Spring stretching correction device and correction method

Abstract

The invention discloses a spring stretching correction device and correction method, and belongs to the technical field of spring correction. A spring stretching correction device comprises a working box with a cavity, the interior of the cavity of the working box is divided into a containing cavity, a working cavity and a cleaning cavity from top to bottom through partition plates, the spring stretching correction device further comprises a fixed traction hook fixedly connected to the side wall of the working cavity, and series circuit mechanisms are arranged on a movable traction hook and the fixed traction hook respectively. The knocking end of the reciprocating knocking mechanism is arranged below the traction end of the traction hook, and the reciprocating knocking mechanism is matched with the air injection plate; according to the invention, springs at two ends can be self-heated, the phenomenon of thermal stress concentration of the springs can be reduced, and local overheating or cooling of the springs can be prevented, so that cracks are prevented from being generated outside the springs, the subsequent service life of the springs is prolonged, ferric oxide formed on the surfaces of the springs can be removed, and good electric contact and heat conduction are ensured; the influence of oxides on spring performance is reduced, and the subsequent service life of the spring is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of spring correction, and in particular to a spring stretching correction device and a correction method. Background Art

[0002] A double-ended 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. They are widely used in various machines and equipment, mainly for storing energy, cushioning impact, controlling movement and maintaining tension. Double-ended springs are usually made of spring steel and are an indispensable component in modern mechanical design.

[0003] During the manufacturing process of the two-end springs, some of the two-end springs will be deformed. It is a pity and waste to throw away the unqualified two-end spring products, so the two-end springs need to be stretched and corrected. In addition, during the long-term use of some two-end springs, the two-end springs will also undergo certain deformations, so the two-end springs must be corrected. In the prior art, tools and equipment are usually used to continuously apply force to stretch the out-of-tolerance parts of the two-end springs to fix them within the tolerance range, and the two-end springs to be corrected are stretched to the length of their plastic deformation, and then the two-end springs are placed in an electric heating furnace for heat treatment.

[0004] However, using such an electric furnace heating method is not only difficult to control the uniform heating of the spring, but may also lead to thermal stress concentration, resulting in local overheating or cooling, which may cause cracks on the outside of the spring, affecting its performance and service life. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the electric furnace heating method in the prior art is not only difficult to control the uniform heating of the spring, but may also cause thermal stress concentration, resulting in local overheating or cooling, thereby causing cracks on the outside of the spring, affecting its performance and service life, and to propose a spring stretching correction device and correction method.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A spring stretching correction device comprises a working box with a cavity, wherein the working box cavity is divided from top to bottom by a partition to form a placement cavity, a working cavity and a cleaning cavity, and further comprises: a fixed traction hook fixedly connected to the side wall of the working cavity, wherein a movable traction hook is slidably connected in the working cavity, and a series circuit mechanism is respectively arranged on the movable traction hook and the fixed traction hook, and the series circuit mechanism is electrically connected to the traction hook; an air jet plate connected to the inner top of the working cavity, wherein the air jet end of the air jet plate faces the traction hook, a reciprocating knocking mechanism is arranged in the working cavity, and the knocking end of the reciprocating knocking mechanism is arranged below the traction end of the traction hook, and the reciprocating knocking mechanism cooperates with the air jet plate; a cleaning cylinder with an air vent is arranged in the cleaning cavity, wherein a transmission mechanism is arranged in the cleaning cavity, and the side wall of the cleaning cylinder is fixedly connected to the transmission end of the transmission mechanism, a cleaning plate is arranged at the top of the cleaning cavity, a cleaning hole is opened at the bottom end of the cleaning plate, and the output end of the cleaning hole faces the cleaning cylinder.

[0008] In order to drive the knocking plate to move up and down, preferably, the reciprocating knocking mechanism includes a knocking plate, a turntable is rotatably connected in the placement cavity, a first crank is rotatably connected to the turntable, a second crank is rotatably connected to the first crank, a slider is rotatably connected to the second crank, an extension rod is fixedly connected to the bottom of the slider, and the extension rod passes through the partition and extends into the working cavity, and the knocking plate is fixedly connected to the bottom of the extension rod.

[0009] In order to facilitate the reciprocating movement of the movable rod, further, a screw rod is rotatably connected in the working box, a movable block is threadedly connected to the screw rod, the movable block is fixedly connected to the movable rod, and the movable traction hook is fixedly connected to the movable rod.

