Auxiliary crimping device for wiring harness terminals

Abstract

The present invention relates to the technical field of wire harness terminal crimping, and specifically to a wire harness terminal auxiliary crimping device, comprising a receiving base plate and a wire harness and terminal arranged on the receiving base plate, wherein the receiving base plate is provided with a mounting tube sleeved on the outside of the wire harness, and the receiving base plate is provided with a combing-type crimping mechanism. This wire harness terminal auxiliary crimping device enables staff to use the combing-type crimping mechanism to comb the scattered thin wires after peeling when crimping the combing wires and terminals, ensuring that the terminals can be correctly and stably connected to the wire harness, ensuring normal crimping of the wire harness and terminals, and at the same time, avoiding the thin wires from being pulled out or broken due to being clamped, thereby ensuring the use effect of the wire harness terminals after crimping to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness terminal crimping, in particular to an auxiliary crimping device for wire harness terminals. Background Art

[0002] Crimping, as a core process in automotive wiring harness production, is not only an efficient and reliable way to connect conductors, but also determines the mechanical and electrical performance of the connection between terminals and wires. Through the precise coordination of molds and crimping equipment, raw materials can be transformed into semi-finished wiring harnesses, realizing the smooth conduction of electrical signals from wires to terminals, or from terminals to wires.

[0003] In order to improve the crimping efficiency, the wire harness terminal auxiliary crimping device with announcement number CN118137256B can cooperate with the second crimping block to screw the stripped end of the wire harness before crimping the wire harness and the terminal, so as to facilitate the subsequent rapid connection with the terminal, thereby improving the crimping efficiency of the terminal and the wire harness. It also includes stripping the stripped end of the wire harness when crimping the terminal and the wire harness, so that the metal wires in the wire harness are exposed, and then the processed wire harness is placed in the placement groove on the top of the placement table, and the stripped end of the wire harness is placed on the second torsion component in the lower clamping plate, and then the power component is started to drive the upper clamping plate to gradually move downward along the direction of the positioning rod. During this process, the clamping plate can gradually press the wire harness tightly under the drive of the upper clamping plate.

[0004] However, we found in actual use that it is necessary to peel the front end of the wire harness before placing it in the placement slot, but the stripped wire harness (especially multiple strands of thin wire) is easy to spread out when it is not fixed, resulting in the first extrusion block and the second extrusion block shifting and fitting (forming a complete circle), and the stripped wire harness cannot be completely confined within the formed circle, that is, some thin wires are clamped by the first extrusion block and the second extrusion block. This causes the first torsion assembly and the second torsion assembly to twist the wire harness, and this part of the clamped thin wires may be pulled out or broken, which to a certain extent affects the use effect of the wire harness terminal after pressing.

[0005] To this end, we propose a wiring harness terminal auxiliary crimping device. Summary of the Invention

[0006] A technical problem to be solved by the present application is: how to design an auxiliary crimping device for wiring harness terminals that can prevent thin wires from being broken.

[0007] In order to solve the above technical problems, an embodiment of the present application provides an auxiliary crimping device for wire harness terminals, including a receiving base plate and a wire harness and terminal arranged on the receiving base plate, wherein the receiving base plate is provided with a mounting tube sleeved on the outside of the wire harness, and the receiving base plate is provided with a combing wire crimping mechanism.

[0008] In some embodiments, the diameter of the mounting tube on a side close to the terminal is larger than the diameter on a side close to the wiring harness, and the mounting tube consists of an upper mounting section and a lower mounting section.

[0009] In some embodiments, the combing-type crimping mechanism includes a working frame arranged on a receiving base plate, a crimping assembly is arranged on the working frame, and a combined combing assembly cooperating with an upper mounting section and a lower mounting section is arranged on the receiving base plate.

[0010] In some embodiments, the combined combing line assembly includes two first push rods respectively arranged on both sides of the supporting base plate, the ends of the first push rods are provided with connecting frames, the connecting frames are provided with second push rods, the upper mounting section is respectively provided on the connecting frames on both sides, the lower mounting section is respectively provided on the two second push rod ends on both sides, and the lower mounting section is respectively slidably provided on the connecting frames on both sides.

