Door plate six-axis screw locking equipment

By designing a six-axis screw-locking device for door panels, and utilizing components such as a fixed carrier, an electric rotary table, and a vacuum suction cup, the position and orientation of the robotic arm and the door panel are coordinated, solving the problems of low screw-locking efficiency and door panel scratches in existing technologies, and achieving efficient and damage-free screw-locking.

CN224073783UActive Publication Date: 2026-04-03JINAN JIANGLONG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing six-axis robotic arms are prone to bumping into the plastic of car door panels when tightening screws, and have low production efficiency, especially when tightening screws in grooves.

Method used

A six-axis screw tightening device for door panels was designed, including a fixed carrier, an electric rotary table, a dual-axis motor, a vacuum suction cup, and a six-axis robot. By coordinating the position and orientation of the robot with the door panel, the screw tightening is ensured to proceed smoothly.

Benefits of technology

It improves the efficiency of screw tightening, avoids scratching the door panel, realizes the coordinated adjustment between the robotic arm and the door panel, and ensures that the screws smoothly enter the groove and tighten.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224073783U_ABST
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Abstract

The utility model relates to the technical field of automobile door panel screw locking equipment, in particular to door panel six-axis screw locking equipment. Comprising a fixed carrier installed on a conveying device, an electric rotating table is installed on the fixed carrier, and a conveying frame composed of an outer side plate, positioning plates in front of and behind the outer side plate and a bottom plate at the bottom is fixed to the electric rotating table; arc guide rails are arranged on the inner sides of the front positioning plate and the rear positioning plate, a sliding block on each arc guide rail is laterally fixed, and clamping blocks matched with the two bottom corners of the door plate are installed on the sliding blocks. A double-shaft motor is fixed to the inner side of the outer side plate, supporting beams are fixed to output shafts on the two sides of the double-shaft motor, and the supporting beams are connected with vacuum suction cups through an upper fixing beam, a lower fixing beam and air columns installed on the fixing beams. According to the six-axis screw locking manipulator, horizontal plane rotation and vertical deflection can be achieved, so that the orientation directions of the six-axis screw locking manipulator and all screws on a door plate are coordinated, and locking of the six-axis screws is better facilitated.
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Description

Technical Field

[0001] This utility model relates to the technical field of automotive door panel screw locking equipment, and in particular to a six-axis screw locking equipment for door panels. Background Technology

[0002] In the manufacturing process of car door panels, six-axis robotic arms are often used to tighten the pre-tightened screws on the door panels. Some processing plants still use manual tightening, which is extremely inefficient. When tightening screws on the door panel, the conventional six-axis robotic arm often encounters problems because the screws are located in different positions on the car door panel and have different orientations. For screws in the grooves of the door handle or other locations, the robotic arm often bumps into the plastic of the door panel around the screw because it does not extend in the correct direction, causing scratches on the door panel. In addition, some door panels are often fixed by edge snap-fit, which makes loading and unloading difficult.

[0003] Therefore, the end position of the robotic arm needs to be coordinated with the overall position of the car door panel to ensure that it can smoothly extend into some of the grooves to lock the door panel screws, while improving production efficiency. To address this issue, a six-axis screw locking device for door panels is urgently needed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and achieve the above-mentioned functions, this utility model provides a door panel six-axis screw locking device.

[0005] This utility model is achieved through the following technical solution:

[0006] A six-axis screw locking device for door panels includes a fixed carrier installed on a conveying device. An electric rotary table is installed on the fixed carrier. A conveying frame consisting of an outer side plate, positioning plates at the front and rear of the outer side plate, and a bottom plate is fixed on the electric rotary table. The conveying frame has openings on the inner side and top.

[0007] Arc guide rails are provided on the inner sides of the front and rear positioning plates, and the sliders on each arc guide rail are laterally fixed. Each slider is equipped with a locking block that matches the two bottom corners of the door panel.

