A laser cutting device for articulated robots with a height calibration device

Abstract

This utility model discloses a joint robot laser cutting device with a height calibration device, relating to the field of robot laser cutting technology. It includes a guide recess, a joint robot assembly, and a laser cutting assembly. A cutting table is slidably mounted on the bottom inner end of the guide recess, a control panel is mounted on the front end of the cutting table, and a sliding seat is slidably mounted on the bottom inner end of the cutting table. This utility model enables height adjustment of the top plate, and through the cooperation of the height sensor and the control panel, it can precisely adjust the height of the laser cutting assembly. The displacement sensor on the laser cutting assembly can detect the distance between the laser cutting assembly and the processing material in real time and transmit the detection signal to the external control panel, thereby achieving precise calibration and adjustment of the laser cutting assembly height and effectively improving cutting quality.

Description

Technical Field

[0001] This utility model relates to the field of robotic laser cutting technology, and in particular to a joint robot laser cutting device with a height calibration device. Background Technology

[0002] Laser cutting is a processing method that uses a high-power-density laser beam to irradiate the material being cut, causing the material to rapidly melt, vaporize, ablate, or reach its ignition point. Simultaneously, a high-speed airflow coaxial with the laser beam blows away the molten material, thus cutting the material apart. Articulated robotic laser cutting equipment combines the flexibility of articulated robots with the high precision of laser cutting and is widely used in metal processing, automotive manufacturing, and machinery manufacturing.

[0003] However, existing articulated robot laser cutting equipment has some shortcomings in use. The height adjustment accuracy of the laser cutting head is low, making it difficult to achieve precise height calibration according to different thicknesses, materials, and cutting process requirements. This affects the cutting quality and can easily lead to problems such as incomplete cutting and excessive burrs. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a joint robot laser cutting device with a height calibration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a joint robot laser cutting device with a height calibration device, comprising a guide recess, a joint robot assembly, and a laser cutting assembly. A cutting table is slidably mounted on the bottom of the guide recess, a control panel is mounted on the front end of the cutting table, a sliding seat is slidably mounted on the bottom of the cutting table, a support frame is mounted on the upper end of the sliding seat, a displacement sensor is mounted on one end of the laser cutting assembly, a telescopic rod is mounted on the upper end of the support frame, a top plate is mounted on the extended end of the telescopic rod, four sets of guide cylinders are mounted on the upper end of the support frame, a height sensor is mounted on the front end of the top plate, guide rods are slidably mounted inside the four sets of guide cylinders, and an angle sensor is mounted on the rear side of the laser cutting assembly.

[0006] Preferably, the upper ends of the four sets of guide rods are all fixed to the lower end of the top plate, and the telescopic rods and height sensors are all connected to the control panel for signal transmission.

[0007] Preferably, the lower end of the articulated robot assembly is fixed to the upper end of the top plate, and the rear side of the laser cutting assembly is fixed to the movable end of the articulated robot assembly.

[0008] Preferably, both the displacement sensor and the angle sensor are electrically connected to the control panel, and both the articulated robot assembly and the laser cutting assembly are signal connected to the control panel.

[0009] Preferably, the cutting table is equipped with limit mechanisms at both ends, and pressure sensors are installed at both movable ends of the limit mechanisms. The limit mechanisms and the two sets of pressure sensors are all connected to the control panel for signal transmission.

[0010] Preferably, a left and right cylinder pushing mechanism is installed through one end of the guide recess, a left and right movement sensor is installed at one end of the cutting table, the extended end of the left and right cylinder pushing mechanism is fixed to one end of the cutting table, and both the left and right cylinder pushing mechanism and the left and right movement sensor are connected to the control panel for signal connection.

[0011] Preferably, a front and rear cylinder pushing mechanism is installed at the bottom of the inner side of the guide recess, a front and rear movement sensor is installed at the front end of the sliding seat, the extended end of the front and rear cylinder pushing mechanism is fixed to the front end of the sliding seat, and both the front and rear cylinder pushing mechanism and the front and rear movement sensor are connected to the control panel for signal connection.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, with the cooperation of the telescopic rod and the top plate, the height of the top plate can be adjusted. In addition, with the cooperation of the height sensor and the control panel, the height of the laser cutting component can be precisely adjusted. The displacement sensor on the laser cutting component can detect the distance between the laser cutting component and the processing material in real time and transmit the detection signal to the external control panel, thereby realizing the precise calibration and adjustment of the height of the laser cutting component and effectively improving the cutting quality.

