A quantitative cutting structure for automotive wiring harnesses

Abstract

This utility model discloses a quantitative cutting structure for automotive wiring harnesses, relating to the field of wiring harness processing technology. It includes a base, with mounting bracket one and mounting bracket two connected to the upper two sides of the base respectively. Mounting bracket one is equipped with a wire feeding assembly, and mounting bracket two is equipped with a cutting assembly. A mounting platform is connected to the upper end of the base between mounting bracket one and mounting bracket two, and an adjustment mechanism is provided on the mounting platform. This utility model uses a wire feeding roller locked by a ratchet and pawl, combined with a torsion spring, to achieve unidirectional wire feeding, completely eliminating wire harness backlash. After the electric push rod drives the clamping plate to clamp the wire harness, a reciprocating screw drives the slider to precisely move the set length, ensuring the cutting size error.

Description

Technical Field

[0001] This utility model relates to the field of wire harness processing technology, specifically to a quantitative cutting structure for automotive wire harnesses. Background Technology

[0002] As the "neural network" of a vehicle's electrical system, the cutting accuracy of automotive wiring harnesses directly affects the reliability of the entire vehicle's circuitry. In mass production, wiring harnesses must be cut to fixed lengths with strict tolerances to meet the requirements of terminal crimping and modular assembly. Traditional manual feeding and cutting methods are inefficient and prone to cumulative errors, while the upgrading of automotive electronic architecture further demands that cutting equipment possess adaptive clamping capabilities and millisecond-level continuous operation stability.

[0003] In existing wire harness cutting processes, pneumatic or servo wire feeding mechanisms are easily affected by the elastic retraction of the wire harness at the moment of cutting, resulting in length fluctuations. Furthermore, repeated positioning and measurement are required, making it impossible to achieve continuous quantitative cutting. To address this, we propose a quantitative cutting structure for automotive wire harnesses. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative cutting structure for automotive wiring harnesses to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative cutting structure for automotive wiring harnesses, comprising a base, with mounting bracket one and mounting bracket two respectively connected to the upper two sides of the base, mounting bracket one being provided with a wire feeding assembly, mounting bracket two being provided with a cutting assembly, and a mounting platform connected to the upper end of the base between mounting bracket one and mounting bracket two, with an adjustment mechanism provided on the mounting platform.

[0006] Preferably, the wire feeding assembly includes a rotating shaft and a wire feeding roller. The rotating shaft is rotatably connected to the inner side wall of the mounting frame one. The wire feeding roller is fixedly sleeved on the rotating shaft. A ratchet is fixedly sleeved at the end of the rotating shaft. A mounting seat is connected to one side of the rotating shaft on the inner side wall of the mounting frame one. A pawl is connected to the mounting seat.

[0007] Preferably, the adjusting mechanism includes a mounting plate and a reciprocating lead screw. The mounting plate is connected to the mounting platform. A sliding groove is provided on one side of the mounting plate. Two through slots are symmetrically provided at both ends of the sliding groove. A reciprocating lead screw is rotatably connected to one side of the upper opening of the mounting platform. A slider is threaded onto the reciprocating lead screw. The bottom end of the slider is slidably connected to the bottom of the upper opening of the mounting platform. A mounting groove is provided on one side of the slider. Two electric actuators are symmetrically connected to the inner sidewall of the mounting groove in the vertical direction. The output ends of the two electric actuators are connected to clamps.

[0008] Preferably, the cutting assembly includes a moving blade and a fixed blade, a cylinder is connected to the mounting bracket 2, the output end of the cylinder is connected to the moving blade, and a fixed blade is mounted on the upper surface of the mounting platform below the moving blade.

[0009] Preferably, one end of the rotating shaft extends through to the outer side of the mounting bracket and is connected to a turntable, and a torsion spring is sleeved on the outer wall of the mounting base, with pawls and the mounting base connected to the two ends of the torsion spring respectively.

[0010] Preferably, a motor is connected to one side of the mounting platform, and the output end of the motor is connected to one end of a reciprocating lead screw via a coupling.

