A multi-core wire automatic assembly equipment

Abstract

The present invention discloses an automatic assembly device for multi-core wires, including an automatic wire feeding device for providing multi-core wires of set length, a stripping identification and cutting device, a wire core stripping device for stripping the protective sheath at the end of the wire core, an external wire feeding device for providing external wires of set length, a terminal punching device for punching connecting terminals at least at the joint between the external wire and the warp core, and an automatic tape wrapping device for wrapping tape at least at the position of the connecting terminal. The stripping identification and cutting device is used to strip the outer sheath at the end of the multi-core wire to expose the wire core, and is also used to identify the wire core to be cut and make it deviate from other wire cores by a set angle, and is also used to cut the wire core that deviates from the set angle to different lengths. The present invention has a high degree of automation and strong versatility, improves production efficiency, ensures product quality, and meets customer requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of wire assembly, and in particular relates to a multi-core wire automatic assembly device suitable for assembling multi-core shielded wires. Background Art

[0002] In the current wiring harness industry, the utilization rate of shielded wires is increasing; its main advantage is that it can effectively shield external interference signals through the shielding layer or shielding wire, achieving higher and faster signal transmission. However, during the assembly and processing of multi-core shielded wires, complex processes such as wire feeding, stripping, wire cutting, wire twisting, wiring, and terminal taping are required, and some wires even need to be covered with heat shrink tubing. At present, most of the above processes are operated manually, which greatly reduces production efficiency and increases labor costs. It is also easily disturbed by the instability caused by manual operations, resulting in uneven quality of assembled wires and low pass rate.

[0003] At present, in the wire harness industry, the flexibility of wires has many uncontrollable risks in achieving fully automated production; however, the market demand for multi-core shielded wires and other multi-core wires is increasing, and the quality requirements for wires are also increasing. In view of this, it is urgent to develop a multi-core wire automatic assembly equipment that can fully realize the automatic assembly and production of multi-core shielded wires, so as to improve production efficiency, ensure product quality control during production, and meet customer requirements. Summary of the invention

[0004] The present invention aims to overcome at least one of the deficiencies in the above-mentioned prior art. The technical problem solved by the present invention is to provide an automatic assembly device for multi-core wires, which has a high degree of automation, can improve production efficiency, ensure product quality, and meet the requirements of customers.

[0005] In order to solve the technical problems existing in the above-mentioned prior art, an embodiment of the present invention provides an automatic assembly device for a multi-core wire, wherein the multi-core wire comprises a plurality of wire cores and a sheath wrapping the plurality of the wire cores; the automatic assembly device comprises at least the following steps in sequence:

[0006] An automatic wire feeding device, used for providing the multi-core wire of a set length;

[0007] A stripping, identifying and cutting device, used for stripping the outer skin of the end of the multi-core wire to expose the wire core, and also used for identifying the wire core to be cut and making it deviate from the other wire cores by a set angle, and also used for cutting the wire core deviating from the set angle to different lengths;

[0008] A wire core stripping device, used for stripping the protective skin at the end of the wire core;

[0009] An external wire feeding device is used to provide an external wire of a set length;

[0010] A terminal punching device, used for punching a connection terminal at least at the joint between the external wire and the cut wire core;

[0011] The automatic tape wrapping device is used to wrap tape at least at the position where the external wire and the wire core hit the connecting terminal to wrap the connecting terminal.

[0012] Furthermore, the automatic assembly equipment further comprises a heat shrink tube feeding and sheathing device disposed between the wire automatic feeding device and the stripping, identifying and cutting device, and a heat shrink tube heat shrinking device disposed downstream of the automatic tape wrapping device;

[0013] The heat shrink tube feeding and wire sleeve device is used to provide a heat shrink tube of a fixed length, and to sleeve the heat shrink tube on the end of the multi-core wire of a fixed length;

[0014] After the adhesive tape is wound, the heat shrinking device for the heat shrinking tube is used to move the heat shrinking tube into position and then heat it to shrink it.

[0015] Furthermore, the automatic assembly equipment also includes a qualified and unqualified product classification and recovery device arranged downstream of the heat shrink device for the heat shrink tube.

[0016] Furthermore, the automatic wire feeding device comprises a wire unwinding mechanism, a wire feeding and cutting mechanism and a rotating wire unwinding mechanism arranged in sequence;

[0017] The wire unwinding mechanism is used to release the multi-core wire, the wire feeding and cutting mechanism is used to convey the released multi-core wire toward the rotating wire-dropping mechanism, and the rotating wire-dropping mechanism is used to rotate one end of the multi-core wire by 180 degrees and then pull it to a set length;

[0018] After being pulled to a set length, the wire feeding and cutting mechanism is further used to cut to obtain the multi-core wire of a set length and in a U shape.

[0019] Furthermore, the rotating down-line mechanism comprises a line-following mechanism, a line-changing mechanism and a line-clamping and dragging mechanism arranged in a U shape;

[0020] The multi-core wire longitudinally transported by the wire feeding and cutting mechanism passes through the wire aligning mechanism to reach the wire turning mechanism, the wire turning mechanism is used to drive the end of the multi-core wire to rotate 180 degrees in the horizontal plane, and the wire clamping and dragging mechanism is used to clamp the end of the multi-core wire rotated into place and pull it longitudinally.

[0021] Furthermore, the heat shrink tube feeding and threading device comprises a silo mechanism, a lateral pushing mechanism, a shearing mechanism, a heat shrink tube rotating and moving mechanism, and a threading mechanism; the pushing direction of the lateral pushing mechanism is perpendicular to the moving direction of the heat shrink tube rotating and moving mechanism;

[0022] The silo mechanism is used to stack and store a plurality of heat shrink tube materials, and is also used to transfer the heat shrink tube materials at the bottom to the heat shrink tube loading station;

[0023] The lateral pushing mechanism is located at the heat shrink tube loading station and is used to push the heat shrink tube material to move along its axial direction toward the shearing mechanism;

[0024] The shearing mechanism is used to shear the heat shrinkable tube material to obtain the heat shrinkable tube of a certain length;

[0025] The heat shrink tube rotation and movement mechanism is used to clamp the heat shrink tube to move longitudinally and rotate and change direction;

[0026] The wire sleeve mechanism is used to clamp or absorb the heat shrink tube after it is moved into place and rotated and changed direction, and is also used to longitudinally move the heat shrink tube so that it is sleeved on the end of the multi-core wire.

[0027] Further, the heat shrink tube rotation and movement mechanism includes a first longitudinal movement structure, a first rotation structure arranged on the first longitudinal movement structure, and a heat shrink tube clamping structure arranged on the first rotation structure;

[0028] The thread-threading mechanism comprises a second longitudinal moving structure, a vertical moving structure arranged on the second longitudinal moving structure, and a floating suction structure arranged on the vertical moving structure.

[0029] Furthermore, the stripping identification and cutting device includes a stripping mechanism arranged at the first station, a wire twisting identification and separation mechanism arranged at the second station, a wire core correction and cutting mechanism arranged at the third station, and a wire support and positioning mechanism corresponding to the three stations one by one;

[0030] The stripping mechanism is used to cut the outer skin of the multi-core wire on the corresponding wire support and positioning mechanism, and to rotate and drag the outer skin to a set distance to expose the wire core;

[0031] The wire twisting identification and separation mechanism is used to twist the multi-core wire on the corresponding wire support and positioning mechanism, identify and separate the wire cores to be cut, and after separation, it is also used to separate the outer sheath from the multi-core wire;

[0032] The wire core correction and cutting mechanism is used to push the wire core to be cut on the corresponding wire support and positioning mechanism to make it deviate from the set angle of other wire cores. After being pushed into place, it is also used to cut off the wire core of a preset length.

[0033] Furthermore, the peeling mechanism includes a longitudinal motion structure, a second rotating structure disposed on the longitudinal motion structure, and a skin cutting structure connected to the second rotating structure;

[0034] The twisting identification and separation mechanism comprises a twisting structure for twisting the multi-core wire reciprocatingly, a CCD identification structure for identifying the wire core to be cut, a clamping and separation structure, and a sheath stripping structure; the clamping and separation structure is used to clamp the identified wire core to be cut for lateral movement so that a separation angle is formed between the wire core to be cut and other wire cores; after the separation angle is formed, the sheath stripping structure is used to separate the sheath from the multi-core wire;

[0035] The wire core correction and cutting mechanism includes a pushing correction structure and a wire core cutting structure; the pushing correction structure is used to push the separated wire core to be cut, so that it deviates from the other wire cores to the set angle; after being pushed into place, the wire core cutting structure is used to cut the wire core to be cut to a preset length.

[0036] Furthermore, the wire core direction correction and cutting mechanism also includes a wire straightening structure; the wire straightening structure is used to straighten the wire core to be cut along the deviated direction.

[0037] Furthermore, the wire core stripping device includes a cutting, pulling and recycling mechanism and a wire core changing mechanism;

[0038] The cutting, pulling and recovering mechanism is used to cut and pull away the protective sheath of the wire core, and is also used to recover the pulled away protective sheath;

[0039] The wire core direction changing mechanism is used to adjust the directions of the cut wire core and other wire cores so as to facilitate the connection between the cut wire core and the external wire and the connecting terminal.