[0013] 2. In this utility model, the multi-sensor collaboration significantly improves positioning and cutting accuracy: The equipment integrates multiple sets of high-precision sensors such as displacement sensors, height sensors, angle sensors, and pressure sensors, along with left-right movement sensors and front-back movement sensors, to achieve real-time detection of multi-dimensional parameters such as the left-right movement of the cutting table, the front-back movement of the sliding seat, the distance / angle of the laser cutting components, and the workpiece clamping force; through the closed-loop control of the control panel, the positioning accuracy of each actuator is controlled, and the laser cutting angle accuracy is also controlled, effectively avoiding human operation errors and greatly improving cutting quality.

[0014] 2. This utility model features a high degree of automation, improving processing efficiency: the left and right cylinder pushing mechanisms and the front and rear cylinder pushing mechanisms drive the cutting table and sliding seat to achieve automated movement, the limiting mechanism automatically clamps the workpiece, the telescopic rod, together with the guide cylinder and guide rod, adjusts the height of the top plate, and the articulated robot component drives the laser cutting component to complete multi-directional cutting operations; the entire process is centrally controlled through the control panel, eliminating the need for frequent manual intervention and significantly improving production efficiency. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a joint robot laser cutting device with a height calibration device; Figure 2 This utility model presents a front structural diagram of a joint robot laser cutting device with a height calibration device; Figure 3 A bottom view of the articulated robot component and sliding seat of an articulated robot laser cutting device with a height calibration device is provided for this utility model. Figure 4 This invention presents a partial perspective view of a joint robot laser cutting device with a height calibration device.

[0016] Legend: 1. Guide recess; 2. Articulated robot assembly; 3. Laser cutting assembly; 4. Cutting table; 5. Control panel; 6. Limiting mechanism; 7. Left and right cylinder pushing mechanism; 8. Front and rear cylinder pushing mechanism; 9. Sliding seat; 10. Support frame plate; 11. Displacement sensor; 12. Top plate; 13. Telescopic rod; 14. Guide cylinder; 15. Height sensor; 16. Guide rod; 17. Angle sensor; 18. Pressure sensor; 19. Left and right movement sensor; 20. Front and rear movement sensor. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model provides a laser cutting device for an articulated robot with a height calibration device, including a guide recess 1, an articulated robot assembly 2, and a laser cutting assembly 3. A cutting table 4 is slidably mounted on the bottom of the guide recess 1, and a control panel 5 is mounted on the front end of the cutting table 4. A sliding seat 9 is slidably mounted on the bottom of the cutting table 4, and a support frame plate 10 is mounted on the upper end of the sliding seat 9. A displacement sensor 11 is mounted on one end of the laser cutting assembly 3. A telescopic rod 13 is mounted on the upper end of the support frame plate 10, and a top plate 12 is mounted on the extended end of the telescopic rod 13. Four sets of guide cylinders 14 are mounted on the upper end of the support frame plate 10. A height sensor 15 is installed at the front end of component 2. Guide rods 16 are slidably installed inside the four sets of guide cylinders 14. An angle sensor 17 is installed on the rear side of the laser cutting component 3. The upper ends of the four sets of guide rods 16 are all fixed to the lower end of the top plate 12. The telescopic rod 13 and the height sensor 15 are both connected to the control panel 5 via signal. The lower end of the articulated robot component 2 is fixed to the upper end of the top plate 12. The rear side of the laser cutting component 3 is fixed to the movable end of the articulated robot component 2. The displacement sensor 11 and the angle sensor 17 are both electrically connected to the control panel 5. The articulated robot component 2 and the laser cutting component 3 are both connected to the control panel 5 via signal.

