Gluing robot for glass automobile production

By introducing a tilting fixture and a three-way actuator into the glue-applying robot, combined with a dual fixing mode of positioning rollers and suction cups, the problems of glass positioning errors and safety hazards are solved, and a high-precision and high-efficiency glue-applying process is achieved.

CN224157164UActive Publication Date: 2026-04-24CHONGQING KUFA AUTOMATION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING KUFA AUTOMATION EQUIPMENT CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing glue-applying robots lack auxiliary positioning structures in glass automobile production, resulting in large positioning errors and the inability of the tooling table to tilt, increasing labor intensity and safety hazards.

Method used

The tooling adopts a dual fixing mode of tilting tooling table combined with positioning rollers and suction cups. The drive component and auxiliary hydraulic cylinder synchronously drive the tooling table to perform arc-shaped movement, and combined with a three-way actuator, high-precision glue application is achieved.

Benefits of technology

It significantly reduces positioning errors, minimizes the risk of collisions between glass and mechanical structures, improves operational safety and production efficiency, and ensures the accuracy and stability of the adhesive application position.

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Abstract

The utility model provides a gluing robot for glass automobile production, which comprises a working table, an inclined tool table is rotatably mounted on the working table, the output end of a driving part fixedly mounted outside the working table is fixed with the inclined tool table, an auxiliary hydraulic cylinder is mounted in the working table in a hinged manner, and the auxiliary hydraulic cylinder is fixed on the working table. The output end of the rotating shaft is rotationally connected with the inclined tool table; two symmetrically-arranged supporting frames are fixedly installed on the workbench, a longitudinal actuator is fixedly installed on each supporting frame, a transverse actuator is installed between the two longitudinal actuators, the output end of a lifting cylinder fixedly installed on the transverse actuator is fixedly connected with a lifting frame, and a gluing head is installed on the lifting frame. The inclined tool table is provided with the positioning idler wheels and the suction cups, double fixation of mechanical positioning and vacuum adsorption is formed, positioning errors are reduced, and gluing accuracy is guaranteed. The driving component and the auxiliary hydraulic cylinder drive synchronously, the inclination angle is adjusted, feeding and discharging are convenient, and safety is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of adhesive coating technology, and in particular relates to an adhesive coating robot used in glass automobile production. Background Technology

[0002] In the automobile manufacturing process, one of the processing steps is applying adhesive to automotive glass. Currently, adhesive application robots are commonly used to replace human labor, improving production efficiency and application accuracy. For example, Chinese utility model patent document CN221319806U describes an adhesive application robot for automobile glass production, which achieves automatic adhesive application through automated design. However, this patented device still has the following technical problems: First, it mainly uses simple suction cups to adsorb and fix the glass, lacking an auxiliary positioning structure, resulting in a large positioning error of the glass on the tooling table, affecting the accuracy of the adhesive application position; Second, the suction cups are fixedly installed on the worktable, and the tooling table cannot tilt. Operators must place the glass vertically, which not only increases labor intensity but also easily causes the glass to accidentally collide with the mechanical structure above during loading and unloading, posing a safety hazard and potentially damaging the glass.

[0003] Therefore, it is essential to invent a glue-applying robot for glass automobile production. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a glue-applying robot for glass automobile production, including a worktable, a tilting fixture, a drive component, an auxiliary hydraulic cylinder, a support frame, a longitudinal actuator, a transverse actuator, a lifting cylinder, a lifting frame, and a glue-applying head. The tilting fixture is rotatably mounted on the worktable. The output end of the drive component, which is fixedly mounted outside the worktable, is fixed to the tilting fixture. The auxiliary hydraulic cylinder is hinged inside the worktable, and its output end is rotatably connected to the tilting fixture. Two symmetrically arranged support frames are fixedly mounted on the worktable. A longitudinal actuator is fixedly mounted on each support frame, and a transverse actuator is installed between the two longitudinal actuators. The output end of the lifting cylinder, which is fixedly mounted on the transverse actuator, is fixedly connected to the lifting frame. The glue-applying head is mounted on the lifting frame.

[0005] Preferably, the inclined tooling table includes a tooling platform, positioning rollers, connecting columns, suction cups, negative pressure pipes, a negative pressure air pump, and a rotating shaft. The rotating shaft, which is fixedly installed at one end of the tooling platform, is rotatably mounted on the worktable. One end of the shaft rotatably passes through the worktable and is fixed to the output end of an externally fixed drive component. The tooling platform rotatably arranges the positioning rollers and the connecting columns are fixedly installed. Each connecting column has a suction cup installed at its upper end and its lower end connected to the negative pressure pipe. A negative pressure air pump is installed on the negative pressure pipe.

