Automatic assembly detection device for driver wire harness

Abstract

The invention discloses an automatic assembly detection device for a driver wire harness. The automatic assembly detection device comprises a tray, a horizontal movement module, a lifting transmission module and a rotation execution module, the horizontal movement module comprises a horizontal linear guide rail and a sliding block; the lifting transmission module comprises a vertical guide rail, a limiting connecting rod and a conversion mechanism for driving the vertical guide rail to move vertically; the rotation execution module comprises a wire harness automatic rotation front-back movement assembly and a wire harness rotation head. The swing rod assembly is driven by the stepping motor, rotation motion is directly converted into precise linear motion of the vertical guide rail through higher pair connection, then the linear motion is converted into rotation motion of the wire harness rotating head through another higher pair cam groove, two-stage transmission is efficiently completed in the same mechanism, the motion precision is high, and response is fast; the whole process is accurately controlled by the stepping motor, the instability of manual operation is avoided, the consistency of the depth, the angle and the torque of each time of wire harness tightening is ensured, and the production efficiency and the product percent of pass are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical automation assembly technology, and specifically relates to an automatic assembly and testing device for driver wiring harnesses. Background Technology

[0002] In the production and assembly of electronic products, automotive parts, and other fields, it is often necessary to precisely insert or tighten wire harnesses (such as cables and connectors) into the corresponding interfaces of the product. Traditional processes rely heavily on manual operation, which suffers from poor assembly consistency, low efficiency, high labor intensity, and susceptibility to improper installation or damage to wire harnesses due to human factors. Although some automated equipment has emerged on the market, it generally suffers from problems such as complex structure, inconvenient adjustment, low transmission accuracy, lack of effective protection for wire harnesses, or difficulty in adapting to multi-variety, small-batch production.

[0003] For example, some existing wire harness assembly devices use simple cylinders or motors to directly drive rotation, but their rotation angle and torque control are not precise enough, which can easily cause thread stripping or improper assembly. Other devices use cam mechanisms, but they often control the horizontal feed and rotational motion separately, resulting in complex structures and difficulty in ensuring synchronization.

[0004] Therefore, there is an urgent need to develop an automatic assembly and testing device for driver harnesses that is compact in structure, precise in transmission, has good assembly consistency, and can effectively protect the harness. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an automatic assembly and testing device for driver harnesses, which can achieve high-precision and high-efficiency automatic assembly, testing, and tightening of harnesses.

[0006] To achieve the above objectives, the specific solution adopted by the present invention is as follows: An automatic assembly and inspection device for driver wiring harnesses includes a tray, a horizontal motion module, a lifting transmission module, and a rotary execution module; The tray is horizontally positioned, and a mounting base plate is vertically positioned on its surface; The horizontal motion module includes a horizontal linear guide rail fixed on the mounting base plate and a sliding block that can slide along the horizontal linear guide rail. The lifting transmission module includes a vertical guide rail that can slide up and down along a sliding block, a limiting connecting rod fixed on the tray and rotatably connected to the vertical guide rail, and a conversion mechanism that drives the vertical guide rail to perform vertical movement. The conversion mechanism includes a stepper motor and a swing arm assembly. The stepper motor is horizontally arranged on the rear side of the mounting base plate. The swing arm assembly is located on the front side of the mounting base plate, with one end fixed to the output end of the stepper motor and the other end installed on the vertical guide rail, forming a high-pair connection, which converts the rotational operation output by the stepper motor into the reciprocating linear operation of the vertical guide rail. The rotation execution module includes an automatic forward and backward rotation component for the wire harness and a wire harness rotating head; the automatic forward and backward rotation component for the wire harness is located on the rear side of the mounting base plate; the wire harness rotating head is connected to the bottom of the vertical guide rail through a high-pair cam groove, which converts the up-and-down reciprocating linear motion of the vertical guide rail into the rotational motion of the wire harness rotating head.

[0007] As a preferred embodiment of the present invention, two horizontal motion modules are provided, located on the upper and lower sides of the mounting base plate respectively; the upper and lower ends of the vertical guide rail are slidably disposed in two sliding blocks respectively.

