Intelligent cutting workstation for flexible metal plates

Abstract

The utility model provides an intelligent cutting workstation for flexible metal plates, which comprises a robot ground rail, a robot, a cutting table, a cutting tool head, a coarse positioning vision device, a line laser and a dust removal system, the cutting table is a workpiece placing platform, is provided with a suction opening and is communicated with an air pipe of the dust removal system; the robot ground rail is arranged on the long edge side of the cutting table and is a moving path of the robot; the cutting tool head and the line laser are arranged at the tail end of a working shaft of the robot, and the coarse positioning vision device is arranged on a ground rail of the robot; a camera of the coarse positioning vision device is located above the cutting table. The problems that in the cutting process of large-size long workpiece products, multi-person collaborative operation is needed, and the space is limited can be solved; and meanwhile, intelligent machine operation is conducted in the whole process from workpiece positioning to cutting, the consistency of cut products can be guaranteed, and the cutting precision and cutting efficiency of the products are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible large-size metal plate intelligent cutting system. Background Art

[0002] In the heavy industry, the cutting of metal sheets is generally done by machine tools or manual handheld cutting equipment. Another method is to cut large-area metal sheets through traditional manual teaching. The processing flow is to use traditional mechanical fixtures to fix the metal sheets, that is, to position the workpiece product through hard limit; then plan the cutting trajectory through marking or teaching, and finally perform the cutting process.

[0003] The existing cutting methods have the following shortcomings:

[0004] 1. The tooling positioning and clamping of large-sized metal sheets is relatively complicated, and requires high skills of operators;

[0005] 2. Large-size and long workpieces require collaborative work by multiple people. At the same time, in a limited space, the cutting angle is easily limited during processing, and the skill levels of different workers vary. These will make it difficult to ensure the consistency of cutting quality and precision of the same workpiece;

[0006] 3. The metal sheet cutting process will generate a lot of metal dust, metal sparks, cutting noise, etc., which will affect the physical and mental health of workers;

[0007] 4. There are many types of products, and the specifications and sizes vary greatly. The consistency of the incoming materials is poor, so multiple mechanical hard limit clamping and positioning are required, which is time-consuming and labor-intensive;

[0008] 5. The machine tool processing cost is high and the manual cutting efficiency is low. Utility Model Content

[0009] The purpose of the utility model is to overcome the defects of the prior art and provide a flexible large-size metal plate intelligent cutting workstation.

[0010] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0011] A flexible metal sheet intelligent cutting workstation comprises a robot rail, a robot, a cutting table, a cutting tool head, a coarse positioning visual device, a line laser and a dust removal system. The cutting table is a workpiece placement platform, is provided with an exhaust port, and is connected to the air duct of the dust removal system; the robot rail is arranged on the long side of the cutting table and is the moving path of the robot; the cutting tool head and the line laser are arranged at the end of the working axis of the robot, and the coarse positioning visual device is arranged on the robot rail; the camera of the coarse positioning visual device is located above the cutting table.

[0012] Furthermore, the robot ground rail is driven by a servo motor with a position accuracy within 2 mm. Furthermore, a protective plate is provided on the robot ground rail to protect the dust generated during the cutting process from polluting the guide rail slider and the gear rack, thereby extending the service life of the ground rail.

[0013] Furthermore, the robot is a six-axis industrial robot; further, a six-axis industrial robot with a load of more than 20kg, a working radius of more than 1.5 meters, and a repeated positioning accuracy of less than 0.04mm is selected.

[0014] Furthermore, the cutting table is provided with virtual partitions, and multiple workpieces can be placed when the area is large enough. Furthermore, the cutting table has multiple air outlets, which are arranged at the lower part of the side wall.

[0015] The cutting tool head can be a flame, plasma or laser cutting torch.

[0016] Furthermore, the rough positioning visual device includes a bracket and a camera, wherein the bracket is arranged on the robot ground rail, and the camera is arranged on the crossbeam of the bracket to take pictures of the workpiece on the cutting table, identify the image and relative position of the workpiece, and roughly position the workpiece. Furthermore, the camera is a 3D visual camera.

[0017] The line laser scans and accurately positions the workpiece, and further selects a line laser with a positioning accuracy within 1 mm.

[0018] The dust removal system comprises a dust collector and an air duct, one end of the air duct is connected to the air exhaust port of the cutting table, and the other end is connected to the dust collector. The dust collector performs centralized dust removal on the smoke and dust sucked in and then discharges them.

[0019] The above-mentioned flexible metal sheet intelligent cutting workstation can further be provided with a pipeline hanger, which is arranged on the top axis of the robot to constrain related cables, connectors and air pipes while following the movement of the robot.

[0020] The above-mentioned flexible metal sheet intelligent cutting workstation can further set up safety fences to isolate the construction area and ensure the safety of personnel.

