A rubber sleeve machine for automobile wire harness production

Abstract

The utility model discloses a kind of rubber sleeve machines for automobile wiring harness production, including bottom plate, the upper end of the bottom plate is equipped with moving mechanism, the upper end of the moving mechanism is equipped with lifting structure, the upper end of the lifting structure is equipped with L type bearing plate, two clamping mechanisms are installed on the L type bearing plate, and conveying structure is equipped between two clamping mechanisms;The moving mechanism includes the mounting block fixed on the both sides of bottom plate upper end, stud is rotatably connected between two mounting blocks, one end of the stud is connected with first servo motor, and moving block is screwed on the stud, and moving plate is fixed on the moving block.The utility model breaks through the rigid constraint of traditional mechanical limiting, adapts to the flexible production demand of different specifications wiring harness, is not interfered by light, oil stain, is applicable to continuous batch production environment, simultaneously realizes multiple degrees of freedom collaborative rectification, guarantees the quality and efficiency of production, enhances stability.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness sleeve technology, and in particular to a sleeve machine for automotive wiring harness production. Background Technology

[0002] In modern automobile manufacturing, wiring harnesses serve as the "nervous system" of a vehicle, undertaking the core functions of power transmission and signal control. With the continuous improvement of automotive electronics (such as ADAS systems, smart cockpits, electric drives, etc.), the number and complexity of vehicle wiring harnesses have increased significantly, and the requirements for assembly precision, efficiency, and reliability have reached unprecedented heights.

[0003] Among these processes, the installation of the insulating sleeve is a crucial step in wire harness manufacturing. Its function is to protect the wire harness terminals from wear, vibration, and moisture damage, while also improving overall insulation performance and aesthetics. However, under traditional manual operation methods, this step faces the following bottlenecks: 1. Low efficiency: The gluing time for a single piece is ≥15 seconds, which is difficult to meet the cycle time of automated production lines (usually required to be ≤5 seconds / piece). 2. Reliance on manual experience: The insertion angle and depth of the wire harness need to be adjusted manually, resulting in poor consistency; 3. Prone to damage: Improper operation can easily lead to terminal deformation, sheath breakage, or wire damage; 4. High and unstable labor costs: Shortage of skilled workers, long training cycles, and staff turnover affect production capacity.

[0004] To address these issues, we propose a rubber sleeve machine for automotive wiring harness production. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rubber sleeve machine for automotive wiring harness production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A rubber sleeve machine for producing automotive wiring harnesses includes a base plate, a moving mechanism mounted on the upper end of the base plate, a lifting structure mounted on the upper end of the moving mechanism, an L-shaped bearing plate mounted on the upper end of the lifting structure, two clamping mechanisms mounted on the L-shaped bearing plate, and a conveying structure provided between the two clamping mechanisms. The moving mechanism includes mounting blocks fixed on both sides of the upper end of the base plate, a stud rotatably connected between the two mounting blocks, a first servo motor connected to one end of the stud, a moving block threaded onto the stud, and a moving plate fixed on the moving block; The lifting structure includes hydraulic cylinders fixed to both sides of the upper end of the movable plate, and the piston rod ends of the hydraulic cylinders are fixed to both sides of the lower end of the L-shaped support plate. The clamping mechanism includes a top plate fixed to both sides of the upper end of an L-shaped support plate. A cylinder is fixed to the upper end of the top plate. A U-shaped mounting component is connected to the end of the piston rod of the cylinder. A clamping roller is rotatably connected to the U-shaped mounting component.

[0007] Preferably, the conveying structure includes a second servo motor fixed to one side of the L-shaped support plate, the output shaft of the second servo motor is connected to a conveying roller, and the upper end of the conveying roller passes through the side wall of the L-shaped support plate and extends between two clamping rollers.

[0008] Preferably, two guide rods are fixed between the two mounting blocks, the moving block passes through the guide rods, and one end of the first servo motor is fixed to one side of one of the mounting blocks.

[0009] Preferably, a limiting plate is fixed on one side of the L-shaped support plate, and the limiting plate is provided with a limiting hole.

[0010] Preferably, a laser scanner is fixed to one end of one of the top plates.

[0011] Preferably, the base plate has mounting holes at all four corners of its upper end.

