Automatic connecting device for automobile wire harness and terminal strip and using method of automatic connecting device

Through the automatic connection device that works in concert with the electric conveyor belt and the visual camera, the problem of low efficiency and unstable accuracy of wiring harness and terminal strip connection is solved, efficient and accurate automatic batch connection is achieved, and the defect rate is reduced and product quality is ensured.

CN120511535APending Publication Date: 2025-08-19SUZHOU HUI AN TENG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202510712910.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

In the prior art, the connection efficiency between the wire harness and terminal strips is low and the accuracy is unstable, resulting in an increase in the defect rate and cannot meet the requirements of industrial large-scale production.

Method used

An automatic connection device that uses an electric conveyor belt, movable electric suction cup, vision camera and robot work together. The wiring harness and terminal strips are accurately positioned through the visual camera, and the position is automatically determined using photoelectric sensors, and combined with the mechanical transmission system to achieve automated batch connections.

Benefits of technology

It improves connection efficiency, reduces manual operation time, enhances connection accuracy, reduces defective rates, and ensures the stability of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an automatic connecting device for an automobile wire harness and a terminal strip and a using method thereof, and relates to the field of automobile part manufacturing, the automatic connecting device comprises an electric conveying belt and a discharging table, a movable electric suction cup is arranged on the rear side of the electric conveying belt, and grooves are formed in the upper end and the lower end of the electric conveying belt and used for containing the terminal strip; a positioning conveying piece, a guide piece and a movable parallel clamping jaw are arranged on the front side of the electric conveying belt, and a pressing rod is movably arranged at the upper end of the electric conveying belt; the positioning conveying part is a containing plate, at least four rectangular through grooves are formed in the containing plate and used for positioning the wire harnesses, and a belt is arranged at the lower end of the containing plate and used for supporting the wire harnesses. The parallel clamping jaw and the electric suction cup are matched with the visual camera to automatically grab and accurately position the wire harnesses and the terminal strips so as to replace manual material taking and alignment, the grooves of the electric conveying belt and the rectangular through grooves of the placing plate are used for processing the multiple sets of wire harnesses and the terminal strips at the same time to achieve batch operation, and therefore the problem that the manual efficiency is low is effectively solved.
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Description

Technical Field

[0001] The present invention relates to the field of automobile component manufacturing, in particular to an automatic connecting device for an automobile wiring harness and a terminal block and a use method thereof. Background Art

[0002] The connection between the wire harness and the terminal block is a key link in achieving circuit conductivity, equipment signal transmission and power distribution. The quality of the connection directly affects the stability, safety and reliability of the electrical system.

[0003] With the existing technology, manual connection between the wire harness and the terminal block requires the preparation of wire strippers, crimping pliers, tools, wire harnesses, terminal blocks and other materials. The wire strippers are used to strip the insulation at both ends of the wire harness to expose the core wire. The core wire is inserted into the corresponding terminal and then crimped with crimping pliers. Then, according to the terminal block type (such as press-fit type, plug-in type, etc.), the wire harness is inserted into the terminal block hole and fixed. However, manual operation has the following problems: first, low efficiency; second, unstable precision, which leads to an increase in defective rate. In order to meet the requirements of industrial large-scale production, we have improved the existing solution based on actual usage to solve the problems encountered. Summary of the Invention

[0004] The main purpose of the present invention is to provide an automatic connection device for an automobile wiring harness and a terminal block and a method for using the same, which can effectively solve the problems in the background technology.

