Automobile roof cross beam gluing device

Abstract

The utility model discloses a kind of automobile roof crossbeam gumming devices, including machine table, three-dimensional moving mechanism is equipped on machine table, three-dimensional moving mechanism is connected with glue valve, base plate is also equipped on machine table, positioning support is equipped on base plate, glue valve is located above positioning support, using the automobile roof crossbeam gumming device of the utility model, it is convenient to position, guarantee gluing quality stability, and use cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology. Specifically, this utility model relates to an adhesive application device for automobile roof crossbeams. Background Technology

[0002] The main function of the car roof crossbeams is to support the roof, increase its rigidity, reduce vibrations during vehicle operation, and enhance its resistance to snow pressure in blizzards. The car roof must not only meet aesthetic design requirements but also satisfy certain strength and rigidity requirements to ensure that the outer surface of the roof has sufficient resistance to dents and does not easily deform under external pressure. In the event of a rollover or side impact, the roof has sufficient strength to protect the occupants, while the roof crossbeams disperse and transfer the impact force, preventing excessive deformation and intrusion of the vehicle body, thus protecting the occupant survival space as an important component of the passenger compartment.

[0003] In the body-in-white production process, there is no rigid connection between the roof and the roof beam. It is necessary to apply vibration damping adhesive to the gap between the roof and the roof beam using a sealant gun. However, in the current automatic adhesive application system, the positioning stability of the roof beam during the adhesive application process is poor, resulting in variations in the adhesive application area and thickness. This leads to unstable adhesive quality, causing product defects. Furthermore, it is not suitable for certain types of vehicles, such as those with sunroofs or non-sunroof assemblies, where the number of roof beams is inconsistent.

[0004] Utility model patent CN211937646U, published on January 17, 2020, discloses a system for applying adhesive to a car roof beam. This system includes an adhesive application platform with a three-dimensional moving mechanism. The mechanism houses a synchronously moving pneumatic glue gun and a height sensor. The signal output of the height sensor is electrically connected to the signal input of a microcontroller, and the control output of the microcontroller is electrically connected to the control input of the pneumatic glue gun. However, this adhesive application system also fails to solve the aforementioned technical problem. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an adhesive application device for automotive roof beams that is easy to position, ensures stable adhesive application quality, and has low operating costs.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The adhesive application device for the car roof beam includes a machine base, on which a three-dimensional moving mechanism is provided. The three-dimensional moving mechanism is connected to an adhesive application valve. The machine base is also provided with a base plate, on which a positioning bracket is provided. The adhesive application valve is located above the positioning bracket.

[0008] The positioning bracket includes a positioning block, a positioning pin is provided at the center of the top of the positioning block, and holes are provided on both sides of the positioning pin at the top of the positioning block.

[0009] The positioning bracket also includes a connecting plate, which is located on one side of the positioning block. A U-shaped groove is provided on one side of the top of the connecting plate, and a photoelectric sensor is provided on the U-shaped groove.

[0010] The positioning bracket is provided in multiple ways.

[0011] The positioning block has a square structure, the connecting plate has an L-shaped structure, the connecting plate has an oblong hole on its side, and the positioning bracket has a connecting hole on its side corresponding to the oblong hole.

[0012] The substrate has a through hole located below the photoelectric sensor.

[0013] The three-dimensional moving mechanism includes a longitudinal electric cylinder, a transverse electric cylinder, and a vertical guide rail. The transverse electric cylinder is mounted on the slider of the longitudinal electric cylinder, the vertical guide rail is mounted on the slider of the transverse electric cylinder, and the glue applicator is mounted on the slider of the vertical guide rail.

[0014] Two longitudinal electric cylinders are provided, and supports are provided at both ends of the bottom of the longitudinal electric cylinders. A base plate is fixedly connected to the bottom of the supports. A mounting frame is also provided on the machine base. The base plate is located between the two longitudinal electric cylinders. The mounting frame is located on the side of the machine base away from the base plate. A drive motor is provided on the mounting frame. The drive motor is connected to a reducer. Two connecting shafts are connected to both sides of the reducer. The two connecting shafts are respectively connected to the two longitudinal electric cylinders.

[0015] Both the lateral and longitudinal electric cylinder sides are equipped with cable chains.

