Robot laser cutting small contour device

Abstract

The utility model relates to a laser drilling device, in particular to a robot laser cutting small profile device. The device structurally comprises a robot workbench and a cross beam positioning workbench, a six-axis mechanical arm is fixed to the robot workbench, the tail end of the six-axis mechanical arm is connected with a small-contour interpolation cutting head for a robot, and positioning sensors are arranged on the small-contour interpolation cutting head for the robot and the cross beam positioning workbench. The positioning sensor is electrically connected with a control system, and the control system is further electrically connected with the six-axis mechanical arm and the small contour interpolation cutting head for the robot. According to the robot laser cutting small contour device, machining of micro holes of large special-shaped workpieces can be achieved, the machining precision is high, and the control automation degree is high.

Description

Technical Field

[0001] This utility model relates to a laser drilling device, and more particularly to a robotic laser cutting device for small contours. Background Technology

[0002] In the current technology, drilling holes in irregularly shaped steel beams such as automobile crossbeams is mostly done using multi-joint robots. These robots can process profiles from multiple angles and directions, which greatly improves processing efficiency and reduces labor intensity. However, because the robot has many joints, the precision control of the robot's end effector has become a problem that is difficult to solve with existing technology. Summary of the Invention

[0003] To address the problems of existing technologies, this utility model provides a robotic laser cutting device for small contours, which can process micro-holes in large irregularly shaped workpieces with high processing accuracy and a high degree of automation.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A robotic laser cutting device for small contours includes a robotic worktable and a beam positioning worktable. A six-axis robotic arm is fixed on the robotic worktable, and the end of the six-axis robotic arm is connected to a robotic small contour interpolation cutting head. Positioning sensors are provided on the robotic small contour interpolation cutting head and the beam positioning worktable. The positioning sensors are electrically connected to a control system, and the control system is also electrically connected to the six-axis robotic arm and the robotic small contour interpolation cutting head.

[0006] The six-axis robotic arm includes a base fixed to the robot's worktable. A waist rotation joint driven by a first motor is screwed onto the base. The waist rotation joint rotates around an axis in a horizontal plane. Above the waist rotation joint is a shoulder pitch joint driven by a second motor. The shoulder pitch joint rotates around an axis in a vertical plane. The front end of the shoulder pitch joint is screwed onto the elbow pitch joint. The rear end of the elbow pitch joint is pivotally connected to one side of a wrist rotation joint. The other side of the wrist rotation joint is pivotally connected to the front end of a wrist swing joint. The wrist swing joint is hinged to the robot's small contour interpolation cutting head.

[0007] The positioning sensor is either a displacement sensor or a laser sensor.

[0008] The robot uses a GF102+101 type 4kW robot dual-axis small contour interpolation cutting head.

[0009] The beam positioning worktable includes two worktable bases, each with a slide rail and a fixed seat. A fixed support beam is mounted on the fixed seat. The fixed support beam has a first shaft elastic support and a first hole elastic support. A movable support beam slides on the slide rail. The movable support beam has a second shaft elastic support and a second hole elastic support. The movable support beam is driven by a gear and rack mechanism driven by a motor.

[0010] The gear and rack mechanism includes a rack seat fixed on the base of the worktable on both sides, a rack fixed on the rack seat, a motor fixed on the base of the worktable on one side, the motor shaft of the motor drives the gear to rotate, the gear meshes with the rack, a gear shaft is linked between the two gears, and the movable support beam is connected to the gear shaft by a bracket.

[0011] The beneficial effects of the technical solution provided by this utility model are:

[0012] This invention enables high-precision three-dimensional cutting of automotive crossbeams. By adding a small-contour interpolation cutting head to the robot, the workpiece is precisely cut after the multi-joint robot completes the overall spatial positioning. This overcomes the problem of insufficient processing accuracy of the original single multi-joint robot. Furthermore, in conjunction with a separately set crossbeam positioning worktable, accurate positioning of the workpiece is achieved, providing a further foundation for precision machining. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional view of the first overall structure of a robotic laser cutting device for small contours according to the present invention;

[0015] Figure 2 This is a three-dimensional view of the second integral structure of a robotic laser cutting device for small contours according to the present invention;

[0016] Figure 3 This is a first structural perspective view of the beam positioning worktable of a robot laser cutting small contour device according to the present invention.

[0017] Figure 4 This is a second three-dimensional view of the crossbeam positioning worktable of a robot laser cutting small contour device according to the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Example 1

[0019] As attached Figure 1 , 2 As shown, a robotic laser cutting device for small contours in this embodiment includes a robotic worktable 1 and a crossbeam positioning worktable 2. A six-axis robotic arm 3 is fixed on the robotic worktable 1. The end of the six-axis robotic arm is connected to a robotic small contour interpolation cutting head 4. Positioning sensors are provided on the robotic small contour interpolation cutting head 4 and the crossbeam positioning worktable 2. The positioning sensors are electrically connected to the control system. The control system is also electrically connected to the six-axis robotic arm 3 and the robotic small contour interpolation cutting head 4.

