Crimping equipment for wire harness connection and working method thereof

Abstract

The invention discloses crimping equipment for wire harness connection and a working method thereof, and particularly relates to the technical field of wire harness production. The end part of a wire rod is pulled out, so that a wire core enters a space between two correction plates, the position of the wire core is captured by independently controlling the corresponding correction plates to slide on a fixed seat, and when the wire core enters an opened moving block, the moving block moves to the fixed seat; correcting air cylinders drive and control corresponding moving blocks to be closed, the position of a wire core in the vertical direction is adjusted, the position of the wire core in the horizontal direction is corrected through sliding of a correcting plate on a corresponding second linear sliding rail, correction and straightening of the wire cores in different directions are adapted, and then plug-in terminals are loaded through a pressing and holding unit in a loading and moving assembly and then are conveyed to a conveying assembly. The rotating cylinder rotates clockwise to drive the clamping unit and the plug-in terminal to change angles, during rotation, the annular groove and the ball head slide, and the reciprocating cylinder pushes the clamping cylinder and the plug-in terminal to approach the direction of the wire core, so that butt joint installation of the wire core and the plug-in terminal is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness production, in particular to a crimping device for wire harness connection and a working method thereof. Background Art

[0002] Wire crimping is a key process in cable assembly. It involves applying mechanical force to tightly connect wires and terminals to achieve electrical continuity or a secure connection. Crimping involves stripping the wire's insulation to allow the terminal to snap onto the conductor. During the crimping process, the die and crimping equipment apply a certain amount of mechanical force to tightly bond the terminal to the wire.

[0003] After searching, the invention patent with publication number CN118920226A discloses a wire harness crimping machine, which can shield the crimping gap between the lower crimping module and the upper crimping module of the wire harness crimping, ensuring that contact is blocked through the protective cover plate when the wire harness is crimped, thereby preventing the staff's hands from touching the upper crimping module and the lower crimping module.

[0004] However, the position of the wire core cannot be guaranteed. The wire core is offset when crimped with the power terminal, resulting in crimping installation errors. On the one hand, it affects the signal transmission quality and makes the product quality low. On the other hand, the error requires multiple debugging, resulting in longer processing time and low production efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a wire harness crimping device and a working method thereof to solve the problems mentioned in the above background technology.

[0006] The technical problems mainly solved by the present invention are: In the existing solution, the position of the wire core cannot be guaranteed, and the wire core is offset when crimped with the power terminal, resulting in installation errors during crimping.

[0007] The present invention can be achieved through the following technical solutions: A crimping device for connecting wire harnesses, comprising an L-shaped fixing frame mounted on the edge of a top surface of a processing table, the processing table being provided with a support and pressing assembly for supporting a wire, a fixing seat being provided below the top of the fixing frame, a correction assembly for correcting a single wire core in the wire being slidably mounted on the lower surface of the fixing seat, a sheath for docking with a plug-in terminal being sleeved on the outer side of the end of the wire, the plug-in terminal and the wire being kept at the same center of a circle; The correction assembly includes a correction plate, the inner side of which is mounted with two correction cylinders. The driving end of each correction cylinder is mounted with a moving block that contacts the corresponding wire core and corrects the deviation. A guide rail is provided on one side of the fixed seat, and a loading and moving assembly for clamping the plug-in terminal is provided on the outer sliding surface of the guide rail. A hot pressing assembly for hot-melting the sheath and the wire end is provided on the other side of the fixed seat. The material loading and moving assembly includes a rotary cylinder, a clamping cylinder is fixedly provided on the driving end of the rotary cylinder, an outer guard plate is fixedly sleeved on the outside of the clamping cylinder, and a clamping unit is installed on the lower surface of the clamping cylinder, an annular groove is provided on the outer edge of the outer guard plate, a ball head is movably installed inside the annular groove, a reciprocating cylinder is installed on the lower surface of the fixed frame, and the pushing end of the reciprocating cylinder is fixed to the surface of the ball head; The hot pressing assembly comprises two hot pressing blocks driven by an adjusting cylinder, and the hot pressing blocks are tightly pressed against one side surface of the sheath.

