Wire harness terminal stamping device

Abstract

The present invention relates to the technical field of wire harness terminal processing, and specifically to a wire harness terminal stamping device, the device comprising a crimping table and an extrusion plate, the extrusion plate being arranged above the crimping table and being movable in an up-down direction, and also comprising a wire stripping structure, which is located on one side of the crimping table, the wire stripping structure comprising a placement frame and a cutter assembly, the placement frame having a placement position, and the cutter assembly comprising cutters located on upper and lower sides of the placement position; a pulling structure, which comprises a pull rod, the pull rod having a fixed seat on the side facing the wire stripping structure, a fixed assembly in the fixed seat, and a driving mechanism for driving the pull rod to move horizontally on the side facing away from the fixed seat; a boosting assembly, which comprises an elastic member, the elastic member being connected to the cutter assembly, and the fixed seat and the elastic member having an overlapping portion in the up-down direction. The advantage of the entire scheme is that it reduces the possibility of the wire core being loosely bent in the process of moving with the pulling structure to above the terminal, improves the crimping effect of the wire core and the terminal, and ensures the crimping quality.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness terminal processing, and in particular to a wire harness terminal stamping device. Background Art

[0002] The wire harness terminal stamping process consists of two stages: stamping and crimping. During the stamping stage, the metal strip is fed into the die via a feeding device. The punching machine's slider drives the upper die downward, and the die shears, punches, and bends the material, gradually forming it into a wire harness terminal. During the crimping stage, the wire harness is cut to the appropriate length, and the insulation layer at the front is stripped with a wire stripping tool to expose the wire core. The processed wire core is inserted into the corresponding position of the stamped terminal. A crimping tool (such as a crimping pliers or an automatic crimping machine) applies pressure to the contact area between the terminal and the wire core, deforming the terminal and tightly wrapping the wire core to achieve an electrical connection and mechanical fixation.

[0003] For example, the patent document with the authorization announcement number CN112054364B discloses a wire harness terminal crimping device, which includes a base plate, two symmetrically distributed support columns fixedly connected to the top of one side of the base plate, two support frames symmetrically fixedly connected to the outside of the two support columns on one side of the base plate, a turntable is rotatably connected to the center position of the top of the base plate through a rotating shaft 1, and the top of the turntable is annularly fixedly connected to a crimping seat No. 1, a crimping seat No. 2 and a crimping seat No. 3 at equal angles, and a crimping mechanism is provided on the top of one side of the base plate. The above device is provided with a crimping mechanism at the top of one side of the base plate, and the No. 1 extrusion plate and the No. 2 extrusion plate are rotatably connected through the rotating shaft 2. The wire harness terminal is squeezed between the No. 1 extrusion plate and the No. 2 extrusion plate, and the wire harness terminal is clamped by the mutual rotation between the No. 1 extrusion plate and the No. 2 extrusion plate, thereby improving the working efficiency of the wire harness terminal crimping device.

[0004] However, in practice, the aforementioned device still has certain drawbacks: Wire cores are typically composed of multiple thin, flexible conductors. After stripping, they lose their insulation and tend to become loose and bend. This makes it difficult to accurately position the wire cores within the terminal, which in turn affects the quality of the crimping. Directly inserting these loose, bent wire cores into the aforementioned device for crimping can result in loose connections and poor contact. Manually using pliers to straighten the wire cores before inserting them into the terminal increases wire preparation time, impacting crimping efficiency. Summary of the Invention

[0005] The invention provides a wire harness terminal punching device to solve the technical problem in the prior art that after the wire core is stripped, the insulation layer is lost and the wire core becomes loose and bent, resulting in loose crimping and poor contact.

[0006] In order to solve the above problems, the wiring harness terminal stamping device provided by the present invention adopts the following technical solutions:

[0007] A wire harness terminal stamping device includes a crimping table and a pressing plate. The crimping table is used to place the terminal. The pressing plate is arranged above the crimping table and can be guided and moved in the up and down directions to crimp the terminal and the wire harness from top to bottom after the wire harness is placed on the terminal. The device also includes:

[0008] The wire stripping structure is located on one side of the crimping station. The wire stripping structure includes a placement rack and a cutter assembly. The placement rack has a placement position for the wire harness, and the cutter assembly includes cutters located on the upper and lower sides of the placement position.

