Spring manufacturing compression detection equipment

Abstract

The utility model belongs to the technical field of spring compression detection, and particularly relates to spring manufacturing compression detection equipment, which comprises a base, a guide plate is mounted on the base, a moving groove is formed in the guide plate, a screw rod is rotatably mounted on the inner wall of the moving groove, an output shaft of a stepping motor is connected with the screw rod, and the output shaft of the stepping motor is connected with the moving groove. A moving groove is formed in the control panel, a moving block is assembled in the moving groove, a lifting plate is mounted on the moving block, a mounting block is mounted on the lifting plate, a limiting cylinder is mounted on the bottom side of the mounting block, and a pressure sensor is mounted on the inner wall of the limiting cylinder. The control panel obtains the compression length of the spring in real time, the control panel controls the stepping motor to operate according to threshold values and drives the limiting barrel to press the spring, that is, different pressures are applied according to different threshold values, the structure can be matched with springs of different specifications to apply different pressures, and the adaptability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring pressure detection, in particular to a spring manufacturing pressure detection device. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. It deforms under the action of external force and returns to its original shape after the external force is removed. During the spring production process, testing equipment is needed to test the compression performance of the spring.

[0003] A Chinese patent with publication number CN213842568U discloses a spring testing device for spring production, comprising a body, a rotating rod and a hook seat, wherein a tube groove is provided on one side surface of the rotating rod, a grip rod is provided inside the tube groove, one end of the grip rod is fixed with a round block, and an end of the grip rod away from the round block is penetrated by a movable rod, and the inner wall surface of the tube groove is provided with a sliding groove at both ends of the movable rod for sliding, and a limiting groove is provided on the top wall surface of the tube groove; by rotating the grip rod around the movable rod so that the rotating rod and the grip rod are in the same horizontal plane, the grip rod can be directly inserted into the interior of the tube groove; when the round block approaches one side of the rotating rod, the second magnetic block enters the inner wall of the groove and engages, and is magnetically fixed with the first magnetic block, thereby fixing the grip rod inside the tube groove for storage, thereby avoiding the grip rod from extending abruptly and being easily bumped during transportation, thereby affecting the service life of the detection device, and the grip rod can be easily taken out and flipped for use when in use, which is more practical.

[0004] During the pressure testing of springs, existing pressure testing equipment can only apply a fixed pressure to the spring and cannot apply different pressures to springs of different specifications, resulting in poor adaptability of the device. Therefore, a spring manufacturing pressure testing device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model provides a spring manufacturing pressure detection device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a spring manufacturing pressure detection device described in the present invention comprises a base, a guide plate is installed on the base, a scale is installed on the guide plate, a movable groove is provided on the guide plate, a screw rod is rotatably installed on the inner wall of the movable groove, a stepping motor is installed on the guide plate through a machine base, the output shaft of the stepping motor is connected to the screw rod, a movable block is assembled in the movable groove, the movable block is sleeved on the outer periphery of the screw rod, a thread is provided on the movable block and slides with the screw rod through the thread, a lifting plate is installed on the movable block, a mounting block is installed on the lifting plate, and the bottom side of the mounting block is mounted A limiting cylinder is provided, a pressure sensor is installed on the inner wall of the limiting cylinder, two groups of connecting grooves are symmetrically opened on the limiting cylinder, connecting blocks are assembled in the connecting grooves, a connecting plate is installed between the two groups of connecting blocks, the connecting plate is attached to the pressure sensor, an infrared generator and an infrared receiver are installed on the connecting plate, and the compression length threshold of the spring is input into the control panel. During detection, the control panel obtains the compression length of the spring in real time, and the control panel controls the operation of the stepping motor according to the threshold, driving the limiting cylinder to press the spring, that is, the pressure applied is different according to the threshold. This structure can cooperate with springs of different specifications to apply different pressures, which is beneficial to improving the adaptability of the device.