[0008] A further technical improvement of the present invention is that the clamping unit includes a sliding plate, a clamping claw 2 is fixedly provided at the end of the lower surface of the sliding plate, and a linear slide rail 1 is provided on the lower surface of the sliding plate, and a clamping claw 1 is slidably provided on the outside of the linear slide rail 1. Both the clamping claw 1 and the clamping claw 2 are arc-shaped structures, the inner side surface of the clamping claw 1 abuts the stepped end surface of the plug-in terminal, and the inner wall surface of the clamping claw 2 contacts one end surface of the plug-in terminal.

[0009] A further technical improvement of the present invention is that: a slot is provided on the stepped end face of the plug-in terminal, and a socket is provided on the other end face of the plug-in terminal, a V-shaped conductive end is installed inside the socket, and the conductive end contacts the wire core, and a screw hole is provided on the outer surface of the plug-in terminal that communicates with the socket, and a wire cap is installed in the screw hole.

[0010] A further technical improvement of the present invention is that: the inner wall surface of the slot is provided with an outwardly protruding positioning ring cavity, and the other side surface of the sheath is provided with an outwardly protruding outer ring along the insertion position, and the outer ring is engaged with the positioning ring cavity.

[0011] A further technical improvement of the present invention is that: the end surface of the correction plate is provided with a convex seat, the bottom surface of the fixed seat is provided with two linear slide rails 2, and the correction plate slides on the corresponding linear slide rails 2.

[0012] A further technical improvement of the present invention is that an electric push rod is installed on the inner wall surface of the boss, and a sliding plate is slidably provided on the inner wall surface of the boss, two rotating columns are installed on the inner side surface of the sliding plate, and the two rotating columns are synchronously driven by belts. The rotating columns are adapted to the wire pressing cap, and the outer side surface of the sliding plate is provided with a limiting sliding rod that moves in the correction plate.

[0013] A further technical improvement of the present invention is that a transfer clamp for conveying plug terminals is slidably provided on one side of the clamping unit.

[0014] A further technical improvement of the present invention is that the supporting and pressing assembly includes a flip seat rotatably mounted on the top surface of the processing table, two sets of brackets for supporting the wire racks are mounted on the top surface of the flip seat, the upper end surfaces of the brackets are provided with mounting rods, the end surfaces of the mounting rods are penetrated by a motion groove, and a pressing unit in contact with the wire is slidably mounted inside the motion groove; The bottom surface of the mounting rod is hinged with an electric push rod 2, and the holding unit includes a support block. The upper end surface of the support block is connected to a pressing block through a lifting cylinder, and a limiting column sliding in a motion groove is fixedly provided on one side of the support block. The pushing end of the electric push rod 2 is hinged to the limiting column.

