Reclosing switch and automatic production equipment thereof

Abstract

The invention relates to the technical field of reclosing switch production equipment, in particular to a reclosing switch and automatic production equipment thereof.The reclosing switch comprises a machine tool base, a double-row synchronous conveying belt used for driving a reclosing switch body to transfer among multiple stations is arranged on the machine tool base, and multiple machining stations are arranged on the machine tool base; the machining station comprises an energy storage spring assembling station and a detection station. Through cooperation of the correcting inclined block, the first conveying belt and the second conveying belt, the posture of the energy storage spring can be automatically regulated, the orientation of a spring hanging hole is corrected, manual intervention and adjustment are not needed, and the problems that in the prior art, manual adjustment is low in efficiency and large in error are effectively solved; and meanwhile, synchronous scheduling of the energy storage spring and the reclosing switch body is realized in cooperation with the double-row synchronous conveying belt, and the procedure connection efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of reclosing switch production equipment technology, specifically a reclosing switch and its automatic production equipment. Background Technology

[0002] Reclosing switches are critical protection devices in power systems that ensure power supply reliability. The performance of their internal spring operating mechanism directly determines the stability of the device's operation. As the core power component of this mechanism, the energy storage spring needs to be precisely connected and fixed with the fixed bracket and energy storage crank arm. Therefore, the assembly accuracy and efficiency of the energy storage spring are key control points in the reclosing switch manufacturing process.

[0003] In the existing technology, the assembly of energy storage springs mostly adopts a semi-automatic assembly mode: the operator transfers the energy storage spring to the designated assembly station, manually adjusts the orientation of the spring hanging hole to align with the fixing bracket and energy storage crank arm, and then fixes it with a clamp to complete the docking; after the assembly is completed, the product needs to be manually transferred to an independent testing station for offline sampling inspection.

[0004] The aforementioned existing technologies have several drawbacks: First, the spring posture cannot be automatically corrected, making manual adjustment inefficient and prone to alignment errors; second, there is a lack of effective correction mechanisms for the offset of the energy storage crank arm when it is not storing energy, and forced connection can easily lead to spring bending or improper engagement; third, the connection between each process relies on manual transfer, making full-process automation impossible and limiting production efficiency. These problems directly affect the production quality and efficiency of reclosing switches, failing to meet the current industry's high-quality development needs. Summary of the Invention

[0005] The purpose of this invention is to provide a reclosing switch and its automatic production equipment to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions: A reclosing switch, preferably, includes a reclosing switch body, wherein a spring operating mechanism is provided inside the reclosing switch body, and the spring operating mechanism includes an energy storage spring, a fixed bracket, an energy storage crank arm, and an energy storage transmission mechanism. One end of the energy storage spring is symmetrically provided with spring hanging holes, and an annular locking groove is provided on the inner side of the spring hanging holes. Both the fixed bracket and the energy storage crank arm are provided with a locking rod at one end for matching the spring hanging hole. Four storage slots are evenly opened on the outer periphery of the locking rod. Locking balls are slidably arranged inside the storage slots, and locking springs are fixedly connected inside the storage slots. When the locking rod is inserted into the spring hanging hole, the locking spring pushes the locking ball to embed into the annular locking groove, thereby achieving rapid locking and fixation of the energy storage spring with the fixed bracket and the energy storage crank arm.

[0007] An automated production equipment for a reclosing switch, preferably, includes a machine tool base, on which a double-row synchronous conveyor belt is provided for driving the reclosing switch body to move between multiple workstations. The machine tool base is provided with multiple processing workstations, including an energy storage spring assembly workstation and an inspection workstation. The energy storage spring assembly station is equipped with an energy storage spring feeding and alignment component, a chuck adaptive adjustment component, and a crank arm angle linkage adjustment component. The machine tool base is rotatably equipped with an equipment mounting bracket. One end of the equipment mounting bracket is provided with a first arc-shaped chuck, and the other end of the equipment mounting bracket is hinged to an adjustment bracket. The end of the adjustment bracket near the first arc-shaped chuck is provided with a second arc-shaped chuck, thus forming the main body of the chuck adaptive adjustment component. A feeding motor is also fixedly connected to the machine tool base. The output end of the feeding motor is fixedly connected to the shaft end of the equipment mounting frame, which is used to drive the equipment mounting frame to deflect the first arc-shaped chuck and the second arc-shaped chuck.

[0008] Preferably, the energy storage spring feeding and alignment component includes a rectangular feeding frame disposed at one end of the machine tool base. A first conveyor belt and a second conveyor belt are symmetrically arranged inside the rectangular feeding frame. The first conveyor belt and the second conveyor belt are installed in a stacked manner, and the length of the second conveyor belt located below is longer than that of the first conveyor belt. The rectangular feeding frame has symmetrically arranged straightening inclined blocks at the feeding end and a first electric push rod at the discharging end. The output end of the first electric push rod has a push plate with a bottom that is adapted to the arc surface of the energy storage spring. The discharge end of the rectangular feeding frame is also symmetrically hinged with a material presenting plate, and a tension spring is hooked on the side of the material presenting plate, with the top of the tension spring hooked to the rectangular feeding frame.

[0009] Preferably, the claw adaptive adjustment assembly further includes an adjustment groove disposed on the adjustment bracket, an adjustment slider is slidably connected inside the adjustment groove, and the second arc-shaped claw is rotatably connected to the adjustment slider; One end of the adjusting slider is fixedly connected to an L-shaped transmission rod, and a guide column is also fixedly connected to the machine tool base. The guide column is coaxially arranged with the output end of the feeding motor, and a guide groove is provided on the outer periphery of the guide column. The end of the L-shaped transmission rod slides into the guide groove.

