Laser cladding additive robot workstation

Abstract

The utility model discloses a laser cladding additive robot workstation, relates to the technical field of industrial robots, and aims to solve the problems that in the prior art, after laser cladding is completed, a welding bead needs to be processed, the surface formed by traditional welding is uneven, the follow-up processing difficulty is increased, and a large amount of time and cost are spent on post processing. A robot system, a laser cladding system, a PLC automatic control system, a powder conveying system, a laser cooling system and a metal plate system are arranged in the workstation cabinet body, the robot system comprises a robot control cabinet, a robot and a positioner, and the robot comprises a six-axis movement body. The position changing machine comprises an overturning shaft movement mechanism and a rotating shaft movement mechanism, an operation panel is arranged on the work station cabinet body, and the laser cladding system comprises a laser head, a laser power supply voltage stabilizer and a laser generator assembly body.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial robots, in particular to a laser cladding additive robot workstation. Background Art

[0002] Laser cladding, also known as laser melting or laser cladding, is a new surface modification technology. It forms a metallurgically bonded filler cladding layer on the surface of the base by adding cladding material to the surface of the base material and using a high-energy-density laser beam to melt it together with a thin layer on the surface of the base material.

[0003] Usually after laser cladding is completed, the weld needs to be processed, such as turning, milling, grinding, etc. The traditional welding forming surface is uneven, which increases the difficulty of subsequent processing and will spend a lot of time and cost on post-processing. Therefore, the market urgently needs to develop a laser cladding additive robot workstation to help people solve existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a laser cladding additive robot workstation to solve the problem raised in the above background technology that after the laser cladding is completed, the weld needs to be processed, the traditional welding forming surface is uneven, which increases the difficulty of subsequent processing and spends a lot of time and cost on post-processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cladding additive robot workstation, including a workstation cabinet, in which a robot system, a laser cladding system, a PLC automatic control system, a powder conveying system, a laser cooling system and a sheet metal system are arranged, the robot system includes a robot control cabinet, a robot and a positioner, the robot includes a six-axis motion body, the positioner includes a flip axis motion mechanism and a rotation axis motion mechanism, and an operation panel is arranged on the workstation cabinet.

[0006] Through the above technical solution, the robot control cabinet is responsible for the operation of the motion trajectory and the issuance of corresponding instructions. The laser power and powder amount required for cladding are controlled by analog communication / field bus communication. The robot and positioner use bus communication to send instructions to the PLC to adjust the corresponding power and powder amount. In addition to simple arcs, straight lines, spirals, I-shaped and other relatively regular trajectories, the operation trajectories of the robot and positioner can also make very complex trajectories with the help of offline programming software, which adapts to products of different specifications. The robot and positioner system is an eight-axis mechanism, mainly composed of a six-axis body and a two-axis positioner motion mechanism. The six-axis body is composed of six joint axes, and the positioner is composed of a flip axis and a rotating axis. The eight axes can realize eight-axis linkage and coordinated operation. Even if the trajectory is not on the same surface, the rotation and flipping of the positioner axis and the rise and fall can be realized without stopping during the cladding process. Trajectories in different directions can be run to avoid uneven welding forming surfaces, increase the difficulty of subsequent processing, reduce time and reduce costs.

[0007] In a preferred example, the utility model can be further configured as follows: the laser cladding system includes a laser head, a laser power supply regulator and a laser generator assembly.

[0008] Through the above technical solution, using the laser cladding process, the powder utilization rate is improved, saving production costs. The process parameters can be automatically adjusted during the cladding process, making the surfacing more beautiful and full, and also providing convenience for subsequent processing, thereby further reducing production costs.

[0009] In a preferred example, the utility model can be further configured as follows: the PLC automatic control system includes a PLC electrical control cabinet.

[0010] Through the above technical solution, using complex operation and control, continuous operation of multiple tracks can be achieved, reducing the crack problem caused by multiple starts and stops.

[0011] In a preferred example, the utility model can be further configured as follows: the powder conveying system includes a laser powder feeder assembly, and the laser powder feeder assembly includes a powder feeding tank, a powder feeding motor, a speed reducer, a powder feeding wheel and a powder detection sensor.

[0012] Through the above technical solution, the powder delivery system is equipped with a powder shortage detection sensor, which can remind the operator in real time whether there is sufficient powder in the powder delivery tank, and will not cause cladding quality problems due to powder shortage during operation.