[0015] A method for operating a crimping device for connecting a wire harness comprises the following steps: Step 1: A set of brackets supports the wire rack and rotates with the flip seat. The support and pressing assembly pulls the wire so that the wire core enters between the two correction plates. The sheath is then put onto the end of the wire with the help of a robot. Step 2: When entering the correction plate, the industrial camera adjusts the position of the two correction plates on the fixed seat in real time according to the position of the wire core. At this time, the wire core enters the open motion block, and then the correction cylinder drives the corresponding motion block to close and adjust the position of the wire core; Step 3: Clamp the plug-in terminal with the first and second clamps, and change the angle of the plug-in terminal by rotating the cylinder clockwise. The plug-in terminal is concentric with the wire, and the reciprocating cylinder is used to push the loading and moving assembly to slide on the guide rail. The wire core enters the corresponding socket and contacts the conductive end. The electric push rod pushes the rotating column to tighten the wire cap, completing the connection between the wire core and the plug-in terminal. Step 4: Then, push the sheath to wrap around the outside of the wire core through the opened pressing unit. At this time, the inserted end face of the sheath enters the slot, so that the outer convex ring of the end face is engaged with the positioning ring cavity, and the sheath and the wire core end are hot-melted together by the hot pressing block to complete the crimping of the wire harness.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The end of the wire is pulled out, so that the wire core enters between the two correction plates. The corresponding correction plate is controlled individually to slide on the fixed seat to capture the position of the wire core. When the wire core enters the opened motion block, the corresponding motion block is controlled to close by the correction cylinder, and the position of the wire core in the vertical direction is adjusted. The correction plate slides on the corresponding linear slide rail 2 to correct the position of the wire core in the horizontal direction to adapt to the correction and straightening of wire cores in different directions. After the plug-in terminal is loaded through the pressing unit in the loading and moving assembly, the clamping unit and its plug-in terminal are driven to change the angle by rotating the cylinder clockwise. During rotation, the annular groove and the ball head slide, and the reciprocating cylinder pushes the clamping cylinder and the plug-in terminal toward the direction of the wire core, which facilitates the docking and installation of the wire core and the plug-in terminal, thereby improving the pressing efficiency. 2. The linear slide rail drives the movement of the clamping jaw 1 to change the distance between the clamping jaw 1 and the clamping jaw 2 to adapt to the press-fitting of plug-in terminals of different lengths. When clamping, the clamping jaw 1 presses the stepped end face of the plug-in terminal, and the clamping jaw 2 clamps the end face of the plug-in terminal. After the terminal is pushed into contact with the wire core, the electric push rod 1 on the side pushes the sliding plate to slide in the convex seat. The sliding plate drives the rotating column to move outward and contact the wire cap. The two wire caps on one side are tightened at the same time by the synchronously driven rotating column, so that the wire core and the conductive end are firmly connected. 3. Then the pressing unit in the support and pressing assembly releases the pressure on the wire, and the electric push rod 2 pushes the limit column to move in the straight section of the motion groove, which drives the pressing block and the support block to jointly push the sheath to wrap around the outside of the wire core. At this time, the insertion end face of the sheath is sleeved with the stepped end face of the electrical terminal, that is, the outer convex ring protrudes outward and engages with the positioning ring cavity, while the other end of the sheath is still at the end of the wire. By adjusting the cylinder, the two hot pressing blocks are driven closer to the center, and the sheath and the wire end are hot-melted together; 4. By setting up two groups of brackets, when one group of brackets is performing the crimping work of the wire and the power terminal, the other group of brackets takes over to complete the pressing of the wire and the power terminal through the rotation of the flip seat. The wire after crimping is taken out and reloaded into the wire rack. The processing is uninterrupted and continuous during work, which reduces waiting and delays, helps to improve production efficiency and reduce time waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 Schematic diagram of the external structure of the present invention; Figure 2 For the present invention Figure 1 A partial enlarged view of point A in the middle; Figure 3 Schematic diagram of the installation structure of the fixing base and the correction plate of the present invention; Figure 4 This is a schematic structural diagram of the plug-in terminal of the present invention; Figure 5 Schematic diagram of the installation structure of the clamping cylinder and the reciprocating cylinder of the present invention; Figure 6 It is a structural schematic diagram of the outer guard plate of the present invention; Figure 7 For the present invention Figure 1 A partial enlarged view of point B in the middle.

