Intelligent monitoring system for lathe state of railway numerical control vehicle

Abstract

The utility model discloses a railway numerical control vehicle lathe state intelligent monitoring system, which comprises an industrial personal computer, a switch, a pressure signal acquisition module, a temperature signal acquisition module, a current signal acquisition module and a vibration signal acquisition module, the pressure signal acquisition module, the temperature signal acquisition module and the current signal acquisition module are electrically connected with the switch, and the vibration signal acquisition module is electrically connected with the industrial personal computer. Various parameter sensors are adopted, vibration, current, pressure and temperature parameters of the numerical control wheel lathe are monitored, various parameters are integrated for intelligent judgment of faults of the numerical control wheel lathe, the workload of equipment maintenance personnel is reduced, the labor cost and the time cost are reduced, the maintenance quality and efficiency of the numerical control wheel lathe are improved, and the maintenance cost is reduced. Scientific basis is provided for reasonably formulating maintenance and repair periods, and the working state of the lathe is ensured, so that the normal operation of the vehicle is ensured, and the driving safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway numerical control vehicle lathe monitoring, in particular to an intelligent monitoring system for the state of railway numerical control vehicle lathes. Background Art

[0002] CNC wheel lathes are special machine tools used for processing and repairing railway locomotive wheels, and are widely used in the maintenance workshops of various railway vehicle depots. Due to the long-term use of CNC lathes, the vibration and impact during processing will cause wear and failure of key parts of the lathe, directly affecting the quality of wheel processing, thus endangering the safe operation of trains.

[0003] At present, most of the key states and maintenance parameters of CNC wheel lathes are measured manually. On the one hand, manual measurement requires a lot of manpower and material resources, and it is impossible to grasp the working conditions of the lathe in real time. In particular, there is no effective means to detect the working conditions of the spindle and tool holder. On the other hand, the maintenance quality and efficiency depend on the quality and experience of the personnel, which cannot guarantee the maintenance quality and efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent monitoring system for the status of railway CNC vehicle lathes in response to the above-mentioned problems, which can intelligently monitor the current, pressure, temperature and vibration status of key parts during daily maintenance of CNC wheel lathes, improve the efficiency of manual measurement, and simultaneously comprehensively analyze multiple parameters to pre-judge the faults of CNC wheel lathes, ensure that the CNC lathes are in good and reliable working condition, ensure that the processed wheelset dimensions are correct and the wheel surface status meets the requirements for safe operation of trains, thereby achieving the purpose of improving the quality and efficiency of daily maintenance of CNC lathes, making daily maintenance methods more digital and intelligent, and being able to scientifically and rationally guide status repairs and reduce maintenance costs.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] According to one aspect of the utility model, there is provided a railway CNC vehicle lathe state intelligent monitoring system, including an industrial computer, a switch, a pressure signal acquisition module, a temperature signal acquisition module, a current signal acquisition module and a vibration signal acquisition module;

[0007] The switch is electrically connected to the industrial control machine, the pressure signal acquisition module, the temperature signal acquisition module and the current signal acquisition module are electrically connected to the switch respectively, and the vibration signal acquisition module is electrically connected to the industrial control machine;

[0008] The pressure signal acquisition module is used to collect data on the oil pressure of the pipelines on both sides of the lathe; the temperature signal acquisition module is used to collect data on the temperature of the control cabinet and the motor; the current signal acquisition module is used to collect data on the three-phase current of the control cabinet; the vibration signal acquisition module is used to collect data on the acceleration of the spindle and tool holder in three directions of the lathe.

[0009] Preferably, the pressure signal acquisition module includes two groups, each group of the pressure acquisition module includes a first Adam module and at least one pressure sensor, each of the pressure sensors is electrically connected to the first Adam module, and the first Adam module is electrically connected to the switch.

[0010] Preferably, the temperature signal acquisition module includes a second Adam module, an infrared sensor and at least one temperature sensor, the infrared sensor is electrically connected to the second Adam module, each of the temperature sensors is electrically connected to the second Adam module, and the second Adam module is electrically connected to the switch.

[0011] Preferably, the current signal acquisition module includes a third Adam module and at least one current sensor, each of the current sensors is electrically connected to the third Adam module, and the third Adam module is electrically connected to the switch.

[0012] Preferably, the vibration signal acquisition module includes a vibration collector, a spindle vibration sensor assembly and a tool holder vibration sensor assembly, the vibration collector is connected to the industrial computer, and the spindle vibration sensor assembly and the tool holder vibration sensor assembly are electrically connected to the vibration collector respectively.

[0013] Preferably, the spindle vibration sensor assembly comprises a left spindle vibration sensor and a right spindle vibration sensor, and the left spindle vibration sensor and the right spindle vibration sensor are electrically connected to the vibration collector, respectively.

[0014] Preferably, the tool holder vibration sensor assembly comprises a left tool holder vibration sensor and a right tool holder vibration sensor, and the left tool holder vibration sensor and the right tool holder vibration sensor are electrically connected to the vibration collector respectively.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The utility model adopts a variety of parameter sensors to realize the monitoring of vibration, current, pressure and temperature parameters of CNC wheel lathe, and integrates various parameters for intelligent judgment of CNC wheel lathe faults, which reduces the workload of equipment maintenance personnel, reduces labor costs and time costs, improves the maintenance quality and efficiency of CNC wheel lathe, provides a scientific basis for the reasonable formulation of maintenance and repair cycles, ensures the working state of the lathe, thereby ensuring the normal operation of the vehicle and improving driving safety.