[0040] Furthermore, the cut wire core is a ground wire without the protective sheath; the wire core stripping device also includes a wire twisting mechanism located downstream of the wire core changing mechanism, and the wire twisting mechanism is used to twist the ground wire.

[0041] Furthermore, the automatic tape wrapping device comprises a longitudinal adjustment platform, a frame arranged on the longitudinal adjustment platform, a rotating mechanism rotatably mounted on the frame, and a tape reel eccentrically arranged on the rotating mechanism;

[0042] The rotating mechanism is provided with a wire avoidance opening extending radially to the rotation center, the rotating mechanism above the wire avoidance opening is provided with a tape limiting structure for the tape to pass through, and the rotating mechanism at the side of the wire avoidance opening is provided with a self-resetting cutting structure;

[0043] The frame is provided with a horizontal driving mechanism for driving the self-resetting cutting structure to cut the tape; the frame below the self-resetting cutting structure is provided with a swing clamping mechanism, which is used to clamp and pull the tape so that the wire core is bonded to the tape.

[0044] Further, the rotating mechanism includes a rotating gear rotatably mounted on the frame and a power module for driving the rotating gear to rotate;

[0045] The swing clamping mechanism comprises a swing arm rotatably mounted on the frame, a tape clamping structure arranged on the swing arm, and a third rotating structure arranged on the frame for driving the swing arm to rotate.

[0046] Further, the heat shrinking device for heat shrinkable tubes comprises a heat shrinkable tube moving mechanism sequentially arranged at a moving station and a heating mechanism arranged at a heating station;

[0047] The heat shrink tube moving mechanism comprises a longitudinal movement module, a vertical movement module arranged on the longitudinal movement module, and a heat shrink tube connecting structure arranged on the vertical movement mechanism;

[0048] The heating mechanism comprises a fixing frame, on which a wire supporting and positioning structure and an air guiding heating structure are arranged.

[0049] Further, the silo mechanism includes a stand, a silo disposed on the stand and open at the bottom, a material support plate slidably disposed on the stand and located at the bottom of the silo, and a transfer drive structure disposed on the stand for driving the material support plate carrying the heat shrink tube material to move toward one side of the silo;

[0050] The lateral pushing mechanism is arranged on the platform on one side of the silo, and is used to push the heat shrink tube material on the material supporting plate to move axially;

[0051] The shearing mechanism comprises a lifting structure arranged on the platform at the downstream end of the lateral pushing mechanism and a shearing piece arranged on the lifting structure.

[0052] Further, the external wire feeding device includes an external wire feeding and cutting mechanism, an external wire longitudinal transfer mechanism and an external wire transverse transfer mechanism;

[0053] The external wire feeding and cutting mechanism is used to cut the external wire material to obtain the external wire of a set length;

[0054] The external wire longitudinal transfer mechanism is used to transport the external wire to the external wire transverse transfer mechanism; the external wire transverse transfer mechanism is used to transfer the external wire to the terminal terminal station.

[0055] Furthermore, the self-resetting cutting structure includes a base body fixed on the rotating mechanism and a cutting knife structure horizontally slidably installed in the base body. One end of the cutting knife structure extending out of the base body is sleeved with an elastic member, one end of the elastic member abuts against the base body, and the other end abuts against the limiting part of the cutting knife structure.

[0056] Due to the adoption of the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0057] The multi-core wire automatic assembly equipment of the present invention comprises an automatic wire feeding device for providing multi-core wires of set length, a stripping identification and cutting device, a wire core stripping device for stripping the protective skin of the wire core end, an external wire feeding device for providing external wires of set length, a terminal punching device for punching a connection terminal at least at the joint between the external wire and the cut wire core, and an automatic tape wrapping device for wrapping the connection terminal with tape at least at the position where the connection terminal is punched between the external wire and the wire core. The stripping identification and cutting device is used to strip the outer skin of the end of the multi-core wire to expose the wire core, and is also used to identify the wire core to be cut and make it deviate from other wire cores by a set angle, and is also used to cut the wire core deviating from the set angle to different lengths.

[0058] The present invention has a high degree of automation, integrating the functions of multi-core wire feeding, stripping, identification, separation and cutting of wire cores to be cut, external wire feeding, terminal connection and automatic tape wrapping, etc. It has a high degree of automation and strong versatility, and improves production efficiency, ensures product quality and meets the requirements of customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a structural layout diagram of the multi-core wire automatic assembly equipment of the present invention;

[0060] Figure 2 yes Figure 1 The structural diagram of the middle section 1;

[0061] Figure 3 yes Figure 2 Structural diagram of the automatic feeding device for the middle wire;

[0062] Figure 4 yes Figure 3 A front view of

[0063] Figure 5 yes Figure 3 Structural exploded diagram of the middle belt rolling conveying structure and cutting structure;

[0064] Figure 6 yes Figure 3 The structural diagram of the middle rotating down-line mechanism;

[0065] Figure 7 yes Figure 6 Structural diagram of the transfer line mechanism;

[0066] Figure 8 yes Figure 2 A schematic diagram of the structure of the heat shrink tube feeding and sleeve device and the first lateral transfer device;

[0067] Fig. 9 yes Figure 8 Structural diagram of the middle silo mechanism;

[0068] Fig.10 yes Fig. 9 A cross-sectional view of

[0069] Fig.11 yes Figure 2 A top view of the mid-peeling identification and cutting device;

[0070] Fig.12 yes Fig.11 Structural diagram of the middle peeling mechanism;

[0071] Fig.13 yes Fig.11 Structural diagram of the middle twisting line identification and separation mechanism;

[0072] Fig.14 yes Fig.13 Structural diagram of the middle twisting line structure;

[0073] Fig.15 yes Fig.13 A schematic diagram of the structure of the clamping and separation structure;

[0074] Fig.16 yes Fig.11 Structural exploded diagram of the center line core correction and cutting mechanism;

[0075] Fig.17 yes Figure 1 Structural schematic diagram of the middle section 2 (including the second lateral handling device, the second lateral transfer device and the wire core stripping device);

[0076] Fig.18 yes Fig.17 A schematic diagram of the structure of the mid-cutting and pulling recovery mechanism;

[0077] Fig.19 yes Figure 1 The structural diagram of the middle section three;

[0078] Fig. 20 yes Fig.19 A schematic diagram of the structure of the middle and outer wiring feeding device and the third lateral transfer device;

[0079] Fig.21 yes Fig.19A schematic diagram of the structure of the middle automatic tape wrapping device, the third lateral transport device, and the fourth lateral transfer device;

[0080] Fig. 22 yes Fig.21 A schematic diagram of the structure of the automatic tape winding device;

[0081] Fig.23 yes Fig. 22 Exploded view of the structure at the middle tape reel location;

[0082] Fig.24 yes Fig. 22 Structural exploded view (omit the longitudinal adjustment table);

[0083] Fig.25 yes Fig.19 A schematic diagram of the structure of the heat shrinking device for the middle heat shrinkable tube, the fourth lateral transfer device and the fourth lateral transport device;

[0084] Fig.26 yes Fig.25 A schematic diagram of the structure of the heat pipe moving mechanism;

[0085] Fig. 27 yes Figure 1 Structural diagram of the middle section 4 (including qualified and non-qualified product classification and recovery device, the fifth lateral transfer device, the second manipulator, and two terminal machines);

