Flyer spring automatic assembly apparatus

Abstract

The application discloses a flying wire spring automatic assembling equipment, and belongs to the technical field of automatic assembling of circuit breaker parts, and is used for solving the problems of low manual assembling efficiency and the like of the existing flying wire spring. The equipment comprises a rotating mechanism, a plurality of carrying clamps and various stations arranged along the rotating direction, the stations are sequentially a circuit breaker feeding station, a flattening station, a flying wire spring feeding station, a flying wire spring torsion station, an electric detection station, a waste product recycling station and a circuit breaker discharging station, and each station is correspondingly provided with an adaptive mechanism; the equipment further comprises a flying wire spring material taking and aligning device, which is used for completing material taking, attitude correction and qualified screening of the flying wire spring, and provides a standardized attitude part for the feeding device. The equipment realizes full automatic operation of flying wire spring assembling through control of the control system on the cooperative action of each mechanism, and manual intervention is not needed. The equipment has high assembling precision and high operation efficiency, can avoid part damage, realizes timely separation of unqualified products, and is suitable for large-scale and high-quality production requirements of circuit breakers.

Description

Technical Field

[0001] This invention relates to the technical field of circuit breaker component assembly equipment, and in particular to an automatic assembly equipment for fly wire springs. Background Technology

[0002] A flywire spring is a miniature torsion spring used in the operating mechanism of a circuit breaker. Its structure typically includes a spring coil and a spring retaining rod extending from one end of the spring coil. In a circuit breaker, the installation accuracy of the flywire spring directly affects the operational reliability and tripping performance of the operating mechanism. For example, Chinese utility model patent CN204348644U discloses a circuit breaker operating mechanism in which a flywire spring is sleeved and fixed on a mounting shaft. The spring retaining rod of this flywire spring needs to be installed sequentially with a limiting protrusion on the edge of the handle and a locking mechanism. Specifically, the locking mechanism has a first boss and a second boss on both sides, with the gap between the two bosses used to limit the spring retaining rod. Simultaneously, a third boss is provided at the bottom of the locking mechanism, and the end of the spring retaining rod needs to be tangential to the side wall of the third boss.

[0003] The circuit breaker with the above-mentioned structure has multiple locking requirements for the installation position of the fly wire spring, resulting in a complex installation path. However, the fly wire spring itself is characterized by its small size, low rigidity, and susceptibility to deformation, making it a typical difficult-to-assemble flexible component. In existing technologies, the assembly process of the fly wire spring relies entirely on manual operation. Operators must use simple tools such as tweezers to sequentially insert the spring coil onto the mounting shaft and sequentially engage the spring fixing rod with multiple bosses and gaps. This manual assembly method has many drawbacks: firstly, due to the small size and soft texture of the fly wire spring, manual handling and positioning are difficult, requiring a high level of operator skill; secondly, manual assembly is inefficient, failing to meet the needs of mass production, and the assembly quality is inconsistent, easily leading to circuit breaker malfunction or performance instability due to improper installation, thus affecting product yield. Summary of the Invention

[0004] The purpose of this invention is to overcome the problem that existing manual assembly methods cannot solve the problem of efficient, accurate, and standardized assembly of this type of special structure fly wire spring. This invention provides an automatic assembly equipment for fly wire springs, which realizes accurate, efficient, and stable assembly of fly wire springs, replacing the problems of low assembly efficiency, poor quality, and insufficient consistency caused by existing manual assembly methods, and meeting the actual needs of large-scale, high-quality production of circuit breakers.

[0005] The technical solution of this invention: The flywire spring includes a spring coil and a spring fixing rod extending from one end of the spring coil; the circuit breaker includes a handle, a mounting shaft for mounting the handle, a locking member, and a jumper. The locking member is provided with a mounting channel for inserting the spring fixing rod. A first protrusion is provided on the side of the locking member near the handle, and a third protrusion is provided on the side of the locking member away from the handle. The mounting channel is formed by connecting the space between the opposite side walls of the first and third protrusions and the space at the bottom of the side walls. The equipment includes: a rotary mechanism and multiple transport clamps mounted on the rotary mechanism for transporting the circuit breaker. The transport clamps perform intermittent cyclic movements along the transport direction via the rotary mechanism, and corresponding workstations are formed at the resting positions of the transport clamps. The workstations include a circuit breaker feeding workstation, a flywire spring loading workstation, a flywire spring torsion workstation, and a circuit breaker unloading workstation. A flywire spring loading workstation is provided with a flywire spring mounting rod. The feeding device clamps the fly wire spring into the circuit breaker in the transport fixture at the fly wire spring feeding station, and the spring coil of the fly wire spring is sleeved on the mounting shaft of the handle. A torsion positioning device is provided at the fly wire spring torsion station. The torsion positioning device includes a torsion core, a locking fastener, a jump-lock lifting member, and a lever mechanism. The locking fastener descends to contact and fix the locking fastener. The torsion core rotates around the mounting shaft of the handle and pushes the spring fixing rod near the spring coil to torsion at a preset angle so that the spring fixing rod near the spring coil enters the bottom side of the first boss of the locking fastener. The jump-lock lifting member descends to contact one end of the downward-pressing jump-lock member, so that the other end of the jump-lock member and the end of the spring fixing rod at the other end are lifted by force. After the jump-lock lifting member finishes its action, the lever mechanism performs a horizontal tossing action on the end of the spring fixing rod so that the lifted end of the spring fixing rod passes over the top surface of the third boss of the locking fastener and enters the mounting channel.

[0006] Using the above technical solution, an automated production line with cyclical intermittent motion is formed by setting up a rotary mechanism and multiple transport fixtures to sequentially transport circuit breakers to each workstation; the flying wire spring feeding device realizes the automatic sleeve of the spring coil onto the mounting shaft; the torsion positioning device, through the coordinated action of the locking fastener, torsion core, jump buckle lifting component, and lever mechanism, first fixes the locking component to eliminate the assembly datum misalignment problem, and then completes the step-by-step process of twisting the spring coil side spring fixing rod into the bottom side of the first boss, the jump buckle lifting to lift the end spring fixing rod, and the lever mechanism horizontally moving to make the end spring fixing rod pass the third The complete set of insertion actions for the top surface of the boss into the installation channel is adapted to the complex assembly structure of fly springs with multiple boss positions and narrow installation channels, ensuring that the spring fixing rod is accurately inserted into the installation channel and achieving a high degree of uniformity in the assembly position and preload of fly springs. This technical solution solves the technical problems of high assembly difficulty, low efficiency and inconsistent quality caused by the small and soft parts and multiple positions when manually assembling fly springs. It realizes the automated, standardized and large-scale assembly of fly springs from the spring ring to the precise insertion of the spring fixing rod, improving assembly efficiency and assembly consistency.

[0007] In one possible design, the lever mechanism includes a lever member with a transverse bottom groove on its bottom end face, shoulders on both sides of the transverse bottom groove, and a notched bevel on one bottom corner of the lever member in the horizontal movement direction; the transverse bottom groove is configured to allow the third boss to pass through, the shoulders abut against the spring fixing rod for actuation, and the notched bevel guides the spring fixing rod into the bottom side of the third boss after the actuation action.

[0008] The above design utilizes a horizontal bottom groove and abutments against the spring fixing rod for actuation. The horizontal bottom groove can also pass over the third boss, allowing for avoidance of interference during horizontal actuation. The two side shoulders precisely abut against the spring fixing rod, ensuring a stable actuation point and preventing slippage or displacement of the spring fixing rod during actuation. A special notched bevel provides flexible guidance after actuation, ensuring the spring fixing rod smoothly falls into the bottom of the third boss rather than being forcibly squeezed into place. This structure is suitable for narrow installation channels and prevents deformation and twisting of the soft spring, improving the stability of the actuation action and the success rate of insertion.

[0009] In one possible design, the lever mechanism further includes a lever clamp and an internal spring. The lever is movably mounted in the lever clamp, and the internal spring is installed in the lever clamp with its two ends abutting against the lever and the bottom of the lever clamp, respectively.

[0010] With the above design, the internal spring provides elastic buffering, forming a flexible buffered toggle structure. This allows the toggle lever to adaptively avoid contact with the third boss or the spring fixing rod, preventing damage or jamming of parts caused by rigid collisions and improving the smoothness and reliability of equipment operation. At the same time, the movable toggle lever can adapt to small height differences during assembly, accommodate the dimensional tolerances of different batches of circuit breakers, reduce the difficulty of equipment debugging, improve the assembly fault tolerance rate, and ensure the stability and safety of the toggle action.

[0011] In one possible design, the bottom end of the torsion core has a central groove and a circumferential groove. The central groove is used to accommodate the mounting shaft so that the torsion core and the mounting shaft are coaxial when they are engaged. The circumferential groove is located in the circumferential direction of the bottom end of the torsion core, and the groove wall of the circumferential groove abuts against the spring fixing rod near the spring ring during the movement of the torsion core.

[0012] The above design ensures accurate axis alignment during torsion by coaxially engaging the central groove with the mounting shaft, guaranteeing precise reference for the torsion action. The groove wall of the circumferential groove precisely fits against the spring fixing rod near the spring ring, resulting in uniform and stable torsion force. This design not only precisely controls the torsion angle, ensuring the spring fixing rod smoothly enters the bottom side of the first boss to complete the initial locking, but also prevents the soft fly wire spring from twisting, deforming, or breaking due to excessive force. Furthermore, it eliminates the need for additional alignment auxiliary structures, simplifying the torsion core structure and improving the accuracy and reliability of the torsion action.

[0013] In one possible design, the locking fastener includes a pressure rod and a buffer spring. The bottom side of the pressure rod is provided with an annular boss. The buffer spring is sleeved around the pressure rod, and the bottom end of the buffer spring abuts against the annular boss. The bottom end of the pressure rod is provided with a cone, which is inserted into the gap between the side of the locking fastener and the housing, so as to rotate the locking fastener so that it contacts and fixes itself.

