Closed terminal threading device

Abstract

The utility model provides a closed terminal threading device. The closed terminal threading device comprises a feeding assembly which comprises a storage part used for storing terminals; the insulation skin pulling mechanism is located on one side of the feeding assembly, and the insulation skin pulling mechanism is provided with a clamping space used for clamping the wire harness; the wire pulling mechanism is arranged on one side of the insulation skin pulling mechanism and is movably arranged in the first direction, and the wire pulling mechanism is provided with a wire harness clamping cavity which can be opened and closed; and the wire clamping movement mechanism is arranged between the insulating skin pulling mechanism and the wire pulling mechanism, the wire clamping movement mechanism comprises a wire harness main clamping part, the wire harness main clamping part comprises a clamping assembly, and the clamping assembly is provided with a limiting cavity capable of circumferentially limiting a copper wire exposed after the wire harness is stripped. The closed terminal threading device provided by the technical scheme of the utility model can solve the problem that copper wires are easy to be dislocated and exposed in the subsequent process of inserting a closed terminal due to the fact that the copper wires are easy to be scattered after wire stripping is carried out on a wire harness by adopting the existing equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a closed terminal threading device. Background Art

[0002] In the fields of electrical engineering and automation, electrical connections are crucial for ensuring the functionality and safety of equipment. Closed-end terminals, a common electrical connection component, are widely used in various industrial applications due to their enclosed structural design, which effectively prevents corrosion from external environmental factors such as dust and moisture. Their unique fastening method ensures stable contact between the cable and the terminal. However, despite their significant advantages in electrical connections, the handling and assembly of wire harnesses still present a series of challenges in actual operation, especially on automated production lines.

[0003] When using existing equipment to strip wire harnesses, the copper wires are prone to unraveling after the insulation layer is stripped off. Once the copper wires are unraveled, not only will the subsequent processing be more difficult, but the wire harness will also need to be reorganized to ensure the straightness and neatness of the copper wires. Moreover, when inserting closed terminals, the misalignment and leakage of the copper wires will affect the accuracy of terminal crimping, reducing the reliability and safety of the electrical connection. Utility Model Content

[0004] The main purpose of the utility model is to provide a closed terminal threading device, which can solve the problem that the copper wire is easily scattered after the wire harness is stripped using existing equipment, resulting in the copper wire being easily misplaced and leaking during the subsequent insertion into the closed terminal.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a closed terminal threading device, comprising: a loading assembly, including a storage part for storing terminals; an insulation pulling mechanism, located on one side of the loading assembly, the insulation pulling mechanism having a clamping space for clamping a wire harness; a wire pulling mechanism, arranged on one side of the insulation pulling mechanism and movably arranged along a first direction, the wire pulling mechanism having a wire harness clamping cavity that can be opened and closed; a wire clamping movement mechanism, arranged between the insulation pulling mechanism and the wire pulling mechanism, the wire clamping movement mechanism including a wire harness main clamping part, the wire harness main clamping part including a clamping assembly, the clamping assembly having a limiting cavity that can circumferentially limit the copper wire exposed after the wire harness is stripped.

[0006] Furthermore, the clamping assembly includes at least two first clamping splits, at least two first clamping splits are arranged around a first direction, and at least one first clamping split moves in a direction close to or away from the remaining first clamping splits to form a limiting cavity; and / or, there are at least two clamping assemblies, at least two clamping assemblies are arranged in a vertical direction, and the inner diameters of at least two limiting cavities are different.

[0007] Furthermore, the inner diameter of the limiting cavity gradually decreases along the first direction from the wire pulling mechanism to the side where the insulation skin pulling mechanism is located.

[0008] Furthermore, each first clamping body is provided with an accommodating groove, the accommodating groove extends along the first direction, and all the accommodating grooves form a limiting cavity.

[0009] Furthermore, along the first direction, the inner diameter of the accommodating groove gradually decreases, and the small opening end of the accommodating groove is arranged toward the insulation skin pulling mechanism.

[0010] Furthermore, the accommodating groove includes a connected equal diameter section and a reduced diameter section, the inner diameter of the reduced diameter section is smaller than the inner diameter of the equal diameter section, the reduced diameter section is located on the side of the equal diameter section close to the insulation pulling mechanism, and the inner diameter of the reduced diameter section gradually decreases from the wire pulling mechanism to the side where the insulation pulling mechanism is located.

[0011] Furthermore, the wire clamping movement mechanism also includes a first base, a first driving mechanism and a mounting frame. The mounting frame is movably arranged on the first base along the second direction. The main clamping part of the wire harness is installed on the mounting frame. The first driving mechanism is connected to the mounting frame to drive the mounting frame to reciprocate relative to the first base along the second direction.

