Automatic chamfering device for sheet metal

Abstract

The utility model discloses a metal plate automatic chamfering device relates to plate automatic chamfering technical field, include: workstation, vacuum adsorption device, Y axis drive subassembly, support frame, X axis drive subassembly, visual detection device, Z axis drive subassembly, rotary drive subassembly and chamfering subassembly, the utility model discloses a double fixed mechanism of honeycomb mesa multi -region independent vacuum adsorption and magnetic sheet magnetic force enhancement, realize the all -round stable adsorption of plate especially thin plate, prevent displacement or warping deformation in the processing, again through the accurate control of elevator tool vertical feed, combine the harmonic reducer of rotary drive subassembly, support tool 350 degree multi -angle adjustment, realize the accurate operation of complex profile, finally, the visual detection device integrates industrial camera and annular light source real -time identification plate profile and dynamic generation processing path, support the automatic processing of complex chamfer such as arc, bevel.

Description

Technical Field

[0001] This utility model relates to the field of automatic chamfering technology for sheet metal, specifically an automatic chamfering device for metal sheets. Background Technology

[0002] Chamfering of metal sheets is a key process in the machinery manufacturing industry, widely used in automotive sheet metal, aerospace components, precision instruments, and other industrial applications. Traditional chamfering equipment typically uses mechanical clamps to hold the sheet metal, which is then cut using a multi-axis CNC machine tool. In recent years, to improve efficiency and precision, the industry has gradually introduced technologies such as vacuum adsorption fixing, servo drive systems, and automated tool changers. However, existing equipment still has significant shortcomings in handling complex contour machining, controlling the stability of thin sheets, and efficient cooling management. For example, traditional vacuum adsorption tables use a single adsorption area, which cannot dynamically adjust the adsorption range according to the sheet size. This results in wasted adsorption area when fixing small sheets, insufficient adsorption force at the edges of large sheets, and warping or displacement during thin sheet machining. Furthermore, traditional tool changers rely on mechanical chucks, resulting in tool change times of over 10 seconds. Additionally, the open spray cooling system leads to significant lubricant waste and high tool wear. Therefore, a new type of automatic chamfering device for metal sheets is urgently needed to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic chamfering device for metal sheets to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic chamfering device for metal sheets, comprising: a worktable, the worktable having a hollow cavity inside, a vacuum adsorption device inside the hollow cavity, the vacuum adsorption device including a honeycomb-shaped tabletop on the top of the worktable, a vacuum pump inside, the honeycomb-shaped tabletop and the vacuum pump being connected via a vacuum pipe, a magnetic sheet being provided on the honeycomb-shaped tabletop, a Y-axis drive assembly being installed on the side of the worktable, a support frame being connected to the Y-axis drive assembly, the support frame being driven by the Y-axis drive assembly and moving along the Y-axis direction, a crossbeam being provided on its top, an X-axis drive assembly being installed on the front side of the crossbeam, a vision inspection device being provided on the top of the vision inspection device including an industrial camera being provided on the top of the crossbeam, a ring light source being provided around the outer periphery of the industrial camera, a Z-axis drive assembly being connected to the end of the X-axis drive assembly, a rotary drive assembly being vertically connected to the end of the Z-axis drive assembly via a flange, and a chamfering assembly being connected to the lower end of the rotary drive assembly.

[0005] Furthermore, the Y-axis drive assembly includes: Y-axis guide rails on both sides of the worktable, a Y-axis lead screw parallel to the side of the Y-axis guide rail, a Y-axis servo motor connected to the Y-axis lead screw, a Y-axis slide on the Y-axis guide rail, the Y-axis slide being connected to the Y-axis lead screw and driven by the Y-axis servo motor to move along the Y-axis direction, and the Y-axis slide being fixedly connected to the support frame.

[0006] Furthermore, the X-axis drive assembly includes: an X-axis guide rail mounted on the front side of the crossbeam, an X-axis lead screw inside the X-axis guide rail, an X-axis servo motor at the end of the X-axis lead screw, an X-axis slide on the X-axis guide rail, the X-axis slide being connected to the X-axis lead screw and driven by the X-axis servo motor to move along the X-axis direction, and the X-axis slide being fixedly connected to the Z-axis drive assembly.

[0007] Furthermore, the Z-axis drive assembly includes: a lift fixed on the X-axis slide, and a rotary drive assembly connected to the lower end of the lift.

[0008] Furthermore, the rotary drive assembly includes a disc-shaped harmonic reducer, the hollow shaft of which can rotate 350°, and a chamfered assembly is connected to its lower end.

