Instrument panel 3D mesh cutting device and mesh covering cutting method

By designing support components, hot pressing components, membrane pulling components and laser cutting components on the dashboard, the automatic bonding and cutting of 3D mesh cloth is achieved, and the problem of automatic coating of dashboards in the prior art is solved. Improves production efficiency and cutting quality.

CN118493883BActive Publication Date: 2024-12-13江苏烽禾升智能科技有限公司
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Patent Information

Application Number
CN202410961813.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2024-12-13
Estimated Expiration
2044-07-18

AI Technical Summary

Technical Problem

In the prior art, the automated coating process of 3D meshing on the surface of the dashboard is difficult to achieve, due to the curved surface and asymmetric structure of the dashboard, resulting in low production efficiency and high cost.

Method used

A 3D mesh cutting device for dashboard including support components, hot pressing components, membrane pulling components and laser cutting components is designed. Through vacuum adsorption, hot pressing, membrane pulling and visual positioning technologies, the mesh is automatically pasted. Combined and precise cutting to ensure smooth and cutting quality of the dashboard surface.

Benefits of technology

It improves the efficiency of cutting and applying 3D mesh, realizes automated and intelligent production, improves production efficiency, reduces production costs, and ensures cutting quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a 3D mesh cutting device for an instrument panel and a mesh coating cutting method, including a support assembly with a lower mold placed thereon and a hot pressing assembly arranged above the support assembly; the support assembly fixes the position of the instrument panel through a vacuum adsorption unit, and the mesh to be coated is attached to the upper mold of the hot pressing assembly, and the pressing drive member drives the upper mold to move downward and mate with the lower mold, so that the mesh is attached to the surface of the instrument panel. Then, the laser head is guided to perform cutting through an accurately positioned visual positioning unit, which can effectively prevent damage to the bottom of the instrument panel. Compared with the prior art solution of cutting first and then coating, the present invention can effectively improve the efficiency of cutting and coating, and realize the automation and intelligence of 3D mesh cutting. The positioning accuracy of the present invention is high, and the laser cutting is performed by a robot guided by vision, the cutting surface is flat, the cutting speed is fast, and the structure is simple. It can effectively improve production efficiency and reduce production costs, and automated production ensures cutting quality.
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Description

Technical Field

[0001] The invention relates to an automobile instrument panel processing device, in particular to an instrument panel 3D mesh cloth cutting device and a mesh cloth coating cutting method. Background Art

[0002] In the automotive industry, it is necessary to coat the surface of the instrument panel with a layer of 3D mesh. The prior art 3D mesh coating process includes the following steps: firstly, the 3D mesh is rolled on the surface of the rolling machine, and then the 3D mesh is formed by punching and cutting through the machine tool, and then the formed 3D mesh is applied to the surface of the instrument panel by manually heating it with a hot air gun. Since the surface of the instrument panel is an overall curved surface and has multiple asymmetric structures, it is difficult to automate production.

[0003] Therefore, it is necessary to improve the coating process and coating equipment in the prior art. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a 3D mesh cutting device for a dashboard, comprising a support assembly, wherein the support assembly comprises a base and a lower mold arranged on the base, wherein the upper surface of the lower mold is arranged in the shape of the bottom surface of the dashboard; and a vacuum adsorption unit for fixing the dashboard is arranged on the surface of the lower mold;

[0005] A hot pressing assembly is arranged above the supporting assembly through a bracket, and the hot pressing assembly includes an upper mold arranged to imitate the shape of the top surface of the instrument panel, a lifting plate supporting the upper mold, and a pressing driving member, wherein a heating component is arranged in the upper mold, and the pressing driving member drives the lifting plate and the upper mold arranged on the lifting plate to move downward, so that the upper mold and the lower mold are molded together;

[0006] The film-pulling assembly is arranged between the upper die and the lower die, and includes at least one pair of film-pulling grippers for gripping the mesh cloth, wherein the film-pulling grippers are movably connected to the lifting plate through a gripper driving unit, and the gripper driving unit includes a lifting driving member arranged along the vertical direction at the output end and a film-pulling driving member arranged along the gripping direction of the film-pulling grippers at the output end, wherein the film-pulling driving member drives the film-pulling grippers to move relatively to flatten the mesh cloth from the side; the lifting driving member is used to drive the film-pulling grippers to move vertically relative to the lower die to fit the flattened diaphragm to the contoured surface of the upper die;

[0007] The laser cutting assembly is located on the side of the supporting assembly and includes a visual positioning unit and a laser head connected to the control center; the visual positioning unit transmits the position signal of the mesh to the control center, and the control center compares it with the information recording the preset cutting trajectory and outputs a cutting signal to the laser head.