[0012] Furthermore, the wire clamping movement mechanism also includes a second driving mechanism, the mounting frame includes a second base, a mounting seat and a first movable seat, the main clamping part of the wire harness is installed on the first movable seat, the second base is movably arranged on the first base along the second direction, the second driving mechanism and the mounting seat are both installed on the second base, the first movable seat is slidably arranged on the mounting seat along the vertical direction, the main clamping part of the wire harness is installed on the first movable seat, and the second driving mechanism is driven and connected to the first movable seat to drive the first movable seat to reciprocate in the vertical direction relative to the mounting seat.

[0013] Furthermore, the wire clamping movement mechanism also includes a third driving mechanism, the second base includes a second movable seat and a third movable seat, the second movable seat is movably arranged on the first base along the second direction, and the third movable seat is movably arranged on the second movable seat along the first direction. The third driving mechanism is installed on the second movable seat, the second driving mechanism and the mounting seat are both installed on the third movable seat, and the third driving mechanism is driven and connected to the third movable seat to drive the third movable seat to reciprocate relative to the second movable seat along the first direction.

[0014] Furthermore, the first clamping split is divided into two, and the main clamping part of the wiring harness also includes a first fixed seat and two fourth movable seats movably arranged on the first fixed seat along the second direction. The first fixed seat is installed on the first movable seat, and the two first clamping splits are arranged in a one-to-one correspondence with the two fourth movable seats, and the first clamping split is installed on the corresponding fourth movable seat.

[0015] Furthermore, the wire clamping movement mechanism also includes a wire harness auxiliary clamping portion, which is located on the side of the wire harness main clamping portion away from the insulation pulling mechanism. The wire harness auxiliary clamping portion includes a second fixed seat and two second clamping splits arranged in sequence along the second direction. Each second clamping split can be rotatably arranged on the second fixed seat to form an auxiliary clamping cavity that can be opened and closed.

[0016] Furthermore, the closed terminal threading device also includes a terminal threading mechanism and a limiting structure. The terminal threading mechanism includes a terminal clamping part capable of clamping the terminal. The limiting structure and the terminal clamping part are arranged in sequence along the first direction. The limiting structure includes a third fixed seat and a movable limiting plate. The movable limiting plate is movably arranged in a vertical direction relative to the third fixed seat, and the movable limiting plate is located on the threading path.

[0017] Furthermore, the closed terminal threading device also includes a frame, the loading assembly also includes a feeding part and a conveying mechanism, the storage part is arranged at the discharge end of the feeding part, the conveying mechanism is movably arranged on the frame along a first direction to convey the terminal to the terminal clamping part, the insulation pulling mechanism is installed on the frame, and the insulation pulling mechanism and the wire pulling mechanism are located on one side of the frame.

[0018] The technical solution of the utility model is applied, and a feeding assembly, an insulation pulling mechanism, a wire pulling mechanism and a wire clamping movement mechanism are provided. The insulation pulling mechanism is used to pull down the insulation on the wire harness. There is an annular gap between the insulation to be pulled down and the insulation that does not need to be pulled down. At the annular gap, the wire harness (copper wire) without insulation is exposed, so that the exposed copper wire is located in the clamping space. Then, the insulation pulling mechanism is moved along the first direction to pull the insulation to be pulled down from the wire harness. At this time, the copper wire is still in the clamping space. The wire clamping mechanism is then moved in the second direction to the location of the copper wire, and the copper wire is then positioned within the limiting cavity. The limiting cavity limits the copper wire along its circumferential direction, thereby preventing the copper wire from unraveling. The wire harness clamping cavity of the wire pulling mechanism then clamps the end of the wire harness away from the insulation pulling mechanism. The wire pulling mechanism is then moved in the first direction away from the insulation pulling mechanism, driving the exposed copper wire to move in the first direction away from the insulation pulling mechanism, thereby pulling all the copper wires into the limiting cavity. This arrangement prevents the copper wire exposed after stripping the insulation from unraveling, thereby preventing the copper wire from being misaligned or leaking during subsequent insertion into the closed terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1A schematic structural diagram of a closed terminal threading device according to an embodiment of the present utility model is shown;

[0021] Figure 2 A schematic structural diagram showing another angle of the closed terminal threading device according to an embodiment of the present utility model is shown;

[0022] Figure 3 Shown Figure 2 A magnified view of point A;

[0023] Figure 4 A perspective view of a wire clamping motion mechanism according to an embodiment of the present utility model is shown;

[0024] Figure 5 A schematic structural diagram of a wire clamping motion mechanism according to an embodiment of the present utility model is shown;

[0025] Figure 6 A schematic structural diagram showing another angle of the wire clamping motion mechanism of an embodiment of the present utility model is shown;