[0009] The pulling structure includes a pull rod horizontally arranged on the upper side of the crimping table, the pull rod having a fixed seat on the side facing the wire stripping structure, a fixing assembly for fixing the end of the wire harness in the fixed seat, and a driving mechanism for driving the pull rod to move horizontally on the side facing away from the fixed seat. The pull rod is used to pull the stripped wire harness to the terminal of the crimping table;

[0010] The boosting assembly includes an elastic member connected to the cutter assembly. In the up and down directions, the fixed seat and the elastic member have an overlapping part, so that the elastic member has an extruded state in which the fixed seat is squeezed by the fixed seat during the movement of the pull rod, and a boosting state in which the cutter drives the wire harness sheath to move. The wire harness sheath in the boosting state is used to shape the wire core.

[0011] The beneficial effect of the above technical solution is that the crimping table and the extrusion plate are used for crimping and forming the wire harness and the terminal. Prior to this, by setting the stripping structure, the pulling structure and the boosting assembly, while the stripping structure and the pulling structure work together, the boosting assembly is used to cooperate with the cutter assembly in the stripping structure, so that the cutter assembly can also play a second role after completing the stripping, that is, to horizontally assist the stripping sheath to move toward the pulling structure. While the stripping sheath moves horizontally around the periphery of the wire harness, it actually wraps the wire core in the wire harness to prevent the wire core from collapsing and loosening before reaching the terminal, reducing the possibility of the wire core loosening and bending in the process of moving with the pulling structure to the top of the terminal, improving the crimping effect of the wire core and the terminal, and ensuring the crimping quality.

[0012] Furthermore, the cutter assembly includes a mounting plate, a lifting motor, a lifting screw, a sliding seat, an upper cutting plate and a lower cutting plate; the mounting plate is arranged in a horizontal direction and is fixed on a placement rack, a lifting motor is arranged at the lower end of the mounting plate, two lifting screws arranged in parallel are screwed on the mounting plate through threaded holes, the output end of the lifting motor is connected to one of the lifting screws, gears are fixed on the outer periphery of the two lifting screws, and the two gears are driven by a gear belt, and each lifting screw is equipped with two sliding seats arranged at intervals up and down, the end of the upper cutting plate is slidably installed in the two upper sliding seats, and the end of the lower cutting plate is slidably installed in the two lower sliding seats.

[0013] The beneficial effect of the above technical solution is: on the basis of the elastic part connecting the cutter assembly, a sliding seat is added for the upper cutter plate and the lower cutter plate to slide, which improves the stability of the horizontal movement of the upper cutter plate and the lower cutter plate, and further ensures the stability of the wire harness sheath wrapping the wire core.

[0014] Furthermore, the cutter assembly also includes an auxiliary positioning plate, which includes an upper positioning plate and a lower positioning plate. The upper positioning plate and the lower positioning plate are respectively located on the upper and lower sides of the wire harness, and the end of the upper positioning plate is fixed in the two upper sliding seats, and the end of the lower positioning plate is fixed in the two lower sliding seats. The upper positioning plate and the lower positioning plate are used to move up and down synchronously with the upper cutting plate and the lower cutting plate to assist in clamping the wire harness when the upper cutting plate and the lower cutting plate are stripping the wire.

[0015] The beneficial effect of the above technical solution is that by setting the auxiliary positioning plate, when the upper cutting plate and the lower cutting plate cut the outer skin of the wire harness, the auxiliary positioning plate can hold the wire harness to prevent the wire harness from shifting in the horizontal direction, thereby ensuring the wire stripping effect.

[0016] Furthermore, the upper cutting plate and the lower cutting plate have arc-shaped knife holes on opposite sides, the inner wall of the arc-shaped knife hole has the cutter, and the inner diameter of the arc-shaped knife hole is adapted to the outer diameter of the wire harness.

[0017] The beneficial effect of the above technical solution is that the arc-shaped knife hole can not only cut the outer sheath of the wire harness, but also limit the wire harness to a certain extent, thereby ensuring the wire stripping effect.