[0010] Preferably, the claw adaptive adjustment assembly further includes a short rod fixed to the end of the feeding motor shaft, and a long rod is hinged to the end of the short rod; A pair of limiting slide rods are slidably connected to the machine tool base, and a U-shaped limiting frame is fixedly connected between the two limiting slide rods. One end of the U-shaped limiting frame is hinged to the long rod, and the top of the U-shaped limiting frame abuts against the ends of the two spring hanging holes of the energy storage spring.

[0011] Preferably, the crank arm angle linkage adjustment assembly includes a fixed gear fixed on the equipment mounting frame, and the fixed gear is coaxially arranged with the hinge shaft of the adjustment bracket; An adjusting gear is fixedly provided on the outer periphery of the second arc-shaped claw, and a transmission gear is rotatably connected to the adjusting bracket. The transmission gear meshes synchronously with the fixed gear and the adjusting gear. An adjusting motor is also fixedly connected to the equipment mounting frame. A first bevel gear is fixedly connected to the output end of the adjusting motor, and a second bevel gear that meshes with the first bevel gear is fixedly connected to the shaft end of the adjusting bracket.

[0012] Preferably, each of the multiple processing stations is provided with a positioning component. The positioning component includes a second electric push rod fixed on the machine tool base. The output end of the second electric push rod is fixedly connected to a positioning push plate. The positioning push plate is provided with a positioning ramp on the side facing the reclosing switch body. A symmetrical I-beam slide bar is slidably connected to the side of the machine tool base opposite to the installation position of the second electric push rod, and a return spring is sleeved on the outer periphery of the I-beam slide bar.

[0013] Preferably, a third electric push rod corresponding to multiple processing stations is provided in the middle of the double-row synchronous conveyor belt, and a lifting platform is fixedly connected to the output end of the third electric push rod; When the reclosing switch body moves to the end corresponding to the energy storage spring, the reclosing switch body is located at the top of the lifting platform.

[0014] Preferably, the testing station is equipped with a testing unit, and a fourth electric actuator is symmetrically arranged on the machine tool base. The output end of the fourth electric actuator is equipped with a testing terminal, which is connected to the testing unit through wiring.

[0015] Preferably, a third electric actuator is provided below the detection unit, and a lifting platform is fixedly connected to the output end of the third electric actuator; When the assembled reclosing switch body is moved to the bottom of the detection unit, the third electric push rod drives the lifting platform to lift the reclosing switch body upward, so that the wiring terminals of the reclosing switch body move closer to the detection terminals.

[0016] The beneficial effects of this invention are: 1. This invention, through the coordination of the straightening inclined block with the first and second conveyor belts, can automatically straighten the posture of the energy storage spring and correct the orientation of the spring hanging hole without manual intervention, effectively solving the problems of low efficiency and large error in manual adjustment in the prior art. At the same time, in conjunction with the double-row synchronous conveyor belt, it can realize the synchronous scheduling of the energy storage spring and the reclosing switch body, greatly improving the efficiency of process connection.

[0017] 2. This invention achieves adaptive angle correction through a gear linkage adjustment mechanism consisting of a motor, a first bevel gear, a second bevel gear, a transmission gear, and a fixed gear, ensuring precise alignment between the spring hanging hole of the energy storage spring and the locking rod. Combined with a snap-fit ​​structure consisting of the locking rod, locking ball, locking spring, and an annular locking groove, it achieves rapid fixation, avoiding problems such as bending of the energy storage spring and incomplete snap-fit ​​caused by forced connection. This significantly improves the assembly quality and operational reliability of the reclosing switch.

[0018] 3. This invention integrates the gripping functions of the first arc-shaped claw and the second arc-shaped claw, the positioning function of the U-shaped limit frame, the driving and assembly functions of each electric push rod, and the detection function of the detection unit. All processes are linked and coordinated, eliminating the need for manual transfer and connection, and realizing fully automated operation. At the same time, the integrated detection unit and detection terminals can provide real-time feedback on assembly quality, forming a closed-loop control, effectively preventing unqualified products from flowing into downstream processes, and meeting the industry's high-quality production needs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of the reclosing switch body in this invention; Figure 2 This is a schematic diagram of the energy storage and transmission mechanism inside the reclosing switch body in this invention. Figure 3 This is a schematic diagram showing the connection relationship between the energy storage spring, the fixed bracket, and the energy storage crank arm in this invention; Figure 4 This is a schematic diagram of the overall structure of the automated production equipment in this invention; Figure 5 This is a schematic diagram of the overall structure of the equipment mounting frame in this invention; Figure 6 This is a schematic diagram of the overall structure of the adjusting bracket in this invention; Figure 7 This is a schematic diagram of the installation position of the U-shaped limiting frame in this invention; Figure 8 This is a schematic diagram of the overall structure of the rectangular feeding frame in this invention; Figure 9 This is a top view of the rectangular feeding frame in this invention; Figure 10 yes Figure 9 A cross-sectional view along the AA direction; Figure 11 This is a schematic diagram of the overall structure of the push plate in this invention; Figure 12 This is a schematic diagram showing the relative installation positions of the positioning push plate, the I-beam slide bar, and the detection unit in this invention.

