A double-end terminal machine rear-end stripping auxiliary structure

Abstract

The utility model belongs to terminal machine technical field, and disclose a double -end terminal machine rear end stripping auxiliary structure, including mounting plate frame, single -shaft guide rail, moving block, moving load board, stripping line guide slot and terminal wire clamping assembly etc. The mounting plate frame is fixed in the terminal machine, and the moving block on single -shaft guide rail is linked with moving load board, and the clamping assembly installation base block is equipped with stripping line guide slot and terminal wire clamping assembly. Terminal wire clamping assembly realizes the stable clamping of the wire through the opening and closing of the chuck, and cooperates with the gear and rack transmission driven by the servo motor, so that the whole structure moves along the single -shaft guide rail in the direction, completes the wire conveying, and the photoelectric counter and the counting shielding plate cooperate to realize the processing count. The structure can transport the terminal wire forward, can shorten the movement stroke of the clamping jaw, reduce the torque and wear, improve the movement precision, and can clamp the wire when the rear end stripping operation, avoid the processing quality problem caused by its loosening, realize the automatic and coherent operation, improve the production efficiency and the yield.

Description

Technical Field

[0001] This utility model relates to the field of terminal crimping machine technology, specifically to a rear-end stripping auxiliary structure for a double-head terminal crimping machine. Background Technology

[0002] In the field of electronic wire harness processing, terminal crimping machines are key equipment for achieving efficient connections between wires and terminals. Their technological evolution has consistently revolved around improving processing efficiency and connection accuracy. Early single-head terminal crimping machines could only crimp and strip one end of the terminal wire. For wire harnesses requiring processing at both ends, two clamping operations and two processing steps were necessary to complete all processes. Double-head terminal crimping machines emerged to address this need. Based on the single-head machine, by adding a set of processing equipment, they can complete the processing at both ends of the terminal wire, significantly improving production efficiency and reducing positioning deviations caused by repeated clamping. They are widely used in fields with high precision requirements, such as automotive wiring harnesses and home appliance wiring. However, in the actual operation of double-head terminal crimping machines, there are still technical bottlenecks in the back-end stripping process. On the one hand, if the original grippers are used to hold the terminal wires, the gripper's travel distance is relatively large. This design not only increases the overall size of the equipment and limits the flexibility of the production line layout, but also increases the driving torque due to the excessively long travel distance, exacerbating the wear of mechanical parts and shortening the equipment's service life. At the same time, long-stroke motion is prone to inertial impact, leading to a decrease in gripper positioning accuracy, directly affecting production quality and significantly reducing the yield rate. On the other hand, existing stripping equipment is not very suitable for stripping the wires at the rear end of the terminal. During the stripping operation at the rear end, the terminal wires are prone to loosening, resulting in poor stripping quality and affecting the subsequent terminal head installation operation. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a rear-end stripping auxiliary structure for a double-headed terminal crimping machine, thereby solving the problems mentioned in the background art, such as the large stroke of the wire clamps in the double-headed terminal crimping machine and loosening during rear-end stripping.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a rear-end stripping auxiliary structure for a double-headed terminal block machine, characterized in that it comprises: Mounting plate frame, which is fixedly mounted on the terminal block machine; A single-axis guide rail is fixedly mounted on one side of the mounting plate frame, and a moving block is movably engaged on the single-axis guide rail; A motion carrier plate is fixedly connected to a motion block, and the motion carrier plate is parallel to the mounting plate frame. A clamping component mounting base block is fixedly provided at one end of the motion carrier plate away from the mounting plate frame, and the clamping component mounting base block is perpendicular to the motion carrier plate. A peeling line guide groove is fixedly disposed below the clamping assembly mounting base block, and the peeling line guide groove is parallel to the moving carrier plate; The terminal wire clamping assembly is located at the output port of the terminal wire stripping assembly. The terminal wire clamping assembly includes two sets of fixed clamping blocks, a first clamp, and a second clamp. Both sets of fixed clamping blocks are fixedly located on the side of the clamping assembly mounting base away from the moving carrier plate. The first clamp and the second clamp are located between the two sets of fixed clamping blocks.

