A fully automatic wire harness crimping machine for automotive wire harness connection

Abstract

The present invention proposes a fully automatic wire harness crimping machine for automobile wire harness connection, which relates to the field of automobile wire harness technology, including a crimping base, a crimping structure, a ring cutting structure, a conveying structure and a traction structure. The top surface of the crimping base is provided with a crimping groove, and the crimping structure is installed in the crimping groove. The crimping structure is used to crimp the wire harness and the terminal together; the inner wall of the crimping groove is provided with a feeding limit channel. The present invention proposes a fully automatic wire harness crimping machine for automobile wire harness connection. Through the crimping base, the crimping structure, the ring cutting structure, the conveying structure and the traction structure, when performing the crimping operation, the elastic rubber ring in the ring cutting structure can limit the position of the cable before the ring cutting operation is performed, thereby ensuring the ring cutting quality of the cable insulation sheath, reducing the situation of cutting the wire core metal wire, and also reducing the situation that the wire core metal wire cannot be completely wrapped by the terminal, thereby ensuring the crimping quality of the wire harness, thereby reducing the failure of the wire harness during use.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wire harness processing, in particular to a full-automatic wire harness crimping machine for automobile wire harness connection. Background Art

[0002] The automotive wiring harness is the main network of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to a component that is formed by crimping the contact terminal (connector) made of copper material with the wire and cable, and then plasticizing the insulator or adding a metal shell on the outside to form a connecting circuit. At present, when most automotive cables are crimped with the terminals, the insulating rubber skin at the end of the cable is first stripped off, and then the end of the cable with the stripped insulating rubber skin is placed on the crimping station and crimped together with the terminal. However, when stripping the insulating rubber skin and placing the cable end on the terminal, most of the time, the robot directly picks up the cable and places the cable on the crimping station. During this process, the metal wires of the wire core may spread out. During the crimping process, the terminal cannot completely wrap the metal wires of the wire core for crimping, resulting in problems with the crimping quality. During use, it may cause poor contact (the terminal fails to completely cover all the wires). The presence of metal wire will cause part of the metal wire to not contact the terminal, resulting in insufficient contact area, increased contact resistance, and affecting the stability and efficiency of the circuit); increased resistance (because the metal wire is not completely wrapped, the resistance of the crimping point will increase, which may cause the line to heat up and affect the performance and life of the equipment); signal interference (in high current or high voltage applications, incompletely crimped metal wire may cause electrical failures or even cause safety problems such as fire); safety risks (the terminal fails to completely wrap the metal wire, which may result in a loose connection and easy loosening during use, resulting in disconnection) and other issues. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a fully automatic wire harness crimping machine for connecting automobile wire harnesses.

[0004] The present invention provides a fully automatic wire harness crimping machine for automobile wire harness connection, comprising a crimping base, a crimping structure, a ring cutting structure, a conveying structure and a traction structure. The top surface of the crimping base is provided with a crimping groove, the crimping structure is installed in the crimping groove, and the crimping structure is used to crimp the wire harness and the terminal together;

[0005] The inner wall of the crimping groove is provided with a feeding limiting channel, and the terminal can be conveyed to the crimping station of the crimping structure through the feeding limiting channel;

[0006] The conveying structure is used to convey the wire harness to the crimping station of the crimping structure;

[0007] The circular cutting structure is used to cut off the insulating rubber skin at the end of the wire harness. The circular cutting structure includes a circular block, an elastic rubber ring, a circular cutting blade, an adjustment component, a driving component and a clamping component. The number of the circular blocks is two, and the two circular blocks are fixedly mounted on the crimping base. The axes of the two circular blocks coincide, and there is a gap between the two circular blocks. The adjustment component is used to adjust the opening size of the elastic rubber ring, and the center point of the elastic rubber ring is always on the axis of the circular block. The driving component is used to drive the circular cutting blade to perform circular motion on the side of the circular block.

[0008] The traction structure is used to grasp the end of the wire harness and pull the end of the wire harness into the annular block for annular cutting;

[0009] The conveying structure can also pull the end of the wire harness stripped of the insulating rubber skin back to the crimping station of the crimping structure.

