Wire harness terminal stamping device

Abstract

The invention relates to the technical field of wire harness terminal processing, in particular to a wire harness terminal stamping device which comprises a crimping table, an extrusion plate and a wire stripping structure, the extrusion plate is arranged above the crimping table and can move in a guiding mode in the vertical direction, the wire stripping structure is located on one side of the crimping table, and the wire stripping structure comprises a placing frame and a cutter assembly. The cutter assembly comprises cutters located on the upper side and the lower side of the containing position. The pulling structure comprises a pull rod, one side, facing the wire stripping structure, of the pull rod is provided with a fixing seat, a fixing assembly is arranged in the fixing seat, and one side, back to the fixing seat, of the pull rod is provided with a driving mechanism for driving the pull rod to horizontally move; the boosting assembly comprises an elastic piece, the elastic piece is connected with the cutter assembly, and the fixing seat and the elastic piece have a coincident part in the vertical direction, and the whole scheme has the advantages that the possibility that the wire core is loosened and bent in the process of moving to the position above the terminal along with the pulling structure is reduced, the crimping effect of the wire core and the terminal is improved, and the crimping quality is ensured.

Description

Technical Field

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

[0002] The stamping process of wire harness terminals includes a stamping stage and a crimping stage. In the stamping stage, a metal strip is fed into a die by a feeding device, and the slider of a stamping machine drives the upper die to press down. The die processes the material such as shearing, punching, and bending, gradually forming the material into a wire harness terminal. In the crimping stage, the wire harness is cut to an appropriate length, the front-end insulating layer is stripped off with a wire stripping tool to expose the wire core, the processed wire core is inserted into the corresponding position of the stamped terminal, and a crimping tool (such as a crimping pliers, an automatic crimping machine) is used to apply pressure to the contact area between the terminal and the wire core, causing the terminal to deform and tightly wrap the wire core to achieve electrical connection and mechanical fixation.

[0003] For example, a patent document with the authorization announcement number CN112054364B discloses a wire harness terminal crimping device, which includes a bottom plate. Two symmetrically distributed support columns are fixedly connected to the top of one side of the bottom plate. Two support frames are symmetrically and fixedly connected to the outside of the two support columns on one side of the bottom plate. The center position of the top of the bottom plate is rotationally connected to a turntable through a first rotating shaft. The top of the turntable is fixedly connected with a first crimping seat, a second crimping seat, and a third crimping seat at equal angles in a ring shape. A crimping mechanism is arranged at the top of one side of the bottom plate. By arranging the crimping mechanism at the top of one side of the bottom plate, the first pressing plate and the second pressing plate are rotationally connected through a second rotating shaft. The wire harness terminal is squeezed between the first pressing plate and the second pressing plate, and the wire harness terminal is clamped by the mutual rotation between the first pressing plate and the second pressing plate, improving the working efficiency of the wire harness terminal crimping device.

[0004] However, in actual work, there are still certain deficiencies in the above device: the wire core is usually composed of multiple soft and fine wires. After stripping, it loses the restraint of the insulating layer and is prone to loosening and bending. This brings difficulties to accurately placing the wire core at the designated position of the terminal, thereby affecting the crimping quality. If the loose and bent wire core is directly put into the above device for crimping, problems such as insecure crimping and poor contact will occur. If the wire core is sorted by manually using sorting pliers and inserted into the terminal after being sorted neatly, the preparation time of the wire core will be increased, affecting the crimping efficiency. Summary of the Invention

[0005] The present invention provides a wire harness terminal stamping device to solve the technical problems in the prior art that the wire core loses the restraint of the insulating layer after wire stripping and is prone to loosening and bending, resulting in insecure crimping and poor contact.