[0016] The technical advantages of this invention are as follows: The automotive roof beam gluing device of this invention uses a positioning bracket to position the roof beam and a photoelectric sensor to detect the positioned roof beam, ensuring stable positioning of the roof beam during the gluing process. This guarantees the uniformity of the gluing and product quality. It is applicable to situations where the number of roof beams varies for some vehicle models. The positioning bracket combines positioning and detection functions, has a simple structure, and low operating costs. The rational layout of components on the machine improves production efficiency and ease of operation. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a schematic diagram of the adhesive application device for the automobile roof beam of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the components on the substrate of this utility model;

[0020] Figure 3 This is a schematic diagram of the positioning bracket structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning bracket structure of this utility model.

[0022] The components in the diagram are labeled as follows: 1. Machine base; 11. Mounting frame; 12. Support; 13. Base plate; 2. Three-dimensional moving mechanism; 21. Glue valve; 22. Longitudinal electric cylinder; 23. Lateral electric cylinder; 24. Vertical guide rail; 25. Drive motor; 26. Reducer; 27. Connecting shaft; 28. Cable chain; 3. Base plate; 31. Wire hole; 4. Positioning bracket; 41. Positioning block; 42. Positioning pin; 43. Hole; 44. Connecting plate; 45. U-shaped groove; 46. Photoelectric sensor; 47. Waist-shaped hole; 48. Connecting hole; 5. Top cover crossbeam parts. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0024] like Figure 1 As shown, the automotive roof beam adhesive application device includes a machine base 1, on which a three-dimensional moving mechanism 2 is mounted. The three-dimensional moving mechanism 2 is connected to an adhesive application valve 21. The machine base 1 also has a base plate 3, on which a positioning bracket 4 is mounted. The adhesive application valve 21 is located above the positioning bracket 4. The positioning bracket 4 supports and positions the roof beam, which helps to ensure the horizontal stability of the roof beam, thereby eliminating differences in adhesive application area and thickness, reducing product defects such as adhesive leakage, insufficient adhesive, or adhesive overflow, and improving adhesive application quality.

[0025] like Figures 1 to 4 As shown, the positioning bracket 4 includes a positioning block 41, with a positioning pin 42 at the top center of the positioning block 41. Holes 43 are located on both sides of the positioning pin 42 at the top of the positioning block 41. The positioning pin 42 can be inserted into the process hole of the top cover beam to achieve the positioning accuracy requirements of the top cover beam. After the top cover beam is placed, its bottom ends rest on the tops of the two positioning brackets 4, which helps to further ensure the horizontal orientation of the top cover beam, ensuring the uniformity of the adhesive application area and thickness, thereby guaranteeing the adhesive application quality and process requirements. Two holes 43 are provided on each side of the positioning pin 42, allowing for changes in the insertion position of the positioning pin 42 or the use of multiple positioning pins 42 to meet the stable positioning needs of different types of top cover beams. The top of the positioning pin 42 is chamfered to reduce the positioning resistance of the top cover beam.

[0026] like Figure 3 and Figure 4As shown, the positioning bracket 4 also includes a connecting plate 44, which is located on one side of the positioning block 41. A U-shaped groove 45 is provided on one side of the top of the connecting plate 44, and a photoelectric sensor 46 is mounted on the U-shaped groove 45. The photoelectric sensor 46 detects and identifies the top cover beam after positioning, sending a signal to an external PLC control device to initiate the glue application process. The mounting bracket slot of the photoelectric sensor 46 can be inserted along the U-shaped groove 45 and engaged with the connecting plate 44, ensuring the stability of the photoelectric sensor 46's posture. By mounting the photoelectric sensor 46 on the connecting plate 44, and the connecting plate 44 on the positioning bracket 4, the functions of positioning and detection of the top cover beam are integrated. The positioning bracket 4 has a simple overall structure, is easy to install and manufacture, and has low operating costs. Furthermore, the photoelectric sensor 46 can be replaced with a suitable sensor type for identification purposes, or it can be used in conjunction with a PLC control device to automatically identify the differences in feature points of top cover beams with different configurations, feeding the signal back to the PLC to command the combined actions of various mechanisms to drive the glue application valve 21 to achieve precise positioning.