[0008] Furthermore, the vacuum adsorption unit includes a plurality of suction cups arranged on the surface of the lower mold, and the suction cups are connected to the vacuum generator through an air pipe.

[0009] Furthermore, the lower mold is arranged with a plurality of positioning blocks protruding from the surface of the lower mold to cooperate with fixing the position of the instrument panel on the lower mold.

[0010] Furthermore, the film-pulling driving member and the lifting driving member are both cylinders, the fixed end of the film-pulling driving member is connected to the lifting plate, and the fixed end of the lifting driving member is connected to the output end of the film-pulling driving member.

[0011] Furthermore, the heating component of the hot pressing assembly is a heating plate arranged on the top of the upper mold, the heating plate covers the top end surface of the upper mold, and an insulation plate is arranged between the heating plate and the lifting plate.

[0012] Furthermore, the laser cutting assembly includes a laser generator connected in sequence, a light guide unit guiding the laser path, and a laser head connected to the tail end of the light guide unit; the laser head is connected to the output end of a cutting moving unit through a fixing plate to control the movement of the cutting track.

[0013] Furthermore, the visual positioning unit is arranged on a fixed plate and moves synchronously with the laser head.

[0014] Furthermore, the visual positioning unit is composed of an oblique camera and a straight camera, the monitoring angle of the straight camera is perpendicular to the horizontal surface of the base; the monitoring angle of the oblique camera is inclined to the monitoring angle of the straight camera.

[0015] Furthermore, a suspension assembly is provided to provide support for the laser cutting assembly, the suspension assembly includes a cantilever, a sliding guide rail is fixedly provided on the cantilever and a spring balancer is provided on the sliding guide rail, the spring balancer is movably connected to the sliding guide rail by fixing the sheet metal;

[0016] The hook arranged on the spring balancer is buckled and connected with the clamping rope arranged on the light guide unit.

[0017] The present invention further provides a method for cutting mesh cloth using the above-mentioned device, comprising the following steps:

[0018] S1. Orient the instrument panel to be coated with mesh cloth in the lower mold, start the vacuum adsorption unit, and adsorb the instrument panel on the surface of the lower mold;

[0019] S2, the film-pulling clamp holds the mesh to be coated so that the adhesive-coated surface of the mesh faces the lower mold; stretches the mesh and controls the mesh to move toward the upper mold until the mesh covers the contoured surface of the upper mold;

[0020] S3, the pressing driving component controls the upper mold to move downward and press the lower mold together, the glue-coated surface of the mesh cloth is attached to the contoured surface of the lower mold, and the heating unit heats and laminates the glue-coated surface of the mesh cloth;

[0021] S4, the upper mold and the film clamp are separated from the lower mold surface, the visual positioning unit locates the cutting track of the instrument panel through visual scanning, and the laser head automatically cuts along the cutting track; after cutting, the workpiece transfer mechanism grabs the instrument panel on the stage and moves it to the next process.

[0022] The present invention provides a 3D mesh cutting device for a dashboard, comprising a support assembly with a lower mold placed thereon, and a hot pressing assembly arranged above the support assembly; the support assembly fixes the position of the dashboard through a vacuum adsorption unit, attaches the mesh to be coated to the upper mold of the hot pressing assembly, and the pressing drive member drives the upper mold to move downward to mate with the lower mold, so that the mesh fits the surface of the dashboard. Then, the laser head is guided to perform cutting through an accurately positioned visual positioning unit, which can effectively prevent damage to the dashboard base.

[0023] In the embodiment, the laser cutting assembly is connected to the suspension assembly, the laser head is driven by a six-axis robot to move six axes, and the spring balancer on the cantilever can automatically pull the light guide arm, so that the light guide arm can automatically make compensatory movements without affecting the laser transmission optical path, and has high operating stability.

