Automatic locking spring assembly unit

Abstract

The present invention discloses an automatic locking spring assembly unit, comprising a frame, a gripping mechanism and a conveying mechanism provided on the frame, a transfer mechanism provided between the conveying mechanism and the gripping mechanism, the gripping mechanism comprising a four-axis manipulator, a CCD positioning mechanism and a flexible vibration disk, the flexible vibration disk being connected to a feeding mechanism, the four-axis manipulator being located above the flexible vibration disk, the four-axis manipulator being provided with a gripping bracket, the gripping bracket being provided with a gripping block, the gripping block being slidably connected to the gripping bracket, the gripping block being provided with an adsorption block and a first positioning rod, the first positioning rod being located on one side of the adsorption block, the adsorption block being provided with an adsorption groove, the conveying mechanism being slidably connected to the frame, and replacing manual assembly with automated mechanical assembly, thereby reducing the labor of workers, reducing recruitment costs, and achieving high assembly efficiency.

Description

Technical Field

[0001] The invention belongs to the field of circuit breaker assembly equipment, and more particularly relates to an automatic locking spring assembly unit. Background Art

[0002] Existing miniature circuit breakers are equipped with a lock, which is the actuator for the thermal trip and electromagnetic trip of the circuit breaker. When the circuit breaker is connected to the current, the lock engages with the contact rod assembly on the circuit breaker. In order to prevent the lock and the contact rod assembly from accidentally tripping, a lock spring (flying wire) is installed on the rotating shaft of the circuit breaker handle in the prior art. When the lock engages with the contact rod assembly, the elastic force of the lock spring provides a certain amount of pressure on the lock, thereby preventing the lock from accidentally tripping and affecting the normal operation of the circuit.

[0003] like Figure 14 and Figure 15 As shown, a strip of elastic steel wire extends from one end of the latch spring. Before assembling the latch spring on the circuit breaker's handle shaft, the wire must be bent to impart elasticity. Conventional installation of the latch spring relies solely on manual assembly. Due to the small and long diameter of the latch spring wire, installation is difficult and requires high repetitiveness, resulting in high labor intensity, cumbersome manpower allocation, low efficiency, and significant management challenges. In recent years, rising labor costs have made recruitment difficult. Therefore, an automated device is needed to replace manual labor. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a lock spring assembly unit that replaces manual labor to automatically assemble circuit breaker components, while reducing worker labor and improving circuit breaker assembly efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic locking spring assembly unit, comprising a frame, a gripping mechanism and a conveying mechanism being provided on the frame, a transfer mechanism being provided between the conveying mechanism and the gripping mechanism, the gripping mechanism comprising a four-axis manipulator, a CCD positioning mechanism and a flexible vibration disk, the flexible vibration disk being connected to a feeding mechanism, the four-axis manipulator being located above the flexible vibration disk, a gripping bracket being provided on the four-axis manipulator, a gripping block being provided on the gripping bracket, the gripping block being slidably connected to the gripping bracket, an adsorption block and a first positioning rod being provided on the gripping block, the first positioning rod being located on one side of the adsorption block, an adsorption groove being provided on the adsorption block, and the conveying mechanism being slidably connected to the frame.

[0006] Furthermore, the transfer mechanism includes a transfer seat, a transfer block is slidably connected to the transfer seat, a thin air gripper and a positioning block are provided on the transfer block, a clamping block is provided on the thin air gripper, and a second positioning pin is provided on the positioning block.

[0007] Furthermore, the transport mechanism includes a mounting mainboard, a three-axis module is provided between the mounting mainboard and the frame, a clamping mechanism is provided on the mounting mainboard, and an adjustment mechanism is provided between the mounting mainboard and the clamping mechanism.

[0008] Furthermore, the feeding mechanism includes a vibrating loading tray and a flipping mechanism, the vibrating loading tray is connected to the flipping mechanism, the flipping mechanism is located between the flexible vibrating tray and the vibrating loading tray, and the flipping mechanism is located above the flexible vibrating tray.

[0009] Furthermore, a product conveying channel is provided on the frame, the transport mechanism is located above the product conveying channel, and the product conveying channel is used to convey the circuit breaker.