[0010] Preferably, the adjustment component includes a gear ring, a transmission gear, an execution gear and a rocking arm; a rotation groove is opened in the annular block, the gear ring is rotatably installed in the rotation groove, the number of the transmission gears is at least four, the four transmission gears are arranged in a cross shape, and the four transmission gears are all meshed with the inner ring of the gear ring, the number of the execution gears is the same as the number of the transmission gears and are arranged one by one, the execution gear is rotatably installed in the rotation groove, and the execution gear is meshed with the transmission gear, one end of the rocking arm is fixedly connected to the execution gear, the elastic rubber ring is installed in a regular quadrilateral at the ends of the four rocking arms, and the elastic rubber ring can be received in the rotation groove.

[0011] Preferably, the driving assembly includes an annular electric slide rail and an electric push rod; the annular electric slide rail is installed on the side of one of the annular blocks close to the other annular block, the axis of the annular electric slide rail coincides with the axis of the annular block, the electric push rod is fixedly installed on the slider of the annular electric slide rail, and the circular cutting blade is fixedly installed on the output shaft of the electric push rod.

[0012] Preferably, the clamping assembly comprises a cylinder and a clamping block; the number of the cylinders is two, the inner ring wall of the annular block is symmetrically provided with receiving grooves, the cylinder is fixedly installed in the receiving groove, the clamping block is fixedly installed on the output shaft of the cylinder, and the clamping block can be received in the receiving groove;

[0013] A V-shaped groove is provided on one side of the two clamping blocks close to each other, and a soft anti-skid pad is bonded to the inner wall of the V-shaped groove.

[0014] Preferably, the crimping structure includes an elastic telescopic base, a lower die, a portal frame, a hydraulic rod and an upper die; the number of the elastic telescopic bases is two, and the two elastic telescopic bases are fixedly mounted on the bottom inner wall of the crimping groove, the number of the lower dies is the same as the number of the elastic telescopic bases and are arranged one-to-one, the two lower dies are respectively fixedly mounted on the output shafts of the two elastic telescopic bases, the portal frame is fixedly mounted on the crimping base, the hydraulic rod is fixedly mounted on the portal frame, the number of the upper dies is the same as the number of the lower dies and are arranged one-to-one, and the two upper dies are fixedly mounted on the output shaft of the hydraulic rod.

[0015] Preferably, the conveying structure includes two conveying wheels; the two conveying wheels are rotatably mounted on the top surface of the crimping base, the grooves on the outer circumference of the two conveying wheels form a conveying channel, and a conveying motor for driving the conveying wheels to rotate is also installed on the crimping base.

[0016] Preferably, the traction structure includes a multi-section telescopic rod and a mechanical claw; the multi-section telescopic rod is fixedly mounted on the crimping base, and the mechanical claw is fixedly mounted on the output shaft of the multi-section telescopic rod, and the multi-section telescopic rod can drive the mechanical claw to pass through two annular blocks to reach the crimping station.

[0017] Preferably, a placement groove is provided on the crimping base, and the placement groove is located between the annular cutting structure and the traction structure.

[0018] The fully automatic wire harness crimping machine for automobile wire harness connection proposed by the present invention has the following beneficial effects: through the provision of a crimping base, a crimping structure, a ring cutting structure, a conveying structure and a traction structure, when performing a crimping operation, the elastic rubber ring in the ring cutting structure can limit the position of the cable and then perform the ring cutting operation, thereby ensuring the ring cutting quality of the cable insulation sheath and reducing the situation of cutting the wire core metal wire. In addition, it can also reduce the situation where the wire core metal wire cannot be completely wrapped by the terminal, thereby ensuring the crimping quality of the wire harness, thereby reducing the occurrence of wire harness failures during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a fully automatic wire harness crimping machine for connecting automotive wire harnesses proposed by the present invention;

[0020] Figure 2 A fully automatic wire harness crimping machine for connecting automotive wire harnesses proposed by the present invention Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 A side sectional view of a fully automatic wire harness crimping machine for connecting automotive wire harnesses proposed by the present invention;

[0022] Figure 4A fully automatic wire harness crimping machine for connecting automotive wire harnesses proposed by the present invention Figure 3 Enlarged view of point B in the middle;