[0014] The above design achieves flexible downward pressing and fixing through the cooperation of a buffer spring and a ring boss, abandoning the rigid pressing method and avoiding damage to precision parts such as the locking components and circuit breaker housing. At the same time, it ensures that the fixing force of the locking components is moderate, neither shifting nor being excessively squeezed and deformed. The cone at the bottom of the pressure rod is inserted into the gap between the side of the locking component and the housing. The inclined surface of the cone rotates the locking component so that it contacts and fixes itself, achieving stable limiting of the locking component. This structure achieves reliable fixing of the locking component in a limited space, providing a stable assembly foundation for subsequent torsional insertion.

[0015] In one possible design, the torsion positioning device further includes an action drive mechanism, which includes a first-step descent drive, a second-step descent drive, a horizontal shift drive, and a torsion drive. The lever mechanism is fixedly connected to the output shaft of the horizontal shift drive. The horizontal shift drive and the locking fastener are both fixedly connected to the output shaft of the second-step descent drive. The torsion core is fixedly connected to the output shaft of the torsion drive. The jump buckle lifting member, the torsion drive, and the second-step descent drive are all fixedly connected to the output shaft of the first-step descent drive.

[0016] By adopting the above design, the hierarchical cooperation of the first-step descent drive, the second-step descent drive, the horizontal shift drive, and the torsion drive enables the timing control of multiple actions such as core docking, latch fixing, buckle lifting, torsion, and tossing. This structure makes the actions of multiple actuators highly coordinated and clearly defined, avoiding interference and confusion between multiple components, ensuring the sequence and synchronization of each action of the torsion positioning device, and improving the stability and cycle efficiency of the assembly process.

[0017] In one possible design, the fly wire spring feeding device includes a feeding mechanism comprising openable fly wire grippers, a guide pin, a lower push sleeve, and a moving component for displacement. The fly wire grippers are spaced apart on one radial side of the guide pin, and the lower push sleeve is movably sleeved around the guide pin. During the fly wire spring clamping phase, the fly wire grippers move closer together to clamp the spring fixing rod, and the guide pin moves closer to and inserts into the spring coil so that the spring coil elastically sleeves onto the outer wall of the guide pin. During the fly wire spring releasing phase, the fly wire grippers move closer to each other... The action is to release the spring fixing rod, the guide pin moves to be coaxially aligned with the mounting shaft, and the lower push sleeve moves downward along the axial direction of the guide pin to push the spring ring sleeved on the guide pin and disengage from the guide pin; the flying wire spring feeding device also includes a magnetic attraction correction mechanism disposed at the flying wire spring feeding station, the magnetic attraction correction mechanism includes a magnetic attraction rod and a magnetic attraction drive for moving the magnetic attraction rod, the magnetic attraction rod is disposed on the output shaft of the magnetic attraction drive, and the magnetic attraction rod and the spring fixing rod generate a magnetic attraction to correct and determine the placement position of the spring fixing rod.

[0018] By employing the above design, a combination of actions—including clamping the spring fixing rod with a fly wire gripper, inserting a guide pin into the spring coil, and pushing the spring coil away from the guide pin with a lower push sleeve—stable clamping and precise release of small, soft fly wire springs are achieved. This design is suitable for the clamping characteristics of small-sized, soft fly wire springs, preventing deformation of the spring coil and bending of the spring fixing rod during clamping. A magnetic correction mechanism is added, utilizing the magnetic attraction between the magnetic rod and the spring fixing rod to correct and determine the placement angle of the spring fixing rod before release. This technology solves the technical problem of unstable handling and positioning of fly wire springs due to their small size and soft texture, ensuring accurate insertion of the spring coil onto the mounting shaft and correct placement of the spring fixing rod, thus improving feeding accuracy and reliability.

[0019] In one possible design, the moving component includes a rotary cylinder and a clamping cylinder, the wire feed gripper is configured as the output shaft of the clamping cylinder, the rotary output shaft of the rotary cylinder is fixedly connected to the cylinder body of the clamping cylinder, and the guide pin, the lower push sleeve and the rotary output shaft of the rotary cylinder are arranged coaxially.

[0020] By adopting the above design, the moving component structure of the feeding mechanism is optimized. The rotary cylinder and the clamping cylinder are coaxially linked, and the guide pin, the lower push sleeve, and the rotary output shaft are arranged coaxially, so that the wire feeding gripper can rotate around the guide pin, realizing flexible adjustment of the spring fixing rod position. This structure enables the wire spring to adjust its posture during the transfer process according to the assembly station requirements, adapting to the transfer posture conversion requirements from the material picking and positioning device to the circuit breaker installation position. The posture adjustment is precise and the response is fast, avoiding feeding failure and assembly misalignment caused by posture incompatibility, and further improving the smoothness and adaptability of the feeding process.

[0021] In one possible design, a fly wire spring picking and positioning device is also included. This device comprises a rotary table and multiple positioning clamps mounted on the rotary table for transporting the fly wire springs. The positioning clamps perform intermittent cyclic movements along the transport direction via a rotary mechanism, and corresponding working positions are formed at the resting positions of the positioning clamps. These working positions include a picking working position, an alignment working position, a correction working position, and a combined working position. A picking mechanism and a picking bin are provided at each picking working position. The picking mechanism clamps the fly wire springs from the picking bin to the positioning clamps at the picking working position. In the positioning fixture; an inner pushing mechanism is provided at the alignment work position, which pushes the end of the spring fixing rod in the corresponding positioning fixture to move the fly wire spring along the axial direction of the spring fixing rod to a preset initial position; a correction mechanism is provided at the correction work position, which performs a downward action to flatten the spring coil in the corresponding positioning fixture to a horizontal state; a straightening mechanism and a feeding mechanism are provided at the composite work position, the straightening mechanism performs an action to contact and push the spring coil in the corresponding positioning fixture to move the fly wire spring to the feeding position, and the feeding mechanism clamps the fly wire spring in the feeding position posture and feeds it out.

[0022] The above design utilizes a rotary table to drive a positioning fixture, enabling multi-station intermittent pre-processing. It divides the process into four main workstations: material handling, alignment, correction, and composite processing. This pre-processing automatically handles the entire process of handling fly wire springs, including material handling, axial alignment, coil leveling, and final alignment. This solves the problem of inconsistent loading postures caused by the small size, soft material, and disordered stacking of fly wire springs. Through internal adjusting, correction, and alignment mechanisms, the fly wire spring posture is standardized step-by-step, unifying the initial state before loading. This prevents subsequent loading and torsion processes from failing due to fly wire spring posture deviations, achieving full automation from material supply to assembly. It provides subsequent loading devices with fly wire springs of uniform posture and accurate position, ensuring the stability and success rate of the loading process. The elimination of manual handling of fly wire springs further reduces reliance on manual labor and improves the overall automation level and assembly accuracy of the equipment.

[0023] In one possible design, the positioning clamp includes a base and a clamping arm sliding on the base. A floating rod also movably passes through the base. The top of the floating rod is connected to the clamping arm via a rocker arm to drive the clamping arm to open and close. A return spring is sleeved on the bottom of the floating rod. The two ends of the return spring abut against the bottom end of the floating rod and the base respectively, so that the clamping arm can be elastically driven to close by the return spring. A push-drive component can be selectively provided below the floating rod. The push-drive component can lift the floating rod to ultimately drive the clamping arm to open. The positioning clamp also includes an upper lifting mechanism. The device includes a pressure-relieving shaft core, an upper top cylinder, an upper top rod, and an upper top drive component. The pressure-relieving shaft core is elastically movable within the upper top cylinder and is normally located at the top center of the upper top cylinder for inserting the guide needle. The upper top cylinder is fixedly connected to the upper top rod. The upper top rod is fitted with a return spring. The two ends of the return spring abut against the bottom end of the upper top rod and the seat body, respectively, so that the upper top rod is elastically driven to descend and return to its original position. The upper top drive component can be selectively positioned below the upper top rod and can lift the upper top rod to rise, thereby driving the upper top cylinder to rise and pushing the spring ring to rise and fit onto the outer wall of the guide needle.

[0024] The above design utilizes a floating rod, rocker arm, and return spring to form an elastic clamping arm opening and closing mechanism. Under normal conditions, the clamping arm closes thanks to the elastic force of the return spring, providing a gentle and uniform clamping force. This avoids damage to the soft fly spring from rigid clamping and ensures the fly spring remains stable and does not slip throughout the pre-processing stage. Additionally, an upper lifting mechanism is incorporated. Through the cooperation of a pressure-relief shaft and an upper lifting cylinder, the spring coil is elastically lifted and inserted when the guide pin is inserted. This structure achieves stable clamping and reliable release of the small fly spring, while ensuring smooth insertion and positioning accuracy of the guide pin into the spring coil, thus improving the transport stability and operational reliability of the pre-processing stage.

[0025] In one possible design, the workstation also includes a flattening station between the circuit breaker feeding station and the flying wire spring feeding station. The flattening station is equipped with a flattening mechanism that presses down on the top surface of the circuit breaker.

[0026] The above design solves the problem of warping and unevenness of components such as the casing and handle of the circuit breaker after loading due to transportation or previous processes. It ensures that the circuit breaker is in a stable initial posture before entering the fly wire spring loading station, providing a flat assembly benchmark for the subsequent accurate fitting of the spring ring onto the mounting shaft and the orientation correction of the spring fixing rod. This avoids loading failures caused by circuit breaker posture deviations and improves the stability and success rate of the loading process.

[0027] In one possible design, the workstation also includes an electrical inspection workstation and a scrap recycling workstation arranged sequentially between a fly wire spring torsion workstation and a circuit breaker discharge workstation; the electrical inspection workstation is equipped with an electrical inspection mechanism, which includes a flexible detection rod, a rigid detection rod, and an electrical inspection drive component that moves the two down towards the circuit breaker; the flexible detection rod is in contact with the end of a spring fixing rod, and the rigid detection rod is in contact with an installation shaft; the scrap recycling workstation is equipped with a scrap clamping mechanism and a scrap recycling area, and the scrap clamping mechanism clamps the unqualified circuit breakers detected by the electrical inspection mechanism at the scrap recycling workstation to the scrap recycling area.