[0018] Furthermore, the upper positioning plate and the lower positioning plate each have an arc-shaped hole on one opposite side, and the inner diameter of the arc-shaped hole is adapted to the outer diameter of the wiring harness.

[0019] Furthermore, the sliding seat is a U-shaped rail arranged laterally, and the U-shaped rail is used to place the ends of the upper cutting plate, the lower cutting plate, the upper positioning plate and the lower positioning plate.

[0020] Furthermore, the lower cutting plate is provided with a sleeve extending up and down, and the upper cutting plate is provided with an insertion rod for movably inserting into the sleeve. The sleeve and the insertion rod are guided and cooperated along the up and down directions to improve the movement stability of the upper cutting plate and the lower cutting plate, and to make the upper cutting plate and the lower cutting plate move horizontally synchronously in the boost state.

[0021] The beneficial effect of the above technical solution is that the setting of the sleeve and the insertion rod has two effects at the same time. First, it can improve the movement stability of the upper cutting plate and the lower cutting plate, thereby ensuring the wire stripping effect. Second, it can make the upper cutting plate and the lower cutting plate move horizontally synchronously, so that when the wire harness outer skin is promoted to move, the wire harness outer skin can move more stably.

[0022] Furthermore, the elastic part includes a push plate, a push rod, a baffle, a guide tube and a spring. The guide tube is fixed on the placement rack, the push rod guide is installed in the guide tube, one end of the push rod is connected to the spring through the baffle, and the other end of the push rod is connected to the push plate. The push plate is used to contact the fixed seat, and the other end of the spring is connected to the lower cutting plate.

[0023] The beneficial effect of the above technical solution is that as the power source for the horizontal movement of the upper cutting plate and the lower cutting plate, the stable movement of the elastic member is extremely important. Through the above arrangement, the squeezing of the push plate by the fixed seat can be stably transmitted to the spring, and then to the upper cutting plate and the lower cutting plate, further ensuring the use effect.

[0024] Furthermore, the driving mechanism is a driving motor, and the output end of the driving motor is connected to the pull rod through a belt rotation structure, so that the pull rod can move horizontally and rotate at the same time, so as to rotate and articulate two or more wiring harnesses fixed on the fixing seat.

[0025] Furthermore, the belt rotation structure includes a flat key located at the output end of the driving motor and extending horizontally. The inner periphery of the pull rod has a keyway clamped on the flat key. The crimping table also has a fixed block, which has a threaded hole for the pull rod to pass through. The outer periphery of the pull rod has an external thread, so that the pull rod can move linearly relative to the fixed block while the driving motor drives the pull rod to rotate.

[0026] The beneficial effect of the above technical solution is that: through this arrangement, only one drive motor is needed to achieve the horizontal movement and rotation of the pull rod, thereby reducing the power input cost.

[0027] Furthermore, the fixing seat has through holes for the wiring harness to pass through, and the number of through holes is adapted to the number of wiring harnesses. The fixing assembly includes a top pressure plate arranged on the side of the through hole, and the top pressure plate has a spring on the side facing away from the through hole. The spring is used to push the top pressure plate to clamp the wiring harness in the through hole.

[0028] The beneficial effect of the above technical solution is that the operator lifts the top pressure plate to make space for the wire harness to pass through the through-hole, and when the wire harness is placed in the through-hole, the operator lets go. The top pressure plate clamps the wire harness under the pressure of the spring, thereby fixing the wire harness in the through-hole. The whole process is simple and effective, and can effectively fix the wire harness.

[0029] The beneficial effects of the wiring harness terminal stamping device provided by the present invention are:

[0030] (1) The booster assembly cooperates with the cutter assembly in the stripping structure so that the cutter assembly can play a second role after completing the stripping, that is, to help the stripping sheath move horizontally toward the direction of the pulling structure. While the stripping sheath moves horizontally around the periphery of the wire harness, it actually wraps the wire core in the wire harness, preventing the wire core from collapsing and loosening before reaching the terminal, reducing the possibility of the wire core loosening and bending in the process of moving with the pulling structure to the top of the terminal, improving the crimping effect between the wire core and the terminal, and ensuring the crimping quality;

[0031] (2) The setting of the sleeve and the plug rod has two effects at the same time. First, it can improve the movement stability of the upper cutting plate and the lower cutting plate, thereby ensuring the wire stripping effect. Second, it can make the upper cutting plate and the lower cutting plate move horizontally synchronously, so that when the wire harness outer skin is pushed to move, the wire harness outer skin can move more stably.