[0027] like Figure 2 As shown, multiple positioning brackets 4 are provided. Multiple positioning brackets 4 can be set on the base plate 3 to meet the simultaneous placement of roof beams of different sizes on the same vehicle model. This is suitable for situations where the number of roof beams is inconsistent in a type of vehicle with sunroof / non-sunroof assemblies, thereby improving work efficiency.

[0028] like Figure 3 and Figure 4 As shown, the positioning block 41 has a square structure, and the connecting plate 44 has an L-shaped structure. The connecting plate 44 has a waist-shaped hole 47 on its side, and the positioning bracket 4 has a corresponding connecting hole 48 on its side. The positioning bracket 4 has a simple structure and can be directly welded or magnetically fixed to the substrate 3, resulting in low operating costs. After the waist-shaped hole 47 on one side of the L-shaped connecting plate 44 is bolted to the connecting hole 48 of the positioning bracket 4, its top surface is horizontal, which helps ensure the stable installation of the photoelectric sensor 46. The position of the photoelectric sensor 46 can be easily adjusted laterally on the positioning bracket 4 simply by loosening the bolts. Two connecting holes 48 are provided to ensure the stable connection of the connecting plate 44.

[0029] like Figure 2 As shown, a wire-through hole 31 is provided on the substrate 3 below the photoelectric sensor 46. The wire-through hole 31 prevents the wire harness from being arranged on the machine base 1 and prevents the wire harness from being stuck by dripping or overflowing adhesive. At the same time, the space below the machine base 1 is the space for arranging electrical equipment, and the wire harness of the photoelectric sensor 46 passes through the wire-through hole 31 to facilitate electrical connection.

[0030] like Figure 1As shown, the three-dimensional moving mechanism 2 includes a longitudinal electric cylinder 22, a transverse electric cylinder 23, and a vertical guide rail 24. The transverse electric cylinder 23 is mounted on the slider of the longitudinal electric cylinder 22, and the vertical guide rail 24 is mounted on the slider of the transverse electric cylinder 23. The glue-applying valve 21 is mounted on the slider of the vertical guide rail 24. The operation of the three-dimensional moving mechanism 2 realizes the three-dimensional movement of the glue-applying valve 21. The Z-axis movement of the glue-applying valve 21 on the vertical guide rail 24 is powered by a cylinder, and the movement of the slider of the transverse electric cylinder 23 is powered by a motor fixed at its end. The three-dimensional moving mechanism 2 includes an electric cylinder drive system in the X and Y directions and a cylinder drive system in the Z direction. It controls the glue-applying movement and the operation of the glue supply system through an external CNC system, ensuring that the glue-applying valve 21 can move in multiple directions, thereby realizing complex glue-applying paths. Compared with existing manual operation, it can eliminate the cost waste caused by manual glue-applying accuracy leading to rework of the body-in-white and the impact on the production line cycle time.

[0031] like Figure 1 As shown, there are two longitudinal electric cylinders 22. Supports 12 are located at both ends of the bottom of each longitudinal electric cylinder 22, and a base plate 13 is fixedly connected to the bottom of each support 12. A mounting frame 11 is also provided on the machine base 1. The base plate 3 is located between the two longitudinal electric cylinders 22, and the mounting frame 11 is located on the side of the machine base 1 away from the base plate 3. A drive motor 25 is provided on the mounting frame 11, and a reducer 26 is connected to the drive motor 25. Two connecting shafts 27 are connected to both sides of the reducer 26, and the two connecting shafts 27 are respectively connected to the two longitudinal electric cylinders 22. The connecting shafts 27 transmit power to the slider through couplings at their ends and gear sets and screws at the inner ends of the electric cylinders. The above structure keeps the moving parts on the machine base 1 away from the loading and unloading positions of the top cover beam, and also away from the operator's working position, ensuring the safety of equipment operation; the power output of the drive motor 25 is transmitted to the two longitudinal electric cylinders 22 through the reducer 26 and the two connecting shafts 27 respectively, ensuring the synchronous operation of the sliders of the two longitudinal electric cylinders 22, thereby making the transverse electric cylinder 23 run stably; the installation height of the mounting frame 11 and the three-dimensional moving mechanism 2 and its driving components facilitates the maintenance and cleaning of the machine base 1.