[0020] The reference numerals in the attached diagram are as follows: 1. Reclosing switch body; 2. Energy storage spring 2; 3. Fixed bracket; 4. Energy storage crank arm; 5. Energy storage transmission mechanism; 6. Spring hanging hole; 7. Annular locking groove; 8. Locking rod; 9. Storage groove; 10. Locking ball; 11. Locking spring; 12. Machine tool base; 13. Double-row synchronous conveyor belt; 14. Equipment mounting frame; 15. First arc-shaped chuck; 16. Adjusting bracket; 17. Second arc-shaped chuck; 18. Feeding motor; 19. Rectangular feeding frame; 20. First conveyor belt; 21. Second conveyor belt; 22. Alignment inclined block; 23. First electric push rod; 24. Push plate; 25. 26. Material feeding plate; 27. Tension spring; 28. Adjusting slide rail; 29. ​​Adjusting slider; 30. L-shaped transmission rod; 31. Guide column; 32. Guide slide rail; 33. Short rod; 34. Long rod; 35. Limiting slide rod; 36. U-shaped limiting frame; 37. Fixed gear; 38. Adjusting gear; 39. Transmission gear; 40. Adjusting motor; 41. First bevel gear; 42. Second bevel gear; 43. Second electric push rod; 44. Positioning push plate; 45. Positioning inclined platform; 46. I-beam slide rod; 47. Return spring; 48. Third electric push rod; 49. Lifting platform; 50. Detection unit; 51. Fourth electric push rod; 52. Detection terminal. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] A reclosing switch and its automated production equipment are disclosed. The reclosing switch is the core technical solution. It solves the problems of low docking accuracy and poor fixing efficiency in the assembly of energy storage springs in traditional reclosing switches by using the locking rod, locking ball, and annular locking groove for interlocking. The automated production equipment for the reclosing switch belongs to the field of switch manufacturing technology. It is specifically designed to achieve automated and precise assembly of energy storage springs, full-process linkage and coordination, and real-time feedback closed-loop control of assembly quality through the gripping functions of the first arc-shaped claw and the second arc-shaped claw, the positioning function of the U-shaped limit frame, the driving assembly function of each electric push rod, and the detection function of the detection unit and detection terminals. This meets the high-quality and high-efficiency production requirements of reclosing switches.

[0023] A reclosing switch, such as Figures 1-3As shown, it includes a reclosing switch body 1, and a spring operating mechanism is provided inside the reclosing switch body 1. The spring operating mechanism includes an energy storage spring 2, a fixed bracket 3, an energy storage crank arm 4, and an energy storage transmission mechanism 5. One end of the energy storage spring 2 is symmetrically provided with spring hanging holes 6, and an annular locking groove 7 is provided on the inner side of the spring hanging holes 6. Both the fixed bracket 3 and the energy storage crank arm 4 are provided with a locking rod 8 at one end for matching the spring hanging hole 6. The outer periphery of the locking rod 8 is evenly provided with four storage slots 9. The storage slots 9 are slidably provided with locking balls 10, and the storage slots 9 are fixedly connected with locking springs 11. When the locking rod 8 is inserted into the spring hanging hole 6, the locking spring 11 pushes the locking ball 10 into the annular locking groove 7, thereby achieving rapid locking and fixing of the energy storage spring 2 with the fixed bracket 3 and the energy storage crank arm 4.