[0005] A device for automatically connecting automobile wiring harnesses and terminal blocks comprises an electric conveyor belt and a discharge table, wherein a movable electric suction cup is provided on the rear side of the electric conveyor belt, grooves are provided at the upper and lower ends of the electric conveyor belt for placing the terminal blocks, a positioning conveyor member, a guide member and a movable parallel clamp are provided on the front side of the electric conveyor belt, and a pressing rod is movably provided on the upper end of the electric conveyor belt; the positioning conveyor member is a placement plate and at least four rectangular through grooves are provided in the placement plate for positioning the wiring harness, a belt is provided at the lower end of the placement plate for supporting the wiring harness, and a roller is rotatably provided at the upper end of each rectangular through groove for conveying the wiring harness; the guide member is a baffle fixed to the rear end of the placement plate, and at least four guide holes are provided in the baffle opposite to the tail end of the rectangular through groove, an emitting photoelectric sensor and a receiving photoelectric sensor are provided at one end of the placement plate, and a visual camera is provided at the upper end of the parallel clamp and the electric suction cup.

[0006] Furthermore, the support base of the electric conveyor belt is welded to the unloading platform, and the upper end of the unloading platform is provided with at least four arc-shaped slots for aligning the wire harnesses. A second robot is fixed to the rear of the electric conveyor belt via a support frame. The actuator end of the second robot is fixed to one of the vision cameras and an electric suction cup for aligning the terminal block.

[0007] Furthermore, the support base of the electric conveyor belt is welded to one end of the placement plate, the upper end of the placement plate is fixed with a No. 1 robot, the execution end of the No. 1 robot is fixed with a No. 1 horizontal plate and the upper end of the No. 1 horizontal plate is connected to the visual camera, and the lower end of the No. 1 horizontal plate is fixed with parallel clamps for clamping and placing the wire harness.

[0008] Furthermore, the lower edge of the rectangular through groove is flush with the upper surface of the belt, and the lower surface of the placement plate is rotatably installed with a belt roller through a bearing for winding the belt. The lower surface of the roller and the upper surface of the belt are both pressed against the outer surface of the wire harness for conveying the wire harness.

[0009] Furthermore, both ends of the connecting shaft are rotatably arranged on the upper end of the placement plate through a mounting frame, and a servo motor is fixed to the upper end of the placement plate through a connecting frame. The output end of the servo motor is fixed to the connecting shaft through a coupling for driving the connecting shaft and the roller to rotate.

[0010] Furthermore, the rear end of the placement plate is fixed to the baffle by bolts, and the guide hole is trumpet-shaped and its opening is opposite to the rectangular through slot for guiding the wiring harness.

[0011] Furthermore, the rear end of the placement plate is fixed to the receiving type photoelectric sensor by means of bolts, and the transmitting type photoelectric sensor is fixed in an annular manner on the periphery of the electric conveyor belt.

[0012] Furthermore, a bracket is welded to the upper end of the placement plate and an electric telescopic rod is fixed to the lower surface of the bracket by bolts, a second horizontal plate is fixed to the output end of the electric telescopic rod, and a pressing rod is fixed to the lower surface of the second horizontal plate.

[0013] A method for using an automatic connection device for an automobile wiring harness and a terminal block, which is applied to an automatic connection device for an automobile wiring harness and a terminal block, comprises the following steps:

[0014] S1. Wire harness loading and positioning: The wire harness is pre-placed in the arc-shaped slot of the unloading table. The controller in the equipment controls the No. 1 robot to cooperate with the visual camera and parallel grippers to pick up the wire harness and accurately place it in the rectangular slot of the placement plate;

[0015] S2. Wire harness conveying: The servo motor drives the roller to rotate, and the roller and the belt below work together to move the wire harness in the rectangular slot;

[0016] S3. Terminal block loading and conveying: At the same time, the second robot uses a visual camera to locate the terminal block, uses an electric suction cup to pick up the terminal block, and places it in the annular grooves on the upper and lower surfaces of the electric conveyor belt for conveying;

[0017] S4. Wire harness guide: When the wire harness moves to the trumpet-shaped guide hole of the guide piece, it accurately enters the wiring tube of the terminal block under the guidance of the guide hole;