[0086] In the figure: 1-wire automatic feeding device, 11-wire unwinding mechanism, 111-first bracket, 112-material roll, 113-driving motor, 12-caching mechanism, 121-second bracket, 122-first line-aligning wheel, 123-second line-aligning wheel, 124-vertical driving member, 125-third line-aligning wheel, 13-wire feeding and cutting mechanism, 131-wire guide structure, 132-drive roller rolling and conveying structure, 133-belt rolling and conveying structure, 1331-third bracket, 1332-first belt transmission unit, 1333-second belt transmission unit, 1334-bidirectional power unit, 134-cutting structure, 1341-first cutting knife, 1342-second cutting knife, 1343-cutting knife power unit, 13 5-power system, 1351-motor, 1352-driving gear, 1353-driven gear, 1354-first pulley, 1355-second pulley, 1356-main belt, 1357-slave belt, 1358-driving pulley, 14-rotating down-line mechanism, 141-line-aligning mechanism, 1411-line-aligning track, 1412-track driving mechanism, 1413-wire clamping and positioning structure, 142-line turning mechanism, 1421-rotating power structure, 1422-clip seat, 1423-roller structure, 1424-driving structure, 1425-base, 1426-mounting seat, 1427-floating buffer assembly, 1428-horizontal driving member, 143-clip dragging mechanism, 1431-linear drive Mechanism, 1432-clamping structure, 2-heat shrink tube feeding and threading device, 21-bin mechanism, 211-stand, 212-bin, 213-material support plate, 214-transfer drive structure, 22-lateral pushing mechanism, 221-belt drive assembly, 222-connecting frame, 223-first pushing structure, 224-second pushing structure, 23-cutting mechanism, 24-heat shrink tube rotating and moving mechanism, 241-first longitudinal moving structure, 242-first rotating structure, 243-heat shrink tube clamping structure, 244-waste guide bucket, 25-threading mechanism, 251-second longitudinal moving structure, 252-vertical moving structure, 253-floating suction structure, 26-waste box, 3-peeling identification and cutting device, 31-stripping mechanism, 311-longitudinal motion structure, 312-second rotating structure, 313-outer skin cutting structure, 3131-connecting shaft, 3132-U-shaped seat, 3133-cutting knife, 3134-pushing arm, 3135-tension spring, 3136-inclined pushing structure, 3137-horizontal pushing rod, 313a-mounting plate, 313b-rotating driving member, 313c-lead screw, 314-carrying platform, 32-thread twisting identification and separation mechanism, 321-thread twisting structure, 3211-mounting frame, 3212-connecting seat, 3213-fixed thread twisting plate, 3214-lifting thread twisting plate, 3215-thread twisting power assembly, 322-clamping separation structure, 3221-lifting driving member, 3222-lateral driving member,3223-wire core clamping structure, 323-skin stripping structure, 3231-longitudinal motion unit, 3232-rotation unit, 3233-skin clamping unit, 33-wire core direction correction and cutting mechanism, 331-pushing and correcting structure, 3311-fourth bracket, 3312-longitudinal pushing member, 332-wire core cutting structure, 333-smoothing structure, 3331-linear motion member, 3332-smoothing clamping member, 34-wire support and positioning mechanism, 341-support plate, 342-clamping claw, 4-wire core stripping device, 41-cutting and pulling recovery mechanism, 411-longitudinal moving platform, 412-support, 413-wire core cutting module, 414-cutting opening and closing control component, 415-absorption recovery unit, 42-wire core Direction-changing mechanism, 421-vertical motion assembly, 422-clamping assembly, 43-twisting mechanism, 5-external wire feeding device, 51-external wire feeding and cutting mechanism, 52-external wire longitudinal transfer mechanism, 521-first longitudinal moving member, 522-lifting member, 523-first external wire clamping member, 53-external wire transverse transfer mechanism, 531-transverse moving member, 532-second longitudinal moving member, 533-floating plate assembly, 534-second external wire clamping member, 6-terminal punching device, 7-automatic tape wrapping device, 71-frame, 711-frame body, 712-rear cover, 713-front cover, 714-annular groove, 72-rotating mechanism, 721-rotating gear, 7211-rolling member, 7212-wire avoidance port, 722- Power module, 7221-driving pulley, 7222-first driven pulley, 7223-second driven pulley, 7224-first belt, 7225-first gear, 7226-second gear, 7227-rotating member, 723-connecting plate, 724-mounting seat, 7241-T-slot, 725-inner support tensioning structure, 726-tensioning drive structure, 73-tape disk, 74-floating buffer limit assembly, 741-limit baffle, 742-threaded connector, 743-first elastic member, 75-tape limit structure, 76-self-resetting cutting structure, 761-seat body, 762-cutting knife structure, 763-second elastic member, 77-horizontal driving mechanism, 78-swing clamping mechanism, 781-swing arm, 7 82-tape clamping structure, 783-rotating motor, 79-longitudinal adjustment table, 8-heat shrink tube heat shrink device, 81-heat shrink tube moving mechanism, 811-longitudinal motion module, 812-vertical motion module, 813-heat shrink tube connection structure, 82-heating mechanism, 821-fixed frame, 822-wire support positioning structure, 823-wind guide heating structure, 9-qualified and unqualified product classification and recovery device, 91-first CCD detection unit, 92-second CCD detection unit, 93-third CCD detection unit, 94-material box, 95-material dividing robot, 96-terminal machine, 101-unloading robot, 102-first lateral transfer device, 103-second lateral transfer device, 104-third lateral transfer device,105-fourth lateral transfer device, 106-fifth lateral transfer device, 107-first lateral transfer device, 108-second lateral transfer device, 109-third lateral transfer device, 110-fourth lateral transfer device, a-multi-core wire, b-external wire, c-heat shrink tube. , DETAILED DESCRIPTION

[0087] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0088] The multi-core wire includes multiple cores and outer sheaths covering the multiple cores, and the cores other than the ground wire are covered with protective sheaths with color markings. The multi-core wire a in this embodiment is a multi-core shielded wire.

[0089] Depend on Figure 1 As shown, this embodiment discloses an automatic assembly device for multi-core wires, which includes at least in sequence according to the process: an automatic wire feeding device 1, a stripping identification and cutting device 3, a wire core stripping device 4, an external wire feeding device 5, a terminal terminal device 6, an automatic tape wrapping device 7 and multiple wire handling and transfer devices.

[0090] The automatic wire feeding device 1 is used to provide a multi-core wire a of a set length (see Figure 2 The stripping identification and cutting device 3 is used to strip the outer skin of the end of the multi-core wire a to expose the wire core, and is also used to identify the wire core to be cut and make it deviate from the other wire cores by a set angle, and is also used to cut the wire core (wire core to be cut) that deviates from the set angle to different lengths. The wire core stripping device 4 is used to strip the protective skin of the end of the wire core. The external wire feeding device 5 is used to provide an external wire b of a set length (see Fig. 20 ). The terminal punching device 6 is used to punch a connection terminal at least at the joint between the external wire b and the cut wire core. The automatic tape wrapping device 7 is used to wrap tape at least at the position where the connection terminal is punched between the external wire b and the wire core to wrap the connection terminal; it can also wrap tape at other positions of the multi-core wire a that need to be wrapped according to process requirements. Multiple wire handling and transfer devices are used to realize the handling and transfer of the multi-core wire a between various devices and various workstations.

[0091] Some multi-core wires need to be covered with heat shrink tubing during assembly due to process requirements (see Figure 8); This embodiment further optimizes the above-mentioned automatic assembly equipment based on process requirements, and adds a heat shrink tube sheathing process between the wire automatic feeding and stripping identification and cutting processes. That is, a heat shrink tube feeding and sheathing device 2 is added between the wire automatic feeding device 1 and the stripping identification and cutting device 3, and a heat shrink tube heat shrinking device 8 is added downstream of the automatic tape wrapping device 7; wherein the heat shrink tube feeding and sheathing device 2 is used to provide a heat shrink tube c of a fixed length, and to sheath the heat shrink tube c on the end of a multi-core wire a of a fixed length; after wrapping the tape, the heat shrink tube heat shrinking device 8 is used to move the heat shrink tube c into place and then heat it to shrink it (the process of moving the heat shrink tube c also plays a role in straightening all the wire cores along their axial direction).

[0092] In addition, in order to reduce the probability of misjudgment, the present embodiment further provides a qualified and unqualified product classification and recovery device 9 based on visual judgment downstream of the heat shrink tube heat shrink device 8 .

[0093] Depend on Figure 2 , Fig.17 , Fig.19 and Fig. 27As shown together, the plurality of wire material handling and transfer devices include a material unloading manipulator 101, a first lateral transfer device 102, a first lateral transfer device 107, a second lateral transfer device 103, a second lateral transfer device 108, a third lateral transfer device 104, a third lateral transfer device 109, a fourth lateral transfer device 105, a fourth lateral transfer device 110, and a fifth lateral transfer device 106, which are arranged in sequence from upstream to downstream. Among them, the material unloading manipulator 101 is used to transport the multi-core wire a provided by the wire automatic feeding device 1 to the first lateral transfer device 102. The first lateral transfer device 102 is used to clamp and position the multi-core wire a and transfer it to the heat shrink tube sleeve installation station, and transfer it to the first transfer station after the heat shrink tube sleeve installation is completed. The first lateral transfer device 107 is used to clamp the multi-core wire a on the first transfer station and transfer it between the three stations corresponding to the stripping identification and cutting device 3, and is also used to transport the multi-core wire a after stripping identification and cutting to the second lateral transfer device 103. The second lateral transfer device 103 is used to clamp and position the multi-core wire a and transfer it in sequence to the three processing stations and the second transfer station corresponding to the wire core stripping device 4. The second lateral transport device 108 is used to transport the multi-core wire a on the second transfer station to the third lateral transfer device 104. The third lateral transfer device 104 is used to clamp and position the multi-core wire a and move it to the terminal taping station for terminal taping, and after the terminal taping, move it to the tape wrapping station for tape wrapping. After tape wrapping, the third lateral transport device 109 transports the multi-core wire a to the fourth lateral transfer device 105. The fourth lateral transfer device 105 clamps and positions the multi-core wire a and transfers it to the heat shrink tube moving station and the third transfer station corresponding to the heat shrink tube heat shrink device 8. The fourth lateral transport device 110 is used to clamp the multi-core wire a on the third transfer station and transport it to the heat shrink tube processing station, and transport it to the fifth lateral transfer device 106 after heating. All lateral transfer devices include a lateral electric cylinder and a clamping and positioning tooling (including multiple rows of clamping jaws arranged longitudinally and working independently, each row including two clamping jaws corresponding to the two ends of the multi-core wire a one-to-one) disposed on the lateral electric cylinder. All lateral transport devices include a lateral electric cylinder, a vertical electric cylinder disposed on the lateral electric cylinder, and a clamping and positioning tooling disposed on the vertical electric cylinder. The lateral transfer device and the lateral transport device are not the focus of improvement of this embodiment and will not be described in detail here.