[0005] Preferably, a rack is provided below the moving block, the rack is fixedly connected to the moving carrier plate, and the teeth of the moving carrier plate are vertically downward.

[0006] Preferably, a servo motor is provided on the side of the mounting plate away from the single-axis guide rail, and a gear is coaxially connected to the output shaft of the servo motor, and the gear meshes with the rack.

[0007] Preferably, a double-clamp hinged rod is fixedly provided inside the fixed clamp block, and the first clamp and the second clamp are hinged together by the double-clamp hinged rod.

[0008] Preferably, the first chuck is hinged to a first crank rod on the side opposite to the hinged fixed rod of the double chuck, and the second chuck is hinged to a second crank rod on the side opposite to the hinged fixed rod of the double chuck. A movable lifting block is provided above the first chuck and the second chuck. The end of the first crank rod opposite to the first chuck is hinged to the lifting block, and the end of the second crank rod opposite to the second chuck is hinged to the lifting block.

[0009] Preferably, a lifting base block is fixedly installed on each of the two sets of fixed clamp blocks, and a lifting rod is installed inside the lifting base block, with one end of the lifting rod fixedly connected to the lifting block.

[0010] Preferably, the bottom of the first clamp is fixedly provided with a first clamping shape, and the bottom of the second clamp is fixedly provided with a second clamping shape corresponding to the first clamping shape.

[0011] Preferably, a photoelectric counter is fixedly mounted on the mounting plate frame, and a counting shield is fixedly mounted on the moving block, with one end of the counting shield extending into the photoelectric counter.

[0012] Compared with the prior art, this utility model provides a rear-end stripping auxiliary structure for a double-headed terminal machine, which has the following beneficial effects: The rear stripping auxiliary structure of this double-head terminal crimping machine is equipped with a mounting plate frame, a single-axis guide rail, a moving block, a stripping wire guide groove, a first chuck, and a second chuck. It can hold the shorter end of the terminal wire during stripping and cutting operations, fix the terminal wire, and prevent the wire from loosening during the stripping operation. At the same time, it can transport the stripped terminal wire to the front material table of the terminal crimping machine, so that the chucks above the front material table can hold the terminal wire. The chucks do not need to make large stroke movements, which facilitates subsequent operations. It can also count the stripping operations. It is easy to use and highly practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the peeling auxiliary structure and the double-head terminal machine of this utility model; Figure 2 This is a schematic diagram of the peeling auxiliary structure and the front material platform of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the overall structure of this utility model; Figure 5 This is a schematic diagram of the first and second clamping structures of this utility model; Figure 6 This is a schematic diagram of the overall structure of this utility model.

[0014] In the diagram: 1. Mounting plate frame; 2. Servo motor; 3. Gear; 4. Rack; 5. Single-axis guide rail; 6. Moving block; 7. Moving carrier plate; 8. Clamping assembly mounting base block; 9. Stripping line guide groove; 10. Fixed chuck block; 11. Lifting base block; 12. Lifting rod; 13. First chuck; 14. Second chuck; 15. Double chuck hinged fixed rod; 16. First crank rod; 17. Second crank rod; 18. Lifting block; 19. First clamping shape; 20. Second clamping shape; 21. Photoelectric counter; 22. Counting shield. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 This utility model provides a technical solution: A stripping auxiliary structure at the rear end of a double-headed terminal crimping machine, characterized in that it comprises: Mounting plate frame 1 is fixedly mounted on the terminal block machine; A single-axis guide rail 5 is fixedly installed on one side of the mounting plate frame 1, and a moving block 6 is movably engaged on the single-axis guide rail 5. The moving carrier plate 7 is fixedly connected to the moving block 6, and the moving carrier plate 7 is parallel to the mounting plate frame 1. A clamping component mounting base block 8 is fixedly provided at the end of the moving carrier plate 7 away from the mounting plate frame 1, and the clamping component mounting base block 8 is perpendicular to the moving carrier plate 7. The stripping wire guide groove 9 is fixedly installed below the clamping component mounting base block 8, and the stripping wire guide groove 9 is parallel to the moving carrier plate 7. The outlet of the stripping wire guide groove 9 faces the front material table of the terminal machine, and the terminal wire after stripping is placed on the front material table through the stripping wire guide groove 9.