[0008] As a preferred embodiment of the present invention, the vertical guide rail has a guide rail connection hole in the middle; the mounting base plate has a rotary cam groove on the front side; one end of the rocker arm assembly is fixed to the output end of the stepper motor, the other end is engaged with the rotary cam groove, and is installed with the vertical guide rail through the guide rail connection hole to form a high-pair connection.

[0009] As a preferred embodiment of the present invention, a guide rail bearing is provided in the guide rail connection hole; the swing arm assembly is in the shape of an oblong plate and is installed in the guide rail connection hole through the guide rail bearing.

[0010] As a preferred embodiment of the present invention, the pallet surface is further provided with a detection mounting plate, a product conforming tool, and an adjustment plate; the detection mounting plate is located in the middle of the pallet and on both sides of the mounting base plate; the product conforming tool and the adjustment plate are located at the front and rear ends of the pallet, respectively.

[0011] As a preferred embodiment of the present invention, it further includes a testing fixture; the mounting base is vertically fixed on the testing fixture, and the lower part of the testing fixture is slidably mounted on the linear guide rail for the fixture's forward movement; the automatic rotation and forward / backward motion component of the wire harness is disposed on the testing fixture.

[0012] As a preferred embodiment of the present invention, the product contouring tooling and the adjusting plate are also installed with the pallet via a secondary positioning block.

[0013] As a preferred embodiment of the present invention, a wire harness protective foam is also provided at the wire harness rotating head.

[0014] As a preferred embodiment of the present invention, a protective cover is also provided on the front side of the mounting substrate.

[0015] Based on the above technical solution, the working principle of the present invention is as follows: First, place the workpiece to be assembled into the product contouring fixture and position it. Then, adjust the initial horizontal alignment between the wire harness rotating head and the workpiece interface using the adjusting plate and the horizontal motion module.

[0016] When the equipment is started, the stepper motor rotates according to a predetermined program. Through the cooperation of the rocker arm assembly and the rotating cam groove, it drives the vertical guide rail to move downward. During the downward movement, the high-pair cam groove at the bottom of the vertical guide rail drives the wire harness rotating head to rotate, so that the wire harness it holds is fed downward while rotating, thus screwing it into the interface of the workpiece until the preset depth or torque is reached.

[0017] The stepper motor then reverses, causing the wire harness rotating head to rotate in the opposite direction, exit, and reset, completing one assembly cycle. The entire process is highly automated and maintains consistent assembly precision.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The rocker arm assembly is driven by a stepper motor, and the rotational motion is directly converted into the precise linear motion of the vertical guide rail through the high pair connection. Then, the linear motion is converted into the rotational motion of the wire harness rotating head through another high pair cam groove. The two-stage transmission is completed efficiently in the same mechanism, with high motion accuracy and fast response. 2. The entire process is precisely controlled by a stepper motor, avoiding the instability of manual operation and ensuring the consistency of the depth, angle and torque of each wire harness tightening, which greatly improves production efficiency and product qualification rate. 3. The protective foam installed at the wire harness rotating head can effectively prevent the wire harness from wearing out during movement; the protective cover can prevent external interference and ensure operational safety; the product contouring tooling and secondary positioning block ensure the positioning accuracy of the workpiece to be assembled. 4. By adjusting the plate, horizontal linear guide rail and vertical guide rail, the position of the entire rotary actuator relative to the workpiece can be easily adjusted to meet the assembly requirements of products of different specifications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Explanation of reference numerals in the attached figures: 1. Tray; 2. Mounting base plate; 3. Horizontal linear guide rail; 4. Sliding block; 5. Vertical guide rail; 6. Limit connecting rod; 7. Stepper motor; 8. Swing rod assembly; 9. Automatic forward and backward rotation component for wire harness; 10. Wire harness rotating head; 11. Rotary cam groove; 12. Detection mounting plate; 13. Product contouring fixture; 14. Adjustment plate; 15. Detection fixture; 16. Fixture forward linear guide rail; 17. Secondary positioning block; 18. Wire harness protective foam; 19. Protective cover. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The specific implementation methods of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 , 2 As shown, this embodiment is an automatic assembly and testing device for driver wiring harnesses, including a tray 1, a horizontal motion module, a lifting transmission module, and a rotary execution module.