[0018] S5, position detection and pause trigger: At this time, the transmitting photoelectric sensors arranged in a ring shape on the upper and lower surfaces of the electric conveyor belt are successfully connected with the receiving photoelectric sensors on the placement plate, and the controller controls the electric conveyor belt to stop;

[0019] S6. Press-fit connection: The electric telescopic rod drives the pressing rod to move downward, and the pressing rod enters the through hole connected to the wiring tube, flattens the wiring tube, thereby realizing automatic connection between the wire harness and the terminal block.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This device uses parallel grippers and electric suction cups, combined with a visual camera, to automatically grasp and precisely position wire harnesses and terminal blocks, replacing manual material removal and alignment. The device utilizes grooves in the electric conveyor belt and rectangular slots in the positioning conveyor to simultaneously process multiple sets of wire harnesses and terminal blocks for batch processing. A mechanical transmission system consisting of rollers and belts automatically conveys the wire harnesses, replacing manual individual transfers. Photoelectric sensors automatically determine when the wire harnesses are in place, reducing manual visual confirmation and downtime. Furthermore, a lifting pressing rod can be used to complete multiple crimping operations with a single press, replacing manual individual crimping operations. This effectively solves the problem of low labor efficiency.

[0022] 2. The trumpet-shaped guide hole in the guide part corresponds to the rectangular through-slot in the positioning conveyor part, which can automatically correct the direction of the wire harness, further improving the connection accuracy and reducing the connection failure rate caused by position deviation;

[0023] 3. The visual camera is not only used for positioning, but also can be used to detect the pressing quality after connection, so as to detect unqualified products in time and ensure the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 Shown is a partial schematic diagram of the present invention.

[0026] Figure 3 Shown is a schematic diagram of the positioning conveying member of the present invention.

[0027] Figure 4 Shown is a right side schematic view of the present invention.

[0028] Figure 5 The present invention is shown Figure 4 Enlarged schematic diagram at point a in the middle.

[0029] Figure 6 Shown is a schematic diagram of a guide member of the present invention.

[0030] Figure 7 Shown is a front schematic view of the present invention;

[0031] Figure 8 Shown is a schematic diagram of the connection between the pressing rod and the driving telescopic rod of the present invention.

[0032] Description of main component symbols

[0033] 1. Electric conveyor belt; 2. Unloading table; 3. Wiring harness; 4. Positioning conveyor; 41. Placement plate; 42. Rectangular through slot; 43. Belt; 44. Roller; 45. Connecting shaft; 46. Servo motor; 47. Belt roller; 5. Robot arm No. 1; 6. Robot arm No. 2; 7. Vision camera; 8. Parallel gripper; 9. Electric suction cup; 10. Pressing rod; 11. Terminal block; 12. Wiring tube; 13. Through hole; 14. Guide; 141. Baffle; 142. Guide hole; 15. Groove; 16. Transmitting photoelectric sensor; 17. Receiving photoelectric sensor; 18. Arc slot; 19. Horizontal plate No. 1; 20. Horizontal plate No. 2; 21. Electric telescopic rod.

[0034] The above description of the main component symbols is combined with the accompanying drawings and specific embodiments to further illustrate the present invention in detail. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example 1

[0037] The present embodiment provides an automatic connection device for automobile wiring harness and terminal block, comprising an electric conveyor belt 1 and a discharge table 2, a movable electric suction cup 9 is provided on the rear side of the electric conveyor belt 1, grooves 15 are provided at the upper and lower ends of the electric conveyor belt 1 for placing the terminal block 11, a positioning conveyor member 4, a guide member 14 and a movable parallel clamp 8 are provided on the front side of the electric conveyor belt 1, and a pressing rod 10 is movably provided on the upper end of the electric conveyor belt 1; the positioning conveyor member 4 is a placement plate 41 and at least four rectangular through slots are provided in the placement plate 41 42 is used to position the wire harness 3, and a belt 43 is provided at the lower end of the placement plate 41 for supporting the wire harness 3. A roller 44 is rotatably provided at the upper end of each rectangular through slot 42 for conveying the wire harness 3; the guide member 14 is a baffle 141 fixed to the rear end of the placement plate 41, and at least four guide holes 142 are provided in the baffle 141 opposite to the tail end of the rectangular through slot 42. An emitting photoelectric sensor 16 and a receiving photoelectric sensor 17 are provided at one end of the placement plate 41, and a visual camera 7 is provided at the upper end of the parallel clamp 8 and the electric suction cup 9.