[0017] A terminal wire clamping assembly is located at the output port of the terminal wire stripping assembly. The terminal wire clamping assembly includes two sets of fixed clamping blocks 10, a first clamp 13, and a second clamp 14. Both sets of fixed clamping blocks 10 are fixedly mounted on the side of the clamping assembly mounting base 8 opposite to the moving carrier plate 7. The first clamp 13 and the second clamp 14 are positioned between the two sets of fixed clamping blocks 10. The first clamp 13 and the second clamp 14 can open and close to clamp the terminal wire. This auxiliary structure clamps the terminal wire during stripping, facilitating the cutting operation. Afterward, it continues to clamp the cut terminal wire. The entire auxiliary structure moves along the single-axis guide rail 5, allowing the grippers on the front material table of the terminal machine to hold the stripped terminal wire for subsequent operations.

[0018] Furthermore, a rack 4 is provided below the moving block 6, and the rack 4 is fixedly connected to the moving carrier plate 7, with the teeth of the moving carrier plate 7 pointing vertically downwards.

[0019] Furthermore, a servo motor 2 is installed on the side of the mounting plate 1 away from the single-axis guide rail 5. A gear 3 is coaxially connected to the output shaft of the servo motor 2, and the gear 3 meshes with the rack 4. The mounting plate 1 is provided with a motor mounting plate and a motor output shaft clearance hole. The rotation of the servo motor 2 drives the gear 3 to rotate. Since the gear 3 and the rack 4 mesh, the rack 4 and the entire structure connected to the rack 4 can move along the single axis of the single-axis guide rail 5. After the terminal wire is cut, the terminal wire can be transported towards the front material table. After the transport is completed, the servo motor 2 rotates in the opposite direction to reset the auxiliary structure, so that it can clamp a new terminal wire again. The specific model of the servo motor 2 is not limited, and its controller and control program are all existing technologies.

[0020] Furthermore, a double-clamp hinged rod 15 is fixedly installed inside the fixed clamp block 10. The first clamp 13 and the second clamp 14 are hinged together through the double-clamp hinged rod 15. The first clamp 13 and the second clamp 14 can only rotate around the double-clamp hinged rod 15, which will change the included angle at the lower end, thereby realizing the clamping and releasing of the terminal wire.

[0021] Furthermore, a first crank rod 16 is hinged to the side of the first chuck 13 away from the hinged fixed rod 15 of the double chuck, and a second crank rod 17 is hinged to the side of the second chuck 14 away from the hinged fixed rod 15 of the double chuck. A movable lifting block 18 is provided above the first chuck 13 and the second chuck 14. The end of the first crank rod 16 away from the first chuck 13 is hinged to the lifting block 18, and the end of the second crank rod 17 away from the second chuck 14 is hinged to the lifting block 18. As the lifting block 18 rises, it cannot rise along with the first chuck 13 and the second chuck 14 due to the constraint. The first crank rod 16 and the second crank rod 17, together with the first chuck 13 and the second chuck 14, form a classic crank structure. The ends of the first crank rod 16 and the second crank rod 17 that are hinged to the lifting block 18 will rise together with the lifting block 18. After that, the angle between the first crank rod 16 and the second crank rod 17 and the lifting block 18 will change, and at the same time, the angle between the first crank rod 16 and the second crank rod 17 and the first chuck 13 and the second chuck 14 will change, ultimately realizing the opening and closing of the first chuck 13 and the second chuck 14.

[0022] Furthermore, a lifting base block 11 is fixedly mounted on each of the two sets of fixed clamp blocks 10. A lifting rod 12 is installed inside the lifting base block 11, and one end of the lifting rod 12 is fixedly connected to the lifting block 18. The lifting base block 11 can serve as the mounting base for the lifting actuator. The lifting rod 12 is directly connected to the lifting actuator and provides lifting power to the lifting block 18. The specific lifting actuator is not limited; any commonly used by those skilled in the art is applicable. It is recommended to use one of the following: a cylinder, a servo telescopic rod, or a linear motor.