[0011] Preferably, the mounting platform has a guide groove connected to one end near the mounting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This automotive wiring harness quantitative cutting structure uses a feed roller locked by a ratchet and pawl, combined with a torsion spring to achieve unidirectional wire feeding, completely eliminating wire harness backlash. After the electric push rod drives the clamping plate to clamp the wire harness, the reciprocating screw drives the slider to move precisely to the set length, ensuring the cutting size error.

[0014] 2. This automotive wiring harness quantitative cutting structure features a unique clamping plate separation and resetting mechanism: before cutting, the lower clamping plate descends along the through groove into the slide groove, and quickly returns to the starting position after separating from the wiring harness; the upper clamping plate maintains the position of the wiring harness, achieving uninterrupted continuous material supply and improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the connection structure of the rotating shaft of this utility model;

[0017] Figure 3 This is a cross-sectional view of the connection structure of the mounting plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the reciprocating lead screw of this utility model.

[0019] In the diagram: 1. Base; 2. Mounting bracket one; 3. Rotating shaft; 4. Wire feed roller; 5. Ratchet; 6. Mounting seat; 7. Pawl; 8. Torsion spring; 9. Turntable; 10. Mounting platform; 11. Mounting plate; 12. Slide groove; 13. Through groove; 14. Reciprocating lead screw; 15. Slider; 16. Motor; 17. Mounting groove; 18. Electric actuator; 19. Clamping plate; 20. Guide groove; 21. Mounting bracket two; 22. Cylinder; 23. Moving blade; 24. Fixed blade. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] like Figures 1 to 4As shown, the automotive wiring harness quantitative cutting structure of this embodiment includes a base 1. Mounting bracket 1 2 and mounting bracket 21 are respectively connected to the upper two sides of the base 1. Mounting bracket 1 2 and mounting bracket 21 are distributed opposite each other at both ends of the base 1, providing installation assistance for wire feeding and cutting. Mounting bracket 1 2 is equipped with a wire feeding assembly, and mounting bracket 21 is equipped with a cutting assembly. A mounting platform 10 is connected to the upper end of the base 1 between mounting bracket 1 2 and mounting bracket 21. The mounting platform 10 is equipped with an adjustment mechanism, which includes a mounting... Mounting plate 11 and reciprocating screw 14 are connected to mounting platform 10. Mounting plate 11 supports slide groove 12 and through groove 13, providing a track for clamping plate 19 to reset. Slide groove 12 is opened on one side of mounting plate 11, which is the path for clamping plate 19 to retract horizontally after detaching from wire harness, avoiding interference with wire harness. Two through grooves 13 are symmetrically opened at both ends of slide groove 12, providing a channel for clamping plate 19 to descend vertically. Reciprocating screw 14 is rotatably connected to one side of the upper opening of mounting platform 10, converting the rotational motion of motor 16 into the sliding block 15. Linear displacement, the displacement accuracy is determined by the lead of the reciprocating screw 14. A slider 15 is threaded onto the reciprocating screw 14, engaging with the screw thread to move the clamping plate 19 a set length. The bottom end of the slider 15 is slidably connected to the bottom of the upper opening of the mounting platform 10. A mounting groove 17 is provided on one side of the slider 15. Two electric actuators 18 are symmetrically connected to the inner wall of the mounting groove 17 in the vertical direction, independently controlling the lifting and lowering of the upper and lower clamping plates 19, realizing the continuous feeding logic of the lower clamping plate 19 disengaging and retracting. The two electric actuators 18 The output ends of 8 are all connected to clamps 19. The cutting assembly includes a moving blade 23 and a fixed blade 24. A cylinder 22 is connected to the mounting frame 21. The output end of the cylinder 22 is connected to the moving blade 23. The fixed blade 24 is installed on the upper surface of the mounting platform 10 below the moving blade 23. A motor 16 is connected to one side of the mounting platform 10. The output end of the motor 16 is connected to one end of the reciprocating lead screw 14 through a coupling. A guide groove 20 is connected to the end of the mounting platform 10 near the mounting frame 2 to ensure that the wire harness is aligned with the wire feeding roller 4 when it enters, thereby reducing skew.