[0021] Beneficial effects of the utility model:

[0022] The flexible metal sheet intelligent cutting workstation provided by the utility model, the robot ground rail and the cutting robot can solve the problem that the cutting process of large-size and long workpieces requires the cooperation of multiple people and limited space. The coordination of coarse positioning vision and fine positioning line laser solves the problems of complex positioning and clamping of traditional tooling and high skill requirements of operators. At the same time, from workpiece positioning to cutting, the whole process of intelligent machine operation can ensure the consistency of cutting products and greatly improve the cutting accuracy and cutting efficiency of products.

[0023] The flexible cutting workstation of the utility model solves some deficiencies of the prior art and can meet the cutting processing requirements of various types and small batches of products.

[0024] The following is an example of the specific implementation of the present invention in conjunction with the accompanying drawings: BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axial schematic diagram of a flexible metal sheet intelligent cutting workstation provided by an embodiment of the utility model.

[0026] Figure 2 It is a top view schematic diagram of a flexible metal sheet intelligent cutting workstation provided by an embodiment of the utility model.

[0027] Figure 3 It is an axonometric diagram of a robot and a cutting head of a flexible metal sheet intelligent cutting workstation provided by an embodiment of the utility model.

[0028] Figure 4 It is a workflow diagram of the flexible metal sheet intelligent cutting workstation provided by the embodiment of the utility model.

[0029] Reference numerals:

[0030] 1 robot track, 2 robots, 3 cutting tables, 4 cutting tool heads

[0031] 5 coarse positioning visual device, 501 bracket, 502 camera

[0032] 6-line laser, 7 dust removal system, 701 dust removal machine, 702 air duct

[0033] 8 pipeline hanging, 9 safety fence DETAILED DESCRIPTION

[0034] The specific embodiments described herein are only used to explain the technical solution of this patent, rather than to limit the disclosed technical solution. It should also be noted that, for ease of description, only the parts related to the disclosed technical solution are shown in the drawings, rather than all structures.

[0035] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structures of the device components and / or modules themselves mentioned in the embodiments, if not described in detail, are understandable to those skilled in the art based on the existing public technology or commercially available products.

[0036] like Figure 1-3 As shown, the flexible metal sheet intelligent cutting workstation provided in this embodiment includes a robot rail 1, a robot 2, a cutting table 3, a cutting tool head 4, a coarse positioning visual device 5, a line laser 6, a dust removal system 7, a pipeline hanger 8 and a safety fence 9. The cutting table 3 is a workpiece placement platform, provided with an exhaust port, and connected to the air duct of the dust removal system 7; the robot rail 1 is arranged on the long side of the cutting table 3, which is the moving path of the robot 2; the cutting tool head 4 and the line laser 6 are arranged at the end of the working axis of the robot 2, and the coarse positioning visual device 5 is arranged on the robot rail 1; the camera of the coarse positioning visual device 5 is located above the cutting table 3, and the pipeline hanger 8 is arranged on the top axis of the robot 2.

[0037] The robot ground rail 1 uses a servo motor and a reducer to drive the precision gear rack to rotate, and the slider guide rail slides and guides, with a displacement accuracy of 2mm. The base of the robot 2 axis is installed on the slider of the robot ground rail, which can move and stop quickly, accurately and smoothly. The ground rail driven by the motor and gear rack has the characteristics of small size, high precision and light weight, which greatly increases the movement space and reach of the robot. Installing a protective plate on the ground rail can effectively protect the dust generated during the cutting process from polluting the guide rail slider gear rack and extend the service life of the ground rail.

[0038] The robot 2 is preferably a six-axis industrial robot, such as a six-axis industrial robot with a load of 20kg, a working radius of 1813mm, and a repeatability of 0.04mm, which can meet the cutting process requirements of most metal plates.

[0039] A long cutting table 3 with an inner frame size of 6600x1100mm and a height of 800mm can be selected. A plurality of air vents are arranged at the lower part of the inner wall of the cutting table 3, and the fume and dust generated by cutting are absorbed by the air duct and concentrated in the dust removal equipment, so as to minimize pollutants in the air, improve environmental quality, and protect the health of workers.

[0040] The cutting table 3 may be further provided with virtual partitions to place multiple workpieces for processing.

[0041] The cutting tool head 4 is fixed to the end of the robot, and the product is cut according to the process path planned for the robot. The existing flame, plasma or laser cutting torches on the market can be used.

[0042] The coarse positioning visual device 5 can be composed of a bracket 501 and a camera 502. The bracket 501 is arranged on the robot ground rail 1, and the camera 502 is arranged on the crossbeam of the bracket 501 to take pictures of the workpiece on the cutting table 3, identify the image and relative position of the workpiece, and roughly position the workpiece. The camera 502 is preferably a 3D visual camera. The camera installation height of the coarse positioning visual device 5 is set to 2200mm, and the workpiece is placed on the long cutting table 3 with a height of 800mm. The coarse positioning visual device can identify the workpiece width range of 1200mm.

