Stator lead wire production line

Abstract

The present application relates to the technical field of stator wiring, and particularly relates to a stator lead production line, which comprises a wire arranging station, a wire shearing station, a wire connecting station, a protector riveting station and a sleeve heat shrinking station, each station is connected through a conveying line, and a wire connecting tool is arranged on the conveying line, the wire connecting tool comprises a tool tray and a tray jacking assembly, a stator is placed on the tool tray and transferred between the stations through the conveying line. The present application can realize shearing alignment and connection of different lead ends of the stator, reduce manual operation errors, realize automatic production by transferring the stator tool between the stations, improve production efficiency, automatically sleeve during the process of connecting the lead, do not need to reserve external lead finished products in advance, reduce the cost and time of goods storage, sleeve and heat shrink the connected lead connection, and improve the appearance and quality of the product.

Description

Technical Field

[0001] This invention relates to the field of stator wiring technology, and in particular to a stator lead wire production line. Background Technology

[0002] The stator in an electric motor requires external leads. These leads serve as the connection channel between the motor and the external power source, guiding three-phase AC or DC current into the stator windings to form a rotating magnetic field that drives the rotor. Currently, manual wiring cannot maintain the aesthetics, consistency, and accuracy of the product. Problems such as incorrect, missing, or loose connections sometimes occur, which can cause motor overload and increase the risk of winding burnout or insulation aging. Loose connections in the neutral or ground wires can also pose a risk of electric shock. In severe cases, the high temperatures generated by loose or incorrect connections can ignite surrounding flammable materials or cause circuit breakers or contactors to burn out. During manual operation, the enameled wire may also be scratched or chipped, affecting the overall product quality. Furthermore, over-reliance on manual operation results in low production efficiency, with an average daily output of less than 550 units per person. Therefore, an automated stator lead connection production line is needed to improve wiring efficiency and accuracy. Summary of the Invention

[0003] This invention solves the problems in related technologies and proposes a stator lead wire connection production line, which can realize the cutting and alignment of stator leads and the connection of different lead wire ends, reducing manual operation errors. The stator tooling flows between various workstations to achieve automated production and improve production efficiency. Automatic sleeve sleeve is provided during the lead wire connection process, eliminating the need to stockpile finished external wires in advance, reducing inventory and preparation costs and time. The connected lead wires are sleeved and heat-shrinked, improving the product's appearance and quality.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a stator lead wire production line, comprising:

[0005] At the cable management station, workers correctly place the stator onto the wiring fixture and organize the leads back into place;

[0006] The wire cutting station is equipped with a wire cutting mechanism for automatically cutting the lead wire;

[0007] The wiring station is equipped with multiple wiring mechanisms, including a wire feeding mechanism, a stripping mechanism, a first sleeve mechanism, and a riveting mechanism. The wire feeding mechanism moves along the Y-axis under the drive of the Y-axis drive mechanism. The wire feeding mechanism delivers the wire bundle to the stripping mechanism for stripping and cutting, and then through the first sleeve mechanism for sleeve, and delivers it to the wiring fixture for external connection of the lead wire. Finally, the terminal is riveted by the riveting mechanism.

[0008] The protector riveting station is equipped with a riveting mechanism for riveting thermal protectors;

[0009] The heat shrinking station is equipped with a second sleeve mechanism and a heat shrinking mechanism to perform sleeve and heat shrinking on the connected lead wire joints.

[0010] Inspection station, used to check whether products are qualified;

[0011] Each workstation is connected by a conveyor line, and the conveyor line is equipped with a wiring fixture. The wiring fixture includes a fixture tray and a tray lifting assembly. The fixture tray holds a stator and moves between the workstations via the conveyor line.

[0012] As a preferred embodiment, the wire-cutting mechanism includes:

[0013] Wire trimming machine frame;

[0014] A wire pressing assembly includes a wire pressing block and a wire pressing guide assembly. The wire pressing guide assembly is mounted on the wire pressing block via a pressure plate. The wire pressing guide assembly includes a first guide rod mounted on a first guide rod bracket and a first spring sleeved on the first guide rod. The first guide rod bracket is fixed to a wire cutting blade holder.

[0015] The wire cutting blade assembly includes a fixed wire cutting blade and a movable wire cutting blade. The movable wire cutting blade is connected to the wire cutting cylinder through a movable wire cutting blade holder, and the first guide rod bracket is fixed on the movable wire cutting blade holder.

[0016] The moving blade holder guide includes a first guide block disposed on both sides of the wire-cutting moving blade holder. The first guide block is mounted on the blade holder fixing plate and has a guide groove on the side near the wire-cutting moving blade holder. The shapes of the two ends of the wire-cutting moving blade holder match the shapes of the guide grooves and the two ends of the wire-cutting moving blade holder are located in the guide grooves.

[0017] A first gap adjusting component is disposed on the other side of the first guide block. The first gap adjusting component includes a first screw and a second screw. A first compression spring is sleeved on the first screw, and the other end of the first compression spring abuts in a countersunk hole on the first guide block. Both the first screw and the second screw are mounted on a screw mounting plate, and the second screw is also connected to the first guide block. The screw mounting plate is fixed to the tool holder fixing plate.

[0018] As a preferred embodiment, the wire feeding mechanism includes:

[0019] The feed roller is mounted on one side of the lower mounting plate;

[0020] The first straightening wheel assembly includes an upper row of straightening wheels mounted on an upper mounting plate and a lower row of straightening wheels mounted on a lower mounting plate. A second gap adjusting component is provided on the upper mounting plate to adjust the gap between the upper and lower straightening wheels. The second gap adjusting component includes an adjusting screw, an elbow clamp, and a second guide rod. The adjusting screw is a double-threaded screw, with one end connected to the upper mounting plate and the other end connected to the elbow clamp. The second guide rod passes through the top of the upper mounting plate and is fitted with a second spring.

[0021] A wire feeding wheel assembly is provided, driven by a wire feeding wheel drive assembly and with the spacing between the upper and lower rows of wire feeding wheels adjusted by a third gap adjusting component. The wire feeding wheel drive assembly includes a wire feeding motor, a first gearbox, and a first pulley assembly. The output shaft of the wire feeding motor is connected to the first pulley assembly. The first pulley assembly is connected to the lower row of wire feeding wheels via a first rotating shaft. The first pulley assembly is connected to the first gearbox via a second rotating shaft, and the first gearbox is connected to the upper row of wire feeding wheels via a third rotating shaft. The two first gearboxes are connected by two meshing first synchronous gears. The third gap adjusting component includes a first handle, a first tension spring, and a first clamping component. The first handle is mounted on the top of one of the first gearboxes. One end of the first tension spring is mounted on the bottom of the other first gearbox, and the other end is hooked onto a tension spring bracket. The first clamping component includes a clamping bolt and a limiting plate mounted on one side of the first gearbox. Rotating the clamping bolt clamps the limiting plate.

[0022] A wire harness swing assembly, the wire harness swing assembly including a swing head mounted on a swing head fixing seat by a torsion spring, and a guide sleeve installed inside the swing head.

[0023] As a preferred embodiment, the head-stripping mechanism includes:

[0024] The first wire clamping assembly includes wire clamping claws mounted on a first translation plate, the first translation plate being driven to translate by a first translation drive assembly;

[0025] The wire cutting assembly includes an upper cutter and a lower cutter. The upper cutter is mounted on an upper sliding plate via an upper cutter fixing seat, and the lower cutter is mounted on a lower sliding plate via a lower cutter fixing seat. The lower cutter fixing seat is connected to a rubber collection box. Both the upper and lower sliding plates are connected to a wire cutting motor via a cutter transmission assembly, thereby driving the upper and lower sliding plates to move towards each other or away from each other.

[0026] As a preferred embodiment, the first sleeve mechanism includes:

[0027] The first tube feeding assembly includes a tube feeding guide wheel, a first tube feeding wheel group, and a fourth gap adjusting component. The tube feeding guide wheel is mounted on one side of the tube feeding support via a guide wheel bracket. The first tube feeding wheel group includes at least two tube feeding wheels arranged side by side, and each tube feeding wheel is connected to the output shaft of a second gearbox. The input shaft of the second gearbox is connected to a feeding motor via a third pulley group. The fourth gap adjusting component includes a second handle, a second tension spring, and a tension adjusting component. The second handle is mounted on one side of the second gearbox, and the two ends of the second tension spring are respectively connected to two second gearboxes. The tension adjusting component includes an adjusting block mounted on the second gearbox and an adjusting screw mounted on the vertical plate.

[0028] The pipe cutting assembly includes a pipe cutting blade and a first pneumatic gripper. The pipe cutting blade is mounted on the two jaw blocks of the first pneumatic gripper via a pipe cutting blade seat. A limit block is provided between the two jaw blocks, and the limit block is fixed to one side of the first pipe feeding assembly.

[0029] The second translation plate is equipped with a first sleeve clamping jaw assembly and a second sleeve clamping jaw assembly, and translates under the drive of the second translation drive assembly.

