Automobile low-voltage wire harness processing tool

Abstract

The invention relates to the technical field of wire harness connection, and discloses an automobile low-voltage wire harness processing tool which comprises a base, a carrying frame is fixedly installed at the rear portion of the top end of the base, a crimping mechanism used for crimping a wire harness and an end is arranged at the bottom of a frame body at the top end of the carrying frame, and the crimping mechanism comprises an upper die used for crimping the wire harness and the end. The cylinder is used for driving the upper die to press downwards, the lower die is used for being matched with the upper die to complete die assembly pressing connection, a re-pressing mechanism used for repeatedly pressing a wire harness and an end is arranged in the pressing connection mechanism, and a triggering mechanism used for triggering the re-pressing mechanism to repeatedly press the wire harness and the end is arranged on one side of the pressing connection mechanism. And the problem that the end is easy to rebound due to single-time crimping and the connection between the end and the wire harness is not tight is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wiring harness connection, and more specifically, to a tool for processing low-voltage wiring harnesses for automobiles. Background Art

[0002] The automotive low-voltage wire harness processing tool is a common equipment for processing automotive wire harnesses. It is used to connect automotive wire harnesses and terminals. It can crimp the terminals onto the wire harnesses so that the terminals hold the wire harnesses tightly and improve the connection stability between the terminals and the wire harnesses.

[0003] A patent application with publication number CN117791261A discloses a low-voltage wiring harness processing tool for automobiles, including a workbench, a foot plate, a back plate, a cover plate, and a side guard plate. A crimping mechanism is fixedly installed on the bottom end surface of the cover plate, and a crimping table is installed on the top of the workbench. The crimping table includes a fixed assembly plate and a cross plate. A rotating plate is rotatably installed at the top center of the cross plate. The crimping mechanism includes a first horizontal adjustment mechanism and a second horizontal adjustment mechanism. A lifting mechanism is installed at the bottom of the second horizontal adjustment mechanism. A crimping die is fixedly installed at the bottom end of the lifting mechanism, and a camera is also installed on one side of the crimping die. By setting a rotating plate and installing clamps at both ends of the rotating plate, the two clamps can be moved back and forth to the bottom of the crimping die, and the alternating movement of the two clamps can realize uninterrupted feeding crimping, and there is no need to stop the work of the press die in the middle, which greatly improves the processing efficiency of automobile wiring harnesses.

[0004] However, the above technical solution still has shortcomings. Although the above technical solution can improve the processing efficiency of automotive wiring harnesses, the processing is completed only through a single crimping. After the end head hugs the wiring harness, the clamped part of the end head is prone to rebound, resulting in unstable connection between the end head and the wiring harness after crimping.

[0005] To this end, the present invention provides a tool for processing a low-voltage wiring harness for an automobile. Summary of the invention

[0006] The present invention provides a low-voltage wiring harness processing tool for automobiles, which solves at least one technical problem raised in the background technology.

[0007] An automotive low-voltage wire harness processing tool according to an embodiment of the present invention comprises a base, a carrying frame is fixedly mounted at the rear of the top end of the base, a crimping mechanism for crimping wire harnesses and terminal ends is arranged at the bottom of the top frame of the carrying frame, the crimping mechanism comprises an upper mold for crimping wire harnesses and terminal ends, a cylinder for driving the upper mold to press downward, and a lower mold for cooperating with the upper mold to complete mold closing and crimping, a re-pressing mechanism for repeatedly crimping wire harnesses and terminal ends is arranged inside the crimping mechanism, and a trigger mechanism for triggering the re-pressing mechanism to repeatedly crimp wire harnesses and terminal ends is arranged on one side of the crimping mechanism.

[0008] Specifically, to prevent the rear end of a single crimping from rebounding and causing the connection between the wire harness and the end to loosen, the re-pressing mechanism stops vibrating up and down when the upper mold and the lower mold complete the mold closing.