[0008] A dual-axis motor is fixed on the inner side of the outer side plate. Support beams are fixed on the output shafts on both sides of the dual-axis motor. The support beams are connected to the vacuum suction cup through two upper and lower fixed beams and an air column installed on the fixed beams.

[0009] A six-axis robotic arm is installed on one side of the inner side of the conveying device, and a screw locking device is mounted on it.

[0010] Furthermore, the center of the arc guide rail is the center of the output shaft of the dual-axis motor, and both ends of the arc guide rail are equipped with baffles to prevent derailment.

[0011] Furthermore, each of the card slots is provided with an L-shaped groove, and a buffer pad is fixed in the groove, the buffer pad abutting against the door panel.

[0012] Furthermore, the support beam is a V-shaped structure with the opening facing inward and a reinforcing rib fixed in the middle.

[0013] Furthermore, both the air column and the fixed beam are hollow inside and are equipped with pipes connected to the vacuum suction cup.

[0014] Furthermore, a controller connected to a dual-axis motor and a vacuum generator connected to the internal pipeline of the fixed beam are installed on the outer side of the outer plate.

[0015] The beneficial effects of this utility model are:

[0016] This utility model is based on a fixed carrier fixed on a conveying device, which can rotate horizontally and deflect vertically to coordinate the orientation of the six-axis screw-locking robot and the screws on the door panel, which is more conducive to the locking of the six-axis screws. Attached Figure Description

[0017] Figure 1 A three-dimensional schematic diagram of the present invention viewed from the outside;

[0018] Figure 2 A three-dimensional schematic diagram of the present invention viewed from the inside;

[0019] Figure 3 This is a schematic diagram of the internal structure of the conveyor frame after removing a positioning plate at the front end.

[0020] Figure 4 This is a diagram showing the distribution of screws that need to be tightened on a standard car door panel;

[0021] In the picture:

[0022] 1. Fixed carrier; 101. Conveying device;

[0023] 2. Electric rotary table,

[0024] 3. Base plate, 301; outer side plate, 302; positioning plate.

[0025] 4. Arc-shaped guide rail; 401. Slider; 402. Baffle; 403. Locking block; 404. Buffer pad.

[0026] 5. Vacuum suction cup, 501, air column,

[0027] 6. Fixed beam, 7. Support beam, 701. Reinforcing rib, 8. Dual-axis motor.

[0028] 9. Controller; 901. Vacuum generator;

[0029] 10. Six-axis robot arm; 1001. Screw locking device; 11. Door panel. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 4 As shown, this utility model includes a fixed carrier 1 installed on a conveying device 101. The conveying device 101 can be a precision chain link conveyor line, etc. The figure is only an example and does not represent the use of a non-fixed conveying device such as a conveyor belt. The fixed carrier 1 is also a conventional technology, which is well known to those in the field of mechanical equipment, so it will not be described in detail. An electric rotary table 2 is installed on the fixed carrier 1 to provide a certain angle of deflection. A conveying frame composed of an outer side plate 301, positioning plates 302 in front of and behind the outer side plate 301, and a bottom plate 3 is fixed on the electric rotary table 2 to support the door panel 11. The inner side and top of the conveying frame are open so that the door panel 11 will not be interfered with when it is deflected.

[0033] Arc guide rails 4 are provided on the inner side of the front and rear positioning plates 302, and the sliders 401 on each arc guide rail 4 are fixed laterally. Each slider 401 is equipped with a locking block 403 that matches the two bottom corners of the door panel 11 to support the door panel 11.

[0034] A dual-axis motor 8 is fixed on the inner side of the outer side plate 301. Support beams 7 are fixed on the output shafts on both sides of the dual-axis motor 8. The fixing method can be welding or fixing by bushing clamping. The support beams 7 are connected to the vacuum suction cup 5 through two upper and lower fixed beams 6 and an air column 501 installed on the fixed beams 6.

[0035] A six-axis robot arm 10 is provided on one side of the inner side of the conveying device 101, and a screw locking device 1001 is installed on it for screw locking with the deflected door panel 11.