[0009] Preferably, the device further includes a control system, which is electrically connected to the Y-axis drive assembly, the X-axis drive assembly, the Z-axis drive assembly, the rotation drive assembly, and the vision inspection device.

[0010] Compared with existing technologies, the advantages of this invention are as follows: This invention achieves all-round stable adsorption of sheet metal, especially thin sheet metal, through a dual fixing mechanism of multi-zone independent vacuum adsorption on a honeycomb table and magnetic enhancement by magnetic sheets, preventing displacement or warping deformation during processing. Furthermore, the lifting mechanism precisely controls the vertical feed of the cutting tool, and the harmonic reducer of the rotary drive component supports 350° multi-angle adjustment of the cutting tool, enabling precise operation on complex contours. The pneumatic quick-change interface allows for second-level tool switching, adapting to various process requirements such as roughing and finishing, improving equipment utilization. Micro-orifice cooling nozzles precisely spray lubricant through high-pressure hoses, effectively reducing cutting temperature, tool wear, and extending tool life. Finally, the vision inspection device integrates an industrial camera and a ring light source to identify the sheet metal contour in real time and dynamically generate processing paths, supporting automated processing of complex chamfers such as arcs and bevels, reducing manual intervention. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is the front view of the present utility model;

[0013] Figure 3This is a top view of the present invention;

[0014] In the diagram: 1. Workbench; 2. Vacuum adsorption device; 201. Honeycomb table surface; 202. Vacuum pump; 203. Magnetic sheet; 3. Y-axis drive assembly; 301. Y-axis guide rail; 302. Y-axis lead screw; 303. Y-axis servo motor; 304. Y-axis slide; 4. Support frame; 401. Crossbeam; 5. X-axis drive assembly; 501. X-axis guide rail; 502. X-axis lead screw; 503. X-axis servo motor; 504. X-axis slide; 6. Vision inspection device; 601. Industrial camera; 602. Ring light source; 7. Z-axis drive assembly; 701. Lifting platform; 8. Rotary drive assembly; 801. Harmonic reducer; 9. Chamfering assembly; 901. Pneumatic quick-change interface; 902. Micro-pore cooling nozzle; 903. High-pressure hose. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0016] Please refer to Figure 1-3 This utility model provides an automatic chamfering device for metal sheets, comprising: a workbench 1, the workbench 1 having a hollow cavity inside, a vacuum adsorption device 2 inside the hollow cavity, the vacuum adsorption device 2 including a honeycomb-shaped tabletop 201 on the top of the workbench 1, a vacuum pump 202 inside, the honeycomb-shaped tabletop 201 and the vacuum pump 202 being connected via a vacuum pipe, a magnetic sheet 203 on the honeycomb-shaped tabletop 201, a Y-axis drive assembly 3 mounted on the side of the workbench 1, and a support frame 4 connected to the Y-axis drive assembly 3. The support frame 4 is driven by the Y-axis drive assembly 3 and moves along the Y-axis direction. A crossbeam 401 is provided on its top. An X-axis drive assembly 5 is installed on the front side of the crossbeam 401. A vision inspection device 6 is provided on the top. The vision inspection device 6 includes an industrial camera 601 on the top of the crossbeam 401. A ring light source 602 is provided on the outer periphery of the industrial camera 601. A Z-axis drive assembly 7 is connected to the end of the X-axis drive assembly 5. A rotary drive assembly 8 is vertically connected to the end of the Z-axis drive assembly 7 through a flange. A chamfering assembly 9 is connected to the lower end of the rotary drive assembly 8.

[0017] The workbench 1 serves as the basic support platform for the device, providing stable support. The vacuum adsorption device 2 adsorbs the substrate through vacuum negative pressure. The honeycomb tabletop 201 is composed of densely arranged hexagonal honeycomb units, each with an independent vacuum adsorption hole at the bottom. Inside the tabletop, the adsorption blocks are physically isolated by flexible sealing strips or partitions to ensure that the vacuum environments of different blocks do not interfere with each other. Each adsorption block is connected to an independent vacuum pipe, allowing for independent adsorption of substrates of different sizes. Magnetic sheets 203 enhance local fixing force. The Y-axis drive assembly 3 is installed on both sides of the workbench 1, parallel to the base guide rail, driving the support frame 4 to move longitudinally along the Y-axis to achieve longitudinal positioning of the tool. The support frame 4 and crossbeam 401 provide high rigidity support, bearing the X-axis and Z-axis drive components, integrating a vision inspection system to suppress processing vibration and ensure the stability of each moving component. The X-axis drive component 5 drives the chamfering component to move laterally along the X-axis to achieve lateral positioning of the tool. The vision inspection device 6 monitors the position and processing quality of the sheet metal in real time through an industrial camera 601 and a ring light source 602, accurately identifying the edge of the sheet metal and the chamfer contour, assisting in automatic positioning and error compensation. The Z-axis drive component 7 controls the tool to rise and fall vertically along the Z-axis to adjust the processing depth. The rotation drive component 8 drives the tool to rotate at multiple angles to adapt to complex chamfer contours such as arcs and bevels. The chamfering component 9 performs the chamfering process.

