Plasma robot cutter surfacing equipment

Abstract

The utility model discloses plasma robot cutter surfacing equipment, relates to the technical field of cutter surfacing equipment, and aims to solve the problems that in the prior art, the traditional cutter surfacing work adopts oxyacetylene spray welding or welding rod welding, the safety is not high enough, the used gas is inflammable gas, potential safety hazards exist, the environment is influenced by greenhouse gas generated by combustion, and the working efficiency is low. The used powder is small in particle size and low in utilization rate, the production cost is increased, and the body health of operators is affected. The robot system comprises a welding robot, the surfacing welding system comprises a plasma welding gun and a plasma welding machine, the output end of a mechanical arm of the welding robot is connected with the plasma welding gun, the plasma welding gun is compact and small in structure, a copper nozzle is arranged at a port of the plasma welding gun, four symmetrical powder outlets are formed in the copper nozzle, and the plasma welding machine is connected with the plasma welding gun. An arc outlet is formed in the center of the copper nozzle, and the robot system adopts an eight-shaft mechanism and comprises two external shaft running mechanisms.

Description

Technical Field

[0001] The utility model relates to the technical field of tool surfacing equipment, in particular to plasma robot tool surfacing equipment. Background Art

[0002] Traditional tool surfacing work uses manual oxyacetylene spray welding / electrode surfacing, simple fixtures, single-point communication, traditional flame heating, and welding material output structure;

[0003] This results in insufficient safety. The gas used is flammable, which poses a safety hazard. The greenhouse gases produced by combustion affect the environment. The powder used has a small particle size and a low utilization rate, which increases production costs and affects the health of operators. Therefore, the market urgently needs to develop plasma robot tool cladding equipment to help people solve existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a plasma robot tool cladding equipment to solve the problems raised in the above background technology that the traditional tool cladding work adopts oxyacetylene spray welding or welding rods for welding, which is not safe enough, the gas used is flammable gas, there are safety hazards, the greenhouse gas generated by combustion affects the environment, the powder used has a small particle size and a low utilization rate, which increases the production cost and affects the health of the operator.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: plasma robot tool surfacing equipment, including a robot system, a surfacing system, a PLC automatic control system, a dual powder conveying system, a cooling system, a tooling fixture system and a heating system, characterized in that: the robot system includes a welding robot, the surfacing system includes a plasma welding gun and a plasma welding machine, the output end of the mechanical arm of the welding robot is connected to the plasma welding gun, the plasma welding gun has a compact structure, the port of the plasma welding gun has a copper nozzle, the copper nozzle is provided with four symmetrical powder outlets, and the center of the copper nozzle is provided with an arc outlet.

[0006] Through the above technical solution, using plasma surfacing technology, the powder utilization rate is improved, the production cost is saved, and the process parameters can be automatically adjusted during the surfacing process, making the surfacing shape more beautiful and full.

[0007] In a preferred example, the present invention can be further configured as follows: the robot system adopts an eight-axis mechanism, and the robot system includes two external axis operating mechanisms.

[0008] Through the above technical solution, using complex operation and control, continuous operation of multiple trajectories can be achieved, reducing the crack problem caused by multiple arcing and stopping.

[0009] In a preferred example, the utility model can be further configured as follows: the PLC automatic control system includes a PLC control box, a control circuit is arranged in the PLC control box, and a touch screen is arranged on the PLC control box.

[0010] Through the above technical solution, the operating status of the entire equipment can be displayed through the PLC, and the operating status of the equipment can be intuitively seen.

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

[0012] Through the above technical solution, the dual 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. There will be no quality problems in surfacing due to powder shortage during operation, and automatic switching can be achieved for different welding materials.

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

[0014] Through the above technical solution, a water-cooled circulating groove flow is arranged in the welding gun, and a cooling system is provided for the welding gun. The cooling system has a compressor for refrigeration, which can ensure that the welding gun can work for a long time without problems such as arc instability.

[0015] In a preferred example, the utility model can be further configured as follows: the tooling system includes a welding table, a code mold clamp for fixing a tool is provided on the welding table, a heating system is provided on the welding table, the heating system includes a heater, a heating coil and a cooling water tank, and a sliding mechanism is provided under the cooling water tank.