[0007] Preferably, a fixed plate is installed on the base, and two groups of screws are rotatably installed on the fixed plate, and the two groups of screws are symmetrically arranged. Knobs are installed on the top of the screws, and splints are sleeved on the two groups of screws. The splints are provided with threads and slide with the screws through the threads. A spring is placed between the splint and the fixed plate, and a support frame is fixedly installed on the base, and a control panel is installed on the support frame. The control panel is connected to the stepper motor, pressure sensor, infrared generator and infrared receiver through an internal circuit, and the spring is pressed through the limit cylinder. The spring pushes the connecting plate to fit tightly against the pressure sensor, and the pressure sensor outputs a current signal proportional to the pressure, and displays the pressure data through the control panel. The pressure data and the spring compression length are synchronously acquired on the control panel. Based on the analysis and comparison of these data, the pressure performance of the spring can be evaluated, which is beneficial to improving the accuracy of the detection.

[0008] The utility model is beneficial in that:

[0009] 1. The utility model inputs the compression length threshold of the spring into the control panel. During detection, the control panel obtains the compression length of the spring in real time. The control panel controls the operation of the stepper motor according to the threshold, driving the limit cylinder to press the spring. That is, the pressure applied varies according to the threshold. This structure can apply different amounts of pressure to springs of different specifications, which is beneficial to improving the adaptability of the device.

[0010] 2. The utility model presses the spring through the limit cylinder, and the spring pushes the connecting plate to fit tightly against the pressure sensor. The pressure sensor outputs a current signal proportional to the pressure and displays the pressure data through the control panel. The pressure data and the spring compression length are obtained synchronously on the control panel. Based on the analysis and comparison of these data, the pressure performance of the spring can be evaluated, which is beneficial to improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a schematic diagram of a first-person perspective three-dimensional structure;

[0013] Figure 2 Schematic diagram of the three-dimensional structure of the guide plate;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting cylinder;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the splint.

[0016] In the figure: 1. Base; 2. Guide plate; 3. Scale; 4. Moving groove; 5. Screw; 6. Stepper motor; 7. Moving block; 8. Lifting plate; 9. Mounting block; 10. Limiting cylinder; 11. Pressure sensor; 12. Connecting groove; 13. Connecting block; 14. Connecting plate; 15. Infrared generator; 16. Infrared receiver; 17. Fixing plate; 18. Screw; 19. Knob; 20. Clamp; 21. Spring; 22. Support frame; 23. Control panel. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4As shown, a spring manufacturing pressure detection device includes a base 1, a guide plate 2 is installed on the base 1, a scale 3 is installed on the guide plate 2, a moving groove 4 is opened on the guide plate 2, a screw rod 5 is rotatably installed on the inner wall of the moving groove 4, a stepping motor 6 is installed on the guide plate 2 through a machine base, the output shaft of the stepping motor 6 is connected to the screw rod 5, a moving block 7 is assembled in the moving groove 4, the moving block 7 is sleeved on the outer periphery of the screw rod 5, the moving block 7 is opened with a thread and slides with the screw rod 5 through the thread, a lifting plate 8 is installed on the moving block 7, a mounting block 9 is installed on the lifting plate 8, a limiting cylinder 10 is installed on the bottom side of the mounting block 9, and a pressure sensor 11 is installed on the inner wall of the limiting cylinder 10. Two groups of connecting grooves 12 are symmetrically provided on the limiting cylinder 10, and connecting blocks 13 are assembled in the connecting grooves 12. A connecting plate 14 is installed between the two groups of connecting blocks 13. The connecting plate 14 is attached to the pressure sensor 11, and an infrared generator 15 and an infrared receiver 16 are installed on the connecting plate 14. A fixing plate 17 is installed on the base 1, and two groups of screws 18 are rotatably installed on the fixing plate 17. The two groups of screws 18 are symmetrically arranged, and a knob 19 is installed on the top of the screw 18. A splint 20 is provided on the two groups of screws 18, and a thread is provided on the splint 20 and the thread is slidably matched with the screw 18. A spring 21 is placed between the splint 20 and the fixing plate 17, and a support is fixedly installed on the base 1. The support frame 22 is provided with a control panel 23, which is connected to the stepping motor 6, the pressure sensor 11, the infrared generator 15 and the infrared receiver 16 through an internal circuit. When working, the existing pressure detection equipment can only apply a fixed pressure to the spring 21 during the pressure detection of the spring 21, and cannot apply different pressures to springs 21 of different specifications, resulting in poor adaptability of the device. By placing the bottom end of the spring 21 between the fixed plate 17 and the clamping plate 20, turning the two sets of knobs 19, driving the screw 18 to rotate, and the screw 18 drives the clamping plate 20 thereon to move vertically downward, and the clamping plate 20 and the fixed plate 17 press the spring. 21 is clamped and fixed at the bottom, and the stepping motor 6 is controlled by the control panel 23 to operate, driving the screw rod 5 to rotate, and the screw rod 5 drives the moving block 7 thereon to move vertically downward, and the moving block 7 drives the lifting plate 8 to move vertically downward, and the lifting plate 8 drives the mounting block 9 to move vertically downward, and the mounting block 9 drives the limiting cylinder 10 to move vertically downward, and the limiting cylinder 10 drives the pressure sensor 11 and the connecting plate 14 thereon to move vertically downward until the connecting plate 14 contacts the top of the spring 21. At this time, the top of the spring 21 is located in the limiting cylinder 10. As the limiting cylinder 10 continues to move downward, the limiting cylinder 10 presses the spring 21, and the spring 21 pushes the connecting plate 14 to fit tightly against the pressure sensor 11;