[0006] To solve the above problems, the wire harness terminal stamping device provided by the present invention adopts the following technical solutions: A wire harness terminal stamping device includes a crimping table and an extrusion plate. The crimping table is used for placing terminals, and the extrusion plate is arranged above the crimping table and can be guided to move in the up and down direction to crimp the terminal and the wire harness from top to bottom after the wire harness is placed on the terminal. It further includes: A wire stripping structure located on one side of the crimping table. The wire stripping structure includes a placement rack and a cutter assembly. The placement rack has a placement position for placing the wire harness, and the cutter assembly includes cutters located on the upper and lower sides of the placement position. A pulling structure, which includes a pull rod horizontally arranged on the upper side of the crimping table. The side of the pull rod facing the wire stripping structure has a fixed seat, and the fixed seat is provided with a fixing component for fixing the end of the wire harness. The side of the pull rod facing away from the fixed seat has a driving mechanism for driving the pull rod to move horizontally. The pull rod is used to pull the wire harness after wire stripping onto the terminal on the crimping table. A boosting assembly, which includes an elastic member. The elastic member is connected to the cutter assembly. In the up and down direction, the fixed seat and the elastic member have an overlapping part, so that in the stroke of the fixed seat moving with the pull rod, the elastic member has a squeezed state being squeezed by the fixed seat, and a boosting state for driving the cutter to push the wire harness outer skin to move. The wire harness outer skin in the boosting state is used to shape the wire core.

[0007] The beneficial effects of the above technical solution are as follows: The crimping table and the extrusion plate are used to crimp the wire harness and the terminal into shape. Before that, by setting the wire stripping structure, the pulling structure and the boosting assembly, while the wire stripping structure and the pulling structure cooperate, the boosting assembly cooperates with the cutter assembly in the wire stripping structure, so that the cutter assembly can play a second role after wire stripping, that is, it boosts the wire stripping outer skin to move horizontally in the direction of the pulling structure. While the wire stripping outer skin moves horizontally on the outer periphery of the wire harness, it actually wraps the wire core in the wire harness, avoiding the wire core from collapsing and loosening before reaching the terminal, reducing the possibility of the wire core being loose and bent during the process of moving to the upper part of the terminal with the pulling structure, improving the crimping effect between the wire core and the terminal, and ensuring the crimping quality.

[0008] Further, the cutter assembly includes a mounting plate, a lifting motor, a lifting screw, a sliding seat, an upper cutter plate and a lower cutter plate. The mounting plate is arranged horizontally and fixed on the placement rack. The lower end of the mounting plate is provided with a lifting motor. Two parallel arranged lifting screws are screwed through threaded holes on the mounting plate. The output end of the lifting motor is connected to one of the lifting screws. Gears are fixed on the outer peripheries of the two lifting screws, and the two gears are driven by a gear belt. Two sliding seats arranged at intervals up and down are installed on each lifting screw. The end of the upper cutter plate is slidably installed in the two upper sliding seats, and the end of the lower cutter plate is slidably installed in the two lower sliding seats.

[0009] The beneficial effects of the above technical solution are as follows: On the basis of connecting the cutter assembly with an elastic member, a sliding seat for the upper cutter plate and the lower cutter plate to slide is added, 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 wrapping of the wire harness outer skin around the wire core.

[0010] Furthermore, the cutter assembly further includes an auxiliary positioning plate member, 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 cutter plate and the lower cutter plate to assist in clamping the wire harness when the upper cutter plate and the lower cutter plate strip the wire.

[0011] The beneficial effects of the above technical solution are as follows: By setting the auxiliary positioning plate member, when the upper cutter plate and the lower cutter plate cut the outer skin of the wire harness, the auxiliary positioning plate member can hold the wire harness to prevent the wire harness from shifting in the horizontal direction and ensure the wire stripping effect.

[0012] Furthermore, both opposite sides of the upper cutter plate and the lower cutter plate have arc-shaped cutter holes, and the inner wall of the arc-shaped cutter holes has the cutters, and the inner diameter size of the arc-shaped cutter holes is adapted to the outer diameter size of the wire harness.

[0013] The beneficial effects of the above technical solution are as follows: The arc-shaped cutter holes can not only cut the outer skin of the wire harness, but also limit the wire harness to a certain extent, ensuring the wire stripping effect.