[0018] The Y-axis drive assembly 3 includes: Y-axis guide rails 301 on both sides of the worktable 1; Y-axis lead screws 302 parallel to the side of the Y-axis guide rails 301; Y-axis servo motors 303 connected to the Y-axis lead screws 302; Y-axis slides 304 on the Y-axis guide rails 301; Y-axis slides 304 connected to the Y-axis lead screws 302 and driven by the Y-axis servo motors 303 to move along the Y-axis direction; and Y-axis slides 304 fixedly connected to the support frame 4.

[0019] The Y-axis guide rail 301 and Y-axis lead screw 302 provide high-precision guidance and transmission. The Y-axis servo motor 303 drives the Y-axis slide 304 to move through the lead screw, ensuring that the support frame 4 moves smoothly and accurately along the Y-axis and reducing machining errors.

[0020] The X-axis drive assembly 5 includes: an X-axis guide rail 501 mounted on the front side of the crossbeam 401; an X-axis lead screw 502 inside the X-axis guide rail 501; an X-axis servo motor 503 at the end of the X-axis lead screw 502; an X-axis slide 504 on the X-axis guide rail 501; the X-axis slide 504 connected to the X-axis lead screw 502 and driven by the X-axis servo motor 503 to move along the X-axis direction; and the X-axis slide 504 fixedly connected to the Z-axis drive assembly 7.

[0021] Among them, the X-axis guide rail 501 and the X-axis lead screw 502 realize precise positioning in the X-axis direction, and the X-axis servo motor 503 drives the X-axis slide 504 to move, which works in conjunction with the Y-axis drive to form a two-dimensional planar positioning capability, covering the entire area of ​​the board.

[0022] The Z-axis drive assembly 7 includes: a lifting platform 701 fixed on the X-axis slide 504, and a rotary drive assembly 8 connected to the lower end of the lifting platform 701.

[0023] Among them, the lifting platform 701 adjusts its height mechanically or hydraulically to precisely control the cutting depth of the blade, adapting to different plate thicknesses and chamfering requirements.

[0024] The rotary drive assembly 8 includes a disc-shaped harmonic reducer 801, the hollow shaft of which can rotate 350°, and a chamfering assembly 9 is connected to its lower end.

[0025] Among them, the harmonic reducer 801 transmits rotational power through a hollow shaft, supports 350° rotation, avoids the angle limitation of traditional reducers, and realizes complex chamfer paths.

[0026] The chamfering assembly 9 includes a pneumatic quick-change interface 901 and a microporous cooling nozzle 902, wherein the microporous cooling nozzle 902 is connected to an external lubrication pump via a high-pressure hose 903.

[0027] Among them, the pneumatic quick-change interface (901) enables tool switching in seconds, and the micro-hole cooling nozzle 902 delivers coolant through the high-pressure hose 903, which is precisely sprayed to the contact point between the tool and the plate, reducing the processing temperature, reducing burrs, and improving the surface finish.

[0028] The device also includes a control system, which is electrically connected to the Y-axis drive assembly 3, the X-axis drive assembly 5, the Z-axis drive assembly 7, the rotation drive assembly 8, and the vision inspection device 6.