[0023] Figure 5 A cross-sectional view of the structure of the adjustment assembly when the elastic rubber ring is accommodated in the annular block in a fully automatic wire harness crimping machine for connecting automobile wire harnesses proposed by the present invention;

[0024] Figure 6 A cross-sectional view of the structure of the adjustment component when the elastic rubber ring restricts the cable in a fully automatic wire harness crimping machine for connecting automobile wire harnesses proposed by the present invention;

[0025] Figure 7 A schematic diagram of the positions of a gear ring, a transmission gear, an execution gear and a rocker arm in a fully automatic wire harness crimping machine for connecting automotive wire harnesses proposed by the present invention;

[0026] Figure 8 A schematic diagram of the positions of the annular electric slide rail, the electric push rod and the annular cutting blade on the side of the annular block in a fully automatic wire harness crimping machine for connecting automobile wire harnesses proposed by the present invention;

[0027] Fig. 9 This is a structural cross-sectional view of a clamping assembly in a ring block in a fully automatic wire harness crimping machine for connecting automobile wire harnesses proposed by the present invention;

[0028] Fig.10 The present invention provides a schematic structural diagram of terminals and strip metal in a fully automatic wire harness crimping machine for connecting automotive wire harnesses.

[0029] In the figure: 1. Crimping base; 2. Feeding limit channel; 3. Annular block; 4. Elastic rubber ring; 5. Annular cutting blade; 6. Gear ring; 7. Transmission gear; 8. Execution gear; 9. Rocker arm; 10. Annular electric slide rail; 11. Electric push rod; 12. Cylinder; 13. Clamping block; 14. Elastic telescopic base; 15. Lower die; 16. Door frame; 17. Hydraulic rod; 18. Upper die; 19. Conveying wheel; 20. Multi-section telescopic rod; 21. Mechanical claw; 22. Placement slot. DETAILED DESCRIPTION

[0030] Reference Figure 1-Figure 10 The present invention provides a fully automatic wire harness crimping machine for automobile wire harness connection, comprising a crimping base 1, a crimping structure, a ring cutting structure, a conveying structure and a traction structure. The top surface of the crimping base 1 is provided with a crimping groove, the crimping structure is installed in the crimping groove, and the crimping structure is used to crimp the wire harness and the terminal together; Fig.10As shown in the figure, two vertically arranged metal sheets are fixedly connected on both sides of the terminal, two of which are crimped and wrapped on the insulating outer skin of the cable, and the other two metal sheets are crimped and wrapped on the metal wire core of the cable. The ends of the terminals are fixedly connected to a piece of strip metal through connecting pieces, which can facilitate the transportation of the terminals. During crimping, the connection between the terminal and the strip metal will be torn off, and a feeding limit channel 2 is provided on the inner wall of the crimping groove, through which the terminal can be transported to the crimping station of the crimping structure; in actual situations, the strip metal is in the feeding limit channel 2, and the terminal is located in the crimping groove, and the strip metal is transported by existing conveying devices such as conveyor belts and chains to move in the feeding limit channel 2, so that the terminal reaches the specified position, and at the same time, during the crimping process, the strip metal is stuck in the feeding limit channel 2, and the strip metal will not be separated from the feeding limit channel 2 to the crimping groove. This part is the existing technology and no redundant introduction is made for it.

[0031] like Figure 1 and Figure 2 As shown in the figure, the conveying structure is used to convey the wire harness to the crimping station of the crimping structure; the crimping structure is a prior art, which is used to crimp the metal sheets on both sides of the terminal to the end of the cable, and at the same time pull the terminal off the strip metal, so that the terminal and the cable are integrated.