[0019] Figure: 1, processing table; 2, fixed frame; 3, transfer clamp; 4, flip seat; 5, bracket; 6, fixed seat; 7, correction plate; 8, convex seat; 9, sheath; 10, outer convex ring; 11, clamping cylinder; 12, sliding plate; 13, linear slide rail 1; 14, clamping jaw 1; 15, clamping jaw 2; 16, linear slide rail 2; 17, electric push rod 1; 18, limit slide; 19, sliding plate; 20, rotating Moving column; 21. Correction cylinder; 22. Moving block; 23. Socket; 24. Conductive end; 25. Slot; 26. Positioning ring cavity; 27. Guide rail; 28. Rotating cylinder; 29. ​​Outer guard plate; 30. Reciprocating cylinder; 31. Ball head; 32. Ring groove; 33. Hot pressing block; 34. Pressing block; 35. Support block; 36. Mounting rod; 37. Electric push rod 2; 38. Moving groove; 39. Limit column. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-Figure 7As shown, the present invention provides a crimping device for connecting a wire harness, comprising a processing table 1, a fixing frame 2 of an L-shaped structure is installed on the top edge of the processing table 1, and a supporting and pressing assembly for supporting the wire is provided on the processing table 1, a fixing seat 6 is provided below the top of the fixing frame 2, a correction assembly for correcting a single wire core in the wire is slidably installed on the lower surface of the fixing seat 6, a sheath 9 for docking with a plug-in terminal is sleeved on the outer side of the end of the wire, the plug-in terminal and the wire maintain the same center of a circle, the correction assembly comprises a correction plate 7, two correction cylinders 21 are installed on the inner side of the correction plate 7, the driving end of each correction cylinder 21 is installed with a moving block 22 that contacts the corresponding wire core and corrects the deviation, and a guide is provided on one side of the fixing seat 6. Rail 27, the outer sliding of the guide rail 27 is provided with a loading and moving assembly for clamping the plug-in terminal, and the other side of the fixed seat 6 is provided with a hot pressing assembly for hot melting the sheath 9 and the wire end. The loading and moving assembly includes a rotating cylinder 28, and the driving end of the rotating cylinder 28 is fixedly provided with a clamping cylinder 11. The outer surface of the clamping cylinder 11 is fixedly sleeved with an outer guard plate 29, and a clamping unit is installed on the lower surface of the clamping cylinder 11. The outer edge of the outer guard plate 29 is provided with an annular groove 32, and a ball head 31 is movably installed inside the annular groove 32. A reciprocating cylinder 30 is installed on the lower surface of the fixed frame 2, and the pushing end of the reciprocating cylinder 30 is fixed to the surface of the ball head 31; the hot pressing assembly includes two hot pressing blocks 33 driven by the adjusting cylinder, and the hot pressing blocks 33 It is tightly pressed against the surface of one side of the sheath 9. When the end of the wire is close to the inner side of the two correction plates 7, the sheath 9 is put on the end of the wire with the help of a manipulator, and the image of the wire core is captured by the industrial camera on the top bottom surface of the fixing frame 2. When the wire core deviates from the plug-in position, the corresponding correction plate 7 is individually controlled to slide on the fixing seat 6 to adapt to the correction of wire cores in different directions. Initially, the corresponding motion block 22 is in the open state, which is convenient for the wire core to pass through. After that, the motion block 22 is driven to close by the corresponding correction cylinder 21, so that the wire core is in the specified position, which is convenient for the docking and plugging of the wire core and the plug-in terminal. When plugging in the plug-in terminal, the plug-in terminal is clamped by the clamping unit, and then rotated 90 degrees clockwise by the rotating cylinder 28 to drive The clamping unit and its plug-in terminal change their angles. At this time, the plug-in terminal and the wire are at the same center. During rotation, since the outer guard plate 29 rotates together with the clamping cylinder 11, the annular groove 32 and the ball head 31 slide to ensure that the pushing function can still be achieved during rotation, that is, the reciprocating cylinder 30 pushes the clamping cylinder 11 and the plug-in terminal toward the wire core, and always slides along the guide rail 27 when approaching. When the connection is completed, the sheath 9 is pushed by the support and pressing assembly, and one end of the sheath 9 is docked with the plug-in terminal, and the other end of the sheath 9 is still at the end of the wire. The two hot pressing blocks 33 are in the open state, and the two hot pressing blocks 33 are driven toward the center by the adjusting cylinder to heat-melt the sheath 9 and the wire end together.