[0014] Furthermore, both opposite sides of the upper positioning plate and the lower positioning plate have arc-shaped holes, and the inner diameter size of the arc-shaped holes is adapted to the outer diameter size of the wire harness.

[0015] Furthermore, the sliding seat is a U-shaped rail arranged laterally, and the ends of the upper cutter plate, the lower cutter plate, the upper positioning plate and the lower positioning plate are placed inside the U-shaped rail.

[0016] Furthermore, a vertically extending sleeve is arranged on the lower cutter plate, and a plug rod for movably inserting into the sleeve is arranged on the upper cutter plate. The sleeve and the plug rod are in guiding cooperation in the vertical direction to improve the movement stability of the upper cutter plate and the lower cutter plate, and to make the upper cutter plate and the lower cutter plate move horizontally synchronously in the boosting state.

[0017] The beneficial effects of the above technical solution are as follows: 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 cutter plate and the lower cutter plate, thereby ensuring the wire stripping effect. Second, it can make the upper cutter plate and the lower cutter plate move horizontally synchronously, so that when boosting the movement of the wire harness outer skin, the wire harness outer skin can move more stably.

[0018] Further, the elastic member includes a push plate, a push rod, a baffle plate, a guide tube and a spring. The guide tube is fixed on the placement rack. The push rod is installed in the guide tube in a guiding manner. One end of the push rod is connected to the spring through the baffle plate, 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.

[0019] The beneficial effects of the above technical solution are as follows: 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 settings, the extrusion of the fixed seat on the push plate can be stably transmitted to the spring, and then to the upper cutting plate and the lower cutting plate, further ensuring the use effect.

[0020] Further, the driving mechanism is a driving motor. The output end of the driving motor is connected to the pull rod through a belt-rotating structure, so that the pull rod rotates while moving horizontally to perform rotational hinging on two or more wire harnesses fixed on the fixed seat.

[0021] Further, the belt-rotating structure includes a flat key located at the output end of the driving motor and extending horizontally. The inner circumference of the pull rod has a keyway clamped on the flat key. The pressing table also has a fixed block. The fixed block has a threaded hole for the pull rod to pass through. The outer circumference of the pull rod has an external thread, so that while the driving motor drives the pull rod to rotate, the pull rod can perform linear movement relative to the fixed block.

[0022] The beneficial effects of the above technical solution are as follows: Through this setting, only one driving motor is required to realize the horizontal movement and rotation of the pull rod, reducing the power input cost.

[0023] Further, the fixed seat has a perforation for the wire harness to pass through. The number of perforations is adapted to the number of wire harnesses. The fixing component includes a top pressing plate arranged on the side of the perforation. One side of the top pressing plate facing away from the perforation has a spring. The spring is used to push the top pressing plate to clamp the wire harness in the perforation.

[0024] The beneficial effects of the above technical solution are as follows: The operator lifts the top pressing plate to make room for the wire harness to pass through the perforation. When the wire harness is placed in the perforation and then released, the top pressing plate clamps the wire harness under the top pressure of the spring, realizing the fixation of the wire harness in the perforation. The whole process is simple and effective, and can effectively fix the wire harness.