[0032] like Figure 1 As shown, both the side of the transverse electric cylinder 23 and the side of the longitudinal electric cylinder 22 are equipped with cable carriers 28. The cable carriers 28 serve to pull and protect the cables of the electric cylinders.

[0033] The working steps are as follows: The operator places the top cover crossbeam, such as the front crossbeam assembly and the rear crossbeam assembly, on the positioning bracket 4; the operator presses the part placement completion button and the vehicle selection button; after the PLC identifies the part through the photoelectric sensor 46, it sends a signal to the electric cylinder for three-dimensional movement; after the glue application assembly moves to the position set by the PLC, the PLC sends a signal, and the glue application assembly receives the signal to dispense glue and apply glue according to the set trajectory.

[0034] This automotive roof beam gluing device uses a positioning bracket 4 to position the roof beam and a photoelectric sensor 46 to detect the positioned roof beam, ensuring stable positioning of the roof beam during the gluing process. This guarantees the uniformity of the gluing and product quality, and is suitable for situations where the number of roof beams varies for some car models. The positioning bracket 4 combines positioning and detection functions, has a simple structure, and low operating cost. The components on the machine base 1 are rationally arranged, improving production efficiency and ease of operation.

[0035] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for applying adhesive to the crossbeam of an automobile roof, comprising a machine base (1), wherein a three-dimensional moving mechanism (2) is provided on the machine base (1), and the three-dimensional moving mechanism (2) is connected to an adhesive valve (21), characterized in that: The machine base (1) is also provided with a base plate (3), and a positioning bracket (4) is provided on the base plate (3). The glue valve (21) is located above the positioning bracket (4).

2. The adhesive applicator for the crossbeam of an automobile roof according to claim 1, characterized in that: The positioning bracket (4) includes a positioning block (41), a positioning pin (42) is provided at the center of the top of the positioning block (41), and holes (43) are provided on both sides of the positioning pin (42) at the top of the positioning block (41).

3. The adhesive applicator for the automobile roof crossbeam according to claim 2, characterized in that: The positioning bracket (4) also includes a connecting plate (44), which is located on one side of the positioning block (41). A U-shaped groove (45) is provided on one side of the top of the connecting plate (44), and a photoelectric sensor (46) is provided on the U-shaped groove (45).

4. The adhesive applicator for the automobile roof crossbeam according to claim 3, characterized in that: The positioning bracket (4) is provided in multiple ways.

5. The adhesive applicator for the crossbeam of an automobile roof according to claim 4, characterized in that: The positioning block (41) has a square structure, the connecting plate (44) has an L-shaped structure, the side of the connecting plate (44) is provided with an oblong hole (47), and the side of the positioning bracket (4) is provided with a connecting hole (48) corresponding to the oblong hole (47).

6. The adhesive applicator for the crossbeam of an automobile roof according to claim 3, characterized in that: The substrate (3) has a through hole (31) located below the photoelectric sensor (46).

7. The adhesive applicator for a car roof beam according to any one of claims 1-6, characterized in that: The three-dimensional moving mechanism (2) includes a longitudinal electric cylinder (22), a transverse electric cylinder (23), and a vertical guide rail (24). The transverse electric cylinder (23) is located on the slider of the longitudinal electric cylinder (22), the vertical guide rail (24) is located on the slider of the transverse electric cylinder (23), and the glue-applying valve (21) is located on the slider of the vertical guide rail (24).

8. The adhesive applicator for the crossbeam of an automobile roof according to claim 7, characterized in that: Two longitudinal electric cylinders (22) are provided. Supports (12) are provided at both ends of the bottom of the longitudinal electric cylinders (22). A base plate (13) is fixedly connected to the bottom of the support (12). A mounting frame (11) is also provided on the machine base (1). The base plate (3) is located between the two longitudinal electric cylinders (22). The mounting frame (11) is located on the side of the machine base (1) away from the base plate (3). A drive motor (25) is provided on the mounting frame (11). A reducer (26) is connected to the drive motor (25). Two connecting shafts (27) are connected to both sides of the reducer (26). The two connecting shafts (27) are connected to the two longitudinal electric cylinders (22) respectively.

9. The adhesive applicator for the crossbeam of an automobile roof according to claim 8, characterized in that: Both the side of the transverse electric cylinder (23) and the side of the longitudinal electric cylinder (22) are equipped with drag chains (28).

Images