[0012] This utility model has the following advantages: 1. It adopts a dual closed-loop control of "vision + execution" to break through the rigid constraints of traditional mechanical limit and adapt to the flexible production needs of wire harnesses of different specifications. 2. Non-contact online detection and real-time feedback control combined with laser scanners replace manual observation, with sub-millimeter resolution, and is unaffected by light or oil, making it suitable for continuous batch production environments; 3. Combined adjustment of X-axis (stud + servo motor) and Z-axis (hydraulic cylinder) to achieve multi-degree-of-freedom coordinated correction; 4. The U-shaped mounting bracket, combined with the pneumatic clamping roller, can firmly hold the wire without damaging the insulation. The servo motor drives the conveying roller to ensure uniform and controllable propulsion force. In summary, this utility model breaks through the rigid constraints of traditional mechanical positioning, adapts to the flexible production needs of wire harnesses of different specifications, is not affected by light or oil, is suitable for continuous batch production environments, and achieves multi-degree-of-freedom collaborative correction to ensure production quality and efficiency and enhance stability. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a diagram of the wiring harness installation structure. Figure 3 for Figure 1 Enlarged view of the structure at point A.

[0014] In the diagram: 101 mounting hole, 102 base plate, 201 first servo motor, 202 mounting block, 203 stud, 204 guide rod, 301 moving plate, 302 hydraulic cylinder, 303 L-shaped bearing plate, 401 conveying roller, 402 second servo motor, 501 cylinder, 502 top plate, 503 U-shaped mounting part, 504 clamping roller, 601 laser scanner, 602 limiting hole, 603 limiting plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-3 A rubber sleeve machine for producing automotive wiring harnesses includes a base plate 102, a moving mechanism installed at the upper end of the base plate 102, a lifting structure installed at the upper end of the moving mechanism, an L-shaped bearing plate 303 installed at the upper end of the lifting structure, two clamping mechanisms installed on the L-shaped bearing plate 303, and a conveying structure provided between the two clamping mechanisms. The moving mechanism includes mounting blocks 202 fixed on both sides of the upper end of the base plate 102. A stud 203 is rotatably connected between the two mounting blocks 202. One end of the stud 203 is connected to a first servo motor 201. The first servo motor 201 is equipped with encoder closed-loop feedback, which can realize precise step control. A movable block is threaded onto the stud 203, and a movable plate 301 is fixed on the movable block. The stud 203 is a ball screw structure, which, together with a precision nut, achieves low-friction, high-response linear drive. The lifting structure includes hydraulic cylinders 302 fixed on both sides of the upper end of the movable plate 301. The piston rod ends of the hydraulic cylinders 302 are fixed on both sides of the lower end of the L-shaped support plate 303. The hydraulic cylinders 302 provide vertical power output and connect to the L-shaped support plate 303 to realize the up and down lifting action. The clamping mechanism includes a top plate 502 fixed on both sides of the upper end of the L-shaped support plate 303. A cylinder 501 is fixed at the upper end of the top plate 502. A U-shaped mounting part 503 is connected to the piston rod end of the cylinder 501. A clamping roller 504 is rotatably connected to the U-shaped mounting part 503. The cylinder 501 is a double-acting low-friction cylinder with a fast response speed (≤0.1s), which is suitable for high-frequency start and stop. The conveying structure includes a second servo motor 402 fixed on one side of the L-shaped support plate 303. The output shaft of the second servo motor 402 is connected to a conveying roller 401. The upper end of the conveying roller 401 passes through the side wall of the L-shaped support plate 303 and extends between two clamping rollers 504. The surface of the clamping rollers 504 is covered with a polyurethane soft layer, which can ensure sufficient clamping force (to prevent slippage) and will not damage the wire harness insulation. Two guide rods 204 are fixed between the two mounting blocks 202. The moving block passes through the guide rods 204. One end of the first servo motor 201 is fixed to one side of one of the mounting blocks 202. The guide rods 204 adopt two parallel high-precision linear optical axes to improve the guiding rigidity and repeatability of positioning. A limiting plate 603 is fixed on one side of the L-shaped support plate 303. The limiting plate 603 is provided with a limiting hole 602. The limiting plate 603 and the limiting hole 602 provide a physical guide channel for the initial introduction of the wire harness, limiting the lateral deviation to within ±3mm. The inner wall of the limiting hole is coated with a wear-resistant coating to reduce friction and wear. One end of one of the top plates 502 is fixed with a laser scanner 601, and the four corners of the upper end of the bottom plate 102 are provided with mounting holes 101. The laser scanner 601 is installed on one side of the top plate 502 and emits a two-dimensional contour laser line toward the front end of the wire harness. The sampling frequency is ≥100Hz and the resolution can reach 0.05mm. It can capture subtle offsets and supports image processing algorithms such as edge extraction, circle center fitting, and angle calculation.