[0010] Furthermore, an assembly positioning mechanism is provided on the frame, and the assembly positioning mechanism is located above the product conveying channel. The assembly positioning mechanism includes a positioning bracket, and a positioning cylinder and a positioning plate are provided on the positioning bracket. The piston rod of the positioning cylinder is connected to the positioning plate, and the positioning plate is slidably connected to the positioning bracket. The positioning plate is provided with a positioning hole and a plurality of positioning pins.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the lock spring is conveyed to the flexible vibration disk by the feeding mechanism, the lock spring is dispersed by the flexible vibration disk, and then the position of the lock spring is scanned by the CCD positioning mechanism, and then the lock spring is grasped by the four-axis robot. The grasped lock spring is transferred to the transfer mechanism for transfer, and then the lock spring on the transfer mechanism is clamped by the clamping mechanism on the conveying mechanism and conveyed to the top of the circuit breaker. During the conveying process, the steel wire on the lock spring is bent by the clamping mechanism, and then the lock spring is assembled on the circuit breaker, that is, the assembly of the lock is completed, and the manual assembly is replaced by automated mechanical assembly, which reduces the labor of workers, reduces the recruitment cost, and has high assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional structural diagram of the automatic locking spring assembly unit of the present invention;

[0013] Figure 2 It is a structural diagram of the gripping mechanism in the assembly unit;

[0014] Figure 3 It is a structural diagram of a single grab block in the grab mechanism;

[0015] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0016] Figure 5 It is a structural diagram of the transport mechanism in the assembly unit;

[0017] Figure 6 It is a structural diagram of the clamping mechanism in the transport mechanism;

[0018] Figure 7 for Figure 6 Enlarged view of middle part B;

[0019] Figure 8 It is a structural diagram of the adjustment mechanism in the transport mechanism;

[0020] Figure 9 It is a structural diagram of the adjustment mechanism from another perspective;

[0021] Figure 10 It is a structural diagram of the transfer mechanism in the assembly unit;

[0022] Figure 11 It is a schematic diagram of the structure of a single transfer seat in the transfer mechanism;

[0023] Figure 12 It is a structural diagram of the turning mechanism in the feeding mechanism;

[0024] Figure 13 It is a structural diagram of the assembly positioning mechanism;

[0025] Figure 14 This is a schematic diagram of the assembly of the circuit breaker and the lock spring;

[0026] Figure 15 It is a structural diagram of the locking spring.

[0027] Reference numerals: 1. Frame; 11. Product conveying channel; 2. Grabbing mechanism; 21. Four-axis manipulator; 211. Grabbing bracket; 212. Grabbing block; 213. Adsorption block; 214. First positioning rod; 215. Adsorption groove; 216. First positioning pin; 217. Grabbing cylinder; 22. CCD positioning mechanism; 221. CCD camera; 23. Flexible vibration plate; 3. Transport mechanism; 31. Mounting main board; 32. Three-axis module; 33. Clamping mechanism; 331. Clamping plate; 332. Clamping motor; 333. Second positioning rod; 334. Third positioning pin; 335. Bending block; 336. First bending rod; 3361. Ring groove; 337. Second bending rod; 338. Origin sensor; 339. Photoelectric switch; 34. Adjustment mechanism; 341. Horizontal fine-tuning knob; 342. Vertical fine-tuning knob; 343. Longitudinal fine-tuning knob; 344. Horizontal moving block; 345. Vertical moving block; 346. Longitudinal moving block; 347. Adjustment seat; 4. Transfer mechanism; 41. Transfer seat; 42. Transfer block; 43. Thin air gripper; 44. Positioning block; 45. Second positioning pin; 46. Clamping block; 47. Clamping area; 5. Flipping mechanism; 51. Flipping frame; 52. Flipping frame; 53. Flipping cylinder; 6. Assembly positioning mechanism; 61. Positioning bracket; 62. Positioning plate; 63. Positioning cylinder; 64. Positioning hole; 65. Positioning pin; 7. Lock spring; 71. Steel wire; 72. Spring hole; 8. Circuit breaker; 81. Handle shaft; 82. Lock. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. Throughout the description of the present invention, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0030] Reference Figures 1 to 15 The present invention is further described.