[0019] During this process, the model of the pressure sensor 11 is MPX2010. The core of the pressure sensor 11 is the internal elastic sensitive element. When the pressure of the connecting plate 14 acts on the pressure sensor 11, the elastic sensitive element will deform, thereby changing the resistance value of the elastic sensitive element. The change in the resistance value is converted into an electrical signal. After being processed by the circuit, a current signal proportional to the pressure is output, and the pressure data is displayed through the control panel 23.

[0020] At the same time, the infrared generator 15 and the infrared receiver 16 are always in operation. The infrared generator 15 sends an infrared beam vertically downward. The infrared beam is reflected after encountering the fixed plate 17. The reflected infrared beam is received by the infrared receiver 16. The infrared receiver 16 then sends an electrical signal to the control panel 23. The control panel 23 internally obtains the time interval between the emission and reception of the infrared beam. Based on the propagation speed of the infrared beam in the air and the time interval between the emission and reception of the infrared beam, the distance between the connecting block 13 and the fixed plate 17, that is, the height of the spring 21, is calculated. Therefore, the control panel 23 will synchronously obtain pressure data and the compressed length of the spring 21. Based on the analysis and comparison of these data, the pressure performance of the spring 21 can be evaluated.

[0021] Springs 21 of different specifications have different pressure-bearing properties, that is, the critical values ​​of the compression lengths of springs 21 of different specifications are different. Before the test, the threshold value of the compression length of the spring 21 is already known, and the compression length threshold value of the spring 21 is input into the control panel 23. The control panel 23 controls the operation of the stepper motor 6 according to the threshold value, that is, the pressure applied is different according to the threshold value. If the same pressure is applied to springs 21 of different specifications, it is easy to cause insufficient pressure, affecting the accuracy of the test. This structure can cooperate with springs 21 of different specifications to apply different amounts of pressure, which is beneficial to improving the adaptability of the device.