[0032] In the current cable and terminal crimping process, the insulation sheath at the end of the cable is stripped off by mechanical equipment, and then the cable is picked up by a robot and placed from top to bottom in the U-shaped groove formed by the vertical metal sheets on both sides of the terminal. However, when the metal wires in the wire core are scattered, when it is placed from top to bottom, some of the metal wires may be separated by the vertical metal sheets on the outside of the U-shaped groove. During the crimping process, the metal sheets are bent inward to wrap the wire core, but the wire core on the outside of the U-shaped groove cannot be wrapped by the metal sheets. The number of wrapped metal wires may be too small, resulting in insufficient firmness of the terminal crimping, which is prone to loosening and falling off. Poor contact may also occur during use (the terminal fails to fully cover the wire core). All metal wires will cause some metal wires to not contact the terminals, resulting in insufficient contact area, increased contact resistance, and affecting the stability and efficiency of the circuit); increased resistance (since the metal wires are not completely wrapped, the resistance of the crimping point will increase, which may cause the line to heat up and affect the performance and life of the equipment); signal interference (in high current or high voltage applications, incompletely crimped metal wires may cause electrical failures or even fire and other safety issues); safety risks (the terminal fails to completely wrap the metal wire, which may cause a loose connection and easily loosen during use, resulting in disconnection) and other issues. Therefore, it is necessary to solve the problem of placing the metal core of the wire on the outside of the U-shaped groove when placing the cable.

[0033] like Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown in the figure, the ring cutting structure is used to cut off the insulating rubber skin at the end of the wire harness. The ring cutting structure includes a ring block 3, an elastic rubber ring 4, a ring cutting blade 5, an adjustment component, a drive component and a clamping component. The number of the ring blocks 3 is two, and the two ring blocks 3 are fixedly mounted on the crimping base 1. The axes of the two ring blocks 3 coincide with each other, and there is a gap between the two ring blocks 3. The adjustment component is used to adjust the opening size of the elastic rubber ring 4, and the center point of the elastic rubber ring 4 is always on the axis of the ring block 3. The drive component is used to drive the ring cutting blade 5 to make a circular motion on the side of the ring block 3; the traction structure is used The conveying structure can also pull the end of the wire harness stripped of the insulating rubber skin back to the crimping station of the crimping structure. In the specific operation, one end of the cable is inserted into the conveying structure, and the conveying structure conveys one end of the cable to the crimping station (the end of the cable is inserted into the U-shaped groove on the terminal). The traction structure grasps the end of the cable and pulls the cable into the ring block 3 (through the second ring block 3) to ensure the ring cutting length of the cable. The opening size of the elastic rubber ring 4 is adjusted by the adjustment component so that the elastic rubber ring 4 is Figure 5 The status in becomes Figure 6 The opening size of the elastic rubber ring 4 becomes smaller, and the position of the cable in the annular block 3 is restricted, so that the axis of a section of the cable in the two annular blocks 3 coincides with the bearing of the annular block 3, and then the cable is clamped by the clamping assembly, so that the position of a section of the cable between the two annular blocks 3 remains unchanged, and then the driving assembly drives the circular cutting blade 5 to cut an incision on the insulating sheath at the end of the cable. Because the circular cutting blade 5 performs a circular motion, in order to reduce the possibility of cutting the metal wire of the cable core, it is necessary to ensure that the axis of the cable and the axis of the circle formed by the motion trajectory of the circular cutting blade 5 coincide, thereby reducing the possibility of cutting thick wires. In the case of thin cutting, the traction structure will pull the cut insulation sheath off the cable, and then the conveying structure will pull back the cable with the insulation sheath stripped off the end (because when the cable is pulled back, even if the core wires are open, when they touch the vertical metal sheets on both sides of the terminal, the core wires are blocked by the metal sheets, and the metal sheets will straighten the core wires, so that the core wires are all located in the second U-shaped groove), thereby reducing the possibility of the core wires leaking out of the U-shaped groove and being unable to be fully crimped, so that the insulation sheath end of the cable is located in the first U-shaped groove ( Fig.10 The first U-shaped groove is close to the metal strip, and the exposed part of the wire core is located in the second U-shaped groove ( Fig.10The second U-shaped groove is farthest away from the metal strip in the middle), and then the crimping structure crimps the terminal and the cable together to form a wire harness, thereby ensuring the quality of the crimping.