[0016] Through the above technical solution, after using the fixture, the cracks and deformation of the blade are greatly reduced. The heating system is designed through an integrated design, with the water tank and heater designed on a movable and upgradeable trolley to suit workpieces of different sizes.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The use of plasma surfacing technology improves the powder utilization rate and saves production costs. The process parameters can be automatically adjusted during the surfacing process, making the surfacing more beautiful and full.

[0019] 2. The use of complex operation and control can achieve continuous operation of multiple tracks, reducing the crack problem caused by multiple arcing and arcing.

[0020] 3. The dual powder delivery system is equipped with a powder shortage detection sensor, which can remind the operator in real time whether there is enough powder in the powder delivery tank, so that there will be no quality problems of surfacing due to powder shortage during operation. Automatic switching can be achieved for different welding materials.

[0021] 4. The welding gun has a water cooling cycle, and the cooling system has a compressor for refrigeration, which can ensure that the welding gun can work for a long time without problems such as arc instability.

[0022] 5. The operating status of the entire equipment can be displayed through PLC, and the operating status of the equipment can be intuitively seen.

[0023] 6. After using the fixture, the blade cracks and deformation are greatly reduced.

[0024] 7. The heating system is designed with an integrated design, where the water tank and heater are placed on a movable and upgradeable trolley, suitable for workpieces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the plasma robot tool surfacing equipment of the utility model;

[0026] Figure 2 It is an overall schematic diagram of the welding table of the utility model;

[0027] Figure 3 It is a front view of the plasma welding gun of the utility model;

[0028] Figure 4 It is an overall schematic diagram of the cooling system of the utility model;

[0029] Figure 5 It is an overall schematic diagram of the dual powder conveying system of the utility model.

[0030] In the figure: 1. Welding robot; 2. Welding table; 3. Cooling system; 4. PLC control box; 5. Plasma welding gun; 6. Dual powder conveying system; 7. Heating system. DETAILED DESCRIPTION

[0031] 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.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] 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.

[0034] See also Figure 1 and Figure 3 The utility model provides an embodiment: plasma robot tool surfacing equipment, including a robot system, a surfacing system, a PLC automatic control system, a dual powder conveying system 6, a cooling system 3, a fixture system and a heating system 7. The robot system includes a welding robot 1, and the surfacing system includes a plasma welding gun 5 and a plasma welding machine. The output end of the mechanical arm of the welding robot 1 is connected to the plasma welding gun 5. The surfacing system is responsible for the surfacing forming of the weld bead. It consists of a plasma welding gun 5 and a plasma welding machine. The plasma welding gun 5 has a compact structure. The port of the plasma welding gun 5 has a copper nozzle, and four symmetrical powder outlets are arranged on the copper nozzle. The center of the copper nozzle is provided with an arc outlet, which can ensure the maximum powder utilization rate. The copper nozzle can be disassembled for easy replacement and maintenance. The plasma welding machine has a maximum output current of 400A, which is suitable for workpieces of different sizes. For round hole parts in the product, a set of inner hole plasma surfacing guns is added.

[0035] See also Figure 1 The robot system adopts an eight-axis mechanism. The robot system includes two external axis operating mechanisms. The robot system is responsible for the operation of the welding gun cladding trajectory and the issuance of the corresponding arc starting command. The current and powder size required for cladding are controlled through analog communication / field bus communication. Its operation trajectory includes arc, straight line, spiral, I-shaped trajectory, etc. It is an eight-axis mechanism consisting of a six-axis body and two external axes. The eight axes can achieve coordinated operation. Even if the trajectory is not on the same plane, the rotation and flipping of the positioner axis can be realized without stopping the arc during the cladding process, and the trajectory in different directions can be run.

[0036] See also Figure 1The PLC automatic control system includes a PLC control box 4, a control circuit is arranged in the PLC control box 4, a touch screen is arranged on the PLC control box 4, and the PLC automatic control system is responsible for the automatic control of the entire equipment, including manual start-up of gas, arc and water tank, and in the automatic operation mode, controls the operation and status monitoring of each component, modifies parameters and reads parameters, etc.