[0009] Preferably, an adapter seat for connecting the cylinder and the upper mold is fixedly installed between the bottom of the piston rod of the cylinder and the top of the upper mold, and the adapter seat is slidably connected to the mounting frame. The lower mold is located directly below the upper mold and fixedly connected to the base. A crimping groove for placing the wire harness and the terminal is opened through the top surface of the lower mold.

[0010] Specifically, ensure the stability of the transfer seat and the upper mold during the downward movement.

[0011] Preferably, the re-pressing mechanism is located at the bottom of the upper mold, and the re-pressing mechanism includes a crimping piece for crimping the connection between the wire harness and the end head. A limiting slide bar is fixedly installed in the center of the top of the crimping piece to improve the up and down vibration stability of the crimping piece. Springs are fixedly installed at the four corners of the top of the crimping piece to drive the crimping piece to reset.

[0012] Specifically, avoid springback of the terminal after a single crimping.

[0013] Preferably, the crimping mechanism also includes four storage grooves fixedly connected to the top of the crimping part near the four corners for accommodating the expansion and contraction of the spring. The top of the spring is fixedly connected to the upper mold, and a limiting slide groove is fixedly connected to the center of the top of the crimping part for limiting the limiting slide rod and improving the stability of the limiting slide rod sliding up and down.

[0014] Specifically, the stability of the crimping part during the up and down vibration process is improved to prevent the spring from being broken due to excessive pressure.

[0015] Preferably, the front part of the crimping mechanism is provided with a discharge mechanism for clamping the wire harness and terminal that have been crimped, and the front part of the discharge mechanism is provided with a wire fixing mechanism for preventing the wire harness from bending during the crimping process.

[0016] Specifically, the wire harness is prevented from bending during the crimping process. When the wire harness is not suitable for bending, such as an optical fiber, a dead point will appear after the optical fiber is bent, which may easily cause the optical fiber to break or damage the internal structure of the optical fiber.

[0017] Preferably, the unloading mechanism includes a connecting piece for connecting the upper mold, and the bottom of the connecting piece is movably connected to two unloading clamps for clamping the wiring harness, and a slot for accommodating the wiring harness is provided at the bottom through the front and rear ends of the unloading clamps. The two unloading clamps are movably connected by a rotating shaft, and the outer ring of the rotating shaft is equipped with a torsion spring for driving the two unloading clamps to close.

[0018] Specifically, it is convenient to clamp the wire harness.

[0019] Preferably, the unloading mechanism also includes an unloading stop rod for assisting the wire harness to detach from the unloading clamp, the unloading stop rod is located below the unloading clamp, and both ends of the unloading stop rod are fixedly connected to the mounting frame.

[0020] Specifically, the unloading clamp is forced to open, and the wire harness is separated from the unloading clamp to complete unloading.

[0021] Preferably, the wire fixing mechanism includes a telescopic rod fixedly connected to the connecting piece, a movable clamp for fixing the wiring harness is fixedly installed at the bottom end of the movable rod of the telescopic rod, a fixed clamp fixedly connected to the base and used to cooperate with the movable clamp to clamp and fix the wiring harness is provided directly below the movable clamp, and an anti-slip sleeve for increasing friction and preventing the wiring harness from detaching from the movable clamp and the fixed clamp is fixedly installed in the center of the bottom surface of the movable clamp and the center of the top surface of the fixed clamp.

[0022] Specifically, it is to prevent the position of the wire harness from being offset during the crimping process of the wire harness and the terminal, causing the wire harness to bend, forming a dead point, and causing the components inside the wire harness to be damaged.

[0023] Preferably, the trigger mechanism includes a bracket fixedly connected to one side of the upper mold, a trigger plate fixedly connected to one side of the crimping part, an impeller for driving the trigger plate to operate is movably installed between the front and rear end frames of the bracket, gears for driving the impeller to rotate are fixedly connected to both ends of the impeller shaft, a linkage rod is provided on one side of the gear, and a tooth groove for driving the gear to rotate is provided on the side of the linkage rod in contact with the gear.

[0024] Specifically, the connection between the terminal and the wire harness is subjected to multiple crimping processes.