[0038] It should be noted that the visual camera 7 uses an industrial area array camera to perform high-definition shooting of the end features of the wire harness 3 (such as the shape of the cutout, the identification color ring) and the position of the terminal block 11 wiring tube 12 (such as the hole coordinates and the orientation of the tube body) to collect images containing geometric contours, and extracts the features such as the cutout edge of the wire harness 3 and the contour of the terminal block 11 wiring tube 12 through an edge detection algorithm (such as the Canny operator). The position offset (X / Y coordinate error) of the wire harness 3 / terminal block 11 is calculated by using a template matching algorithm (such as Halcon's Shape-Based Matching) or feature point matching, such as SIFT / SURF, compared with the system's pre-stored standard template, and the result is transmitted to the PLC or motion controller to drive the manipulator to adjust the grasping posture to achieve positioning guidance; the pressing quality is determined to be qualified, and the test results are fed back to the control system in real time. If unqualified, the alarm is triggered;

[0039] Servo motor 46 can be an original Japanese Oriental motor, which maintains stable pulses at high speeds, ensuring consistent wire quality and accuracy up to 0.01mm. Visual camera 7 can be an industrial camera with high resolution and fast image processing capabilities, such as the Keyence KV-7000 series. This camera can quickly and accurately identify the position and posture of wire harness 3 and terminal block 11, providing precise positioning information for the robot arm.

[0040] Transmitting photoelectric sensor 16 and receiving photoelectric sensor 17 can be through-beam photoelectric sensors, such as the Omron E3Z-T61 photoelectric sensor. These sensors offer a moderate detection distance and high stability, enabling reliable detection of whether wiring harness 3 has reached its designated position relative to terminal block 11. The electric telescopic rod 21 can be made of Hiwin, offering high precision, high load capacity, and excellent stability, enabling precise control of the downward movement of the pressing rod 10. Furthermore, the terminal pressing components and metal connectors involved in terminal block 11 and wiring harness 3, such as the DJ7021A-2.8-21 and DJ7031A-2.8-11 series terminals, are also available.

[0041] The parallel gripper 8 is an SMC MHZ2 series (repeatability ±0.02mm, gripping force 10-50N), and the electric suction cup 9 is a Pisco EP series (DC electromagnetic chuck, suction force 5-50N, response time <0.1s). The robot is a Fanuc LR Mate 200iD series, with a typical load capacity of 3-6kg and a repeatability of ±0.05mm, suitable for precise manipulation of small parts, such as picking and placing wire harnesses.

[0042] refer to Figure 1 The support base of the electric conveyor belt 1 is welded to the unloading platform 2. The upper end of the unloading platform 2 is provided with at least four arc-shaped grooves 18 for placing the wire harness 3 for easy grasping.

[0043] refer to Figure 1 The rear side of the electric conveyor belt 1 is fixed with a No. 2 robot 6 through a support frame. The execution end of the No. 2 robot 6 is fixed with one of the visual cameras 7 and the electric suction cup 9 for placing the terminal block 11 to realize automatic loading of the terminal block 11.

