Five-axis linkage pipe body brush plating machine and intelligent control system thereof

Abstract

The invention relates to the technical field of surface treatment, in particular to a five-axis linkage pipe body brush plating machine and an intelligent control system thereof, and the five-axis linkage pipe body brush plating machine comprises an equipment body, an intelligent detection system, a movement system, an automatic liquid supply system and an intelligent control system. The equipment body provides supporting and positioning, the intelligent detection system automatically obtains the size of a workpiece and calculates brush plating parameters, the movement system achieves complex track brush plating through five-axis linkage, the automatic liquid supply system monitors the liquid flow and concentration in real time, and the intelligent control system achieves five-axis coordination and dynamic adjustment of technological parameters. The brush plating precision, efficiency and automation level can be remarkably improved, various liquid combinations and treatment of workpieces of different specifications are supported, environmental pollution is reduced through waste liquid recovery, and the method has important industrial application value.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of surface treatment, and specifically relates to a five-axis linkage pipe body brush plating machine and an intelligent control system thereof. BACKGROUND

[0002] In the field of modern industrial manufacturing, pipe surface treatment technology is one of the key processes to improve the performance of workpieces and prolong the service life. Brush plating technology, as an important surface treatment method, is widely used in the fields of aerospace, automobile manufacturing, energy equipment, etc. Traditional brush plating equipment usually adopts manual or semi-automatic operation, relying on manual experience for workpiece positioning, liquid supply and brush plating process control. This way not only is inefficient, but also is difficult to ensure the uniformity and consistency of the brush plating layer. In addition, when dealing with complex shapes or large size pipes, the traditional equipment often has problems such as insufficient positioning accuracy, uneven liquid supply and difficulty in accurately controlling the thickness of the plating layer, resulting in unstable product quality and even scrap phenomenon.

[0003] With the development of industrial automation and intelligentization, five-axis linkage technology has been gradually introduced into the field of precision machining and surface treatment. However, the existing five-axis linkage equipment is mainly used for cutting or welding processes, and its application in the field of brush plating is still in its infancy. The existing brush plating equipment also has obvious shortcomings in the design of the liquid supply system, such as the inability to monitor and adjust the concentration and flow rate of multiple liquids in real time, which leads to uneven ion distribution during the brush plating process, affecting the quality of the plating layer. At the same time, the traditional equipment lacks intelligent detection and control systems, and cannot automatically adjust the process parameters according to the size of the workpiece and the target plating layer thickness, limiting its application in high-precision scenarios.

[0004] In addition, the brush plating process has high requirements for environmental cleanliness, and the existing equipment has a lot of room for improvement in terms of workpiece surface cleaning and liquid recovery. For example, the supply of cleaning water and gas is not precise enough, which can easily cause resource waste or poor cleaning effect; the design of the liquid recovery system is not reasonable, which can lead to environmental pollution or material waste. Therefore, developing an automatic equipment that can realize five-axis linkage control, has intelligent detection and adjustment functions, and can efficiently complete the brush plating of pipes, has become a technical problem to be solved in the current industrial manufacturing field. Based on the above background, the present application aims to provide a five-axis linkage pipe body brush plating machine and an intelligent control system thereof to solve the problems of low efficiency, poor precision and resource waste in the existing technology. SUMMARY

[0005] The present application provides a five-axis linkage pipe body brush plating machine and an intelligent control system thereof to solve the problems of low efficiency, poor precision and resource waste in the existing technology. The brush plating machine integrates intelligent detection systems, motion systems, automatic liquid supply systems and intelligent control systems to achieve efficient and accurate brush plating of pipe workpieces.

[0006] The application provides a five-axis linkage pipe body brush plating machine and an intelligent control system thereof, which comprises five parts of a device body, an intelligent detection system, a motion system, an automatic liquid supply system and an intelligent control system.