[0024] An automated production line for reclosing switches, such as Figures 3-12 As shown, it includes a machine tool base 12, on which a double-row synchronous conveyor belt 13 is provided for driving the reclosing switch body 1 to move between multiple workstations. The machine tool base 12 is provided with multiple processing workstations, including an energy storage spring 2 assembly workstation and an inspection workstation. The energy storage spring 2 assembly station is equipped with an energy storage spring 2 feeding and alignment component, a chuck adaptive adjustment component, and a crank arm angle linkage adjustment component. A machine tool base 12 is rotatably mounted with an equipment mounting bracket 14. One end of the equipment mounting bracket 14 is provided with a first arc-shaped chuck 15, and the other end of the equipment mounting bracket 14 is hinged to an adjustment bracket 16. The end of the adjustment bracket 16 near the first arc-shaped chuck 15 is provided with a second arc-shaped chuck 17, thus forming the main body of the chuck adaptive adjustment component. A feeding motor 18 is also fixedly connected to the machine tool base 12. The output end of the feeding motor 18 is fixedly connected to the shaft end of the equipment mounting frame 14, which is used to drive the equipment mounting frame 14 to drive the first arc-shaped chuck 15 and the second arc-shaped chuck 17 to deflect. Among them, the energy storage spring 2 feeding and alignment component includes a rectangular feeding frame 19 set at one end of the machine tool base 12. The first conveyor belt 20 and the second conveyor belt 21 are symmetrically arranged inside the rectangular feeding frame 19. The first conveyor belt 20 and the second conveyor belt 21 are installed in a stacked manner, and the length of the second conveyor belt 21 located below is longer than that of the first conveyor belt 20. The rectangular feeding frame 19 has a symmetrically arranged straightening inclined block 22 at the feeding end, and a first electric push rod 23 at the discharging end of the rectangular feeding frame 19. The output end of the first electric push rod 23 has a push plate 24 with a bottom that is adapted to the arc surface of the energy storage spring 2. The discharge end of the rectangular feeding frame 19 is also symmetrically hinged with a material presenting plate 25, and a tension spring 26 is hooked on the side of the material presenting plate 25. The top of the tension spring 26 is hooked to the rectangular feeding frame 19. Furthermore, the claw adaptive adjustment assembly also includes an adjustment groove 27 disposed on the adjustment bracket 16, an adjustment slider 28 is slidably connected inside the adjustment groove 27, and the second arc-shaped claw 17 is rotatably connected to the adjustment slider 28. One end of the adjusting slider 28 is fixedly connected to an L-shaped transmission rod 29, and a guide column 30 is also fixedly connected to the machine tool base 12. The guide column 30 is coaxially set with the output end of the feeding motor 18, and a guide groove 31 is provided on the outer periphery of the guide column 30. The end of the L-shaped transmission rod 29 slides into the guide groove 31. Furthermore, the chuck adaptive adjustment assembly also includes a short rod 32 fixed to the end of the feeding motor 18 shaft, and a long rod 33 is hinged to the end of the short rod 32; A pair of limiting slide rods 34 are slidably connected on the machine tool base 12. A U-shaped limiting frame 35 is fixedly connected between the two limiting slide rods 34. One end of the U-shaped limiting frame 35 is hinged to the long rod 33. The top of the U-shaped limiting frame 35 abuts against the ends of the two spring hanging holes 6 of the energy storage spring 2. Furthermore, the crank arm angle linkage adjustment assembly includes a fixed gear 36 fixed on the equipment mounting frame 14, and the fixed gear 36 is coaxially arranged with the hinge shaft of the adjustment bracket 16. An adjusting gear 37 is fixedly provided on the outer periphery of the second arc-shaped chuck 17, and a transmission gear 38 is rotatably connected to the adjusting bracket 16. The transmission gear 38 meshes synchronously with the fixed gear 36 and the adjusting gear 37. An adjusting motor 39 is also fixedly connected to the equipment mounting frame 14. A first bevel gear 40 is fixedly connected to the output end of the adjusting motor 39. A second bevel gear 41 that meshes with the first bevel gear 40 is fixedly connected to the shaft end of the adjusting bracket 16. Furthermore, each of the multiple processing stations is equipped with a positioning component. The positioning component includes a second electric push rod 42 fixed on the machine tool base 12. The output end of the second electric push rod 42 is fixedly connected to a positioning push plate 43. The positioning push plate 43 is provided with a positioning ramp 44 on the side facing the reclosing switch body 1. On the machine tool base 12, on the side opposite to the installation position of the second electric push rod 42, there is a symmetrical sliding connection of an I-beam slide rod 45, and a return spring 46 is sleeved on the outer periphery of the I-beam slide rod 45; Furthermore, a third electric push rod 47 corresponding to multiple processing stations is provided in the middle of the double-row synchronous conveyor belt 13, and a lifting platform 48 is fixedly connected to the output end of the third electric push rod 47. When the reclosing switch body 1 moves to the end corresponding to the energy storage spring 2, the reclosing switch body 1 is located at the top of the lifting platform 48. Furthermore, the testing station is equipped with a testing unit 49, and a fourth electric push rod 50 is symmetrically arranged on the machine tool base 12. The output end of the fourth electric push rod 50 is equipped with a testing terminal 51, and the testing terminal 51 is connected to the testing unit 49 through wiring. Furthermore, a third electric actuator 47 is provided below the detection unit 49, and a lifting platform 48 is fixedly connected to the output end of the third electric actuator 47; When the assembled reclosing switch body 1 is moved to the bottom of the detection unit 49, the third electric push rod 47 drives the lifting platform 48 to lift the reclosing switch body 1 upward, so that the wiring terminals of the reclosing switch body 1 move closer to the detection terminal 51.