[0028] The above design utilizes a combination of flexible and rigid detection rods in the electrical inspection mechanism to form a continuity detection circuit. This allows for quick and accurate determination of whether the flywire spring is properly installed. The flexible detection rod adapts to the soft characteristics of the spring fixing rod, avoiding contact damage, while precisely contacting the end of the spring fixing rod. The rigid detection rod maintains stable contact with the mounting shaft. Together, they achieve continuity testing after the flywire spring is torn into place, quickly screening out defective products. The waste clamping mechanism promptly transfers defective circuit breakers to the waste recycling area, separating defective products from qualified products. This prevents defective products from interfering with subsequent operations and facilitates post-processing analysis of defective products, optimizing assembly processes, further improving the automation integrity of the equipment and product assembly yield, and reducing manual sorting costs. Attached Figure Description

[0029] Figure 1 This invention relates to a schematic diagram of the structure of a circuit breaker; Figure 2 This is a structural block diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the device of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the device of the present invention. Figure 2 ; Figure 5This is a schematic diagram of the structure of the fly wire spring feeding device and the fly wire spring picking and straightening device of the present invention; Figure 6 This is a schematic diagram of the rotary mechanism and each workstation of the present invention; Figure 7 This is a partial structural diagram of the fly wire spring picking and straightening device of the present invention. Figure 1 ; Figure 8 This is a partial structural diagram of the fly wire spring picking and straightening device of the present invention. Figure 2 ; Figure 9 This is a top view of a portion of the structure of the fly wire spring picking and straightening device of the present invention; Figure 10 This is a schematic diagram of the positioning fixture of the present invention; Figure 11 This is a partial cross-sectional view (longitudinal section) of the positioning fixture of the present invention. Figure 12 This is a partial structural diagram of the positioning fixture of the present invention; Figure 13 For the present invention Figure 12 A sectional view (transverse section). Figure 14 This is a schematic diagram of the positioning fixture and feeding mechanism of the present invention; Figure 15 This is a schematic diagram of the release stage of the flying wire spring feeding device of the present invention; Figure 16 This is a schematic diagram of the clamping stage of the flying wire spring feeding device of the present invention; Figure 17 This is a schematic diagram of the feeding mechanism of the present invention; Figure 18 This is a partial structural diagram of the release stage of the flying wire spring feeding device of the present invention; Figure 19 This is a schematic diagram of the structure of the torsion insertion device of the present invention. Figure 1 ; Figure 20 This is a schematic diagram of the structure of the torsion insertion device of the present invention. Figure 2 ; Figure 21 This is a partial structural diagram of the torsion insertion device of the present invention in the second step state; Figure 22 This is a partial structural diagram of the torsion insertion device of the present invention in step three state; Figure 23 This is a schematic diagram of the twisting insertion device of the present invention in the fourth step state; Figure 24 This is a cross-sectional view of the lever mechanism of the present invention; Figure 25 This is a schematic diagram of the structure of the torsion core of the present invention; Figure 26 This is a schematic diagram of the structure of the locking fastener of the present invention; Figure 27 This is a schematic diagram of the electrical inspection mechanism of the present invention; Among them, 1. Torque positioning device; 11. Action drive mechanism; 111. First step descent drive component; 112. Second step descent drive component; 113. Horizontal displacement drive component; 114. Torque drive component; 12. Torque core; 121. Center groove; 122. Circumferential groove; 13. Locking fastener; 131. Pressure rod part; 1311. Ring boss; 132. Buffer spring; 133. Cone head; 14. Jump buckle lifting component; 141. Threaded cylinder; 15. Lever mechanism; 151. Lever component; 1511. Transverse bottom groove; 1512. Shoulder; 1513. Notched bevel; 152. Lever clamp; 153. Inner spring; 16. Arc extinguishing chamber fixing component; 2. Flying wire spring feeding device; 21. Feeding mechanism; 211. Flying wire transport gripper; 212. Guide pin; 213. Lower push sleeve; 22. Moving component; 221. Lifting cylinder; 222. Rotary cylinder; 223. Clamping cylinder; 224. Action module; 23. Magnetic suction correction mechanism; 231. Magnetic suction rod; 232. Magnetic suction drive component; 24. Pressing mechanism; 241. Pressing arm; 242. Pressing drive component; 3. Flying wire spring material handling and alignment device; 31. Rotary table; 311. Material handling station; 312. Alignment station; 313. Inspection station; 314. Calibration station; 315. Composite station; 316. Non-conforming material recycling station; 33. Material handling mechanism; 331. Material handling bin; 332. Light source; 333. Vibrator; 34. Internal shifting mechanism; 341. Internal shifting plate; 342. Internal shifting drive component; 35. Inspection mechanism; 351. Inspection probe; 352. Inspection drive component; 36. Calibration mechanism; 361. Elastic pressure bar; 362. Calibration drive component; 37. Alignment mechanism; 371. Pushing component; 372. Alignment drive component; 39. Recycling clamping mechanism; 391. Collection bin; 4. Positioning clamp; 41. Base; 411. Guide hole; 412. Longitudinal part; 413. Transverse part; 414. Track groove; 42. Clamping arm; 43. Floating rod; 44. Rocker arm; 45. Return spring; 46. Pushing drive component; 47. Upper pushing mechanism; 471. Pressure relief shaft core; 472. Upper pushing shaft cylinder; 473. Upper pushing rod; 474. Pressure relief spring; 475. Return spring; 476. Threaded component; 5. Flattening mechanism; 51. Flattening plate; 52. Flattening drive component; 6. Electrical testing mechanism; 61. Flexible testing rod; 62. Rigid testing rod; 63. Electrical testing drive component; 7. Waste clamping mechanism; 71. Waste recycling area; 8. Rotary mechanism; 81. Carrying fixture; 811. Circuit breaker feeding station; 812. Flattening station; 813. Flying spring feeding station; 814. Flying spring torsion station; 815. Electrical inspection station; 816. Scrap recycling station; 817. Circuit breaker discharging station; 10. Circuit breaker; 20. Handle; 30. Mounting shaft; 40. Locking fastener; 401. First boss; 402. Third boss; 403. Mounting channel; 50. Jump fastener; 501. Pressure end; 502. Actuating end; 60. Arc extinguishing chamber; 70. Housing; 80. Flying wire spring; 801. Spring ring; 802. Spring fixing rod. Detailed Implementation

[0030] like Figures 1 to 6 The illustrated automatic assembly equipment for fly wire springs is used to achieve fully automated assembly of fly wire springs 80 on circuit breakers 10. It covers the complete process of fly wire spring 80 material handling, orientation, precise feeding, twisting and positioning, and finished product discharge, adapting to the large-scale, high-precision assembly requirements of low-voltage circuit breakers 10. The fly wire spring 80 includes a spring coil 801 and a spring fixing rod 802 extending from one end of the spring coil 801. The circuit breaker 10 includes a handle 20, a mounting shaft 30 for mounting the handle 20, a locking element 40, and a jumper element 50. The locking element 40 is provided with an installation channel 403 for inserting the spring fixing rod 802. A first boss 401 is provided on the side of the locking element 40 near the handle 20, and a third boss 402 is provided on the side of the locking element 40 away from the handle 20. The installation channel 403 is formed by connecting the space between the opposite side walls of the first boss 401 and the third boss 402 and the space at the bottom of the side walls.

[0031] The equipment consists of a frame, a rotary mechanism 8, a transport fixture 81, a wire spring picking and straightening device 3, a wire spring feeding device 2, a torsion positioning device 1, and a control system. All components are mounted on the frame and the control system controls the timing of the actions to ensure that all mechanisms operate in coordination without interference.

[0032] I. Overall Structure Overview like Figures 2 to 6As shown, the rotary mechanism 8 adopts a rotary indexing plate, which is fixedly installed in the middle of the frame. It drives the rotary indexing plate to rotate intermittently in a preset direction. The rotation angle can be precisely adjusted by the control system to ensure that the transport fixture 81 can accurately stop at the corresponding work position after each rotation. Multiple transport fixtures 81 are provided and are evenly spaced and fixed on the edge of the rotary indexing plate. The interval angle between two adjacent transport fixtures 81 is consistent with the single rotation angle of the rotary indexing plate. Each transport fixture 81 is adapted to the shape and structure of the circuit breaker 10 and is provided with a positioning groove and an elastic pressure block to firmly clamp the circuit breaker 10 housing 70, prevent the circuit breaker 10 from shifting or shaking during assembly, and provide a stable reference for each assembly process.

[0033] Along the rotation direction of the rotary mechanism 8, the following workstations are arranged sequentially, each with a corresponding operating mechanism to form an assembly line: circuit breaker 10 feeding station 811, flattening station 812, fly wire spring feeding station 813, fly wire spring torsion station 814, electrical inspection station 815, waste recycling station 816, and circuit breaker 10 discharging station 817; among them, the fly wire spring feeding station 813 is connected to the fly wire spring picking and straightening device 3 on the side, which is used to provide fly wire springs with uniform posture for the feeding device. 80; The fly wire spring torsion station 814 is equipped with a torsion insertion device 1 to complete the precise torsion insertion of the fly wire spring; the flattening station 812 is equipped with a flattening mechanism 5, the electrical inspection station 815 is equipped with an electrical inspection mechanism 6, and the waste recycling station 816 is equipped with a waste clamping mechanism 7 and a waste recycling area 71; the circuit breaker 10 feeding station 811 and discharging station are respectively equipped with corresponding clamping devices to pick up and feed materials between the conveyor belt and the rotary mechanism 8, so as to realize the automatic feeding and discharging of the circuit breaker 10 without manual intervention.