[0034] like Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown in the figure, the adjustment component includes a gear ring 6, a transmission gear 7, an execution gear 8 and a rocking arm 9; a rotating groove is opened in the annular block 3, the gear ring 6 is rotatably installed in the rotating groove, the number of the transmission gears 7 is at least four, the four transmission gears 7 are arranged in a cross shape, and the four transmission gears 7 are all meshed with the inner ring of the gear ring 6, the number of the execution gears 8 is the same as the number of the transmission gears 7 and is arranged one by one, the execution gear 8 is rotatably installed in the rotating groove, and the execution gear 8 is meshed with the transmission gear 7, one end of the rocking arm 9 is fixedly connected to the execution gear 8, and the elastic rubber ring 4 is installed in the shape of a regular quadrilateral on the four rocking arms 9 At the end, the elastic rubber ring 4 can be received in the rotating groove. In actual operation, the motor is operated, and a driving gear is fixedly installed on the output shaft of the motor. The driving gear and the gear ring 6 are meshed, and then the gear ring 6 drives four transmission gears 7 to rotate, and the four transmission gears 7 respectively drive four execution gears 8, and then the four execution gears 8 drive four rocking arms 9 to rotate, so as to control the opening size of the elastic rubber ring 4, thereby limiting the position of the cable. When cutting, the cutting blade 5 can cut the insulating sheath evenly when cutting the insulating sheath of the cable, thereby reducing the situation where the core metal wire is cut due to excessive cutting depth.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 and Fig. 9 As shown in the figure, the clamping assembly includes a cylinder 12 and a clamping block 13; there are two cylinders 12, and the inner wall of the annular block 3 is symmetrically provided with a receiving groove, the cylinder 12 is fixedly installed in the receiving groove, and the clamping block 13 is fixedly installed on the output shaft of the cylinder 12, and the clamping block 13 can be stored in the receiving groove; a V-shaped groove is provided on the side where the two clamping blocks 13 are close to each other, and a soft anti-slip pad is bonded to the inner wall of the V-shaped groove. After the elastic rubber ring 4 limits the position of the cable, the cylinder 12 works, and the output shaft of the cylinder 12 drives the clamping block 13 to rest on the outer skin of the cable. The cable is clamped by four clamping blocks 13, which increases the firmness of the cable position and reduces the rotation during the ring cutting process, thereby ensuring the effect of the ring cutting.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8As shown in the figure, the driving assembly includes an annular electric slide rail 10 and an electric push rod 11; the annular electric slide rail 10 is installed on the side of one of the annular blocks 3 close to the other annular block 3, the axis of the annular electric slide rail 10 coincides with the axis of the annular block 3, the electric push rod 11 is fixedly installed on the slider of the annular electric slide rail 10, and the circular cutting blade 5 is fixedly installed on the output shaft of the electric push rod 11. When the cable is circularly cut, the electric push rod 11 works. According to the diameter of the cable and the thickness of the insulating sheath, the output shaft of the electric push rod 11 extends to a suitable length, driving the circular cutting blade 5 to approach the insulating sheath of the cable, thereby cutting a cutting edge on the insulating sheath, and then the annular electric slide rail 10 drives the electric push rod 11 and the circular cutting blade 5 to make a circular motion, so that the circular cutting blade 5 cuts a cutting edge on the insulating sheath, and then the traction structure pulls off the circularly cut insulating sheath.

[0037] like Figure 1 and Figure 2 As shown in, the crimping structure includes an elastic telescopic base 14, a lower die 15, a door frame 16, a hydraulic rod 17 and an upper die 18; the number of the elastic telescopic base 14 is two, the elastic telescopic base 14 is an elastic telescopic rod, a telescopic cylinder, a telescopic rod, and a lifting spring. The telescopic rod slides and retracts in the telescopic cylinder, and the lifting spring is in the telescopic cylinder. The lifting spring can drive the telescopic rod to extend in the telescopic cylinder. The lower die 15 is fixedly connected to the top of the telescopic rod. Under normal circumstances, the terminal is placed on the top surface of the lower die 15. The two elastic telescopic bases 14 are fixedly installed on the bottom inner wall of the crimping groove. The number of the lower die 15 is the same as the number of the elastic telescopic bases 14 and is arranged one by one. The two lower dies 15 are fixedly installed on the output shafts of the two elastic telescopic bases 14, respectively. The frame 16 is fixedly mounted on the crimping base 1, and the hydraulic rod 17 is fixedly mounted on the door frame 16. The number of upper dies 18 is the same as the number of lower dies 15 and they are arranged one by one. The two upper dies 18 are fixedly mounted on the output shaft of the hydraulic rod 17. During crimping, the hydraulic rod 17 drives the upper die 18 to descend. When the upper die 18 is in the descending process, the top ends of the metal sheets on both sides of the terminal follow the inner wall of the die groove of the upper die 18 to slide and deform, squeeze and deform the metal sheets and wrap the core metal wire. When the upper die 18 is in the descending process, the terminal and the lower die 15 are subjected to the downward pressure of the upper die 18, so that the lower die 15 and the terminal also descend, so that the telescopic rod retracts in the telescopic cylinder, and when the terminal descends, the connection between it and the strip metal is torn off, thereby separating the terminal from the strip metal.