[0011] In some embodiments, the upper mounting section and the lower mounting section are both installed with a pressing plate via bolts on the side away from the terminal, a plurality of supporting bent plates are provided on the pressing plate, an extrusion spring is provided on the supporting bent plate (10), and a flexible combing layer is provided at the end of the extrusion spring.

[0012] In some embodiments, the crimping assembly includes an upper die and a lower die slidably disposed on a working frame, and the working frame is provided with a lifting member connected to the upper die and the lower die.

[0013] In some embodiments, the lifting member includes two bidirectional screw rods that are respectively rotatably arranged on both sides of the working frame, the upper mold and the lower mold are respectively threadedly connected on both sides of the bidirectional screw rod, and a drive shaft is provided on the top of the bidirectional screw rod. The two drive shafts are connected by a belt transmission, and a drive motor is provided on the working frame, and the drive motor is connected to any drive shaft.

[0014] In some embodiments, a guide baffle is provided at the insulation crimping position of the upper die close to the terminal.

[0015] In some embodiments, a trigger block is provided on one side of the lower mold, a side bracket is provided on the receiving bottom plate, and two trigger switches are provided on the side bracket.

[0016] In some embodiments, a fixed frame is provided on one side of the lower mold, fixed magnets are provided on the inner walls on both sides of the fixed frame, the trigger block is slidably provided on the fixed frame, and movable magnets are provided on the outer walls on both sides of the trigger block to respectively cooperate with adjacent fixed magnets. Two switching top blocks for squeezing the trigger block are staggered at the top and bottom of the side bracket.

[0017] The present invention has at least the following beneficial effects: when the staff is crimping the comb wires and terminals, they can use the comb wire crimping mechanism to comb the scattered thin wires after the skin is stripped, ensuring that the terminals can be correctly and stably connected to the wire harness, ensuring the normal pressing of the wire harness and the terminals, and at the same time, it can also avoid the thin wires being pulled out or broken due to being clamped, and to a certain extent ensure the use effect of the wire harness terminals after pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Another structural diagram;

[0020] Figure 3 For the present invention Figure 1 Schematic diagram of the flat cross-section structure;

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of area A in the middle;

[0022] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0023] Figure 6 For the present invention Figure 2 Schematic diagram of the local cross-section structure;

[0024] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle C area;

[0025] Figure 8 This is a schematic structural diagram of the combined combing line assembly of the present invention;

[0026] Figure 9 For the present invention Figure 8 Another structural diagram;

[0027] Figure 10 This is an exploded schematic diagram of a partial structure of the combined combing line assembly of the present invention;

[0028] Figure 11 This is a schematic diagram of the upper installation section structure of the present invention;

[0029] Figure 12 This is a schematic structural diagram of the press-fit assembly of the present invention;

[0030] Figure 13 Schematic diagram of the structure of the flexible thread-repelling layer after position adjustment of the present invention.

[0031] In the figure: 1. Supporting base plate; 2. Mounting tube; 3. Combing wire crimping mechanism; 31. Working frame; 4. Combined combing wire assembly; 41. First push rod; 42. Connecting frame; 43. Second push rod; 5. Crimping assembly; 51. Upper die; 52. Lower die; 6. Lifting member; 61. Bidirectional screw rod; 62. Driving shaft; 63. Driving motor; 7. Upper mounting section; 8. Lower mounting section; 9. Pressing plate; 10. Supporting bent plate; 11. Extrusion spring; 12. Flexible combing wire layer; 13. Guide baffle; 14. Trigger block; 15. Side bracket; 16. Trigger switch; 17. Fixed frame; 18. Fixed magnet; 19. Movable magnet; 20. Switching top block. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1-13 The present invention provides a technical solution: an auxiliary crimping device for wire harness terminals, comprising a receiving base plate 1 and a wire harness and terminal arranged on the receiving base plate 1, the receiving base plate 1 being provided with a mounting tube 2 sleeved on the outside of the wire harness, and the receiving base plate 1 being provided with a combing crimping mechanism 3; the receiving base plate 1, the wire harness and the terminal are all existing structures, the wire harness adopts a wire harness with multiple strands of fine wires inside, and the terminal adopts an open U-shaped crimping terminal, that is, the terminal can be sent from below to fit with the wire harness, which is also the conventional and commonly used terminal type; the receiving base plate 1 is also provided with an adjustable peeling device and a manipulator structure for providing terminal transportation, which is an existing common structure and has nothing to do with the main innovation of this solution, and is not shown in the figure. When the wire harness needs to be pressed, the wire harness is pushed forward, and the peeling device is also shifted synchronously, so that the wire harness enters the peeling structure of the peeling device to complete the peeling work. When the wire harness is peeled, the mounting tube 2 is sleeved on the outside of the wire harness and does not affect the normal peeling.