[0026] Figure 7 A structural schematic diagram showing another angle of the wire clamping motion mechanism of an embodiment of the present utility model is shown;

[0027] Figure 8 Shown Figure 5 Enlarged view of point B;

[0028] Figure 9 A structural schematic diagram of the first clamping split body of an embodiment of the utility model is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. Frame; 20. Insulation pulling mechanism; 21. Insulation pulling fixture; 30. Wire clamping mechanism; 31. Main clamping portion of the harness; 311. First clamping member; 312. Accommodating groove; 313. Equal diameter section; 314. Reduced diameter section; 315. First fixed seat; 316. Fourth movable seat; 317. Positioning chamber; 32. Auxiliary clamping portion of the harness; 321. Second fixed seat; 322. Second clamping member; 33. First base; 34. First driving mechanism; 341. First screw rod; 342. Coupling; 35. Mounting frame; 351. Second base; 352. Mounting seat; 353. First movable seat; 354. Second movable seat Seat; 355, third movable seat; 36, second driving mechanism; 361, fixed block; 362, driving motor; 363, screw; 364, first transmission belt; 365, movable block; 366, first rotating member; 37, third driving mechanism; 371, second screw; 372, second rotating member; 40, wire pulling mechanism; 41, second clamping part; 50, terminal insertion mechanism; 51, terminal clamping part; 511, third clamping split; 60, limiting structure; 61, third fixed seat; 62, movable limiting plate; 70, loading assembly; 71, feeding part; 72, storage part; 73, conveying mechanism; 80, crimping mechanism; 90, wiring harness. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, in the embodiment of the present invention, Figure 1 As shown, the first direction is the direction of the X-axis, the second direction is the direction of the Y-axis, and the vertical direction is the direction of the Z-axis. The first direction, the second direction, and the third direction are arranged perpendicularly to each other. The wiring harness 90 includes copper wires and an insulating layer covering the outer periphery of the copper wires.

[0033] See also Figures 1 to 9 As shown, the utility model provides a closed terminal threading device, which includes a loading assembly 70, including a storage portion 72 for storing terminals; an insulation pulling mechanism 20, located on one side of the loading assembly 70, and the insulation pulling mechanism 20 has a clamping space for clamping the wire harness 90; a wire pulling mechanism 40, arranged on one side of the insulation pulling mechanism 20, and movably arranged along a first direction, the wire pulling mechanism 40 has a wire harness clamping cavity that can be opened and closed; a wire clamping movement mechanism 30, arranged between the insulation pulling mechanism 20 and the wire pulling mechanism 40, the wire clamping movement mechanism 30 includes a wire harness main clamping portion 31, the wire harness main clamping portion 31 includes a clamping assembly, and the clamping assembly has a limiting cavity 317 that can circumferentially limit the copper wire exposed after the wire harness 90 is stripped.

[0034] In this embodiment, the insulation pulling mechanism 20 is used to pull down the insulation on the wire harness 90. An annular gap is provided between the insulation to be pulled down and the insulation that does not need to be pulled down. The wire harness 90 (copper wire) without insulation is exposed in the annular gap, so that the exposed copper wire is located in the clamping space. Then, the insulation pulling mechanism 20 moves along the first direction to peel off the insulation to be pulled down from the wire harness 90. At this time, the copper wire is still in the clamping space. Then, the wire clamping movement mechanism 30 is moved along the second direction to the position where the copper wire is located. The copper wire is positioned within the limiting cavity 317, which limits the copper wire along its circumference, thereby preventing it from unraveling. The wire harness clamping cavity of the wire pulling mechanism 40 then clamps the end of the wire harness 90 away from the insulation pulling mechanism 20. The wire pulling mechanism 40 then moves in a first direction away from the insulation pulling mechanism 20, driving the exposed copper wire to move in the first direction away from the insulation pulling mechanism 20, thereby pulling all of the copper wire into the limiting cavity 317. This arrangement prevents the copper wire exposed after stripping the insulation from unraveling, thereby preventing the copper wire from misaligning and leaking during subsequent insertion into the closed terminal.

[0035] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the clamping assembly includes at least two first clamping splits 311, at least two first clamping splits 311 are arranged around a first direction, and at least one first clamping split 311 moves in a direction close to or away from the other first clamping splits 311 to form a limiting cavity 317.

[0036] In this embodiment, at least two first clamping parts 311 are arranged around the first direction to form a limiting cavity 317, and at least one first clamping part 311 moves in a direction close to or away from the other first clamping parts 311. In this way, it can adapt to copper wires of different specifications and improve applicability.