[0022] See Figure 2 and Figure 5The cam 14 is provided with a plurality of guide rails 13 on the bottom surface of the cam 12, and the guide rails 13 are provided with a plurality of guide rails 14 on the bottom surface of the cam 12. The guide rails 13 are provided with a plurality of guide rails 13 on the bottom surface of the cam 12, and the guide rails 13 are provided with a plurality of guide rails 13 on the bottom surface of the cam 12. The guide rails 13 are provided with a plurality of guide rails 13 on the bottom surface of the cam 12, and the guide rails 13 are provided with a plurality of guide rails 13 on the bottom surface of the cam 12. The guide rails 13 are provided with a plurality of guide rails 13 on the bottom surface of the cam 12, and the guide rails 13 are provided with a plurality of guide rails 13 on the bottom surface of the cam 12. Figure 2 As shown, the angle of the clamping unit is changed by rotating the rotary cylinder 28 to facilitate the docking of the wire core and the electrical terminal.

[0023] See Figure 4 As shown, a slot 25 is provided on the stepped end face of the plug-in terminal, and a socket 23 is provided on the other end face of the plug-in terminal. A V-shaped conductive end 24 is installed inside the socket 23, and the conductive end 24 contacts the wire core. A screw hole communicating with the socket 23 is provided on the outer surface of the plug-in terminal, and a wire cap is installed in the screw hole. The wire core after correction and deflection correction enters through the socket 23 and contacts the conductive end 24.

[0024] See Figure 3 As shown, the end face of the correction plate 7 is provided with a protrusion 8, and the bottom surface of the fixed seat 6 is provided with two linear slide rails 16. The correction plate 7 slides on the corresponding linear slide rails 16, and the sliding distance of each correction plate 7 is controlled individually to adapt to the correction and straightening of wire cores in different directions.

[0025] See Figure 2 and Figure 3 As shown, an electric push rod 17 is installed on the inner wall surface of the boss 8, and a sliding plate 19 is slidingly provided on the inner wall surface of the boss 8. Two rotating columns 20 are installed on the inner side surface of the sliding plate 19. The two rotating columns 20 are synchronously driven by belts. The rotating columns 20 are adapted to the wire caps. The outer side surface of the sliding plate 19 is provided with a limiting slide bar 18 that moves in the correction plate 7. When the wire core contacts the conductive end 24, the electric push rod 17 pushes the sliding plate 19 to slide in the boss 8. The sliding plate 19 drives the rotating column 20 to move outward and contact the wire cap. The two wire caps on one side are tightened at the same time by the synchronously driven rotating column 20, so that the wire core and the conductive end 24 are connected and tightened.

[0026] See Figure 2 and Figure 4As shown, the inner wall surface of the slot 25 is provided with a positioning ring cavity 26 protruding outward, and the other side surface of the sheath 9 is provided with an outer convex ring 10 protruding outward along the insertion position. The outer convex ring 10 is engaged with the positioning ring cavity 26. When the wire core is docked with the power terminal, the wire cap is fastened to the conductive end 24, and then the sheath 9 is pushed toward the direction of the wire core through the support and pressing assembly. At this time, one end of the sheath 9 is inserted into the slot 25, and the outer convex ring 10 is squeezed into the slot 25. When entering the position of the positioning ring cavity 26, the outer convex ring 10 protrudes outward and engages with the positioning ring cavity 26 to complete the installation of the sheath 9 and the plug-in terminal.

