The cooler 14 passes through the insulation layer 12 from one side of the testing chamber 1, and the heater 15 passes through the insulation layer 12 from the other side of the testing chamber 1. The ventilation fan 16 passes through the side of the testing chamber 1. The temperature sensor 17 is fixed to the top wall of the connecting plate 6. The temperature controller 13 is connected to the door via a signal wire. Do not connect the refrigerator 14, heater 15, ventilation fan 16, and temperature sensor 17 to the electrical signal. Set the preset temperature inside the detection chamber 1 on the temperature controller 13. The temperature controller 13 controls the ventilation fan 16 to ventilate. When the temperature sensor 17 detects that the temperature inside the detection chamber 1 is higher than the preset temperature, the temperature controller 13 will send an electrical signal to start the refrigerator 14, thereby lowering the temperature inside the detection chamber 1 to the preset temperature. Conversely, it will start the heater 15 to raise the temperature inside the detection chamber 1 to the preset temperature. This allows for easy adjustment of the temperature inside the detection chamber 1, thereby detecting the spring force data under different temperature adjustments, which facilitates accurate evaluation of the spring's quality.

[0024] like Figure 1 , 2 As shown in Figures 4 and 5, the limiting mechanism 10 includes a bidirectional lead screw 18, a lead screw pair 19, a lead screw pair 20, and an arc-shaped limiting plate 21. The bidirectional lead screw 18 is rotatably mounted on the transverse slot 9. The lead screw pair 19 and the lead screw pair 20 are spaced apart on the bidirectional lead screw 18 and are both threaded onto the bidirectional lead screw 18. The arc-shaped limiting plate 21 is fixed on the top of the lead screw pair 19 and the lead screw pair 20. A rotating rod 22 is rotatably mounted on the bottom of the detection box 1. The end of the rotating rod 22 is placed in the slot and connected to the bidirectional lead screw 18. When the spring is placed on the chassis 11, the rotating rod 22 is manually rotated. The rotating rod 22 rotates, driving the lead screw pair 19 and the lead screw pair 20 on the bidirectional lead screw 18 to move towards each other. This facilitates the adjustment of the surrounding size of the arc-shaped limiting plate 21 for springs of different sizes, and also facilitates the quick adjustment of the distance between the arc-shaped limiting plates 21, thereby enabling the quick placement and removal of the spring.

[0025] In practical use, open the door 24, place the spring on the chassis 11, manually rotate the lever 22. The lever 22 rotates, driving the lead screw pair 19 and lead screw pair 20 on the bidirectional lead screw 18 to move in opposite directions. Adjust the arc-shaped limit plate 21 to a suitable position, surrounding the spring within the arc-shaped limit plate 21. Start the electric push rod 4, thereby adjusting the bottom wall of the pressure block 8 to contact the top of the spring. Close the door 24, set the required preset temperature value inside the detection chamber 1 on the temperature controller 13, and control the start of the cooler 14 and heater 15 through the temperature controller 13 to maintain the temperature inside the detection chamber 1 within the preset value. As needed, the temperature controller 13 will control the ventilation fan 16 for ventilation and start the hydraulic cylinder 5. The movable end of the hydraulic cylinder 5 extends, thereby driving the pressure block 8 downward to squeeze the spring. The spring force is detected based on the extension distance of the hydraulic cylinder 5 and the data of the pressure sensor 7, and the data is transmitted to the controller body 2 to detect the spring force data.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A spring elastic force detection device comprising a detection box (1) and a controller main body (2), characterized in that: The detection box (1) is arranged on the top of the controller body (2), and a temperature regulating device (3) is arranged on the detection box (1); a vertical electric push rod (4) is fixedly arranged on the inner side wall of the top of the detection box (1); the movable end of the electric push rod (4) is connected with a hydraulic cylinder (5); the movable end of the hydraulic cylinder (5) is fixedly arranged with a connecting plate (6); a pressure sensor (7) is fixedly arranged on the middle bottom wall of the connecting plate (6); the bottom of the pressure sensor (7) is fixedly arranged with a pressing block (8); a horizontal slot (9) is formed in the bottom of the detection box (1); a limiting mechanism (10) is arranged on the horizontal slot (9); and a bottom disc (11) is fixedly arranged on the inner bottom of the detection box (1).

2. The spring force detection device according to claim 1, characterized in that: The detection box (1) is internally provided with a heat insulation layer (12); the temperature regulating device (3) comprises a temperature controller (13), a refrigerating device (14), a heater (15), a ventilation fan (16) and a temperature sensor (17); the temperature controller (13) is fixedly arranged on the outer side wall of the detection box (1); the refrigerating device (14) penetrates through the heat insulation layer (12) from one side of the detection box (1); the heater (15) penetrates through the heat insulation layer (12) from the other side of the detection box (1); the ventilation fan (16) is arranged on the side of the detection box (1); and the temperature sensor (17) is fixedly arranged on the top wall of the connecting plate (6); the temperature controller (13) is electrically connected with the refrigerating device (14), the heater (15), the ventilation fan (16) and the temperature sensor (17) through signal wires.

3. The spring force detection device of claim 2, wherein: The limiting mechanism (10) comprises a bidirectional screw rod (18), a screw rod pair I (19), a screw rod pair II (20) and an arc-shaped limiting plate (21); the bidirectional screw rod (18) is rotatably arranged on the horizontal slot (9); the screw rod pair I (19) and the screw rod pair II (20) are distributed at intervals on the bidirectional screw rod (18) and are threadedly sleeved on the bidirectional screw rod (18); and the arc-shaped limiting plate (21) is fixedly arranged on the top of the screw rod pair I (19) and the screw rod pair II (20).

4. The spring force detection device of claim 3, wherein: A rotating rod (22) is rotatably arranged on the bottom of the detection box (1); and the end of the rotating rod (22) is arranged in the slot and connected with the bidirectional screw rod (18).

5. The spring force detection device of claim 4, wherein: An auxiliary telescopic rod (23) is fixedly arranged on the inner side wall of the top of the detection box (1); the auxiliary telescopic rod (23) is correspondingly arranged on the two sides of the hydraulic cylinder (5) and the movable end thereof is fixedly arranged on the top of the connecting plate (6).

6. The spring force detection device of claim 5, wherein: A box door (24) with a handle is hingedly arranged on one end of the detection box (1); and the heat insulation layer (12) is fixedly arranged on the side of the box door (24); and the material of the heat insulation layer (12) is polyurethane foam.

Images