[0020] The specific settings and functions of this embodiment are described in detail below. The guide recess 1 is an integrally formed U-shaped channel steel structure with the groove opening facing upward. Two parallel T-shaped guide grooves are opened along the length of the inner side wall for sliding guidance of the cutting table 4. Wear-resistant steel plates are laid at the bottom inside to reduce wear when the cutting table 4 moves. Reinforcing ribs are welded to both ends of the guide recess 1 to improve the overall structural rigidity and prevent deformation during cutting operations. The cutting table 4 is a rectangular steel plate welded structure. T-shaped sliders that are adapted to the T-shaped guide grooves on the inner side of the guide recess 1 are fixed at the four corners of the bottom to realize horizontal sliding along the guide recess 1. The control panel 5 is embedded in the front end of the cutting table 4. Several strip-shaped chip removal holes are opened on the table surface, and an inclined chip removal groove is welded to the bottom to facilitate the collection of cutting waste. A support frame plate 10 is bolted to the upper end of the sliding seat 9. A telescopic rod 13 (using an electric push rod) is vertically installed at the center of the upper surface of the support frame plate 10. The extended end of the telescopic rod 13 is bolted to the lower center of the top plate 12. Four sets of guide cylinders 14 are vertically welded to the four corners of the upper surface of the support frame plate 10. Guide rods 16 are slidably installed inside each of the four sets of guide cylinders 14. The upper ends of the guide rods 16 are threaded to the four corners of the lower end of the top plate 12, forming a stable lifting guide structure to prevent the top plate 12 from tilting when it is raised or lowered. The articulated robot assembly 2 adopts a six-axis articulated robot, whose base is fixed to the rear side of the upper end face of the support frame plate 10 by T-bolts; the robot's movable end (end flange) is fixed to the rear side of the laser cutting assembly 3 by bolts, which can drive the laser cutting assembly 3 to achieve flexible movement in multiple directions and angles to meet the cutting needs of complex workpieces. The laser cutting assembly 3 uses a fiber laser cutting head, one end of which is fixedly mounted with a displacement sensor 11 (laser displacement sensor) to detect the relative distance between the laser cutting head and the workpiece surface in real time; an angle sensor 17 (dual-axis tilt sensor) is mounted on the rear side of the laser cutting assembly 3 via a bracket to monitor the tilt angle of the cutting assembly; the laser cutting assembly 3 is connected to the control panel 5, and parameters such as laser power and cutting speed can be adjusted through the control panel 5. The height sensor 15 is installed on the front end face of the top plate 12 (using a capacitive height sensor) to detect the height distance between the top plate 12 and the workpiece or the cutting table 4, and indirectly assist in calibrating the working height of the laser cutting assembly 3. The control panel 5 adopts an integrated structure of a 12-inch industrial touch screen and a PLC controller (Siemens S7-1200 series), which is embedded in the inclined mounting box at the front of the cutting table 4 (tilt angle 30°, convenient for operators to observe and operate); the control panel 5 has a built-in control program that can receive detection signals from various sensors and send control commands to various actuators (left and right cylinder push mechanism 7, front and rear cylinder push mechanism 8, telescopic rod 13, articulated robot assembly 2, laser cutting assembly 3, limit mechanism 6) to realize the automated operation of the equipment; it also has functions such as parameter setting, status display, and fault alarm.

[0021] Example 2: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, limit mechanisms 6 are installed at both ends of the cutting table 4. Pressure sensors 18 are installed at both movable ends of the limit mechanisms 6. The limit mechanisms 6 and the two sets of pressure sensors 18 are connected to the control panel 5 via signals. A left and right cylinder pushing mechanism 7 is installed through one end of the guide recess 1. A left and right movement sensor 19 is installed at one end of the cutting table 4. The extended end of the left and right cylinder pushing mechanism 7 is fixed to one end of the cutting table 4. The left and right cylinder pushing mechanism 7 and the left and right movement sensor 19 are both connected to the control panel 5 via signals. A front and rear cylinder pushing mechanism 8 is installed at the bottom of the guide recess 1. A front and rear movement sensor 20 is installed at the front end of the sliding seat 9. The extended end of the front and rear cylinder pushing mechanism 8 is fixed to the front end of the sliding seat 9. The front and rear cylinder pushing mechanism 8 and the front and rear movement sensor 20 are both connected to the control panel 5 via signals.

[0022] The overall effect of this embodiment is that the limiting mechanism 6 is installed at both ends of the cutting table 4 and is a double cylinder driven limiting structure. Pressure sensors 18 (strain gauge pressure sensors) are attached to the inner side of both movable ends (limiting plates). When the limiting plate clamps the workpiece, the pressure sensor 18 detects the clamping force to avoid excessive clamping force that could damage the workpiece or insufficient clamping force that could cause the workpiece to shift. The left and right cylinder pushing mechanism 7 adopts a double-rod cylinder, which is fixed to one end of the side wall of the guide recess 1 through a flange. Its extended end is fixedly connected to the center position of one end of the cutting table 4 through a floating joint, which is used to drive the cutting table 4 to move horizontally left and right along the guide recess 1. A left and right movement sensor 19 (using a laser displacement sensor) is installed on one end of the cutting table 4 near the left and right cylinder pushing mechanism 7, which monitors the left and right movement position of the cutting table 4 in real time and transmits the signal to the control panel 5. The front and rear cylinder pushing mechanism 8 is fixed in the middle of the bottom of the guide recess 1. A rodless cylinder is selected, and its sliding block is fixed to the front end of the sliding seat 9 through a connecting piece. The sliding seat 9 is an aluminum alloy casting structure, and a linear guide slider is installed at the bottom. It cooperates with the linear guide rail laid at the bottom of the cutting table 4 to realize the front and rear sliding. A front and rear movement sensor 20 (model OMRONE2E-X10D1-N) is installed at the front end of the sliding seat 9 to provide feedback on the front and rear movement distance of the sliding seat 9 and ensure the position control accuracy.