[0032] (3) As the power source for the horizontal movement of the upper and lower cutting plates, the stable movement of the elastic member is extremely important. Through the above arrangement, the squeezing of the push plate by the fixed seat can be stably transmitted to the spring, and then to the upper and lower cutting plates, further ensuring the use effect;

[0033] (4) Only one drive motor is needed to achieve horizontal movement and rotation of the pull rod, reducing power input costs;

[0034] (5) When the operator is fixing the end of the wire harness, he can quickly do so by lifting the top pressure plate. When the wire harness is placed in the through hole, he can let go. The top pressure plate clamps the wire harness under the pressure of the spring, thus fixing the wire harness in the through hole. The whole process is simple and effective, and can effectively fix the wire harness.

[0035] Through the above-mentioned arrangement, the present invention adds a stripping structure, a pulling structure and a boosting assembly to the wire harness terminal stamping device, completing the improvement and upgrade of the existing device, and effectively solving the technical problem in the prior art that the wire core loses the insulation layer after stripping and is prone to loosening and bending, resulting in loose crimping and poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is an overall schematic diagram of the wiring harness terminal stamping device provided by the present invention;

[0037] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0038] Figure 3 This is a rear view of the wiring harness terminal stamping device provided by the present invention;

[0039] Figure 4 Schematic diagram of the cooperation between the terminal, the pull rod and the extruded plate in the present invention;

[0040] Figure 5 Schematic diagram of the stripping structure, booster assembly and pull rod in the present invention Figure 1 ;

[0041] Figure 6 Schematic diagram of the stripping structure, booster assembly and pull rod in the present invention Figure 2 ;

[0042] Figure 7 Schematic diagram of the stripping structure, booster assembly and pull rod in the present invention Figure 3 ;

[0043] Figure 8 Schematic diagram of the stripping structure, booster assembly and pull rod in the present invention Figure 4 ;

[0044] Figure 9 Schematic diagram of the cooperation between the driving motor, the pull rod and the fixed block in the present invention;

[0045] Figure 10 Schematic diagram of the cooperation between the output end of the driving motor and the pull rod in the present invention;

[0046] Figure 11 is a cross-sectional view of the tie rod of the present invention;

[0047] Figure 12 This is a schematic diagram of the upper cutting plate and the lower cutting plate in the present invention helping to move the outer skin of the wire harness.

[0048] Description of reference numerals:

[0049] 1. Crimping table; 2. Extrusion plate; 3. Terminal; 4. Placement rack; 5. Pull rod; 6. Fixed seat; 7. Mounting plate; 8. Lifting motor; 9. Lifting screw; 10. Sliding seat; 11. Upper cutting plate; 12. Lower cutting plate; 13. Upper positioning plate; 14. Lower positioning plate; 15. Wire harness; 16. Arc knife hole; 17. Arc hole; 18. Sleeve; 19. Insert rod; 20. Push plate; 21. Push rod; 22. Baffle; 23. Guide tube; 24. Spring; 25. Drive motor; 26. Flat key; 27. Keyway; 28. Fixed block; 29. Gear belt; 30. Outer skin; 31. Wire core. DETAILED DESCRIPTION

[0050] The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0051] Embodiments of the wiring harness terminal stamping device provided by the present invention:

[0052] like Figures 1 to 4As shown, the wire harness terminal stamping device includes a crimping station 1, a pressing plate 2, a wire stripping mechanism, a pulling mechanism, and a booster assembly. The crimping station 1 is used to place the terminal 3. The pressing plate 2 is arranged above the crimping station 1 and can be guided and moved in the vertical direction to crimp the terminal 3 and the wire harness 15 from top to bottom after the terminal 3 is placed on the terminal 3.