[0034] The diameter of the mounting tube 2 close to the terminal is larger than the diameter close to the wiring harness, and the mounting tube 2 is composed of an upper mounting section 7 and a lower mounting section 8; the mounting tube 2 has a variable diameter structure, and the diameter close to the terminal is larger than the diameter close to the wiring harness, so that it is convenient to shift the mounting tube 2 and comb the wiring harness. After the mounting tube 2 contacts the scattered wiring harness, it has a certain pre-gathering effect. At the same time, dividing the mounting tube 2 into the upper mounting section 7 and the lower mounting section 8 can facilitate the installation of the mounting tube 2 to the outside of the wiring harness, that is, it can be installed at any position of the wiring harness without inserting it from the end of the wiring harness.

[0035] The combing-type crimping mechanism 3 is connected to the mounting tube 2, which can drive the mounting tube 2 to move along the wire harness, gradually moving from the insulating section of the wire harness to the skin-pulling section of the wire harness to achieve combing and pressing of the skin-pulling section of the wire harness, and can also drive the terminal to shift to the outside of the skin-pulling section of the wire harness to complete the crimping work between the skin-pulling section of the wire harness and the terminal.

[0036] The combing-line crimping mechanism 3 includes a working frame 31 arranged on the supporting base plate 1, a crimping assembly 5 is arranged on the working frame 31, and a combined combing-line assembly 4 is provided on the supporting base plate 1 to cooperate with the upper mounting section 7 and the lower mounting section 8; the combined combing-line assembly 4 includes two first push rods 41 respectively arranged on both sides of the supporting base plate 1, and the ends of the first push rods 41 are respectively provided with connecting frames 42, and the connecting frames 42 are provided with second push rods 43, the two sides of the upper mounting section 7 are respectively arranged on the connecting frames 42, and the two sides of the lower mounting section 8 are respectively arranged on the ends of the two second push rods 43, and the two sides of the lower mounting section 8 are respectively slidably arranged on the connecting frames 42.

[0037] The first push rods 41 are evenly arranged on both sides of the supporting base plate 1, and can evenly push the connecting frame 42 and the upper mounting section 7 to shift. At the same time, the second push rods 43 are also respectively arranged on the connecting frame 42. The operation of the second push rods 43 can evenly push the lower mounting section 8 to shift, thereby realizing the even shift of the upper mounting section 7 and the lower mounting section 8 on both sides. When the first push rod 41 and the second push rod 43 are working, the crimping assembly 5 starts and works.

[0038] Example 2: Please refer to Figure 11The present invention provides a technical solution: an auxiliary crimping device for a wiring harness terminal, wherein the upper mounting section 7 and the lower mounting section 8 are both equipped with a pressing plate 9 on the side away from the terminal by bolts, and a plurality of supporting bent plates 10 are provided on the pressing plate 9, and an extrusion spring 11 is provided on the support bent plate 10, and a flexible combing layer 12 is provided at the end of the extrusion spring 11. The pressing plate 9 is a semicircular structure, and its size can be replaced according to the wiring harness. The pressing plate 9 can be detachably installed by bolts, which improves the convenience of use and the universal performance of the equipment; the surface of the flexible thinning layer is provided with a wear-resistant coating to achieve long-term use of the pressing plate 9. The reason for using the flexible thinning layer is to protect the wire harness sheathing section from damage. At the same time, it can fit the wire rope as much as possible and squeeze and straighten more wire ropes; when the upper mounting section 7 and the lower mounting section 8 are displaced, the pressing plate 9 and the plurality of supporting bent plates 10 can be driven to shift. At the beginning, the flexible thinning layer fits the wire harness insulation section, and then gradually contacts the wire harness sheathing section and squeezes and combs it.