[0094] The following installation and assembly process sequence explains the specific structure and working process of each device in detail:

[0095] 1. By Figures 2 to 7As shown together, the automatic wire feeding device 1 in this embodiment is specially developed and designed for flexible wires. Specifically, it includes a wire unwinding mechanism 11, a wire feeding and cutting mechanism 13, and a rotating down-line mechanism 14 arranged in sequence; wherein, the wire unwinding mechanism 11 is used to release the multi-core wire a, the wire feeding and cutting mechanism 13 is used to convey the released multi-core wire a to the direction of the rotating down-line mechanism 14, and the rotating down-line mechanism 14 is used to rotate one end of the multi-core wire a 180 degrees and then pull it to a set length; after pulling to the set length, the wire feeding and cutting mechanism 13 is also used to cut to obtain a multi-core wire a of a set length and in a U shape; cutting to obtain a U-shaped multi-core wire a after turning the wire not only broadens the required range of cutting length, but also facilitates handling and transfer, and facilitates subsequent processes at both ends at the same time, greatly improving production efficiency.

[0096] In order to ensure the accuracy of the cutting length and the smoothness of the wire feeding process, the present embodiment optimizes the above structure by adding a buffer mechanism 12 between the wire unwinding mechanism 11 and the wire feeding and cutting mechanism 13 for pre-pulling the multi-core wire a to a set length.

[0097] In this embodiment, the specific implementation structure of the wire unwinding mechanism 11 includes a first bracket 111, a material roll 112 rotatably mounted on the first bracket 111, and a driving motor 113 fixed on the first bracket 111 for driving the material roll 112 to rotate.

[0098] The cache mechanism 12 includes a second bracket 121, on which a first aligning wheel 122 and a second aligning wheel 123 are longitudinally spaced and rotatably installed. A vertical driving member 124 is provided on the second bracket 121 between the first aligning wheel 122 and the second aligning wheel 123, and a third aligning wheel 125 is provided on the vertical driving member 124. The multi-core wire a passes through the first aligning wheel 122, the third aligning wheel 125 and the second aligning wheel 123 in sequence to be pre-stretched to a certain length and then enters the wire feeding and cutting mechanism 13.

[0099] The wire feeding and cutting mechanism 13 includes a wire guide structure 131 , a driving roller rolling and conveying structure 132 , a belt rolling and conveying structure 133 and a cutting structure 134 .

[0100] The wire guide structure 131 includes two detachably mounted guide blocks, and a guide groove adapted to the multi-core wire a is formed between the two guide blocks. The transmission roller rolling conveying structure 132 includes a main transmission roller and a slave transmission roller (the guide block is provided with an escape opening for avoiding the main transmission roller and the slave transmission roller), and the two cooperate with each other to realize the rolling conveying of the multi-core wire a. The belt rolling conveying structure 133 includes a third bracket 1331, a first belt transmission unit 1332 and a second belt transmission unit 1333 vertically spaced and slidably mounted on the third bracket 1331, a bidirectional power unit 1334 mounted on the third bracket 1331 and used to drive the first belt transmission unit 1332 and the second belt transmission unit 1333 to move relative to or opposite to each other, and a power system 135 arranged on the third bracket 1331 and used to provide synchronous reverse driving force for the first belt transmission unit 1332 and the second belt transmission unit 1333. The first belt transmission unit 1332 and the second belt transmission unit 1333 each include a mounting seat, a pulley I and a pulley II rotatably mounted on the mounting seat, and a belt I wound between the pulleys I and II. The bidirectional power unit 1334 includes a bidirectional screw rotatably mounted on the third bracket 1331 and a belt transmission assembly for driving the bidirectional screw to rotate. The two mounting seats are respectively threadedly connected with two threaded sections of the bidirectional screw. A guide sleeve (or linear bearing) is provided on the mounting seat, and a guide shaft adapted to the guide sleeve (or linear bearing) is provided on the third bracket 1331. The cutting structure 134 includes a first cutting knife 1341 and a second cutting knife 1342 vertically spaced and slidably mounted on the third bracket 1331; a cutting knife power unit 1343 (the specific structure is the same as that of the bidirectional power unit 1334, which will not be described in detail here) is installed on the third bracket 1331. The power system 135 includes a motor 1351 installed on the third bracket 1331, a driving gear 1352 connected to the motor 1351, a driven gear 1353 meshing with the driving gear 1352, a first pulley 1354 arranged on the driving gear 1352, and a second pulley 1355 arranged on the driven gear 1353; a driving pulley 1358 installed on the mounting seat and coaxially linked with the pulley I, a main belt 1356 is wound between the first pulley 1354 and the corresponding driving pulley 1358; a slave belt 1357 is wound between the second pulley 1355 and the corresponding driving pulley 1358.

[0101] The rotating down-line mechanism 14 includes a U-shaped arrangement of a line-following mechanism 141, a line-turning mechanism 142, and a line-clamping and dragging mechanism 143. The multi-core wire a longitudinally transported by the wire feeding and cutting mechanism 13 passes through the line-following mechanism 141 to the line-turning mechanism 142. The line-turning mechanism 142 is used to drive the end of the multi-core wire a to rotate 180 degrees (turn) in the horizontal plane. The line-clamping and dragging mechanism 143 is used to clamp the end of the multi-core wire a rotated into place and pull it longitudinally. The multi-core wire a downstream of the wire feeding and cutting mechanism 13 forms a U-shaped structure.

[0102] Among them, the wire-aligning mechanism 141 can prevent the wire from bending and affecting the final cutting accuracy; it includes two relatively arranged along-line rails 1411, a wire clamping and positioning structure 1413, and a rail driving mechanism 1412 for driving the two along-line rails 1411 to move relative to or away from each other; a contoured wire groove and an avoidance opening adapted to the multi-core wire a are formed between the two along-line rails 1411, and the wire clamping and positioning structure 1413 corresponds to the avoidance opening and is used to clamp and position the multi-core wire a when the two along-line rails 1411 are separated (when the unloading robot 101 is unloading).

[0103] The wire transfer mechanism 142 includes a stopper structure for clamping and fixing the end of the multi-core wire a and a rotary power structure 1421 for driving the stopper structure to rotate; the stopper structure includes a clamping seat 1422, a floating clamping structure, and a driving structure 1424 for driving the clamping seat 1422 and the floating clamping structure to move relative to or opposite to each other; a clamping groove adapted to the multi-core wire a is formed between the clamping seat 1422 and the floating clamping structure. The specific structure of the floating clamping structure is: including a base 1425, a mounting seat 1426 slidably mounted on the base 1425, and a floating buffer assembly 1427 (including a guide shaft and a spring to facilitate the passage of non-radial wires) arranged between the mounting seat 1426 and the base 1425; a roller structure 1423 is arranged on the mounting seat 1426, and a clamping groove is formed between the roller structure 1423 and the clamping seat 1422. A horizontal driving member 1428 is provided on the top of the mounting seat 1426. During the rotation process, the horizontal driving member 1428 is used to push the roller structure 1423 so that it cooperates with the wire clamping seat 1422 to clamp the end of the multi-core wire a.

[0104] The line clamping and dragging mechanism 143 includes a longitudinally driven linear driving mechanism 1431 and a clamping structure 1432 disposed on the linear driving mechanism 1431 .

[0105] The working process of the automatic wire feeding device 1 is briefly described below based on the above structure:

[0106] First, the multi-core wire a is released by the wire unwinding mechanism 11 and pre-stretched to a certain length by the buffer mechanism 12, and then enters the wire guide structure 131 in the wire feeding and cutting mechanism 13. The driving roller rolling conveying structure 132 and the belt rolling conveying structure 133 cooperate to perform longitudinal rolling and conveying of the multi-core wire a. The multi-core wire a conveyed by longitudinal rolling passes through the line following mechanism 141 in the rotating down-line mechanism 14 to reach the line turning mechanism 142; the line turning mechanism 142 clamps the end of the multi-core wire a and rotates (turns) 180 degrees in the horizontal plane, and releases the multi-core wire a after it is in place; the wire clamping and dragging mechanism 143 clamps the end of the multi-core wire a that has been rotated to a certain position (released by the line turning mechanism 142), and then pulls it longitudinally in the direction opposite to the conveying direction, and after pulling it to a set length (at this time, the multi-core wire a downstream of the wire feeding and cutting mechanism 13 forms a U-shaped structure); the cutting structure 134 in the wire feeding and cutting mechanism 13 acts to obtain the multi-core wire a of a set length and in a U shape.

[0107] The multi-core wire a is U-shaped, which can broaden the required range of cutting length, facilitate handling and transfer, and facilitate subsequent processing at both ends at the same time; it greatly increases versatility and flexibility, while improving production efficiency.

[0108] The unloading robot 101 transports the U-shaped multi-core wire a to the first lateral transfer device 102 (held and positioned by the clamping and positioning tooling thereon); the first lateral transfer device 102 moves to the heat shrink tube installation station.

[0109] 2. By Figures 8 to 9 As shown together, the heat shrink tube feeding and threading device 2 in this embodiment includes a silo mechanism 21, a lateral pushing mechanism 22, a shearing mechanism 23, a heat shrink tube rotating and moving mechanism 24, a threading mechanism 25 and a waste box 26 for storing material heads. The pushing direction (axial direction of the heat shrink tube material) of the lateral pushing mechanism 22 is perpendicular to the moving direction of the heat shrink tube rotating and moving mechanism 24; the silo mechanism 21 is used to stack and store multiple heat shrink tube materials, and is also used to transfer the heat shrink tube material at the bottom to the heat shrink tube loading station; the lateral pushing mechanism 22 is located at the heat shrink tube loading station, and is used to push the heat shrink tube material to move along its axial direction toward the shearing mechanism 23; the shearing mechanism 23 is used to shear the heat shrink tube material to obtain a heat shrink tube c of a certain length; the heat shrink tube rotating and moving mechanism 24 is used to clamp the heat shrink tube c obtained by shearing and move it longitudinally and rotate it to change direction; the wire sleeve mechanism 25 is used to clamp or absorb the heat shrink tube c that has been moved into place and rotated and changed direction, and is also used to longitudinally move the heat shrink tube c so that it is sleeved on the end of the multi-core wire a (at this time, the multi-core wire a has been sent to the heat shrink tube sleeve station by the first lateral transfer device 102).