[0006] Preferably, the workbench has a slot above it for installing the tooling platform, and inside it is space for installing the auxiliary hydraulic cylinder, as well as a base for rotatably mounting the auxiliary hydraulic cylinder. The output end of the auxiliary hydraulic cylinder is rotatably connected to a U-shaped piece fixedly mounted below the other end of the tooling platform.

[0007] Preferably, the auxiliary hydraulic cylinder and the drive component are driven synchronously, which allows the tooling platform to move along an arc-shaped trajectory along the center of the rotating shaft at one end.

[0008] Preferably, the tooling platform is located between the two support frames, and there is a clearance area between the tooling platform and the support frame.

[0009] Preferably, the longitudinal actuator installed on the support frame allows the transverse actuator to perform longitudinal reciprocating motion, the transverse actuator allows the lifting cylinder to perform transverse reciprocating motion, the lifting cylinder allows the lifting frame to perform vertical reciprocating motion, and the glue applicator installed on the lifting cylinder is connected to the glue storage tank through a pipeline in conjunction with the glue delivery pump.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This utility model features an inclined tooling table with a combination structure of positioning rollers and suction cups. The positioning rollers can pre-position the glass edge, and together with the suction force generated by the suction cups through the negative pressure air pump, a dual fixing mode of "mechanical positioning + vacuum adsorption" is formed, which significantly reduces the positioning error of the glass and ensures the accuracy of the glue application position.

[0012] The driving component of this utility model synchronously drives the tooling table to make an arc-shaped tilting motion along the center of the rotating shaft, so that the tooling table can be adjusted to an angle that is convenient for operators to load and unload materials. This avoids the inconvenience of straight up and down operation, reduces labor intensity, effectively reduces the risk of accidental collision between the glass and the mechanical structure above, and improves operational safety.

[0013] Furthermore, the tilting motion of the tooling table and the trajectory motion of the dispensing head are both automatically controlled by the drive components and actuators, reducing manual intervention and improving production efficiency. The combination of negative pressure adsorption and mechanical positioning, as well as the high-precision control of the motion mechanism, ensures the stability and reliability of the dispensing process, making it suitable for large-scale automated production scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a partial cross-sectional structural diagram of the present invention.

[0016] Figure 3 This is a structural schematic diagram of the inclined tooling table of this utility model.

[0017] In the picture:

[0018] 1. Workbench, 2. Inclined fixture table, 21. Fixture platform, 22. Positioning roller, 23. Connecting column, 24. Suction cup, 25. Negative pressure pipe, 26. Negative pressure air pump, 27. Rotary shaft, 3. Drive component, 4. Auxiliary hydraulic cylinder, 5. Support frame, 6. Longitudinal actuator, 7. Lateral actuator, 8. Lifting cylinder, 9. Lifting frame, 10. Glue applicator head. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, 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 the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown:

[0022] This utility model provides a glue-applying robot for glass automobile production, comprising a worktable 1, an inclined fixture 2, a drive component 3, an auxiliary hydraulic cylinder 4, a support frame 5, a longitudinal actuator 6, a transverse actuator 7, a lifting cylinder 8, a lifting frame 9, and a glue-applying head 10. The inclined fixture 2 is rotatably mounted on the worktable 1. The output end of the drive component 3, which is fixedly mounted externally to the worktable 1, is fixed to the inclined fixture 2. The auxiliary hydraulic cylinder 4 is hinged inside the worktable 1, and its output end is rotatably connected to the inclined fixture 2. Two symmetrically arranged support frames 5 are fixedly mounted on the worktable 1. A longitudinal actuator 6 is fixedly mounted on each support frame 5. A transverse actuator 7 is installed between the two longitudinal actuators 6. The output end of the lifting cylinder 8, which is fixedly mounted on the transverse actuator 7, is fixedly connected to the lifting frame 9. The glue-applying head 10 is mounted on the lifting frame 9.