[0023] Specifically, when using this automotive wiring harness quantitative cutting structure, the wiring harness is inserted through the guide groove 20, guided below the wire feeding roller 4 to the clamping plate 19 area, and the electric push rod 18 is activated to drive the upper and lower clamping plates 19 to clamp the wiring harness synchronously. At this time, the clamping plate 19 is located at the starting end, the motor 16 is started, and the reciprocating screw 14 drives the slider 15 and the clamping plate 19 to move towards the cutting end. The set length of the moving distance is controlled by the lead of the reciprocating screw 14. The two clamping plates 19 remain clamped, fixing the position of the wiring harness. The cylinder 22 pushes the moving blade 23 down, which cooperates with the fixed blade 24 to cut the wiring harness. Both electric push rods 18 retract, causing the lower clamping plate 19 to descend and the upper clamping plate 19 to rise. The lower clamping plate 19 enters the slide groove 12 through the through groove 13 and disengages from the wiring harness, causing the lower clamping plate 19 to return to the starting end from the slide groove 12 and then rise to reset. The upper clamping plate 19 descends to cooperate, and the wiring harness is once again synchronously clamped by the upper and lower clamping plates 19, realizing uninterrupted continuous feeding and improving work efficiency.

[0024] The wire feeding assembly includes a rotating shaft 3 and a wire feeding roller 4. The rotating shaft 3 is rotatably connected to the inner wall of the mounting frame 2. The wire feeding roller 4 is fixedly sleeved on the rotating shaft 3. A ratchet 5 is fixedly sleeved at the end of the rotating shaft 3. A mounting seat 6 is connected to one side of the rotating shaft 3 on the inner wall of the mounting frame 2. A pawl 7 is connected to the mounting seat 6. One end of the rotating shaft 3 extends to the outside of the mounting frame 2 and is connected to a turntable 9. A torsion spring 8 is sleeved on the outer wall of the mounting seat 6. The pawl 7 automatically resets, ensuring that the pawl 7 promptly rebounds and engages the ratchet 5 after each rotation. The two ends of the torsion spring 8 are respectively connected to the pawl 7 and the mounting seat 6, ensuring that the wire feeding roller 4 rotates only in one direction and preventing the wire bundle from retracting.

[0025] Furthermore, the wire feeding assembly includes a rotating shaft 3 and a wire feeding roller 4. The rotating shaft 3 is rotatably connected to the inner wall of the mounting frame 2. The wire feeding roller 4 is fixedly sleeved on the rotating shaft 3. A ratchet 5 is fixedly sleeved at the end of the rotating shaft 3. A mounting seat 6 is connected to one side of the rotating shaft 3 on the inner wall of the mounting frame 2. A pawl 7 is connected to the mounting seat 6. One end of the rotating shaft 3 extends through to the outside of the mounting frame 2 and is connected to a turntable 9. A torsion spring 8 is sleeved on the outer wall of the mounting seat 6. The pawl 7 automatically resets, ensuring that the pawl 7 promptly rebounds and engages the ratchet 5 after each rotation. The two ends of the torsion spring 8 are respectively connected to the pawl 7 and the mounting seat 6, ensuring that the wire feeding roller 4 rotates only in one direction and preventing the wire harness from retracting.

[0026] Furthermore, rotating the turntable 9 causes the wire feeding roller 4 to rotate, and the ratchet 5 follows the rotation of the turntable 9. By using the ratchet 5 and the pawl 7 to lock the wire feeding roller 4, and in conjunction with the torsion spring 8, unidirectional wire feeding is achieved, completely eliminating the possibility of wire harness backflow.