[0022] Working principle: During the process of pressure testing the spring 21, the existing pressure testing equipment can only apply a fixed pressure to the spring 21, and cannot apply pressures of different sizes to springs 21 of different specifications, resulting in poor adaptability of the device. By placing the bottom end of the spring 21 between the fixed plate 17 and the clamping plate 20, rotating the two sets of knobs 19, driving the screw 18 to rotate, the screw 18 drives the clamping plate 20 thereon to move vertically downward, and the clamping plate 20 and the fixed plate 17 clamp the bottom end of the spring 21. The stepping motor 6 is controlled by the control panel 23 to operate, driving the screw rod 5 to rotate, the screw rod 5 drives the moving block 7 thereon to move vertically downward, the moving block 7 drives the lifting plate 8 to move vertically downward, the lifting plate 8 drives the mounting block 9 to move vertically downward, and the mounting block 9 drives the limiting cylinder 10 to move vertically downward. The limit cylinder 10 drives the pressure sensor 11 and the connecting plate 14 thereon to move vertically downward until the connecting plate 14 contacts the top of the spring 21. At this time, the top of the spring 21 is located in the limit cylinder 10. As the limit cylinder 10 continues to move downward, the limit cylinder 10 presses the spring 21, and the spring 21 pushes the connecting plate 14 to fit tightly against the pressure sensor 11. During this process, the model of the pressure sensor 11 is MPX2010. The core of the pressure sensor 11 is the internal elastic sensitive element. When the pressure of the connecting plate 14 acts on the pressure sensor 11, the elastic sensitive element will deform, thereby changing the resistance value of the elastic sensitive element. The change in the resistance value is converted into an electrical signal. After being processed by the circuit, a current signal proportional to the pressure is output, and the pressure data is displayed through the control panel 23. At the same time, the infrared generator 15 and the infrared receiver 16 are always in operation. The infrared generator 15 sends an infrared beam vertically downward. The infrared beam is reflected after encountering the fixed plate 17. The reflected infrared beam is received by the infrared receiver 16. Then the infrared receiver 16 sends an electrical signal to the control panel 23. The control panel 23 obtains the time interval from the emission of the infrared beam to the reception of the infrared beam, and calculates the distance between the connecting block 13 and the fixed plate 17, that is, the height of the spring 21, according to the propagation speed of the infrared beam in the air and the time interval from the emission of the infrared beam to the reception of the infrared beam. Therefore, the pressure data and the compressed length of the spring 21 are synchronously obtained on the control panel 23. Based on the analysis and comparison of these data, the pressure-bearing performance of the spring 21 can be evaluated; the pressure-bearing performance of springs 21 of different specifications is different, that is, the critical values ​​of the compression length of springs 21 of different specifications are different. Before the test, the threshold value of the compression length of the spring 21 is already known, and the compression length threshold value of the spring 21 is input into the control panel 23. The control panel 23 controls the operation of the stepper motor 6 according to the threshold value, that is, the pressure applied is different according to the threshold value. If the same pressure is applied to springs 21 of different specifications, it is easy to cause insufficient pressure, affecting the accuracy of the test. This structure can cooperate with springs 21 of different specifications to apply different amounts of pressure, which is beneficial to improving the adaptability of the device.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A spring manufacturing pressure testing device, characterized in that: The invention comprises a base (1), a guide plate (2) is mounted on the base (1), a scale (3) is mounted on the guide plate (2), a movable groove (4) is provided on the guide plate (2), a screw rod (5) is rotatably mounted on the inner wall of the movable groove (4), a stepping motor (6) is mounted on the guide plate (2) through a machine base, an output shaft of the stepping motor (6) is connected to the screw rod (5), a movable block (7) is mounted in the movable groove (4), the movable block (7) is sleeved on the outer periphery of the screw rod (5), a thread is provided on the movable block (7) and slides with the screw rod (5) through the thread, and the movable block (7) is provided with a thread. A lifting plate (8) is installed on the moving block (7), a mounting block (9) is installed on the lifting plate (8), a limiting cylinder (10) is installed on the bottom side of the mounting block (9), a pressure sensor (11) is installed on the inner wall of the limiting cylinder (10), two groups of connecting grooves (12) are symmetrically opened on the limiting cylinder (10), connecting blocks (13) are installed in the connecting grooves (12), a connecting plate (14) is installed between the two groups of connecting blocks (13), the connecting plate (14) is in contact with the pressure sensor (11), and an infrared generator (15) and an infrared receiver (16) are installed on the connecting plate (14).

2. A spring manufacturing pressure testing device according to claim 1, characterized in that: A fixing plate (17) is mounted on the base (1), and two groups of screw rods (18) are rotatably mounted on the fixing plate (17).

3. A spring manufacturing pressure testing device according to claim 2, characterized in that: The two groups of screw rods (18) are symmetrically arranged, a knob (19) is installed on the top of the screw rods (18), and a clamping plate (20) is sleeved on the two groups of screw rods (18).

4. A spring manufacturing pressure testing device according to claim 3, characterized in that: The clamping plate (20) is provided with a thread and slides in cooperation with the screw rod (18) through the thread. A spring (21) is placed between the clamping plate (20) and the fixing plate (17).

5. A spring manufacturing pressure testing device according to claim 1, characterized in that: A support frame (22) is fixedly mounted on the base (1), and a control panel (23) is mounted on the support frame (22).

6. A spring manufacturing pressure testing device according to claim 5, characterized in that: The control panel (23) is connected to the stepping motor (6), the pressure sensor (11), the infrared generator (15) and the infrared receiver (16) through an internal circuit.

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