[0017] In this utility model, when applying adhesive to the wire harness: Phase 1: Initialization Preparation and Pre-installation of Rubber Sleeves The robotic arm puts the rubber sleeve into the central tube (completed at the external workstation), the equipment resets to the origin, the hydraulic cylinder retracts, the clamping rollers open, the laser scanner starts self-checking to confirm that the field of view is clear and unobstructed, and the first servo motor and the second servo motor are zeroed and calibrated. Phase Two: Wire Harness Introduction and Initial Positioning One end of the wire harness is fed into the area of ​​the limiting plate 603 by the upstream conveyor belt. The limiting hole 602 plays a guiding role and limits the lateral offset range (within ±3mm). The clamping mechanism is initially closed, the cylinder 501 is activated, and the U-shaped mounting part drives the clamping roller 504 to gently clamp the outer sheath of the wire harness. At this time, it is not fully locked, leaving room for fine adjustment. Phase 3: Dynamic Alignment and Path Correction The laser scanner 601 continuously scans the front end contour of the wire harness to obtain its offset angle and deviation relative to the ideal axis. The data is transmitted to the main control system in real time for coordinate transformation and error analysis. If the deviation exceeds the set threshold, the correction algorithm is triggered: X-axis correction: The first servo motor 201 drives the stud 203 to rotate, which drives the moving plate 301 to move laterally along the guide rod 204. Z-axis correction: The hydraulic cylinder 302 finely adjusts the extension and retraction amount to adjust the height of the L-shaped support plate 303. This process is repeated multiple times until the wire harness axis coincides with the rubber sleeve inlet axis (error ≤ ±0.3mm). Phase Four: Precision Delivery and Fitting Action After the correction is completed, the clamping roller is fully locked to prevent slippage. The second servo motor 402 is started, driving the conveying roller 401 to rotate and push the wire harness at a constant speed (programmable setting, such as 20mm / s). The wire harness passes through the clamping area, through the through hole on the side wall of the L-shaped carrier plate, and is gradually inserted into the inside of the rubber sleeve. During the conveying process, the laser continuously monitors the process. If rebound or jamming occurs, the process will be stopped immediately and an alarm will be triggered. Phase 5: Complete Exit and Loop Preparation When the sensor detects the wire harness in place, the conveying stops, cylinder 501 retracts, the clamping rollers release, and hydraulic cylinder 302 rises to make room for the next operation. The moving mechanism returns to its initial position and waits for the next workpiece to arrive. The entire process takes an average of about 3.5-4.2 seconds per workpiece, which is nearly 4 times more efficient than manual operation.

[0018] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A rubber sleeve machine for producing automotive wiring harnesses, comprising a base plate (102), characterized in that, A moving mechanism is installed on the upper end of the base plate (102), a lifting structure is installed on the upper end of the moving mechanism, an L-shaped bearing plate (303) is installed on the upper end of the lifting structure, two clamping mechanisms are installed on the L-shaped bearing plate (303), and a conveying structure is provided between the two clamping mechanisms. The moving mechanism includes mounting blocks (202) fixed on both sides of the upper end of the base plate (102), and a stud (203) rotatably connected between the two mounting blocks (202). One end of the stud (203) is connected to a first servo motor (201), and a moving block is threaded onto the stud (203). A moving plate (301) is fixed on the moving block. The lifting structure includes hydraulic cylinders (302) fixed on both sides of the upper end of the movable plate (301), and the piston rod ends of the hydraulic cylinders (302) are fixed on both sides of the lower end of the L-shaped support plate (303). The clamping mechanism includes a top plate (502) fixed on both sides of the upper end of the L-shaped support plate (303). A cylinder (501) is fixed at the upper end of the top plate (502). A U-shaped mounting part (503) is connected to the piston rod end of the cylinder (501). A clamping roller (504) is rotatably connected to the U-shaped mounting part (503).

2. The rubber sleeve machine for automotive wiring harness production according to claim 1, characterized in that: The conveying structure includes a second servo motor (402) fixed on one side of the L-shaped support plate (303). The output shaft of the second servo motor (402) is connected to a conveying roller (401). The upper end of the conveying roller (401) passes through the side wall of the L-shaped support plate (303) and extends between two clamping rollers (504).

3. The adhesive sleeve machine for automotive wiring harness production according to claim 1, characterized in that: Two guide rods (204) are fixed between the two mounting blocks (202), and the moving block passes through the guide rods (204). One end of the first servo motor (201) is fixed to one side of one of the mounting blocks (202).

4. The adhesive sleeve machine for automotive wiring harness production according to claim 1, characterized in that: A limiting plate (603) is fixed on one side of the L-shaped support plate (303), and a limiting hole (602) is provided on the limiting plate (603).

5. The adhesive sleeve machine for automotive wiring harness production according to claim 1, characterized in that: A laser scanner (601) is fixed to one end of one of the top plates (502).

6. The adhesive sleeve machine for automotive wiring harness production according to claim 1, characterized in that: The base plate (102) has mounting holes (101) at its four upper corners.

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