[0037] See also Figures 1 to 9 As shown, in one embodiment of the present invention, there are at least two clamping assemblies, the at least two clamping assemblies are arranged in a vertical direction, and the inner diameters of at least two limiting cavities 317 are different.

[0038] In this embodiment, the limiting cavities 317 with different inner diameters can circumferentially limit copper wires with different diameters, thereby improving the applicability of the device.

[0039] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the inner diameter of the limiting cavity 317 gradually decreases along the first direction from the wire pulling mechanism 40 to the side where the insulation skin pulling mechanism 20 is located.

[0040] In this embodiment, the inner diameter of the limiting cavity 317 gradually decreases along the first direction from the wire pulling mechanism 40 to the side where the insulation pulling mechanism 20 is located. This design can gradually gather the copper wire and prevent the copper wire from being scattered after stripping, which is beneficial to the subsequent terminal insertion operation.

[0041] See also Figures 1 to 9 As shown, in one embodiment of the present invention, each first clamping body 311 is provided with a receiving groove 312 , the receiving groove 312 extends along the first direction, and all the receiving grooves 312 form a limiting cavity 317 .

[0042] In this embodiment, the accommodating groove 312 extends along the first direction and serves as a guide path for the wire harness 90, ensuring that the wire harness 90 moves precisely along the predetermined route during movement. The limiting cavity 317 is collectively enclosed by the accommodating grooves 312 on the multiple first clamping segments 311. Because at least one first clamping segment 311 can move toward or away from the other first clamping segments 311, the position of the corresponding first clamping segment 311 can be adjusted as needed, thereby varying the size of the limiting cavity 317 to accommodate copper wires of various sizes.

[0043] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the inner diameter of the accommodating groove 312 gradually decreases along the first direction, and the small end of the accommodating groove 312 is arranged toward the insulation skin pulling mechanism 20.

[0044] In this embodiment, the inner diameter of the accommodating groove 312 gradually decreases along the first direction, and the small end of the accommodating groove 312 is set toward the insulation pulling mechanism 20. In this way, the inner diameter of the formed limiting cavity 317 gradually decreases along the first direction, and the copper wire will gradually be gathered to prevent the copper wire from spreading after peeling, which is beneficial to the subsequent terminal insertion operation.

[0045] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the accommodating groove 312 includes an equal diameter section 313 and a reduced diameter section 314 connected to each other, the inner diameter of the reduced diameter section 314 is smaller than the inner diameter of the equal diameter section 313, and the reduced diameter section 314 is located on the side of the equal diameter section 313 close to the insulation pulling mechanism 20. From the wire pulling mechanism 40 to the side where the insulation pulling mechanism 20 is located, the inner diameter of the reduced diameter section 314 gradually decreases.

[0046] Through the above arrangement, all the accommodating grooves 312 are surrounded by a limiting cavity 317 whose inner diameter gradually decreases along the first direction.

[0047] See also Figures 1 to 9As shown, in one embodiment of the present invention, the wire clamping movement mechanism 30 also includes a first base 33, a first driving mechanism 34 and a mounting frame 35. The mounting frame 35 is movably arranged on the first base 33 along the second direction. The main clamping portion 31 of the wire harness is installed on the mounting frame 35. The first driving mechanism 34 is driven and connected to the mounting frame 35 to drive the mounting frame 35 to reciprocate relative to the first base 33 along the second direction.

[0048] Through the above arrangement, the wire harness main clamping portion 31 can be made to move back and forth along the second direction, thereby driving the wire harness 90 to move back and forth along the second direction.

[0049] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the wire clamping movement mechanism 30 also includes a second driving mechanism 36, the mounting frame 35 includes a second base 351, a mounting seat 352 and a first movable seat 353, the main clamping portion 31 of the wire harness is installed on the first movable seat 353, the second base 351 is movably arranged on the first base 33 along the second direction, the second driving mechanism 36 and the mounting seat 352 are both installed on the second base 351, the first movable seat 353 is slidably arranged on the mounting seat 352 along the vertical direction, the main clamping portion 31 of the wire harness is installed on the first movable seat 353, and the second driving mechanism 36 is driven and connected to the first movable seat 353 to drive the first movable seat 353 to reciprocate in the vertical direction relative to the mounting seat 352.

[0050] Through the above arrangement, the wire harness main clamping portion 31 can be made to reciprocate in the vertical direction and the second direction, thereby driving the wire harness 90 to reciprocate in the vertical direction and the second direction.