[0025] Preferably, the trigger mechanism also includes two limit cards fixedly connected to one side of the top surface of the lower mold, which penetrate the limit slot set in the middle of the linkage rod, and the limit card is slidably connected to the limit slot, a hook rod slidably connected to the lower mold and fixedly connected to the bottom of the linkage rod for assisting the wiring harness to disengage from the crimping slot, and a lifting plate fixedly connected to the front and rear ends of the bracket for driving the linkage rod to rise.

[0026] Specifically, it is convenient for the wire harness to be separated from the crimping groove after the crimping is completed.

[0027] The beneficial effects of the present invention are as follows: the automotive low-voltage wire harness processing tooling described in the present invention drives the upper mold to rise and fall by setting a cylinder, and the lifting of the upper mold drives the trigger mechanism to rise and fall synchronously. During the descending process of the gear in the trigger mechanism, the gear rotates due to the existence of the tooth groove, thereby driving the impeller to rotate. When one of the blades of the impeller passes the position of the trigger plate, the trigger plate is pushed up from the bottom to the top, thereby driving the crimping part to move upward, and the spring is compressed. When one of the blades of the impeller passes the position of the trigger plate, the spring drives the crimping part to move downward and reset. While the crimping part moves downward, it squeezes the connection between the terminal and the wiring harness. This cycle is repeated, and the connection between the terminal and the wiring harness is crimped multiple times to avoid the terminal from rebounding after the wiring harness and the terminal are crimped once, thereby affecting the stability of the wiring harness and the terminal after connection.

[0028] The automotive low-voltage wire harness processing tool described in the present invention drives the upper mold to rise and fall by arranging a cylinder, and the lifting of the upper mold drives the unloading mechanism to rise and fall synchronously. During the descent of the unloading mechanism, when the unloading clamp is blocked by the wire harness and opens, the wire harness is clamped into the clamping groove, and then the torsion spring drives the unloading clamp to close and clamp the wire harness. When the unloading mechanism rises, the wire harness is driven to rise synchronously. During the rising process of the unloading mechanism, the unloading mechanism passes through the unloading groove, and the wire harness is blocked by the unloading rod. The unloading clamp opens again due to the resistance of the wire harness, and the crimped wire harness is separated from the unloading clamp, so that the crimped wire harness is separated from the lower mold, and the crimped wire harness is automatically unloaded.

[0029] The automotive low-voltage wire harness processing tool described in the present invention drives the upper mold to rise and fall by setting a cylinder, and the lifting of the upper mold drives the trigger mechanism to rise and fall synchronously. During the rising process of the trigger mechanism, the lifting plate in the trigger mechanism rises synchronously. When the lifting plate contacts the linkage rod, it drives the linkage rod to rise synchronously, and then drives the hook rod at the bottom of the linkage rod to rise synchronously. The wire harness in the crimping groove is pushed out by the hook rod, which is convenient for the wire harness to be separated from the crimping groove after the crimping is completed. The unloading mechanism clamps the wire harness, which helps to reduce the influence of friction on the wire harness and the terminal, and avoids the wire harness and the terminal being bent due to the influence of friction, forming a dead point, and causing damage to the components inside the wire harness.

[0030] The automotive low-voltage wire harness processing tool described in the present invention drives the upper mold to rise and fall by arranging a cylinder, and the lifting and lowering of the upper mold drives the telescopic rod and the movable clamp in the wire fixing mechanism to rise and fall synchronously. When the movable clamp and the fixed clamp are closed, the wire harness is clamped and fixed in cooperation with the anti-slip sleeve, and at the same time the unloading mechanism moves downward, and the unloading clamp presses down the wire harness. At this time, since the two anti-slip sleeves clamp the wire harness, it can be prevented from being separated from the end due to the downward force during the crimping process, and at the same time, the wire harness can be prevented from being bent due to the downward force, resulting in a folding dead point and causing structural damage inside the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of a local structure in the present invention;

[0033] Figure 3 This is a bottom-up view of the crimping mechanism of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the unloading mechanism in the present invention;

[0035] Figure 5 It is a structural schematic diagram of the wire fixing mechanism in the present invention;

[0036] Figure 6 It is a structural schematic diagram of the vibration mechanism in the present invention;

[0037] Figure 7 It is a bottom-up perspective view of the crimping mechanism, the triggering mechanism and the re-pressing mechanism in the present invention;

[0038] Figure 8 It is a structural schematic diagram of the re-pressing mechanism in the present invention;

[0039] Fig. 9 The present invention Figure 8 A magnified view of area A in;

[0040] Fig.10 The present invention Figure 8 A magnified view of area B in FIG.