[0025] When using, such as Figure 4 and Figures 8-11 As shown, in the first step, the energy storage spring 2 is placed into the feeding end of the rectangular feeding frame 19, and the second conveyor belt 21 is started, which drives the energy storage spring 2 to move towards the clamping area of ​​the first conveyor belt 20 and the second conveyor belt 21. The end of the spring hanging hole 6 of the energy storage spring 2 contacts the straightening inclined block 22, and the direction is gradually adjusted under the guidance of the inclined surface, and finally enters the space between the two conveyor belts in parallel. Subsequently, the first conveyor belt 20 starts and together with the second conveyor belt 21, forms an upper and lower clamp on the end of the spring hanging hole 6, and steadily conveys the energy storage spring 2 to the discharge end of the rectangular feeding frame 19. During the conveying process, the orientation of the spring hanging hole 6 is further calibrated. At the same time, the double-row synchronous conveyor belt 13 starts and drives the reclosing switch body 1 to move towards the energy storage spring 2 assembly station, so that the two are in place synchronously. like Figures 5-7 and Figure 10 , Figure 11 As shown, in the second step, the feeding motor 18 is started, and the equipment mounting frame 14 drives the first arc-shaped claw 15 and the second arc-shaped claw 17 to deflect around the hinge axis at the discharge end of the rectangular feeding frame 19. During the deflection process, the second arc-shaped claw 17 gradually approaches the first arc-shaped claw 15, and the distance between the two claws decreases. When the energy storage spring 2 reaches the discharge end of the rectangular feeding frame 19, the first electric push rod 23 is started, and the push plate 24 pushes the energy storage spring 2 to squeeze the forming plate 25. The forming plate 25 flips downward around the hinge axis, and the energy storage spring 2 smoothly disengages from the rectangular feeding frame 19 and accurately falls into the clamping range of the two arc-shaped claws, completing the gripping action. Third, the feeding motor 18 starts in reverse, and the equipment mounting frame 14 drives the two arc-shaped claws and the energy storage spring 2 to rotate around the hinge axis to one side of the double-row synchronous conveyor belt 13. During the rotation, the second arc-shaped claw 17 moves away from the first arc-shaped claw 15, the distance between the two claws increases, and the energy storage spring 2 is stretched and straightened. At the same time, the short rod 32 at the shaft end of the feeding motor 18 rotates with the motor and drives the long rod 33 to deflect, pushing the U-shaped limit frame 35 to move along the limit slide rod 34 to one side of the double-row synchronous conveyor belt 13. Finally, the top of the U-shaped limit frame 35 abuts against the ends of the two spring hanging holes 6 of the energy storage spring 2, realizing the pre-positioning of the hanging holes. like Figure 4 and Figure 12 As shown, in the fourth step, when the reclosing switch body 1 moves to the position corresponding to the energy storage spring 2, the double-row synchronous conveyor belt 13 stops, the third electric push rod 47 is started, the lifting platform 48 moves upward, lifts the reclosing switch body 1 and separates it from the double-row synchronous conveyor belt 13, and moves it between the I-beam slide bar 45 and the positioning push plate 43. Then the second electric push rod 42 is activated, the positioning push plate 43 moves towards the reclosing switch body 1, the positioning ramp 44 pushes the reclosing switch body 1 toward the side of the I-beam slide bar 45 and makes contact with it, while squeezing the reset spring 46 to retract it, and the positioning push plate 43 and the I-beam slide bar 45 cooperate to fix the reclosing switch body 1 in the center. like Figure 5 and Figure 12 As shown, in the fifth step, the adjustment motor 39 is started, the first bevel gear 40 rotates and drives the second bevel gear 41 to rotate, which in turn drives the adjustment bracket 16 to deflect around the hinge axis with the equipment mounting frame 14. When the adjustment bracket 16 deflects, the transmission gear 38 meshes with the fixed gear 36 to generate rotation. The rotating transmission gear 38 drives the adjustment gear 37 to rotate, which in turn drives the second arc-shaped pawl 17 to deflect synchronously. Through this series of actions, the angle of the energy storage spring 2 is adjusted accordingly, and finally the end of its spring hanging hole 6 is precisely aligned with the locking rod 8 of the offset energy storage crank arm 4. Step 6: Continue to start the second electric push rod 42, and the reclosing switch body 1 moves towards the energy storage spring 2. The locking rods 8 on the fixed bracket 3 and the energy storage crank arm 4 are respectively inserted into the spring hanging holes 6 at both ends of the energy storage spring 2. During insertion, the locking ball 10 is squeezed by the inner wall of the spring hanging hole 6, retracts into the storage groove 9 and compresses the locking spring 11. When the locking rod 8 is fully inserted, the locking spring 11 returns to its original position, pushing the locking ball 10 into the annular locking groove 7, thus completing the locking and fixing of the energy storage spring 2 with the fixed bracket 3 and the energy storage crank arm 4. Step 7: After assembly, the second electric push rod 42 is reset, the reset spring 46 pushes the I-shaped slide rod 45 to drive the reclosing switch body 1 to reset, the energy storage spring 2 disengages from the two arc-shaped claws, the third electric push rod 47 is reset, the reclosing switch body 1 falls back onto the double-row synchronous conveyor belt 13, and the double-row synchronous conveyor belt 13 starts to transfer it to the testing station. When the reclosing switch body 1 moves below the detection unit 49, the double-row synchronous conveyor belt 13 stops, the third electric push rod 47 below the detection unit 49 starts, the lifting platform 48 lifts the reclosing switch body 1 upward, so that the body's wiring terminal is close to the detection terminal 51, the fourth electric push rod 50 starts, the detection terminal 51 contacts the wiring terminal of the reclosing switch body 1, and the detection unit 49 performs power-on detection through the detection terminal 51. After the detection is completed, the third electric push rod 47 and the fourth electric push rod 50 are reset, and the double-row synchronous conveyor belt 13 drives the reclosing switch body 1 to the next process.