[0007] Further, the intelligent detection system calculates the parameters of the parts to be plated by automatically detecting the size of the workpiece and combining the database data. The system supports manual input mode to meet different operation requirements, and is equipped with concentration monitoring equipment and flow meters to monitor the concentration and flow of the five kinds of liquid in real time.

[0008] In particular, the motion system adopts a five-axis linkage design, which respectively realizes the forward movement of the pipe body, the rotation of the pipe body, the forward and backward movement of the brush plating functional unit, the upward and downward movement of the brush plating functional unit and the rotation positioning of the brush plating functional unit, so as to complete the brush plating operation of a complex trajectory.

[0009] Further, the automatic liquid supply system comprises independent plating liquid pools, liquid supply pumps, liquid supply pipelines and electromagnetic valves for the five kinds of liquid, and each kind of liquid is equipped with a flow meter to monitor the flow in real time and feed back the data to the control system. In addition, the water supply system and the air supply system are used to clean the surface of the workpiece.

[0010] The intelligent control system is composed of a PLC control part, a single-chip microcomputer intelligent control part and a brush plating circuit control part, and realizes the functions of five-axis linkage control, liquid flow closed-loop regulation, real-time calculation of plating layer thickness and dynamic adjustment of voltage and current.

[0011] The motion system of the application adopts a five-axis linkage design, and the specific implementation manner is as follows:

[0012] S1 The pipe body forward movement shaft sends out a pulse signal through the position detection system in cooperation with the PLC, controls the step controller to drive the step motor, drives the transportation component to automatically forward the workpiece to the chuck position, and completes accurate positioning.

[0013] S2 The pipe body rotation movement shaft drives the chuck motor through the PLC control frequency converter, and realizes accurate control of the rotation direction and speed of the workpiece.

[0014] S3 The brush plating functional unit forward and backward movement shaft drives the brush plating unit to extend from the device body, drives the brush plating head and the water and air spraying heads for cleaning to enter the inside of the workpiece. The step motor drives the brush plating functional unit to move along a straight line through the lead screw and the slide rail.

[0015] S4 The brush plating function unit up-down shaft automatically adjusts the height of the brush plating head into the workpiece according to the workpiece size. The stepper motor drives the brush plating function unit to move up and down through the four-axis lifting device.

[0016] S5 The brush plating function unit rotating shaft realizes the accurate positioning of the five brush plating heads and the water and air spraying devices in the circumferential direction through the indexing rotating device.

[0017] The intelligent control system of the application is the core part, which mainly realizes the overall control of the brush plating process in the following ways:

[0018] The PLC control part is responsible for the overall coordination of the five-axis linkage. The PLC controls the real-time liquid supply flow of the five kinds of liquid through the calculus PID algorithm, optimizes the brush plating efficiency. At the same time, it receives the data of the flow sensor, forms a closed-loop control, and ensures the stability and accuracy of the liquid supply.

[0019] Further, the single-chip microcomputer intelligent control part calculates the total demand of metal ions such as nickel ions and copper ions according to the workpiece size detection system data and database information based on program algorithm. Through the ion concentration sensor, the liquid concentration information is obtained in real time, and combined with the flow sensor data, the current coating thickness is automatically calculated, and compared with the coating thickness detection device data to ensure the coating quality.

[0020] In particular, the brush plating circuit control part adjusts the voltage, current and current direction output state in real time through the single-chip microcomputer and PLC data to adapt to different materials and process requirements.

[0021] The automatic liquid supply system of the application has the following innovative design:

[0022] The system sets up independent plating liquid pools for five kinds of liquid, and each kind of liquid is equipped with an independent liquid supply pump, liquid supply pipeline and electromagnetic valve to avoid cross contamination. Each liquid path is provided with a flow meter to monitor the flow in real time and transmit the data to the control system to ensure the stability of the liquid supply.