[0024] Compared with the prior art solution of cutting first and then pasting, the present invention can effectively improve the efficiency of cutting and pasting, and realize the automation and intelligence of 3D mesh cutting. The present invention has high positioning accuracy, and uses vision to guide the robot to perform laser cutting. The cutting surface is flat, the cutting speed is fast, and the mechanism is simple. It can effectively improve production efficiency and reduce production costs, and automated production ensures cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a dashboard 3D mesh cloth cutting device of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of the support assembly;

[0027] Figure 3 It is a schematic diagram of the structure of the hot pressing component and the film drawing component;

[0028] Figure 4 is a schematic diagram of the structure of the hot pressing assembly;

[0029] Figure 5 It is a structural schematic diagram of the film pulling assembly;

[0030] Figure 6 It is a schematic diagram of the connection between the laser cutting component and the suspension component;

[0031] Figure 7 yes Figure 6 The structural diagram at A in the middle;

[0032] Figure 8 yes Figure 6 Schematic diagram of the structure at B in the middle;

[0033] Fig. 9 It is a structural diagram of the visual positioning unit.

[0034] Reference numerals: support assembly 1, base 11, lower mold 12, stage 13, suction cup 14, vacuum generator 15, positioning block 16;

[0035] Hot pressing assembly 2, upper mold 21, lifting plate 22, pressing drive member 23, upper support plate 24, heating plate 25, heat insulation plate 26, linear moving mold group 27;

[0036] Film pulling assembly 3, film pulling gripper 31, end panel 311, fixed block 312, movable block 313, clamping cylinder 314, flip cylinder 32, lifting drive 33, film pulling drive 34;

[0037] Laser cutting assembly 4, laser generator 41, light guide unit 42, first light guide arm 421, second light guide arm 422, laser head 43, fixing plate 44, cutting moving unit 45, visual positioning unit 46, oblique camera 461, straight camera 462;

[0038] Suspension assembly 5, sliding guide rail 51, column 52, cantilever 53, spring balancer 54, fixed sheet metal 55, hook 56, and clamping rope 57. DETAILED DESCRIPTION

[0039] like Figure 1 and Figure 2 The instrument panel 3D mesh cutting equipment shown includes a support component 1 for supporting the instrument panel, the support component 1 includes a base 11 and a lower mold 12 arranged on the base 11, the upper surface of the lower mold 12 is arranged to imitate the bottom surface shape of the instrument panel and is connected to the base 11 through a stage 13. The instrument panel is placed on the lower mold 12 according to the shape of the imitating surface through the workpiece loading component, so as to locate the bottom position of the instrument panel, prevent the instrument panel from moving during the cutting process and avoid damage to the bottom shell of the instrument panel.

[0040] The function of the workpiece loading assembly is to clamp the instrument panel to be wrapped with mesh from the previous production process and place it on the lower mold 12 in a directional manner, or to transfer the instrument panel wrapped with mesh to the next process in a directional manner. The workpiece loading assembly is a common device for transferring instrument panels such as a six-axis robot, so the position and structure of the workpiece loading assembly are not shown in the figure.

[0041] The bottom of the lower mold 12 is provided with a vacuum adsorption unit for fixing the position of the instrument panel, and the vacuum adsorption unit includes a vacuum generator 15 provided on the side of the stage 13, and the vacuum generator 15 is connected to a plurality of suction cups 14 arranged on the surface of the lower mold 12 through an air pipe, forming a vacuum adsorption surface between the lower mold 12 and the instrument panel, and the inner cavity of the instrument panel is closely fitted with the adsorption surface of the lower mold 12 by vacuum adsorption, so that the instrument panel is fixed on the lower mold 12. The suction cups 14 are dispersedly arranged along the surface of the lower mold 12, and adsorption is performed from various positions of the instrument panel to keep the stability of the instrument panel on the lower mold 12 to the greatest extent.

[0042] The lower die 12 is also provided with a plurality of positioning blocks 16 protruding from the surface of the lower die 12 to cooperate with fixing the position of the instrument panel on the lower die 12. One part of the positioning blocks 16 is located on the side of the lower die 12, and is in contact with the side of the instrument panel, exerting a pressing force on the side of the instrument panel to roughly position the instrument panel; the other part is arranged in the middle of the lower die 12, and cooperates with the positioning holes provided on the instrument panel to precisely position the instrument panel. The two parts of the positioning blocks 16 cooperate together to realize the pressing and positioning of the instrument panel on the lower die 12, and avoid the position of the instrument panel changing during the cutting process and the bonding process of the 3D mesh.

[0043] like Figure 3 and Figure 4 As shown, the hot pressing assembly 2 is arranged above the supporting assembly 1 through a bracket. The function of the bracket is to fix the position of the supporting assembly 1, and the position of the bracket is not shown in the figure. The hot pressing assembly 2 includes an upper mold 21 that emulates the top surface of the instrument panel, a lifting plate 22 that supports the upper mold 21, and a pressing drive 23. The pressing drive 23 drives the lifting plate 22 and the upper mold 21 arranged on the lifting plate 22 to move downward so that the upper mold 21 and the lower mold 12 are molded together.