[0110] Among them, the silo mechanism 21 includes a platform 211, a silo 212 arranged on the platform 211 and open at the bottom, a material supporting plate 213 slidably arranged on the platform 211 and located at the bottom of the silo 212, and a transfer driving structure 214 arranged on the platform 211 for driving the material supporting plate 213 carrying the heat shrink tube material to move toward one side of the silo 212 (heat shrink tube loading station); the lateral pushing mechanism 22 is arranged on the platform 211 on one side of the silo 212, and is used to push the heat shrink tube material on the material supporting plate 213 to move axially; the shearing mechanism 23 includes a lifting structure arranged on the platform 211 at the downstream end of the lateral pushing mechanism 22 and a shearing piece arranged on the lifting structure.

[0111] The lateral pushing mechanism 22 includes a belt transmission component 221 and a connecting frame 222 disposed on the belt of the belt transmission component 221; the upstream end of the connecting frame 222 is provided with a first pushing structure 223, and the downstream end is provided with a second pushing structure 224, the second pushing structure 224 includes a longitudinal member and a pushing block disposed on the longitudinal member. Initially, the second pushing structure 224 avoids the heat shrink tube material, and pushes the material using the first pushing structure 223. After pushing to a certain position, the belt transmission component 221 is reset, and then the second pushing structure 224 continues to push the material.

[0112] The heat shrink tube rotating and moving mechanism 24 includes a first longitudinal moving structure 241, a first rotating structure 242 arranged on the first longitudinal moving structure 241, and two heat shrink tube clamping structures 243 arranged on the first rotating structure 242 (to facilitate the supply of heat shrink tube c to both ends of the multi-core wire a); in addition, a waste guide bucket 244 is also provided on the first rotating structure 242.

[0113] The thread-sleeving mechanism 25 includes a second longitudinal moving structure 251, a vertical moving structure 252 disposed on the second longitudinal moving structure 251, and two floating suction structures 253 disposed on the vertical moving structure 252 at intervals therefrom (to avoid damaging the heat shrink tube c when sucking it).

[0114] Based on the above structure, the working process of the heat shrink tube feeding and sleeve wire device 2 is briefly described below:

[0115] The transfer drive structure 214 in the silo mechanism 21 drives the material support plate 213 carrying the heat shrink tube material to move to the heat shrink tube loading station. The lateral pushing mechanism 22 pushes the heat shrink tube material at the heat shrink tube loading station to move it along its axial direction toward the shearing mechanism 23; after moving a set distance, the shearing mechanism 23 shears the heat shrink tube material to obtain a heat shrink tube c of a certain length (before the shearing mechanism 23 cuts, the end of the heat shrink tube material is clamped by the heat shrink tube clamping structure 243 in the heat shrink tube rotating moving mechanism 24). After the first longitudinal moving structure 241 carries the heat shrink tube clamping structure 243 clamping the heat shrink tube c and moves longitudinally for a distance, the first rotating structure 242 moves and turns 90 degrees (so that the axial direction of the heat shrink tube c is consistent with the direction of the end of the multi-core wire a). The vertical moving structure 252 in the wire-sleeving mechanism 25 carries the floating suction structure 253 and moves downward to absorb the turned heat shrink tube c, and then the second longitudinal moving structure 251 moves toward the multi-core wire a (at this time, the first lateral transfer device 102 carrying the multi-core wire a has moved to the heat shrink tube sleeve installation station. During the sleeve installation of the heat shrink tube c, the clamps move in an alternating manner to prevent the multi-core wire a from moving in the first lateral transfer device 102), completing the sleeve installation of the heat shrink tube c on the corresponding end of the multi-core wire a (after sleeve installation, it is clamped and fixed by the corresponding clamps).

[0116] The first lateral conveying device 107 conveys the multi-core wire a of the first lateral transfer device 102 .

[0117] 3. By Figures 11 to 16 As shown together, the peeling identification and cutting device 3 in this embodiment includes a peeling mechanism 31 arranged in sequence at the first station, a twisting identification and separation mechanism 32 arranged at the second station, a wire core correction and cutting mechanism 33 arranged at the third station, and a wire support and positioning mechanism 34 (including a support plate 341 and multiple rows of longitudinally arranged clamps 342) corresponding to the three stations. The first transverse transport device 107 transports the multi-core wire a on the first transverse transfer device 102 to the first wire support and positioning mechanism 34, and can also realize the sequential transport of the multi-core wire a between the three wire support and positioning mechanisms 34.

[0118] Among them, the peeling mechanism 31 is used to cut the outer skin of the multi-core wire a transported to the first wire support and positioning mechanism 34, and rotate and drag the outer skin to a set distance to expose the wire core. The twisting and identifying separation mechanism 32 is used to twist the multi-core wire a transported to the second wire support and positioning mechanism 34, identify and separate the wire core to be cut (the wire core to be cut in this embodiment is the ground wire), and after separation, it is also used to separate the outer skin from the multi-core wire a. The wire core correction and cutting mechanism 33 is used to push the ground wire of the multi-core wire a transported to the third wire support and positioning mechanism 34, so that it deviates from the other wire cores by a set angle (90 degrees, for easy cutting). After being pushed into place, it is also used to cut off the wire core of a preset length (wherein the ground wire at one end of the multi-core wire a is cut flush along the root of the outer skin, and the ground wire at the other end is reserved for a certain length for easy wiring).

[0119] In this embodiment, the peeling mechanism 31 (two sets are provided to operate on both ends of the multi-core wire a at the same time) includes a longitudinal movement structure 311, a carrier 314 arranged on the longitudinal movement structure 311, a second rotating structure 312 arranged on the carrier 314, and an outer skin cutting structure 313 connected to the second rotating structure 312. Among them, the outer skin cutting structure 313 includes a connecting shaft 3131 connected to the second rotating structure 312, a U-shaped seat 3132 connected to the connecting shaft 3131, two cutting knives 3133 that are relatively and slidably installed on the ends of the U-shaped seat 3132, and two pushing arms 3134 that are relatively and hinged on the sides of the U-shaped seat 3132; a tension spring 3135 is arranged between the two pushing arms 3134 (for providing elastic force that makes the two cutting knives 3133 have a tendency to move in opposite directions), one end of the pushing arm 3134 is movably connected to the cutting knives 3133 (a limiting opening is provided on the cutting knives 3133 for one end of the pushing arm 3134 to extend into, and the end of the pushing arm 3134 extending into the limiting opening has an arc-shaped surface); it also includes an opening and closing driving structure for driving the pushing arm 3134 to rotate around the hinge center to make the two cutting knives 3133 move relative to or opposite to each other.

[0120] Among them, the opening and closing driving structure includes an inclined pushing structure 3136 mounted on the connecting shaft 3131, a horizontal pushing rod 3137 and a power structure for driving the horizontal pushing rod 3137 to move horizontally; the pushing end of the horizontal pushing rod 3137 passes through the center of the second rotating structure 312 and is slidably installed in the connecting shaft 3131, and the connecting part radially extends out of the connecting shaft 3131 and is connected to the inclined pushing structure 3136, and the other end of the pushing arm 3134 is provided with a rolling element, which abuts against the guide inclined surface of the inclined pushing structure 3136.

[0121] The power structure includes a mounting plate 313a slidably mounted on the carrier 314, a rotary drive member 313b disposed on the mounting plate 313a, and a lead screw 313c connected to the rotary drive member 313b, the lead screw 313c is threadedly connected to the carrier 314, and a horizontal push rod 3137 is rotatably connected to the mounting plate 313a. The rotary drive member 313b drives the lead screw 313c to rotate, thereby causing the mounting plate 313a to drive the horizontal push rod 317 and the inclined push structure 3136 to move longitudinally; the moving inclined push structure 3136 causes the push arm 3134 to rotate.

[0122] In this embodiment, the twisting identification and separation mechanism 32 (two sets are also provided accordingly) includes a twisting structure 321 for reciprocatingly twisting the multi-core wire a (the part without the outer skin), a CCD identification structure for identifying the ground wire (adapted to the position of the clamping and separation structure 322), a clamping and separation structure 322 and an outer skin stripping structure 323; the clamping and separation structure 322 is used to clamp the identified ground wire for lateral movement, so that the ground wire and other wire cores form a separation angle (see Fig.15 ); After the separation angle is formed, the outer skin peeling structure 323 is used to separate the outer skin from the multi-core wire a.