[0044] refer to Figures 2 to 5 The support base of the electric conveyor belt 1 is welded to one end of the placement plate 41. The upper end of the placement plate 41 is fixed with a No. 1 manipulator 5. The execution end of the No. 1 manipulator 5 is fixed with a No. 1 horizontal plate 19. The upper end of the No. 1 horizontal plate 19 is connected to the visual camera 7. The lower end of the No. 1 horizontal plate 19 is fixed with a parallel clamp 8 for clamping the wire harness 3 and placing it in the rectangular through-slot 42. The lower edge of the rectangular through-slot 42 is flush with the upper surface of the belt 43. The lower surface of the placement plate 41 is rotatably mounted with a belt roller 47 through a bearing for winding the belt 43. The lower surface of the roller 44 and the upper surface of the belt 43 are both pressed against the outer surface of the wire harness 3 for conveying the wire harness 3. The two ends of the connecting shaft 45 are rotatably set on the upper end of the placement plate 41 through a mounting frame. The upper end of the placement plate 41 is fixed with a servo motor 46 through a connecting frame. The output end of the servo motor 46 is fixed to the connecting shaft 45 through a coupling to drive the connecting shaft 45 and the roller 44 to rotate stably.

[0045] refer to Figure 6 The rear end of the placement plate 41 is fixed to the baffle 141 by bolts. The guide hole 142 is trumpet-shaped and the opening is opposite to the rectangular through slot 42 for guiding the wire harness 3 to facilitate the wire harness 3 entering the guide hole 142.

[0046] refer to Figure 2 and Figure 8 , the rear end of the placement plate 41 is fixed to the receiving photoelectric sensor 17 by bolts, and the transmitting photoelectric sensor 16 is fixed in an annular shape on the outer periphery of the electric conveyor belt 1, which is used to stop the electric conveyor belt 1 and the servo motor 46, to ensure that the pressing process of the wiring harness 3 and the terminal block 11 is accurate and stable. A bracket is welded to the upper end of the placement plate 41, and an electric telescopic rod 21 is fixed to the lower surface of the bracket by bolts. The output end of the electric telescopic rod 21 is fixed with the second horizontal plate 20, and the lower surface of the second horizontal plate 20 is fixed with the pressing rod 10. It should be noted that a plurality of transmitting photoelectric sensors 16 are respectively fixed to the left end of a terminal block 11, so that each transmitting photoelectric sensor 16 is connected to the receiving photoelectric sensor 17 for docking, so that each terminal block 11 is combined with each group of wiring harnesses 3 in sequence;

[0047] Example 2

[0048] This embodiment provides a method for using a device for automatically connecting an automotive wiring harness and a terminal block, which is applied according to embodiment 1 of the present invention and includes the following steps:

[0049] S1. Loading and positioning of the wire harness 3: The wire harness 3 is pre-placed in the arc-shaped groove 18 of the unloading table 2. The controller in the equipment controls the No. 1 robot 5 to cooperate with the visual camera 7 and the parallel gripper 8 to grab the wire harness 3 and accurately place it in the rectangular through groove 42 of the placement plate 41;

[0050] S2, conveying the wire harness 3: the servo motor 46 drives the roller 44 to rotate, and the roller 44 and the lower belt 43 work together to move the wire harness 3 in the rectangular through slot 42;

[0051] S3. Terminal block loading and conveying: At the same time, the second manipulator 6 is positioned by the visual camera 7, and the electric suction cup 9 is used to pick up the terminal block 11 and place it in the grooves 15 provided in the annular arrangement on the upper and lower surfaces of the electric conveyor belt 1 for conveying;

[0052] S4. Guiding the wire harness 3: When the wire harness 3 moves to the trumpet-shaped guide hole 142 of the guide member 14, it accurately enters the wiring tube 12 of the terminal block 11 under the guidance of the guide hole 142;

[0053] S5, position detection and pause triggering: At this time, the transmitting photoelectric sensor 16 arranged in an annular manner on the upper and lower surfaces of the electric conveyor belt 1 is successfully connected with the receiving photoelectric sensor 17 on the placement plate 41, and the controller controls the electric conveyor belt 1 to stop;

[0054] S6. Press-fit connection: The electric telescopic rod 21 drives the press-fit rod 10 to move downward, and the press-fit rod 10 enters the through hole 13 connected to the wiring tube 12 and flattens the wiring tube 12, thereby realizing automatic connection between the wiring harness 3 and the terminal block 11.