[0041] Fig.11 It is a cross-sectional view of the upper mold and the lower mold in the present invention.

[0042] In the figure: 1. base; 2. carrier; 3. crimping mechanism; 31. cylinder; 32. adapter; 33. upper mold; 34. lower mold; 35. limit slide; 36. storage slot; 37. crimping slot; 4. unloading mechanism; 41. connector; 42. unloading clamp; 43. torsion spring; 44. card slot; 45. unloading stop rod; 5. wire fixing mechanism; 51. telescopic rod; 52. movable splint; 53. fixed splint; 54. anti-slip sleeve; 6. trigger mechanism; 61. bracket; 62. impeller; 63. gear; 64. linkage rod; 65. tooth groove; 66. limit slot; 67. limit card; 68. hook rod; 69. trigger plate; 610. lifting plate; 7. re-pressing mechanism; 71. crimping member; 72. limit slide; 73. spring. DETAILED DESCRIPTION

[0043] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace or add various processes or mechanisms as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0044] Example

[0045] like Figures 1 to 11 As shown, an automotive low-voltage wiring harness processing tooling according to an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 , including a base 1, a carrying frame 2 is fixedly installed at the top rear of the base 1, a crimping mechanism 3 for crimping wire harnesses and terminals is arranged at the bottom of the top frame of the carrying frame 2, the crimping mechanism 3 includes an upper mold 33 for crimping wire harnesses and terminals, a cylinder 31 for driving the upper mold 33 to press down, and a lower mold 34 for cooperating with the upper mold 33 to complete mold closing and crimping, a re-pressing mechanism 7 for repeatedly crimping wire harnesses and terminals is arranged inside the crimping mechanism 3, and a trigger mechanism 6 for triggering the re-pressing mechanism 7 to repeatedly crimp the wire harnesses and terminals is arranged on one side of the crimping mechanism 3.

[0046] Specifically, the wire harness and the terminal are placed on the lower mold 34 in the crimping mechanism 3, and the cylinder 31 is started to drive the upper mold 33 to move downward. While the upper mold 33 moves downward, it drives the trigger mechanism 6 to operate, and the trigger mechanism 6 triggers the re-pressing mechanism 7 to vibrate up and down. The wire harness and the terminal are crimped multiple times through the up and down vibration, thereby improving the tightness between the wire harness and the terminal after crimping, preventing the terminal from rebounding after a single crimping, resulting in loose connection between the wire harness and the terminal. When the upper mold 33 and the lower mold 34 are completed, the re-pressing mechanism 7 stops vibrating up and down.

[0047] Please refer to Figure 3 , Fig.11 An adapter seat 32 for connecting the cylinder 31 and the upper mold 33 is fixedly installed between the bottom of the piston rod of the cylinder 31 and the top of the upper mold 33, and the adapter seat 32 is slidably connected to the mounting frame 2. The lower mold 34 is located directly below the upper mold 33 and is fixedly connected to the base 1. A crimping groove 37 for placing the wire harness and the terminal is opened through the top surface of the lower mold 34.

[0048] Specifically, when the wire harness and the terminal are crimped, the wire harness and the terminal are placed in the crimping groove 37. After the cylinder 31 is started, it drives the adapter seat 32 to move downward, and the movement of the adapter seat 32 drives the upper mold 33 to move downward. The sliding connection between the adapter seat 32 and the mounting frame 2 ensures the stability of the adapter seat 32 and the upper mold 33 during the downward movement.