[0053] The stripping structure is located on one side of the crimping station 1. The stripping structure includes a placement rack 4 and a cutter assembly. The placement rack 4 has a placement position for the wire harness 15. The cutter assembly includes cutters located on both sides of the placement position. Specifically, Figures 5 to 8 As shown, the cutter assembly includes a mounting plate 7 , a lifting motor 8 , a lifting screw 9 , a sliding seat 10 , an upper cutter plate 11 and a lower cutter plate 12 .

[0054] In this embodiment, the mounting plate 7 is arranged in the horizontal direction and is fixed on the placement rack 4. A lifting motor 8 is arranged at the lower end of the mounting plate 7. Two lifting screws 9 arranged in parallel are screwed on the mounting plate 7 through threaded holes. The output end of the lifting motor 8 is connected to one of the lifting screws 9. Gears are fixed on the outer periphery of the two lifting screws 9. The two gears are transmitted through a gear belt 29. Each lifting screw 9 is equipped with two sliding seats 10 arranged at intervals up and down. The end of the upper cutting plate 11 is slidably installed in the two upper sliding seats 10, and the end of the lower cutting plate 12 is slidably installed in the two lower sliding seats 10.

[0055] On the basis of connecting the cutter assembly with an elastic member, a sliding seat 10 is added for the upper cutter plate 11 and the lower cutter plate 12 to slide, thereby improving the stability of the horizontal movement of the upper cutter plate 11 and the lower cutter plate 12, and further ensuring the stability of the outer sheath 30 of the wire harness 15 wrapping the wire core 31.

[0056] In order to improve the stripping stability, such as Figures 5 to 8 As shown, the cutter assembly also includes an auxiliary positioning plate, which includes an upper positioning plate 13 and a lower positioning plate 14. The upper positioning plate 13 and the lower positioning plate 14 are respectively located on the upper and lower sides of the wire harness 15, and the end of the upper positioning plate 13 is fixed in the two upper sliding seats 10, and the end of the lower positioning plate 14 is fixed in the two lower sliding seats 10. The upper positioning plate 13 and the lower positioning plate 14 are used to move up and down synchronously with the upper cutter plate 11 and the lower cutter plate 12 to assist in clamping the wire harness 15 when the upper cutter plate 11 and the lower cutter plate 12 are stripping the wire.

[0057] By providing the auxiliary positioning plate, the auxiliary positioning plate can hold the wire harness 15 when the upper cutting plate 11 and the lower cutting plate 12 cut the outer sheath 30 of the wire harness 15, preventing the wire harness 15 from shifting horizontally and ensuring the wire stripping effect. The sliding seat 10 integrates the upper cutting plate 11, the lower cutting plate 12, the upper positioning plate 13, and the lower positioning plate 14, thereby improving the structural utilization. In other embodiments, the upper and lower positioning plates can also be arranged as separate structures and no longer integrated into the sliding seat; of course, in other embodiments, the auxiliary positioning plate can also be omitted.

[0058] In this embodiment, the upper and lower cutting plates 11 and 12 each have an arc-shaped knife hole 16 on their opposing sides. The inner wall of the arc-shaped knife hole 16 has a cutter, and the inner diameter of the arc-shaped knife hole 16 matches the outer diameter of the wire harness 15. The arc-shaped knife hole 16 not only cuts the outer sheath 30 of the wire harness 15 but also limits the wire harness 15 to a certain extent, ensuring a good wire stripping effect. Simultaneously, in this embodiment, the upper and lower positioning plates 13 and 14 each have an arc-shaped hole 17 on their opposing sides. The inner diameter of the arc-shaped hole 17 matches the outer diameter of the wire harness 15. This effectively achieves a double limit on the wire harness 15 through the arc-shaped knife hole 16 and the arc-shaped hole 17, not only ensuring a good cutting effect but also limiting the position along the diameter of the wire harness 15. This effectively prevents lateral displacement of the wire harness 15 in the diameter direction and does not affect subsequent axial movement of the wire harness 15.