[0034] II. Detailed Structure of Each Workstation and Corresponding Parts (a) Flying wire spring material handling and alignment device 3 like Figures 5 to 9 As shown, the fly wire spring picking and straightening device 3 is set next to the fly wire spring loading station 813. It is used to perform attitude preprocessing on the fly wire springs before loading. It undertakes the entire process of picking up, straightening, testing, feeding qualified fly wire springs and recycling unqualified fly wire springs 80, and provides qualified workpieces with standardized attitude for the subsequent fly wire spring loading device 2.

[0035] The main moving part of the material picking and positioning device is the rotary table 31. Multiple positioning clamps 4 are evenly spaced and fixed on the edge of the rotary table 31. The rotary table 31 is driven by a rotary indexing mechanism, which drives the positioning clamps 4 to perform intermittent cyclical movements along a preset conveying direction. The position where the positioning clamps 4 stop each time corresponds to a different working position. The working positions are arranged sequentially along the movement trajectory of the rotary table 31 as follows: material picking working position 311, alignment working position 312, detection working position 313, correction working position 314, composite working position 315, and unqualified recycling working position 316. The working positions cooperate to realize automated assembly line operation.

[0036] The rotary table 31 adopts a circular disc structure. The rotary indexing mechanism is fixedly connected to the center of the rotary table 31, driving the rotary table 31 to rotate intermittently. Each rotation angle is consistent with the interval angle of the positioning fixture 4, ensuring that the positioning fixture 4 stops accurately at each working position.

[0037] The material handling station 311 is equipped with a material handling mechanism 33 and two parallel material handling bins 331. The two material handling bins 331 can alternately supply materials to avoid interruption. A vibrator 333 is installed at the bottom of the material handling bin 331. When the vibrator 333 is working, it causes the material handling bin 331 to vibrate slightly, so that the fly wire springs 80 inside the bin are dispersed and arranged to avoid stacking and jamming. A light source 332 (such as an LED light board) is provided at the bottom of the material handling bin 331. The fly wire springs 80 are placed directly on the light source 332. The light source 332 provides backlighting to clearly show the quantity and specific position of the fly wire springs 80 inside the bin, which is convenient for the vision system or the material handling mechanism 33 to identify and locate. The material handling mechanism 33 can be a pneumatic gripper that moves above the material handling station 311 to clamp the fly wire springs 80 in the material handling bins 331 one by one, so that the fly wire springs 80 are parallel to the preset direction and accurately transferred to the positioning fixture 4 resting at the work station.

[0038] The alignment work station 312 is equipped with an inner shifting mechanism 34, which includes an inner shifting plate 341 and an inner shifting drive member 342. The inner shifting plate 341 is fixedly installed on the output shaft end of the inner shifting drive member 342. The end of the inner shifting plate 341 is smoothed to avoid scratching the spring fixing rod 802. The inner shifting drive member 342 drives the inner shifting plate 341 to move horizontally along the axial direction of the spring fixing rod 802 of the work station, applying a smooth shifting force to the end of the spring fixing rod 802 in the positioning fixture 4, pushing the fly wire spring to move axially to the preset initial position, providing an accurate axial reference for subsequent processes.

[0039] The inspection station 313 is located between the alignment station 312 and the calibration station 314, and includes an inspection mechanism 35. The inspection mechanism 35 comprises two spaced-apart inspection probes 351 and an inspection drive 352. The two inspection probes 351 are fixedly mounted on the output shaft end of the inspection drive 352, with the spacing matching the inspection point of the fly wire spring 80. The inspection drive 352 drives the inspection probes 351 to descend vertically, causing the two inspection probes 351 to contact the fly wire spring 80 in the positioning fixture 4, achieving electrical connection to complete the continuity test. Simultaneously, the inspection probes 351 apply a slight pressing force to the fly wire spring 80, achieving auxiliary positioning of the fly wire spring 80 and preventing spring displacement during the inspection process. The inspection mechanism 35 is used to quickly screen out fly wire springs 80 that fail the continuity test, preventing unqualified springs from entering subsequent material loading and assembly processes.

[0040] The calibration workstation 314 is equipped with a calibration mechanism 36, which includes an elastic pressure rod 361 and a calibration drive component 362. The elastic pressure rod 361 is fixedly installed on the output shaft end of the calibration drive component 362. The bottom end of the elastic pressure rod 361 is made of a flexible material (such as rubber) to avoid rigid contact damage to the spring coil 801. Since the spring coil 801 may warp or tilt during the incoming material or transfer process, the calibration mechanism 36 flattens the spring coil 801 by pressing down, flexibly flattening the tilted spring coil 801 in the positioning fixture 4, keeping the spring coil 801 in a horizontal state, and laying the posture foundation for the subsequent straightening process.

[0041] The composite workstation 315 is equipped with a aligning mechanism 37 and a feeding mechanism 21, which work together. The aligning mechanism 37 includes a pushing component 371 and a aligning drive component 372. The pushing component 371 is fixedly installed on the output shaft end of the aligning drive component 372. The aligning drive component 372 drives the pushing component 371 to move smoothly in the horizontal direction, contacting and pushing the spring coil 801 in the positioning fixture 4, and accurately moving the fly wire spring 80 to the preset feeding position. This preset feeding position is a standard clamping position specially set in the positioning fixture 4. The feeding mechanism 21 (usually part of the subsequent feeding device) clamps the fly wire spring 80 with the correct posture and sends it to the next process.

[0042] The non-conforming recycling station 316 is located between the composite operating station 315 and the material handling station 311. It is equipped with a recycling clamping mechanism 39 and a collection bin 391. The recycling clamping mechanism 39 (which can be a small pneumatic gripper) is fixed above the operating station and is used to clamp the non-conforming fly wire springs 80, remove them from the positioning clamp 4 and transfer them to the collection bin 391, so as to realize the separate collection and centralized processing of non-conforming products and avoid mixing with qualified springs.

[0043] The working process of the fly wire spring picking and leveling device 3 is as follows: 1. Material Retrieval Stage: The rotary table 31 drives the positioning clamp 4 to rotate intermittently to the material retrieval work position 311 and stop. The vibrator 333 at the bottom of the material retrieval bin 331 is started, causing the fly wire springs 80 in the bin to be arranged in a dispersed manner. The light source 332 assists in displaying the position of the springs. The material retrieval mechanism 33 is started, clamping the fly wire springs 80 in the material retrieval bin 331 and accurately transferring them into the flexible gripper of the positioning clamp 4. The gripper closes to achieve flexible clamping and complete the material retrieval action.

[0044] 2. Alignment stage: The rotary table 31 drives the positioning fixture 4 carrying the flying wire spring 80 to rotate to the alignment work position 312 and stop. The inner pusher drive 342 drives the inner pusher plate 341 to move axially along the spring fixing rod 802, pushes the end of the spring fixing rod 802, and pushes the flying wire spring 80 to move axially to the preset initial position, thus completing the axial alignment of the spring fixing rod 802.

[0045] 3. Inspection stage: The positioning fixture 4 rotates with the rotary table 31 to the inspection work position 313 and stops. The inspection drive component 352 drives the two inspection probes 351 to descend and make contact with the fly wire spring 80 to achieve electrical connection and complete the continuity test. At the same time, a slight pressing force is applied to the probes to assist in positioning. After the inspection is completed, the qualified signal is transmitted to the control system and the unqualified signal is recorded simultaneously. Subsequent correction, alignment, feeding and other operations will not run, but the subsequent recycling process will run.

[0046] 4. Calibration stage: The positioning fixture 4 rotates to the calibration work position 314 and stops. The calibration drive 362 drives the elastic pressure rod 361 to descend, flexibly flattening the spring ring 801 in the positioning fixture 4, so that the spring ring 801 is kept in a horizontal state, and the posture calibration of the spring ring 801 is completed.

[0047] 5. Alignment and feeding stage: The positioning fixture 4 rotates to the composite working position 315 and stops. The alignment drive 372 drives the pusher 371 to move horizontally. The pusher spring 801 moves the fly wire spring 80 to the feeding position. The feeding mechanism 21 starts, clamps the fly wire spring 80 with qualified posture at the feeding position, and transfers it to the subsequent feeding device to complete the pre-processing and feeding of qualified springs.

[0048] 6. Non-conforming recycling stage: If the inspection stage determines that the fly wire spring 80 is non-conforming, the positioning clamp 4 rotates to the non-conforming recycling work position 316 and stops. The recycling clamping mechanism 39 starts, clamps the non-conforming fly wire spring 80 in the positioning clamp 4, and transfers it into the collection bin 391. After recycling is completed, the positioning clamp 4 continues to rotate with the rotary table 31 to enter the next cycle operation.

[0049] like Figures 10 to 14As shown, the positioning clamp 4 in the above-mentioned material picking and positioning device specifically includes a base 41, a clamping arm 42, a floating rod 43, a return spring 45, and an upper lifting mechanism 47. The base 41 is fixed on the rotary table 31. Two clamping arms 42 are provided and are symmetrically slidably arranged in the track groove 414 at the top of the base 41. They can slide horizontally along the track groove 414 to open and close. The floating rod 43 is movably inserted through the guide hole 411 in the base 41. The top is hinged to the clamping arm 42 through the rocker arm 44. The bottom is covered with a return spring 45. The two ends of the return spring 45 abut against the limiting step at the bottom of the floating rod 43 and the bottom of the guide hole 411 of the base 41, respectively. Under normal conditions, it drives the clamping arm 42 to close together and form a clamping posture. The floating rod 43 is equipped with a push drive 46 corresponding to the material picking position 311, the inspection position 313, the composite position 315 and the unqualified recycling position 316. It can lift the floating rod 43 and drive the clamping arm 42 to open, so as to realize the reception and release of the fly wire spring 80.