[0023] Furthermore, the inclined fixture table 2 consists of a fixture platform 21, positioning rollers 22, connecting columns 23, suction cups 24, negative pressure pipes 25, a negative pressure air pump 26, and a rotating shaft 27. The fixture platform 21 is made of aluminum alloy, and one end of it is rotatably connected to the worktable 1 via the rotating shaft 27. The rotating shaft 27 passes through the worktable 1 and is fixedly connected to the output shaft of the external drive component 3 via a key. The drive component 3 can be a servo motor, providing rotational power to the fixture platform 21. Four sets of positioning rollers 22 are evenly distributed on the upper surface of the fixture platform 21. These are polyurethane-coated rollers used to support the workpiece and reduce friction. Multiple connecting columns 23 are vertically fixed on its inner side. The columns are hollow stainless steel tubes, with circular rubber suction cups 24 installed at the upper end and connected to the negative pressure pipe 25 at the lower end via quick-connect couplings. The negative pressure pipe 25 is laid along the bottom of the tooling platform 21 and connected to the negative pressure air pump 26. The air pump 26 is fixed to one end of the negative pressure pipe 25 and uses air pressure to control the suction cup 24 to adsorb the workpiece, ensuring stability during processing.

[0024] Furthermore, a rectangular slot adapted to the tooling platform 21 is provided on the top of the workbench 1. The depth of the slot is consistent with the thickness of the tooling platform 21 to ensure that its surface is flush when rotating. A cavity is reserved below the slot for installing the auxiliary hydraulic cylinder 4 and its base. The base is fixed to the internal frame of the workbench 1 by bolts. The tail of the auxiliary hydraulic cylinder 4 is rotatably connected to the base, and the front end of the piston rod is hinged to the bottom of the other end of the tooling platform 21 through a U-shaped part (not shown, but can be understood as a connecting part). The U-shaped part is made of high-strength cast steel and is connected to the end of the piston rod by a pin, allowing the tooling platform 21 to tilt around the pivot 27. The extension and retraction stroke of the hydraulic cylinder 4 matches the tilt angle (0°-45°) of the tooling platform 21, and the angle can be precisely adjusted in conjunction with the drive component 3.

[0025] Furthermore, the auxiliary hydraulic cylinder 4 and the drive component 3 are driven synchronously by the control system. The drive component 3 is responsible for the horizontal rotation of the tooling platform 21, while the hydraulic cylinder 4 is responsible for adjusting the tilt angle. When the two work together, the tooling platform 21 moves along an arc-shaped trajectory centered on the rotating shaft 27. For example, when the workpiece needs to be processed at a 30° tilt angle, the drive component 3 first drives the tooling platform 21 to rotate while the auxiliary hydraulic cylinder 4 pushes it to tilt to the target angle, ensuring that the workpiece is in the optimal processing posture. The control circuit uses PLC programming and preset motion parameters to avoid mechanical interference.

[0026] Furthermore, the support frame 5 is a steel structure frame symmetrically arranged on both sides of the workbench 1, with a height higher than the maximum tilt position of the tooling platform 21. A 1000mm clearance area is reserved between the two to ensure that the tooling platform 21 does not collide with the support frame 5 during rotation and tilting. The columns of the support frame 5 are fixed to the workbench 1 with anchor bolts, and a longitudinal actuator 6 is installed on the crossbeam, its position aligned with the center area of ​​the tooling platform 21 to ensure the coverage area of ​​the glue applicator 10 above the workpiece.

[0027] Furthermore, a longitudinal actuator 6 is fixed on the crossbeam of the support frame 5, employing a ball screw module, which can drive the transverse actuator 7 to reciprocate along the length of the workpiece. The transverse actuator 7 is a linear guide slide, mounted on the slider of the longitudinal actuator 6, which can drive the lifting cylinder 8 to move along the width of the workpiece. The lifting cylinder 8 is an electric push rod, with its lower end connected to the lifting frame 9, driving the glue applicator head 10 to perform vertical lifting motion. The glue applicator head 10 is made of stainless steel, and its internal channel is connected to the glue pump via a high-pressure hose. The glue pump draws glue from the glue storage tank and delivers it to the glue applicator head 10 under pressure through pipelines, achieving precise glue application.

[0028] The working principle is as follows: First, the workpiece to be coated is placed on the tooling platform 21 of the inclined tooling table 2. The positioning roller 22 carries the workpiece and initially positions it. The negative pressure air pump 26 is started so that the suction cup 24 can adsorb the workpiece through the connecting column 23 to ensure stability during processing.

[0029] Next, the drive component 3 (such as a servo motor) drives the tooling platform 21 to rotate horizontally to the designated position via the rotating shaft 27. At the same time, the auxiliary hydraulic cylinder 4 moves synchronously, and its piston rod extends and retracts to push the tooling platform 21 to make an arc-shaped tilting motion around the rotating shaft 27, adjusting it to the target processing angle (0°-45°). The two work together through the PLC control system to achieve precise adjustment of the workpiece posture.