[0026] The working principle of the reclosing switch and its automatic production equipment provided by this invention is as follows: First, after the energy storage spring 2 is placed into the feeding end of the rectangular feeding frame 19, the second conveyor belt 21 drives the energy storage spring 2 to move towards the clamping area of ​​the first conveyor belt 20 and the second conveyor belt 21. During the movement, the end of the spring hanging hole 6 of the energy storage spring 2 will abut against the straightening inclined block 22 at the feeding end of the rectangular feeding frame 19. The straightening inclined block 22 pushes the end of the spring hanging hole 6 to adjust its direction through the inclined guide action, and finally makes the end of the spring hanging hole 6 enter parallel between the first conveyor belt 20 and the second conveyor belt 21. Subsequently, the first conveyor belt 20 and the second conveyor belt 21 form an upper and lower clamp on the spring hanging hole 6, which can not only ensure the stability of the posture of the energy storage spring 2 during the conveying process, but also further calibrate the orientation of the spring hanging hole 6. Finally, the regulated energy storage spring 2 is conveyed to the discharge end of the rectangular loading frame 19. At the same time, the double-row synchronous conveyor belt 13 drives the reclosing switch body 1 to move towards the energy storage spring 2 assembly station, realizing the synchronous scheduling of the energy storage spring 2 and the reclosing switch body 1. Then, through the linkage of the claw adaptive adjustment component, the energy storage spring 2 is stably gripped, stretched and taut, and pre-positioned in the hanging hole: Step 1: Start the feeding motor 18. The feeding motor 18 drives the equipment mounting frame 14 to rotate the first arc-shaped claw 15 and the second arc-shaped claw 17 around the hinge axis and move them closer to the discharge end of the rectangular feeding frame 19. During the rotation, the adjusting slider 28 drives the L-shaped transmission rod 29 to slide along the guide groove 31 on the outer periphery of the guide post 30, which in turn drives the second arc-shaped claw 17 to move closer to the first arc-shaped claw 15 along the adjusting groove 27 of the adjusting bracket 16, reducing the distance between the two claws. The core purpose of this design is to allow the first arc-shaped claw 15 and the second arc-shaped claw 17 to accurately grasp the outer periphery of the energy storage spring 2, rather than the end of the spring hanging hole 6, so as to avoid damage to the spring hanging hole 6 during the grasping process and improve the grasping stability. Then, when the first electric push rod 23 drives the push plate 24 to push the energy storage spring 2 to squeeze the material plate 25 and cause the material plate 25 to deflect downward around the hinge axis, the energy storage spring 2 disengages from the rectangular feeding frame 19 and falls into the clamping range of the first arc-shaped claw 15 and the second arc-shaped claw 17, thus completing the gripping. The second step is: the feeding motor 18 starts in reverse, and the drive equipment mounting frame 14 drives the first arc-shaped claw 15, the second arc-shaped claw 17 and the clamping energy storage spring 2 to rotate around the hinge axis, facing the side of the double-row synchronous conveyor belt 13. During rotation, the L-shaped transmission rod 29 slides in the opposite direction along the guide groove 31, driving the second arc-shaped claw 17 to move away from the first arc-shaped claw 15, increasing the distance between the two claws, and thus stretching the energy storage spring 2 straight. The purpose of this is to prevent the energy storage spring 2 from bending due to its own elasticity during the transfer process, which would cause the connection end with the fixed bracket 3 and the energy storage crank arm 4 to be misaligned. Furthermore, even when the first arc-shaped claw 15, in conjunction with the second arc-shaped claw 17, transfers the energy storage spring 2 to the side facing the double-row synchronous conveyor belt 13, waiting for precise alignment with the locking rod 8 of the fixed bracket 3 and the energy storage crank arm 4, the first arc-shaped claw 15 and the second arc-shaped claw 17 also cause the energy storage spring 2 to be in a stretched state. This stretched state is slightly longer than the normal extension length of the energy storage spring 2, and the shortest installation distance between the fixed bracket 3 and the energy storage crank arm 4 is also slightly longer than the normal extension length of the energy storage spring 2. This allows the energy storage spring 2 to be engaged with the locking rod 8 of the fixed bracket 3 and the energy storage crank arm 4 in a taut state, thereby reducing the possibility of the energy storage spring 2 loosening and falling due to its own weight or inertia when it is fixed between the fixed bracket 3 and the energy storage crank arm 4 at a normal or shorter extension length, thus improving the installation stability of the energy storage spring. The third step is: while the feeding motor 18 rotates in the opposite direction, the short rod 32 fixed at its shaft end synchronously drives the long rod 33 to deflect around the hinge shaft. The long rod 33 pushes the U-shaped limit frame 35 along the limit slide rod 34 to move closer to one side of the double-row synchronous conveyor belt 13, so that the top of the U-shaped limit frame 35 and the ends of the two spring hanging holes 6 of the energy storage spring 2 form a precise contact. By using the U-shaped limiting bracket 35 to abut and limit, the relative positions of the two spring hanging holes 6 can be fixed, preventing the energy storage spring 2 from twisting under tension, and ensuring that the locking rod 8 of the fixed bracket 3 and the energy storage crank arm 4 can be accurately aligned to achieve the pre-positioning effect. Next, by using a continuous action of positioning the reclosing switch body 1 and correcting and fixing the offset of the energy storage crank arm 4, the problem of alignment difficulties caused by the offset of the energy storage crank arm 4 in traditional assembly is solved: The first step is: when the reclosing switch body 1 moves to the position corresponding to the energy storage spring 2, the double-row synchronous conveyor belt 13 stops running. At this time, the third electric push rod 47 is started. The third electric push rod 47 drives the lifting platform 48 to move upward, lift the reclosing switch body 1 and separate it from the double-row synchronous conveyor belt 13, so that it moves between the I-beam slide bar 45 and the positioning push plate 43. Then the second electric push rod 42 is activated, which drives the positioning push plate 43 to move towards the reclosing switch body 1. The positioning ramp 44 on the positioning push plate 43 is guided by the ramp to push the reclosing switch body 1 towards the side of the I-shaped slide bar 45 until it comes into contact with the I-shaped slide bar 45 and squeezes the reset spring 46 to produce a contraction deformation. At this time, the positioning push plate 43 and the I-shaped slide bar 45 cooperate to form a bidirectional clamping, thereby fixing the reclosing switch body 1 in the center and preventing the body from shifting during subsequent assembly, which would cause the locking rod 8 to deviate from the alignment of the spring hanging hole 6. The second step is: Since the energy storage crank arm 4 lacks rigid constraint in the non-energy storage state, it is easy to deviate around the hinge axis under the action of external force, which causes its locking rod 8 to be unable to align with the spring hanging hole 6 of the energy storage spring 2. Therefore, this solution achieves angle adaptive correction through a gear linkage mechanism: by starting the adjustment motor 39, the adjustment motor 39 drives the first bevel gear 40 to rotate, the first bevel gear 40 meshes with the second bevel gear 41 to drive the adjustment bracket 16 to deflect around the hinge axis with the equipment mounting frame 14, and the deflection direction is opposite to the offset direction of the energy storage crank arm 4; During the deflection of the adjusting bracket 16, the transmission gear 38 connected to it meshes with the fixed gear 36 on the equipment mounting frame 14. Since the fixed gear 36 is fixed, the transmission gear 38 rotates on its own axis while revolving around the fixed gear 36. The rotating transmission gear 38 then meshes with the adjusting gear 37 on the outer periphery of the second arc-shaped pawl 17, causing the second arc-shaped pawl 17 to deflect synchronously. The purpose of this linkage structure is to adjust the bracket 16 so that the second arc-shaped claw 17 moves as a whole, bringing the energy storage spring 2 closer or further away from the energy storage crank arm 4. At the same time, the deflection of the second arc-shaped claw 17 itself can adjust the angle of the energy storage spring 2, ensuring that the end of one spring hanging hole 6 of the energy storage spring 2 is precisely aligned with the locking rod 8 of the offset energy storage crank arm 4, and preventing the energy storage spring 2 from bending due to forced pulling. The third step is: after the spring hanging hole 6 is aligned with the locking rod 8 of the fixed bracket 3 and the energy storage crank arm 4, continue to start the second electric push rod 42 to drive the centrally fixed reclosing switch body 1 to move towards the energy storage spring 2, so that the locking rod 8 on the fixed bracket 3 and the energy storage crank arm 4 are respectively inserted into the spring hanging holes 6 at both ends of the energy storage spring 2. During insertion, the locking ball 10 on the outer periphery of the locking rod 8 is squeezed by the inner wall of the spring hanging hole 6, retracts into the storage groove 9 and compresses the locking spring 11. When the locking rod 8 is fully inserted into the spring hanging hole 6, the locking ball 10 moves to the position of the annular locking groove 7. The locking spring 11 resets and pushes the locking ball 10 into the annular locking groove 7. Through the snap-fit ​​cooperation between the locking ball 10 and the annular locking groove 7, the energy storage spring 2 is quickly locked and fixed to the fixed bracket 3 and the energy storage crank arm 4 without the need for manual alignment and bolt tightening, which greatly improves the assembly efficiency. Finally, the testing phase begins. After assembly, the second electric push rod 42 resets, the reset spring 46 pushes the I-shaped slide rod 45 to reset the reclosing switch body 1, the energy storage spring 2 disengages from the first arc-shaped claw 15 and the second arc-shaped claw 17, the third electric push rod 47 resets, and the reclosing switch body 1 returns to the double-row synchronous conveyor belt 13. The double-row synchronous conveyor belt 13 starts and transfers the assembled reclosing switch body 1 to the testing station. When the reclosing switch body 1 is moved to the bottom of the detection unit 49, the double-row synchronous conveyor belt 13 stops, the third electric push rod 47 under the detection unit 49 starts, and drives the lifting platform 48 to lift the reclosing switch body 1 upward, so that the wiring terminal of the reclosing switch body 1 moves closer to the detection terminal 51. Then the fourth electric push rod 50 is activated. The fourth electric push rod 50 drives the detection terminal 51 to contact the wiring terminal of the reclosing switch body 1. The detection unit 49 performs power-on detection on the reclosing switch body 1 through the detection terminal 51 to verify whether the energy storage spring 2 is reliably engaged. If the engagement is not in place, it will cause abnormal operation of the energy storage transmission mechanism, which will then be reflected in the power-on parameters and whether the basic functions of the reclosing switch are normal. After the test is completed, the third electric push rod 47 and the fourth electric push rod 50 are reset, and the double-row synchronous conveyor belt 13 drives the reclosing switch body 1 to the next process, realizing a seamless connection between assembly and testing.