[0010] In order to transport gas into the jet plate, preferably, an installation box is fixedly connected to the side wall of the working box, a boosting cylinder is fixedly connected in the installation box, a boosting rod is slidably connected to the boosting cylinder, a piston is provided at one end of the boosting rod, and the piston is in contact with the inner wall of the boosting cylinder, the other end of the boosting rod extends into the working box and corresponds to the movable block, a return spring is provided in the boosting cylinder, and the two ends of the return spring are respectively fixedly connected to the inner wall of the boosting cylinder and the piston, an air inlet pipe and an air outlet pipe are respectively provided on the boosting cylinder, and both the air inlet pipe and the air outlet pipe are provided with a one-way valve, and the air outlet pipe is connected to the jet plate.

[0011] To facilitate the rotation of the turntable, preferably, a transmission rack is fixedly connected to the top of the movable block, a main pulley is rotatably connected in the working box, a gear is fixedly connected to the main pulley, and the gear cooperates with the transmission rack, an auxiliary pulley is rotatably connected in the placement cavity, the main pulley is connected to the auxiliary pulley through a belt, a connecting disk is fixedly connected to the auxiliary pulley, and the connecting disk is connected to the turntable through a belt.

[0012] In order to facilitate the lifting and lowering of the jet plate, it further includes a transmission cylinder fixedly arranged in the placement cavity, a transmission rod is slidably connected to the transmission cylinder, a piston is arranged at one end of the transmission rod, and the piston is in contact with the inner wall of the transmission cylinder, a buffer spring is fixedly connected to the top of the jet plate, the connecting end of the buffer spring is fixedly connected to the inner top of the working cavity, and the other end of the transmission rod extends into the working cavity to cooperate with the jet plate, a guide cylinder is fixedly connected in the placement cavity, a guide rod is slidably connected to the guide cylinder, a piston is arranged at one end of the guide rod, and the piston is in contact with the inner wall of the guide cylinder, the other end of the guide rod is fixedly connected to the top of the slider, and the guide cylinder is communicated with the transmission cylinder.

[0013] In order to drive the cleaning cylinder to rotate, preferably, the transmission mechanism includes a transmission disk fixedly connected to the cleaning chamber, the transmission disk is rotatably connected to a rotating shaft, the rotating shaft is fixedly connected to a turbine blade, and the turbine blade is arranged in the transmission disk, the cleaning cylinder is fixedly connected to the rotating shaft, a first pipeline is arranged on one side of the transmission disk, a first electromagnetic three-way valve is arranged on the first pipeline, a filter tube is arranged in the working chamber, the filter tube is connected to the first connecting port of the first electromagnetic three-way valve through a telescopic tube, and the filter tube is arranged above the working end of the knocking plate, a second pipeline is arranged on the other side of the transmission disk, the second pipeline is connected to the cleaning plate, a negative pressure pump is arranged in the placement chamber, a second electromagnetic three-way valve is arranged at the output end of the negative pressure pump, and the first connecting port of the second electromagnetic three-way valve is connected to the jet plate through the telescopic tube.

[0014] In order to make the cleaning plate spray cleaning agent, preferably, a liquid storage tank is fixedly connected to the working box, and the liquid storage tank is connected to the second connecting port of the second electromagnetic three-way valve through a telescopic tube. A liquid outlet pipe is provided on the liquid storage tank, and the liquid outlet pipe is connected to the second connecting port of the first electromagnetic three-way valve.

[0015] In order to drive the screw rod to rotate, preferably, a motor is fixedly connected in the installation box, and the screw rod is fixedly connected to the output end of the motor.

[0016] A spring stretching correction method, the operating steps are as follows:

[0017] Step 1: Connect the two ends of the two springs that need to be stretched and corrected to the movable traction hook and the fixed traction hook respectively, then start the switch of the series circuit mechanism, and then move the position of the movable traction hook;

[0018] Step 2: The movable traction hook transmits a series current to the hook body on the fixed traction hook, and the resistance of the spring to be corrected is relatively large when stretched. When the power supply of the series circuit mechanism is turned on, the spring to be corrected self-heats and is then corrected by the movable traction hook;

[0019] Step 3: After the spring is heated, iron oxide is generated on the surface of the spring, the striking end of the reciprocating striking mechanism continuously strikes the outside of the spring, and the jet plate sprays gas toward the outside of the spring, cooperating with the reciprocating striking mechanism to clean;

[0020] Step 4: After the corrected springs at both ends are cooled, they are placed in the cleaning cylinder. The transmission mechanism drives the cleaning cylinder to rotate, and the cleaning plate will spray cleaning liquid or dry hot air.