[0044] In this embodiment, the clamping drive member 23 is a vertically arranged clamping cylinder, the clamping cylinder is fixedly connected to the bracket through an upper support plate 24, and the lifting plate 22 is connected to the output shaft of the clamping cylinder.

[0045] like Figure 4 and Figure 5 As shown. The film drawing assembly 3 is arranged between the upper mold 21 and the lower mold 12, and is used to locate the position of the mesh when the upper mold 21 and the lower mold 12 are closed. The film drawing assembly 3 includes at least one pair of film drawing clamps 31 arranged on both sides of the mesh, clamping the side of the mesh and being movably connected to the lifting plate 22 through a clamp driving unit, and the clamp driving unit includes a lifting driving member 33 arranged along the vertical direction at the output end and a film drawing driving member 34 arranged along the clamping direction of the film drawing clamp 31 at the output end.

[0046] Among them, the film-pulling driving component 34 is used to drive the film-pulling clamps 31 on both sides to move relative to each other, flatten the mesh cloth located between the pair of film-pulling clamps 31, and the mesh cloth is stretched to exceed the size of the upper mold 21 or the lower mold 12; the lifting driving component 33 is used to drive the film-pulling clamps 31 to move vertically relative to the lower mold 12, so as to fit the flattened diaphragm to the contoured surface of the upper mold 21.

[0047] In this embodiment, the film-pulling driving member 34 and the lifting driving member 33 are both cylinders. The fixed end of the film-pulling driving member 34 is connected to the lifting plate 22, and the fixed end of the lifting driving member 33 is connected to the output end of the film-pulling driving member 34. The film-pulling clamp 31 is driven to move horizontally and vertically relative to the lower mold 12 through the stroke of the cylinder.

[0048] In this embodiment, the heating part of the hot pressing assembly 2 is a heating plate 25 disposed on the top of the upper mold 21, covering the top end surface of the upper mold 21, and providing hot pressing energy to the upper mold 21 and the mesh. A heat insulation plate 26 is disposed between the heating plate 25 and the lifting plate 22 to prevent the heat generated by the heating plate 25 from diffusing to the lifting plate 22.

[0049] like Figure 5 As shown, the film pulling clamp 31 includes an end panel 311, a fixed block 312 and a movable block 313 connected to the end panel 311, the side of the mesh is located between the fixed block 312 and the movable block 313, and the movable block 313 is connected to the output end of a clamping cylinder 314 and moves relative to the fixed block 312 to form a clamp for the mesh.

[0050] The mesh of the present invention has been pre-cut into a roughly square shape in the previous process. The film-pulling grippers 31 clamp the two sides of the mesh, and an external glue spraying mechanism is used to spray glue on the surface of the mesh to form a glue-coated surface that fits the instrument panel, and then it is transferred from the previous process to the top of the support assembly 1 through the linear moving module 27. In order to facilitate the adjustment of the glue-coated surface, the output end of the gripper drive unit is connected to a flip cylinder 32, and the end panel 311 is connected to the flip cylinder 32. The orientation of the mesh is adjusted by rotating the flip cylinder 32 so that the glue-coated surface can face the glue spraying mechanism or rotate correctly to face the glue-coated surface of the instrument panel.

[0051] The laser cutting assembly 4, located on the side of the supporting assembly 1, is used to cut the instrument panel wrapped with mesh cloth, and includes a visual positioning unit 46 for identifying the cutting track on the surface of the mesh cloth and a laser head 43 for cutting the mesh cloth along the cutting track.

[0052] like Figure 6As shown, the laser cutting assembly 4 includes a laser generator 41 connected in sequence, a light guide unit 42 for guiding the laser path, and a laser head 43 connected to the tail end of the light guide unit 42. The laser is generated by the laser generator 41, and is emitted by the laser head 43 after being transmitted by the light guide unit 42. The laser head 43 is connected to the output end of a cutting moving unit 45 through a fixing plate 44, so that the laser head 43 can move in the space above the support assembly 1 and the output direction of the laser head 43 continuously points to the position to be cut.

[0053] In this embodiment, the cutting moving unit 45 is a six-axis robot, and the flexible movement capability of the six-axis robot is used to realize the movement of the cutting track of the laser head 43.