[0123] The wire twisting structure 321 includes a mounting frame 3211, a connecting seat 3212 which is installed on the mounting frame 3211 with an interval between the upper and lower parts and is laterally slidable; a fixed wire twisting plate 3213 is provided on one connecting seat 3212, and a lifting wire twisting plate 3214 is provided on the other connecting seat 3212, and a wire twisting power assembly 3215 for driving the two connecting seats 3212 to slide synchronously and in opposite directions is provided on the mounting frame 3211. The lifting wire twisting plate 3214 includes a lifting cylinder and a wire twisting plate arranged on the lifting cylinder. The wire twisting power assembly 3215 includes a rotating motor, a gear, and a rack arranged on the connecting seat 3212; the rack is located on the upper and lower sides of the gear. Driven by the rotating motor, the lifting wire twisting plate 3214 and the fixed wire twisting plate 3213 clamp the multi-core wire a and twist it repeatedly.

[0124] The clamping and separating structure 322 includes a lifting driving member 3221 , a transverse driving member 3222 connected to the lifting driving member 3221 , and a wire core clamping structure 3223 connected to the transverse driving member 3222 .

[0125] The skin peeling structure 323 includes a longitudinal motion unit 3231 , a rotation unit 3232 disposed on the longitudinal motion unit 3231 , and a skin clamping unit 3233 disposed on the rotation unit 3232 .

[0126] In this embodiment, the wire core direction correction and cutting mechanism 33 (two sets are also provided accordingly) includes a pushing direction correction structure 331 and a wire core cutting structure 332; the pushing direction correction structure 331 is used to push the separated ground wire to deviate from other wire cores to 90 degrees; after being pushed into place, the wire core cutting structure 332 is used to cut the ground wire to a preset length. In order to ensure the cutting accuracy, this embodiment further optimizes the structure of one set of the wire core direction correction and cutting mechanism 33, and the optimized wire core direction correction and cutting mechanism 33 includes a wire straightening structure 333; before cutting, the wire straightening structure 333 is used to straighten the ground wire to be cut along the direction deviating from 90 degrees.

[0127] The pushing and correcting structure 331 includes a fourth bracket 3311 and a longitudinal pushing member 3312 disposed on the fourth bracket 3311 .

[0128] The wire-drawing structure 333 includes a linear motion member 3331 that moves laterally and a wire-drawing clamping member 3332 disposed on the linear motion member 3331 .

[0129] Based on the above structure, the working process of the peeling identification and cutting device 3 is briefly described below:

[0130] The outer skin cutting structure 313 in the stripping mechanism 31 operates, clamps and cuts the outer skin of the multi-core wire a transported by the first transverse transport device 107 to the first wire support and positioning mechanism 34, and then the longitudinal motion structure 311 and the second rotating structure 312 cooperate to rotate and drag the outer skin to a set distance to expose the wire core.

[0131] The first transverse transport device 107 transports the multi-core wire a that has been stripped to the second wire support and positioning mechanism 34. The wire twisting structure 321 in the wire twisting identification and separation mechanism 32 twists the multi-core wire a, and stops twisting when the CCD identification structure identifies that the ground wire has been twisted to a preset position; the wire core clamping structure 3223 in the clamping and separation structure 322 clamps the identified ground wire, and then the transverse driving member 3222 moves transversely to form a separation angle between the ground wire and other wire cores. After the separation angle is formed, the outer skin clamping unit 3233 in the outer skin stripping structure 323 clamps the outer skin that is rotated and dragged to a set distance, and the longitudinal motion unit 3231 and the rotation unit 3232 work together to completely separate the outer skin from the multi-core wire a.

[0132] After the outer sheath is completely separated from the multi-core wire a, the first transverse transport device 107 transports the multi-core wire a to the third wire support and positioning mechanism 34. The pushing and correcting structure 331 in the wire core correcting and cutting mechanism 33 pushes the separated ground wire to deviate from the other wire cores to 90 degrees; after being pushed into place, one of the wire core cutting structures 332 directly cuts off all the exposed ground wires at one end of the multi-core wire a, and the exposed ground wires at the other end are first straightened by the wire straightening structure 333, and then another wire core cutting structure 332 cuts the ground wires to a preset length.

[0133] The first lateral transport device 107 transports the cut multi-core wire a to the second lateral transfer device 103. The second lateral transfer device 103 clamps the multi-core wire a and moves it to the wire core stripping device 4.

[0134] 4. By Fig.17 and Fig.18 As shown together, the wire core stripping device 4 in this embodiment includes a cutting, pulling and recovering mechanism 41, a wire core changing mechanism 42 and a wire twisting mechanism 43; wherein the cutting, pulling and recovering mechanism 41 is used to cut and pull out the protective skin of the wire core, and is also used to recover the pulled-off protective skin; the wire core changing mechanism 42 is used to adjust the direction of the reserved length of the ground wire and other wire cores, so as to facilitate the ground wire to be connected to the external wire b and the connection terminal.

[0135] The cutting, pulling and recycling mechanism 41 includes a longitudinal moving platform 411, a support 412 arranged on the longitudinal moving platform 411, two wire core cutting modules 413 vertically slidably mounted on the support 412, a cutting opening and closing control component 414 (including a bidirectional lead screw and a transmission structure) arranged on the support 412 for driving the two wire core cutting modules 413 to move relative to or opposite to each other, and a suction recovery unit 415 arranged on the support 412, wherein the suction port of the suction recovery unit 415 corresponds to the cutting part of the wire core cutting module 413. The multi-core wire a in this embodiment has three wire cores in total, and the wire core cutting module 413 is used to simultaneously cut the protective skins of the two wire cores other than the ground wire, further improving the production efficiency.

[0136] In order to facilitate subsequent wiring, it is necessary to adjust the direction of the reserved ground wire. The wire core direction-changing mechanism 42 includes a vertical motion component 421 and a clamping component 422 arranged on the vertical motion component 421; the clamping component 422 clamps the ground wire at the end of the outer skin and rotates it 90 degrees, while the other wire cores are compressed and bent 90 degrees by the clamping component 422. That is, the directions of the ground wire and other wire cores are interchanged, the ground wire changes from the original horizontal to the vertical, and the other wire cores change from the original vertical to the horizontal. The wire twisting mechanism 43 is used to tighten the ground wire after the direction change, which is convenient for wiring and terminal connection. The wire twisting mechanism 43 is basically the same as the existing structure and will not be described here.

[0137] The working process of the wire core stripping device 4 is briefly described below based on the above structure:

[0138] After the second lateral transfer device 103 clamps the multi-core wire a and moves into position, the longitudinal moving platform 411 in the cutting and pulling recovery mechanism 41 moves toward the multi-core wire a, and the cutter opening and closing control component 414 controls the wire core cutter module 413 to clamp and cut the protective sheath of the wire core, and then the longitudinal moving platform 411 moves in the opposite direction and pulls off the protective sheath of the wire core, and the suction recovery unit 415 recovers the pulled-away protective sheath.

[0139] The second lateral transfer device 103 clamps the multi-core wire a and continues to move downstream. After it reaches the position, the vertical movement component 421 in the wire core changing mechanism 42 moves the set distance, and the clamping component 422 clamps the ground wire at the end of the outer skin and rotates 90 degrees. At the same time, the other wire cores are compressed and bent 90 degrees by the clamping component 422.

[0140] The second lateral transfer device 103 clamps the multi-core wire a and continues to move downstream, and after reaching the position, the wire tightening mechanism 43 tightens the ground wire.

[0141] The second lateral transport device 108 transports the multi-core wire a to the third lateral transfer device 104. The third lateral transfer device 104 transfers the multi-core wire a to the terminal crimping station and the tape wrapping station.

[0142] 5. By Fig.19 and Fig. 20 As shown, the external wire feeding device 5 in this embodiment includes an external wire feeding and cutting mechanism 51, an external wire longitudinal transfer mechanism 52 and an external wire transverse transfer mechanism 53; wherein, the external wire feeding and cutting mechanism 51 is used to cut the external wire material to obtain an external wire b of a set length; the external wire longitudinal transfer mechanism 52 is used to transport the external wire b to the external wire transverse transfer mechanism 53; the external wire transverse transfer mechanism 53 is used to transfer the external wire b to the terminal crimping station.

[0143] Among them, the external wire feeding and cutting mechanism 51 adopts a rolling conveying feeding method, and the specific structure is not described here.

[0144] The external wire longitudinal transfer mechanism 52 includes a first longitudinal moving member 521 , a lifting member 522 disposed on the first longitudinal moving member 521 , and a first external wire clamping member 523 disposed on the lifting member 522 .

[0145] The external wire transverse transfer mechanism 53 includes a transverse moving member 531 , a second longitudinal moving member 532 disposed on the transverse moving member 531 , a floating plate assembly 533 disposed on the second longitudinal moving member 532 , and a second external wire clamping member 534 disposed on the floating plate assembly 533 .

[0146] The third lateral transfer device 104 clamps the multi-core wire a (the ground wire has been tightened) and moves it to the terminal crimping station. At this time, the external wire lateral transfer mechanism 53 also moves the external wire b to the terminal crimping station.

[0147] 6. By Fig.19 As shown, the terminal device 6 is used to connect the ground wire of the multi-core wire a and the external wire b.

[0148] After the connection terminals are formed, the third lateral transfer device 104 clamps the multi-core wire a connected to the external wire b and moves to the tape wrapping station.