[0023] Furthermore, a first clamping shape 19 is fixedly provided at the bottom of the first clamp 13, and a second clamping shape 20 corresponding to the first clamping shape 19 is fixedly provided at the bottom of the second clamp 14. The first clamping shape 19 and the second clamping shape 20 are structures that directly clamp the terminal wires, and after the first clamping shape 19 and the second clamping shape 20 are closed, there is a gap in the middle that is adapted to the terminal wires.

[0024] Furthermore, a photoelectric counter 21 is fixedly mounted on the mounting frame 1, and a counting baffle 22 is fixedly mounted on the moving block 6, with one end of the counting baffle 22 extending into the photoelectric counter 21. The photoelectric counter 21 is a light source with a photosensitive element that converts light signals into electrical signals. The counting baffle 22 moves together with the moving block 6. Each time the moving block 6 performs one movement (transporting the stripped terminal wires to the front material table), the counting baffle 22 blocks the light path of the photoelectric counter 21. At this time, the photosensitive element cannot receive light and cannot output electrical signals. In this way, the counting can be performed by the high and low level changes of the signal, which can record the total number of stripping processes performed, and can also calibrate the position of the auxiliary structure to avoid the accumulation of errors in the gear and rack mechanism over a long period of use.

[0025] Structural Description: Mounting frame 1: Basic support component, fixed on the terminal block machine, bearing components such as single-axis guide rail 5 and servo motor 2, providing a stable mounting foundation for the overall structure; Servo motor 2: a drive component, located on the side of the mounting plate 1 away from the single-axis guide rail 5, with its output shaft coaxially connected to gear 3 to provide power for the movement of the structure; Gear 3: A transmission component, coaxially connected to the output shaft of servo motor 2, meshing with rack 4, and transmitting the power of servo motor 2 to rack 4; Rack 4: A transmission component located below the moving block 6 and fixedly connected to the moving carrier plate 7. Its teeth point vertically downward and mesh with the gear 3, converting the rotational motion of the gear 3 into linear motion. Single-axis guide rail 5: a guide component, fixed to one side of the mounting plate frame 1, movably engaging the moving block 6, and guiding the moving block 6 to move stably along the single-axis direction; Motion block 6: a moving carrier, which is movably attached to the single-axis guide rail 5 and fixedly connected to the motion carrier plate 7. It is connected to the rack 4 below and has several baffles 22 above, which drive the related components to move synchronously. Motion carrier plate 7: Connects the carrier, is fixed to the motion block 6 and parallel to the mounting plate frame 1, and has a clamping component mounting base block 8 fixed at one end away from the mounting plate frame 1 to transmit motion to the clamping component; Clamping assembly mounting base 8: The mounting base is perpendicular to and fixedly connected to the moving carrier plate 7. It has a stripping line guide groove 9 below and two sets of fixing clamp blocks 10 fixed on one side to carry the terminal wire clamping assembly. Peeling line guide groove 9: guide component, fixed below the clamping assembly mounting base 8 and parallel to the moving carrier plate 7, with the outlet facing the front material table, guides the peeled terminal wire to be conveyed to the front material table; Fixed chuck block 10: mounting carrier, both sets are fixed on the side of the clamping component mounting base block 8 away from the moving carrier plate 7, with double chuck hinged fixed rod 15 inside, and lifting base block 11 fixed above, bearing the chuck and lifting components; Lifting base block 11: Installation base, fixed on two sets of fixed clamp blocks 10, with lifting rod 12 inside to provide installation space for the lifting actuator; Lifting rod 12: a transmission component, located inside the lifting base block 11, with one end fixedly connected to the lifting block 18, transmitting lifting power to the lifting block 18; First chuck 13: Clamping component, located between two sets of fixed chuck blocks 10, and hinged to the second chuck 14 via double chuck hinged rod 15. It has a first clamping shape 19 at the bottom and a first crank rod 16 hinged to one side, which can open and close to clamp the terminal wire. Second chuck 14: Clamping component, located between two sets of fixed chuck blocks 10, hinged to the first chuck 13 via double chuck hinged rod 15, with a second clamping shape 20 at the bottom and a second crank rod 17 hinged to one side, which can open and close to clamp the terminal wire. Double-clamp hinged fixed rod 15: Hinge shaft, fixed in the fixed clamp block 10, hinges the first clamp 13 and the second clamp 14 so that the two can rotate around it to realize opening and closing. First crank lever 16: transmission connecting rod, one end is hinged to the first chuck 13 on the side away from the double chuck hinged fixed rod 15, and the other end is hinged to the lifting block 18, transmitting the movement of the lifting block 18 to the first chuck 13. Second crank lever 17: transmission connecting rod, one end is hinged to the second chuck 14 on the side away from the double chuck hinged fixed rod 15, and the other end is hinged to the lifting block 18, transmitting the movement of the lifting block 18 to the second chuck 14. Lifting block 18: a transmission component, located above the first chuck 13 and the second chuck 14, fixedly connected to the lifting rod 12, and hinged to the first crank rod 16 and the second crank rod 17, driving the chucks to open and close through lifting; First clamping shape 19: clamping contact part, fixed to the bottom of the first clamp 13, corresponding to the second clamping shape 20, and after closing, forming a gap adapted to the terminal wire, directly contacting and clamping the wire; Second clamping shape 20: clamping contact part, fixed to the bottom of the second clamp 14, corresponding to the first clamping shape 19, and forming a gap adapted to the terminal wire after closing, directly contacting and clamping the wire; Photoelectric counter 21: A counting component, fixed on the mounting plate frame 1, with a built-in light source and photosensitive element. It achieves processing counting by blocking the on and off changes of the light path through the counting shield 22. Counting baffle 22: A counting auxiliary component, fixed on the moving block 6, with one end extending into the photoelectric counter 21. When the moving block 6 moves, it blocks the light path and assists the photoelectric counter 21 in completing the counting.