[0054] like Figure 6 and Figure 7 As shown, a suspension assembly 5 is also provided to provide support for the laser cutting assembly 4. The suspension assembly 5 is in an inverted L shape and consists of a column 52 and a cantilever 53. The bottom of the column 52 is fixedly connected to the ground, and a side plate supporting the laser generator 41 is fixedly provided in the middle of the column 52. A sliding guide rail 51 is fixedly provided on the cantilever 53, and a spring balancer 54 is provided on the sliding guide rail 51. The spring balancer 54 is movably connected to the sliding guide rail 51 through a fixed sheet metal 55. The hook 56 provided on the spring balancer 54 is buckled and connected with the clamping rope 57 provided on the light guide unit 42. When the laser head 43 performs cutting work with the six-axis robot, the spring balancer 54 can provide elastic support for the light guide unit 42 and carry the light guide unit 42 along the sliding guide rail 51 for movement compensation.

[0055] Specifically, the light guide unit 42 is composed of a first light guide arm 421 and a second light guide arm 422 which are movably connected to each other. The other ends of the first light guide arm 421 and the second light guide arm 422 are movably connected to the ends of the laser generator 41 and the laser head 43 respectively.

[0056] Furthermore, the visual positioning unit 46 and the laser head 43 are connected together on the fixed plate 44. As the laser head 43 moves synchronously, the position signal of the instrument panel surface is collected and transmitted back to the control center for comparison with the preset cutting trajectory, and a movement signal along the preset cutting trajectory is generated; the control center transmits the movement signal back to the laser head 43, and controls the laser head 43 to cut along the preset cutting trajectory.

[0057] like Figure 8 and Fig. 9As shown, in this embodiment, the visual positioning unit 46 is composed of two groups of oblique cameras 461 and straight cameras 462 arranged in parallel. The straight camera 462 can locate the horizontal position of the 3D mesh from the vertical height; the positioning surface of the oblique camera 461 is at a certain angle to the vertical plane, and the straight camera 462 cooperates to identify the vertical height of the laser head 43, thereby accurately locating the position to be cut on the 3D mesh.

[0058] The process of mesh covering and cutting using this embodiment is as follows:

[0059] S1, the workpiece transfer mechanism controls the instrument panel to be oriented and placed in the lower mold 12, the vacuum adsorption unit is started, and the instrument panel is adsorbed on the surface of the lower mold 12;

[0060] S2, the film-pulling clamp 31 clamps the mesh to be coated so that the adhesive-coated surface of the mesh faces the lower mold 12; stretches the mesh and controls the mesh to move toward the upper mold 21 until the mesh covers the contoured surface of the upper mold 21;

[0061] S3, the pressing driving member 23 controls the upper mold 21 to move downward and press the lower mold 12 to close the mold, the glue-coated surface of the mesh cloth is attached to the contoured surface of the lower mold 12, and the heating unit heats and laminates the glue-coated surface of the mesh cloth;

[0062] S4, the upper mold 21 and the film pulling clamp 31 are separated from the surface of the lower mold 12, and the visual positioning unit 46 locates the cutting trajectory of the instrument panel through visual scanning, and the laser head 43 automatically cuts along the cutting trajectory; after cutting, the workpiece moving mechanism grabs the instrument panel on the stage 13 and moves it to the next process.

[0063] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A 3D mesh cutting device for an instrument panel, characterized by: The invention comprises a support assembly (1), wherein the support assembly (1) comprises a base (11) and a lower mold (12) arranged on the base (11), wherein the upper surface of the lower mold (12) is arranged in the shape of the bottom surface of the instrument panel; and a vacuum adsorption unit for fixing the instrument panel is arranged on the surface of the lower mold (12); A hot pressing assembly (2) is arranged above the supporting assembly (1) via a bracket, the hot pressing assembly (2) comprising an upper mold (21) arranged to imitate the shape of the top surface of the instrument panel, a lifting plate (22) supporting the upper mold (21), and a pressing drive member (23), wherein a heating component is arranged in the upper mold (21), and the pressing drive member (23) drives the lifting plate (22) and the upper mold (21) arranged on the lifting plate (22) to move downward, so that the upper mold (21) and the lower mold (12) are matched with each other; A film-pulling assembly (3) is arranged between an upper die (21) and a lower die (12), and comprises at least one pair of film-pulling grippers (31) for gripping a mesh cloth, wherein the film-pulling grippers (31) are movably connected to a lifting plate (22) via a gripper driving unit, wherein the gripper driving unit comprises a lifting driving member (33) arranged at an output end along a vertical direction, and a film-pulling driving member (34) arranged at an output end along a gripping direction of the film-pulling grippers (31), wherein the film-pulling driving member (34) drives the film-pulling grippers (31) to move relative to each other, so as to flatten the mesh cloth from the side; and the lifting driving member (33) is used to drive the film-pulling grippers (31) to move vertically relative to the lower die (12), so as to fit the flattened diaphragm to the contoured surface of the upper die (21); The laser cutting assembly (4) is located on the side of the support assembly (1), and comprises a visual positioning unit (46) and a laser head (43) connected to a control center; the visual positioning unit (46) transmits a position signal of the mesh to the control center, and the control center compares the position signal with information recording a preset cutting trajectory, and outputs a cutting signal to the laser head (43); A suspension assembly (5) is also provided to provide support for the laser cutting assembly (4), the suspension assembly (5) comprising a cantilever (53), a sliding guide rail (51) being fixedly provided on the cantilever (53), and a spring balancer (54) being provided on the sliding guide rail (51), the spring balancer (54) being movably connected to the sliding guide rail (51) via a fixed sheet metal (55); a hook (56) provided on the spring balancer (54) is buckled and connected to a clamping rope (57) provided on the laser cutting assembly (4).