[0027] See Figure 1 and Figure 7 As shown, the supporting and pressing assembly includes a turning seat 4 rotatably mounted on the top surface of the processing table 1, and two groups of brackets 5 supporting the wire rack are installed on the top surface of the turning seat 4. The upper end surface of the bracket 5 is provided with a mounting rod 36, and the end surface of the mounting rod 36 is penetrated by a moving groove 38, and a pressing unit in contact with the wire is slidably installed inside the moving groove 38; the bottom surface of the mounting rod 36 is hingedly connected to an electric push rod 2 37, and the pressing unit includes a support block 35, and the upper end surface of the support block 35 is connected to the pressing block 34 through a jacking cylinder, and one side of the support block 35 is fixedly provided with a limiting column 39 sliding in the moving groove 38, and the moving groove 38 is provided with an inclined section and a straight section. The pushing end of the electric push rod 2 37 is hinged to the limiting column 39, and the wire is supported by the wire rack and installed on the bracket 5. When one group of wires approaches the bottom of the fixed seat 6, the other group of wires is installed on the other group of brackets 5, and the end of the wire is loaded into the opened pressing block 34, and then the pressing The clamping block 34 is in contact with the support block 35, and the electric push rod 2 37 pushes the limit post 39 to move in the inclined section of the movement groove 38, driving the holding unit to move together. At this time, the end of the wire is pulled out, so that the wire core enters between the two correction plates 7. When the wire core is connected to the power terminal, the pressing block 34 and the support block 35 release the pressure on the wire, and the electric push rod 2 37 pushes the limit post 39 to move in the straight section of the movement groove 38, and the pressing block 34 and the support block 35 jointly push the sheath 9 to wrap around the outside of the wire core. At this time, the insertion end face of the sheath 9 is socketed with the stepped end face of the power terminal, and then the holding unit is reset to the initial state. After that, through the rotation of the flip seat 4, the other set of brackets 5 relays to complete the pressing of the wire and the power terminal. The wire after crimping is reloaded into the wire rack after taking the material. Uninterrupted and continuous processing during work reduces waiting and delays, which helps to improve production efficiency and reduce time waste.

[0028] A method for operating a crimping device for connecting a wire harness comprises the following steps: Step 1: A set of brackets 5 supports the wire rack and follows the rotation of the flip seat 4. The wire is pulled by the support and pressing assembly so that the core of the wire enters between the two correction plates 7. The sheath 9 is put onto the end of the wire with the help of a robot. Step 2: When entering the correction plate 7, the industrial camera adjusts the position of the two correction plates 7 on the fixed seat 6 in real time according to the position of the wire core. At this time, the wire core enters the opened motion block 22, and then the correction cylinder 21 drives the corresponding motion block 22 to close and adjust the position of the wire core; Step 3: Clamp the plug-in terminal with the clamping jaw 14 and the clamping jaw 2 15. The angle of the plug-in terminal is changed by rotating the rotary cylinder 28 clockwise. The plug-in terminal is concentric with the wire. The reciprocating cylinder 30 is used to push the loading and moving assembly to slide on the guide rail 27. The wire core enters the corresponding jack 23 and contacts the conductive end 24. The electric push rod 17 pushes the rotating column 20 to tighten the wire cap, completing the connection between the wire core and the plug-in terminal. Step 4: Then, the sheath 9 is pushed to wrap around the outside of the wire core through the opened pressing unit. At this time, the inserted end face of the sheath 9 enters the slot 25, so that the outer convex ring 10 of the end face is engaged with the positioning ring cavity 26. The sheath 9 and the end of the wire core are hot-melted together by the hot pressing block 33 to complete the crimping of the wire harness.