[0049] Please refer to Figure 6 , Figure 7 , Fig.11 The re-pressing mechanism 7 is located at the bottom of the upper mold 33. The re-pressing mechanism 7 includes a crimping piece 71 for crimping the connection between the wire harness and the end. A limiting slide bar 72 is fixedly installed in the center of the top of the crimping piece 71 to improve the up and down vibration stability of the crimping piece 71. Springs 73 for driving the crimping piece 71 to return to their original position are fixedly installed at the four corners of the top of the crimping piece 71.

[0050] Specifically, pressure is applied to the connection between the wire harness and the terminal by the crimping piece 71 to perform crimping. During the crimping process, the crimping piece 71 is reset by the spring 73. The crimping piece 71 vibrates up and down to repeatedly crimp the connection between the wire harness and the terminal to prevent the terminal from rebounding after a single crimping.

[0051] Please refer to Figure 7 , Fig.11 The crimping mechanism 3 also includes four receiving grooves 36 fixedly connected to the top of the crimping part 71 near the four corners for accommodating the expansion and contraction of the spring 73. The top of the spring 73 is fixedly connected to the upper mold 33, and a limiting slide groove 35 is fixedly connected to the center of the top of the crimping part 71 for limiting the limiting slide rod 72 and improving the stability of the limiting slide rod 72 sliding up and down.

[0052] Specifically, during the up and down vibration of the crimping part 71, the limiting slide rod 72 is limited by the limiting slide groove 35 to prevent the crimping part 71 from swinging in directions other than the up and down directions during the vibration, thereby improving the stability of the crimping part 71 during the up and down vibration. At the same time, the storage groove 36 is used to store the compressed spring 73 to prevent the spring 73 from being broken due to excessive pressure.

[0053] Please refer to Figure 1 , Figure 2 The front part of the crimping mechanism 3 is provided with a discharge mechanism 4 for clamping the wire harness and the terminal that have been crimped, and the front part of the discharge mechanism 4 is provided with a wire fixing mechanism 5 for preventing the wire harness from bending during the crimping process.

[0054] Specifically, the crimped wire harness and terminal are taken out from the crimping groove 37 by the unloading mechanism 4, and the wire harness is clamped and fixed by the wire fixing mechanism 5 to prevent the wire harness from bending and forming a dead point during the crimping process, which may damage the internal structure of the wire harness.

[0055] Please refer to Figure 1 , Figure 2 , Figure 4 The unloading mechanism 4 includes a connecting piece 41 for connecting the upper mold 33. The bottom of the connecting piece 41 is movably connected to two unloading clamps 42 for clamping the wire harness. A slot 44 for accommodating the wire harness is provided at the bottom of the front and rear ends of the unloading clamps 42. The two unloading clamps 42 are movably connected through a rotating shaft. The outer ring of the rotating shaft is equipped with a torsion spring 43 for driving the two unloading clamps 42 to close.

[0056] Specifically, during the process of pressing down the upper mold 33, the unloading mechanism 4 descends synchronously, and after the unloading clamp 42 contacts the wire harness, it is blocked by the wire harness and opens. When the slot 44 moves to the position where the wire harness is located, the wire harness is stuck in the slot 44, and the torsion spring 43 drives the opened unloading clamp 42 to close and clamp the wire harness, making it easier to clamp the wire harness.

[0057] Please refer to Figure 1 , Figure 2 , Figure 4 The unloading mechanism 4 also includes an unloading stopper rod 45 for assisting the wire harness to escape from the unloading clamp 42 . The unloading stopper rod 45 is located below the unloading clamp 42 , and both ends of the unloading stopper rod 45 are fixedly connected to the mounting frame 2 .

[0058] Specifically, during the rising process of the upper mold 33, the unloading mechanism 4 is driven to rise synchronously, and the wire harness clamped by the unloading clamp 42 rises synchronously with the unloading mechanism 4. When the wire harness contacts the unloading stop rod 45, the wire harness is blocked by the unloading stop rod 45 and exerts pressure on the unloading clamp 42, forcing the unloading clamp 42 to open, and the wire harness is separated from the unloading clamp 42 to complete the unloading.