[0027] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A reclosing switch, characterized in that: The device includes a reclosing switch body (1), and the reclosing switch body (1) is provided with a spring operating mechanism. The spring operating mechanism includes an energy storage spring (2), a fixed bracket (3), an energy storage crank arm (4), and an energy storage transmission mechanism (5). One end of the energy storage spring (2) is symmetrically provided with spring hanging holes (6), and an annular locking groove (7) is opened on the inner side of the spring hanging holes (6). One end of the fixed bracket (3) and the energy storage crank arm (4) is provided with a locking rod (8) for matching the spring hanging hole (6). Four storage slots (9) are evenly opened on the outer periphery of the locking rod (8). Locking balls (10) are slidably arranged inside the storage slots (9), and locking springs (11) are fixedly connected inside the storage slots (9). When the locking rod (8) is inserted into the spring hanging hole (6), the locking spring (11) pushes the locking ball (10) into the annular locking groove (7) to achieve quick locking and fixing of the energy storage spring (2) with the fixed bracket (3) and the energy storage crank arm (4).

2. An automated production equipment for reclosing switches, used to produce the reclosing switch as described in claim 1, characterized in that: Includes a machine tool base (12), on which a double-row synchronous conveyor belt (13) is provided for driving the reclosing switch body (1) to move between multiple workstations. The machine tool base (12) is provided with multiple processing workstations, including an energy storage spring (2) assembly workstation and an inspection workstation. The energy storage spring (2) assembly station is equipped with an energy storage spring (2) feeding and alignment component, a claw adaptive adjustment component and a crank arm angle linkage adjustment component; The machine tool base (12) is rotatably provided with an equipment mounting bracket (14). One end of the equipment mounting bracket (14) is provided with a first arc-shaped chuck (15), and the other end of the equipment mounting bracket (14) is hinged with an adjustment bracket (16). The end of the adjustment bracket (16) near the first arc-shaped chuck (15) is provided with a second arc-shaped chuck (17), thereby forming the main body of the chuck adaptive adjustment component. The machine tool base (12) is also fixedly connected to a feeding motor (18). The output end of the feeding motor (18) is fixedly connected to the shaft end of the equipment mounting frame (14) to drive the equipment mounting frame (14) to drive the first arc-shaped claw (15) and the second arc-shaped claw (17) to deflect.