[0031] An automatic locking spring assembly unit includes a frame 1, on which a grabbing mechanism 2 and a conveying mechanism 3 are provided, a transfer mechanism 4 is provided between the conveying mechanism 3 and the grabbing mechanism 2, the grabbing mechanism 2 includes a four-axis manipulator 21, a CCD positioning mechanism 22 and a flexible vibration disk 23, the four-axis manipulator 21 is located above the flexible vibration disk 23, the flexible vibration disk 23 is connected to a feeding mechanism, the four-axis manipulator 21 is provided with a grabbing bracket 211, the grabbing bracket 211 is provided with a grabbing block 212, the grabbing block 212 is slidably connected to the grabbing bracket 211, the grabbing block 213 and a first positioning rod 214 are provided on the grabbing block 212, the first positioning rod 214 is located on one side of the adsorption block 213, the adsorption block 213 is provided with an adsorption groove 215, the conveying mechanism 3 is slidably connected to the frame 1, and the conveying mechanism 3 is used to transport and assemble the locking spring 7 on the transfer mechanism 4.

[0032] like Figure 3 As shown, preferably, a grabbing cylinder 217 is provided on the grabbing bracket 211 , and a piston rod of the grabbing cylinder 217 is connected to the grabbing block 212 .

[0033] Preferably, the adsorption block 213 is connected to a vacuum generating device (not shown in the drawings), and the vacuum generating device provides adsorption force for the adsorption block 213 .

[0034] like Figure 2 As shown, preferably, the CCD positioning mechanism 22 includes a CCD camera 221 , and the CCD camera 221 is located above the four-axis manipulator 21 and is electrically connected to the four-axis manipulator 21 .

[0035] like Figure 4 As shown, preferably, a first positioning pin 216 is slidably connected in the first positioning rod 214, the first end of the first positioning pin 216 extends out of the first positioning rod 214, and the diameter of the first positioning pin 216 is slightly smaller than the diameter of the spring hole 72 of the locking spring 7, and a first compression spring (not shown in the drawings) is arranged between the first positioning pin 216 and the first positioning rod 214, that is, the first positioning pin 216 can elastically expand and contract in the first positioning rod 214.

[0036] like Figure 1 and Figure 2As shown, a plurality of locking springs 7 are conveyed to the flexible vibration disk 23 by a feeding mechanism, and then the plurality of locking springs 7 are dispersed on the flexible vibration disk 23 by vibration, so that the plurality of locking springs 7 are dispersed without overlap, and then the position of the locking spring 7 on the flexible vibration disk 23 is scanned by a CCD camera 221, and the position electrical signal of the locking spring 7 is transmitted to the four-axis manipulator 21, and then the four-axis manipulator 21 is operated so that the first positioning pin 216 on the first positioning rod 214 is aligned with the spring hole 72 of the locking spring 7, and at the same time, the position of the locking spring 7 on the adsorption block 213 is aligned with the spring hole 72 of the locking spring 7. The adsorption groove 215 is aligned with the steel wire 71 of the locking spring 7, and then the grabbing bracket 211 is lowered so that the grabbing block 212 is close to the grabbing locking spring 7, and then the grabbing cylinder 217 is started to extend the first positioning pin 216 and one end of the first positioning rod 214 is extended into the spring hole 72. At the same time, the steel wire 71 of the locking spring 7 is in conflict with the adsorption groove 215, and then the vacuum generating device is started so that the locking spring 7 is adsorbed on the adsorption block 213, and then the four-axis manipulator 21 runs again and transfers the locking spring 7 to the transfer mechanism 4, thus completing the grabbing of the locking spring 7.