[0023] Further, the water supply system and the air supply system are used to clean the workpiece surface before and after each step to improve the brush plating quality. The water supply system delivers clean water to the water spraying pipe through the water pump, and the air supply system delivers compressed air to the air spraying pipe through the air blower, thereby realizing the cleaning and drying of the workpiece surface. The technical scheme of the application solves the problems of precision, efficiency and automation of traditional brush plating equipment through the five-axis linkage design and intelligent control system. The system can automatically detect the workpiece size, calculate the parameters of the to-be-brushed plating part, monitor the liquid concentration and flow in real time, and reduce manual intervention. Through closed-loop control and real-time adjustment, the coating thickness is uniform and meets the design requirements.

[0024] Further, the present application supports a variety of liquid combinations and different specifications of workpieces for brush plating processing, and can be widely applied in the fields of aerospace, automobile manufacturing, etc. The liquid recovery system effectively reduces waste liquid discharge, meeting the green environmental protection requirements. In summary, the present application provides a five-axis linkage pipe body brush plating machine and an intelligent control system thereof, which are efficient, intelligent and environmentally friendly, significantly improve the automation level and brush plating quality of the brush plating equipment, and have important industrial application value. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 is a schematic diagram of the five-axis linkage control of the motion system of the present application;

[0027] Figure 3 is a schematic diagram of the structure of the automatic liquid supply system of the present application;

[0028] Figure 4 is a schematic diagram of the intelligent control system module of the present application.

[0029] The reference signs are as follows:

[0030] 1, device body (fixed); 2, slide; 3, electric control cabinet; 4, rotating chuck; 5, lifting adjustment light shaft; 6, lifting adjustment lead screw; 7, brush plating head (brush plating ratio); 8, forward and backward mechanism; 9, ascending and descending mechanism; 10, brush plating station indexing rotation mechanism; 11, liquid recovery; 12, clean water storage; 13, recovered water storage; 14, five kinds of liquid storage; 15, center centering mechanism; 16, support trolley; 17, trolley track; 18, positioning mechanism; 19, water spray pipe; 20, air jet pipe DETAILED DESCRIPTION

[0031] The present application provides a five-axis linkage pipe body brush plating machine and an intelligent control system thereof, in combination with the accompanying drawings Figure 1 to the accompanying drawings Figure 4 The specific embodiments of the present application are described in detail. The system realizes efficient and accurate brush plating processing of pipe body workpieces through the cooperative work of the device body, intelligent detection system, motion system, automatic liquid supply system and intelligent control system.

[0032] As Figure 1As shown, the device body 1 is the core fixed part of the entire device, mainly responsible for support and positioning functions. The device body 1 is provided with a slide 2 for guiding the movement of the transport component, while being equipped with a lifting adjustment optical axis 5 and a lifting adjustment lead screw 6 to ensure that the brush plating head 7 and other functional units maintain high-precision positioning during movement. One end of the device body 1 is installed with a rotating chuck 4, which is driven by a chuck motor to provide rotating power for the pipe body to be brushed. The design of the rotating chuck 4 not only ensures the stable clamping of the workpiece, but also further enhances the coaxiality of the workpiece through the center centering mechanism 15, avoiding the decline of brush plating quality due to eccentricity. In addition, a trolley track 16 and a support trolley 3 are provided below the device body 1 for carrying the entire device and facilitating movement.

[0033] The implementation process of the intelligent detection system is as follows:

[0034] Before the workpiece enters the brush plating process, the system first obtains the workpiece size through the automatic detection device and transmits the data to the single-chip intelligent control part for analysis. The single-chip microcomputer calculates the specific size and position of the part to be brushed according to the standard parameters stored in the database combined with the real-time data provided by the workpiece size detection system. If the operator selects the manual mode, the size information of the position to be brushed can be input through the electric control cabinet 1. The system supports multiple liquid combination brush plating processes and can dynamically adjust the liquid supply scheme according to the required amount of nickel ions, copper ions and other metal ions. Concentration monitoring equipment and flow meters are installed on the liquid supply pipelines of the five liquids to monitor the changes in liquid concentration and flow in real time and feed the data back to the control system to form a closed-loop regulation mechanism.