[0026] Working principle: When the equipment is started, the terminal wire to be processed is conveyed to the stripping operation area. At this time, the lifting actuator drives the lifting rod 12 to lower the lifting block 18. Through the transmission action of the first crank rod 16 and the second crank rod 17, the first chuck 13 and the second chuck 14 rotate synchronously around the double-chuck hinged fixed rod 15. The first clamping shape 19 and the second clamping shape 20 at the bottom close and clamp the terminal wire. This clamping method can keep the wire stable during stripping and cutting operations and avoid processing quality problems caused by loosening.

[0027] After the peeling operation is completed, the servo motor 2 starts and drives the gear 3 to rotate. Through the meshing transmission between the gear 3 and the rack 4, the moving block 6 moves directionally along the single-axis guide rail 5. Since the moving carrier plate 7, the clamping assembly mounting base block 8 and the terminal wire clamping assembly are all rigidly connected to the moving block 6, the entire clamping structure moves synchronously with the moving block 6, smoothly conveying the clamped terminal wires to the top of the front material table of the terminal machine.

[0028] Once the terminal wire reaches the designated position on the front material table, the lifting actuator drives the lifting block 18 to rise. This, via a crank-connecting rod mechanism, causes the first chuck 13 and the second chuck 14 to open, releasing the terminal wire. This allows the grippers above the front material table to grasp it for subsequent processing, eliminating the need for large stroke movements by the grippers. Subsequently, the servo motor 2 reverses its rotation, using a rack and pinion drive to reset the entire auxiliary structure along the single-axis guide rail 5, returning it to its initial clamping position, ready for the next work cycle.

[0029] Throughout the operation, the photoelectric counter 21 and the counting baffle 22 work together to achieve automated counting: each time the moving block 6 completes a conveying-reset cycle, the counting baffle 22 blocks the light path of the photoelectric counter 21 once, recording the number of processing operations through the change in the on / off state of the light signal. Simultaneously, this counting mechanism can assist in calibrating the structural position, preventing the cumulative errors caused by long-term operation of gears and racks from affecting positioning accuracy.