[0013] In a preferred example, the utility model can be further configured as follows: the laser cooling system includes a laser cooling water tank, and the laser cooling water tank includes a cooling water tank, a water storage tank, a sensor, a water pump and a compressor.

[0014] Through the above technical solution, the cladding head has a water cooling cycle and the cooling system has a compressor for refrigeration, which can ensure that the cladding head can work for a long time without problems such as laser instability.

[0015] In a preferred example, the utility model can be further configured as: the sheet metal system sunshade, the lighting device, the fan and the dust removal device.

[0016] Through the above technical solution, the sheet metal system is divided into a moving area and a static area, separated by special partitions to ensure no human interference, and to ensure that the equipment is stable and the interior is clean.

[0017] In a preferred example, the present invention can be further configured as follows:

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model is responsible for the operation of the motion trajectory and the issuance of corresponding instructions through the robot control cabinet, and controls the laser power and powder amount required for cladding through analog communication / field bus communication. The robot and the positioner use bus communication to send instructions to the PLC to adjust the corresponding power and powder amount. In addition to simple arcs, straight lines, spirals, I-shaped and other relatively regular trajectories, the operation trajectories of the robot and the positioner can also make very complex trajectories with the help of offline programming software, which is suitable for products of different specifications. The robot and positioner system is an eight-axis mechanism, which is mainly composed of a six-axis body and a two-axis positioner motion mechanism. The six-axis body is composed of six joint axes, and the positioner is composed of a flip axis and a rotating axis. The eight axes can realize eight-axis linkage and coordinated operation. Even if the trajectory is not on the same surface, the rotation and flipping of the positioner axis and the rise and fall can be realized without stopping during the cladding process, and the trajectories in different directions can be run to avoid uneven welding forming surfaces, increase the difficulty of subsequent processing, reduce time and reduce costs.

[0020] 2. The utility model uses laser cladding technology, which improves the powder utilization rate and saves production costs. The process parameters can be automatically adjusted during the cladding process, making the cladding more beautiful and full. It also provides convenience for subsequent processing, thereby further reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the robot system of the utility model;

[0022] Figure 2 It is an overall schematic diagram of the laser cladding additive robot workstation of the utility model;

[0023] Figure 3This is a schematic diagram of the internal structure of the front end of the workstation cabinet of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the rear end of the workstation cabinet of the utility model;

[0025] Figure 5 It is an overall schematic diagram of the laser head of the utility model;

[0026] Figure 6 It is an overall schematic diagram of the laser generator assembly of the utility model;

[0027] Figure 7 It is an overall schematic diagram of the PLC electrical control cabinet of the utility model;

[0028] Figure 8 It is an overall schematic diagram of the laser powder feeder assembly of the utility model;

[0029] Fig. 9 It is an overall schematic diagram of the laser cooling water tank of the utility model;

[0030] Fig.10 It is an overall schematic diagram of the laser power supply voltage stabilizer of the utility model;

[0031] Fig.11 It is an overall schematic diagram of the robot control cabinet of the utility model.

[0032] In the figure: 1. Workstation cabinet; 2. Operation panel; 3. Robot system; 4. Laser generator assembly; 5. PLC electrical control cabinet; 6. Laser powder feeder assembly; 7. Laser cooling water tank; 8. Laser power supply regulator; 9. Robot control cabinet; 10. Robot; 11. Laser head; 12. Positioner. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides an embodiment: a laser cladding additive robot workstation, including a workstation cabinet 1, in which a robot system 3, a laser cladding system, a PLC automatic control system, a powder conveying system, a laser cooling system and a sheet metal system are arranged. The robot system 3 includes a robot control cabinet 9, a robot 10 and a positioner 12. The robot 10 includes a six-axis motion body, the positioner 12 includes a flip axis motion mechanism and a rotation axis motion mechanism, and an operation panel 2 is arranged on the workstation cabinet 1.

[0037] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig.10 and Fig.11 The laser cladding system includes a laser head 11, a laser power regulator 8 and a laser generator assembly 4.

[0038] See also Figure 3 and Figure 7 , the PLC automatic control system includes a PLC electrical control cabinet 5.

[0039] See also Figure 8 The powder conveying system includes a laser powder feeder assembly 6, and the laser powder feeder assembly 6 includes a powder feeding tank, a powder feeding motor, a speed reducer, a powder feeding wheel and a powder detection sensor.

[0040] See also Fig. 9 The laser cooling system includes a laser cooling water tank 7, and the laser cooling water tank 7 includes a cooling water tank, a water storage tank, a sensor, a water pump and a compressor.