[0021] Compared with the prior art, the present invention provides a spring stretching correction device and correction method, which have the following beneficial effects:

[0022] 1. The spring stretching correction device works through a series circuit mechanism. The springs at both ends are self-heated. During this process, the surfaces of the springs at both ends may be oxidized to produce iron oxide. At this time, the reciprocating knocking mechanism can knock the iron oxide that may be produced on the surfaces of the springs at both ends, thereby removing the iron oxide formed on the surface of the spring, ensuring good electrical contact and heat conduction, reducing the influence of oxides on the performance of the spring, and increasing the subsequent service life of the spring;

[0023] 2. The spring stretching correction device can knock the iron oxide that may be produced on the surface of the two ends of the spring through the reciprocating knocking mechanism, thereby removing the iron oxide formed on the surface of the spring, ensuring good electrical contact and heat conduction, reducing the impact of oxides on the performance of the spring, and increasing the subsequent service life of the spring;

[0024] 3. The spring stretching correction device knocks the spring surface through the reciprocating knocking mechanism, and the jet plate moves up and down to spray air toward the spring surface, thereby cooperating with the reciprocating knocking mechanism to quickly remove the iron oxide on the spring surface;

[0025] 4. The spring stretching correction device, the pressurized cleaning agent will be sprayed to the outside of the cleaning cylinder through the cleaning hole, spraying the springs at both ends of the cleaning cylinder, thereby ensuring that the cleaning agent covers the surface of the spring, thereby removing oxides or other impurities on the surface of the spring, and improving the cleaning effect of the spring;

[0026] 5. The spring stretching correction device can adjust and change the connection port of the three-way valve, and the pressurized high-temperature gas can also be sprayed to the outside of the cleaning cylinder through the cleaning hole to dry the spring inside the cleaning cylinder. On the one hand, the corrected spring inside the working chamber can be quickly cooled to improve the subsequent processing speed. On the other hand, the heat in the working chamber can be reused to reduce the waste of heat resources and quickly dry the spring inside the cleaning cylinder.

[0027] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention can self-heat the springs at both ends, reduce the phenomenon of thermal stress concentration in the springs, prevent local overheating or cooling of the springs, thereby preventing cracks from forming on the outside of the springs, and improving the subsequent service life of the springs. It can also remove iron oxide formed on the surface of the springs, ensure good electrical contact and heat conduction, reduce the impact of oxides on spring performance, and improve the subsequent service life of the springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the axonometric structure of a spring tension correction device proposed by the present invention Figure 1 ;

[0029] Figure 2 A schematic diagram of the axonometric structure of a spring tension correction device proposed by the present invention Figure 2 ;

[0030] Figure 3 A schematic diagram of the cross-section structure of a spring stretching correction device proposed by the present invention;

[0031] Figure 4 A schematic diagram of the partial structure of a spring stretching correction device proposed by the present invention Figure 1 ;

[0032] Figure 5 A schematic diagram of the partial structure of a spring stretching correction device proposed by the present invention Figure 2 ;

[0033] Figure 6 A schematic diagram of the partial structure of a spring stretching correction device proposed by the present invention Figure 3 ;

[0034] Figure 7 A schematic diagram of the partial structure of a spring stretching correction device proposed by the present invention Figure 4 .

[0035] In the figure: 1. working box; 2. screw rod; 3. movable block; 4. transmission rack; 5. temperature sensor; 6. main pulley; 7. gear; 8. auxiliary pulley; 9. connecting plate; 10. turntable; 11. first crank; 12. second crank; 13. slider; 14. extension rod; 15. knock plate; 16. movable rod; 17. movable traction hook; 18. fixed traction hook; 19. guide cylinder; 20. guide rod; 21. transmission cylinder; 22. transmission rod; 23. negative pressure pump; 24. liquid storage tank; 25. installation box; 26. boost cylinder; 27. boost rod; 28. motor; 29. ​​cleaning cylinder; 30. intercepting cover; 31. transmission disk; 32. rotating shaft; 33. turbine blade; 34. filter tube; 35. jet plate; 36. buffer spring; 37. cleaning plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Example:

[0039] Reference Figure 1-Figure 7 A spring stretching correction device comprises a working box 1 with a cavity, wherein the cavity of the working box 1 is divided from top to bottom by a partition to form a placement cavity, a working cavity and a cleaning cavity, and further comprises: a fixed traction hook 18, which is fixedly connected to the side wall of the working cavity, wherein a movable traction hook 17 is slidably connected in the working cavity, and a series circuit mechanism is respectively provided on the movable traction hook 17 and the fixed traction hook 18, and the series circuit mechanism is electrically connected to the traction hook; an air jet plate 35, which is connected to the inner top of the working cavity, wherein the air jet plate 3 5, the jet end faces the traction hook, a reciprocating knocking mechanism is arranged in the working chamber, and the knocking end of the reciprocating knocking mechanism is arranged below the traction end of the traction hook, and the reciprocating knocking mechanism cooperates with the jet plate 35; a cleaning cylinder 29 with a vent hole is arranged in the cleaning chamber, wherein a transmission mechanism is arranged in the cleaning chamber, and the side wall of the cleaning cylinder 29 is fixedly connected to the transmission end of the transmission mechanism, a cleaning plate 37 is arranged on the top of the cleaning chamber, a cleaning hole is opened at the bottom end of the cleaning plate 37, and the output end of the cleaning hole faces the cleaning cylinder 29.

[0040] The above-mentioned series circuit mechanism includes wires arranged on the movable traction hook 17 and the fixed traction hook 18. The principle is: the external power supply flows to the wires on the fixed traction hook 18 through the wires on the movable traction hook 17, and flows from the positive electrode of the power supply to the negative electrode of the power supply. When the movable traction hook 17 is stretched, the resistance of the springs at both ends to be corrected is relatively large. When the power supply of the series circuit mechanism is turned on, the spring to be corrected will self-heat, and a current regulator is arranged on the series circuit mechanism to adjust the size of the circuit current. A temperature sensor 5 is also arranged in the working chamber, and the temperature sensor 5 can use an infrared thermometer to detect the heating temperature of the spring to be corrected, and then the current regulator is used to control the current size in the spring to be corrected, thereby controlling the heating temperature of the spring to be corrected, and then realizing heating and stretching correction.

[0041] The two ends of the springs to be corrected are respectively connected to the movable traction hook 17 and the fixed traction hook 18, and the springs to be corrected can be stretched by moving the movable traction hook 17.

[0042] When the series circuit mechanism is working, the springs at both ends will self-heat. During this process, the surfaces of the springs at both ends may be oxidized to produce iron oxide. At this time, the reciprocating knocking mechanism can knock the iron oxide that may be produced on the surfaces of the springs at both ends, thereby removing the iron oxide formed on the surfaces of the springs, ensuring good electrical contact and heat conduction, reducing the impact of oxides on spring performance, and increasing the subsequent service life of the spring.

[0043] Furthermore, by heating the springs at both ends through a series circuit mechanism, the phenomenon of thermal stress concentration in the springs can be reduced, local overheating or cooling of the springs can be prevented, thereby preventing cracks from forming on the outside of the springs and increasing the subsequent service life of the springs.

[0044] When the reciprocating knocking mechanism knocks the surface of the spring, the jet plate 35 moves up and down to spray air toward the surface of the spring, thereby cooperating with the reciprocating knocking mechanism to quickly remove the iron oxide on the surface of the spring.

[0045] After the iron oxide on the surface of the two springs is cleaned, turn off the power switch of the series circuit mechanism, remove the two springs and put them into the cleaning cylinder 29. An interception cover 30 is also slidably connected to the cleaning cylinder 29 to block and unblock the entrance of the cleaning cylinder 29. Then, the cleaning cylinder 29 is driven to rotate by the transmission mechanism, so that the two springs rotate and collide in the cleaning cylinder 29. When the two springs collide, the iron oxide that may remain on the surface of the two springs can be further cleaned.

[0046] Furthermore, the above-mentioned reciprocating knocking mechanism includes a knocking plate 15, which is placed in the cavity and rotatably connected to a turntable 10, the turntable 10 is rotatably connected to a first crank 11, the first crank 11 is rotatably connected to a second crank 12, the second crank 12 is rotatably connected to a slider 13, the bottom of the slider 13 is fixedly connected to an extension rod 14, and the extension rod 14 passes through the partition and extends into the working cavity, and the knocking plate 15 is fixedly connected to the bottom of the extension rod 14.

[0047] When the turntable 10 rotates, the first crank 11 and the second crank 12 can be used in conjunction with each other to drive the extension rod 14 on the slider 13 to move up and down in the working chamber, thereby driving the knocking plate 15 at the bottom of the extension rod 14 to move synchronously.

[0048] In order to drive the movable traction hook 17 to move, a screw rod 2 is rotatably connected in the working box 1 , a movable block 3 is threadedly connected to the screw rod 2 , a movable rod 16 is fixedly connected to the movable block 3 , and the movable traction hook 17 is fixedly connected to the movable rod 16 .

[0049] When the screw rod 2 rotates, it can drive the movable block 3 to move horizontally, and then drive the movable rod 16 to move synchronously, so that the movable rod 16 drives the movable traction hook 17 to move synchronously, and stretch the spring to be corrected.