[0149] 7. By Figure 21 to Figure 24 As shown together, the automatic tape winding device 7 in this embodiment includes a longitudinal adjustment platform 79, a frame 71 installed on the longitudinal adjustment platform 79, a rotating mechanism 72 rotatably installed on the frame 71, and a tape reel 73 eccentrically arranged on the rotating mechanism 72; the rotating mechanism 72 is provided with a wire avoidance opening 7212 radially extending to the rotation center (the corresponding frame 71 is also provided with an avoidance opening), the rotating mechanism 72 above the wire avoidance opening 7212 is provided with a tape limiting structure 75 (including a main body and a limiting opening arranged on the main body) for the tape to pass through, the rotating mechanism 72 on the side of the wire avoidance opening 7212 is provided with a self-resetting cutting structure 76, and the frame 71 is provided with a horizontal driving mechanism 77 for driving the self-resetting cutting structure 76 to cut the tape; the frame 71 below the self-resetting cutting structure 76 is provided with a swing clamping mechanism 78, and the swing clamping mechanism 78 is used to clamp and pull the tape so that the ground wire and the external wire b are bonded to the tape at the connection terminal.

[0150] In this embodiment, the rotating mechanism 72 includes a rotating gear 721 (meshing teeth are hidden in the figure) rotatably mounted on the frame 71 and a power module 722 for driving the rotating gear 721 to rotate. The rotating gear 721 includes a disc-shaped body; a boss is arranged around the periphery of the disc-shaped body, and the boss is provided with meshing teeth; and a plurality of rolling elements 7211 are arranged at intervals along the circumferential direction on the disc surface of the disc-shaped body.

[0151] The frame 71 includes a frame body 711, a rear cover 712 and a front cover 713; an annular limiting groove for matching with the boss is formed between the frame body 711 and the front cover 713; the rear cover 712 is provided with an annular groove 714 concentric with the disc-shaped body, and the rolling element 7211 is rollingly set in the annular groove 714 to ensure the smooth rotation of the rotating gear 721.

[0152] The power module 722 includes a driving pulley 7221, a first driven pulley 7222 and a second driven pulley 7223, which are all rotatably arranged on the frame 71; a first belt 7224 is arranged around the driving pulley 7221, the first driven pulley 7222 and the second driven pulley 7223; a first gear 7225 is fixed on the first driven pulley 7222, and a second gear 7226 is fixed on the second driven pulley 7223, and the first gear 7225 and the second gear 7226 are both engaged with the rotating gear 721; a rotating member 7227 for driving the driving pulley 7221 to rotate is arranged on the frame 71.

[0153] In this embodiment, a connecting plate 723 is provided on the rotating gear 721 of the rotating mechanism 72, a mounting seat 724 for mounting the tape reel 73 is provided on the connecting plate 723, an inner support tensioning structure 725 for abutting against the inner wall surface of the tape reel 73 is radially slidably installed on the mounting seat 724, and a tensioning driving structure 726 for driving the inner support tensioning structure 725 to slide when the rotating gear 721 stops rotating and before the tape is cut is provided on the frame 71. Among them, a T-shaped notch 7241 is provided on the mounting seat 724. The inner support tensioning structure 725 includes a body slidably installed in the T-shaped notch 7241, a bevel groove structure is provided at the bottom of the body, and a reset member is provided between the body and the T-shaped notch 7241, which is used to make the body have an elastic force that tends to slide toward the center. The tensioning driving structure 726 includes a horizontal driving member and a push rod provided on the horizontal driving member, and one end of the push rod can pass through the connecting plate 723 to cooperate with the bevel groove structure.

[0154] In this embodiment, the automatic wire tape wrapping device also includes a floating buffer limit assembly 74 for axially limiting the tape reel 73; the floating buffer limit assembly 74 includes a limit baffle 741, a threaded connector 742 passed through the limit baffle 741, and a first elastic member 743 sleeved between the limit baffle 741 and the head of the threaded connector 742; the threaded connector 742 is used for threaded connection with the mounting seat 724, and the tape reel 73 is located between the limit baffle 741 and the connecting plate 723.

[0155] In this embodiment, the self-resetting cutting structure 76 includes a base body 761 fixed on the rotating gear 721, and a cutting knife structure 762 horizontally slidably installed in the base body 761. One end of the cutting knife structure 762 extending out of the base body 761 is sleeved with an elastic member (referred to as the second elastic member 763). One end of the second elastic member 763 abuts against the base body 761, and the other end abuts against the limiting portion of the cutting knife structure 762. The second elastic member 763 is used to provide an elastic force that causes the cutting knife structure 762 to have a tendency to move in a direction away from the tape.

[0156] In this embodiment, the swing clamping mechanism 78 includes a swing arm 781 rotatably mounted on the frame 71 , a tape clamping structure 782 disposed on the swing arm 781 , and a rotating motor 783 disposed on the frame 71 for driving the swing arm 781 to rotate.

[0157] The working process of the automatic tape wrapping device 7 is briefly described below based on the above structure:

[0158] The third lateral transfer device 104 clamps the multi-core wire a connected to the external wire b and moves it so that the connection position of the external wire b and the ground wire enters the rotation center through the wire avoidance opening 7212. At this time, the swing clamping mechanism 78 has clamped the supporting tape and pulled it out to a certain length. After moving into place, the connection position of the external wire b and the ground wire is bonded to the tape.

[0159] The power module 722 drives the rotating gear 721 to carry the tape reel 73 to rotate counterclockwise by a certain angle (at this time, a certain amount of tape has been wound around the connection position), and the swing clamping mechanism 78 releases the tape and swings back to avoid the rotation of the rotating gear 721 and the tape reel 73; the power module 722 drives the rotating gear 721 to continue to rotate counterclockwise; while rotating, the longitudinal adjustment table 79 cooperates with the action (consistent with the principle of manual tape wrapping).

[0160] After the tape is wound, the rotating gear 721 stops rotating, and the tensioning driving structure 726 drives the inner tensioning structure 725 to slide until it is in close contact with the inner wall surface of the tape reel 73; then the horizontal driving mechanism 77 drives the cutting part of the cutting knife structure 762 in the self-resetting cutting structure 76 to extend out of the seat body 761 to cut the tape.

[0161] The longitudinal adjustment platform 79 drives the frame 71 to retreat and reset, thereby avoiding the movement of the multi-core wire a.

[0162] The third lateral transport device 109 transports the tape-wrapped multi-core wire a to the fourth lateral transfer device 105. The fourth lateral transfer device 105 clamps and positions the multi-core wire a and transfers it to the heat shrink tube moving station corresponding to the heat shrink tube heat shrink device 8 and the third transfer station.

[0163] 8. By Fig.25 and Fig.26 As shown together, the heat shrink tube heat shrink device 8 in this embodiment includes a heat shrink tube moving mechanism 81 which is sequentially arranged at the moving station and a heating mechanism 82 which is arranged at the heating station.

[0164] Among them, the heat shrink tube moving mechanism 81 includes a longitudinal movement module 811, a vertical movement module 812 arranged on the longitudinal movement module 811, and a heat shrink tube connecting structure 813 arranged on the vertical movement module 812; the heat shrink tube connecting structure 813 is a slot structure for clamping with the heat shrink tube c. The vertical movement module 812 drives the heat shrink tube connecting structure 813 to move downward so that it is clamped with the heat shrink tube c. Then the longitudinal movement module 811 drives the heat shrink tube connecting structure 813 and the heat shrink tube c to move longitudinally (axially of the wire), and moves the heat shrink tube c to the set position so that the heat shrink tube c can cover the connecting terminal and the wrapped tape. During the movement of the heat shrink tube c, all the wire cores can be straightened. The heating mechanism 82 includes a fixed frame 821, and a wire support positioning structure 822 and an air guide heating structure 823 (air guide cover and hot air gun) are arranged on the fixed frame 821.

[0165] The fourth lateral transfer device 105 clamps the heat shrink tube c and moves the multi-core wire a to the third transfer station (during the transfer process, the clamp clamps the heat shrink tube c to prevent movement), and the fourth lateral transport device 110 clamps the multi-core wire a on the third transfer station and transports it to the wire support positioning structure 822 set at the heat shrink tube processing station for positioning. The heat shrink tube c is just in the air guide cover, the hot air gun starts to heat, and the hot air acts on the heat shrink tube c through the air guide cover to achieve heat shrinkage.

[0166] After the heat shrinking is completed, the fourth transverse transport device 110 clamps the multi-core wire a on the wire support and positioning structure 822 and transports it to the fifth transverse transfer device 106 for subsequent classification and recycling.

[0167] IX. Fig. 27 As shown, the qualified and unqualified product classification and recovery device 9 in this embodiment includes a first CCD detection unit 91 for detecting whether the external wiring is qualified, a second CCD detection unit 92 for detecting whether the terminal is exposed and qualified, a third CCD detection unit 93 for detecting whether the position of the heat shrink tube meets the requirements, a material sorting robot 95 and a plurality of material boxes 94. In this embodiment, the terminal punching device 6 mentioned above is only used for punching terminals at the connection of the external wiring, and the terminal machine 96 for punching terminals for other wire cores is arranged between the first CCD detection unit 91 and the second CCD detection unit 92. The specific structure and working principle of the terminal punching device 6 and the terminal machine 96 are the same as those in the prior art, and will not be repeated here.