[0036] The center of the arc guide rail 4 is the center of the output shaft of the dual-axis motor 8 to avoid misalignment; the arc guide rail 4 also provides a guide for the deflection angle of the door panel 11 to face inward (or outward), and both ends of the arc guide rail 4 are equipped with baffles 402 to prevent derailment.

[0037] Each of the locking blocks 403 is provided with an L-shaped groove, and a buffer pad 404 is fixed in the groove. The buffer pad 404 abuts against the door panel 11 to prevent the metal components from scratching the car door panel during movement.

[0038] The support beam 7 is a V-shaped structure with an inward opening and a reinforcing rib 701 fixed in the middle. While ensuring a certain strength support, it also disperses the positions of several vacuum suction cups 5 to fix the outer wall of the arc-shaped car door panel.

[0039] The air column 501 and the fixed beam 6 are hollow inside and are both equipped with pipes connected to the vacuum suction cup 5.

[0040] The outer side of the outer plate 301 is equipped with a controller 9 connected to the dual-axis motor 8 and a vacuum generator 901 connected to the internal pipeline of the fixed beam 6. The controller 9 has a built-in conventional single-chip microcomputer or PLC unit, which enables the components to control the rotation and start / stop of the motor. The vacuum generator 901 provides suction force for the vacuum suction cup 5.

[0041] The working principle of this utility model is as follows: when the conveying device 101 is briefly stopped at a suitable position, the screw locking device 1001 on the corresponding six-axis robot 10 will move. At the same time, the preset electric rotary table 2 and dual-axis motor 8 will rotate under program control, thereby aligning with the screw locking device 1001 and making the pre-tightened screws completely locked. The loading and unloading process of the door panel 11 is existing technology and will not be described in detail. During the loading and unloading process, the vacuum suction cup 5 will control whether to suction the door panel 11 to prevent it from tipping over.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A door panel six-axis screw locking apparatus comprising a stationary carrier (1) mounted on a conveyor device (101), characterized in that: The fixed carrier (1) is provided with an electric rotary table (2), and the electric rotary table (2) is fixedly provided with a conveying frame composed of an outer side plate (301), positioning plates (302) in front of and behind the outer side plate (301), and a bottom plate (3); the conveying frame is open at the inner side and the top; Each of the positioning plates (302) is provided with an arc guide rail (4), and a slider (401) is fixed on each of the arc guide rails (4); the slider (401) is provided with a clamping block (403) matched with two bottom corners of a door plate (11); The outer side plate (301) is fixedly provided with a double-shaft motor (8), and a support beam (7) is fixed on the output shaft of the double-shaft motor (8); the support beam (7) is connected with a vacuum chuck (5) through two fixed beams (6) and an air column (501) mounted on the fixed beams (6). One side of the conveying device (101) is provided with a six-axis manipulator (10), and the six-axis manipulator (10) is provided with a screw locking device (1001).

2. The door panel six-axis screw locking apparatus according to claim 1, wherein: The center of the arc guide rail (4) is the center of the output shaft of the double-shaft motor (8), and the arc guide rail (4) is provided with a baffle (402) at both ends to prevent derailment.

3. The door panel six-axis screw locking apparatus of claim 1, wherein: Each of the clamping blocks (403) is provided with an L-shaped groove, and a buffer pad (404) is fixed in the groove; the buffer pad (404) abuts against the door plate (11).

4. The door panel six-axis screw locking apparatus of claim 1, wherein: The support beam (7) is a V-shaped structure with an opening facing inward, and a reinforcing rib (701) is fixed in the middle of the support beam (7).

5. The door panel six-axis screw locking apparatus of claim 1, wherein: The air column (501) and the fixed beam (6) are hollow and are provided with pipelines connected with the vacuum chuck (5).

6. The door panel six-axis screw locking apparatus of claim 1, wherein: The outer side plate (301) is provided with a controller (9) connected with the double-shaft motor (8) and a vacuum generator (901) connected with the pipelines in the fixed beam (6).