[0025] The beneficial effects of the wire harness terminal stamping device provided by the present invention are as follows: (1) By using the cooperation between the boosting component and the cutter component in the wire stripping structure, the cutter component can play a second role after completing wire stripping, that is, boosting the wire stripping outer skin to move horizontally in the direction of the pulling structure. While the wire stripping outer skin moves horizontally around the wire harness, it actually wraps the wire cores in the wire harness, preventing the wire cores from collapsing and loosening before reaching the terminal, reducing the possibility of the wire cores loosening and bending during the movement to the upper part of the terminal with the pulling structure, improving the crimping effect between the wire cores and the terminal, and ensuring the crimping quality. (2) The settings of the sleeve and the insertion rod have two effects at the same time. First, they can improve the movement stability of the upper cutter plate and the lower cutter plate, thus ensuring the wire stripping effect. Second, they can make the upper cutter plate and the lower cutter plate move horizontally synchronously, so that the wire stripping outer skin can move more stably when boosting its movement. (3) As the power source for the horizontal movement of the upper cutter plate and the lower cutter plate, the stable movement of the elastic component is extremely important. Through the above settings, the extrusion of the fixed seat on the push plate can be stably transmitted to the spring and then to the upper cutter plate and the lower cutter plate, further ensuring the use effect. (4) Only one driving motor is needed to realize the horizontal movement and rotation of the pull rod, reducing the power input cost. (5) When operating the end of the fixed wire harness, the operator can quickly operate by lifting the top pressing plate. When the wire harness is placed into the perforation and then the hand is released, the top pressing plate clamps the wire harness under the top pressure of the spring, realizing the fixation of the wire harness in the perforation. The whole process is simple and effective, and can realize the effective fixation of the wire harness. Through the above settings, the present invention adds a wire stripping structure, a pulling structure and a boosting component to the wire harness terminal stamping device, completing the improvement and upgrade of the existing device, and effectively solving the technical problems in the prior art that the wire cores are prone to looseness and bending after wire stripping due to the loss of the constraint of the insulating layer, resulting in insecure crimping and poor contact. Description of the Drawings

[0026] Figure 1 It is the overall schematic diagram of the wire harness terminal stamping device provided by the present invention; Figure 2 It is Figure 1 the enlarged schematic diagram at A in Figure 3 It is the rear view of the wire harness terminal stamping device provided by the present invention; Figure 4 It is the cooperation schematic diagram among the terminal, the pull rod and the extrusion plate in the present invention; Figure 5 It is the schematic diagram of the cooperation among the wire stripping structure, the boosting component and the pull rod in the present invention Figure 1 ; Figure 6 It is the schematic diagram of the cooperation among the wire stripping structure, the boosting component and the pull rod in the present inventionFigure 2 ; Figure 7 Schematic diagram of the cooperation of the wire stripping structure, boosting component and pull rod in the present invention Figure 3 ; Figure 8 Schematic diagram of the cooperation of the wire stripping structure, boosting component and pull rod in the present invention Figure 4 ; Figure 9 Schematic diagram of the cooperation of the driving motor, pull rod and fixed block in the present invention; Figure 10 Schematic diagram of the cooperation between the output end of the driving motor and the pull rod in the present invention; Figure 11 Cross-sectional view of the pull rod in the present invention; Figure 12 Schematic diagram of the upper cutting knife plate and the lower cutting knife plate boosting the movement of the outer skin of the wire harness in the present invention.

[0027] Explanation of reference numerals: 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 knife plate; 12, lower cutting knife plate; 13, upper positioning plate; 14, lower positioning plate; 15, wire harness; 16, arc-shaped knife hole; 17, arc-shaped hole; 18, sleeve; 19, insertion rod; 20, push plate; 21, push rod; 22, baffle; 23, guide tube; 24, spring; 25, driving motor; 26, flat key; 27, keyway; 28, fixed block; 29, gear belt; 30, outer skin; 31, wire core. Detailed implementation manners

[0028] Next, with reference to several representative implementation manners of the present invention, the principles and spirits of the present invention will be elaborated in detail.

[0029] Embodiment of the wire harness terminal stamping device provided by the present invention: As Figures 1 to 4 shown, the wire harness terminal stamping device includes a crimping table 1, an extrusion plate 2, a wire stripping structure, a pulling structure and a boosting component. The crimping table 1 is used for placing the terminal 3, and the extrusion plate 2 is arranged above the crimping table 1 and can be guided to move in the up and down direction to crimp the terminal 3 and the wire harness 15 from top to bottom after the wire harness 15 is placed on the terminal 3.