[0030] After the first tube feeding assembly delivers the insulating sleeve to the required length, it is cut by the tube cutting assembly. The first sleeve clamping assembly and the second sleeve clamping assembly clamp the insulating sleeve and insert it into the stripped wire harness. The second sleeve clamping assembly clamps the front end of the insulating sleeve and inserts it 4mm~6mm in, then releases it, and the first sleeve clamping assembly holds it to continue inserting it.

[0031] As a preferred embodiment, the riveting mechanism includes a terminal crimping machine, a wire harness straightening gripper, and a second wire clamping assembly. The wire harness straightening gripper is installed on one side of the terminal crimping machine to hold the wire harness behind the sleeve for crimping the terminal. The second wire clamping assembly clamps the wire harness behind the sleeve and moves the wire harness to the terminal crimping machine under the drive of the X-axis linear module.

[0032] As a preferred embodiment, the second casing mechanism includes:

[0033] The second tube feeding assembly includes a second straightening wheel group and a second tube feeding wheel group. The second straightening wheel group adjusts the gap between the upper and lower straightening wheels through a second gap adjusting component. The second tube feeding wheel group includes a tube feeding drive wheel and a tube feeding driven wheel. The tube feeding drive wheel is mounted on the first support plate and rotated by the tube feeding drive assembly. The tube feeding driven wheel is mounted on the driven wheel fixing block through a driven wheel shaft. A cam is mounted on the driven wheel shaft through a quick-release pull tab. A quick-release screw is also mounted on the driven wheel shaft, and a third spring is sleeved on the quick-release screw.

[0034] The third set of pipe clamps is translated by a third translation drive component;

[0035] The tube cutting assembly is located below the third set of tube clamps and is driven by the tube cutting drive assembly to cut the heat shrink tubing;

[0036] Lead wire clamps are mounted on one side of the tube cutting assembly and are used to clamp stator leads;

[0037] The heat shrink tubing is straightened by the straightening roller assembly and then fed forward by the second tubing feeding roller assembly. When the length of the tubing reaches the required length of a single section of heat shrink tubing, the feeding action stops, the tubing cutting drive assembly drives the cutting assembly to cut the heat shrink tubing, the third tubing clamp clamps the heat shrink tubing and moves forward under the drive of the third translation drive assembly to deliver the heat shrink tubing to the lead wire clamp. The lead wire clamp holds the stator lead wire and then performs the tubing action.

[0038] As a preferred embodiment, the heat shrinking mechanism includes an upper heating air pipe and a lower heating air pipe, which are respectively connected to a blower via an upper air pipe and a lower air pipe, and are provided with a cover supported by a hot air bracket.

[0039] As a preferred embodiment, the tooling tray includes a positioning block, a lead wire clamping assembly, a stator support assembly, and a gripper assembly mounted on a tooling base plate. The positioning block is driven to rise and fall by a first cylinder. The positioning block has an L-shaped structure and a positioning groove. The lead wire clamping assembly is used to clamp the lead wire and includes several clamping block groups mounted on a vertical plate. Each clamping block group includes two clamping blocks. A fourth spring is installed between the two clamping blocks, and the two ends of the fourth spring are installed in the countersunk holes of the clamping blocks. A second pin is also provided between the two clamping blocks. The stator support assembly is used to place the stator and includes a stator support block and a coil pad block. A V-shaped groove is formed on the top of the stator support block, and an arc-shaped groove is formed on the top of the coil pad block. The gripper assembly opens with the gripper. The components are connected and driven by the gripper opening assembly to open or close the gripper. The gripper opening assembly includes a gripper pull rod, a gripper latch, and a gripper opening cylinder. The gripper pull rod is fitted with a fifth spring. The piston rod end of the gripper opening cylinder is connected to the first end of the gripper latch. The first end of the gripper pull rod has a T-shaped structure and the second end is connected to a spacer. The second end of the gripper latch forms a limiting slot, and the first end of the gripper pull rod is installed in the limiting slot. The gripper latch has an oblong hole along its length, and the limiting rod passes through the oblong hole. The lead wire gathering assembly is used to gather the lead wire and includes a V-shaped gathering member. The two ends of the gathering member are fixed to the gathering member fixing block, and the gathering member fixing block is installed on the tooling base plate.

[0040] As a preferred embodiment, the tooling lifting assembly is installed on the support frame of the conveyor line and includes a lifting cylinder and a lifting plate. The lifting cylinder is installed on a cylinder fixing plate and connected to the lifting plate through a connector. The lifting plate is equipped with a lifting block and a positioning pin. The tooling base plate is provided with positioning holes that match the position and shape of the positioning pins. Sensing brackets and blocking components are installed on the support frame of the conveyor line corresponding to each workstation. The sensing brackets and blocking components are distributed on both sides of the tooling lifting assembly.

[0041] Compared with the prior art, the beneficial effects of the present invention are:

[0042] (1) The present invention can realize the cutting and alignment of stator leads and the connection of different lead ends, reduce manual operation errors, and the stator tooling can be transferred between each station to realize automated production and improve production efficiency. Automatic sleeve is used during lead connection, eliminating the need to stock external wiring finished products in advance, reducing inventory storage costs and time. The connected lead connection is sleeved and heat-shrinked, improving the product's appearance and quality.

[0043] (2) In the wire cutting mechanism of the present invention, the wire pressing block and the wire cutting blade can be driven by only one wire cutting cylinder. Compared with the structure in which the two are driven by two cylinders respectively, one cylinder can be saved and the cost of the cylinder can be reduced. Guide members for the moving blade seat are provided on both sides of the moving blade seat to constrain the movement trajectory of the moving blade seat during the lifting process and avoid the moving blade from deflecting.

[0044] (3) The wire feeding mechanism is equipped with a wire harness swing component, which can adapt to small fluctuations in working conditions and can also adapt to the bending amplitude of the wire end brought by the wire cutting component in the subsequent stripping process, so as to ensure that the wire cutting cut is flat and the wire end is not bent.

[0045] (4) The spacing between the straightening wheel group and the wire feeding wheel group can be adjusted to accommodate wire harnesses of different diameters. The elbow clamp and the clamping part prevent the gap between the upper and lower rows of straightening wheels and wire feeding wheels from changing under vibration conditions. The first tension spring provides a continuous downward pre-tightening force, so that the upper row of wire feeding wheels always maintains a downward contact trend, which can adapt to wire harnesses of different diameters and ensure that the contact pressure between the wire harness and the wheel body is uniform and stable during the wire feeding process.

[0046] (5) When sleeve is used, two sets of clamps are used to hold the sleeve. The second sleeve clamp assembly at the front end clamps and inserts it a few millimeters, so that the pipe opening is not easily deviated, which makes it easy to center the insulating sleeve and easy to insert.

[0047] (6) Both insulating sleeves and heat shrink tubing are fed through a feeding mechanism. The insulating sleeve disc or heat shrink tubing disc is placed on the feeding bracket and locked with a fast locking head on a smooth rod to prevent slippage during the tubing release process.

[0048] (7) The gap between the tube feeding drive wheel and the tube feeding driven wheel can be opened instantly by turning the cam, which makes tube threading more efficient. The spring preload can also be adjusted by the quick-release screw to adapt to heat shrink tubing of different diameters. The operation is efficient. The tube cutting motor drives the eccentric wheel, and one rotation completes one tube cutting. The action is precise and the rhythm is stable. The guide blocks on both sides limit the cutting plate, and the operation is free from deviation and jamming, so that the cut is flat.

[0049] (8) The tooling pallet is accurately positioned by the cooperation of the induction bracket and the blocking component, and by the cooperation of the positioning pin on the tooling lifting component and the positioning hole at the bottom of the tooling base plate; the tooling pallet is positioned by the push of the gripper opening cylinder to push the gripper pull rod and the drive block upward, thereby opening the two gripper blocks. When the piston rod of the gripper opening cylinder is reset, the two gripper blocks are reset and clamped under the action of the fifth spring. The action response is fast and the clamping force is stable. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 This is a schematic diagram of the wire-cutting mechanism of the present invention;

[0052] Figure 3 This is a schematic diagram of the wire cutting mechanism of the present invention after the wire cutting frame has been removed;

[0053] Figure 4 This is a schematic diagram of the wiring mechanism of the present invention;

[0054] Figure 5 This is a schematic diagram of the wire feeding mechanism of the present invention;

[0055] Figure 6 This is a schematic diagram of the structure of the wire harness swing assembly of the present invention;

[0056] Figure 7 This is a schematic diagram of the structure of the second gap adjusting member and the first straightening wheel set of the present invention;

[0057] Figure 8 This is a schematic diagram showing the positional relationship between the wire feed wheel drive assembly, the third gap adjustment component, and the belt tension adjustment mechanism of the present invention;

[0058] Figure 9 This is a schematic diagram showing the positional relationship between the stripping mechanism and the wire feeding mechanism of the present invention;

[0059] Figure 10 This is a schematic diagram of the wire clamping claw of the present invention;

[0060] Figure 11 This is a schematic diagram of the structure of the tangent assembly of the present invention;

[0061] Figure 12 This is a schematic diagram of the structure of the first sleeve mechanism of the present invention;

[0062] Figure 13 This is a schematic diagram of the structure of the first tube feeding assembly of the present invention;

[0063] Figure 14 This is a schematic diagram of the structure obtained by the pipe cutting assembly of the present invention;

[0064] Figure 15 This is a schematic diagram showing the connection relationship between the second clamping component and the X-axis linear module of the present invention;

[0065] Figure 16 This is a schematic diagram showing the positional relationship between the terminal crimping machine and the wire harness straightening gripper of the present invention;

[0066] Figure 17 This is a schematic diagram of the structure of the second sleeve mechanism of the present invention;

[0067] Figure 18 This is a schematic diagram of the structure of the second tube feeder assembly of the present invention;

[0068] Figure 19 This is a schematic diagram of the installation structure of the driven wheel for feeding the pipe in this invention;

[0069] Figure 20 This is a schematic diagram showing the connection relationship between the pipe cutting assembly and the pipe cutting drive assembly of the present invention;

[0070] Figure 21 This is a schematic diagram of the heat shrink mechanism of the present invention;

[0071] Figure 22 This is a schematic diagram of the heat shrink mechanism of the present invention (with the cover and blower removed).