[0050] The upper lifting mechanism 47 includes a pressure-relieving shaft core 471, an upper lifting cylinder 472, an upper lifting rod 473, and an upper lifting drive component. The upper lifting cylinder 472 is fixedly connected to the upper lifting rod 473. The upper lifting rod 473 is fitted with a return spring 475, which drives the upper lifting cylinder 472 to descend and return to its original position under normal conditions. The pressure-relieving shaft core 471 is elastically movable inside the upper lifting cylinder 472. A pressure-relieving spring 474 is provided at the bottom and is located at the center of the top side of the upper lifting cylinder 472 under normal conditions for the guide needle 212 to be inserted and positioned. The upper lifting drive component and the push drive component 46 share a single drive component. The output shaft of the drive component is threaded with an adjustable height threaded component 476. By adjusting the height of the threaded component 476, the travel difference between the opening of the clamping arm 42 and the upper lifting action can be compensated to ensure coordinated operation.

[0051] The working states of the fly wire spring positioning clamp 4 are as follows: 1. Initial state: Under normal conditions, the return spring 45 drives the floating rod 43 to descend through the elastic force, which in turn drives the two clamping arms 42 to merge through the rocker arm 44, and they are in a clamping standby state; the return spring 475 drives the upper push rod 473 and the upper push cylinder 472 to descend and return to their original positions, and the pressure relief shaft core 471 is located at the center of the top side of the upper push cylinder 472 under the support of the pressure relief spring 474; the output shaft of the drive component is in a retracted state, and the threaded component 476 is at the preset adjustment height.

[0052] 2. Spring Placement and Clamping: The fly wire spring 80 is placed on the positioning fixture 4 by the material picking mechanism 33 that clamps the fly wire spring 80; wherein, the output shaft of the push drive 46 extends to push the floating rod 43, driving the clamping arm 42 to open and receive the fly wire spring 80, and then the floating rod 43 is reset by the reset spring 45, and the clamping arm 42 symmetrically and flexibly clamps the spring from both sides of the spring fixing rod 802 to ensure that the spring is subjected to uniform force, has a regular posture, and is free from displacement and deformation.

[0053] 3. Spring Release: The push drive 46 lifts the floating rod 43 upward, compressing the reset spring 45. The floating rod 43, through the rocker arm 44, drives the two clamping arms 42 to move away from each other along the track groove 414 and open, releasing the fly wire spring 80 for subsequent process transfer. If the guide pin 212 needs to be inserted into the work position where the fly wire spring 80 is delivered, then before the spring is released, the guide pin 212 is aligned with the top of the pressure relief shaft core 471 and slowly inserted into the spring coil 801 of the fly wire spring 80. The pressure relief shaft core 471 can float slightly downward under the elastic action of the pressure relief spring 474, adapting to the elastic floating of the guide pin 212; the upper push drive (shared with the push drive 46) is activated, the output shaft rises, and the upper push is pushed by the threaded part 476. The top rod 473 rises, compressing the return spring 475, which in turn drives the upper top shaft cylinder 472 to rise. The upper top shaft cylinder 472 pushes the spring ring 801 to rise, so that the spring ring 801 is accurately fitted onto the outer wall of the guide pin 212, completing the auxiliary action of fitting the spring ring 801. Then, the clamping arm 42 releases the fly wire spring 80. Finally, the fly wire transporting claw 211 of the feeding mechanism 21 and the guide pin 212 jointly clamp the fly wire spring 80 in the correct posture and send it to the next process.

[0054] (ii) Flattening mechanism 5 like Figure 4 As shown, a flattening mechanism 5 is provided at the flattening station 812. The flattening mechanism 5 includes a flattening plate 51 and a flattening drive component 52. The bottom surface of the flattening plate 51 is provided with a contour-following structure that matches the top surface profile of the circuit breaker 10. The flattening drive component 52 (such as a cylinder or electric cylinder) drives the flattening plate 51 to descend, applying uniform downward pressure to the entire top surface of the circuit breaker 10 at this station. This flattens the components of the circuit breaker 10, such as the housing 70 and handle 20, to a preset position before entering the fly wire spring loading station 813. This eliminates warping or skewing that may occur during transportation or previous processes, ensuring a stable assembly reference for the subsequent loading of the fly wire spring 80, where the spring ring 801 is fitted into the mounting shaft 30 and the spring fixing rod 802 is aligned.

[0055] The downward stroke of the flattening drive 52 can be adjusted according to the height specifications of the circuit breaker 10. A flexible buffer layer (such as a rubber pad) can be provided on the bottom surface of the flattening plate 51 to avoid damage to the surface of the circuit breaker 10 housing 70 by rigid downward pressure. After the flattening action is completed, the flattening drive 52 drives the flattening plate 51 to rise and reset. The transport fixture 81 carries the flattened circuit breaker 10 to the flying wire spring loading station 813.

[0056] (III) Flying wire spring feeding device 2 like Figures 14 to 18As shown, the fly wire spring feeding device 2 is located at the fly wire spring feeding station 813, receiving qualified fly wire springs 80 from the material handling and alignment device and accurately transferring them to the mounting shaft 30 of the circuit breaker 10. It includes a feeding mechanism 21, which comprises a fly wire transport gripper 211, a guide pin 212, a lower push sleeve 213, and a moving assembly 22. The fly wire transport gripper 211 is movably mounted on one radial side of the guide pin 212, and the lower push sleeve 213 is movably fitted around the guide pin 212.

[0057] The moving component 22 includes a lifting cylinder 221, a rotating cylinder 222, a clamping cylinder 223, and a motion module 224 capable of translation and lifting. The output shaft of the lifting cylinder 221 is connected to the guide pin 212 to drive the guide pin 212 to descend and approach the spring coil 801. The wire feeding gripper 211 is configured as the output shaft of the clamping cylinder 223. The rotating output shaft of the rotating cylinder 222 is fixedly connected to the cylinder body of the clamping cylinder 223. The guide pin 212, the lower push sleeve 213, and the rotating output shaft of the rotating cylinder 222 are arranged coaxially. The feeding mechanism 21 is mounted on the motion module 224. The motion module 224 can adopt a linear guide rail and lead screw drive mechanism, a synchronous belt drive mechanism, or a linear motor, etc., to realize the multi-axis linkage motion of the feeding mechanism 21 in the horizontal and vertical directions.

[0058] The working process of the fly wire spring feeding device 2 is divided into three stages: Clamping Stage: The moving component 22 drives the feeding mechanism 21 to move to the material picking position, aligning the guide pin 212 with the spring coil 801 of the fly wire spring 80 to be picked up. At this time, the fly wire transport grippers 211 move closer to each other, clamping the spring fixing rod 802; simultaneously, the guide pin 212 moves closer to and inserts into the spring coil 801, causing the spring coil 801 to elastically fit over the outer wall of the guide pin 212. Since the inner diameter of the spring coil 801 is slightly smaller than the outer diameter of the guide pin 212, the spring coil 801 relies on its own elasticity to tightly fit over the guide pin 212 and will not slip off on its own.

[0059] During the transfer phase: The moving component 22 moves the feeding mechanism 21 and the clamped fly wire spring 80 from the picking position to the release position (i.e., above or to the side of the mounting shaft 30 of the circuit breaker 10 handle 20). Throughout this process, the fly wire spring 80 maintains a stable posture. When it is necessary to adjust the orientation of the spring fixing rod 802, the rotary cylinder 222 is activated, causing the fly wire clamping jaws 211 to rotate around the guide needle 212 to the required angle, so that the orientation of the spring fixing rod 802 matches the preset placement orientation on the circuit breaker 10.

[0060] Release Phase: The moving component 22 drives the feeding mechanism 21 to adjust its position, moving the guide pin 212 until it is coaxially aligned with the mounting shaft 30 of the handle 20 of the circuit breaker 10. Subsequently, the wire-carrying grippers 211 move away from each other, releasing the spring retaining rod 802; simultaneously, the lower push sleeve 213 moves downward along the axial direction of the guide pin 212, pushing the spring ring 801 sleeved on the guide pin 212, causing the spring ring 801 to detach from the guide pin 212 and accurately fit onto the mounting shaft 30 of the handle 20. The spring retaining rod 802 then falls to the preset position under the action of gravity and its own elasticity.

[0061] The fly wire spring feeding device 2 also includes a magnetic attraction correction mechanism 3623 disposed at the release position of the fly wire spring 80. The magnetic attraction correction mechanism 3623 includes a magnetic attraction rod 231 and a magnetic attraction drive 232 for moving the magnetic attraction rod 231. The magnetic attraction rod 231 is disposed on the output shaft of the magnetic attraction drive 232. The magnetic attraction rod 231 and the spring fixing rod 802 generate a magnetic attraction to correct and determine the placement position of the spring fixing rod 802. When the feeding mechanism 21 moves the fly wire spring 80 to the release position and the guide pin 212 is coaxially aligned with the mounting shaft 30, the magnetic attraction drive 232 drives the magnetic attraction rod 231 to approach the spring fixing rod 802. The magnetic attraction between the magnetic attraction rod 231 and the spring fixing rod 802 attracts the spring fixing rod 802 to the preset correct position, ensuring that it is in the accurate position before the spring coil 801 is released.

[0062] The magnetic attraction correction mechanism 3623 has two sets, located above and below the release position of the flywire spring 80. The magnetic rod 231 of the upper magnetic attraction correction mechanism 3623 approaches the spring fixing rod 802 at an angle, applying magnetic attraction force to the spring fixing rod 802 from above. The magnetic rod 231 of the lower magnetic attraction correction mechanism 3623 is positioned directly below the desired placement position of the spring fixing rod 802, applying magnetic attraction force to the spring fixing rod 802 from below. The two sets of magnetic attraction correction mechanisms 3623 work together to apply magnetic attraction force to the spring fixing rod 802 from different directions, ensuring that the spring fixing rod 802 is precisely corrected to the preset placement position before release.