[0039] Example 3: Please refer to Figure 6-Figure 7 The present invention provides a technical solution: an auxiliary crimping device for wiring harness terminals, wherein the crimping assembly 5 includes an upper die 51 and a lower die 52 slidably arranged on a working frame 31, and the working frame 31 is provided with a lifting member 6 connected to the upper die 51 and the lower die 52; the lifting member 6 includes two bidirectional screw rods 61 respectively rotatably arranged on both sides of the working frame 31, the upper die 51 and the lower die 52 are respectively threadedly connected to both sides of the bidirectional screw rod 61, and the top of the bidirectional screw rod 61 is provided with a driving shaft 62, and the two The driving shafts 62 are connected by a belt drive, and a driving motor 63 is provided on the work frame 31, and the driving motor 63 is connected to any driving shaft 62; the upper mold 51 and the lower mold 52 can press the insulation section and the skin-pulling section of the wire harness at the same time, which is an existing common structure and will not be elaborated here. The bidirectional screw rod 61 can stably drive the upper mold 51 and the lower mold 52 to shift respectively, thereby ensuring effective crimping between the skin-pulling section of the wire rope and the terminal, and forming insulation crimping in the insulation section of the wire harness and conductor crimping in the skin-pulling section of the wire harness.

[0040] Example 4: Please refer to Figure 5 and Figure 12 The present invention provides a technical solution: an auxiliary crimping device for wire harness terminals, wherein the upper mold 51 is provided with a guide baffle 13 near the insulation crimping position of the terminal; two guide baffles 13 are provided, and both have a bent structure. When the upper mold 51 shifts downward, the guide baffle 13 can first contact the insulation crimping part of the terminal and provide a guide limit for it, so that the insulation crimping part of the terminal can smoothly enter the upper mold 51 without being pressed to the outside of the upper mold 51, thereby improving the accuracy of crimping.

[0041] Example 5: Please refer to Figure 6-Figure 7The present invention provides a technical solution: an auxiliary crimping device for wiring harness terminals, wherein a trigger block 14 is provided on one side of the lower die 52, a side bracket 15 is provided on the receiving base plate 1, and two trigger switches 16 are provided on the side bracket 15; the trigger block 14 is provided on the lower die 52 and moves with it, and the two trigger switches 16 are respectively provided at different heights on the side bracket 15, so that the trigger block 14 can realize the triggering work in sequence during the lifting process. Specifically: at the beginning, the first push rod 41 works and stops under the action of the controller. At this time, the upper mounting section 7 and the lower mounting section 8 are in contact with each other, and the combing and pressing of the wire harness peeling section are completed, and the first push rod 41 stops working; when the trigger block 14 contacts the trigger switch 16 located below, the second push rod 43 starts working, driving the two lower mounting sections 8 to shift, and canceling the combing and pressing of the wire harness peeling section. At this time, the terminal has gradually fitted the wire harness section to constrain it; in order to ensure that the terminal can be constrained smoothly, the width of the flexible wire-sparing layer on the lower mounting section 8 is set to be larger than the flexible wire-sparing layer on the upper mounting section 7.

[0042] Example 6: Please refer to Figure 3-Figure 7 The present invention provides a technical solution: an auxiliary crimping device for wiring harness terminals, wherein a fixed frame 17 is provided on one side of the lower die 52, and fixed magnets 18 are provided on the inner walls on both sides of the fixed frame 17, and the trigger block 14 is slidably provided on the fixed frame 17, and movable magnets 19 are provided on the outer walls on both sides of the trigger block 14 to cooperate with adjacent fixed magnets 18 respectively, and two switching top blocks 20 for squeezing the trigger block 14 are staggered at the top and bottom of the side bracket 15; because the trigger block 14 will squeeze the trigger switch 16 during the rising and falling processes, it is necessary to further optimize the circuit of the trigger switch 16, and the specific need will be to ensure that the trigger switch 16 is triggered during the descending stage of the trigger block 14 The switch 16 does not work, which increases the control cost of the trigger switch 16. For this purpose, a switching top block 20 is designed to switch the position of the trigger block 14. When the trigger block 14 rises, it can squeeze the trigger switch 16 normally and make the trigger switch 16 work. When the trigger block 14 rises to the top, the switching top block 20 at the top squeezes the trigger block 14 and makes it slide to the other side in the fixed frame 17. Therefore, the trigger block 14 will not squeeze the trigger switch 16 during the descent process. When the trigger block 14 descends to the bottom, the switching top block 20 at the bottom squeezes the trigger block 14 and makes it slide back to its original position in the fixed frame 17. During the process, the fixed magnet 18 and the movable magnet 19 provide locking positioning.