[0020] The six-axis robotic arm 3 of this embodiment includes a base 31 fixed to the robot workbench 1. A waist rotation joint 33 driven by a first motor 32 is screwed onto the base 31. The waist rotation joint 33 rotates around an axis in a horizontal plane. A shoulder pitch joint 35 driven by a second motor 34 is screwed above the waist rotation joint 33. The shoulder pitch joint 35 rotates around an axis in a vertical plane. The front end of the shoulder pitch joint 35 is screwed onto the elbow pitch joint 36. The rear end of the elbow pitch joint 36 is pivotally connected to one side of the wrist rotation swing joint 37. The other side of the wrist rotation swing joint 37 is pivotally connected to the front end of the wrist swing rotation joint 38. The wrist swing rotation joint 38 is hinged to the robot small contour interpolation cutting head 4.

[0021] In this embodiment, the positioning sensor is a displacement sensor or a laser sensor.

[0022] The robot uses a GF102+101 type 4kW robot dual-axis small contour interpolation cutting head.

[0023] As attached Figure 3 , 4 As shown, the beam positioning workbench 2 in this embodiment includes two workbench bases 21. The workbench bases 21 are provided with slide rails 22 and fixed seats 23. Fixed support beams 24 are mounted on the fixed seats 23. The fixed support beams 24 are provided with a first shaft elastic support 25 and a first hole elastic support 26. A movable support beam 27 slides on the slide rails 22. The movable support beams 27 are provided with a second shaft elastic support 28 and a second hole elastic support 29. The movable support beams 27 are driven by a gear and rack mechanism driven by a motor 210.

[0024] The gear and rack mechanism of this embodiment includes a rack seat 211 fixed on the base 21 of the worktable on both sides, a rack 212 fixed on the rack seat 211, a motor 210 fixed on one side of the worktable base, the motor shaft of the motor 210 drives the gear 213 to rotate, the gear 213 meshes with the rack 211, and a gear shaft 214 is linked between the two gears, and the movable support beam 27 is connected to the gear shaft 214 through a bracket 215.

[0025] This embodiment of a robotic laser cutting device for small contours involves installing and fixing the irregularly shaped frame beam to be processed on a beam positioning worktable 2, thereby completing its positioning. Then, a six-axis robotic arm moves the robotic small contour interpolation cutting head 4 to the front of the hole position on the workpiece to be processed, and achieves overall positioning through a positioning sensor. After positioning is completed, the six-axis robotic arm is fixed in place, and the robotic small contour interpolation cutting head 4 is started to perform a drilling operation using its precise movements, thus completing the precise drilling process.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A robotic laser cutting device for small contours, comprising a robotic worktable and a beam positioning worktable, characterized in that, A six-axis robotic arm is fixed on the robot workbench. The end of the six-axis robotic arm is connected to a small contour interpolation cutting head for robots. The small contour interpolation cutting head for robots and a positioning sensor are set on the crossbeam positioning workbench. The positioning sensor is electrically connected to the control system. The control system is also electrically connected to the six-axis robotic arm and the small contour interpolation cutting head for robots.

2. The robotic laser cutting device for small contours according to claim 1, characterized in that, The six-axis robotic arm includes a base fixed to the robot workbench. A waist rotation joint driven by a first motor is screwed onto the base. The waist rotation joint rotates around an axis in a horizontal plane. Above the waist rotation joint is a shoulder pitch joint driven by a second motor. The shoulder pitch joint rotates around an axis in a vertical plane. The front end of the shoulder pitch joint is screwed onto the elbow pitch joint. The rear end of the elbow pitch joint is pivotally connected to one side of a wrist rotation joint. The other side of the wrist rotation joint is pivotally connected to the front end of a wrist swing joint. The wrist swing joint is hinged to the robot's small contour interpolation cutting head.

3. The robotic laser cutting device for small contours according to claim 1, characterized in that, The positioning sensor is a displacement sensor or a laser sensor.

4. The robotic laser cutting device for small contours according to claim 1, characterized in that, The robot small contour interpolation cutting head is a GF102+101 type 4kW robot dual-axis small contour interpolation cutting head.

5. The robotic laser cutting device for small contours according to claim 1, characterized in that, The beam positioning workbench includes two workbench bases, each with a slide rail and a fixed seat. A fixed support beam is mounted on the fixed seat. The fixed support beam has a first shaft elastic support and a first hole elastic support. A movable support beam slides on the slide rails. The movable support beam has a second shaft elastic support and a second hole elastic support. The movable support beam is driven by a gear and rack mechanism driven by a motor.

6. The robotic laser cutting device for small contours according to claim 5, characterized in that, The gear and rack mechanism includes a rack seat fixed on the base of the worktable on both sides, a rack fixed on the rack seat, a motor fixed on the base of the worktable on one side, the motor shaft of the motor drives the gear to rotate, the gear meshes with the rack, a gear shaft is linked between the two gears, and the movable support beam is connected to the gear shaft by a bracket.

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