[0023] The usage and working principle of this device are as follows: Place the workpiece on the cutting table 4, and then use the control panel 5 to control the limiting mechanism 6 to fix the workpiece. After that, the control panel 5 controls the telescopic rod 13 to move up and down. The telescopic rod 13 drives the articulated robot assembly 2 and the laser cutting assembly 3 to move through the top plate 12. The height sensor 15 can adjust the articulated robot assembly 2 to a suitable position. Then, the displacement sensor 11 detects the distance between the robot assembly 2 and the workpiece, and can accurately adjust the position of the laser cutting assembly 3 to facilitate its continued cutting and processing of the workpiece. Finally, the cooperation of the left and right cylinder pushing mechanism 7 and the front and rear cylinder pushing mechanism 8 can adjust the position of the cutting table 4 and the sliding seat 9, which facilitates precise adjustment of the position between the workpiece and the laser cutting assembly 3, thereby improving the cutting efficiency and quality of the workpiece.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A laser cutting device for an articulated robot with a height calibration device, comprising a guide recess (1), an articulated robot assembly (2), and a laser cutting assembly (3), characterized in that: A cutting table (4) is slidably installed at the bottom of the guide recess (1). A control panel (5) is installed at the front end of the cutting table (4). A sliding seat (9) is slidably installed at the bottom of the cutting table (4). A support frame plate (10) is installed at the upper end of the sliding seat (9). A displacement sensor (11) is installed at one end of the laser cutting assembly (3). A telescopic rod (13) is installed at the upper end of the support frame plate (10). A top plate (12) is installed at the extended end of the telescopic rod (13). Four sets of guide cylinders (14) are installed at the upper end of the support frame plate (10). A height sensor (15) is installed at the front end of the top plate (12). A guide rod (16) is slidably installed inside the four sets of guide cylinders (14). An angle sensor (17) is installed on the rear side of the laser cutting assembly (3).

2. The articulated robot laser cutting equipment with a height calibration device according to claim 1, characterized in that: The upper ends of the four sets of guide rods (16) are all fixed to the lower end of the top plate (12), and the telescopic rod (13) and the height sensor (15) are all connected to the control panel (5) via signal.

3. The articulated robot laser cutting equipment with a height calibration device according to claim 2, characterized in that: The lower end of the articulated robot assembly (2) is fixed to the upper end of the top plate (12), and the rear side of the laser cutting assembly (3) is fixed to the movable end of the articulated robot assembly (2).

4. The articulated robot laser cutting equipment with a height calibration device according to claim 3, characterized in that: The displacement sensor (11) and angle sensor (17) are both electrically connected to the control panel (5), and the joint robot assembly (2) and laser cutting assembly (3) are both signal connected to the control panel (5).

5. A laser cutting device for an articulated robot with a height calibration device according to claim 1, characterized in that: The cutting table (4) is equipped with limit mechanisms (6) at both ends. Pressure sensors (18) are installed on both movable ends of the limit mechanisms (6). The limit mechanisms (6) and the two sets of pressure sensors (18) are connected to the control panel (5) via signals.

6. The articulated robot laser cutting device with a height calibration device according to claim 1, characterized in that: A left and right cylinder pushing mechanism (7) is installed through one end of the guide recess (1), and a left and right movement sensor (19) is installed at one end of the cutting table (4). The extended end of the left and right cylinder pushing mechanism (7) is fixed to one end of the cutting table (4). The left and right cylinder pushing mechanism (7) and the left and right movement sensor (19) are both connected to the control panel (5) via signal.

7. A laser cutting device for an articulated robot with a height calibration device according to claim 1, characterized in that: The guide recess (1) is equipped with a front and rear cylinder push mechanism (8) at its inner bottom end, and the front and rear movement sensor (20) is installed at the front end of the sliding seat (9). The extended end of the front and rear cylinder push mechanism (8) is fixed to the front end of the sliding seat (9). The front and rear cylinder push mechanism (8) and the front and rear movement sensor (20) are both connected to the control panel (5) via signal.

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