[0059] Please refer to Figure 1 , Figure 2 , Figure 5 The wire fixing mechanism 5 includes a telescopic rod 51 fixedly connected to the connecting piece 41, and a movable clamping plate 52 for fixing the wire harness is fixedly installed at the bottom end of the movable rod of the telescopic rod 51. A fixed clamping plate 53 fixedly connected to the base 1 and used to cooperate with the movable clamping plate 52 to clamp and fix the wire harness is arranged directly below the movable clamping plate 52. An anti-slip cover 54 for increasing friction and preventing the wire harness from detaching from the movable clamping plate 52 and the fixed clamping plate 53 is fixedly installed in the center of the bottom surface of the movable clamping plate 52 and the center of the top surface of the fixed clamping plate 53.

[0060] Specifically, during the downward movement of the unloading mechanism 4, the wire fixing mechanism 5 descends synchronously. When the movable clamp 52 and the fixed clamp 53 are closed, the wire harness is clamped and fixed in cooperation with the anti-slip sleeve 54 to prevent the position of the wire harness from shifting during the crimping process of the wire harness and the terminal, causing the wire harness to bend and form a dead point, thereby causing damage to the components inside the wire harness.

[0061] Please refer to Figure 2, Figure 6 , Figure 8 The trigger mechanism 6 includes a bracket 61 fixedly connected to one side of the upper mold 33, a trigger plate 69 fixedly connected to one side of the crimping piece 71, an impeller 62 for driving the trigger plate 69 to operate is movably installed between the front and rear end frames of the bracket 61, and gears 63 for driving the impeller 62 to rotate are fixedly connected to both ends of the shaft of the impeller 62. A linkage rod 64 is provided on one side of the gear 63, and a tooth groove 65 for driving the gear 63 to rotate is provided on the side of the linkage rod 64 that contacts the gear 63.

[0062] Specifically, in the process of the upper mold 33 moving downward, the bracket 61, the impeller 62 and the gear 63 are driven to descend synchronously. In the process of the gear 63 descending, it rotates due to the meshing connection with the tooth groove 65, thereby driving the impeller 62 to rotate. The trigger plate 69 is pushed up from the bottom to the top through the rotation of the impeller 62. When the trigger plate 69 is pushed up, the crimping piece 71 is driven to move upward, and the spring 73 is compressed. When one of the blades of the impeller 62 passes the position of the trigger plate 69, the restoring force of the spring 73 drives the crimping piece 71 to move downward and reset. When the crimping piece 71 moves downward, it squeezes the connection between the terminal and the wiring harness. This cycle is repeated, and the connection between the terminal and the wiring harness is crimped multiple times.

[0063] Please refer to Figure 8 , Fig. 9 , Fig.10 , Fig.11 The trigger mechanism 6 also includes two limit cards 67 fixedly connected to one side of the top surface of the lower mold 34, which penetrate the limit slot 66 set in the middle of the linkage rod 64, and the limit card 67 is slidably connected to the limit slot 66, and a hook rod 68 slidably connected to the lower mold 34 and fixedly connected to the bottom of the linkage rod 64 for assisting the wire harness to disengage from the crimping slot 37, and a lifting plate 610 fixedly connected to the front and rear ends of the bracket 61 for driving the linkage rod 64 to rise.

[0064] Specifically, in the process of the upper mold 33 moving upward, the bracket 61 and the lifting plate 610 are driven to rise synchronously. When the lifting plate 610 contacts the linkage rod 64, it drives the linkage rod 64 to rise synchronously, and then drives the hook rod 68 at the bottom of the linkage rod 64 to rise synchronously, and the wire harness in the crimping groove 37 is pushed out by the hook rod 68, so that the wire harness can be separated from the crimping groove 37 after the crimping is completed.