[0030] The wire stripping structure is located on one side of the crimping table 1. The wire stripping structure includes a placement rack 4 and a cutting knife assembly. The placement rack 4 has a placement position for placing the wire harness 15. The cutting knife assembly includes cutting knives located on the upper and lower sides of the placement position. Specifically, as Figures 5 to 8 shown, the cutting knife assembly includes a mounting plate 7, a lifting motor 8, a lifting screw 9, a sliding seat 10, an upper cutting knife plate 11 and a lower cutting knife plate 12.

[0031] In this embodiment, the mounting plate 7 is arranged horizontally and fixed on the placement rack 4. A lifting motor 8 is arranged at the lower end of the mounting plate 7. Two parallelly arranged lifting screw rods 9 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 screw rods 9. Gears are fixed on the outer peripheries of the two lifting screw rods 9, and the two gears are driven by a gear belt 29. Two sliding seats 10 are arranged at intervals up and down on each lifting screw rod 9. The end of the upper cutter plate 11 is slidably mounted in the two upper sliding seats 10, and the end of the lower cutter plate 12 is slidably mounted in the two lower sliding seats 10.

[0032] On the basis of connecting the cutter assembly with elastic members, sliding seats 10 for the upper cutter plate 11 and the lower cutter plate 12 to slide are added, which improves the stability of the horizontal movement of the upper cutter plate 11 and the lower cutter plate 12, and further ensures the stability of the wrapping of the outer skin 30 of the wire harness 15 around the wire core 31.

[0033] To improve the stability of wire stripping, as Figures 5 to 8 shown, the cutter assembly further includes an auxiliary positioning plate member. The auxiliary positioning plate member 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. 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 strip the wire.

[0034] By setting the auxiliary positioning plate member, when the upper cutter plate 11 and the lower cutter plate 12 cut the outer skin 30 of the wire harness 15, the auxiliary positioning plate member can hold the wire harness 15 to prevent the wire harness 15 from shifting in the horizontal direction, ensuring the wire stripping effect. The sliding seats 10 integrally arrange the upper cutter plate 11, the lower cutter plate 12, the upper positioning plate 13 and the lower positioning plate 14, improving the structural utilization rate. In other embodiments, the upper positioning plate and the lower positioning plate can also be arranged in separate structures and are no longer integrally arranged in the sliding seats; of course, in other embodiments, the auxiliary positioning plate member can also not be provided.

[0035] In this embodiment, both the opposite sides of the upper cutting blade plate 11 and the lower cutting blade plate 12 are provided with arc-shaped cutting holes 16. The inner wall of the arc-shaped cutting hole 16 is provided with a cutting blade, and the inner diameter dimension of the arc-shaped cutting hole 16 is adapted to the outer diameter dimension of the wire harness 15. The arc-shaped cutting hole 16 can not only cut the outer skin 30 of the wire harness 15, but also limit the wire harness 15 to a certain extent by itself, ensuring the wire stripping effect. At the same time, in this embodiment, both the opposite sides of the upper positioning plate 13 and the lower positioning plate 14 are provided with arc-shaped holes 17, and the inner diameter dimension of the arc-shaped holes 17 is adapted to the outer diameter dimension of the wire harness 15. In this way, the double limit of the wire harness 15 is actually completed through the arc-shaped cutting hole 16 and the arc-shaped hole 17, which not only ensures the cutting effect, but also this kind of limit is the limit along the diameter direction of the wire harness 15, effectively avoiding the lateral displacement of the wire harness 15 in the diameter direction and not affecting the subsequent movement of the wire harness 15 in the axial direction.

[0036] As Figure 5 shown, the sliding seat 10 is a U-shaped rail arranged laterally, and the ends of the upper cutting blade plate 11, the lower cutting blade plate 12, the upper positioning plate 13 and the lower positioning plate 14 are placed inside the U-shaped rail. In other embodiments, pulleys may also be arranged at the ends of the upper cutting blade plate and the lower cutting blade plate to improve the smoothness of the movement of the upper cutting blade plate and the lower cutting blade plate. Of course, in other embodiments, the sliding seat may also be a rectangular block, and convex strips are provided on the rectangular block. Guide grooves are provided at the ends of the upper cutting blade plate, the lower cutting blade plate, the upper positioning plate and the lower positioning plate, and the guide grooves slidably cover the convex strips to realize the sliding guide cooperation between the two.