[0037] See also Figure 1 and Figure 5 The dual powder conveying system consists of a powder feeding tank, a powder feeding motor, a reducer and a powder detection sensor. The dual powder conveying system is responsible for outputting powder to the welding gun, controlling the powder output and matching the welding gun running speed to form an ideal cladding layer. The motor drives the powder feeding wheel to rotate after deceleration and torque increase through the reducer, so that the powder can be evenly output to the welding gun end through the powder feeding pipe. The powder detection sensor is a special capacitive sensor that can detect the presence of powder and monitor the powder in real time during the cladding process. Two sets of powder feeding mechanisms are set in this solution. Different powders can be added to the powder tank. The automatic switching of the powder tank can be realized through the robot program instructions, which can realize the processing and cladding of different products in one program.

[0038] See also Figure 1 and Figure 4 The cooling system 3 includes a cooling water tank, a water storage tank, a water pump and a compressor. The cooling system 3 is responsible for cooling the plasma welding gun 5, which can make the plasma welding gun 5 work more stably and efficiently. The water pump provides power for water circulation, the water storage tank is used to store cooling medium, and the compressor cools the water returned from the plasma welding gun 5 and then continues to output it to the welding gun end.

[0039] See also Figure 1 and Figure 2 The tooling and fixture system includes a welding table 2, on which a code clamp for fixing a tool is provided. The welding table 2 is provided with a heating system 7, which includes a heater, a heating coil and a cooling water tank. A sliding mechanism is provided under the cooling water tank. The tooling and fixture system is responsible for positioning the workpiece and preventing and reducing large deformation of the blade due to heat. At the same time, it is equipped with a coordinated heating system 7, which can heat while surfacing, thereby reducing the risk of cracks. The heating system 7 is mainly responsible for the preheating and heat preservation required by the welding process.

[0040] Working principle: When in use, the blade is fixed on the welding table 2, the welding robot 1 picks up the plasma welding gun 5 to weld the blade, and the plasma welding gun 5 is powered by the plasma welding machine. At the same time, the dual powder conveying system 6 is used to provide powder for the plasma welding gun 5, the cooling system 3 is used to cool the plasma welding gun 5, and the heating system 7 provides heating for the blade to ensure that the welding temperature is within a stable range. The cooling system 3 and the dual powder conveying system 6 will be connected to the plasma welding gun 5 through a water pipe and an air pipe respectively.

[0041] 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 plasma robot tool cladding equipment, comprising a robot system, a cladding system, a PLC automatic control system, a double powder conveying system (6), a cooling system (3), a fixture system and a heating system (7), characterized in that: The robot system comprises a welding robot (1), the cladding system comprises a plasma welding gun (5) and a plasma welding machine, the robot arm output end of the welding robot (1) is connected to the plasma welding gun (5), the plasma welding gun (5) has a compact structure, the port of the plasma welding gun (5) has a copper nozzle, the copper nozzle is provided with four symmetrical powder outlets, and the center of the copper nozzle is provided with an arc outlet.

2. The plasma robot tool surfacing equipment according to claim 1, characterized in that: The robot system adopts an eight-axis mechanism, and the robot system includes two external axis operating mechanisms.

3. The plasma robot tool surfacing equipment according to claim 1, characterized in that: The PLC automatic control system comprises a PLC control box (4), a control circuit is arranged in the PLC control box (4), and a touch screen is arranged on the PLC control box (4).

4. The plasma robot tool surfacing equipment according to claim 1, characterized in that: The dual powder conveying system comprises a powder feeding tank, a powder feeding motor, a speed reducer and a powder detection sensor.

5. The plasma robot tool surfacing equipment according to claim 1, characterized in that: The cooling system (3) comprises a cooling water tank, a water storage tank, a water pump and a compressor.

6. The plasma robot tool surfacing equipment according to claim 1, characterized in that: The tooling fixture system comprises a welding table (2), on which a code clamp for fixing a tool is arranged, and on which a heating system (7) is arranged, the heating system (7) comprises a heater, a heating coil and a cooling water tank, and a sliding mechanism is arranged below the cooling water tank.

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