[0043] The line laser 6 scans and accurately positions the workpiece, and preferably a line laser with a positioning accuracy within 1 mm can further help improve the cutting accuracy of the product.

[0044] The dust removal system 7 includes a dust collector 701 and an air duct 702. One end of the air duct 702 is connected to the air outlet of the cutting table 3, and the other end is connected to the dust collector 701. The dust collector 701 performs centralized dust removal on the smoke and dust sucked in and then discharges them. The dust removal system can also collect and recycle a large amount of useful substances and energy, which is also a reasonable resource utilization for environmental protection.

[0045] The pipeline hanger 8 constrains the plasma cutting torch, related cables, connectors and gas pipes in the positioning system, and moves with the robot, and is set on the top axis of the robot 2.

[0046] A safety fence 9 is further set up to isolate the construction area in order to protect the equipment in the workstation and the personnel outside the station and prevent accidents.

[0047] refer to Figure 4 , the working process of the cutting workstation of the utility model is as follows:

[0048] S1: Manually use an overhead crane or cantilever crane to hoist the long workpiece to be cut and place it on the long cutting table;

[0049] S2: The coarse positioning vision takes a picture of the workpiece on the long cutting table under the coordinated movement of the ground rail, identifies the image and relative position of the workpiece, and performs coarse positioning of the workpiece;

[0050] S3: The precision positioning line laser at the end of the robot accurately positions the workpiece, the long cutting table dust removal system is turned on, and the cutting tool head cuts the metal sheet with the cooperation of the robot;

[0051] S4: After cutting, the metal sheet is manually hoisted from the long cutting table to the next process;

[0052] S5: S1-S4 are cycled in sequence until the whole batch of workpieces are cut.

[0053] The above is an example of the preferred implementation of the utility model, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A flexible metal sheet intelligent cutting workstation, characterized by: The invention comprises a robot rail (1), a robot (2), a cutting table (3), a cutting tool head (4), a coarse positioning visual device (5), a line laser (6) and a dust removal system (7); the cutting table (3) is a workpiece placement platform, provided with an air exhaust port, and connected to the air duct of the dust removal system (7); the robot rail (1) is arranged on the long side of the cutting table (3) and is the moving path of the robot (2); the cutting tool head (4) and the line laser (6) are arranged at the end of the working axis of the robot (2); the coarse positioning visual device (5) is arranged on the robot rail (1); and the camera of the coarse positioning visual device (5) is located above the cutting table (3).

2. The flexible metal sheet intelligent cutting workstation according to claim 1, characterized in that: The robot ground rail (1) is driven by a servo motor, and a protective plate is arranged on the ground rail (1).

3. The flexible metal sheet intelligent cutting workstation according to claim 1, characterized in that: The robot (2) is a six-axis industrial robot with a load of more than 20 kg, a working radius of more than 1.5 meters, and a repeated positioning accuracy within 0.04 mm.

4. The flexible metal sheet intelligent cutting workstation according to claim 1, characterized in that: The cutting table (3) is provided with a virtual partition for placing multiple workpieces for processing.

5. The flexible metal sheet intelligent cutting workstation according to claim 1, characterized in that: The cutting table (3) has a plurality of air exhaust ports, all of which are arranged at the lower part of the side wall.

6. The flexible metal sheet intelligent cutting workstation as claimed in claim 1, characterized in that: The cutting tool head (4) is a flame cutting torch, a plasma cutting torch or a laser cutting torch.

7. The flexible metal sheet intelligent cutting workstation as claimed in claim 1, characterized in that: The coarse positioning visual device (5) comprises a bracket (501) and a camera (502), wherein the bracket (501) is arranged on the robot ground rail (1), and the camera (502) is arranged on the crossbeam of the bracket (501) and is a 3D visual camera.

8. The flexible metal sheet intelligent cutting workstation as claimed in claim 1, characterized in that: The line laser (6) has a positioning accuracy within 1 mm.

9. The flexible metal sheet intelligent cutting workstation as claimed in claim 1, characterized in that: The dust removal system (7) comprises a dust collector (701) and an air duct (702); one end of the air duct (702) is connected to the air outlet of the cutting table (3), and the other end is connected to the dust collector (701).

10. The flexible metal sheet intelligent cutting workstation according to any one of claims 1 to 9, characterized in that: It also includes a pipeline hanger (8) which is arranged on the top axis of the robot (2) and is used to constrain related cables, connectors and air pipes while following the movement of the robot.

11. The flexible metal sheet intelligent cutting workstation according to any one of claims 1 to 9, characterized in that: A safety fence (9) is also provided.

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