[0037] like Figure 1 As shown, the frame 1 is also provided with a product conveying channel 11, and the transport mechanism 3 is located above the product conveying channel 11. A conveyor belt is provided on the product conveying channel 11, and a conveyor plate is provided on the conveyor belt. The conveyor plate is used to transport the circuit breaker 8 to a designated position. When the lock spring 7 is transferred to the transfer mechanism 4, the circuit breaker 8 to be assembled is transported to the designated position, and then the transport mechanism 3 grabs the lock spring 7 from the transfer mechanism 4, and then installs the lock spring 7 on the handle shaft 81 of the circuit breaker 8. After the assembly is completed, the conveyor belt transports the circuit breaker 8 to the next assembly station, that is, the automatic assembly process of the lock spring 7 is completed once. After the conveying mechanism 3 grabs the locking spring 7 on the transfer mechanism 4, the four-axis manipulator 21 will grab the locking spring 7 from the flexible vibration disk 23 again to the transfer mechanism 4, thereby cyclically assembling the locking spring 7 on the circuit breaker 8, thereby realizing the cyclic assembly of the locking spring 7, replacing manual assembly with automated assembly, reducing the labor of workers, reducing recruitment costs, and the automated assembly efficiency is high.

[0038] like Figure 10 and Figure 11As shown, the transfer mechanism 4 preferably includes a transfer seat 41, a transfer block 42 is slidably connected to the transfer seat 41, a thin air gripper 43 and a positioning block 44 are provided on the transfer block 42, two clamping blocks 46 are provided on the thin air gripper 43, a second positioning pin 45 is provided on the positioning block 44, and a clamping area 47 for clamping the steel wire 71 is formed between the two clamping blocks 46. The four-axis manipulator 21 transfers the lock spring 7 to the top of the transfer block 42 and close to the transfer seat 41, and the first positioning pin 216 on the first positioning rod 214 is aligned with the second positioning pin 45, and the adsorption groove 215 is aligned with the second positioning pin 45. The clamping area 47 is then operated by the grabbing cylinder 217 on the grabbing bracket 211, so that the first positioning pin 216 moves down and conflicts with the second positioning pin 45, and then the vacuum generator stops running, so that the locking spring 7 falls from the adsorption block 213, so that the spring hole 72 falls into the second positioning pin 45, and the steel wire 71 is located in the clamping area 47, and then the two clamping blocks 46 are driven by the thin cylinder to clamp and fix the steel wire 71 and wait for the conveying mechanism 3 to transport it, and the locking spring 7 is transferred by the transfer mechanism 4 to separate the grabbing and transporting of the locking spring 7, thereby avoiding the structural complexity of the mechanism and reducing the manufacturing production cost of the mechanism.

[0039] When the transport mechanism 3 clamps the locking spring 7 on the intermediate transfer seat 41, the locking spring 7 is first fixed to the transport mechanism 3 by the transport mechanism 3, and then the clamping claw is released by the thin air claw 43, so that the transport mechanism 3 can transport the locking spring 7.

[0040] Preferably, the diameter of the second positioning pin 45 is slightly smaller than the diameter of the spring hole 72 of the locking spring 7 .

[0041] like Figure 5 As shown, the preferred conveying mechanism 3 of this embodiment includes a mounting mainboard 31, a three-axis module 32 is arranged between the mounting mainboard 31 and the frame 1, and a clamping mechanism 33 is provided on the mounting mainboard 31, that is, the lock spring 7 is transported by the clamping mechanism 33, and the steel wire 71 of the lock spring 7 can be bent during the transportation process, and then the bent lock spring 7 is installed on the circuit breaker 8, the spring hole 72 of the lock spring 7 is located on the handle shaft 81 of the circuit breaker 8, and the steel wire 71 is in conflict with the lock 82, thereby generating a certain pressure on the lock 82 to prevent the lock 82 from accidentally disengaging when it is closed.

[0042] like Figure 6As shown, preferably, the clamping mechanism 33 includes a clamping plate 331, and the clamping plate 331 is provided with a clamping motor 332 and a second positioning rod 333, and the second positioning rod 333 is slidably connected to a third positioning pin 334, and one end of the third positioning pin 334 extends out of the second positioning rod 333, and a bending block 335 is provided on the main shaft of the clamping motor 332, and the bending block 335 is provided with a first bending rod 336 and a second bending rod 337, and the first bending rod 336 is located at one end of the bending block 335 away from the main shaft of the clamping motor 332, and the second bending rod 337 is located on the main shaft axis of the clamping motor 332. When the clamping mechanism 33 clamps the locking spring 7 on the transfer seat 41, the spring hole 72 of the locking spring 7 is located on the third positioning pin 334, and the steel wire 71 of the locking spring 7 respectively conflicts with the first bending rod 336 and the second bending rod 337, and the first bending rod 336 and the second bending rod 337 are respectively located on both sides of the steel wire 71.