[0063] The fly wire spring feeding device 2 further includes a pressing mechanism 24, which includes a pressing arm 241 and a pressing drive 242. The pressing arm 241 is mounted on the output shaft of the pressing drive 242, and the pressing contact position of the pressing arm 241 is located on the spring fixing rod 802 between the fly wire transport gripper 211 and the guide pin 212. During the fly wire spring release stage 80, when the fly wire transport gripper 211 moves away from the release spring fixing rod 802, the pressing drive 242 drives the pressing arm 241 to press down, pressing the middle position of the spring fixing rod 802 to prevent the spring fixing rod 802 from springing up or moving to the side due to its own elastic rebound.

[0064] The complete working process of the fly wire spring feeding device 2 is as follows: 1. Flywire spring clamping stage The motion module 224 drives the feeding mechanism 21 to move to the composite working position 315 of the flying wire spring 80 feeding position. The clamping cylinder 223 drives the flying wire grippers 211 to move closer and close to each other, clamping the spring fixing rod 802 of the flying wire spring 80. The synchronous guide pin 212 extends forward and inserts into the spring coil 801 of the flying wire spring 80. The spring coil 801 relies on its own elastic interference to fit over the outer wall of the guide pin 212, completing the stable clamping of the flying wire spring 80.

[0065] 2. Spring Transfer and Attitude Adjustment Stage The action module 224 drives the feeding mechanism 21, along with the clamped fly wire spring 80, to move horizontally, vertically, and to the fly wire spring 80 loading and release position; the rotary cylinder 222 is started as needed, driving the fly wire transport gripper 211 to rotate around the guide needle 212, adjusting the pointing position of the spring fixing rod 802 to match the subsequent assembly requirements.

[0066] 3. Orientation correction and spring release stage After the posture adjustment is completed, the upper and lower sets of magnetic attraction correction mechanisms 3623 are activated simultaneously. The magnetic attraction drive component 232 drives the magnetic attraction rod 231 to approach the spring fixing rod 802, using the magnetic attraction force to flexibly correct the spring fixing rod 802 to the preset position. Then, the action module 224 precisely moves, so that the guide pin 212 and the mounting shaft 30 of the circuit breaker 10 handle 20 are coaxially aligned. The clamping cylinder 223 drives the wire-carrying gripper 211 to move away from each other, releasing the spring fixing rod 802. The pressing mechanism 24 maintains a short-term pressing state. The lower push sleeve 213 slides down along the axial direction of the guide pin 212, smoothly pushing the spring ring 801 sleeved on the guide pin 212, so that the spring ring 801 is detached from the guide pin 212 and precisely coaxially sleeved on the mounting shaft 30 of the circuit breaker 10. After the sleeve is sleeved, each drive component is reset, and the device enters the next cycle of feeding process.

[0067] (iv) Twisting positioning device 1 like Figures 19 to 26 As shown, the torsion positioning device 1 is set at the torsion station 814 of the fly wire spring and is used to complete the torsion positioning of the fly wire spring 80, so that the spring fixing rod 802 is accurately engaged in the installation channel 403 of the locking member 40. Its structure includes a torsion core 12, a locking member 13, a jumper lifting member 14, a lever mechanism 15, an arc extinguishing chamber 60 fixing member 16, and an action drive mechanism 11.

[0068] The bottom end of the torsion core 12 is provided with a central groove 121 and a circumferential groove 122. The central groove 121 is used to accommodate the mounting shaft 30 of the circuit breaker 10 handle 20, ensuring that the torsion core 12 and the mounting shaft 30 are coaxially aligned. The circumferential groove 122 is located circumferentially at the bottom end of the torsion core 12. The groove wall can abut against the spring fixing rod 802 near the spring ring 801, causing it to twist at a preset angle, so that the spring fixing rod 802 enters the bottom side of the first boss 401 of the locking member 40.

[0069] The locking fastener 13 and the arc-extinguishing chamber 60 fastener 16 have similar structures, both including a pressure rod 131, a buffer spring 132, and a ring boss 1311. The buffer spring 132 is sleeved around the pressure rod 131, and its bottom end abuts against the ring boss 1311 to achieve flexible downward pressing and fixing. The bottom end of the locking fastener 13 is provided with a cone head 133, which can be inserted into the gap between the side of the locking fastener 40 and the housing 70. The locking fastener 40 is rotated so that it touches and fixes itself. The arc-extinguishing chamber 60 fastener 16 is used to press down and fix the arc-extinguishing chamber 60, and together with the locking fastener 13, they form a double fixation to eliminate assembly reference offset.

[0070] The jump buckle lifting part 14 adopts a threaded cylinder 141. Its telescopic rod can press down the pressure end 501 of the jump buckle 50, and use the lever principle to make the action end 502 of the jump buckle 50 lift up, which drives the end of the spring fixing rod 802 to lift up, leaving space for the push-in action.

[0071] The lever mechanism 15 includes a lever 151, a lever clamp 152, and an internal spring 153. The bottom surface of the lever 151 has a transverse bottom groove 1511, with shoulders 1512 formed on both sides of the transverse bottom groove 1511. A notched bevel 1513 is formed on one bottom corner of the lever 151 in the horizontal movement direction. The transverse bottom groove 1511 is configured to allow the third boss 402 to pass through. The shoulders 1512 abut against the spring fixing rod 802 for actuation. After actuation, the notched bevel 1513 guides the spring fixing rod 802 into the bottom side of the third boss 402. The lever 151 is movably and vertically mounted within the lever clamp 152. The internal spring 153 is installed in the lever clamp 152, with both ends abutting against the bottom of the lever 151 and the lever clamp 152, respectively.

[0072] The motion drive mechanism 11 includes a first-step descent drive 111, a second-step descent drive 112, a horizontal shift drive 113, and a torsion drive 114. The lever mechanism 15 is fixed on the output shaft of the horizontal shift drive 113. The horizontal shift drive 113, the locking fastener 13, and the arc-extinguishing chamber 60 fastener 16 are fixed on the output shaft of the second-step descent drive 112. The torsion core 12 is fixed on the output shaft of the torsion drive 114. The jump buckle lifting member 14, the torsion drive 114, and the second-step descent drive 112 are fixed on the output shaft of the first-step descent drive 111, realizing the timing coordination of each action.

[0073] The working process of the fly wire spring torsion positioning device 1 is as follows: Step 1: Overall coaxial alignment When the circuit breaker 10, after completing the loading of the fly wire spring 80, is transferred to the torsion station by the transport fixture 81 and stops, the first step descent drive component 111 is activated, driving the entire torsion positioning device 1 to move downwards until the center groove 121 at the bottom of the torsion core 12 is accurately engaged with the mounting shaft 30 of the handle 20 of the circuit breaker 10, achieving high-precision coaxial alignment between the torsion core 12 and the mounting shaft 30.

[0074] Step 2: Double Fixation Subsequently, the secondary descent drive 112 is activated, driving the locking fastener 13 and the arc-extinguishing chamber 60 fastener 16 to descend synchronously. The cone 133 at the bottom end of the pressure rod portion 131 of the locking fastener 13 first inserts into the gap between the locking fastener 40 and the housing 70, pressing the locking fastener 40 to eliminate shaking during assembly. The buffer spring 132 is compressed, providing moderate and stable downward pressure. The arc-extinguishing chamber 60 fastener 16 descends synchronously, and the bottom end of its pressure rod portion 131 abuts against and presses against the arc-extinguishing chamber 60, preventing the entire circuit breaker 10 housing 70 from shifting during assembly.

[0075] Step 3: Pre-raise the end of the jump buckle After the double fixing is completed, the jump buckle lifting component 14 (threaded cylinder 141) is activated, and the telescopic rod extends to press down on the pressure end 501 of the jump buckle 50. Due to the lever principle, the actuating end 502 of the jump buckle 50 tilts upward simultaneously, causing the end of the spring fixing rod 802 located at that end to lift slightly, reserving sufficient and controllable space for the subsequent push-in action of the lever mechanism 15.

[0076] Step 4: Synchronous Twist and Dip In Finally, the torsional drive 114 and the horizontal displacement drive 113 are activated simultaneously to achieve coordinated action.

[0077] Torsion action: The torsion drive 114 drives the torsion core 12 to rotate around the mounting shaft 30. The groove wall of the circumferential groove 122 at the bottom end of the torsion core 12 abuts against the spring fixing rod 802, pushing it to twist at a preset angle. The section of the spring fixing rod 802 near the spring ring 801 smoothly slides into the bottom side of the first protrusion 401 of the locking member 40, completing the initial limiting.

[0078] The engagement action: As the torsion core 12 twists, the horizontal displacement drive 113 drives the lever 151 to move horizontally. The shoulder 1512 on the bottom surface of the lever 151 abuts against the raised end of the spring fixing rod 802, smoothly pushing it towards the locking member 40. During this process, the third boss 402 of the locking member 40 passes through the transverse bottom groove 1511 of the lever 151 to avoid interference. When the end of the spring fixing rod 802 passes over the top surface of the third boss 402, under the combined action of the pushing force of the lever 151 and the self-resetting elastic force of the flywire spring 80, the end of the spring fixing rod 802 slides along the notched slope 1513 into the bottom side of the third boss 402, and finally stably abuts against the third boss 402.

[0079] Finally, the end of the spring fixing rod 802 abuts against the third boss 402 by the torsional restoring elastic force, and the spring fixing rod 802 near the spring ring 801 abuts against the bottom side of the first boss 401, completing the torsional insertion assembly of the flywire spring 80.

[0080] (v) Electrical inspection agency 6 and waste recycling agency like Figure 6 , 27 As shown, the electrical testing mechanism 6 is fixedly installed above the electrical testing station 815, and is used to perform continuity testing on the circuit breaker 10 after the flywire spring 80 is twisted into place, screening out unqualified finished products. The electrical testing mechanism 6 includes a flexible testing rod 61, a rigid testing rod 62, and an electrical testing drive component 63. The flexible testing rod 61 is made of an elastic conductive material (such as a spring probe or conductive rubber) and is used to contact the end of the spring fixing rod 802 of the flywire spring 80. The flexible structure can avoid damage to the soft spring fixing rod 802 by rigid contact. The rigid testing rod 62 is made of a metal probe and is used to contact the mounting shaft 30 of the circuit breaker 10. The electrical testing drive component 63 (such as a cylinder or electric cylinder) drives the flexible testing rod 61 and the rigid testing rod 62 to descend synchronously, so that both establish electrical connections with the end of the spring fixing rod 802 and the mounting shaft 30, respectively.