[0037] As Figure 3 、 Figure 4 、 Figure 9 and Figure 10 shown, the pulling structure includes a pull rod 5 horizontally arranged on the upper side of the crimping table 1. A fixed seat 6 is provided on the side of the pull rod 5 facing the wire stripping structure. A fixing component for fixing the end of the wire harness 15 is provided inside the fixed seat 6. A driving mechanism for driving the horizontal movement of the pull rod 5 is provided on the side of the pull rod 5 opposite to the fixed seat 6. The pull rod 5 is used to pull the wire harness 15 after wire stripping to the terminal 3 on the crimping table 1. As for the specific crimping process of the wire harness 15 and the terminal 3, it belongs to the prior art and does not involve the improvement points in the present invention, so it will not be described in detail.

[0038] In this embodiment, the fixing base 6 has a perforation for the wire harness 15 to pass through. The fixing component is a pressing plate (not shown in the figure) provided on the side of the perforation. A spring 24 is provided on the side of the pressing plate facing away from the perforation. The operator lifts the pressing plate to make space for the wire harness 15 to pass through the perforation. After the wire harness 15 is placed into the perforation and the hand is released, the pressing plate clamps the wire harness 15 under the pressing of the spring 24, realizing the fixation of the wire harness 15 in the perforation. In other embodiments, instead of a spring, a set screw may be provided on the side of the pressing plate facing away from the perforation. The operator controls the pressing and fixing of the wire harness by the pressing plate by rotating the screwing depth of the set screw, and the fixing effect can also be achieved.

[0039] In this embodiment, the boosting component includes an elastic member. The elastic member is connected to the cutter assembly. In the vertical direction, there is an overlapping part between the fixing base 6 and the elastic member, so that in the stroke of the fixing base 6 moving with the pull rod 5, the elastic member has a squeezed state being squeezed by the fixing base 6, and a boosting state of driving the cutter to push 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.

[0040] While the outer skin 30 makes a horizontal movement on the outer 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, and reducing the possibility of the wire core 31 loosening and bending during the movement to above the terminal 3 along with the pulling structure.

[0041] As Figure 7 and Figure 8 shown, a vertically extending sleeve 18 is arranged on the lower cutter plate 12, and a plug rod 19 for movably inserting into the sleeve 18 is arranged on the upper cutter plate 11. The sleeve 18 and the plug rod 19 are in guiding cooperation in the vertical direction to improve the movement stability of the upper cutter plate 11 and the lower cutter plate 12, and to make the upper cutter plate 11 and the lower cutter plate 12 move horizontally synchronously in the boosting state.

[0042] It should be noted that the arrangement of the sleeve 18 and the plug rod 19 has two effects at the same time. First, it can improve the movement stability of the upper cutter plate 11 and the lower cutter plate 12, thus ensuring the wire stripping effect. Second, it can make the upper cutter plate 11 and the lower cutter plate 12 move horizontally synchronously. Of course, in other embodiments, a plug rod may also be arranged on the lower cutter plate and a sleeve may be arranged on the upper cutter plate, as long as the two can realize the linkage in the horizontal direction.

[0043] As 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 on the placement rack 4. The push rod 21 is guidingly installed in the guide tube 23. One end of the push rod 21 is connected to the spring 24 through the baffle 22. 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 blade plate 12. It serves as the power source for the horizontal movement of the upper cutting blade plate 11 and the lower cutting blade plate 12.