[0043] When the clamping mechanism 33 clamps the locking spring 7 on the transfer mechanism 4, the clamping motor 332 rotates slightly in the opposite direction, so that the first bending rod 336 and the second bending rod 337 are respectively located on both sides above the steel wire 71, and then the grasping mechanism 2 is lowered, so that the steel wire 71 is located between the first bending rod 336 and the second bending rod 337, and then it is rotated slightly in the forward direction, so that the steel wire 71 is in conflict with the first bending rod 336 and the second bending rod 337, that is, the locking spring 7 is fixed to the grasping mechanism 2 through the third positioning pin 334, the first bending rod 336 and the second bending rod 337, and then during the transportation process, the clamping motor 332 continues to rotate forward, so that the steel wire 71 is bent around the second bending rod 337 under the rotation of the first bending rod 336, and when the transportation mechanism 3 transports the locking spring 7 to the top of the circuit breaker 8, the bending of the locking spring 7 is completed.

[0044] When the third positioning pin 334 contacts the handle shaft 81, the second positioning rod 333 is retracted, so that the spring hole 72 of the lock spring 7 is located on the handle shaft 81 until the steel wire 71 completely falls into the gap of the lock buckle 82. Then the clamping motor 332 is rotated in the opposite direction again until the steel wire 71 rebounds and contacts the lock buckle 82 and separates from the first bending rod 336. Then the main board 31 is moved upward, and the installation of the lock spring 7 is completed. The lock spring 7 is bent by the carrying mechanism 3 during the process of carrying the lock spring 7, without the need for manual installation of the lock spring 7 and the need to add a separate process and mechanism for bending the lock spring 7, thereby improving the assembly efficiency of the lock spring 7.

[0045] Preferably, a second compression spring (not shown in the drawings) is provided between the third positioning pin 334 and the second positioning rod 333, that is, the spring enables the third positioning pin 334 to be quickly extended and reset after retraction to avoid affecting the next assembly.

[0046] like Figure 7 As described, both the first bending rod 336 and the second bending rod 337 are provided with an annular groove 3361 for installing the steel wire 71, and the two annular grooves 3361 are located on the same horizontal plane, that is, when the clamping mechanism 33 clamps the locking spring 7, the two ends of the steel wire 71 are respectively located on the two annular grooves 3361, so that the steel wire 71 can be transported and installed horizontally, thereby improving the assembly efficiency and preventing the locking spring 7 from slipping off the clamping mechanism 33 during transportation, affecting the assembly of the locking spring 7.

[0047] like Figure 6 As shown, preferably, the upper end of the main shaft of the clamping motor 332 is connected to an origin sensing piece 338, and an opening is provided on the origin sensing piece 338. A photoelectric switch 339 is provided on one side of the clamping motor 332, and a part of the origin sensing piece 338 extends into the photoelectric switch 339. When the photoelectric switch 339 detects the opening, the clamping motor 332 stops rotating. The photoelectric switch 339 and the origin sensing piece 338 can be used to limit the rotation angle of the clamping motor 332 to prevent the locking spring 7 from being excessively bent and falling off from the clamping mechanism 33, thereby affecting the assembly efficiency of the locking spring 7.