[0065] How it works

[0066] When processing the wire harness, the wire harness and the terminal are placed in the crimping groove 37 at the top of the lower mold 34, and the cylinder 31 in the crimping mechanism 3 is started to drive the adapter 32 and the upper mold 33 to descend synchronously, thereby driving the unloading mechanism 4, the wire fixing mechanism 5, the trigger mechanism 6 and the re-pressing mechanism 7 to descend synchronously; during the descent of the gear 63 in the trigger mechanism 6, it rotates due to the existence of the tooth groove 65, thereby driving the impeller 62 to rotate, and when one of the blades of the impeller 62 passes the position of the trigger plate 69, the trigger plate 69 is pushed up from the bottom to proceed. The spring 73 is compressed and the crimping piece 71 is driven to move upward. When one of the blades of the impeller 62 passes the position of the trigger plate 69, the spring 73 drives the crimping piece 71 to move downward and reset. The crimping piece 71 moves downward and squeezes the connection between the terminal and the wiring harness. This cycle is repeated to perform multiple crimping processes on the connection between the terminal and the wiring harness. During the descent of the wire fixing mechanism 5, the movable clamping plate 52 and the fixed clamping plate 53 are closed, and the wire harness is clamped and fixed with the anti-slip sleeve 54; during the descent of the unloading mechanism 4, the unloading clamp 42 is opened. The upper mold 33 and the lower mold 34 are closed, and the crimping piece 71 presses the connection between the wire harness and the terminal. After the crimping is completed, the cylinder 31 starts to drive the upper mold 33, the unloading mechanism 4, the wire fixing mechanism 5, the trigger mechanism 6 and the re-pressing mechanism 7 to rise synchronously; when the bracket 61 rises, the lifting plate 610 is driven to rise synchronously. When the lifting plate 610 contacts the linkage rod 64, the linkage rod 64 is driven to rise synchronously, and then the hook rod 68 at the bottom of the linkage rod 64 is driven to rise synchronously, and the wire harness in the crimping groove 37 is ejected by the hook rod 68, which is convenient for After crimping is completed, the wire harness is disengaged from the crimping groove 37; during the rising process of the unloading mechanism 4, when the unloading clamp 42 passes through the middle of the unloading stop rod 45, the wire harness is blocked by the unloading stop rod 45 and disengaged from the unloading clamp 42, completing the unloading process. The unloading clamp 42 in the unloading mechanism 4 cooperates with the hook rod 68 in the trigger mechanism 6 to facilitate the removal of the wire harness and the terminal after crimping, which helps to reduce the influence of friction on the wire harness and the terminal, and avoids the wire harness and the terminal being bent due to the influence of friction, forming a dead point, and causing damage to the components inside the wire harness.

[0067] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A tool for processing low-voltage wiring harnesses for automobiles, comprising a base (1), a mounting frame (2) being fixedly mounted at the rear end of the top end of the base (1), characterized in that: A crimping mechanism (3) for crimping the wire harness and the terminal is arranged at the bottom of the top frame of the mounting frame (2), and the crimping mechanism (3) comprises an upper mold (33) for crimping the wire harness and the terminal, a cylinder (31) for driving the upper mold (33) to press downward, and a lower mold (34) for cooperating with the upper mold (33) to complete mold closing and crimping. A re-pressing mechanism (7) for repeatedly crimping the wire harness and the terminal is arranged inside the crimping mechanism (3), and a trigger mechanism (6) for triggering the re-pressing mechanism (7) to repeatedly crimp the wire harness and the terminal is arranged on one side of the crimping mechanism (3).

2. The automotive low-voltage wiring harness processing tool according to claim 1, characterized in that: A transfer seat (32) for connecting the cylinder (31) and the upper mold (33) is fixedly installed between the bottom of the piston rod of the cylinder (31) and the top of the upper mold (33), and the transfer seat (32) is slidably connected to the mounting frame (2). The lower mold (34) is located directly below the upper mold (33) and is fixedly connected to the base (1). A crimping groove (37) for placing a wire harness and a terminal is provided on the top surface of the lower mold (34).