[0030] Then, the longitudinal actuator 6 (ball screw module) on the support frame 5 drives the transverse actuator 7 (linear guide slide) to move along the length direction (Y-axis) of the workpiece. The transverse actuator 7 then drives the lifting cylinder 8 (electric push rod) to position itself along the width direction (X-axis) of the workpiece. Finally, the lifting cylinder 8 controls the lifting frame 9 and the glue applicator 10 to move vertically (Z-axis) so that the glue applicator 10 is aligned with the area of ​​the workpiece to be glued. During operation, the glue pump draws glue from the glue storage tank and delivers it to the glue applicator 10 through a high-pressure hose. The glue is then extruded along the planned path according to the preset program to complete precise glue application.

[0031] During this process, the clearance area between the tooling platform 21 and the support frame 5 ensures that there is no mechanical interference when it rotates or tilts. The high-precision positioning (≤0.5mm) of the three-way actuator, together with the workpiece posture adjustment, realizes the automated glue application operation on complex curved surfaces.

[0032] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A glue-applying robot for glass automobile production, characterized in that, The assembly includes a workbench (1), an inclined tooling table (2), a drive component (3), an auxiliary hydraulic cylinder (4), a support frame (5), a longitudinal actuator (6), a transverse actuator (7), a lifting cylinder (8), a lifting frame (9), and a glue applicator (10). The inclined tooling table (2) is rotatably mounted on the workbench (1). The output end of the drive component (3), which is fixedly mounted on the outside of the workbench (1), is fixed to the inclined tooling table (2). The auxiliary hydraulic cylinder (4) is hinged inside the workbench (1), and its output end is rotatably connected to the inclined tooling table (2). Two symmetrically arranged support frames (5) are fixedly mounted on the workbench (1). A longitudinal actuator (6) is fixedly mounted on each support frame (5). A transverse actuator (7) is installed between the two longitudinal actuators (6). The output end of the lifting cylinder (8), which is fixedly mounted on the transverse actuator (7), is fixedly connected to the lifting frame (9). The glue applicator (10) is mounted on the lifting frame (9).

2. The adhesive-applying robot for glass automobile production as described in claim 1, characterized in that: The inclined tooling table (2) includes a tooling platform (21), positioning rollers (22), connecting columns (23), suction cups (24), negative pressure pipes (25), negative pressure air pumps (26), and a rotating shaft (27). The rotating shaft (27) fixedly installed at one end of the tooling platform (21) is rotatably installed on the workbench (1), with one end rotating through the workbench (1) and fixed to the output end of the externally fixed drive component (3). The tooling platform (21) rotatably arranges the positioning rollers (22) and fixedly installs the connecting columns (23). Each connecting column (23) has a suction cup (24) installed at its upper end and its lower end connected to the negative pressure pipe (25). The negative pressure pipe (25) is equipped with a negative pressure air pump (26).

3. The adhesive-applying robot for glass automobile production as described in claim 2, characterized in that: The workbench (1) has a slot above it for installing the tooling platform (21), and inside it is a space for installing the auxiliary hydraulic cylinder (4), as well as a base for rotating the auxiliary hydraulic cylinder (4). The output end of the auxiliary hydraulic cylinder (4) is rotatably connected to a U-shaped piece fixedly installed below the other end of the tooling platform (21).

4. The adhesive-applying robot for glass automobile production as described in claim 3, characterized in that: The auxiliary hydraulic cylinder (4) and the drive component (3) are driven synchronously, which allows the tooling platform (21) to move along an arc-shaped trajectory along the center of the rotating shaft (27) at one end of itself.

5. The adhesive-applying robot for glass automobile production as described in claim 4, characterized in that: The tooling platform (21) is located between the two support frames (5) and there is a clearance area between the tooling platform (21).

6. The adhesive-applying robot for glass automobile production as described in claim 5, characterized in that: The longitudinal actuator (6) installed on the support frame (5) allows the transverse actuator (7) to perform longitudinal reciprocating motion. The transverse actuator (7) allows the lifting cylinder (8) to perform transverse reciprocating motion. The lifting cylinder (8) allows the lifting frame (9) to perform vertical reciprocating motion. The glue applicator (10) installed on the lifting cylinder (8) is connected to the glue storage tank through a pipeline in conjunction with the glue pump.

Citation Information

Patent Citations

  • Gluing robot for glass automobile production

    CN221319806U