[0072] Figure 23 This is a schematic diagram of the wiring fixture of the present invention;

[0073] Figure 24 This is a schematic diagram of the wiring fixture of the present invention (with the tray lifting assembly and the gripper opening assembly removed).

[0074] Figure 25 This is a schematic diagram of the lead clamping assembly of the present invention;

[0075] Figure 26 This is a schematic diagram showing the connection relationship between the gripper assembly and the gripper opening assembly of the present invention;

[0076] Figure 27 This is a schematic diagram of the pallet lifting assembly of the present invention;

[0077] Figure 28 This is a schematic diagram of the feeding mechanism of the present invention;

[0078] Figure 29This is a schematic diagram showing the positional relationship between the sensing bracket, the blocking component, and the tray lifting component of the present invention.

[0079] In the picture:

[0080] A. Cable management station, B. Cable cutting station, C. Wiring station, D. Protector riveting station, E. Tubing heat shrinking station, F. Inspection station;

[0081] 1. Wire cutting mechanism; 11. Wire cutting machine frame; 12. Wire pressing assembly; 121. Wire pressing block; 122. Pressing plate; 123. First guide rod bracket; 124. First guide rod; 125. First spring; 13. Wire cutting blade assembly; 131. Fixed wire cutting blade; 132. Moving wire cutting blade; 133. First guide block; 134. Fixed wire cutting blade holder; 135. Moving wire cutting blade holder; 136. First screw; 137. Blade holder fixing plate; 138. Second screw; 139. First compression spring; 14. Wire cutting cylinder; 15. Wire guide plate;

[0082] 2. Wire feeding mechanism; 21. Wire feeding wheel; 22. First straightening wheel group; 23. Wire feeding wheel group; 24. Wire harness swing assembly; 241. Torsion spring; 242. Swing head fixing seat; 243. Swing head; 244. Guide sleeve; 25. Second gap adjusting component; 251. Adjusting screw; 252. Elbow clamp; 253. Second guide rod; 254. Second spring; 26. Wire feeding wheel drive assembly; 261. Wire feeding motor; 262. First gearbox; 263. First pulley group; 264. First synchronous gear; 27. Third gap adjusting component; 271. First handle; 272. First tension spring; 273. Tightening bolt; 274. Limiting plate; 28. Belt tension adjustment mechanism; 281. Tensioning slider; 282. Tensioning adjusting block; 29. ​​Y-axis drive mechanism;

[0083] 3. Stripping mechanism; 31. First wire clamping assembly; 311. First translation plate; 312. First translation drive assembly; 313. Wire clamping jaw; 3131. Jaw block; 3132. Jaw cylinder; 3133. Connecting rod; 3134. First pin; 3135. Drive block; 3136. Jaw seat; 32. Wire cutting assembly; 321. Upper cutter; 322. Lower cutter; 323. Upper cutter fixing seat; 324. Upper sliding plate; 325. Lower cutter fixing seat; 326. Lower sliding plate; 327. Wire cutting motor; 328. Cutter transmission assembly;

[0084] 4. First sleeve mechanism; 41. First pipe feeding assembly; 411. Pipe feeding guide wheel; 412. First pipe feeding wheel group; 413. Pipe feeding support; 414. Second gearbox; 415. Third pulley group; 416. Feeding motor; 417. Second handle; 418. Second tension spring; 419. Adjusting block; 42. Pipe cutting assembly; 421. Pipe cutting knife; 422. First pneumatic gripper; 423. Limiting block; 43. First sleeve gripper assembly; 44. Second sleeve gripper assembly; 45. Second translation plate; 46. Second translation drive assembly;

[0085] 5. Riveting mechanism; 51. Terminal machine; 52. Wire harness straightening gripper; 53. Second wire clamping assembly; 54. X-axis linear module.

[0086] 6. Second sleeve mechanism; 61. Pipe feeding assembly; 611. Second straightening wheel group; 612. Second pipe feeding wheel group; 6121. Pipe feeding drive wheel; 6122. Pipe feeding driven wheel; 6123. Driven wheel shaft; 6124. Quick release pull tab; 6125. Cam; 6126. Quick release screw; 6127. Third spring; 6128. Driven wheel fixing block; 613. Pipe feeding drive assembly; 62. Third sleeve clamp; 63. Pipe cutting assembly; 64. Lead wire clamp; 65. Third translation drive assembly; 66. First support plate; 67. Pipe cutting drive assembly; 671. Pipe cutting motor; 672. Eccentric wheel; 673. Cutting blade plate; 674. Second guide block;

[0087] 7. Heat shrinking mechanism; 71. Upper heating air blower; 72. Lower heating air blower; 73. Upper air duct; 74. Lower air duct; 75. Cover; 76. Blower.

[0088] 8. Wiring fixture, 81. Positioning stop, 811. Positioning groove, 812. First cylinder, 82. Lead wire clamping assembly, 821. Clamping block, 822. Fourth spring, 823. Second pin, 83. Stator support assembly, 84. Claw assembly, 85. Lead wire gathering assembly, 851. Gathering component, 852. Gathering component fixing block, 86. Fixture base plate, 87. Pallet lifting assembly, 871. Lifting cylinder, 872. Lifting plate, 873. Lifting block, 874. Positioning pin, 875. Cylinder fixing plate, 876. Guide post, 877. Linear bearing, 88. Fixture upright plate, 89. Claw opening assembly, 891. Claw pull rod, 892. Claw pull buckle, 8921. Limiting groove, 893. Claw opening cylinder, 894. Fifth spring, 895. Limiting rod;

[0089] 9. Conveyor line; 91. Induction bracket; 92. Blocking assembly;

[0090] 10. Feeding mechanism; 101. Feeding bracket; 102. Quick lock head for bare rod. Detailed Implementation

[0091] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0092] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0093] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0094] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0095] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0096] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0097] like Figure 1-27 As shown, a stator lead wire connection production line includes a wire handling station A, a wire cutting station B, a wiring station C, a protector riveting station D, a sleeve heat shrinking station E, and an inspection station F. The specific process for stator wiring is as follows:

[0098] (1) At the cable management station A, the stator is correctly placed on the wiring fixture 8 by hand and the leads are arranged and put back in place;

[0099] (2) At the wire cutting station B, the lead wire is automatically cut;

[0100] (3) At wiring station C, multiple wiring mechanisms simultaneously connect relevant leads and perform terminal riveting;

[0101] (4) Rivet the thermal protector at protector riveting station D;

[0102] (5) At the heat shrinking station E, the connected leads are sleeved and heat-shrinked;

[0103] (6) At inspection station F, the product is manually inspected to determine whether it is qualified.

[0104] Among them, wire cutting station B is equipped with wire cutting mechanism 1, and wiring station C is equipped with 3 sets of wiring mechanisms, which are used to wire different leads respectively. Specifically, as follows: Figure 4As shown, the wiring mechanism includes a wire feeding mechanism 2, a stripping mechanism 3, a first sleeve mechanism 4, and a riveting mechanism 5. The wire feeding mechanism 2 moves along the Y-axis under the drive of the Y-axis drive mechanism 29. Specifically, the Y-axis drive mechanism includes two linear guide rail pairs mounted on the wiring frame and a Y-axis cylinder. The wire feeding mechanism 2 is mounted on a slider on the linear guide rail pairs via a wire feeding support. The piston rod end of the Y-axis cylinder is connected to the wire feeding support. The Y-axis cylinder can push the wire feeding support and the wire feeding mechanism 2 on it to move in the Y-axis direction, thereby facilitating alignment with the stripping mechanism 3 for stripping. After stripping, it is easy to align with the first sleeve mechanism 4 for further processing. The wire feeding mechanism 2 transports the wire harness to the stripping mechanism 3 for stripping and cutting, and then through the first sleeve mechanism 4 for sleeve installation, and then to the wiring fixture 8 for external connection of the lead wire. Finally, the terminal is riveted by the riveting mechanism 5. The protector riveting station D is equipped with the riveting mechanism 5 for riveting the protector. The sleeve heat shrinking station E is equipped with the second sleeve mechanism 6 and the heat shrinking mechanism 7 to sleeve and heat shrink the connected lead wires. In addition, each station is connected by a conveyor line 9, and a tray lifting assembly 87 is fixed on the conveyor line 9. The fixture tray is placed on the stator and flows between each station through the conveyor line 9.