[0035] The five-axis linkage design of the motion system is one of the core technologies of the present application, and the specific operation principle is as follows:

[0036] S1 The pipe body forward movement axis sends out pulse signals through the position detection system in cooperation with the PLC to control the step controller to drive the step motor. The step motor drives the transport component to move along the slide 2, automatically transporting the workpiece from the support trolley 3 to the position of the rotating chuck 4 and completing precise positioning.

[0037] S2 The pipe body rotation movement axis is driven by the PLC to control the frequency converter to drive the chuck motor, thereby realizing precise control of the rotation direction and speed of the workpiece. The rotation speed can be dynamically adjusted according to the requirements of the brush plating process to ensure that the brush plating layer uniformly covers the surface of the workpiece.

[0038] S3 The brush plating functional unit forward and backward axis is driven by the step motor to drive the lead screw and slide rail, bringing the brush plating head 7 and the water and air jet heads for cleaning into the workpiece. The design of this axis allows the brush plating unit to flexibly extend or retract from the device body 1, adapting to the needs of workpieces of different lengths.

[0039] S4 The ascending and descending shaft of the brush plating functional unit automatically adjusts the height of the brush plating head 7 into the workpiece according to the size of the workpiece. The stepping motor drives the brush plating functional unit to move up and down along the ascending and descending adjusting light axis 5 through the four-axis lifting device, ensuring that the brush plating head 7 maintains the optimal distance from the surface of the workpiece.

[0040] S5 The rotating shaft of the brush plating functional unit realizes the precise positioning of the five brush plating heads 7 and the water and air spraying devices in the circumferential direction through the indexing rotating device. The design of this shaft enables the brush plating head 7 to perform multi-angle brush plating processing at different positions on the surface of the workpiece, meeting the complex trajectory brush plating requirements.

[0041] The automatic liquid supply system, as shown in Figure 3 , includes five kinds of liquid storage 14, liquid supply pumps, liquid supply pipelines, and electromagnetic valves. Each kind of liquid is equipped with an independent plating liquid pool to avoid cross-contamination. The liquid supply pump delivers the liquid to the brush plating head 7 through the liquid supply pipeline, and the electromagnetic valve opens or closes the liquid supply according to the instructions of the control system. A flow meter is installed on each liquid pipeline to monitor the liquid flow in real time and transmit the data to the control system, ensuring the stability of the liquid supply. The water supply system and the air supply system deliver clean water and compressed air to the water spraying pipe 18 and the air spraying pipe 19 through the water pump and the air blower, respectively. Before and after each brush plating step, the water spraying pipe 18 and the air spraying pipe 19 thoroughly clean and dry the surface of the workpiece, improving the quality of brush plating. The liquid recovery system 11 is used to collect the waste liquid generated during the brush plating process, reducing environmental pollution.

[0042] The intelligent control system, as shown in Figure 4 , is composed of a PLC control part, a single-chip microcomputer intelligent control part, and a brush plating circuit control part. The PLC control part is responsible for the overall coordination of the five-axis linkage and controls the real-time liquid supply flow of the five kinds of liquid through the calculus PID algorithm, optimizing the brush plating efficiency. The flow sensor monitors the liquid flow in real time and feeds back the data to the PLC, forming a closed-loop control to ensure the stability and accuracy of the liquid supply. The single-chip microcomputer intelligent control part calculates the total demand for metal ions such as nickel ions and copper ions based on program algorithms, workpiece size detection system data, and database information. The ion concentration sensor obtains liquid concentration information in real time and automatically calculates the current plating layer thickness in combination with the flow sensor data, and compares it with the data of the plating layer thickness detection device to ensure that the plating layer quality meets the design requirements. The brush plating circuit control part adjusts the voltage, current, and current direction output state in real time through the single-chip microcomputer and PLC data to adapt to different materials and process requirements. For example, when brushing a nickel layer, the system dynamically adjusts the current density and voltage value according to the workpiece material and plating layer thickness requirements, thereby obtaining a high-quality brush plating layer.