[0055] Working principle: The wire harness 3 is pre-placed in the arc groove 18 of the unloading table 2. The controller in the equipment controls the No. 1 robot 5 to cooperate with the visual camera 7 and the parallel clamping claw 8 to pick up the wire harness 3 and accurately place it in the rectangular groove 42 of the placement plate 41; the servo motor 46 drives the roller 44 to rotate, and the roller 44 and the lower belt 43 work together to move the wire harness 3 in the rectangular groove 42; at the same time, the No. 2 robot 6 is positioned by the visual camera 7, and the electric suction cup 9 picks up the terminal block 11 and places it in the groove 15 arranged in the annular shape on the upper and lower surfaces of the electric conveyor belt 1 for conveying. Send; when the wire harness 3 moves to the trumpet-shaped guide hole 142 of the guide part 14, it accurately enters the wiring tube 12 of the terminal block 11 under the guidance of the guide hole 142; at this time, the emitting photoelectric sensors 16 arranged in a ring on the upper and lower surfaces of the electric conveyor belt 1 are successfully docked with the receiving photoelectric sensors 17 on the placement plate 41, and the controller controls the electric conveyor belt 1 to stop; the electric telescopic rod 21 drives the pressing rod 10 to move downward, and the pressing rod 10 enters the through hole 13 connected to the wiring tube 12, flattens the wiring tube 12, thereby realizing the automatic connection of the wire harness 3 and the terminal block 11.

[0056] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. An automatic connection device for automobile wiring harness and terminal block, comprising a motorized conveyor belt (1) and a discharge table (2), characterized in that: The rear side of the electric conveyor belt (1) is provided with a movable electric suction cup (9), the upper and lower ends of the electric conveyor belt (1) are provided with grooves (15) for placing terminal blocks (11), the front side of the electric conveyor belt (1) is provided with a positioning conveying member (4), a guide member (14) and a movable parallel clamping claw (8), and the upper end of the electric conveyor belt (1) is movably provided with a pressing rod (10); The positioning conveying member (4) is a placement plate (41) and at least four rectangular through slots (42) are provided in the placement plate (41) for positioning the wire harness (3); a belt (43) is provided at the lower end of the placement plate (41) for supporting the wire harness (3); and a roller (44) is rotatably provided at the upper end of each rectangular through slot (42) for conveying the wire harness (3); The guide member (14) is a baffle (141) fixed to the rear end of the placement plate (41), and at least four guide holes (142) are provided in the baffle (141) and are opposite to the rear ends of the rectangular through slots (42). An emitting photoelectric sensor (16) and a receiving photoelectric sensor (17) are provided at one end of the placement plate (41), and a visual camera (7) is provided at the upper ends of the parallel clamps (8) and the electric suction cup (9).

2. The automatic connection device for automobile wiring harness and terminal block according to claim 1, characterized in that: The support base of the electric conveyor belt (1) is welded to the unloading platform (2), and the upper end of the unloading platform (2) is provided with at least four arc-shaped grooves (18) for placing the wiring harness (3).

3. The automatic connection device for automobile wiring harness and terminal block according to claim 1, characterized in that: A second manipulator (6) is fixed to the rear side of the electric conveyor belt (1) via a support frame, and an execution end of the second manipulator (6) is fixed to one of the visual cameras (7) and the electric suction cup (9) for placing the terminal block (11).

4. The automatic connection device for automobile wiring harness and terminal block according to claim 3, characterized in that: The support base of the electric conveyor belt (1) is welded to one end of the placement plate (41), a No. 1 manipulator (5) is fixed to the upper end of the placement plate (41), a No. 1 transverse plate (19) is fixed to the execution end of the No. 1 manipulator (5), and the upper end of the No. 1 transverse plate (19) is connected to the visual camera (7), and a parallel clamp (8) is fixedly installed at the lower end of the No. 1 transverse plate (19) for clamping and placing the wiring harness (3).