[0029] When using this utility model, the metal sheet to be processed is first placed on the honeycomb table 201 of the workbench 1. The vacuum adsorption device 2 is started, and the vacuum pump 202 draws in air, causing the sheet to be adsorbed on the table. The magnetic sheet 203 enhances the local adsorption force, preventing the thin sheet from warping and deforming, and ensuring that the sheet is free from displacement and vibration during processing, laying the foundation for subsequent high-precision processing. The vision inspection device 6 scans the sheet, and the industrial camera 601, with the assistance of the ring light source 602, captures the edge image of the sheet. The image processing system identifies the outline of the sheet, the chamfer position, and complex shapes such as arcs and slopes, generates processing path data, provides high-precision positioning information, and guides the multi-axis motion system to adjust the tool path. Based on visual inspection data, the Y-axis, X-axis, Z-axis, and rotary axis are driven to move in tandem, positioning the tool to the machining start point. The Y-axis servo motor 303 drives the Y-axis lead screw 302, causing the support frame 4 to move longitudinally along the worktable. The X-axis servo motor 503 drives the X-axis lead screw 502, causing the Z-axis drive assembly 7 to move laterally along the crossbeam 401. The lifting platform 701 controls the tool to vertically press down to the preset machining depth. The harmonic reducer 801 drives the tool to rotate within a 350° range to match the chamfer profile angle. The chamfering assembly 9 is activated, and machining proceeds along the preset path. The pneumatic quick-change interface 901 selects the tool according to machining requirements. The micro-orifice cooling nozzle 902 precisely sprays lubricant through the high-pressure hose 903 to reduce cutting temperature. After machining, the sheet metal is released, the vacuum adsorption device 2 is turned off, the sheet metal is released from its fixation, and the finished sheet metal is removed by a robotic arm or manually. Residual debris on the table is cleaned, preparing for the next machining cycle, achieving continuous production.

[0030] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. An automatic chamfering device for metal sheets, characterized in that, include: A workbench (1) is provided with a vacuum adsorption device (2) inside. The vacuum adsorption device (2) includes a honeycomb-shaped platform (201) on the top of the workbench (1) and a vacuum pump (202) inside. The honeycomb-shaped platform (201) and the vacuum pump (202) are connected through a vacuum pipe. A magnetic sheet (203) is provided on the honeycomb-shaped platform (201). A Y-axis drive assembly (3) is installed on the side of the workbench (1). A support frame (4) is connected to the Y-axis drive assembly (3). The support frame (4) is driven by the Y-axis drive assembly (3) and moves along the Y-axis. The device moves along the axis and has a crossbeam (401) on its top. An X-axis drive assembly (5) is installed on the front side of the crossbeam (401), and a vision inspection device (6) is installed on the top. The vision inspection device (6) includes an industrial camera (601) on the top of the crossbeam (401), and a ring light source (602) on the outer periphery of the industrial camera (601). The X-axis drive assembly (5) is connected to a Z-axis drive assembly (7) at its end. The Z-axis drive assembly (7) is vertically connected to a rotary drive assembly (8) through a flange at its end. A chamfering assembly (9) is connected to the lower end of the rotary drive assembly (8).

2. The automatic chamfering device for metal sheets according to claim 1, characterized in that, The Y-axis drive assembly (3) includes: Y-axis guide rails (301) on both sides of the worktable (1), Y-axis lead screws (302) parallel to the side of the Y-axis guide rails (301), Y-axis servo motors (303) connected to the Y-axis lead screws (302), Y-axis slides (304) on the Y-axis guide rails (301), Y-axis slides (304) connected to the Y-axis lead screws (302), driven by the Y-axis servo motors (303) and moving along the Y-axis direction, and Y-axis slides (304) fixedly connected to the support frame (4).

3. The automatic chamfering device for metal sheets according to claim 1, characterized in that, The X-axis drive assembly (5) includes: an X-axis guide rail (501) mounted on the front side of the crossbeam (401), an X-axis lead screw (502) inside the X-axis guide rail (501), an X-axis servo motor (503) at the end of the X-axis lead screw (502), an X-axis slide (504) on the X-axis guide rail (501), the X-axis slide (504) being connected to the X-axis lead screw (502) and driven by the X-axis servo motor (503) to move along the X-axis direction, and the X-axis slide (504) being fixedly connected to the Z-axis drive assembly (7).

4. The automatic chamfering device for metal sheets according to claim 3, characterized in that, The Z-axis drive assembly (7) includes: a lift (701) fixed on the X-axis slide (504), and a rotary drive assembly (8) connected to the lower end of the lift (701).

5. The automatic chamfering device for metal sheets according to claim 1, characterized in that, The rotary drive assembly (8) includes a disc-shaped harmonic reducer (801), the hollow shaft of which can rotate 350° and is connected to a chamfering assembly (9) at its lower end.

6. The automatic chamfering device for metal sheets according to claim 1, characterized in that, The chamfering assembly (9) includes a pneumatic quick-change interface (901) and a microporous cooling nozzle (902), which is connected to an external lubrication pump via a high-pressure hose (903).

7. The automatic chamfering device for metal sheets according to claim 1, characterized in that, The device also includes a control system, which is electrically connected to the Y-axis drive assembly (3), the X-axis drive assembly (5), the Z-axis drive assembly (7), the rotation drive assembly (8), and the vision inspection device (6).

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