3. The automatic reclosing switch production equipment according to claim 2, characterized in that: The energy storage spring (2) feeding and alignment component includes a rectangular feeding frame (19) set at one end of the machine tool base (12). The rectangular feeding frame (19) is symmetrically equipped with a first conveyor belt (20) and a second conveyor belt (21). The first conveyor belt (20) and the second conveyor belt (21) are installed in a stacked manner, and the second conveyor belt (21) located below is longer than the first conveyor belt (20). The rectangular feeding frame (19) has a symmetrically arranged straightening inclined block (22) at the feeding end, and a first electric push rod (23) at the discharging end of the rectangular feeding frame (19). The output end of the first electric push rod (23) has a push plate (24) with the bottom of which is adapted to the arc surface of the energy storage spring (2). The discharge end of the rectangular feeding frame (19) is also symmetrically hinged with a feeding plate (25), and a tension spring (26) is hooked on the side of the feeding plate (25). The top of the tension spring (26) is hooked to the rectangular feeding frame (19).

4. The automatic reclosing switch production equipment according to claim 2, characterized in that: The adaptive adjustment component of the claw also includes an adjustment groove (27) provided on the adjustment bracket (16), an adjustment slider (28) is slidably connected inside the adjustment groove (27), and the second arc-shaped claw (17) is rotatably connected to the adjustment slider (28); One end of the adjusting slider (28) is fixedly connected to an L-shaped transmission rod (29), and a guide column (30) is also fixedly connected to the machine tool base (12). The guide column (30) is coaxially arranged with the output end of the feeding motor (18), and a guide groove (31) is provided on the outer periphery of the guide column (30). The end of the L-shaped transmission rod (29) slides inside the guide groove (31).

5. The automatic reclosing switch production equipment according to claim 2, characterized in that: The claw adaptive adjustment assembly also includes a short rod (32) fixed to the end of the shaft of the feeding motor (18), and a long rod (33) is hinged to the end of the short rod (32). A pair of limiting slide rods (34) are slidably connected on the machine tool base (12). A U-shaped limiting frame (35) is fixedly connected between the two limiting slide rods (34). One end of the U-shaped limiting frame (35) is hinged to the long rod (33), and the top of the U-shaped limiting frame (35) abuts against the ends of the two spring hanging holes (6) of the energy storage spring (2).

6. The automatic production equipment for reclosing switches according to claim 2, characterized in that: The crank arm angle linkage adjustment assembly includes a fixed gear (36) fixed on the equipment mounting frame (14), and the fixed gear (36) is coaxially arranged with the hinge shaft of the adjustment bracket (16). An adjusting gear (37) is fixedly provided on the outer periphery of the second arc-shaped chuck (17), and a transmission gear (38) is rotatably connected on the adjusting bracket (16). The transmission gear (38) meshes synchronously with the fixed gear (36) and the adjusting gear (37). An adjusting motor (39) is also fixedly connected to the equipment mounting frame (14). The output end of the adjusting motor (39) is fixedly connected to a first bevel gear (40), and the shaft end of the adjusting bracket (16) is fixedly connected to a second bevel gear (41) that meshes with the first bevel gear (40).

7. The automatic reclosing switch production equipment according to claim 2, characterized in that: Each of the aforementioned processing stations is equipped with a positioning component. The positioning component includes a second electric push rod (42) fixed on the machine tool base (12). The output end of the second electric push rod (42) is fixedly connected to a positioning push plate (43). The positioning push plate (43) has a positioning ramp (44) on the side facing the reclosing switch body (1). On the machine tool base (12), a symmetrical sliding I-beam slide rod (45) is slidably connected to the side opposite to the installation position of the second electric push rod (42), and a return spring (46) is sleeved on the outer periphery of the I-beam slide rod (45).

8. The automatic reclosing switch production equipment according to claim 7, characterized in that: The middle of the double-row synchronous conveyor belt (13) is provided with a third electric push rod (47) corresponding to multiple processing stations, and the output end of the third electric push rod (47) is fixedly connected to a lifting platform (48). When the reclosing switch body (1) moves to the end corresponding to the energy storage spring (2), the reclosing switch body (1) is located at the top of the lifting platform (48).

9. The automatic reclosing switch production equipment according to claim 2, characterized in that: The testing station is equipped with a testing unit (49), and a fourth electric push rod (50) is symmetrically arranged on the machine tool base (12). The output end of the fourth electric push rod (50) is equipped with a testing terminal (51), and the testing terminal (51) is connected to the testing unit (49) through wiring.

10. The automatic production equipment for reclosing switches according to claim 9, characterized in that: A third electric actuator (47) is provided below the detection unit (49), and a lifting platform (48) is fixedly connected to the output end of the third electric actuator (47). When the assembled reclosing switch body (1) is transferred to the detection unit (49), the third electric push rod (47) drives the lifting platform (48) to lift the reclosing switch body (1) upward, so that the wiring terminals of the reclosing switch body (1) move closer to the detection terminal (51).

Images