5. The automatic connection device for automobile wiring harness and terminal block according to claim 1, characterized in that: The lower edge of the rectangular through groove (42) is flush with the upper surface of the belt (43); the lower surface of the placement plate (41) is rotatably mounted with a belt roller (47) via a bearing for winding the belt (43); the lower surface of the roller (44) and the upper surface of the belt (43) are both pressed against the outer surface of the wire harness (3) for conveying the wire harness (3).

6. The automatic connection device for automobile wiring harness and terminal block according to claim 1, characterized in that: The two ends of the connecting shaft (45) are rotatably arranged on the upper end of the placement plate (41) through a mounting frame. A servo motor (46) is fixed to the upper end of the placement plate (41) through the connecting frame. The output end of the servo motor (46) is fixed to the connecting shaft (45) through a coupling and is used to drive the connecting shaft (45) and the roller (44) to rotate.

7. The automatic connection device for automobile wiring harness and terminal block according to claim 6, characterized in that: The rear end of the placement plate (41) is fixed to the baffle (141) by means of bolts, and the guide hole (142) is trumpet-shaped and its opening is opposite to the rectangular through slot (42) for guiding the wiring harness (3).

8. The automatic connection device for automobile wiring harness and terminal block according to claim 1, characterized in that: The rear end of the placement plate (41) is fixed to the receiving type photoelectric sensor (17) by means of bolts, and the outer periphery of the electric conveyor belt (1) is annularly fixed with a transmitting type photoelectric sensor (16).

9. The automatic connection device for automobile wiring harness and terminal block according to claim 8, characterized in that: A bracket is welded to the upper end of the placement plate (41), and an electric telescopic rod (21) is fixed to the lower surface of the bracket via bolts. A second horizontal plate (20) is fixed to the output end of the electric telescopic rod (21), and a pressing rod (10) is fixed to the lower surface of the second horizontal plate (20).

10. A method for using an automatic connection device for an automobile wiring harness and a terminal block, which is applied to an automatic connection device for an automobile wiring harness and a terminal block according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Loading and positioning of the wire harness (3): The wire harness (3) is pre-placed in the arc groove (18) of the unloading table (2). The controller in the equipment controls the No. 1 manipulator (5) to cooperate with the visual camera (7) and the parallel clamping claw (8) to pick up the wire harness (3) and accurately place it in the rectangular through groove 42 of the placement plate (41); S2, wire harness (3) conveying: the servo motor (46) drives the roller (44) to rotate, and the roller (44) and the lower belt (43) work together to move the wire harness (3) in the rectangular through groove (42); S3. Loading and conveying the terminal block: At the same time, the second manipulator (6) is positioned by the visual camera (7), and uses the electric suction cup (9) to pick up the terminal block (11) and place it in the groove (15) provided in the annular shape on the upper and lower surfaces of the electric conveyor belt (1) for conveying; S4, guiding the wire harness (3): when the wire harness (3) moves to the trumpet-shaped guide hole (142) of the guide member (14), the wire harness (3) accurately enters the wiring tube (12) of the terminal block (11) under the guidance of the guide hole (142); S5, position detection and pause triggering: at this time, the transmitting photoelectric sensor (16) arranged in a ring shape on the upper and lower surfaces of the electric conveyor belt (1) is successfully docked with the receiving photoelectric sensor (17) on the placement plate (41), and the controller controls the electric conveyor belt (1) to stop; S6. Press-fit connection: The electric telescopic rod (21) drives the press-fit rod (10) to move downward, and the press-fit rod (10) enters the through hole (13) connected to the wiring tube (12), flattens the wiring tube (12), thereby realizing automatic connection between the wiring harness (3) and the terminal block (11).