[0105] like Figure 2 and 3As shown, the wire cutting mechanism 1 includes a wire cutting frame 11, a wire pressing assembly 12, a wire cutting blade assembly 13, a moving blade seat guide, and a first gap adjusting component. The wire pressing assembly 12 includes a wire pressing block 121 and a wire pressing guide assembly. The wire pressing guide assembly is mounted on the wire pressing block 121 via a pressure plate 122. Specifically, the wire pressing guide assembly includes a first guide rod 124 mounted on a first guide rod bracket 123, and a first spring 125 is sleeved on the first guide rod 124. The first guide rod bracket 123 is fixed to the wire cutting moving blade seat 135. The wire cutting blade assembly 13 includes a fixed wire cutting blade 131 and a moving wire cutting blade 132. The fixed wire cutting blade 131 has a U-shaped groove on its side, and the moving wire cutting blade 132 has a U-shaped structure, that is, both sides of the moving wire cutting blade 132 have cutting portions that can be inserted into the U-shaped grooves on the fixed wire cutting blade 131. The cutting portions have relatively sharp blades. After the moving wire cutter 132 is pressed down, it falls into the U-shaped groove, thereby cutting the lead wire. The moving wire cutter 132 is connected to the wire cutting cylinder 14 through the moving wire cutter seat 135. The fixed wire cutter 131 is installed on the fixed wire cutter seat 134. The fixed wire cutter seat 134 is a rectangular structure and is fixed to the wire cutting base plate by bolts. The wire cutting base plate is fixed to the wire cutting machine frame 11. When the wire cutting cylinder 14 drives the moving wire cutter seat 135 to descend, the first guide rod bracket 123 also descends, thereby compressing the first spring 125. Under the action of the first spring 125, the pressure plate 122 drives the pressure block 121 to press the lead wire. The moving wire cutter 132 also descends under the drive of the wire cutting cylinder 14 to cut the lead wire. The pressure block 121 and the moving wire cutter 132 are both driven by the same wire cutting cylinder 14, which can save the cost of one cylinder.

[0106] To constrain the movement trajectory of the wire-cutting blade holder 135 during its lifting and lowering process, guide members are provided on both sides of the wire-cutting blade holder 135. Specifically, these include first guide blocks 133 located on both sides of the wire-cutting blade holder 135. The first guide blocks 133 are mounted on the blade holder fixing plate 137, and a trapezoidal guide groove is formed on the side closest to the wire-cutting blade holder 135. The shapes of the two ends of the wire-cutting blade holder 135 match the shape of the guide groove, and the two ends of the wire-cutting blade holder 135 are located within the guide groove. A first gap adjusting member is located on the other side of the first guide block 133. The first gap adjusting member includes a first screw... The first screw 136 is fitted with a first compression spring 139, and the other end of the first compression spring 139 abuts in the countersunk hole on the first guide block 133. The first screw 136 and the second screw 138 are both mounted on a screw mounting plate, and the second screw 138 is also connected to the first guide block 133. The screw mounting plate is fixed on the tool holder fixing plate 137. By rotating the second screw 138, the first guide block 133 can be pulled to both sides, while the first compression spring 139 can push the first guide block 133 inward, thereby adjusting the gap between the two first guide blocks 133.

[0107] To prevent the lead wire from sagging, a lead wire guide plate 15 is also installed on the wire cutting fixed blade holder 134. The lead wire guide plate 15 includes a fixing part and a guiding part. The fixing part surrounds the outer periphery of the wire cutting fixed blade 131 and is fixed to the wire cutting fixed blade holder 134 by bolts. The guiding part is an inclined plate and the end of the guiding part near the fixing part is higher. The guiding part can support the lead wire, thereby preventing the lead wire from sagging.

[0108] In addition, in order to collect the cut-off wire ends, a wire end collection device is provided on the wire cutting frame 11 and connected to the inside of the wire cutting frame 11, into which the cut-off wire ends fall.

[0109] like Figure 5-8As shown, the wire feeding mechanism 2 includes an infeed wheel 21, a first straightening wheel group 22, a wire feeding wheel group 23, and a wire harness swing assembly 24. The infeed wheel 21 is mounted on one side of the lower mounting plate. The wire harness is led out from the wire release reel and passes through the infeed wheel 21. Then, the wire harness is straightened by the first straightening wheel group 22, and then fed forward by the wire feeding wheel group 23. The wire harness swing assembly 24 then passes through the wire harness swing assembly 24. Specifically, the wire harness swing assembly 24 includes a swing head 243 mounted on a swing head fixing seat 242 by a torsion spring 241. A guide sleeve 244 is installed inside the swing head 243, which can adapt to small fluctuations in working conditions and can also adapt to the subsequent stripping process. The bending radius of the wire end provided by the wire cutting assembly 32 ensures a smooth cut and no bending of the wire end. The first straightening wheel assembly 22 includes an upper row of straightening wheels mounted on an upper mounting plate and a lower row of straightening wheels mounted on a lower mounting plate. A second gap adjustment component 25 is provided on the upper mounting plate to adjust the gap between the upper and lower straightening wheels. The second gap adjustment component 25 includes an adjusting screw 251, an elbow clamp 252, and a second guide rod 253. The adjusting screw 251 is a double-threaded screw, with one end connected to the upper mounting plate and the other end connected to the elbow clamp 252. The second guide rod 253 passes through the top of the upper mounting plate and guides the wire end. A second spring 254 is fitted onto the rod 253. The gap between the upper and lower rows of straightening rollers can be adjusted by rotating the adjusting screw 251. When threading new wire, the two rows of straightening rollers can be opened by the elbow clamp 252 to facilitate threading. After the gap is adjusted, it can be locked by the elbow clamp 252 to prevent the adjusting screw 251 from loosening and causing a change in the gap. The wire feeding roller assembly 23 is driven by the wire feeding roller drive assembly 26 and the gap between the upper and lower rows of wire feeding rollers is adjusted by the third gap adjusting component 27. Specifically, the wire feeding roller drive assembly 26 includes a wire feeding motor 261, a first gearbox 262, and a first pulley assembly 263. The first pulley assembly 263 has 5 through-holes. The pulleys connected by the belt are the first pulley, the second pulley, the third pulley, the fourth pulley, and the fifth pulley. The output shaft of the wire feeding motor 261 is connected to the first pulley. The second and third pulleys are connected to the lower row of wire feeding wheels through the first rotating shaft, thereby driving the two lower row of wire feeding wheels to rotate. The fourth and fifth pulleys are connected to the driving gear in the first gearbox 262 through the second rotating shaft, and the driven gear in the first gearbox 262 is connected to the upper row of wire feeding wheels through the third rotating shaft, thereby driving the two upper row of wire feeding wheels to rotate. The third rotating shaft passes through the waist-shaped hole on the wire feeding support to facilitate subsequent lifting.The third gap adjusting member 27 includes a first handle 271, a first tension spring 272, and a first clamping member. The first handle 271 is mounted on the top of one of the first gearboxes 262. One end of the first tension spring 272 is mounted on the bottom of the other first gearbox 262, and the other end is hooked onto a tension spring bracket. Furthermore, the two first gearboxes 262 are connected by two meshing first synchronizing gears 264, thereby enabling the two first gearboxes 262 to operate synchronously. For example, by pulling one of the first gearboxes 262 using the first handle 271. As the gearbox 262 is raised, the other gearbox 262 also rises synchronously, ensuring that the strokes of the two feed rollers are consistent. The raising of the upper feed roller increases the gap between the upper and lower feed rollers, facilitating the passage of the wire harness. Furthermore, during wire feeding, the first tension spring 272 can pull the first gearbox 262 and the upper feed roller downwards, providing a continuous downward preload. This ensures that the upper feed roller maintains a downward contact trend, guaranteeing uniform and stable contact pressure between the wire harness and the rollers during feeding, preventing slippage and jumping, and improving feeding accuracy.

[0110] In addition, to prevent the gap between the upper and lower rows of wire feed rollers from shifting under vibration conditions, a first clamping member is provided. Specifically, the first clamping member includes a clamping bolt 273 and a limiting plate 274 installed on one side of the first gearbox 262. Rotating the clamping bolt 273 clamps the limiting plate 274, thereby clamping the first gearbox 262 and preventing it from moving under vibration conditions.

[0111] To adjust the belt tension, a belt tension adjustment mechanism 28 is provided. The belt tension adjustment mechanism 28 includes a tension slider 281 and a tension adjustment block 282. The tension slider 281 is installed on the wire feeding support and is located between the second pulley and the third pulley. The tension slider 281 has an oblong hole. The tension adjustment block 282 is installed on the top of the tension slider 281 by bolts. The oblong hole can drive the tension slider 281 to move slightly in a preset direction, so as to realize continuous fine adjustment of the tension and avoid the belt from slipping due to being too loose or aggravating wear due to being too tight.