[0043] The application has remarkable advantages in practical application. For example, in the field of aerospace, an enterprise needs to carry out copper-nickel composite brush plating treatment on titanium alloy pipe body. The operator places the workpiece on the support trolley 3 and fixes it through the positioning mechanism 17. The intelligent detection system automatically detects the workpiece size and calculates the parameters of the to-be-plated part, and then starts the plating program. The five-axis linkage design of the motion system enables the plating head 7 to accurately position the workpiece surface and perform plating operation according to the preset trajectory. The automatic liquid supply system dynamically adjusts the supply ratio of the five kinds of liquid according to the metal ion demand calculated by the single-chip microcomputer, ensures that the plating layer thickness is uniform and meets the design requirements. After the plating is completed, the liquid recovery 11 system collects and processes the waste liquid, reduces waste liquid discharge, and meets the green environmental protection requirements.

[0044] In summary, the application realizes efficient and accurate brush plating treatment of pipe workpieces through the cooperative work of the device body 1, the intelligent detection system, the motion system, the automatic liquid supply system and the intelligent control system. The system can automatically detect the workpiece size, calculate the parameters of the to-be-plated part, monitor the liquid concentration and flow in real time, and reduce manual intervention. Through closed-loop control and real-time adjustment, the plating layer thickness is uniform and meets the design requirements. The application supports brush plating treatment of multiple liquid combinations and different specifications of workpieces, and can be widely applied in the fields of aerospace, automobile manufacturing, etc. The liquid recovery 11 system effectively reduces waste liquid discharge, meets the green environmental protection requirements, and has important industrial application value.

Claims

1. A five-axis linkage pipe body brush plating machine, comprising a device body (1), an intelligent detection system, a motion system, an automatic liquid supply system and an intelligent control system, characterized in that: The device body (1) is provided with a slide (2), a lifting adjustment optical axis (5), a lifting adjustment screw (6), a rotating chuck (4), a central righting mechanism (15), a support trolley (16) and a trolley track (17). The movement system includes a pipe body forward movement shaft, a pipe body rotating movement shaft, a forward and backward shaft of a brush plating function unit, an ascending and descending shaft and a rotating shaft. The automatic liquid supply system includes five liquid storage (14), a liquid supply pump, a liquid supply pipeline, an electromagnetic valve and a flow meter. The intelligent control system is composed of a PLC control part, a single-chip microcomputer intelligent control part and a brush plating circuit control part.

2. The five-axis tube brush plating machine of claim 1, wherein: The device body (1) further includes a positioning mechanism (18) for fixing the workpiece on the support trolley (16) and guiding the movement of the transport component through the slide (2).

3. The five-axis tube brush plating machine of claim 2, wherein: The positioning mechanism (18) is further provided with an adjustable clamping device to adapt to workpieces of different diameters.

4. The five-axis tube brush plater machine of claim 1, wherein: Each liquid pipeline of the automatic liquid supply system is equipped with a concentration monitoring device for real-time detection of the concentration of metal ions in the liquid.

5. The five-axis tube brush plater machine of claim 4, wherein: The concentration monitoring device uses a conductivity sensor or an optical sensor, and the flow meter uses a turbine flow meter or an ultrasonic flow meter.

6. The five-axis tube brush plater machine of claim 1, wherein: The liquid recovery system includes a waste liquid collection tank, a filtering device and a discharge pipeline. The waste liquid can be recycled or safely discharged after being separated from metal ions by the filtering device.

7. The five-axis tube brush plater machine of claim 1, wherein: The intelligent control system controls the real-time liquid supply flow of the five liquids through the calculus PID algorithm and forms a closed-loop regulation mechanism in combination with the flow sensor.

Images