[0051] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the wire clamping movement mechanism 30 also includes a third driving mechanism 37, the second base 351 includes a second movable seat 354 and a third movable seat 355, the second movable seat 354 is movably arranged on the first base 33 along the second direction, and the third movable seat 355 is movably arranged on the second movable seat 354 along the first direction, the third driving mechanism 37 is installed on the second movable seat 354, the second driving mechanism 36 and the mounting seat 352 are both installed on the third movable seat 355, and the third driving mechanism 37 is driven and connected to the third movable seat 355 to drive the third movable seat 355 to reciprocate relative to the second movable seat 354 along the first direction.

[0052] In this embodiment, driven by the third driving mechanism 37, the third movable seat 355 can make reciprocating motion along the first direction relative to the second movable seat 354. Since the mounting seat 352 is installed on the third movable seat 355, the third movable seat 355 can drive the mounting seat 352 to make reciprocating motion along the first direction relative to the second movable seat 354, and the first movable seat 353 is slidably set on the mounting seat 352, so that the mounting seat 352 can drive the first movable seat 353 to make reciprocating motion along the first direction relative to the second movable seat 354. Since the main clamping part 31 of the wire harness is installed on the first movable seat 353, the main clamping part 31 of the wire harness can make reciprocating motion along the first direction relative to the second movable seat 354.

[0053] The first drive mechanism 34, the second drive mechanism 36 and the third drive mechanism 37 of the wire clamping motion mechanism 30 of the present application are integrated together, which can reduce the occupied space of the equipment, make the equipment design more compact, and improve space utilization.

[0054] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the second driving mechanism 36 includes a fixed block 361, a driving motor 362, a screw 363, a first transmission belt 364, a moving block 365 and a first rotating member 366. The fixed block 361 and the driving motor 362 are both mounted on the mounting base 352. The top of the moving block 365 is rotatably connected to the screw 363. The moving block 365 is threadedly connected to the screw 363. The top of the screw 363 is fixedly mounted with the first rotating member 366. The first transmission belt 364 is sleeved on the motor shaft of the driving motor 362 and the outer periphery of the first rotating member 366. The motor shaft rotates and drives the first rotating member 366 to rotate through the first transmission belt 364. The first rotating member 366 rotates and drives the screw 363 to rotate, so that the moving block 365 performs reciprocating linear motion along the axial direction of the screw 363. Since the moving block 365 is fixedly connected to the first moving base 353, it can drive the first moving base 353 to perform reciprocating motion in the vertical direction.

[0055] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the first driving mechanism 34 is a motor. The wire clamping motion mechanism 30 also includes a first screw rod 341 and a coupling 342. One end of the coupling 342 is connected to the motor shaft of the motor, and the other end of the coupling 342 is connected to the first screw rod 341. A nut is sleeved on the first screw rod 341, and the nut is fixedly connected to the bottom of the second movable seat 354. When the motor is started, the motor shaft rotates and drives the first screw rod 341 to rotate through the coupling 342. The rotation of the first screw rod 341 drives the nut to move along the length direction of the first screw rod, and the nut drives the second movable seat 354 to perform reciprocating linear motion along the length direction of the first screw rod 341.

[0056] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the third driving mechanism 37 is a motor. The clamping motion mechanism 30 also includes a second screw rod 371 and a second transmission belt. The second screw rod 371 is fixedly mounted on the second movable seat 354. A nut is threadedly connected to the second screw rod 371, and the nut is fixedly connected to the third movable seat 355. A second rotating member 372 is provided at one end of the second screw rod 371. The second transmission belt is sleeved on the outer periphery of the motor's drive shaft and the second rotating member 372. The motor shaft rotates and drives the second rotating member 372 to rotate through the second transmission belt. The rotation of the second rotating member 372 drives the second screw rod to rotate. The rotation of the second screw rod enables the nut to drive the third movable seat 355 to reciprocate relative to the second movable seat 354 along the first direction.

[0057] See also Figures 1 to 9 As shown, in one embodiment of the present invention, there are two first clamping splits 311, and the wiring harness main clamping part 31 also includes a first fixed seat 315 and two fourth movable seats 316 movably arranged on the first fixed seat 315 along the second direction. The first fixed seat 315 is installed on the first movable seat 353, and the two first clamping splits 311 and the two fourth movable seats 316 are arranged in a one-to-one correspondence, and the first clamping split 311 is installed on the corresponding fourth movable seat 316.

[0058] In this embodiment, the fourth movable seat 316 is used to install the first clamping split 311. Since the fourth movable seat 316 is movably arranged along the second direction relative to the first fixed seat 315, it can drive the first clamping split 311 installed thereon to move along the second direction relative to the first fixed seat 315. The two first clamping splits 311 move toward each other along the second direction, and the two first clamping splits 311 are buckled toward each other to form a limiting cavity 317.