[0048] like Figure 8 and Figure 9 As shown, preferably, an adjustment mechanism 34 is provided between the mounting main board 31 and the clamping mechanism 33, and the adjustment mechanism 34 includes a horizontal fine-tuning knob 341, a vertical fine-tuning knob 342, a longitudinal fine-tuning knob 343, a horizontal moving block 344, a vertical moving block 345, a longitudinal moving block 346 and an adjustment seat 347, and the adjustment seat 347 is fixedly connected to the mounting main board 31; the horizontal moving block 344 is connected to the clamping plate 331 and is laterally slidably connected to the vertical moving block 345, and the horizontal fine-tuning knob 341 is fixed on the vertical moving block 345; the vertical moving block 345 is connected to the longitudinal moving block 346, and the adjustment seat 347 is fixedly connected to the mounting main board 31; The blocks 346 are vertically slidably connected, and the vertical fine-tuning knob 342 is fixed on the longitudinal moving block 346; the longitudinal moving block 346 is longitudinally slidably connected to the adjustment seat 347, and the longitudinal fine-tuning knob 343 is fixed on the adjustment seat 347, that is, after turning the fine-tuning knob, each moving block can be pushed to move by the push rod, and the three moving blocks are all provided with locking bolts, that is, the moving blocks can be fixed after tightening the locking bolts. The clamping mechanism 33 can be fine-tuned in three directions through the above-mentioned adjustment mechanism 34, so that the locking spring 7 on the clamping mechanism 33 can be accurately installed on the circuit breaker 8, thereby improving assembly efficiency.

[0049] like Figure 1 As shown, the preferred feeding mechanism of this embodiment includes a vibrating loading tray and a flipping mechanism 5, the vibrating loading tray is connected to the flipping mechanism 5, the flipping mechanism 5 is located between the flexible vibrating tray 23 and the vibrating loading tray, and the flipping mechanism 5 is located above the flexible vibrating tray 23, and a feeding channel is provided between the vibrating loading tray and the flipping mechanism 5, and the locking spring 7 is transported to the flipping mechanism 5 through the feeding channel for a certain amount of storage. When the CCD camera 221 detects that there is no locking spring 7 in the flexible vibrating tray 23, the stored locking spring 7 is poured into the flexible vibrating tray 23 through the flipping mechanism 5, so that the locking spring 7 can be replenished in the flexible vibrating tray 23, and the locking spring 7 is temporarily stored through the flipping mechanism 5 to prevent the vibrating loading tray from continuously feeding the flexible vibrating tray 23 and affecting the scanning of the locking spring 7 in the flexible vibrating tray 23 by the CCD camera 221, and affecting the grasping of the four-axis manipulator 21.

[0050] like Figure 12 As shown, preferably, the flip mechanism 5 includes a flip bracket 51, a flip frame 52 is hinged on the flip bracket 51, and the end of the flip frame 52 facing the flexible vibration disk 23 is a flip opening, and a flip cylinder 53 is provided on the flip frame 52, and the piston rod of the flip cylinder 53 is hinged to the flip frame 52. When the flip cylinder 53 is operated, the piston rod of the flip cylinder 53 pushes the flip frame 52 to rotate upward toward the flexible vibration disk 23 on the flip bracket 51, so that the locking spring 7 in the flip frame 52 falls from the flip opening of the flip frame 52 into the flexible vibration disk 23 under the action of gravity, thereby realizing the feeding of the flexible vibration disk 23.

[0051] Preferably, a counting sensor is provided on the feeding channel, and the counting sensor is electrically connected to the vibrating loading tray, that is, the locking springs 7 entering the flip frame 52 are counted by the counting sensor. When the number reaches the set value, the counting sensor transmits an electrical signal to the entire loading tray, thereby causing the vibrating loading tray to vibrate and load. When the flip frame 52 is flipped, the locking springs 7 can be transported into the flip frame 52 again. The counting sensor can prevent too many locking springs 7 in the flip frame 52, resulting in the flexible vibration tray 23 being unable to shake out all the locking springs 7, affecting the grabbing of the locking springs 7.