[0038] like Figure 1As shown in the figure, the conveying structure includes two conveying wheels 19; the two conveying wheels 19 are rotatably installed on the top surface of the crimping base 1, and the grooves on the outer periphery of the two conveying wheels 19 form a conveying channel. The crimping base 1 is also equipped with a conveying motor for driving the conveying wheels 19 to rotate. The outer periphery of the conveying wheel 19 is provided with a conveying groove. The two conveying wheels 19 are spliced ​​together to form a conveying channel. The two conveying wheels 19 rotate to convey the cable forward through the friction between the cable sheath. In actual situations, the crimping base 1 is preferably opened with a straight channel, and the inner walls on both sides of the straight channel begin to have conveying installation grooves. The two conveying wheels 19 are rotatably installed in the two conveying installation grooves, respectively, so as to facilitate the insertion of the cable end into the gap between the metal sheets on both sides of the terminal.

[0039] like Figure 1 and Figure 3 As shown in, the traction structure includes a multi-section telescopic rod 20 and a mechanical claw 21; the multi-section telescopic rod 20 is fixedly installed on the crimping base 1, and the mechanical claw 21 is fixedly installed on the output shaft of the multi-section telescopic rod 20. The multi-section telescopic rod 20 can drive the mechanical claw 21 to pass through the two annular blocks 3 to reach the crimping station. The multi-section telescopic rod 20 drives the mechanical claw 21 to pass through the two annular blocks 3, and the mechanical claw 21 grasps the end of the cable, thereby pulling the end of the cable between the two annular blocks 3 for ring cutting. The mechanical claw 21 is a prior art and no redundant introduction is made to it. After the crimping is completed, the mechanical claw 21 continues to grasp the terminal to pull out the wiring harness. When the wiring harness passes through the conveying wheel 19, the conveying wheel 19 will rotate the corresponding number of circles, so as to calculate whether the length of the cable is qualified according to the number of circles rotated by the conveying wheel 19.