[0112] To limit the wire feeding path, a guide sleeve 244 is also provided between the first straightening wheel group 22 and the wire feeding wheel group 23. A guide block with a guide hole is provided between the left and right rows of wire feeding wheels to ensure the accuracy of the wire feeding path and avoid deviation. To detect whether there is a shortage of material, a shortage detection device is provided between the wire feeding wheel 21 and the first straightening wheel group 22. A through-beam / reflective photoelectric sensor or a fiber optic sensor can be used to detect whether there is a shortage of material.

[0113] like Figure 9As shown, the wire stripping mechanism 3 includes a first wire clamping assembly 31 and a wire cutting assembly 32. The first wire clamping assembly 31 is mounted on the wire feeding support, and therefore can also move along the Y-axis under the drive of the Y-axis drive mechanism 29. The first wire clamping assembly 31 includes wire clamping jaws 313 mounted on the first translation plate 311, such as... Figure 10 As shown, the wire clamping jaws 313 include jaw blocks 3131 and jaw cylinders 3132. Two jaw blocks 3131 are mounted on a drive block 3135 via connecting rods 3133 and first pins 3134. Specifically, one end of the connecting rod is connected to the jaw blocks 3131 via the first pin 3134, and the other end is connected to the drive block 3135 via the first pin 3134. Furthermore, the jaw blocks 3131 are also connected to the jaw seat 3136 via cylindrical pins. The drive block 31... 35 is connected to the gripper cylinder 3132, and the gripper cylinder 3132 is fixed on the gripper seat 3136. The drive block 3135 is installed inside the gripper seat 3136. When the piston rod of the gripper cylinder 3132 extends, it pushes the drive block 3135 to extend linearly along the inside of the gripper seat 3136. The drive block 3135 drives the connecting rods 3133 on both sides to rotate through the first pin 3134, converting the linear thrust into the inward retraction torque of the gripper block 3131. The two gripper blocks 3131... 131 synchronously closes to complete the clamping action; the piston rod of the gripper cylinder 3132 retracts, causing the drive block 3135 to retract, and the connecting rod 3133 is pulled in the opposite direction through the first pin 3134, causing the two gripper blocks 3131 to open outward synchronously, releasing the clamped wire harness and completing the opening action; the first translation plate 311 is driven to translate by the first translation drive assembly 312, which includes a first translation motor and a drive gear. The drive gear is mounted on the motor shaft of the first translation motor. An elongated hole is provided on the first translation plate 311, and teeth are provided on the inner wall of one side of the elongated hole. The drive gear meshes with the teeth on the inner wall of the elongated hole, and the motor shaft of the first translation motor drives the drive gear to rotate, thereby driving the first translation plate 311 and the clamping gripper 313 on it to move horizontally. Here, the first translation plate 311 is slidably installed in the groove of the first cover plate, and the first translation motor is installed on the first cover plate.

[0114] like Figure 11As shown, the cutting assembly 32 includes an upper cutter 321 and a lower cutter 322, with two sets of each. The upper cutter 321 is mounted on the upper sliding plate 324 via an upper cutter fixing seat 323, and the lower cutter 322 is mounted on the lower sliding plate 326 via a lower cutter fixing seat 325. The lower cutter fixing seat 325 is connected to a rubber collection box, allowing the peeled rubber to enter the rubber collection box. Both the upper sliding plate 324 and the lower sliding plate 326 are connected to the cutting motor 327 via a cutter transmission assembly 328. Specifically, the cutter transmission assembly 328... 28 includes a second pulley set and a cutter drive gear. The motor shaft of the tangent motor 327 is connected to the driving pulley of the second pulley set, and the driven pulley is connected to the drive gear through a rotating shaft. Both the upper sliding plate 324 and the lower sliding plate 326 have elongated holes. One of the elongated holes has teeth on the left inner wall, and the other elongated hole has teeth on the right inner wall. The drive gear meshes with the teeth on both sides, thereby driving the upper sliding plate 324 and the lower sliding plate 326 to move towards each other or away from each other, so that the upper cutter 321 and the lower cutter 322 are engaged or disengaged.

[0115] When stripping the wire harness, the outer insulation layer of the wire harness is first circumferentially cut by the upper cutter 321 and the lower cutter 322. The first translation plate 311 is driven by the first translation motor, which in turn drives the wire clamping claw 313 on it to clamp the wire harness and move it to the right to strip the wire harness. After the wire harness is delivered to the required length, it is cut by a set of upper cutters 321 and lower cutters 322 near the wire feeding mechanism 2 and held by the wire clamping claw 313 for subsequent sleeve installation. During sleeve installation, the Y-axis drive mechanism 29 moves it to be on the same straight line as the first sleeve mechanism 4.

[0116] like Figure 12 As shown, the first sleeve mechanism 4 includes a first sleeve feeding assembly 41, a sleeve cutting assembly 42, and a second translation plate 45. The second translation plate 45 is equipped with a first sleeve clamping claw assembly 43 and a second sleeve clamping claw assembly 44 and moves under the drive of the second translation drive assembly 46. The first sleeve feeding assembly 41 feeds the insulating sleeve to the required length and then cuts it through the sleeve cutting assembly 42. The first sleeve clamping claw assembly 43 and the second sleeve clamping claw assembly 44 clamp the insulating sleeve and insert it into the stripped wire harness. The second sleeve clamping claw assembly 44 clamps the front end of the insulating sleeve and inserts it 4mm~6mm in, then releases it, and the first sleeve clamping claw assembly 43 holds it to continue inserting it.

[0117] Among them, such as Figure 13As shown, the first pipe feeding assembly 41 includes a pipe feeding guide wheel 411, a first pipe feeding wheel group 412, a second gearbox 414, and a fourth clearance adjusting component. The pipe feeding guide wheel 411 is mounted on one side of the pipe feeding support 413 via a guide wheel bracket. The first pipe feeding wheel group 412 includes two pipe feeding wheels arranged side by side, and the two pipe feeding wheels are respectively connected to the output shafts of the two second gearboxes 414. The input shaft of the second gearbox 414 is connected to the feeding motor 416 via a third pulley group 415. Specifically, the second gearbox 414 includes a second gearbox I and a second gearbox II. The third pulley group 415 includes a sixth pulley, a seventh pulley, and an eighth pulley connected by belts. The output shaft of the feeding motor 416 is connected to the sixth pulley. The seventh pulley is connected to the output shaft of the second gearbox I, and the output shaft of the second gearbox I passes through the oblong holes in the bottom plate and the middle plate. The eighth pulley is connected to the input shaft of the second gearbox II, and the input shafts of the second gearbox II are connected to the bottom plate and the middle plate via deep groove ball bearings. In addition, a tensioning wheel is provided to adjust the belt tension. The tensioning wheel is mounted on the tensioning wheel fixing plate, and a third tension spring is also mounted on the tensioning wheel fixing plate. The other end of the third tension spring is fixed to the feed pipe support 413. The tensioning wheel fixing plate is connected to the input shaft of the second gearbox I. The input shaft of the second gearbox I is connected to the base plate and the middle plate through deep groove ball bearings. In order to maintain the synchronization of the two second gearboxes 414, the two second gearboxes 414 are also connected through two meshing second synchronous gears. The fourth gap adjustment component includes a second handle 417, a second tension spring 418, and a tension adjustment component. The second handle 417 is mounted on one side of the second gearbox 414. The two ends of the second tension spring 418 are respectively connected to the two second gearboxes 414. The tension adjustment component includes an adjustment block 419 mounted on the second gearbox 414 and an adjustment screw (not shown in the figure) mounted on the vertical plate. The function of the fourth gap adjustment component is the same as the working principle of the third gap adjustment component 27, and will not be described again here.

[0118] In addition, in order to constrain the path of the insulating sleeve and ensure the accuracy of the insulating sleeve delivery, two ceramic eyes installed on the ceramic eye seat are provided between the tube delivery guide wheel 411 and the first tube delivery wheel group 412, and a tube delivery sleeve is also provided between the first tube delivery wheel group 412 and the tube cutting assembly 42.

[0119] In addition, such as Figure 14As shown, the pipe cutting assembly 42 includes a pipe cutting blade 421 and a first pneumatic gripper 422. The pipe cutting blade 421 is mounted on the two jaw blocks of the first pneumatic gripper 422 via a pipe cutting blade holder. A limit block 423 is provided between the two jaw blocks and is fixed to one side of the first pipe feeding assembly 41. The first set of pipe gripper assembly 43 includes a first set of pipe grippers mounted on a second pneumatic gripper. The teeth on the two first sets of pipe grippers interlock to improve the gripping firmness. The structure of the second set of pipe gripper assembly 44 is the same as that of the wire clamping gripper 313. The structure and principle of the second translation drive assembly 46 are the same as those of the first translation drive assembly 312, and will not be described again here.