[0059] like Figure 5 As shown, the sliding seat 10 is a laterally arranged U-shaped rail, within which the ends of the upper cutting plate 11, lower cutting plate 12, upper positioning plate 13, and lower positioning plate 14 are placed. In other embodiments, pulleys may be arranged at the ends of the upper and lower cutting plates to enhance the smoothness of their movement. Of course, in other embodiments, the sliding seat may also be a rectangular block with ridges provided thereon, and guide grooves are provided at the ends of the upper and lower cutting plates, upper positioning plates, and lower positioning plates. The guide grooves slide over the ridges to achieve sliding and guiding cooperation between the two.

[0060] like Figure 3 、 Figure 4 、 Figure 9 and Figure 10 As shown, the pulling structure includes a pull rod 5 arranged horizontally on the upper side of the crimping station 1. The side of the pull rod 5 facing the wire stripping structure has a fixing seat 6, which contains a fixing assembly for fixing the end of the wire harness 15. The side of the pull rod 5 facing away from the fixing seat 6 has a driving mechanism that drives the pull rod 5 to move horizontally. The pull rod 5 is used to pull the stripped wire harness 15 onto the terminal 3 of the crimping station 1. As for the specific crimping process between the wire harness 15 and the terminal 3, it belongs to the prior art and does not involve the improvement points of the present invention, so it will not be described in detail.

[0061] In this embodiment, the fixing seat 6 has a through-hole for the wire harness 15 to pass through. The fixing component is a top pressure plate (not shown in the figure) arranged on the side of the through-hole. The side of the top pressure plate facing away from the through-hole has a spring 24. The operator lifts the top pressure plate to make room for the wire harness 15 to pass through the through-hole. After the wire harness 15 is placed in the through-hole, the operator releases the top pressure plate. The top pressure plate clamps the wire harness 15 under the pressure of the spring 24, thereby fixing the wire harness 15 in the through-hole. In other embodiments, the side of the top pressure plate facing away from the through-hole can also be provided with a jackscrew instead of a spring. The operator controls the pressure of the top pressure plate on the wire harness by rotating the screw-in depth, which can also achieve a fixing effect.

[0062] In this embodiment, the boosting assembly includes an elastic member, which is connected to the cutter assembly. In the up and down directions, the fixed seat 6 and the elastic member have an overlapping part, so that the elastic member has an extruded state in which the fixed seat 6 is squeezed by the fixed seat 6 during the movement of the pull rod 5, and a boosting state in which the cutter drives the outer skin 30 of the wire harness 15 to move. The outer skin 30 of the wire harness 15 in the boosting state is used to shape the wire core 31.

[0063] When the outer sheath 30 moves horizontally around the periphery of the wire harness 15, it actually wraps the wire core 31 in the wire harness 15, preventing the wire core 31 from collapsing and loosening before reaching the terminal 3, thereby reducing the possibility of the wire core 31 loosely bending in the process of moving to the top of the terminal 3 with the pulling structure.

[0064] like Figure 7 and Figure 8 As shown, the lower cutting plate 12 is provided with a sleeve 18 extending up and down, and the upper cutting plate 11 is provided with an insertion rod 19 for movably inserting into the sleeve 18. The sleeve 18 and the insertion rod 19 are guided and matched along the up and down directions to improve the movement stability of the upper cutting plate 11 and the lower cutting plate 12, and to make the upper cutting plate 11 and the lower cutting plate 12 move horizontally synchronously in the boost state.

[0065] It should be noted that the provision of the sleeve 18 and the insertion rod 19 simultaneously achieves two effects: first, it improves the movement stability of the upper and lower cutting plates 11, 12, thereby ensuring the wire stripping effect; second, it enables the upper and lower cutting plates 11, 12 to move horizontally in sync. Of course, in other embodiments, the insertion rod can be arranged on the lower cutting plate and the sleeve can be arranged on the upper cutting plate, so as to achieve horizontal linkage between the two.

[0066] like Figure 8As shown, the elastic member includes a push plate 20, a push rod 21, a baffle 22, a guide tube 23 and a spring 24. The guide tube 23 is fixed to the placement frame 4, and the push rod 21 is guided and installed in the guide tube 23. One end of the push rod 21 is connected to the spring 24 through the baffle 22, and the other end of the push rod 21 is connected to the push plate 20. The push plate 20 is used to contact the fixed seat 6. The other end of the spring 24 is connected to the lower cutting plate 12. It serves as a power source for the horizontal movement of the upper cutting plate 11 and the lower cutting plate 12.