[0027] The usage method of this embodiment is as follows: When using this automotive wiring harness quantitative cutting structure, the wiring harness is inserted through the guide groove 20, led to the area of ​​the clamping plate 19 below the wire feeding roller 4, and the electric push rod 18 is activated to drive the upper and lower clamping plates 19 to clamp the wiring harness synchronously. At this time, the clamping plate 19 is located at the starting end. The rotating turntable 9 drives the wire feeding roller 4 to rotate, and the pawl 7 engages with the ratchet 5 to prevent retraction. The motor 16 is started, driving the reciprocating screw 14 to move the slider 15 and the clamping plate 19 towards the cutting end. The set length of the moving distance is determined by the reciprocating screw 14. The lead screw 14 controls the clamping action, keeping the two clamping plates 19 clamped and fixing the position of the wire harness. The cylinder 22 pushes the moving blade 23 down, cooperating with the fixed blade 24 to cut the wire harness. Both electric push rods 18 retract, causing the lower clamping plate 19 to descend and the upper clamping plate 19 to rise. The lower clamping plate 19 enters the slide groove 12 through the through groove 13 and disengages from the wire harness, causing the lower clamping plate 19 to retract from the slide groove 12 to the starting end, then rise to reset. The upper clamping plate 19 descends to cooperate, and the wire harness is once again clamped synchronously by the upper and lower clamping plates 19.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quantitative cutting structure for automotive wiring harnesses, comprising a base (1), characterized in that: The upper sides of the base (1) are respectively connected to mounting bracket one (2) and mounting bracket two (21). Mounting bracket one (2) is provided with a wire feeding assembly, and mounting bracket two (21) is provided with a cutting assembly. The upper end of the base (1) between mounting bracket one (2) and mounting bracket two (21) is connected to a mounting platform (10), and the mounting platform (10) is provided with an adjustment mechanism.

2. The automotive wiring harness quantitative cutting structure according to claim 1, characterized in that: The wire feeding assembly includes a rotating shaft (3) and a wire feeding roller (4). The rotating shaft (3) is rotatably connected to the inner wall of the mounting frame (2). The wire feeding roller (4) is fixedly sleeved on the rotating shaft (3). A ratchet (5) is fixedly sleeved at the end of the rotating shaft (3). A mounting seat (6) is connected to one side of the rotating shaft (3) on the inner wall of the mounting frame (2). A pawl (7) is connected to the mounting seat (6).

3. The automotive wiring harness quantitative cutting structure according to claim 1, characterized in that: The adjustment mechanism includes a mounting plate (11) and a reciprocating screw (14). The mounting plate (11) is connected to the mounting platform (10). A sliding groove (12) is provided on one side of the mounting plate (11). Two through grooves (13) are symmetrically provided at both ends of the sliding groove (12). The reciprocating screw (14) is rotatably connected to one side of the upper opening of the mounting platform (10). A slider (15) is threaded on the reciprocating screw (14). The bottom end of the slider (15) is slidably connected to the bottom of the upper opening of the mounting platform (10). A mounting groove (17) is provided on one side of the slider (15). Two electric actuators (18) are symmetrically connected to the inner side wall of the mounting groove (17) in the vertical direction. The output ends of the two electric actuators (18) are connected to clamps (19).

4. The automotive wiring harness quantitative cutting structure according to claim 1, characterized in that: The cutting assembly includes a moving blade (23) and a fixed blade (24). A cylinder (22) is connected to the mounting bracket (21). The output end of the cylinder (22) is connected to the moving blade (23). The fixed blade (24) is mounted on the upper surface of the mounting platform (10) below the moving blade (23).

5. The automotive wiring harness quantitative cutting structure according to claim 2, characterized in that: One end of the rotating shaft (3) extends through to the outside of the mounting bracket (2) and is connected to a turntable (9). A torsion spring (8) is sleeved on the outer wall of the mounting base (6). The two ends of the torsion spring (8) are respectively connected to a pawl (7) and the mounting base (6).

6. The automotive wiring harness quantitative cutting structure according to claim 3, characterized in that: A motor (16) is connected to one side of the mounting platform (10), and the output end of the motor (16) is connected to one end of the reciprocating lead screw (14) through a coupling.

7. The automotive wiring harness quantitative cutting structure according to claim 3, characterized in that: The mounting platform (10) has a guide groove (20) connected to one end of the mounting frame (2).

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