[0120] like Figure 15 and 16 As shown, after the sleeve is finished, the second wire clamping assembly 53 clamps the wire harness behind the sleeve and moves it to the wiring fixture 8 at this station under the drive of the X-axis linear module 54. The wiring and terminals are then riveted by the riveting mechanism 5. Specifically, the X-axis linear module 54 is mounted on the wiring machine frame via a column. The second wire clamping assembly 53 includes a second wire clamping cylinder (using a sliding table cylinder) and a pneumatic wire clamping jaw fixed to the second wire clamping cylinder by a wire clamping jaw fixing block. The riveting mechanism 5 includes a terminal machine 51 and a wire harness straightening jaw 52. The wire harness straightening jaw 52 is mounted on one side of the terminal machine 51. The side is used to clamp the wire harness behind the sleeve for terminal crimping. One end of the wire harness behind the sleeve is clamped by the pneumatic wire clamping jaw (on top). The lead wire clamping assembly 82 on the wiring fixture 8 clamps one end of the wire harness on the stator coil (on bottom). The wire harness straightening jaw 52 clamps the other end of the wire harness behind the sleeve and the wire harness on the stator coil at the same time to connect the wires. Then the terminal crimping is performed by the terminal crimping machine 51. After the three wiring mechanisms complete the external lead wire and terminal crimping, the protector is crimped by the crimping mechanism 5 of the protector crimping station D. After the crimping is completed, it is sent to the sleeve heat shrinking station E.

[0121] like Figure 17As shown, the second tubing mechanism 6 is mounted on the heat shrink tubing frame and includes a second tubing feeding assembly 61, a third tubing clamp 62, a tubing cutting assembly 63, and a lead wire clamp 64. The second tubing feeding assembly 61 includes a second straightening roller group 611 and a second tubing feeding roller group 612. The second straightening roller group 611 adjusts the gap between the upper and lower straightening rollers via a second gap adjusting member 25. The structure of the second gap adjusting member 25 has been described previously and will not be repeated here. The heat shrink tubing is then inserted into the straightening roller group. The straight roller assembly 611 is straightened and conveyed forward by the second tube feeding assembly 612. When the conveyed length reaches the required length of a single section of heat shrink tubing, the tube feeding action stops. The tube cutting drive assembly 67 drives the tube cutting assembly 63 to cut the heat shrink tubing. The third tube clamp 62 clamps the heat shrink tubing and moves forward under the drive of the third translation drive assembly 65 to deliver the heat shrink tubing to the lead wire clamp 64. The lead wire clamp 64 holds the stator lead wire and then performs the tube sleeve action.

[0122] In addition, a tube shortage protection component and a second guide block are provided between the second straightening wheel group 611 and the second tube feeding wheel group 612. The tube shortage protection component is installed on the pad block through a protective plate mounting seat, and a guide hole is opened on the protective plate mounting seat. The second guide block is installed on the pad block and has a guide hole. A ceramic eye is installed in the guide hole to facilitate the passage of heat shrink tubing. The tube shortage protection component can be detected by a through-beam / reflective photoelectric sensor or a fiber optic sensor to detect whether there is a shortage of material. A guide sleeve is also provided between the second tube feeding wheel group 612 and the tube cutting assembly 63. The guide sleeve is used to guide the heat shrink tubing. In this embodiment, the two guide holes with ceramic eyes and the guide sleeve form a three-segment linear limit, which constrains the trajectory of the heat shrink tubing throughout the process, avoids the heat shrink tubing from deviating or getting stuck, and works with the second tube feeding wheel group 612 to ensure the coaxiality and dimensional accuracy of the feeding.

[0123] like Figure 18 and 19As shown, the second tube feeding wheel assembly 612 includes a tube feeding drive wheel 6121 and a tube feeding driven wheel 6122. The tube feeding drive wheel 6121 is mounted on the first support plate 66 and is driven to rotate by the tube feeding drive assembly 613. Specifically, the tube feeding drive assembly 613 includes a tube feeding motor and a fourth pulley assembly. The tube feeding motor is connected to the drive pulley of the fourth pulley assembly, and the driven pulley is connected to the tube feeding drive wheel 6121. Thus, the tube feeding motor drives the tube feeding drive wheel 6121 to rotate through the fourth pulley assembly. The tube feeding driven wheel 6122 is mounted on a T-shaped driven wheel fixing block 6128 via a driven wheel shaft 6123. 23. A cam 6125 is installed via quick-release pull tabs 6124. Specifically, the first end of the two quick-release pull tabs 6124 is connected to the driven wheel shaft 6123, and the other end of the two quick-release pull tabs 6124 is equipped with a cam 6125 via a cylindrical pin. The end of the cam 6125 connected to the cylindrical pin has a large radius section, and the overall structure of the cam 6125 has a certain curvature. A quick-release screw 6126 is also installed on the driven wheel shaft 6123, and a third spring 6127 is sleeved on the quick-release screw 6126. Under normal pipe feeding conditions, the cam 6125 is in the initial position, and its small radius section is stuck on the edge of the driven wheel fixing block 6128. At this time, The third spring 6127, fitted onto the quick-release screw 6126, is in a preset compressed state. When a new tube needs to be inserted, the small-radius section of the cam 6125 is manually turned, causing the cam 6125 to rotate around the cylindrical pin between the two quick-release pull tabs 6124. The large-radius section of the cam 6125 gradually presses against the driven wheel fixing block 6128, causing the driven wheel fixing block 6128 to swing around the hinge fulcrum. This overcomes the elastic force of the third spring 6127 and lifts the tube-feeding driven wheel 6122 away from the tube-feeding driving wheel 6121. The two wheels instantly open a sufficiently large gap for tube insertion. After the operator completes the tube insertion, the cam 6125 is turned in the opposite direction to return to its original position. In position, the elastic force of the third spring 6127 automatically pushes the driven wheel 6122 to press against the driving wheel 6121, immediately restoring the tube feeding state. The third spring 6127 provides a stable elastic clamping force to the driven wheel 6122, ensuring that the two wheel surfaces are completely parallel and in contact, forming a uniform clamping gap that is suitable for the diameter of the heat shrink tubing. This avoids slippage, deviation, and tube wall flattening and deformation during tube feeding, ensuring the accuracy and stability of heat shrink tubing delivery. In addition, by rotating the quick-release screw 6126, the pre-compression amount of the third spring 6127 can be adjusted, thereby changing the clamping force of the two wheels to adapt to different specifications of heat shrink tubing.

[0124] The third sleeve clamp 62 is driven to translate by the third translation drive assembly 65. The third sleeve clamp 62 includes a sleeve pneumatic gripper and two sleeve clamping blocks mounted on the sleeve pneumatic gripper. The structure of the third translation drive assembly 65 is the same as that of the first translation drive assembly 312, and will not be described again here.

[0125] like Figure 20As shown, the tube cutting assembly 63 is located below the third set of tube clamps 62 and is driven by the tube cutting drive assembly 67 to cut the heat shrink tubing. The tube cutting drive assembly 67 includes a tube cutting motor 671 and an eccentric wheel 672. The eccentric wheel 672 is mounted on the motor shaft of the tube cutting motor 671. The eccentric wheel 672 is fitted with a bearing, which is located inside a rectangular opening. The tube cutting motor 671 drives the eccentric wheel 672 to rotate, thereby causing the cutter plate 673 to rise. The cutter on the plate then completes the cutting action. The tube cutting motor 671 rotates once to complete one tube cutting action. In addition, for easy guidance, the two ends of the cutter plate 673 are formed into trapezoidal or arc shapes. There are second guide blocks 674 mounted on the cutter fixing plate on both sides of the cutter plate 673. The second guide blocks 674 have guide grooves that match the shape of the two ends of the cutter plate 673. The cutter fixing plate is connected to the first support plate 66.

[0126] The lead wire clamp 64 is mounted on one side of the tube cutting assembly 63 and is used to clamp the stator lead wire. The structure of the lead wire clamp 64 is the same as that of the aforementioned clamping clamp 313, and will not be described again here.

[0127] In one embodiment, such as Figure 21 and 22 As shown, the heat shrinking mechanism 7 is installed on the heat shrink tubing frame and includes an upper heating air pipe 71 and a lower heating air pipe 72. The upper heating air pipe 71 and the lower heating air pipe 72 are respectively connected to the blower 76 through the upper air pipe 73 and the lower air pipe 74. The upper heating air pipe 71 and the lower heating air pipe 72 are provided with a cover 75 supported by a hot air bracket. The air coming out of the blower 76 enters the stainless steel pipe through the upper air pipe 73 and the lower air pipe 74. The heating of the heating pipe generates hot air, thereby shrinking the heat shrink tubing.

[0128] In addition, a feeding mechanism 10 is provided on one side of both the first sleeve mechanism 4 and the second sleeve mechanism 6, such as... Figure 28 As shown, the feeding mechanism 10 includes a feeding bracket 101 and a quick-lock head 102. The feeding bracket 101 is fixed on the corresponding frame, and the quick-lock head 102 is installed on the top of the feeding bracket 101. The insulating sleeve or heat shrink tubing is placed on the feeding bracket and locked by the quick-lock head 102, which can prevent slippage during the tube feeding process.