[0168] To sum up, the present invention has a high degree of automation and integrates the functions of multi-core wire feeding, heat shrink tube sheathing, stripping, identification and separation of wire cores to be cut, external wire feeding, terminal connection, automatic tape wrapping, heat shrinkage of heat shrink tubes, classified unloading, etc. It has a high degree of automation and strong versatility, and improves production efficiency, ensures product quality, and meets the requirements of customers.

[0169] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic assembly device for multi-core wires, the multi-core wires comprising a plurality of wire cores and a sheath covering the plurality of the wire cores; characterized in that: The automatic assembly equipment at least includes the following steps: An automatic wire feeding device, used for providing the multi-core wire of a set length; A stripping, identifying and cutting device, used for stripping the outer skin of the end of the multi-core wire to expose the wire core, and also used for identifying the wire core to be cut and making it deviate from the other wire cores to a set angle, and also used for cutting the wire core deviating from the set angle to different lengths; A wire core stripping device, used for stripping the protective skin at the end of the wire core; An external wire feeding device is used to provide an external wire of a set length; A terminal punching device, used for punching a connection terminal at least at the joint between the external wire and the cut wire core; The wire core stripping device comprises a cutting, pulling and recycling mechanism and a wire core direction changing mechanism; the cutting, pulling and recycling mechanism is used to cut and pull away the protective skin of the wire core, and is also used to recover the pulled away protective skin; the wire core direction changing mechanism is used to adjust the direction of the cut wire core and other wire cores, so as to facilitate the cutting wire core to connect with the external wire and make the connection terminal; The automatic tape wrapping device is used to wrap tape at least at the position where the external wire and the wire core hit the connecting terminal to wrap the connecting terminal.

2. The multi-core wire automatic assembly equipment according to claim 1, characterized in that: The automatic assembly equipment also includes a heat shrink tube feeding and sheathing device arranged between the wire automatic feeding device and the stripping, identifying and cutting device, and a heat shrink tube heat shrinking device arranged downstream of the automatic tape wrapping device; The heat shrink tube feeding and wire sleeve device is used to provide a heat shrink tube of a fixed length, and to sleeve the heat shrink tube on the end of the multi-core wire of a fixed length; After the adhesive tape is wound, the heat shrinking device for the heat shrinking tube is used to move the heat shrinking tube into position and then heat it to shrink it.

3. The multi-core wire automatic assembly equipment according to claim 2, characterized in that: The automatic assembly equipment also includes a qualified and unqualified product classification and recovery device arranged downstream of the heat shrink device for the heat shrink tube.

4. The multi-core wire automatic assembly equipment according to claim 1, characterized in that: The automatic wire feeding device comprises a wire unwinding mechanism, a wire feeding and cutting mechanism and a rotating wire unwinding mechanism which are arranged in sequence; The wire unwinding mechanism is used to release the multi-core wire, the wire feeding and cutting mechanism is used to convey the released multi-core wire toward the rotating wire-dropping mechanism, and the rotating wire-dropping mechanism is used to rotate one end of the multi-core wire by 180 degrees and then pull it to a set length; After being pulled to a set length, the wire feeding and cutting mechanism is further used to cut to obtain the multi-core wire of a set length and in a U shape.

5. The multi-core wire automatic assembly equipment according to claim 4, characterized in that: The rotating wire lowering mechanism comprises a wire following mechanism, a wire turning mechanism and a wire clamping and dragging mechanism arranged in a U shape; The multi-core wire longitudinally transported by the wire feeding and cutting mechanism passes through the wire aligning mechanism to reach the wire turning mechanism, the wire turning mechanism is used to drive the end of the multi-core wire to rotate 180 degrees in the horizontal plane, and the wire clamping and dragging mechanism is used to clamp the end of the multi-core wire rotated into place and pull it longitudinally.

6. The multi-core wire automatic assembly equipment according to claim 2, characterized in that: The heat shrink tube feeding and threading device comprises a silo mechanism, a lateral pushing mechanism, a shearing mechanism, a heat shrink tube rotating and moving mechanism, and a threading mechanism; the pushing direction of the lateral pushing mechanism is perpendicular to the moving direction of the heat shrink tube rotating and moving mechanism; The silo mechanism is used to stack and store a plurality of heat shrink tube materials, and is also used to transfer the heat shrink tube materials at the bottom to the heat shrink tube loading station; The lateral pushing mechanism is located at the heat shrink tube loading station and is used to push the heat shrink tube material to move along its axial direction toward the shearing mechanism; The shearing mechanism is used to shear the heat shrinkable tube material to obtain the heat shrinkable tube of a certain length; The heat shrink tube rotation and movement mechanism is used to clamp the heat shrink tube to move longitudinally and rotate and change direction; The wire sleeve mechanism is used to clamp or absorb the heat shrink tube after it is moved into place and rotated and changed direction, and is also used to longitudinally move the heat shrink tube so that it is sleeved on the end of the multi-core wire.

7. The multi-core wire automatic assembly equipment according to claim 6, characterized in that: The heat shrink tube rotation and movement mechanism comprises a first longitudinal movement structure, a first rotation structure arranged on the first longitudinal movement structure, and a heat shrink tube clamping structure arranged on the first rotation structure; The thread-threading mechanism comprises a second longitudinal moving structure, a vertical moving structure arranged on the second longitudinal moving structure, and a floating suction structure arranged on the vertical moving structure.

8. The multi-core wire automatic assembly equipment according to claim 1, characterized in that: The stripping identification and cutting device comprises a stripping mechanism arranged at the first station, a wire twisting identification and separation mechanism arranged at the second station, a wire core direction correction and cutting mechanism arranged at the third station, and a wire support and positioning mechanism corresponding to the three stations one by one; The stripping mechanism is used to cut the outer skin of the multi-core wire on the corresponding wire support and positioning mechanism, and to rotate and drag the outer skin to a set distance to expose the wire core; The wire twisting identification and separation mechanism is used to twist the multi-core wire on the corresponding wire support and positioning mechanism, identify and separate the wire cores to be cut, and after separation, it is also used to separate the outer sheath from the multi-core wire; The wire core correction and cutting mechanism is used to push the wire core to be cut on the corresponding wire support and positioning mechanism to make it deviate from the set angle of other wire cores. After being pushed into place, it is also used to cut off the wire core of a preset length.

9. The multi-core wire automatic assembly equipment according to claim 8, characterized in that: The peeling mechanism includes a longitudinal motion structure, a second rotating structure arranged on the longitudinal motion structure, and a skin cutting structure connected to the second rotating structure; The twisting identification and separation mechanism comprises a twisting structure for twisting the multi-core wire reciprocatingly, a CCD identification structure for identifying the wire core to be cut, a clamping and separation structure, and a sheath stripping structure; the clamping and separation structure is used to clamp the identified wire core to be cut for lateral movement so that a separation angle is formed between the wire core to be cut and other wire cores; after the separation angle is formed, the sheath stripping structure is used to separate the sheath from the multi-core wire; The wire core correction and cutting mechanism includes a pushing correction structure and a wire core cutting structure; the pushing correction structure is used to push the separated wire core to be cut, so that it deviates from the other wire cores to the set angle; after being pushed into place, the wire core cutting structure is used to cut the wire core to be cut to a preset length.

10. The multi-core wire automatic assembly equipment according to claim 9, characterized in that: The wire core direction correction and cutting mechanism also includes a wire straightening structure; the wire straightening structure is used to straighten the wire core to be cut along the deviated direction.

11. The multi-core wire automatic assembly equipment according to claim 1, characterized in that: The cut wire core is a ground wire without the protective sheath; the wire core stripping device also includes a wire twisting mechanism located downstream of the wire core changing mechanism, and the wire twisting mechanism is used to twist the ground wire.

12. The multi-core wire automatic assembly equipment according to claim 1, characterized in that: The automatic tape wrapping device comprises a longitudinal adjustment platform, a frame arranged on the longitudinal adjustment platform, a rotating mechanism rotatably mounted on the frame, and a tape reel eccentrically arranged on the rotating mechanism; The rotating mechanism is provided with a wire avoidance opening extending radially to the rotation center, the rotating mechanism above the wire avoidance opening is provided with a tape limiting structure for the tape to pass through, and the rotating mechanism at the side of the wire avoidance opening is provided with a self-resetting cutting structure. The frame is provided with a horizontal driving mechanism for driving the self-resetting cutting structure to cut the tape; the frame below the self-resetting cutting structure is provided with a swing clamping mechanism, which is used to clamp and pull the tape so that the wire core is bonded to the tape.

13. The multi-core wire automatic assembly equipment according to claim 12, characterized in that: The rotating mechanism includes a rotating gear rotatably mounted on the frame and a power module for driving the rotating gear to rotate; The swing clamping mechanism comprises a swing arm rotatably mounted on the frame, a tape clamping structure arranged on the swing arm, and a third rotating structure arranged on the frame for driving the swing arm to rotate.

14. The multi-core wire automatic assembly equipment according to claim 2, characterized in that: The heat shrinking device for heat shrinkable tubes comprises a heat shrinkable tube moving mechanism arranged in sequence at a moving station and a heating mechanism arranged at a heating station; The heat shrink tube moving mechanism comprises a longitudinal movement module, a vertical movement module arranged on the longitudinal movement module, and a heat shrink tube connecting structure arranged on the vertical movement mechanism; The heating mechanism comprises a fixing frame, on which a wire supporting and positioning structure and an air guiding heating structure are arranged.

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