[0050] In order to transport gas toward the jet plate 35, an installation box 25 is fixedly connected to the side wall of the working box 1, a booster cylinder 26 is fixedly connected inside the installation box 25, a booster rod 27 is slidably connected to the booster cylinder 26, a piston is provided at one end of the booster rod 27, and the piston is in contact with the inner wall of the booster cylinder 26, the other end of the booster rod 27 extends into the working box 1 and corresponds to the movable block 3, a return spring is provided in the booster cylinder 26, and the two ends of the return spring are respectively fixedly connected to the inner wall of the booster cylinder 26 and the piston, an air inlet pipe and an air outlet pipe are respectively provided on the booster cylinder 26, and both the air inlet pipe and the air outlet pipe are provided with a one-way valve, and the air outlet pipe is connected to the jet plate 35.

[0051] A motor 28 is fixedly connected inside the installation box 25 , and the screw rod 2 is fixedly connected to the output end of the motor 28 for driving the screw rod 2 to rotate.

[0052] When the movable block 3 moves toward the direction of the boost cylinder 26, it will first abut against the end of the boost rod 27 and push the boost rod 27 to move, so that the boost rod 27 drives the piston to move against the inner wall of the boost cylinder 26. During this process, the return spring is compressed, the intake pipe stops intake, and the gas in the boost cylinder 26 is transported to the jet plate 35 through the outlet pipe. A diverter chamber is also provided in the jet plate 35, and the gas enters the diverter chamber. The bottom of the jet plate 35 is also provided with an injection hole. The gas in the diverter chamber is finally ejected through the injection hole, and the gas moves toward the outside of the springs at both ends to clean the iron oxide on the outside of the springs at both ends. When the movable block 3 is away from the boost rod 27, the compressed return spring is reset, the intake pipe intakes air to supplement the gas in the boost cylinder 26, and the outlet pipe stops exhausting.

[0053] In order to drive the turntable 10 to rotate, a transmission rack 4 is fixedly connected to the top of the movable block 3, a main pulley 6 is rotatably connected in the working box 1, a gear 7 is fixedly connected to the main pulley 6, and the gear 7 cooperates with the transmission rack 4, an auxiliary pulley 8 is rotatably connected in the placement cavity, the main pulley 6 is connected to the auxiliary pulley 8 through a belt, a connecting disk 9 is fixedly connected to the auxiliary pulley 8, and the connecting disk 9 is connected to the turntable 10 through a belt.

[0054] When the movable block 3 drives the transmission rack 4 to move to the position of the gear 7, the gear 7 is meshed with the transmission rack 4, so that the gear 7 drives the main pulley 6 to rotate, and the main pulley 6 drives the auxiliary pulley 8 to rotate, and the main pulley 6 rotates one circle, and the auxiliary pulley 8 rotates three circles. When the auxiliary pulley 8 rotates, it will drive the connecting disk 9 to rotate synchronously, and then the connecting disk 9 drives the turntable 10 to rotate.

[0055] In addition, in order to improve the jet effect of the jet plate 35, it also includes a transmission cylinder 21 fixedly arranged in the placement cavity, a transmission rod 22 is slidably connected to the transmission cylinder 21, a piston is arranged at one end of the transmission rod 22, and the piston is in contact with the inner wall of the transmission cylinder 21, a buffer spring 36 is fixedly connected to the top of the jet plate 35, the connecting end of the buffer spring 36 is fixedly connected to the inner top of the working cavity, and the other end of the transmission rod 22 extends into the working cavity to cooperate with the jet plate 35, a guide cylinder 19 is fixedly connected in the placement cavity, a guide rod 20 is slidably connected to the guide cylinder 19, a piston is arranged at one end of the guide rod 20, and the piston is in contact with the inner wall of the guide cylinder 19, the other end of the guide rod 20 is fixedly connected to the top of the slider 13, and the guide cylinder 19 is communicated with the transmission cylinder 21.

[0056] When the slider 13 moves up and down, it will drive the guide rod 20 to move synchronously. During the movement of the guide rod 20, it will drive the piston to move in contact with the inner wall of the transmission cylinder 21, and transport the gas in the transmission cylinder 21 into the transmission cylinder 21. At this time, the gas in the transmission cylinder 21 will push the piston on the transmission rod 22 to move in contact with the inner wall of the transmission cylinder 21, so that the transmission rod 22 moves to the outside and abuts against the top of the jet plate 35, so that the jet plate 35 moves toward the traction block. In this process, the buffer spring 36 is stretched and then retracted, so that the jet plate 35 moves back and forth to purge the iron oxide on the surface of the springs at both ends.