[0059] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the wire clamping movement mechanism 30 also includes a wire harness auxiliary clamping portion 32, which is located on the side of the wire harness main clamping portion 31 away from the insulation pulling mechanism 20, and the wire harness auxiliary clamping portion 32 includes a second fixed seat 321 and two second clamping splits 322 arranged in sequence along the second direction, and each second clamping split 322 is rotatably set on the second fixed seat 321 to form an auxiliary clamping cavity that can be opened and closed.

[0060] In this embodiment, a wire harness auxiliary clamping portion 32 is provided. On the one hand, it can provide an additional support limit point for the wire harness 90 in the length direction of the wire harness 90, prevent the wire harness 90 from swinging or deflecting during the movement process, and improve the stability of the wire harness 90 during the movement process. On the other hand, the second clamping split 322 is rotatably provided on the second fixed seat 321. In this way, the opening and closing degree of the auxiliary clamping cavity can be adjusted according to the thickness of the wire harness 90, thereby avoiding the problem of damage to the wire harness 90 due to excessive clamping.

[0061] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the closed terminal threading device also includes a terminal threading mechanism 50 and a limiting structure 60. The terminal threading mechanism 50 includes a terminal clamping portion 51 capable of clamping the terminal. The limiting structure 60 and the terminal clamping portion 51 are arranged in sequence along the first direction. The limiting structure 60 includes a third fixed seat 61 and a movable limiting plate 62. The movable limiting plate 62 is movably arranged in a vertical direction relative to the third fixed seat 61, and the movable limiting plate 62 is located on the threading path.

[0062] In this embodiment, the movable limiting plate 62 is located on the threading path, and can limit the position of the copper wire before it passes through the closed terminal, thereby ensuring the correct positioning of the copper wire and the closed terminal.

[0063] It should be noted that the wire clamping movement mechanism 30, insulation pulling mechanism 20, wire pulling mechanism 40, and terminal insertion mechanism 50 of the present application work in coordination to realize the automation of the entire process of wire stripping, closing, transporting and inserting closed terminals of the wire harness 90, which not only improves the reliability and safety of the connection of the wire harness 90, but also significantly improves production efficiency.

[0064] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the wire pulling mechanism 40 includes a second clamping portion 41, the second clamping portion 41 adopts a servo motor to control the stroke, and the second clamping portion 41 can clamp and release the wire harness 90. The insulation pulling mechanism 20 has two insulation pulling clamps 21 ( Figure 3 Only one insulation pulling clamp 21 is shown (the other is not shown). The two insulation pulling clamps 21 are movably arranged in the vertical direction to clamp and release the wire harness 90. The two insulation pulling clamps 21 are each provided with an arc-shaped groove on one side facing each other, which can adapt to the wire harness 90. This arrangement can not only prevent the wire harness 90 from unraveling, but also ensure that the insulation pulling clamps 21 do not scratch the wire core when clamping the copper wire.

[0065] The two insulation skin pulling clamps 21 move toward each other in the vertical direction until they clamp the copper wire exposed in the annular gap, and then the insulation skin pulling mechanism 20 moves in the first direction to pull the insulation skin to be pulled off from the wire harness 90, and then the wire clamping movement mechanism 30 moves in the second direction to the position of the copper wire, and then the copper wire is located in the limiting cavity 317, and the two insulation skin pulling clamps 21 move away from each other in the vertical direction to release the copper wire, and at the same time, the wire harness clamping cavity of the wire pulling mechanism 40 clamps the wire harness 90 away from one end of the insulation skin pulling mechanism 20, and then the wire pulling mechanism 40 moves in the first direction away from the insulation skin pulling mechanism 20. The insulation skin pulling mechanism 20 moves, and the wire pulling mechanism 40 drives the exposed copper wire to move along the first direction away from the insulation skin pulling mechanism 20, so that all the copper wires can be pulled into the limiting cavity 317. After the wire harness 90 is transported to the position through the wire clamping movement mechanism 30, the two third clamping parts 511 move toward each other to position the terminal, and then the first clamping part 311 will dock with the terminal. After the docking is completed, the second clamping part 41 clamps the wire harness 90 and inserts 1 / 3 into the terminal. After arriving, the second clamping part 41 releases the wire harness 90, the wire clamping movement mechanism 30 leaves, and the wire harness 90 is completely inserted into the terminal.

[0066] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the closed terminal threading device also includes a frame 10, the loading assembly 70 also includes a feeding part 71 and a conveying mechanism 73, the storage part 72 is arranged at the discharge end of the feeding part 71, and the conveying mechanism 73 is movably arranged on the frame 10 along a first direction to convey the terminal to the terminal clamping part 51, and the insulation pulling mechanism 20 is installed on the frame 10, and the insulation pulling mechanism 20 and the wire pulling mechanism 40 are located on one side of the frame 10.