[0081] When the flywire spring 80 is correctly installed, the end of the spring fixing rod 802 forms a conductive circuit with the spring ring 801 and the mounting shaft 30 through the flywire spring 80 body (metal material). The electrical testing mechanism 6 can detect the continuity signal and judge it as qualified. If the flywire spring 80 is not installed correctly or is poorly installed, the circuit is not conductive and is judged as unqualified. After the electrical testing drive component 63 completes the test, it drives the test rod to rise and reset, and the test result is synchronously transmitted to the control system.

[0082] The waste recycling station 816 is located after the electrical inspection station 815. This station is equipped with a waste clamping mechanism 7 and a waste recycling area 71. The waste clamping mechanism 7 can be a pneumatic gripper, fixedly installed above the station, used to clamp circuit breakers 10 that have been determined to be defective by the electrical inspection station 815. When the positioning fixture 4, carrying the defective circuit breaker 10, stops at the waste recycling station 816, the waste clamping mechanism 7 activates, clamping the defective circuit breaker 10 and removing it from the transport fixture 81, then transferring it to the waste recycling area 71, thus achieving automatic rejection and centralized collection of defective products.

[0083] For circuit breakers 10 that pass electrical inspection, the scrap recycling station 816 does not operate, and the transport clamp 81 carries the qualified circuit breakers 10 to the circuit breaker 10 discharge station 817.

[0084] III. Equipment Workflow The workflow of this equipment is uniformly controlled by the control system, with each mechanism coordinating its actions according to a preset sequence. The specific steps are as follows: 1. Circuit breaker 10 feeding: The circuit breaker 10 is conveyed to the circuit breaker 10 feeding station 811 by the feeding conveyor belt. The transport clamp 81 performs a clamping action to firmly clamp and position the circuit breaker 10. Then, the slewing mechanism 8 rotates to move the transport clamp 81 holding the circuit breaker 10 to the flattening station 812.

[0085] 2. Circuit breaker 10 flattening: The transport clamp 81 drives the circuit breaker 10 to stop at the flattening station 812. The flattening drive 52 drives the flattening plate to descend. The buffer pad contacts the top surface of the circuit breaker 10 and applies a preset pressure, so that the components of the circuit breaker 10 fit tightly and are firmly positioned. Then the flattening plate rises and resets. The slewing mechanism 8 drives the circuit breaker 10 to the flying wire spring loading station 813.

[0086] 3. Flying wire spring 80 picking and positioning: The rotary table 31 of the picking and positioning device drives the positioning fixture 4 to rotate intermittently, completing the picking, alignment, detection, correction and positioning actions in sequence: The picking mechanism 33 clamps the flying wire spring 80 from the picking bin 331 to the positioning fixture 4, the inner pushing mechanism 34 realizes the axial alignment of the spring fixing rod 802, the detection mechanism 35 screens qualified springs, the correction mechanism 36 flattens the spring coil 801, and the positioning mechanism 37 moves the spring to the feeding position; the flying wire gripper 211 of the feeding mechanism 21 clamps the spring fixing rod 802, and the guide pin 212 inserts into the spring coil 801 to complete the clamping of the flying wire spring 80.

[0087] 4. Feeding of fly wire spring 80: The moving component 22 drives the feeding mechanism 21 to move to the fly wire spring feeding station 813, so that the guide pin 212 is coaxially aligned with the mounting shaft 30 of the circuit breaker 10 handle 20; the magnetic attraction correction mechanism 3623 is activated to correct and fix the position of the spring fixing rod 802; the pressing mechanism 24 presses down the spring fixing rod 802, the fly wire clamp 211 opens and releases the spring fixing rod 802, the lower push sleeve 213 moves along the axial direction of the guide pin 212, and the push spring ring 801 is disengaged from the guide pin 212 and sleeved on the mounting shaft 30; then, the feeding mechanism 21 resets and waits for the next material pick-up.

[0088] 5. Flying wire spring torsion positioning: The rotary mechanism 8 drives the circuit breaker 10 equipped with the flying wire spring 80 to move to the flying wire spring torsion position 814, and the actuation drive mechanism 11 operates in the following sequence: (1) The first step of the descent drive component 111 drives the whole body to descend, and the center groove 121 of the torsion core 12 is engaged with the mounting shaft 30 to achieve coaxial alignment; (2) The next step of the descent drive component 112 drives the locking fastener 13 and the arc-extinguishing chamber 60 fastener 16 to descend. The locking fastener 13 fixes the locking fastener 40, and the arc-extinguishing chamber 60 fastener 16 fixes the arc-extinguishing chamber 60, forming a double fixation. (3) The jumping buckle lifting part 14 presses down on the pressure end 501 of the jumping buckle part 50, causing the end of the action end 502 and the end of the spring fixing rod 802 to lift up; (4) The torsion drive 114 drives the torsion core 12 to rotate, pushing the spring fixing rod 802 to rotate at a preset angle, so that it enters the bottom side of the first boss 401; at the same time, the horizontal displacement drive 113 drives the lever mechanism 15 to move horizontally, the shoulder 1512 abuts against the end of the spring fixing rod 802, so that it passes over the top surface of the third boss 402, and enters the installation channel 403 under the guidance of the notched slope 1513, thus completing the torsion insertion.

[0089] 5. Continuity test: The rotary mechanism 8 drives the circuit breaker 10, which has completed the torsion and positioning, to the electrical inspection station 815. The electrical inspection drive component 63 drives the flexible detection rod 61 and the rigid detection rod 62 to descend, and they contact the end of the spring fixing rod 802 and the mounting shaft 30 respectively to form a continuity circuit. The control system detects the continuity status of the circuit and judges whether the circuit breaker 10 is qualified. The test results are recorded and transmitted to the control system simultaneously. After the test is completed, the detection rod rises and resets, and the rotary mechanism 8 drives the circuit breaker 10 to the scrap recycling station 816.

[0090] 6. Scrap Recycling and Finished Product Discharge: If the circuit breaker 10 passes the inspection, the scrap clamping mechanism 7 does not operate, and the rotary mechanism 8 drives the transport clamp 81 to transfer the qualified circuit breaker 10 to the circuit breaker 10 discharge station 817; if the circuit breaker 10 fails the inspection, the scrap clamping mechanism 7 operates, clamps the unqualified circuit breaker 10 and transfers it to the scrap recycling area 71 for centralized storage; subsequently, the transport clamp 81 is released, and the qualified circuit breaker 10 is sent out to the conveyor belt and transported to the next assembly process; at the same time, the empty transport clamp 81 continues to rotate with the rotary mechanism 8 and enters the next cycle operation.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to the above embodiments without departing from the principles of the present invention. For example, the rotary mechanism 8 can be replaced by a linear conveyor belt combined with a transfer mechanism instead of a circular rotary structure; each driving component can be selected from different power elements such as cylinders, electric cylinders, or servo motors according to actual needs; the number and arrangement of each workstation can be adjusted according to production cycle requirements; each spring part or elastic component can be selected from models with suitable elastic coefficients according to actual needs; the control system required by the equipment can preset the assembly parameters of different specifications of flying wire springs 80 and circuit breakers 10 to achieve rapid switching of multiple specifications of products and adapt to diverse production needs.

[0092] The automatic assembly equipment for fly wire springs disclosed in this application achieves fully automated operation of fly wire springs 80 from material picking, alignment, loading to twisting and positioning through the coordinated cooperation of various mechanisms. It solves the problems of low efficiency, poor accuracy, and easy damage to parts caused by manual assembly. The equipment has a high degree of automation, improves assembly accuracy and consistency, automatically rejects defective products, is compatible with multiple specifications of products, and can be widely used in the automated assembly station of fly wire springs 80 for various low-voltage circuit breakers 10.

Claims

1. An automatic assembly device for fly wire springs, wherein the fly wire spring (80) includes a spring coil (801) and a spring fixing rod (802) extending from one end of the spring coil (801); the circuit breaker (10) includes a handle (20), a mounting shaft (30) for mounting the handle (20), a locking member (40), and a jumper (50), wherein the locking member (40) is provided with an installation channel (403) for inserting the spring fixing rod (802), a first boss (401) is provided on the side of the locking member (40) near the handle (20), and a third boss (402) is provided on the side of the locking member (40) away from the handle (20), and the installation channel (403) is formed by connecting the space between the opposite side walls of the first boss (401) and the third boss (402) and the space at the bottom of the side walls; characterized in that, The device includes: The rotary mechanism (8) and a plurality of transport clamps (81) disposed on the rotary mechanism (8) for transporting the circuit breaker (10) are provided. The transport clamps (81) perform intermittent motion along the transport direction through the rotary mechanism (8) and form corresponding workstations at the resting positions of the transport clamps (81). The workstations include a circuit breaker (10) feeding workstation (811), a fly wire spring feeding workstation (813), a fly wire spring torsion workstation (814), and a circuit breaker (10) discharging workstation (817). A flying wire spring feeding device (2) is provided at the flying wire spring feeding station (813). The flying wire spring feeding device (2) clamps the flying wire spring (80) into the circuit breaker (10) in the transport fixture (81) on the flying wire spring feeding station (813), and the spring ring (801) of the flying wire spring (80) is sleeved on the mounting shaft (30) of the handle (20). A torsion insertion device (1) is provided at the torsion station (814) of the fly wire spring. The torsion insertion device (1) includes a torsion core (12), a locking fastener (13), a jumper lifting member (14), and a lever mechanism (15). The locking fastener (13) descends to contact and fix the locking member (40). The torsion core (12) rotates around the mounting shaft (30) of the handle (20) and pushes the spring fixing rod (802) near the spring ring (801) to twist at a preset angle so that the spring fixing rod (802) near the spring ring (801) enters the lock. On the bottom side of the first boss (401) of the fastener (40), the jump buckle lifting member (14) makes a downward movement to contact one end of the downward pressing jump buckle (50), so that the other end of the jump buckle (50) and the end of the spring fixing rod (802) at the other end are lifted by force. After the jump buckle lifting member (14) finishes its movement, the lever mechanism (15) makes a horizontal flicking movement on the end of the spring fixing rod (802) to flick the lifted end of the spring fixing rod (802) past the top surface of the third boss (402) of the fastener (40) and enter the installation channel (403).