[0057] In order to improve the cleaning effect of iron oxide on the surface of the springs at both ends, further, the above-mentioned transmission mechanism includes a transmission disk 31 fixedly connected to the cleaning chamber, the transmission disk 31 is rotatably connected to a rotating shaft 32, the rotating shaft 32 is fixedly connected to a turbine sheet 33, and the turbine sheet 33 is arranged in the transmission disk 31, the cleaning cylinder 29 is fixedly connected to the rotating shaft 32, a first pipeline is arranged on one side of the transmission disk 31, a first electromagnetic three-way valve is arranged on the first pipeline, a filter tube 34 is arranged in the working chamber, the filter tube 34 is connected to the first connecting port of the first electromagnetic three-way valve through a telescopic tube, and the filter tube 34 is arranged above the working end of the knocking plate 15, a second pipeline is arranged on the other side of the transmission disk 31, the second pipeline is connected to the cleaning plate 37, a negative pressure pump 23 is arranged in the placement chamber, and a second electromagnetic three-way valve is arranged at the output end of the negative pressure pump 23, and the first connecting port of the second electromagnetic three-way valve is connected to the jet plate 35 through a telescopic tube.

[0058] A liquid storage tank 24 is fixedly connected to the working box 1, and the liquid storage tank 24 is connected to the second connection port of the second electromagnetic three-way valve through a telescopic tube. A liquid outlet pipe is provided on the liquid storage tank 24, and the liquid outlet pipe is connected to the second connection port of the first electromagnetic three-way valve.

[0059] The liquid storage tank 24 usually contains a cleaning agent, and the cleaning agent can be water or spring cleaning agent.

[0060] When the outside of the spring needs to be cleaned, the switch of the negative pressure pump 23 is started. The input end of the negative pressure pump 23 is provided with a filter. The filter will transport the external gas into the negative pressure pump 23, and then pressurize and discharge the gas through the output end of the negative pressure pump 23. In this process, the second connection port on the second electromagnetic three-way valve is opened, and the first connection port is closed. At this time, the gas will be transported to the inside of the liquid storage tank 24, and the inside of the liquid storage tank 24 is pressurized. The internal cleaning agent will be transported to the first electromagnetic three-way valve through the liquid outlet pipe, and the first connection port inside the first electromagnetic three-way valve is closed, and the second connection port is opened. The cleaning agent will be transported to the inside of the transmission disk 31, so that the cleaning agent drives the transmission disk The turbine plate 33 in 31 rotates, so that the turbine plate 33 drives the rotating shaft 32 to rotate, and then the rotating shaft 32 drives the cleaning cylinder 29 to rotate, so that the two springs inside collide and rotate. In addition, the cleaning agent in the transmission disk 31 will be transported to the cleaning plate 37 through the telescopic tube. A cleaning hole is opened at the bottom end of the cleaning plate 37, and the output end of the cleaning hole faces the cleaning cylinder 29. The pressurized cleaning agent will be sprayed to the outside of the cleaning cylinder 29 through the cleaning hole, and the two springs in the cleaning cylinder 29 will be sprayed, thereby ensuring that the cleaning agent covers the surface of the spring, thereby removing oxides or other impurities on the surface of the spring, and improving the cleaning effect of the spring.

[0061] After the spring in the cleaning cylinder 29 is moistened, the spring can be dried. At this time, the second connection port on the second electromagnetic three-way valve is closed, and the first connection port is opened. The negative pressure pump 23 will transport the outside gas into the working chamber, and the outside gas will enter the working chamber, take away the high temperature on the surface of the spring, and blow cool the spring.

[0062] During this process, the first electromagnetic three-way valve is controlled to open the first connection port inside it and close the second connection port, and the high-temperature gas in the working chamber will enter the filter tube 34, and the filter tube 34 is provided with a filter screen to intercept the iron oxide debris in the gas inside the working chamber to prevent the gas from entering the cleaning chamber. The high-temperature gas enters the turbine blade 33 in the transmission disk 31 and rotates, so that the turbine blade 33 drives the rotating shaft 32 to rotate, and then the rotating shaft 32 drives the cleaning cylinder 29 to rotate, and the two springs inside are collided and rotated, and the gas in the transmission disk 31 enters the cleaning plate 37 through the telescopic tube. A cleaning hole is opened at the bottom end of the cleaning plate 37, and the output end of the cleaning hole faces the cleaning cylinder 29. The pressurized high-temperature gas will be sprayed to the outside of the cleaning cylinder 29 through the cleaning hole to dry the spring inside the cleaning cylinder 29. On the one hand, the spring inside the working chamber can be quickly cooled after correction, thereby improving the subsequent processing speed. On the other hand, the heat in the working chamber can be reused for a second time to reduce the waste of heat resources, and the spring inside the cleaning cylinder 29 can be quickly dried.