[0067] In this embodiment, the frame 10 provides installation space for the conveying mechanism 73 and the insulation-pulling mechanism 20. Along the second direction, the frame 10 has a first side and a second side disposed opposite each other. The insulation-pulling mechanism 20 and the wire-pulling mechanism 40 are located on either the first side or the second side of the frame 10. The feeder 71 is used to supply closed terminals. After exiting the discharge end of the feeder 71, the closed terminals are temporarily stored in the storage section 72. They are then transported by the conveying mechanism 73 to the terminal clamping section 51 for subsequent terminal insertion.

[0068] like Figure 3 As shown, in one embodiment of the present invention, the terminal clamping portion 51 includes two third clamping splits 511 spaced apart in the vertical direction, and the two third clamping splits 511 are movably arranged in the vertical direction to achieve clamping and releasing of the wiring harness 90. The two third clamping splits 511 are provided with arc grooves on one side facing each other, and the arc grooves can be adapted to the terminals to ensure that the terminals will not be clamped when the insulation skin pulling clamp 21 clamps the copper wire.

[0069] like Figure 1 As shown, in one embodiment of the present invention, the closed terminal threading device further includes a crimping mechanism 80, which is used to press the copper wire into a preset crimping area of ​​the terminal. The crimping mechanism 80 adopts the structure of the existing technology and will not be described in detail here.

[0070] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: a feeding assembly, an insulation pulling mechanism, a wire pulling mechanism and a wire clamping movement mechanism are provided, the insulation pulling mechanism is used to pull down the insulation on the wire harness, and an annular gap is provided between the insulation to be pulled down and the insulation that does not need to be pulled down. At the annular gap, the wire harness (copper wire) without insulation is exposed, so that the exposed copper wire is located in the clamping space, and then the insulation pulling mechanism is moved along the first direction to pull the insulation to be pulled down from the wire harness. At this time, The copper wire is still in the clamping space, and then the wire clamping movement mechanism is moved along the second direction to the position of the copper wire, and then the copper wire is located in the limiting cavity. The limiting cavity forms a limit on the copper wire along the circumference of the copper wire, which can prevent the copper wire from spreading. Then, the wire harness clamping cavity of the wire pulling mechanism clamps the end of the wire harness away from the insulation pulling mechanism, and then the wire pulling mechanism is moved along the first direction away from the insulation pulling mechanism. The wire pulling mechanism drives the exposed copper wire to move along the first direction away from the insulation pulling mechanism, and then all the copper wire can be pulled into the limiting cavity. Through the above arrangement, the copper wire exposed after stripping the insulation can be prevented from spreading, and the problem of copper wire misalignment and leakage during the subsequent insertion into the closed terminal can be avoided.

[0071] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0072] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A closed terminal threading device, characterized in that: include: A loading assembly (70) includes a storage portion (72) for storing terminals; An insulation skin pulling mechanism (20) is located on one side of the feeding assembly (70), and the insulation skin pulling mechanism (20) has a clamping space for clamping a wire harness; A wire pulling mechanism (40) is arranged on one side of the insulation pulling mechanism (20) and is movably arranged along a first direction, and the wire pulling mechanism (40) has a wire harness clamping cavity that can be opened and closed; The wire clamping movement mechanism (30) is arranged between the insulation pulling mechanism (20) and the wire pulling mechanism (40), and the wire clamping movement mechanism (30) includes a wire harness main clamping portion (31), and the wire harness main clamping portion (31) includes a clamping assembly, and the clamping assembly has a limiting cavity (317) capable of circumferentially limiting the copper wire exposed after the wire harness is stripped.

2. The closed terminal threading device according to claim 1, characterized in that: The clamping assembly includes at least two first clamping sub-bodies (311), at least two of the first clamping sub-bodies (311) are arranged around the first direction, at least one of the first clamping sub-bodies (311) moves in a direction close to or away from the other first clamping sub-bodies (311) to form the limiting cavity (317); and / or, there are at least two of the clamping assemblies, at least two of the clamping assemblies are arranged in a vertical direction, and at least two of the limiting cavities (317) have different inner diameters.

3. The closed terminal threading device according to claim 1, characterized in that: From the wire pulling mechanism (40) to the side where the insulation skin pulling mechanism (20) is located, the inner diameter of the limiting cavity (317) gradually decreases along the first direction.

4. The closed terminal threading device according to claim 2, characterized in that: Each of the first clamping parts (311) is provided with a receiving groove (312), the receiving groove (312) extends along the first direction, and all of the receiving grooves (312) enclose the limiting cavity (317).

5. The closed terminal threading device according to claim 4, characterized in that: Along the first direction, the inner diameter of the accommodating groove (312) gradually decreases, and the small opening end of the accommodating groove (312) is arranged toward the insulation skin pulling mechanism (20).