[0129] like Figure 23-27As shown, the tooling pallet includes a positioning block 81, a lead wire clamping assembly 82, a stator support assembly 83, a gripper assembly 84, and a lead wire gathering assembly 85, which are sequentially installed on the tooling base plate 86. The positioning block 81 has an L-shaped structure and four positioning slots 811. The positioning block 81 is driven to rise and fall by a first cylinder 812 to ensure that the outer wire of the stator lead is at a suitable height. The first cylinder 812 is mounted on the tooling base plate 86 via a cylinder mounting plate. The lead wire clamping assembly 82 is used to clamp the lead wire. Specifically, the lead wire clamping assembly 82 includes four sets of clamping block groups installed on the tooling upright plate 88. Each clamping block group includes two clamping blocks 821 arranged in a V-shape. The clamping blocks 821 are installed on the tooling via a rotating shaft or bolts. On the upright plate 88, a fourth spring 822 is installed between the two clamping blocks 821 with the larger opening, and both ends of the fourth spring 822 are installed in the countersunk holes of the clamping blocks 821. A second pin 823 is also provided between the two clamping blocks 821, located on the side with the smaller opening of the two clamping blocks 821. By pinching the end with the fourth spring 822, the two clamping blocks 821 can be separated. Without applying external force, the two clamping blocks 821 are closed under the action of the fourth spring 822. The stator support assembly 83 is used to place... The stator is positioned as follows: Specifically, the stator support assembly 83 includes a stator support block 831 and a coil pad block 832. The top of the stator support block 831 has a V-shaped groove for supporting the stator body, and the top of the coil pad block 832 has an arc-shaped groove for supporting the coil of the stator. The gripper assembly 84 is connected to and driven by the gripper opening assembly 89 to open or close the grippers. The gripper assembly 84 and the gripper opening assembly 89 are driven by the tray lifting assembly 87. Specifically, at the wire cutting station B and the tubing heat shrinking station E, the gripper assembly... Component 84 does not need to be opened. It is only necessary to lift the gripper assembly 84 to a suitable height by using the tray lifting assembly 87. However, at the wiring station C and the inspection station F, the gripper needs to be opened. In this embodiment, since the wiring station C has 3 sets of wiring mechanisms (including the riveting mechanism 5) and a separate riveting mechanism 5, the gripper assembly 84 can also be set to only 3 sets. When the 3 sets of wiring mechanisms are working, the corresponding gripper assembly 84 opens the wiring gripper in the corresponding gripper assembly 84 when it is lifted by the tray lifting assembly 87, and connects the wire at the corresponding position.The structure of the gripper assembly 84 is the same as that of the wire clamping gripper 313, and will not be described again here. The gripper opening assembly 89 includes a gripper pull rod 891, a gripper latch 892, and a gripper opening cylinder 893. The gripper pull rod 891 is fitted with a fifth spring 894. The piston rod end of the gripper opening cylinder 893 is connected to the first end of the gripper latch 892. The first end of the gripper pull rod 891 has a T-shaped structure, and the second end is connected to the drive block 3135 through a spacer. The second end of the gripper latch 892 forms a limit slot 8921, and the first end of the gripper pull rod 891 is installed in the limit slot. When the piston rod of the gripper opening cylinder 893 extends, it pushes the gripper pull rod 891 and the drive block 3135 upward, thereby opening the two gripper blocks 3131. When the piston rod of the gripper opening cylinder 893 returns to its original position, the two gripper blocks 3131 return to their original position under the action of the fifth spring 894. Furthermore, to limit the vertical displacement of the gripper pull buckle 892, a waist-shaped hole is provided along the length of the gripper pull buckle 892, and a limiting rod 895 passes through the waist-shaped hole. Both ends of the limiting rod 895 are fixed to the cylinder fixing plate 875 by fixing seats.

[0130] The lead wire gathering assembly 85 includes a V-shaped gathering member 851. The two ends of the gathering member 851 are fixed to the gathering member fixing block 852. The gathering member fixing block 852 is installed on the tooling base plate 86. The gathering member 851 is used to gather multiple lead wires together to prevent them from being scattered and tangled.

[0131] In this embodiment, as Figure 27 and 29 As shown, the pallet lifting assembly 87 is installed on the support frame of the conveyor line 9. Specifically, it includes a lifting cylinder 871 and a lifting plate 872. The lifting cylinder 871 is installed on a cylinder fixing plate 875 and connected to the lifting plate 872 via a connector. A lifting block 873 and a positioning pin 874 are installed on the lifting plate 872. A positioning hole matching the position and shape of the positioning pin 874 is provided on the tooling base plate 86. In addition, a guide post 876 and a linear bearing 877 are also provided. The top end of the guide post 876 is fixed to the lifting plate 872. The linear bearing 877 is installed on the cylinder fixing plate 875, and the guide post 876 passes through and assembles with the linear bearing 877. During lifting, the piston rod of the lifting cylinder 871 extends, lifting the lifting plate 872 upwards, causing the positioning pin 874 to insert into the positioning hole, thereby lifting the tooling base plate 86. Furthermore, as... Figure 29 As shown, a sensor bracket 91 and a blocking component 92 are installed on the support frame of the conveyor line 9 corresponding to each workstation. The sensor bracket 91 is located on the left side of the pallet lifting component 87, and the blocking component 92 is located on the right side of the pallet lifting component 87. The sensor bracket 91 can sense the position of the wiring fixture 8, and the blocking component 92 adopts a blocking cylinder to block the fixture pallet.

[0132] The above are preferred embodiments of the present invention. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A stator lead wire production line, characterized in that, include: At the cable management station (A), the stator is correctly placed on the wiring fixture (8) and the leads are organized and put back in place. The wire cutting station (B) is equipped with a wire cutting mechanism (1) for automatically cutting the lead wire; The wiring station (C) is equipped with multiple wiring mechanisms, including a wire feeding mechanism (2), a stripping mechanism (3), a first sleeve mechanism (4), and a riveting mechanism (5). The wire feeding mechanism (2) moves along the Y-axis under the drive of the Y-axis drive mechanism (29). The wire feeding mechanism (2) delivers the wire harness to the stripping mechanism (3) for stripping and cutting, and then through the first sleeve mechanism (4) for sleeve, and delivers it to the wiring fixture (8) to connect the lead wire. Finally, the terminal is riveted by the riveting mechanism (5). The protector riveting station (D) is equipped with a riveting mechanism (5) for riveting the thermal protector; The heat shrinking station (E) is equipped with a second sleeve mechanism (6) and a heat shrinking mechanism (7) to sleeve and heat shrink the connected lead wires. Inspection station (F) is used to check whether the product is qualified. Each workstation is connected by a conveyor line (9) and a wiring fixture (8) is provided on the conveyor line (9). The wiring fixture (8) includes a fixture tray and a tray lifting assembly (87). A stator is placed on the fixture tray and moves between each workstation via the conveyor line (9).

2. The stator lead wire production line according to claim 1, characterized in that: The wire-cutting mechanism (1) includes: Wire cutting machine frame (11); The wire pressing assembly (12) includes a wire pressing block (121) and a wire pressing guide assembly. The wire pressing guide assembly is mounted on the wire pressing block (121) via a pressure plate (122). The wire pressing guide assembly includes a first guide rod (124) mounted on a first guide rod bracket (123) and a first spring (125) sleeved on the first guide rod (124). The first guide rod bracket (123) is fixed on the wire cutting knife holder (135). The wire cutting blade assembly (13) includes a fixed wire cutting blade (131) and a movable wire cutting blade (132). The movable wire cutting blade (132) is connected to the wire cutting cylinder (14) through a movable wire cutting blade holder (135). The first guide rod bracket (123) is fixed on the movable wire cutting blade holder (135). The moving blade holder guide includes a first guide block (133) disposed on both sides of the wire cutting moving blade holder (135). The first guide block (133) is mounted on the blade holder fixing plate (137) and a guide groove is provided on the side near the wire cutting moving blade holder (135). The shapes of the two ends of the wire cutting moving blade holder (135) match the shape of the guide groove and the two ends of the wire cutting moving blade holder (135) are located in the guide groove. The first gap adjusting component is disposed on the other side of the first guide block (133). The first gap adjusting component includes a first screw (136) and a second screw (138). A first compression spring (139) is sleeved on the first screw (136), and the other end of the first compression spring (139) abuts in the countersunk hole on the first guide block (133). The first screw (136) and the second screw (138) are both mounted on a screw mounting plate, and the second screw (138) is also connected to the first guide block (133). The screw mounting plate is fixed on the tool holder fixing plate (137).

3. The stator lead wire production line according to claim 1, characterized in that: The wire feeding mechanism (2) includes: The feed wheel (21) is mounted on one side of the lower mounting plate; The first straightening wheel assembly (22) includes an upper row of straightening wheels mounted on an upper mounting plate and a lower row of straightening wheels mounted on a lower mounting plate. The upper mounting plate is provided with a second gap adjusting component (25) to adjust the gap between the upper row of straightening wheels and the lower row of straightening wheels. The second gap adjusting component (25) includes an adjusting screw (251), an elbow clamp (252), and a second guide rod (253). The adjusting screw (251) is a screw with both positive and negative threads. One end of the adjusting screw (251) is connected to the upper mounting plate and the other end is connected to the elbow clamp (252). The second guide rod (253) passes through the top of the upper mounting plate and a second spring (254) is sleeved on the second guide rod (253). A wire feeding wheel assembly (23) is driven by a wire feeding wheel drive assembly (26) and the spacing between the upper and lower rows of wire feeding wheels is adjusted by a third gap adjuster (27). The wire feeding wheel drive assembly (26) includes a wire feeding motor (261), a first gearbox (262), and a first pulley assembly (263). The output shaft of the wire feeding motor (261) is connected to the first pulley assembly (263). The first pulley assembly (263) is connected to the lower row of wire feeding wheels via a first rotating shaft. The first pulley assembly (263) is connected to the first gearbox (262) via a second rotating shaft. 2) The first gearbox (262) is connected to the upper feed wheel via the third rotating shaft, and the two first gearboxes (262) are connected via two meshing first synchronous gears (264); the third gap adjusting member (27) includes a first handle (271), a first tension spring (272) and a first tightening member. The first handle (271) is installed on the top of one of the first gearboxes (262), one end of the first tension spring (272) is installed on the bottom of the other first gearbox (262) and the other end is hooked on the tension spring bracket. The first tightening member includes a tightening bolt (273) and a limiting plate (274) installed on one side of the first gearbox (262). The wire harness swing assembly (24) includes a swing head (243) mounted on a swing head fixing seat (242) by a torsion spring (241), and a guide sleeve (244) is installed inside the swing head (243).