[0067] In this embodiment, the stable movement of the elastic member is extremely important. If the elastic member fails, the blade assembly's thrust function will be lost. Through the above arrangement, the push rod 21 can stably move within the guide tube 23, stably transmitting the pressure exerted by the fixed seat 6 on the push plate 20 to the spring 24, and then to the upper and lower cutting plates 11 and 12, further ensuring effective use. In other embodiments, only the baffle and spring may be provided, with the baffle directly contacting the fixed seat.

[0068] like Figure 3 、 Figure 9 and Figure 10 As shown, the driving mechanism is a driving motor 25, and the output end of the driving motor 25 is connected to the pull rod 5 through a belt rotation structure, so that the pull rod 5 can move horizontally and rotate at the same time, so as to rotate and articulate two or more wiring harnesses 15 fixed on the fixing seat 6.

[0069] Since the number of wire harnesses 15 can be one or two, when the number of wire harnesses 15 is two, the wire cores 31 of the two wire harnesses 15 can be rotated and hinged by rotating the pull rod 5, which is beneficial to improving the compactness between the wire cores 31 and is more conducive to the stamping of the wire harness 15 and the terminal 3.

[0070] In this embodiment, there are two wire harnesses 15 , and the fixing seat 6 has two through-holes for the wire harnesses 15 to pass through. The two wire harnesses 15 are rotatably hinged. In other embodiments, the number of the wire harness can also be one, in which case only one through-hole is used.

[0071] Specifically, if Figure 10 and Figure 11As shown, the belt rotation structure includes a flat key 26 located at the output end of the driving motor 25 and extending horizontally, the inner periphery of the pull rod 5 has a keyway 27 clamped on the flat key 26, and the crimping table 1 also has a fixed block 28, the fixed block 28 has a threaded hole for the pull rod 5 to pass through, and the outer periphery of the pull rod 5 has an external thread, so that when the driving motor 25 drives the pull rod 5 to rotate, the pull rod 5 can move linearly relative to the fixed block 28. Only one driving motor 25 is needed to achieve the horizontal movement and rotation of the pull rod 5, reducing the power input cost. In other embodiments, when the number of wiring harnesses is one, the belt rotation structure may not be provided, that is, the driving motor only drives the pull rod to move back and forth horizontally, and no longer drives the pull rod to rotate. Of course, at this time, the outer periphery of the pull rod no longer needs to be provided with an external thread.

[0072] like Figure 12 As shown, it shows the process in which the upper cutting plate 11 and the lower cutting plate 12 help the outer skin 30 of the wire harness 15 to move, and the direction indicated by the arrow is the direction of the help.

[0073] The working principle of the wire harness terminal stamping device provided by the present invention is as follows: first, the upper cutting plate 11, the lower cutting plate 12, the upper positioning plate 13 and the lower positioning plate 14 are adjusted to a state with a gap through the operation of the lifting motor 8, one or two wire harnesses 15 are selected to pass through the gap between the upper cutting plate 11, the lower cutting plate 12, the upper positioning plate 13 and the lower positioning plate 14, the end of the wire harness 15 is fixed to the fixing seat 6 through the fixing assembly, and the driving motor 25 drives the pull rod 5 to move to a state where the fixing seat 6 squeezes the elastic member;

[0074] Then, the lifting motor 8 is started, the upper cutting plate 11, the lower cutting plate 12, the upper positioning plate 13 and the lower positioning plate 14 move relative to each other, the upper positioning plate 13 and the lower positioning plate 14 complete the clamping and positioning of the wire harness 15, and the cutters on the upper cutting plate 11 and the lower cutting plate 12 strip the wire harness 15, and then the upper cutting plate 11, the lower cutting plate 12, the upper positioning plate 13 and the lower positioning plate 14 do not move, and the driving motor 25 drives the pull rod 5 to retract. During the retraction process, the fixed seat 6 squeezes the elastic member The pressure is released, and the upper cutting plate 11 and the lower cutting plate 12 push the outer skin 30 of the wire harness 15 toward the pull rod 5, wrapping and shaping the wire core 31 in the wire harness 15 to prevent the wire core 31 from becoming loose or bending before reaching the terminal 3; it should be noted that in this process, the role of the upper positioning plate 13 and the lower positioning plate 14 is only to prevent the radial deviation of the wire harness 15, and will not cause resistance to the axial movement of the wire harness 15. Therefore, driven by the pull rod 5, the wire harness 15 can move smoothly in the axial direction.