6. The closed terminal threading device according to claim 4, characterized in that: The accommodating groove (312) includes a connected equal-diameter section (313) and a reduced-diameter section (314), the inner diameter of the reduced-diameter section (314) is smaller than the inner diameter of the equal-diameter section (313), and the reduced-diameter section (314) is located on a side of the equal-diameter section (313) close to the insulation pulling mechanism (20). From the wire pulling mechanism (40) to the side where the insulation pulling mechanism (20) is located, the inner diameter of the reduced-diameter section (314) gradually decreases.

7. The closed terminal threading device according to claim 2, characterized in that: The wire clamping movement mechanism (30) further comprises a first base (33), a first driving mechanism (34) and a mounting frame (35); the mounting frame (35) is movably arranged on the first base (33) along a second direction; the wire harness main clamping portion (31) is mounted on the mounting frame (35); the first driving mechanism (34) is drivingly connected to the mounting frame (35) to drive the mounting frame (35) to reciprocate relative to the first base (33) along the second direction.

8. The closed terminal threading device according to claim 7, characterized in that: The wire clamping movement mechanism (30) further includes a second driving mechanism (36); the mounting frame (35) includes a second base (351), a mounting seat (352) and a first movable seat (353); the wire harness main clamping portion (31) is mounted on the first movable seat (353); the second base (351) is movably arranged on the first base (33) along the second direction; the second driving mechanism (36) and the mounting seat (352) are both mounted on the second base (351); the first movable seat (353) is slidably arranged on the mounting seat (352) along the vertical direction; the wire harness main clamping portion (31) is mounted on the first movable seat (353); the second driving mechanism (36) is drivingly connected to the first movable seat (353) to drive the first movable seat (353) to reciprocate relative to the mounting seat (352) along the vertical direction.

9. The closed terminal threading device according to claim 8, characterized in that: The clamping motion mechanism (30) further includes a third driving mechanism (37), the second base (351) includes a second movable base (354) and a third movable base (355), the second movable base (354) is movably arranged on the first base (33) along the second direction, the third movable base (355) is movably arranged on the second movable base (354) along the first direction, the third driving mechanism (37) is mounted on the second movable base (354), the second driving mechanism (36) and the mounting base (352) are both mounted on the third movable base (355), and the third driving mechanism (37) is drivingly connected to the third movable base (355) to drive the third movable base (355) to reciprocate relative to the second movable base (354) along the first direction.

10. The closed terminal threading device according to claim 8, characterized in that: There are two first clamping split bodies (311), and the wiring harness main clamping portion (31) further includes a first fixed seat (315) and two fourth movable seats (316) movably arranged on the first fixed seat (315) along the second direction, the first fixed seat (315) is installed on the first movable seat (353), the two first clamping split bodies (311) and the two fourth movable seats (316) are arranged in a one-to-one correspondence, and the first clamping split bodies (311) are installed on the corresponding fourth movable seats (316).

11. The closed terminal threading device according to any one of claims 2 to 6, characterized in that: The wire clamping movement mechanism (30) also includes a wire harness auxiliary clamping portion (32), which is located on a side of the wire harness main clamping portion (31) away from the insulation pulling mechanism (20), and the wire harness auxiliary clamping portion (32) includes a second fixed seat (321) and two second clamping split bodies (322) arranged in sequence along a second direction, each second clamping split body (322) is rotatably arranged on the second fixed seat (321) to form an auxiliary clamping cavity that can be opened and closed.

12. The closed terminal threading device according to any one of claims 1 to 5, characterized in that: The closed terminal threading device further comprises a terminal threading mechanism (50) and a limiting structure (60), wherein the terminal threading mechanism (50) comprises a terminal clamping portion (51) capable of clamping the terminal, and the limiting structure (60) and the terminal clamping portion (51) are arranged in sequence along the first direction, and the limiting structure (60) comprises a third fixed seat (61) and a movable limiting plate (62), wherein the movable limiting plate (62) is movably arranged in a vertical direction relative to the third fixed seat (61), and the movable limiting plate (62) is located on the threading path.

13. The closed terminal threading device according to claim 12, characterized in that: The closed terminal threading device further comprises a frame (10), the loading assembly (70) further comprises a feeding portion (71) and a conveying mechanism (73), the storage portion (72) is arranged at the discharge end of the feeding portion (71), the conveying mechanism (73) is movably arranged on the frame (10) along the first direction to convey the terminal to the terminal clamping portion (51), the insulation pulling mechanism (20) is installed on the frame (10), and the insulation pulling mechanism (20) and the wire pulling mechanism (40) are located on one side of the frame (10).

Images