[0022] The tray 1 is horizontally positioned, and a detection fixture 15 is mounted on its surface. The detection fixture 15 is slidably mounted on the tooling forward linear guide rail 16. The surface of the tray 1 is also equipped with a detection mounting plate 12, a product contouring fixture 13, and an adjustment plate 14. The detection mounting plate 12 is located in the middle of the tray 1 and is positioned on both sides of the mounting base plate 2. The product contouring fixture 13 and the adjustment plate 14 are located at the front and rear ends of the tray 1, respectively, and are mounted to the tray 1 through a secondary positioning block 17. The mounting base plate 2 is vertically mounted on the detection fixture 15. A rotating cam groove 11 is opened on the front side of the mounting base plate 2, and a protective cover 19 is provided.

[0023] Two horizontal motion modules are provided, located on the upper and lower sides of the mounting base plate 2 respectively. The horizontal motion module includes a horizontal linear guide rail 3 fixed on the mounting base plate 2 and a sliding block 4 that can slide along the horizontal linear guide rail 3.

[0024] The lifting transmission module includes a vertical guide rail 5 that can slide up and down along the sliding block 4, a limiting connecting rod 6 fixed on the tray 1 and rotatably connected to the vertical guide rail 5, and a conversion mechanism that drives the vertical guide rail 5 to perform vertical movement; the upper and lower ends of the vertical guide rail 5 are respectively slidably arranged in two sliding blocks 4, and a guide rail connection hole is opened in the middle of the vertical guide rail 5, in which a guide rail bearing is fitted.

[0025] The conversion mechanism includes a stepper motor 7 and a rocker arm assembly 8. The stepper motor 7 is horizontally positioned on the rear side of the mounting base plate 2. The rocker arm assembly 8 is an oblong plate located on the front side of the mounting base plate 2. One end of the rocker arm assembly 8 is fixed to the output end of the stepper motor 7, and the other end is engaged with the rotary cam groove 11. It is also installed with the guide rail connection hole through the guide rail bearing to form a high pair connection, which converts the rotational operation output by the stepper motor 7 into the vertical reciprocating linear operation of the vertical guide rail 5.

[0026] The rotary execution module includes a wire harness automatic rotation forward and backward motion component 9 and a wire harness rotating head 10; the wire harness automatic rotation forward and backward motion component 9 is located on the rear side of the mounting base plate 2 and is mounted on the detection fixture 15; the wire harness rotating head 10 is connected to the bottom of the vertical guide rail 5 through a high-pair cam groove, which converts the up-and-down reciprocating linear motion of the vertical guide rail 5 into the rotational motion of the wire harness rotating head 10, and a wire harness protective foam 18 is also provided at the wire harness rotating head 10.

[0027] Combination Figure 1 , 2 To further explain, in this embodiment, during operation, the workpiece to be assembled is first placed into the product contouring fixture 13 and positioned. The initial horizontal alignment between the wire harness rotating head 10 and the workpiece interface is adjusted by the adjusting plate 14, the secondary positioning block 17 at the product contouring fixture 13, and the horizontal motion module.

[0028] When the equipment is started, the stepper motor 7 rotates according to a predetermined program, driving the vertical guide rail 5 to move downward through the cooperation of the rocker arm assembly 8 and the rotating cam groove 11. During the downward movement of the vertical guide rail 5, the rotating cam groove 11 at the bottom of the vertical guide rail 5 drives the wire harness rotating head 10 to rotate, so that the product wire harness it holds is screwed into the interface of the workpiece in a "feeding downward and rotating" manner until the preset depth or torque is reached.

[0029] Then the stepper motor 7 reverses, driving the wire harness rotating head 10 to rotate in the opposite direction, exit and reset, completing one assembly cycle.

[0030] Since the wire harness will bend and rub at the wire harness rotating head 10, in order to ensure the integrity of the wire harness, a wire harness protective foam 18 is added at the wire harness rotating head 10. The material of the wire harness protective foam 18 is a polymer material with elasticity and wear resistance.