[0063] In addition, the lifting and moving knocking plate 15 will synchronously knock on the filter tube 34 to prevent iron oxide debris from accumulating on the intercepting surface of the filter tube 34, which can effectively reduce the accumulation of debris on the filter tube 34 and maintain smooth gas flow in the working chamber.

[0064] A spring stretching correction method, the operating steps are as follows:

[0065] Step 1: Connect the two ends of the two springs that need to be stretched and corrected to the movable traction hook 17 and the fixed traction hook 18 respectively, then start the switch of the series circuit mechanism, and then move the position of the movable traction hook 17;

[0066] Step 2: The movable traction hook 17 transmits a series current to the hook body on the fixed traction hook 18, and the resistance of the spring to be corrected is large when stretched. When the power supply of the series circuit mechanism is turned on, the spring to be corrected self-heats and is then corrected by the movable traction hook 17;

[0067] Step 3: After the spring is heated, iron oxide is generated on the surface of the spring, the striking end of the reciprocating striking mechanism continuously strikes the outside of the spring, and the jet plate 35 sprays gas toward the outside of the spring, cooperating with the reciprocating striking mechanism to clean;

[0068] Step 4: After the corrected two-end spring is cooled, it is placed in the cleaning cylinder 29, the transmission mechanism drives the cleaning cylinder 29 to rotate, and the cleaning plate 37 will spray cleaning liquid or dry hot air.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spring stretching correction device, comprising a working box (1) with a cavity, wherein the cavity of the working box (1) is divided from top to bottom by a partition to form a placement cavity, a working cavity and a cleaning cavity, characterized in that: Also includes: A fixed traction hook (18) is fixedly connected to the side wall of the working chamber. Wherein, a movable traction hook (17) is slidably connected in the working chamber, and a series circuit mechanism is respectively provided on the movable traction hook (17) and the fixed traction hook (18), and the series circuit mechanism is electrically connected to the traction hook; The jet plate (35) is connected to the inner top of the working chamber. The jet end of the jet plate (35) faces the traction hook, a reciprocating knocking mechanism is arranged in the working chamber, and the knocking end of the reciprocating knocking mechanism is arranged below the traction end of the traction hook, and the reciprocating knocking mechanism cooperates with the jet plate (35); A cleaning cylinder (29) with air holes is arranged in the cleaning chamber. A transmission mechanism is arranged in the cleaning chamber, and the side wall of the cleaning cylinder (29) is fixedly connected to the transmission end of the transmission mechanism. A cleaning plate (37) is arranged at the top of the cleaning chamber, and a cleaning hole is opened at the bottom end of the cleaning plate (37), and the output end of the cleaning hole faces the cleaning cylinder (29).

2. A spring stretching correction device according to claim 1, characterized in that: The reciprocating knocking mechanism comprises a knocking plate (15), a turntable (10) rotatably connected in the placement cavity, a first crank (11) rotatably connected to the turntable (10), a second crank (12) rotatably connected to the first crank (11), a slider (13) rotatably connected to the second crank (12), an extension rod (14) fixedly connected to the bottom of the slider (13), and the extension rod (14) passes through the partition and extends into the working cavity, and the knocking plate (15) is fixedly connected to the bottom of the extension rod (14).

3. A spring stretching correction device according to claim 2, characterized in that: A screw rod (2) is rotatably connected inside the working box (1), a movable block (3) is threadedly connected to the screw rod (2), a movable rod (16) is fixedly connected to the movable block (3), and the movable traction hook (17) is fixedly connected to the movable rod (16).

4. A spring stretching correction device according to claim 3, characterized in that: The side wall of the working box (1) is fixedly connected to an installation box (25), a boosting cylinder (26) is fixedly connected to the installation box (25), a boosting rod (27) is slidably connected to the boosting cylinder (26), one end of the boosting rod (27) is provided with a piston, and the piston is in contact with the inner wall of the boosting cylinder (26), the other end of the boosting rod (27) extends into the working box (1) and corresponds to the movable block (3), a return spring is provided in the boosting cylinder (26), and the two ends of the return spring are respectively fixedly connected to the inner wall of the boosting cylinder (26) and the piston, an air inlet pipe and an air outlet pipe are respectively provided on the boosting cylinder (26), and both the air inlet pipe and the air outlet pipe are provided with a one-way valve, and the air outlet pipe is connected to the jet plate (35).