[0029] When the present invention is in use, the end of the wire is pulled out so that the wire core enters between the two correction plates 7. The corresponding correction plate 7 is controlled individually to slide on the fixed seat 6 to capture the position of the wire core. When the wire core enters the opened motion block 22, the correction cylinder 21 drives the corresponding motion block 22 to close, and the position of the wire core in the vertical direction is adjusted. The correction plate 7 slides on the corresponding linear slide rail 2 16 to correct the position of the wire core in the horizontal direction to adapt to the correction and straightening of wire cores in different directions. After the plug-in terminal is loaded through the pressing unit in the loading and moving assembly, the rotating cylinder 28 is used to rotate clockwise to drive the clamping unit and its plug-in terminal to change the angle. During rotation, the annular groove 32 slides with the ball head 31, and the reciprocating cylinder 30 pushes the clamping cylinder 11 and the plug-in terminal toward the direction of the wire core, which facilitates the docking and installation of the wire core and the plug-in terminal. The linear slide rail 13 drives the clamping jaw 14 to move, changing the distance between the clamping jaw 14 and the second clamping jaw 15 to adapt to the press-fitting of plug-in terminals of different lengths. When clamping, the clamping jaw 14 is used to press the stepped end face of the plug-in terminal, and the second clamping jaw 15 is used to clamp the end face of the plug-in terminal. After the power terminal is pushed into contact with the wire core, the electric push rod 17 on the side pushes the sliding plate 19 to slide in the convex seat 8. The sliding plate 19 drives the rotating column 20 to move outward and contact the wire cap. The two wire caps on one side are tightened at the same time by the synchronously driven rotating column 20, so that the wire core is firmly connected to the conductive end 24. Then, the pressing unit in the support and pressing assembly releases the pressing of the wire, and the electric push rod 37 pushes the limiting column 39 to move in the straight section of the motion groove 38, which drives the pressing block 34 and the support block 35 to jointly push the sheath 9 to wrap around the outside of the wire core. At this time, the insertion end face of the sheath 9 is sleeved with the stepped end face of the electrical terminal, that is, the outer convex ring 10 protrudes outward and engages with the positioning ring cavity 26, while the other end of the sheath 9 is still at the end of the wire. The two hot pressing blocks 33 are driven toward the center by adjusting the cylinder, and the sheath 9 and the end of the wire are hot-melted together; By setting up two groups of brackets 5, when one group of brackets 5 is performing the crimping work of the wire and the power terminal, the other group of brackets 5 takes over to complete the crimping of the wire and the power terminal through the rotation of the flip seat 4, and the crimped wire is taken out and reloaded into the wire rack, so that the processing is uninterrupted and continuous during operation, which reduces waiting and delays, helps to improve production efficiency and reduce time waste.

[0030] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A crimping device for connecting a wire harness, comprising an L-shaped fixing frame (2) mounted on the edge of the top surface of a processing table (1), characterized in that: The processing table (1) is provided with a support and pressing assembly for supporting the wire, a fixing seat (6) is provided below the top of the fixing frame (2), a correction assembly for correcting a single core in the wire is slidably mounted on the lower surface of the fixing seat (6), and a sheath (9) for docking with a plug-in terminal is sleeved on the outer side of the end of the wire, and the plug-in terminal and the wire maintain the same center of a circle; The correction component includes a correction plate (7), two correction cylinders (21) are installed on the inner side of the correction plate (7), and a motion block (22) is installed on the driving end of each correction cylinder (21) for contacting the corresponding wire core and correcting the deviation. A guide rail (27) is provided on one side of the fixed seat (6), and a loading and moving component for clamping the plug-in terminal is provided on the outer sliding side of the guide rail (27). A hot pressing component for hot-melting the sheath (9) and the wire end is provided on the other side of the fixed seat (6); The material loading and moving assembly includes a rotating cylinder (28), a clamping cylinder (11) is fixedly provided on the driving end of the rotating cylinder (28), an outer guard plate (29) is fixedly sleeved on the outside of the clamping cylinder (11), and a clamping unit is installed on the lower surface of the clamping cylinder (11), an annular groove (32) is provided on the outer edge of the outer guard plate (29), a ball head (31) is movably installed inside the annular groove (32), a reciprocating cylinder (30) is installed on the lower surface of the fixed frame (2), and a pushing end of the reciprocating cylinder (30) is fixed to the surface of the ball head (31); The hot pressing assembly comprises two hot pressing blocks (33) driven by an adjusting cylinder, wherein the hot pressing blocks (33) are tightly pressed against one side surface of the sheath (9).

2. A wire harness connection crimping device according to claim 1, characterized in that: The clamping unit comprises a sliding plate (12), a second clamping jaw (15) is fixedly provided at the end of the lower surface of the sliding plate (12), and a linear slide rail (13) is provided on the lower surface of the sliding plate (12), a clamping jaw (14) is slidably provided on the outside of the linear slide rail (13), and both the clamping jaw (14) and the second clamping jaw (15) are arc-shaped structures, the inner side surface of the clamping jaw (14) abuts against the stepped end surface of the plug-in terminal, and the inner wall surface of the clamping jaw (15) contacts one end surface of the plug-in terminal.