[0052] like Figure 13As shown, in this embodiment, the frame 1 is preferably provided with an assembly positioning mechanism 6, which is located above the product conveying channel 11. The assembly positioning mechanism 6 includes a positioning bracket 61, and a positioning cylinder 63 and a positioning plate 62 are provided on the positioning bracket 61. The piston rod of the positioning cylinder 63 is connected to the positioning plate 62, and the positioning plate 62 is slidably connected to the positioning bracket 61. The positioning plate 62 is provided with a positioning hole 64 and a plurality of positioning pins 65. The positioning hole 64 corresponds to the lock 82 and the handle shaft 81 on the circuit breaker 8, and the plurality of positioning pins 65 correspond to the connecting holes on the circuit breaker 8. When the circuit breaker 8 is conveyed to the specified position by the product conveying channel 11, the positioning cylinder 63 is operated to move the positioning plate 62 downward, so that the positioning pins 65 extend into the connecting holes on the circuit breaker 8. After completion, the clamping mechanism 33 installs the bent lock spring 7 on the circuit breaker 8 through the positioning hole 64. The assembly positioning mechanism 6 is used to improve the assembly accuracy of the lock spring 7 and improve the assembly efficiency.

[0053] like Figure 3 、 Figure 5 and Figure 10 As shown, the grabbing bracket 211 is provided with a plurality of grabbing blocks 212. In this embodiment, three grabbing blocks 212 are preferably provided, and then there are three transfer blocks 42 and clamping mechanisms 33. When grabbing the locking spring 7, the four-axis manipulator 21 grabs the three locking springs 7 in turn through the grabbing blocks 212, and then places the three locking springs 7 on the three transfer seats 41 at the same time, and then clamps the three locking springs 7 at the same time through the three clamping mechanisms 33, and then installs them on the three circuit breakers 8 at the same time, that is, the assembly of the locking springs 7 of the three circuit breakers 8 can be completed at one time, thereby improving the assembly efficiency.

[0054] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic locking spring assembly unit, comprising a frame, characterized in that: The frame is provided with a grabbing mechanism and a conveying mechanism, a transfer mechanism is provided between the conveying mechanism and the grabbing mechanism, the grabbing mechanism includes a four-axis manipulator, a CCD positioning mechanism and a flexible vibration plate, the flexible vibration plate is connected to a feeding mechanism, the four-axis manipulator is located above the flexible vibration plate, the four-axis manipulator is provided with a grabbing bracket, the grabbing bracket is provided with a grabbing block, the grabbing block is slidably connected to the grabbing bracket, the grabbing block is provided with an adsorption block and a first positioning rod, the first positioning rod is located on one side of the adsorption block, the adsorption block is provided with an adsorption groove, and the conveying mechanism is slidably connected to the frame; The transport mechanism includes a mounting mainboard, a three-axis module is provided between the mounting mainboard and the frame, a clamping mechanism is provided on the mounting mainboard, and an adjustment mechanism is provided between the mounting mainboard and the clamping mechanism; The clamping mechanism includes a clamping plate, a clamping motor and a second positioning rod are provided on the clamping plate, a third positioning pin is slidably connected to the second positioning rod, one end of the third positioning pin extends out of the second positioning rod, a bending block is provided on the main shaft of the clamping motor, a first bending rod and a second bending rod are provided on the bending block, the first bending rod is located at one end of the bending block away from the main shaft of the clamping motor, and the second bending rod is located on the main shaft axis of the clamping motor; The transfer mechanism includes a transfer seat, a transfer block is slidably connected to the transfer seat, a thin air gripper and a positioning block are provided on the transfer block, a clamping block is provided on the thin air gripper, and a second positioning pin is provided on the positioning block; The frame is provided with a product conveying channel, the transport mechanism is located above the product conveying channel, the product conveying channel is used to convey the circuit breaker, the frame is provided with an assembly positioning mechanism, the assembly positioning mechanism is located above the product conveying channel, the assembly positioning mechanism includes a positioning bracket, the positioning bracket is provided with a positioning cylinder and a positioning plate, the piston rod of the positioning cylinder is connected to the positioning plate, the positioning plate is slidably connected to the positioning bracket, and the positioning plate is provided with a positioning hole and a plurality of positioning pins.

2. The automatic locking spring assembly unit according to claim 1, characterized in that: The feeding mechanism includes a vibrating feeding tray and a turning mechanism. The vibrating feeding tray is connected to the turning mechanism. The turning mechanism is located between the flexible vibrating tray and the vibrating feeding tray. The turning mechanism is located above the flexible vibrating tray.

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