[0075] According to the above description of this specification, those skilled in the art can also understand that terms such as orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

Claims

1. A wire harness terminal stamping device, comprising a crimping platform for placing terminals, and a pressing plate disposed above the crimping platform and movable up and down, for crimping the terminals and the wire harness after the wire harness is placed on the terminals, characterized in that: Also includes: The wire stripping structure on one side of the crimping station includes a placement frame having a placement position for the wire harness, and a cutter assembly including cutters located above and below the placement position; The pulling structure includes a pull rod horizontally arranged on the crimping table. The pull rod has a fixed seat on the side facing the wire stripping structure, and a fixing component for fixing the end of the wire harness in the fixed seat. The pull rod has a driving mechanism on the side facing away from the fixed seat that drives the pull rod to move horizontally. The pull rod can pull the stripped wire harness to the terminal. The boosting assembly includes an elastic member connected to the cutter assembly. In the vertical direction, the fixed seat and the elastic member have an overlapping portion. As the fixed seat moves with the pull rod, the elastic member has a state of being squeezed by the fixed seat and a boosting state in which the cutter pushes the wire harness sheath to move. In the boosting state, the wire harness sheath can shape the wire core. The cam is secured to the upper and lower ends of the cams and is secured to the bottom of the cams and is adapted to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams upwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to move the cams downwards and downwards to The elastic part includes a guide tube fixed on the placement rack, a push plate installed in the guide tube, a push rod, a baffle, and a spring. One end of the push rod is connected to the spring through the baffle, the other end of the push rod is connected to the push plate for contacting the fixed seat, and the other end of the spring is connected to the lower cutting plate.

2. The wire harness terminal stamping device according to claim 1, characterized in that: The upper cutting plate and the lower cutting plate are each provided with an arc-shaped knife hole on one side opposite to the other. The inner wall of the arc-shaped knife hole is provided with the cutter. The inner diameter of the arc-shaped knife hole is adapted to the outer diameter of the wire harness.

3. The wire harness terminal stamping device according to claim 1 or 2, characterized in that: The upper positioning plate and the lower positioning plate each have an arc-shaped hole on one opposite side, and the inner diameter of the arc-shaped hole is adapted to the outer diameter of the wiring harness.

4. The wire harness terminal stamping device according to claim 1 or 2, characterized in that: The sliding seat is a U-shaped rail arranged laterally, and the U-shaped rail is used to place the ends of the upper cutting plate, the lower cutting plate, the upper positioning plate and the lower positioning plate.

5. The wire harness terminal stamping device according to any one of claims 1 to 2, characterized in that: The lower cutting plate is provided with a sleeve extending up and down, and the upper cutting plate is provided with an insertion rod for movably inserting into the sleeve. The sleeve and the insertion rod are guided and cooperated along the up and down directions to improve the movement stability of the upper and lower cutting plates, and to make the upper and lower cutting plates move horizontally synchronously in the boost state.

6. The wire harness terminal stamping device according to any one of claims 1 to 2, characterized in that: The driving mechanism is a driving motor, and the output end of the driving motor is connected to the pull rod through a belt rotation structure, so that the pull rod can move horizontally and rotate at the same time, so as to rotate and articulate two or more wire harnesses fixed on the fixing seat.

7. The wire harness terminal stamping device according to claim 6, characterized in that: The belt rotation structure includes a flat key located at the output end of the driving motor and extending horizontally. The inner periphery of the pull rod has a keyway clamped on the flat key. The crimping table also has a fixed block, the fixed block has a threaded hole for the pull rod to pass through, and the outer periphery of the pull rod has an external thread, so that the pull rod can move linearly relative to the fixed block while the driving motor drives the pull rod to rotate.

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