[0044] In this embodiment, the stable movement of the elastic member is extremely important. Once the elastic member fails, the boosting function of the cutting blade assembly will not be achievable. Through the above arrangement, the push rod 21 can stably move within the guide tube 23, and can stably transmit the extrusion of the fixed seat 6 on the push plate 20 to the spring 24, and then to the upper cutting blade plate 11 and the lower cutting blade plate 12, further ensuring the use effect. In other embodiments, only the baffle and the spring can also be provided, and the baffle is directly used to contact the fixed seat.

[0045] As Figure 3 , Figure 9 and Figure 10 shown, the driving mechanism is a driving motor 25. The output end of the driving motor 25 is connected to the pull rod 5 through a belt transmission structure, so that the pull rod 5 rotates while moving horizontally, for the rotational hinge of two or more wire harnesses 15 fixed on the fixed seat 6.

[0046] Since the number of wire harnesses 15 can be one or two, when the number of wire harnesses 15 is two, the rotational hinge of the cores 31 of the two wire harnesses 15 can be achieved through the rotation of the pull rod 5, which is beneficial to improving the compactness between the cores 31 and is more conducive to the stamping of the wire harness 15 and the terminal 3.

[0047] In this embodiment, the number of wire harnesses 15 is two. The fixed seat 6 has two through holes for the wire harnesses 15 to pass through. The two wire harnesses 15 are rotationally hinged. In other embodiments, the number of wire harnesses can also be one, and only one through hole is used at this time.

[0048] Specifically, as Figure 10 and Figure 11As shown in the figure, the belt rotation structure includes a flat key 26 located at the output end of the driving motor 25 and extending horizontally. The inner circumference of the pull rod 5 has a keyway 27 that is clamped on the flat key 26. The crimping table 1 also has a fixing block 28. The fixing block 28 has a threaded hole for the pull rod 5 to pass through. The outer circumference of the pull rod 5 has an external thread, so that while the driving motor 25 drives the pull rod 5 to rotate, the pull rod 5 can move linearly relative to the fixing block 28. Only one driving motor 25 is needed to realize the horizontal movement and rotation of the pull rod 5, reducing the power input cost. In other embodiments, when the number of wire harnesses is one, the belt rotation structure may not be provided, that is, the driving motor only drives the pull rod to move horizontally back and forth and no longer drives the pull rod to rotate. Of course, at this time, the outer circumference of the pull rod no longer needs to be provided with an external thread.

[0049] As Figure 12 shown, in which the process of the upper cutting blade plate 11 and the lower cutting blade plate 12 boosting the movement of the outer skin 30 of the wire harness 15 is shown, and the direction indicated by the arrow is the boosting direction.

[0050] The working principle of the wire harness terminal stamping device provided by the present invention is as follows: First, by the operation of the lifting motor 8, the upper cutting blade plate 11, the lower cutting blade plate 12, the upper positioning plate 13 and the lower positioning plate 14 are adjusted to a spaced state. Select one or two wire harnesses 15 to pass through the space between the upper cutting blade plate 11, the lower cutting blade plate 12, the upper positioning plate 13 and the lower positioning plate 14, and fix the end of the wire harness 15 on the fixing seat 6 through the fixing component. The driving motor 25 drives the pull rod 5 to move to a state where the fixing seat 6 presses the elastic member; Then, start the lifting motor 8. The upper cutting blade plate 11, the lower cutting blade plate 12, the upper positioning plate 13 and the lower positioning plate 14 move relatively. The upper positioning plate 13 and the lower positioning plate 14 complete the clamping and positioning of the wire harness 15. The cutting blades on the upper cutting blade plate 11 and the lower cutting blade plate 12 strip the wire harness 15. Then, the positions of the upper cutting blade plate 11, the lower cutting blade plate 12, the upper positioning plate 13 and the lower positioning plate 14 remain unchanged, and the driving motor 25 drives the pull rod 5 to retract. During the retraction process, the extrusion of the fixing seat 6 on the elastic member is released, and the upper cutting blade plate 11 and the lower cutting blade plate 12 push the outer skin 30 of the wire harness 15 towards the direction of the pull rod 5 to shape the wrapping of the wire core 31 in the wire harness 15, avoiding the wire core 31 from loosening and bending before reaching the terminal 3; It should be noted that during this process, the function of the upper positioning plate 13 and the lower positioning plate 14 is only to prevent the wire harness 15 from radially shifting 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.