4. The stator lead wire production line according to claim 1, characterized in that: The head-stripping mechanism (3) includes: The first wire clamping assembly (31) includes wire clamping jaws (313) mounted on a first translation plate (311), which is driven to translate by a first translation drive assembly (312); The wire cutting assembly (32) includes an upper cutter (321) and a lower cutter (322). The upper cutter (321) is mounted on an upper sliding plate (324) via an upper cutter fixing seat (323). The lower cutter (322) is mounted on a lower sliding plate (326) via a lower cutter fixing seat (325). The lower cutter fixing seat (325) is connected to a rubber collection box. Both the upper sliding plate (324) and the lower sliding plate (326) are connected to a wire cutting motor (327) via a cutter transmission assembly (328), thereby driving the upper sliding plate (324) and the lower sliding plate (326) to move towards each other or away from each other.

5. The stator lead wire production line according to claim 1, characterized in that: The first casing mechanism (4) includes: The first tube feeding assembly (41) includes a tube feeding guide wheel (411), a first tube feeding wheel group (412), and a fourth gap adjusting component. The tube feeding guide wheel (411) is installed on one side of the tube feeding support (413) through a guide wheel bracket. The first tube feeding wheel group (412) includes at least two tube feeding wheels arranged side by side, and each tube feeding wheel is connected to the output shaft of the second gearbox (414). The input shaft of the second gearbox (414) is connected to the feeding motor (416) through a third pulley group (415). The fourth gap adjusting component includes a second handle (417), a second tension spring (418), and a tension adjusting component. The second handle (417) is installed on one side of the second gearbox (414). The two ends of the second tension spring (418) are respectively connected to the two second gearboxes (414). The tension adjusting component includes an adjusting block (419) installed on the second gearbox (414) and an adjusting screw installed on the vertical plate. The pipe cutting assembly (42) includes a pipe cutting knife (421) and a first pneumatic gripper (422). The pipe cutting knife (421) is mounted on the two jaw blocks of the first pneumatic gripper (422) through a pipe cutting knife seat. A limit block (423) is provided between the two jaw blocks. The limit block (423) is fixed to one side of the first pipe feeding assembly (41). The second translation plate (45) is equipped with the first set of pipe clamping claw assembly (43) and the second set of pipe clamping claw assembly (44) and is translated under the drive of the second translation drive assembly (46). After the first tube feeding assembly (41) delivers the insulating sleeve to the required length, it is cut by the tube cutting assembly (42). The first sleeve clamping assembly (43) and the second sleeve clamping assembly (44) clamp the insulating sleeve and insert it into the stripped wire harness. The second sleeve clamping assembly (44) clamps the front end of the insulating sleeve and inserts it 4mm~6mm before releasing it. The first sleeve clamping assembly (43) then clamps it and continues to insert it.

6. The stator lead wire production line according to claim 1, characterized in that: The riveting mechanism (5) includes a terminal machine (51), a wire harness straightening gripper (52), and a second wire clamping assembly (53). The wire harness straightening gripper (52) is installed on one side of the terminal machine (51) to clamp the wire harness behind the sleeve for terminal crimping. The second wire clamping assembly (53) clamps the wire harness behind the sleeve and moves the wire harness to the terminal machine (51) under the drive of the X-axis linear module (54).

7. The stator lead wire production line according to claim 1, characterized in that: The second casing mechanism (6) includes: The second tube feeding assembly (61) includes a second straightening wheel group (611) and a second tube feeding wheel group (612). The second straightening wheel group (611) adjusts the gap between the upper and lower straightening wheels through a second gap adjusting member. The second tube feeding wheel group (612) includes a tube feeding drive wheel (6121) and a tube feeding driven wheel (6122). The tube feeding drive wheel (6121) is mounted on the first support plate (66) and rotated by the tube feeding drive assembly (613). The tube feeding driven wheel (6122) is mounted on the driven wheel fixing block (6128) through the driven wheel shaft (6123). A cam (6125) is mounted on the driven wheel shaft (6123) through a quick-release pull tab (6124). A quick-release screw (6126) is also mounted on the driven wheel shaft (6123), and a third spring (6127) is sleeved on the quick-release screw (6126). The third set of pipe clamps (62) is translated by the third translation drive assembly (65); The tube cutting assembly (63) is located below the third tube clamp (62) and is driven by the tube cutting drive assembly (67) to cut the heat shrink tubing; Lead clamps (64) are mounted on one side of the tube cutting assembly (63) and are used to clamp stator leads; The heat shrink tubing is straightened by the straightening wheel assembly (611) and then conveyed forward by the second tube feeding wheel assembly (612). When the conveyed length reaches the required length of a single section of heat shrink tubing, the tube feeding action stops. The tube cutting drive assembly (67) drives the tube cutting assembly (63) to cut the heat shrink tubing. The third tube clamp (62) clamps the heat shrink tubing and moves forward under the drive of the third translation drive assembly (65) to deliver the heat shrink tubing to the lead wire clamp (64). The lead wire clamp (64) holds the stator lead wire and then performs the tube sleeve action.

8. The stator lead wire production line according to claim 1, characterized in that: The heat shrinking mechanism (7) includes an upper heating air pipe (71) and a lower heating air pipe (72). The upper heating air pipe (71) and the lower heating air pipe (72) are respectively connected to a blower (76) through an upper air pipe (73) and a lower air pipe (74). The upper heating air pipe (71) and the lower heating air pipe (72) are provided with a cover (75) supported by a hot air bracket.

9. The stator lead wire production line according to claim 1, characterized in that: The tooling pallet includes a positioning block (81), a lead wire clamping assembly (82), a stator support assembly (83), and a gripper assembly (84) mounted on the tooling base plate (86). The positioning block (81) is driven to rise and fall by a first cylinder (812). The positioning block (81) has an L-shaped structure and a positioning groove (811). The lead wire clamping assembly (82) is used to clamp the lead wire and includes several clamping block groups mounted on the upright plate (88). Each clamping block group includes two clamping blocks (821). A fourth spring (822) is installed between the two clamping blocks (821), and the two ends of the fourth spring (822) are installed in the countersunk holes of the clamping blocks (821). A second pin (823) is also provided between the two clamping blocks (821). The stator support assembly (83) is used to place the stator and includes a stator support block (831) and a coil pad block (832). A V-shaped groove is formed on the top of the stator support block (831), and an arc-shaped groove is formed on the top of the coil pad block (832). The jaw assembly (84) and the jaw opening assembly (823) are connected. 9) Connected to and driven by the gripper opening assembly (89) to open or close the gripper, the gripper opening assembly (89) includes a gripper pull rod (891), a gripper latch (892), and a gripper opening cylinder (893). The gripper pull rod (891) is fitted with a fifth spring (894). The piston rod end of the gripper opening cylinder (893) is connected to the first end of the gripper latch (892). The first end of the gripper pull rod (891) has a T-shaped structure, and the second end is connected to a spacer. The gripper latch (892)... The second end forms a limiting slot (8921) and the first end of the gripper pull rod (891) is installed in the limiting slot (8921). The gripper pull buckle (892) has a waist-shaped hole along the length direction and the limiting rod (895) passes through the waist-shaped hole. The lead wire gathering assembly (85) is used to gather the lead wire, including a V-shaped gathering member (851). The two ends of the gathering member (851) are fixed on the gathering member fixing block (852). The gathering member fixing block (852) is installed on the tooling base plate (86).

10. The stator lead wire production line according to claim 9, characterized in that: The tooling lifting assembly (87) is installed on the support frame of the conveyor line (9) and includes a lifting cylinder (871) and a lifting plate (872). The lifting cylinder (871) is installed on the cylinder fixing plate (875) and connected to the lifting plate (872) through a connector. The lifting plate (872) is equipped with a lifting block (873) and a positioning pin (874). The tooling base plate (86) is provided with a positioning hole that matches the position and shape of the positioning pin (874). A sensing bracket (91) and a blocking assembly (92) are installed on the support frame of the conveyor line (9) corresponding to each work station. The sensing bracket (91) and the blocking assembly (92) are distributed on both sides of the tooling lifting assembly (87).

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