3. The automotive low-voltage wiring harness processing tool according to claim 1, characterized in that: The re-pressing mechanism (7) is located at the bottom of the upper mold (33), and comprises a crimping piece (71) for crimping the connection between the wire harness and the terminal, a limiting slide bar (72) is fixedly installed in the center of the top of the crimping piece (71) to improve the up and down vibration stability of the crimping piece (71), and springs (73) are fixedly installed at the top of the crimping piece (71) near the four corners to drive the crimping piece (71) to return.

4. The automotive low-voltage wiring harness processing tool according to claim 3 is characterized in that: The crimping mechanism (3) further comprises four receiving grooves (36) fixedly connected to the top of the crimping member (71) near four corners for accommodating the expansion and contraction of the spring (73); the top of the spring (73) is fixedly connected to the upper mold (33); and a limiting slide groove (35) fixedly connected to the center of the top of the crimping member (71) for limiting the limiting slide rod (72) and improving the stability of the limiting slide rod (72) sliding up and down.

5. The automotive low-voltage wire harness processing tool according to claim 1, characterized in that: The front part of the crimping mechanism (3) is provided with a discharge mechanism (4) for clamping the crimped wire harness and terminal, and the front part of the discharge mechanism (4) is provided with a wire fixing mechanism (5) for preventing the wire harness from bending during the crimping process.

6. The automotive low-voltage wire harness processing tool according to claim 5, characterized in that: The unloading mechanism (4) comprises a connecting piece (41) for connecting to the upper mold (33); the bottom of the connecting piece (41) is movably connected to two unloading clamps (42) for clamping the wire harness; a clamping groove (44) for accommodating the wire harness is provided at the bottom of the front and rear ends of the unloading clamps (42); the two unloading clamps (42) are movably connected via a rotating shaft; the outer ring of the rotating shaft is provided with a torsion spring (43) for driving the two unloading clamps (42) to close.

7. The automotive low-voltage wire harness processing tool according to claim 6, characterized in that: The unloading mechanism (4) also includes an unloading stopper rod (45) for assisting the wire harness to be separated from the unloading clamp (42); the unloading stopper rod (45) is located below the unloading clamp (42), and both ends of the unloading stopper rod (45) are fixedly connected to the mounting frame (2).

8. The automotive low-voltage wire harness processing tool according to claim 6, characterized in that: The wire fixing mechanism (5) comprises a telescopic rod (51) fixedly connected to the connecting member (41); a movable clamping plate (52) for fixing the wire harness is fixedly installed at the bottom end of the movable rod of the telescopic rod (51); a fixed clamping plate (53) fixedly connected to the base (1) and used to cooperate with the movable clamping plate (52) to clamp and fix the wire harness is arranged directly below the movable clamping plate (52); and an anti-slip sleeve (54) for increasing friction and preventing the wire harness from being separated from between the movable clamping plate (52) and the fixed clamping plate (53) is fixedly installed in the center of the bottom surface of the movable clamping plate (52) and the center of the top surface of the fixed clamping plate (53).

9. The automotive low-voltage wire harness processing tool according to claim 3, characterized in that: The trigger mechanism (6) comprises a bracket (61) fixedly connected to one side of the upper mold (33), a trigger plate (69) fixedly connected to one side of the crimping piece (71), an impeller (62) for driving the trigger plate (69) to operate is movably installed between the front and rear end frames of the bracket (61), a gear (63) for driving the impeller (62) to rotate is fixedly connected to both ends of the shaft of the impeller (62), a linkage rod (64) is provided on one side of the gear (63), and a tooth groove (65) for driving the gear (63) to rotate is provided on the side of the linkage rod (64) that contacts the gear (63).

10. The automotive low-voltage wire harness processing tool according to claim 9, characterized in that: The trigger mechanism (6) also includes two limit cards (67) fixedly connected to one side of the top surface of the lower mold (34), penetrating a limit slot (66) arranged in the middle of the linkage rod (64), and the limit card (67) is slidably connected to the limit slot (66), a hook rod (68) slidably connected to the lower mold (34) and fixedly connected to the bottom of the linkage rod (64) for assisting the wire harness to disengage from the crimping slot (37), and a lifting plate (610) fixedly connected to the front and rear ends of the bracket (61) for driving the linkage rod (64) to rise.

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