[0041] See also Figure 2 , Figure 3 and Figure 4 , sheet metal system sunshades, lighting, fans and dust removal.

[0042] Working principle: When in use, the robot control cabinet 9 is responsible for the operation of the motion trajectory and the issuance of corresponding instructions. The laser power and powder amount required for cladding are controlled by analog communication / field bus communication. The robot 10 and the positioner 12 use bus communication to send instructions to the PLC to adjust the corresponding power and powder amount. In addition to simple arcs, straight lines, spirals, I-shaped and other relatively regular trajectories, the operation trajectories of the robot 10 and the positioner 12 can also make very complex trajectories with the help of offline programming software, which is suitable for products of different specifications. The robot 10 and the positioner 12 system is an eight-axis mechanism, the main It is composed of a six-axis body and a two-axis positioner motion mechanism. The six-axis body is composed of six joint axes, and the positioner is composed of a flip axis and a rotating axis. The eight axes can realize eight-axis linkage and coordinated operation. Even if the trajectory is not on the same surface, the rotation and flipping of the positioner axis and the rise and fall can be realized without stopping during the cladding process. The trajectory in different directions can be run to avoid uneven welding forming surfaces, increase the difficulty of subsequent processing, reduce time and reduce costs. The laser cladding system is responsible for weld cladding forming. It consists of a laser head 11 and a laser generator assembly 4. The laser head 11 is compact and small, and there are four The laser generator assembly has a symmetrical powder outlet, with the light outlet in the center, which can ensure the maximum powder utilization rate. The copper nozzle can be disassembled for easy replacement and maintenance. The laser generator assembly has a maximum output power of 6000W, which is suitable for workpieces of different sizes. The PLC automatic control system is responsible for the automatic control of the entire equipment, including the laser and the water tank. In the automatic operation mode, it controls the operation and status monitoring of each component, modifies parameters and reads parameters, etc. The motor drives the powder feeding wheel to rotate after the speed reducer reduces the torque and increases the torque, so that the powder can be evenly output to the laser cladding head end through the powder feeding tube. The powder detection sensor is a dedicated capacitive sensor that can detect the presence of powder and the cladding During the process, the powder plays a real-time monitoring role. The laser cooling water system is a dual-temperature control system responsible for cooling the laser and providing constant temperature control for the laser head, which can make the laser head work more stably and efficiently. The water pump provides power for water circulation, and the water tank is used to store the cooling medium. The compressor cools the water returned from the welding gun and then continues to output it to the laser end and the laser cladding head. The sheet metal system is mainly responsible for shielding the bright light generated by the laser and protecting the operator's eyes. Secondly, a lighting device is installed on the sheet metal to assist the operator in operating the equipment when the light is poor. At the same time, a fan and dust removal device are installed on the top or side panel to keep the equipment ventilated and clean.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A laser cladding additive robot workstation, comprising a workstation cabinet (1), characterized in that: The workstation cabinet (1) is provided with a robot system (3), a laser cladding system, a PLC automatic control system, a powder conveying system, a laser cooling system and a sheet metal system. The robot system (3) comprises a robot control cabinet (9), a robot (10) and a positioner (12). The robot (10) comprises a six-axis motion body. The positioner (12) comprises a flip axis motion mechanism and a rotation axis motion mechanism. The workstation cabinet (1) is provided with an operation panel (2).

2. The laser cladding additive robot workstation according to claim 1, characterized in that: The laser cladding system comprises a laser head (11), a laser power supply regulator (8) and a laser generator assembly (4).

3. The laser cladding additive robot workstation according to claim 1, characterized in that: The PLC automatic control system comprises a PLC electrical control cabinet (5).

4. The laser cladding additive robot workstation according to claim 1, characterized in that: The powder conveying system comprises a laser powder feeder assembly (6), and the laser powder feeder assembly (6) comprises a powder feeding tank, a powder feeding motor, a speed reducer, a powder feeding wheel and a powder detection sensor.

5. The laser cladding additive robot workstation according to claim 1, characterized in that: The laser cooling system comprises a laser cooling water tank (7), and the laser cooling water tank (7) comprises a cooling water tank, a water storage tank, a sensor, a water pump and a compressor.

6. The laser cladding additive robot workstation according to claim 1, characterized in that: The sheet metal system includes a sunshade, a lighting device, a fan and a dust removal device.

Images