[0031] Meanwhile, a protective cover 19 is provided on the front side of the mounting base plate 2, which covers at least the horizontal motion module and the lifting transmission module, and a guide hole for the wire harness to pass through can be provided below.

[0032] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. An automatic assembly and testing device for driver wiring harnesses, characterized in that, Includes a tray (1), a horizontal motion module, a lifting transmission module, and a rotary execution module; The tray (1) is horizontally arranged, and a mounting base plate (2) is vertically arranged on its surface; The horizontal motion module includes a horizontal linear guide rail (3) fixed on the mounting base plate (2) and a sliding block (4) that can slide along the horizontal linear guide rail (3); The lifting transmission module includes a vertical guide rail (5) that can slide up and down along the sliding block (4), a limiting connecting rod (6) fixed on the tray (1) and rotatably connected to the vertical guide rail (5), and a conversion mechanism that drives the vertical guide rail (5) to perform vertical movement; the conversion mechanism includes a stepper motor (7) and a swing arm assembly (8); the stepper motor (7) is horizontally arranged on the rear side of the mounting base plate (2); the swing arm assembly (8) is located on the front side of the mounting base plate (2), one end is fixed to the output end of the stepper motor (7), and the other end is installed with the vertical guide rail (5) to form a high pair connection, which converts the rotational operation output by the stepper motor (7) into the vertical reciprocating linear operation of the vertical guide rail (5); The rotation execution module includes a wire harness automatic rotation forward and backward motion component (9) and a wire harness rotating head (10); the wire harness automatic rotation forward and backward motion component (9) is disposed on the rear side of the mounting base plate (2); the wire harness rotating head (10) is connected to the bottom of the vertical guide rail (5) through a high-pair cam groove, which converts the up-and-down reciprocating linear movement of the vertical guide rail (5) into the rotational movement of the wire harness rotating head (10).

2. The automatic assembly and testing device for driver harnesses according to claim 1, characterized in that, Two horizontal motion modules are provided, located on the upper and lower sides of the mounting base plate (2) respectively; the upper and lower ends of the vertical guide rail (5) are slidably disposed in two sliding blocks (4).

3. The automatic assembly and testing device for driver harnesses according to claim 1, characterized in that, The vertical guide rail (5) has a guide rail connection hole in the middle; the mounting base plate (2) has a rotary cam groove (11) on the front side; one end of the swing arm assembly (8) is fixed to the output end of the stepper motor (7), and the other end is engaged with the rotary cam groove (11), and is installed with the vertical guide rail (5) through the guide rail connection hole to form a high pair connection.

4. The automatic assembly and testing device for driver harnesses according to claim 3, characterized in that, The guide rail connection hole is fitted with a guide rail bearing; the rocker arm assembly (8) is a waist-shaped plate and is installed with the guide rail connection hole through the guide rail bearing.

5. The automatic assembly and testing device for driver harnesses according to claim 1, characterized in that, The surface of the tray (1) is also equipped with a detection mounting plate (12), a product contouring fixture (13), and an adjustment plate (14); the detection mounting plate (12) is located in the middle of the tray (1) and on both sides of the mounting base plate (2); the product contouring fixture (13) and the adjustment plate (14) are located at the front and rear ends of the tray (1), respectively.

6. The automatic assembly and testing device for driver harnesses according to claim 1, characterized in that, It also includes a testing fixture (15); the mounting base plate (2) is vertically fixed on the testing fixture (15), and the lower part of the testing fixture (15) is slidably mounted on the fixture forward linear guide rail (16); the wire harness automatic rotation forward and backward motion component (9) is set on the testing fixture (15).

7. The automatic assembly and testing device for driver wiring harnesses according to claim 5, characterized in that, The product contouring fixture (13) and the adjusting plate (14) are also installed with the pallet (1) via a secondary positioning block (17).

8. The automatic assembly and testing device for driver wiring harnesses according to claim 1, characterized in that, The wire harness rotating head (10) is also provided with wire harness protective foam (18).

9. The automatic assembly and testing device for driver wiring harnesses according to claim 1, characterized in that, A protective cover (19) is also provided on the front side of the mounting base plate (2).

Images