[0051] Based on the above description of this specification, those skilled in the art can also understand that terms such as orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

Claims

1. A wire harness terminal stamping device, comprising a crimping table and an extrusion plate. The crimping table is used for placing terminals, and the extrusion plate is arranged above the crimping table and can be guided to move in the up and down direction so as to crimp the terminal and the wire harness from top to bottom after the wire harness is placed on the terminal. It is characterized in that, Also includes: The wire stripping structure is located on one side of the crimping station. The wire stripping structure includes a placement frame and a cutter assembly. The placement frame has a placement position for placing the wire harness. The cutter assembly includes cutters located on both sides of the placement position. The pulling structure includes a pull rod horizontally arranged on the upper side of the crimping table, the pull rod has a fixed seat on the side facing the stripping structure, the fixed seat has a fixing assembly for fixing the end of the wire harness, and the pull rod has a driving mechanism for driving the pull rod to move horizontally on the side facing away from the fixed seat, and the pull rod is used to pull the stripped wire harness to the terminal of the crimping table; 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 portion, so that the elastic member has an extruded state in which the fixed seat is squeezed by the fixed seat during the travel of 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.

2. The wire harness terminal stamping device according to claim 1, characterized in that: The cutter assembly includes a mounting plate, a lifting motor, a lifting screw, a sliding seat, an upper cutter plate and a lower cutter plate; the mounting plate is arranged in a horizontal direction and is fixed on a placement frame, 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 circumference of the two lifting screws, 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 cutter plate is slidably installed in the two upper sliding seats, and the end of the lower cutter plate is slidably installed in the two lower sliding seats.

3. The wire harness terminal stamping device according to claim 2, characterized in that: 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.

4. The wire harness terminal stamping device according to claim 3, characterized in that: The upper cutting plate and the lower cutting plate have arc-shaped cutting holes on opposite sides, the inner wall of the arc-shaped cutting hole has the cutting knife, and the inner diameter of the arc-shaped cutting hole is adapted to the outer diameter of the wiring harness.

5. The wire harness terminal stamping device according to claim 3 or 4, characterized in that: The upper positioning plate and the lower positioning plate have arc-shaped holes on opposite sides, and the inner diameter of the arc-shaped hole is adapted to the outer diameter of the wiring harness.

6. The wire harness terminal stamping device according to claim 3 or 4, 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.

7. The wire harness terminal stamping device according to any one of claims 2 to 4, 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 cooperate with each other in guiding along the up and down directions to improve the movement stability of the upper cutting plate and the lower cutting plate, and make the upper cutting plate and the lower cutting plate move horizontally synchronously in the boost state.

8. The wire harness terminal stamping device according to claim 7, wherein: The elastic member includes a push plate, a push rod, a baffle plate, a guide tube and a spring. The guide tube is fixed on the placement rack. The push rod is guidingly installed in the guide tube. One end of the push rod is connected to the spring through the baffle plate, 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 blade plate.

9. The wire harness terminal stamping device according to any one of claims 1 to 4, characterized in that: The driving mechanism is a driving motor. The output end of the driving motor is connected to the pull rod through a belt-rotation structure, so that the pull rod rotates while moving horizontally to perform rotational hinging on two or more wire harnesses fixed on the fixed seat.

10. The wire harness terminal stamping device according to claim 9, wherein: The belt-rotation structure includes a flat key located at the output end of the driving motor and extending horizontally. The inner circumference of the pull rod has a keyway that is clamped on the flat key. The crimping table also has a fixing block, and the fixing block has a threaded hole for the pull rod to pass through. The outer circumference of the pull rod has an external thread, so that while the driving motor drives the pull rod to rotate, the pull rod can move linearly relative to the fixing block.

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