[0040] like Figure 1 and Figure 3 As shown in the figure, a placement groove 22 is opened on the crimping base 1, and the placement groove 22 is located between the ring cutting structure and the traction structure. The ring cut insulation sheath and the crimped wire harness are pulled by the traction structure to the top of the placement groove 22 and put down, which is convenient for the discharge of the wire harness and the processing of the wire harness.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic wire harness crimping machine for automotive wire harness connection, characterized in that: It comprises a crimping base (1), a crimping structure, a ring cutting structure, a conveying structure and a pulling structure, wherein a crimping groove is provided on the top surface of the crimping base (1), the crimping structure is installed in the crimping groove, and the crimping structure is used to crimp the wire harness and the terminal together; The inner wall of the crimping groove is provided with a feeding limiting channel (2), and the terminal can be conveyed to the crimping station of the crimping structure through the feeding limiting channel (2); The conveying structure is used to convey the wire harness to the crimping station of the crimping structure; The circular cutting structure is used to cut off the insulating rubber skin at the end of the wire harness, and the circular cutting structure comprises a circular block (3), an elastic rubber ring (4), a circular cutting blade (5), an adjustment component, a driving component and a clamping component. The number of the circular blocks (3) is two, and the two circular blocks (3) are fixedly mounted on the crimping base (1). The axes of the two circular blocks (3) coincide with each other, and there is a gap between the two circular blocks (3). The adjustment component is used to adjust the opening size of the elastic rubber ring (4), and the center point of the elastic rubber ring (4) is always on the axis of the circular block (3). The driving component is used to drive the circular cutting blade (5) to perform circular motion on the side of the circular block (3); The traction structure is used to grasp the end of the wire harness and pull the end of the wire harness into the annular block (3) for circular cutting; The conveying structure can also pull the end of the wire harness stripped of the insulating rubber skin back to the crimping station of the crimping structure; The adjustment component comprises a gear ring (6), a transmission gear (7), an execution gear (8) and a rocking arm (9); a rotation groove is provided in the annular block (3); the gear ring (6) is rotatably mounted in the rotation groove; the number of the transmission gears (7) is at least four; the four transmission gears (7) are arranged in a cross shape; and the four transmission gears (7) are all meshed with the inner ring of the gear ring (6); the number of the execution gears (8) is the same as the number of the transmission gears (7) and is arranged in a one-to-one correspondence; the execution gears (8) are rotatably mounted in the rotation groove; and the execution gears (8) are meshed with the transmission gears (7); one end of the rocking arm (9) is fixedly connected to the execution gear (8); the elastic rubber ring (4) is mounted in a regular quadrilateral at the ends of the four rocking arms (9); and the elastic rubber ring (4) can be received in the rotation groove; The driving assembly comprises an annular electric slide rail (10) and an electric push rod (11); the annular electric slide rail (10) is mounted on a side of one of the annular blocks (3) close to another annular block (3), the axis of the annular electric slide rail (10) coincides with the axis of the annular block (3), the electric push rod (11) is fixedly mounted on a slider of the annular electric slide rail (10), and the circular cutting blade (5) is fixedly mounted on an output shaft of the electric push rod (11); The clamping assembly comprises a cylinder (12) and a clamping block (13); the number of the cylinders (12) is two, the inner wall of the annular block (3) is symmetrically provided with receiving grooves, the cylinder (12) is fixedly mounted in the receiving groove, the clamping block (13) is fixedly mounted on the output shaft of the cylinder (12), and the clamping block (13) can be received in the receiving groove; A V-shaped groove is provided on one side of the two clamping blocks (13) that are close to each other, and a soft anti-slip pad is bonded to the inner wall of the V-shaped groove.

2. The fully automatic wire harness crimping machine for automobile wire harness connection according to claim 1, characterized in that: The crimping structure comprises an elastic telescopic base (14), a lower die (15), a portal frame (16), a hydraulic rod (17) and an upper die (18); the number of the elastic telescopic base (14) is two, and the two elastic telescopic bases (14) are fixedly mounted on the bottom inner wall of the crimping groove; the number of the lower dies (15) is the same as the number of the elastic telescopic bases (14) and are arranged in a one-to-one correspondence; the two lower dies (15) are respectively fixedly mounted on the output shafts of the two elastic telescopic bases (14); the portal frame (16) is fixedly mounted on the crimping base (1); the hydraulic rod (17) is fixedly mounted on the portal frame (16); the number of the upper dies (18) is the same as the number of the lower dies (15) and are arranged in a one-to-one correspondence; the two upper dies (18) are fixedly mounted on the output shaft of the hydraulic rod (17).

3. The fully automatic wire harness crimping machine for automobile wire harness connection according to claim 1, characterized in that: The conveying structure comprises two conveying wheels (19); the two conveying wheels (19) are rotatably mounted on the top surface of the crimping base (1); grooves on the outer circumferences of the two conveying wheels (19) form a conveying channel; and a conveying motor for driving the conveying wheels (19) to rotate is also mounted on the crimping base (1).

4. The fully automatic wire harness crimping machine for automobile wire harness connection according to claim 1, characterized in that: The traction structure comprises a multi-section telescopic rod (20) and a mechanical claw (21); the multi-section telescopic rod (20) is fixedly mounted on a crimping base (1), and the mechanical claw (21) is fixedly mounted on an output shaft of the multi-section telescopic rod (20); the multi-section telescopic rod (20) is capable of driving the mechanical claw (21) to pass through two annular blocks (3) to reach a crimping station.

5. The fully automatic wire harness crimping machine for automobile wire harness connection according to claim 1, characterized in that: The crimping base (1) is provided with a placement groove (22), and the placement groove (22) is located between the annular cutting structure and the traction structure.

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