2. The instrument panel 3D mesh cutting device according to claim 1, characterized in that: The vacuum adsorption unit comprises a plurality of suction cups (14) arranged on the surface of the lower mold (12), and the suction cups (14) are connected to the vacuum generator (15) via an air pipe.

3. The instrument panel 3D mesh cutting device according to claim 1, characterized in that: The lower mold (12) is provided with a plurality of positioning blocks (16) protruding from the surface of the lower mold (12) to cooperate with and fix the position of the instrument panel on the lower mold (12).

4. The instrument panel 3D mesh cutting device according to claim 1, characterized in that: The film-pulling driving member (34) and the lifting driving member (33) are both cylinders; the fixed end of the film-pulling driving member (34) is connected to the lifting plate (22); and the fixed end of the lifting driving member (33) is connected to the output end of the film-pulling driving member (34).

5. The instrument panel 3D mesh cutting device according to claim 1, characterized in that: The heating component of the hot pressing assembly (2) is a heating plate (25) arranged on the top of the upper mold (21), the heating plate (25) covers the top end surface of the upper mold (21), and a heat insulation plate (26) is arranged between the heating plate (25) and the lifting plate (22).

6. The instrument panel 3D mesh cutting device according to claim 1, characterized in that: The laser cutting assembly (4) comprises a laser generator (41) connected in sequence, a light guide unit (42) for guiding a laser path, and a laser head (43) connected to the rear end of the light guide unit (42); the laser head (43) is connected to the output end of a cutting moving unit (45) via a fixing plate (44) to control the movement of the cutting track.

7. The instrument panel 3D mesh cutting device according to claim 6, characterized in that: The visual positioning unit (46) is arranged on the fixed plate (44) and moves synchronously with the laser head (43).

8. The instrument panel 3D mesh cutting device according to claim 7, characterized in that: The visual positioning unit (46) is composed of an oblique camera (461) and a straight camera (462); the monitoring angle of the straight camera (462) is perpendicular to the horizontal surface of the base (11); and the monitoring angle of the oblique camera (461) is inclined to the monitoring angle of the straight camera (462).

9. A mesh covering and cutting method, characterized in that: The process of using a dashboard 3D mesh cutting device as described in any one of claims 1 to 8 comprises the following steps: S1, orienting the instrument panel to be coated with the mesh cloth in the lower mold (12), starting the vacuum adsorption unit, and adsorbing the instrument panel onto the surface of the lower mold (12); S2, the film-pulling clamp (31) clamps the mesh to be coated so that the adhesive-coated surface of the mesh faces the lower mold (12); stretches the mesh and controls the mesh to move in the direction of the upper mold (21) until the mesh covers the contoured surface of the upper mold (21); S3, the pressing drive member (23) controls the upper mold (21) to move downward and press the lower mold (12) to close the mold, so that the glue-coated surface of the mesh cloth is attached to the contoured surface of the lower mold (12), and the heating unit heats and laminates the glue-coated surface of the mesh cloth; S4, the upper mold (21) and the film pulling clamp (31) are separated from the surface of the lower mold (12), the visual positioning unit (46) locates the cutting track of the instrument panel through visual scanning, and the laser head (43) automatically cuts along the cutting track; after the cutting is completed, the workpiece transfer mechanism grabs the instrument panel on the stage (13) and moves it to the next process.