2. The automatic assembly equipment for fly wire springs according to claim 1, characterized in that: The lever mechanism (15) includes a lever (151), the bottom end face of which is provided with a transverse bottom groove (1511), and the two sides of the transverse bottom groove (1511) are formed with shoulders (1512). The bottom corner of the lever (151) in the horizontal movement direction is provided with a notched slope (1513). The transverse bottom groove (1511) is configured to allow the third boss (402) to pass through. The shoulders (1512) abut against the spring fixing rod (802) for actuation. After the actuation action, the notched slope (1513) guides the spring fixing rod (802) into the bottom side of the third boss (402).

3. The automatic assembly equipment for fly wire springs according to claim 2, characterized in that: The lever mechanism (15) further includes a lever clamp (152) and an inner spring (153). The lever (151) is movably mounted in the lever clamp (152). The inner spring (153) is installed in the lever clamp (152) and its two ends abut against the bottom of the lever (151) and the lever clamp (152) respectively.

4. The automatic assembly equipment for fly wire springs according to claim 1 or 2, characterized in that: The bottom end of the torsion core (12) is provided with a central groove (121) and a circumferential groove (122). The central groove (121) is used to accommodate the mounting shaft (30) so that the torsion core (12) and the mounting shaft (30) are coaxial when they are engaged. The circumferential groove (122) is located in the circumferential direction of the bottom end of the torsion core (12). The groove wall of the circumferential groove (122) abuts against the spring fixing rod (802) near the spring ring (801) during the movement of the torsion core (12).

5. The automatic assembly equipment for fly wire springs according to claim 1 or 2, characterized in that: The locking fastener (13) includes a pressure rod (131) and a buffer spring (132). The bottom side of the pressure rod (131) is provided with an annular boss (1311). The buffer spring (132) is sleeved around the pressure rod (131), and the bottom end of the buffer spring (132) abuts against the annular boss (1311). The bottom end of the pressure rod (131) is provided with a cone (133). The cone (133) is inserted into the gap between the side of the locking fastener (40) and the housing (70) to rotate the locking fastener (40) so that it is fixed by contact.

6. The automatic assembly equipment for fly wire springs according to claim 1 or 2, characterized in that: The torsion positioning device (1) further includes an action drive mechanism (11), which includes a first-step descent drive (111), a second-step descent drive (112), a horizontal shift drive (113), and a torsion drive (114). The lever mechanism (15) is fixedly connected to the output shaft of the horizontal shift drive (113). The horizontal shift drive (113) and the locking fastener (13) are both fixedly connected to the output shaft of the second-step descent drive (112). The torsion core (12) is fixedly connected to the output shaft of the torsion drive (114). The jump buckle lifting member (14), the torsion drive (114), and the second-step descent drive (112) are all fixedly connected to the output shaft of the first-step descent drive (111).

7. The automatic assembly equipment for fly wire springs according to claim 1 or 2, characterized in that, The fly wire spring feeding device (2) includes a feeding mechanism (21), which includes an openable fly wire gripper (211), a guide pin (212), a lower push sleeve (213), and a moving component (22) for displacement. The fly wire gripper (211) is spaced apart on one radial side of the guide pin (212), and the lower push sleeve (213) is movably sleeved around the guide pin (212). During the clamping of the fly wire spring, the fly wire clamping claws (211) move closer to each other to clamp the spring fixing rod (802), and the guide pin (212) moves closer to and inserts into the spring coil (801) so that the spring coil (801) is elastically sleeved on the outer wall of the guide pin (212). During the release of the fly wire spring, the fly wire clamp (211) moves away from each other to release the spring fixing rod (802), the guide pin (212) moves to be coaxially aligned with the mounting shaft (30), and the lower push sleeve (213) moves downward along the axial direction of the guide pin (212) to push the spring ring (801) sleeved on the guide pin (212) and disengage from the guide pin (212). The fly wire spring feeding device (2) further includes a magnetic attraction correction mechanism (36) (23) disposed at the fly wire spring feeding station (813). The magnetic attraction correction mechanism (36) (23) includes a magnetic attraction rod (231) and a magnetic attraction drive (232) for moving the magnetic attraction rod (231). The magnetic attraction rod (231) is disposed on the output shaft of the magnetic attraction drive (232). The magnetic attraction rod (231) and the spring fixing rod (802) generate a magnetic attraction to correct and determine the placement position of the spring fixing rod (802).

8. The automatic assembly equipment for fly wire springs according to claim 7, characterized in that, The moving component (22) includes a rotary cylinder (222) and a clamping cylinder (223). The wire feeding gripper (211) is configured as the output shaft of the clamping cylinder (223). The rotary output shaft of the rotary cylinder (222) is fixedly connected to the cylinder body of the clamping cylinder (223). The guide pin (212), the lower push sleeve (213), and the rotary output shaft of the rotary cylinder (222) are arranged coaxially.

9. The automatic assembly equipment for fly wire springs according to claim 7, characterized in that, It also includes a fly wire spring picking and straightening device (3), which includes a rotary table (31) and multiple positioning clamps (4) set on the rotary table (31) for carrying fly wire springs (80). The positioning clamps (4) perform intermittent motion along the conveying direction through a rotary mechanism (8), and form corresponding working positions at the resting positions of the positioning clamps (4). The working positions include picking working positions (311), alignment working positions (312), correction working positions (314), and compound working positions (315). The material handling station (311) is provided with a material handling mechanism (33) and a material handling bin (331). The material handling mechanism (33) clamps the fly wire spring (80) in the material handling bin (331) into the positioning fixture (4) on the material handling station (311). An internal shifting mechanism (34) is provided at the alignment work position (312). The internal shifting mechanism (34) moves towards the end of the spring fixing rod (802) in the corresponding positioning fixture (4) so ​​that the flying wire spring (80) moves along the axial direction of the spring fixing rod (802) to the preset initial position. A calibration mechanism (36) is provided at the calibration work position (314). The calibration mechanism (36) performs a downward action to flatten the spring coil (801) in the corresponding positioning fixture (4) to a horizontal state. The composite work station (315) is provided with a straightening mechanism (37) and a feeding mechanism (21). The straightening mechanism (37) makes contact with and pushes the spring ring (801) in the corresponding positioning fixture (4) so ​​that the fly wire spring (80) moves to the feeding position. The feeding mechanism (21) clamps the fly wire spring (80) in the feeding position and feeds it out.

10. The automatic assembly equipment for fly wire springs according to claim 9, characterized in that, The positioning clamp (4) includes a base (41) and a clamping arm (42) sliding on the base (41). A floating rod (43) is also movably inserted inside the base (41). The top of the floating rod (43) is connected to the clamping arm (42) via a rocker arm (44) to drive the clamping arm (42) to open and close. A return spring (45) is sleeved on the bottom of the floating rod (43). The two ends of the return spring (45) abut against the bottom end of the floating rod (43) and the base (41) respectively, so that the clamping arm (42) is elastically driven to close by the return spring (45). A push-drive component (46) can be selectively provided below the floating rod (43). The push-drive component (46) can push up the floating rod (43) to finally drive the clamping arm (42) to open. The positioning clamp (4) also includes an upper lifting mechanism (47). The upper lifting mechanism (47) includes a pressure-relieving shaft core ( 471), upper top cylinder (472), upper top rod (473), and upper top drive component. The pressure-relieving core (471) is elastically movable inside the upper top cylinder (472) and normally located at the top center of the upper top cylinder (472) for insertion of the guide pin (212). The upper top cylinder (472) is fixedly connected to the upper top rod (473). The upper top rod (473) is sleeved with a return spring (475). The two ends of (475) respectively abut against the bottom end of the upper push rod (473) and the seat (41) so that the upper push rod (473) is elastically driven to fall back to its original position by the return spring (475). The upper push drive member can be selectively set below the upper push rod (473) and can push the upper push rod (473) to rise, so as to drive the upper push cylinder (472) to rise and push the spring ring (801) to rise and fit on the outer wall of the guide pin (212).

11. The automatic assembly equipment for fly wire springs according to claim 1 or 2, characterized in that, The workstation also includes a flattening workstation (812) between the circuit breaker (10) feeding workstation (811) and the flying wire spring feeding workstation (813). The flattening workstation (812) is equipped with a flattening mechanism (5), which presses down on the top surface of the circuit breaker (10).

12. The automatic assembly equipment for fly wire springs according to claim 1 or 2, characterized in that, The workstation also includes an electrical inspection workstation (815) and a waste recycling workstation (816) arranged sequentially between the fly wire spring torsion workstation (814) and the circuit breaker (10) discharge workstation (817); the electrical inspection workstation is equipped with an electrical inspection mechanism (6), which includes a flexible inspection rod (61), a rigid inspection rod (62) and an electrical inspection drive component (63) that drives the two to move down closer to the circuit breaker (10). The flexible inspection rod (61) is in contact with the end of the spring fixing rod (802), and the rigid inspection rod (62) is in contact with the mounting shaft (30); the waste recycling workstation (816) is equipped with a waste clamping mechanism (7) and a waste recycling area (71). The waste clamping mechanism (7) clamps the circuit breaker (10) that fails the electrical inspection workstation (815) and transfers it to the waste recycling area (71) for centralized storage.

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