[0030] The single-axis linear motion driven by the servo motor significantly shortens the movement stroke of the gripper, eliminating the need for grippers with large strokes and avoiding the defects of large-stroke grippers. The synchronous clamping design of the dual chucks ensures the stability of the terminal wires during processing, effectively improving the quality and efficiency of the back-end stripping operation, and realizing automated and continuous operation from clamping, processing to conveying.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rear-end stripping auxiliary structure for a double-headed terminal machine, characterized in that, include: Mounting plate frame (1), which is fixedly mounted on the terminal block machine; A single-axis guide rail (5) is fixedly mounted on one side of the mounting plate frame (1), and a moving block (6) is movably engaged on the single-axis guide rail (5). The motion carrier plate (7) is fixedly connected to the motion block (6), and the motion carrier plate (7) is parallel to the mounting frame (1). A clamping component mounting base block (8) is fixedly provided at one end of the motion carrier plate (7) away from the mounting frame (1), and the clamping component mounting base block (8) is perpendicular to the motion carrier plate (7). Peeling line guide groove (9), the peeling line guide groove (9) is fixedly set below the clamping component mounting base block (8), and the peeling line guide groove (9) is parallel to the moving carrier plate (7); The terminal wire clamping assembly is located at the output port of the terminal wire stripping assembly. The terminal wire clamping assembly includes two sets of fixed clamp blocks (10), a first clamp (13) and a second clamp (14). The two sets of fixed clamp blocks (10) are fixedly located on the side of the clamping assembly mounting base block (8) away from the moving carrier plate (7). The first clamp (13) and the second clamp (14) are located between the two sets of fixed clamp blocks (10).

2. The auxiliary structure for stripping the rear end of a double-headed terminal machine according to claim 1, characterized in that, A rack (4) is provided below the moving block (6), the rack (4) is fixedly connected to the moving carrier plate (7), and the teeth of the moving carrier plate (7) are vertically downward.

3. The auxiliary structure for stripping the rear end of a double-headed terminal machine according to claim 2, characterized in that, A servo motor (2) is provided on the side of the mounting plate frame (1) away from the single-axis guide rail (5). A gear (3) is coaxially connected to the output shaft of the servo motor (2), and the gear (3) meshes with the rack (4).

4. The auxiliary structure for stripping the rear end of a double-headed terminal machine according to claim 1, characterized in that, The fixed clamp block (10) is fixedly provided with a double clamp hinged rod (15), and the first clamp (13) and the second clamp (14) are hinged together by the double clamp hinged rod (15).

5. The auxiliary structure for stripping the rear end of a double-headed terminal machine according to claim 4, characterized in that, The first chuck (13) is hinged to a first crank rod (16) on the side away from the double chuck hinged fixed rod (15), and the second chuck (14) is hinged to a second crank rod (17) on the side away from the double chuck hinged fixed rod (15). A movable lifting block (18) is provided above the first chuck (13) and the second chuck (14). The end of the first crank rod (16) away from the first chuck (13) is hinged to the lifting block (18), and the end of the second crank rod (17) away from the second chuck (14) is hinged to the lifting block (18).

6. The auxiliary structure for stripping the rear end of a double-headed terminal machine according to claim 5, characterized in that, Two sets of fixed clamp blocks (10) are fixedly provided with lifting base blocks (11), and lifting rods (12) are provided inside the lifting base blocks (11). One end of the lifting rods (12) is fixedly connected to the lifting blocks (18).

7. The auxiliary structure for stripping the rear end of a double-headed terminal block machine according to claim 6, characterized in that, The bottom of the first clamp (13) is fixedly provided with a first clamping shape (19), and the bottom of the second clamp (14) is fixedly provided with a second clamping shape (20) corresponding to the first clamping shape (19).

8. The auxiliary structure for stripping the rear end of a double-headed terminal block machine according to claim 1, characterized in that, A photoelectric counter (21) is fixedly installed on the mounting plate (1), and a counting shield (22) is fixedly installed on the moving block (6), with one end of the counting shield (22) extending into the photoelectric counter (21).

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