5. A spring stretching correction device according to claim 3, characterized in that: A transmission rack (4) is fixedly connected to the top of the movable block (3); a main pulley (6) is rotatably connected inside the working box (1); a gear (7) is fixedly connected to the main pulley (6), and the gear (7) cooperates with the transmission rack (4); an auxiliary pulley (8) is rotatably connected inside the placement cavity; the main pulley (6) is transmission-connected to the auxiliary pulley (8) via a belt; a connecting disk (9) is fixedly connected to the auxiliary pulley (8); and the connecting disk (9) is transmission-connected to a rotating disk (10) via a belt.

6. A spring stretching correction device according to claim 5, characterized in that: The invention also comprises a transmission cylinder (21) fixedly arranged in the placement cavity, a transmission rod (22) being slidably connected to the transmission cylinder (21), a piston being arranged at one end of the transmission rod (22), and the piston being in contact with the inner wall of the transmission cylinder (21), a buffer spring (36) being fixedly connected to the top of the jet plate (35), a connecting end of the buffer spring (36) being fixedly connected to the inner top of the working cavity, and the other end of the transmission rod (22) extending into the working cavity and cooperating with the jet plate (35), a guide cylinder (19) being fixedly connected in the placement cavity, a guide rod (20) being slidably connected to the guide cylinder (19), a piston being arranged at one end of the guide rod (20), and the piston being in contact with the inner wall of the guide cylinder (19), and the other end of the guide rod (20) being fixedly connected to the top of the slider (13), and the guide cylinder (19) being communicated with the transmission cylinder (21).

7. A spring stretching correction device according to claim 2, characterized in that: The transmission mechanism comprises a transmission disc (31) fixedly connected in the cleaning chamber, a rotating shaft (32) being rotatably connected to the transmission disc (31), a turbine blade (33) being fixedly connected to the rotating shaft (32), and the turbine blade (33) being arranged in the transmission disc (31), the cleaning cylinder (29) being fixedly connected to the rotating shaft (32), a first pipeline being arranged on one side of the transmission disc (31), a first electromagnetic three-way valve being arranged on the first pipeline, a filter tube (34) being arranged in the working chamber, the filter tube (34) being connected to a first connecting port of the first electromagnetic three-way valve through a telescopic tube, and the filter tube (34) being arranged above the working end of the knocking plate (15), a second pipeline being arranged on the other side of the transmission disc (31), the second pipeline being connected to the cleaning plate (37), a negative pressure pump (23) being arranged in the placement chamber, a second electromagnetic three-way valve being arranged at the output end of the negative pressure pump (23), and a first connecting port of the second electromagnetic three-way valve being connected to the jet plate (35) through the telescopic tube.

8. A spring stretching correction device according to claim 7, characterized in that: A liquid storage tank (24) is fixedly connected to the working box (1), and the liquid storage tank (24) is connected to the second connection port of the second electromagnetic three-way valve through a telescopic tube. A liquid outlet pipe is provided on the liquid storage tank (24), and the liquid outlet pipe is connected to the second connection port of the first electromagnetic three-way valve.

9. A spring stretching correction device according to claim 4, characterized in that: A motor (28) is fixedly connected inside the installation box (25), and the screw rod (2) is fixedly connected to the output end of the motor (28).

10. A spring stretch correction method, comprising a spring stretch correction device according to any one of claims 1 to 9, characterized in that: The steps are as follows: Step 1: Connect the two ends of the two springs that need to be stretched and corrected to the movable traction hook (17) and the fixed traction hook (18) respectively, then start the switch of the series circuit mechanism, and then move the position of the movable traction hook (17); Step 2: the movable traction hook (17) and the hook body on the fixed traction hook (18) transmit a series current, and when stretched, the resistance of the spring to be corrected is relatively large. When the power supply of the series circuit mechanism is turned on, the spring to be corrected self-heats and is then corrected by the movable traction hook (17); Step 3: After the spring is heated, iron oxide is generated on the surface of the spring, the striking end of the reciprocating striking mechanism continuously strikes the outside of the spring, and the jet plate (35) sprays gas toward the outside of the spring, cooperating with the reciprocating striking mechanism to clean; Step 4: After the corrected two-end spring is cooled, it is placed in the cleaning cylinder (29), the transmission mechanism drives the cleaning cylinder (29) to rotate, and the cleaning plate (37) will spray cleaning liquid or dry hot air.

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