3. A wire harness connection crimping device according to claim 2, characterized in that: A slot (25) is provided on the stepped end face of the plug-in terminal, and a socket (23) is provided on the other end face of the plug-in terminal. A V-shaped conductive end (24) is installed inside the socket (23), and the conductive end (24) contacts the wire core. A screw hole communicating with the socket (23) is provided on the outer surface of the plug-in terminal, and a wire cap is installed in the screw hole.

4. A wire harness connection crimping device according to claim 3, characterized in that: An inner wall surface of the slot (25) is provided with an outwardly protruding positioning ring cavity (26), and another side surface of the sheath (9) is provided with an outwardly protruding outer ring (10) along the insertion position, and the outer ring (10) is engaged with the positioning ring cavity (26).

5. A wire harness connection crimping device according to claim 4, characterized in that: The end surface of the correction plate (7) is provided with a convex seat (8), and the bottom surface of the fixed seat (6) is provided with two linear slide rails (16), and the correction plate (7) slides on the corresponding linear slide rails (16).

6. A wire harness crimping device according to claim 5, characterized in that: An electric push rod (17) is installed on the inner wall surface of the convex seat (8), and a sliding plate (19) is slidably provided on the inner wall surface of the convex seat (8). Two rotating columns (20) are installed on the inner side surface of the sliding plate (19). The two rotating columns (20) are synchronously driven by a belt. The rotating columns (20) are adapted to the wire pressing cap. The outer side surface of the sliding plate (19) is provided with a limiting sliding rod (18) that moves in the correction plate (7).

7. A wire harness connection crimping device according to claim 6, characterized in that: A transfer clamp (3) for conveying plug terminals is slidably provided on one side of the clamping unit.

8. The wire harness crimping device according to claim 7, characterized in that: The supporting and pressing assembly comprises a turning seat (4) rotatably mounted on the top surface of the processing table (1), two sets of brackets (5) for supporting wire racks are mounted on the top surface of the turning seat (4), the upper end surface of the bracket (5) is provided with a mounting rod (36), the end surface of the mounting rod (36) is penetrated by a moving groove (38), and a pressing unit in contact with the wire is slidably mounted inside the moving groove (38); The bottom surface of the mounting rod (36) is hinged with an electric push rod 2 (37), and the holding unit includes a support block (35). The upper end surface of the support block (35) is connected to a pressing block (34) via a lifting cylinder, and a limiting column (39) sliding in a moving groove (38) is fixedly provided on one side of the support block (35). The pushing end of the electric push rod 2 (37) is hinged with the limiting column (39).

9. The working method of the crimping device for wire harness connection according to claim 8, characterized in that: The working method comprises the following steps: Step 1: A set of brackets (5) supports the wire rack and follows the rotation of the flip seat (4), pulls the wire through the support and pressing assembly, so that the wire core enters between the two correction plates (7), and uses a manipulator to put the sheath (9) onto the end of the wire; Step 2: When the wire enters the correction plate (7), the industrial camera adjusts the position of the two correction plates (7) on the fixed seat (6) in real time according to the position of the wire core. At this time, the wire core enters the opened motion block (22), and then the correction cylinder (21) drives and controls the corresponding motion block (22) to close, thereby adjusting the position of the wire core; Step 3: Clamp the plug-in terminal with the first clamp (14) and the second clamp (15), and change the angle of the plug-in terminal by rotating the rotary cylinder (28) clockwise. The plug-in terminal is concentric with the wire. The reciprocating cylinder (30) is used to push the loading and moving assembly to slide on the guide rail (27). The wire core enters the corresponding socket (23) and contacts the conductive end (24). The electric push rod (17) pushes the rotating column (20) to tighten the wire cap, completing the connection between the wire core and the plug-in terminal. Step 4: Then, the sheath (9) is pushed to wrap around the outside of the wire core by opening the pressing unit. At this time, the insertion end face of the sheath (9) enters the slot (25), so that the outer convex ring (10) of the end face is engaged with the positioning ring cavity (26), and the sheath (9) and the end of the wire core are heat-fused together by the hot pressing block (33), completing the crimping of the wire harness.

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