[0043] Example 7: Please refer to Figure 3-Figure 5 and Figure 13The present invention provides a technical solution: an auxiliary crimping device for wire harness terminals, wherein the support bent plate 10 is installed on the pressing plate 9 by bolts, and the support bent plate 10 is at different distances from the initial position of the wire harness, and the shape of the flexible combing layer 12 is different; in this way, the peeling section of the wire harness can be pre-processed so that it can be pre-formed into the shape desired for crimping, thereby improving the crimping effect.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A wiring harness terminal auxiliary crimping device, comprising a receiving base plate (1) and a wiring harness and a terminal arranged on the receiving base plate (1), characterized in that: The receiving base plate (1) is provided with a mounting tube (2) sleeved on the outside of the wiring harness, and the receiving base plate (1) is provided with a combing-type crimping mechanism (3), the diameter of the mounting tube (2) close to the terminal is larger than the diameter of the side close to the wiring harness, the mounting tube (2) is composed of an upper mounting section (7) and a lower mounting section (8), the combing-type crimping mechanism (3) includes a working frame (31) provided on the receiving base plate (1), the working frame (31) is provided with a crimping assembly (5), the receiving base plate (1) is provided with a combined combing assembly (4) matched with the upper mounting section (7) and the lower mounting section (8), and the upper mounting section (7) and the lower mounting section (8) are both provided with a pressing plate (9) on the side away from the terminal by bolts. ), a plurality of support bent plates (10) are provided on the pressing plate (9), a compression spring (11) is provided on the support bent plates (10), and a flexible combing line layer (12) is provided at the end of the compression spring (11), and the combined combing line assembly (4) comprises two first push rods (41) respectively arranged on both sides of the receiving bottom plate (1), a connecting frame (42) is provided at the end of the first push rod (41), a second push rod (43) is provided on the connecting frame (42), both sides of the upper mounting section (7) are respectively arranged on the connecting frame (42), and both sides of the lower mounting section (8) are respectively arranged at the ends of the two second push rods (43), and both sides of the lower mounting section (8) are respectively slidably arranged on the connecting frame (42).

2. The auxiliary crimping device for wiring harness terminals according to claim 1, characterized in that: The crimping assembly (5) comprises an upper die (51) and a lower die (52) slidably arranged on a working frame (31), and a lifting member (6) connected to the upper die (51) and the lower die (52) is arranged on the working frame (31).

3. The auxiliary crimping device for wiring harness terminals according to claim 2, characterized in that: The lifting member (6) includes two bidirectional screw rods (61) rotatably arranged on both sides of the working frame (31), the upper mold (51) and the lower mold (52) are respectively threadedly connected to both sides of the bidirectional screw rod (61), and a driving shaft (62) is provided on the top of each bidirectional screw rod (61). The two driving shafts (62) are connected via a belt transmission. A driving motor (63) is provided on the working frame (31), and the driving motor (63) is connected to any one of the driving shafts (62).

4. The auxiliary crimping device for wiring harness terminals according to claim 3, characterized in that: The upper die (51) is provided with a guide baffle (13) at an insulation crimping position close to the terminal.

5. The auxiliary crimping device for wiring harness terminals according to claim 4, characterized in that: A trigger block (14) is provided on one side of the lower mold (52), a side bracket (15) is provided on the receiving bottom plate (1), and two trigger switches (16) are provided on the side bracket (15).

6. The auxiliary crimping device for wiring harness terminals according to claim 5, characterized in that: A fixed frame (17) is provided on one side of the lower mold (52), and fixed magnets (18) are provided on the inner walls of both sides of the fixed frame (17). The trigger block (14) is slidably provided on the fixed frame (17), and movable magnets (19) are provided on the outer walls of both sides of the trigger block (14) for respectively cooperating with adjacent fixed magnets (18). Two switching top blocks (20) for squeezing the trigger block (14) are staggered at the top and bottom of the side bracket (15).

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