[0017] 2. The utility model adopts a three-axis acceleration sensor to measure the multi-directional vibration of all spindles and tool holders of the CNC wheel lathe, thereby realizing real-time monitoring of the working condition of the CNC wheel lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0020] See also Figure 1 The utility model provides a railway CNC vehicle lathe state intelligent monitoring system, the technical scheme is as follows:

[0021] A railway CNC vehicle lathe state intelligent monitoring system, the system includes an industrial computer, a switch, a pressure signal acquisition module, a temperature signal acquisition module, a current signal acquisition module and a vibration signal acquisition module. The pressure signal acquisition module, the temperature signal acquisition module and the current signal acquisition module are respectively connected to the industrial computer through the switch, the pressure signal acquisition module, the temperature signal acquisition module and the current signal acquisition module are respectively electrically connected to the switch, and the vibration signal acquisition module is electrically connected to the industrial computer. The pressure signal acquisition module is used to collect data on the oil pressure of the pipelines on both sides of the lathe, the temperature signal acquisition module is used to collect data on the temperature of the control cabinet and the motor, the current signal acquisition module is used to collect data on the three-phase current of the control cabinet, and the vibration signal acquisition module is used to collect data on the acceleration of the main shaft and the tool holder in three directions of the lathe. The industrial computer is used to receive the data transmitted by each module, so as to obtain the vibration, current, pressure and temperature parameters of the lathe, and realize the monitoring of the vibration, current, pressure and temperature parameters of the CNC wheel lathe.

[0022] Specifically, the pressure signal acquisition module includes two groups, namely the left pipeline pressure signal acquisition module and the right pipeline pressure signal acquisition module. Each group of pressure acquisition modules includes a first Adam module and at least one pressure sensor. In this embodiment, a first Adam module and three pressure sensors are used as a group, each pressure sensor is electrically connected to the first Adam module, and the first Adam module is electrically connected to the switch. The two groups of pressure sensors respectively collect data on the oil pressure of the three pipelines of claw retraction, claw loosening, and ejector extension on both sides of the lathe. The collected data is transmitted from the first Adam module to the industrial computer via the local area network. And the system software in the industrial computer can display in real time whether the pipeline oil pressure value is within the normal range, which is convenient for management personnel to observe the monitoring data more intuitively and make data abnormality alarms.

[0023] The temperature signal acquisition module includes a second Adam module, an infrared sensor and at least one temperature sensor. In this embodiment, a second Adam module, four temperature sensors and an infrared temperature sensor are used for temperature monitoring. The infrared sensor is electrically connected to the second Adam module, each temperature sensor is electrically connected to the second Adam module, and the second Adam module is electrically connected to the switch. The four temperature sensors are used to monitor the temperature of the control cabinet, and the infrared sensor is used to monitor the temperature of the motor. The monitored data is transmitted from the second Adam module to the industrial computer through the local area network, and the system software in the industrial computer can display in real time whether the temperature values ​​of the control cabinet and the motor are within the normal range, which is convenient for management personnel to observe the monitoring data more intuitively and make data abnormality alarms.

[0024] The current signal acquisition module includes a third Adam module and at least one current sensor. In this embodiment, a third Adam module and a three-phase current sensor are used to monitor the three-phase total current of the control cabinet, the three-phase current sensor is connected to the third Adam module, and the third Adam module is electrically connected to the switch. The collected data is transmitted to the industrial computer by the third Adam module through the local area network, and the system software in the industrial computer can display in real time whether the current value of the three-phase total current of the control cabinet is within the normal range, which is convenient for management personnel to observe the monitoring data more intuitively and make data abnormality alarms.

[0025] The vibration signal acquisition module includes a vibration collector, a spindle vibration sensor assembly and a tool holder vibration sensor assembly, and the vibration collector is connected to the industrial computer. The left spindle vibration sensor assembly includes a left spindle vibration sensor and a right spindle vibration sensor, and the left spindle vibration sensor and the right spindle vibration sensor are electrically connected to the vibration collector respectively. The tool holder vibration sensor assembly includes a left tool holder vibration sensor and a right tool holder vibration sensor, and the left tool holder vibration sensor and the right tool holder vibration sensor are electrically connected to the vibration collector respectively. In this embodiment, the vibration collector is a 16-channel vibration collector, and the vibration sensor is a three-way acceleration sensor. The four vibration sensors respectively collect data on the acceleration in three directions of the left spindle, left tool holder, right tool holder and right spindle of the lathe. The collected data is transmitted from the vibration collector to the industrial computer through the local area network, and the acceleration value of the acceleration sensor can be displayed in real time through the system software in the industrial computer to see whether it is within the normal range, which is convenient for management personnel to observe the monitoring data more intuitively, make data abnormality alarms, and realize fault warning level judgment.

[0026] Furthermore, the wheel set processing and repair of a vehicle is to use the cutter head of a wheel lathe to cut the wheel rim, wheel disc, etc. at a certain feed rate, and a large amount of high-temperature iron filings will be generated in this process. In order to protect the sensor signal transmission (extension) line from damage caused by high temperature. In this embodiment, a three-layer protective tube of yellow wax tube, plastic-coated metal hose, and snap-on silicone insulation sleeve is used to wrap the sensor signal transmission (extension) line.

[0027] When in use, the industrial computer connects the vibration collector and all Adam modules through the local area network, and then sends the configuration information to the vibration collector. It then receives and displays the acceleration, temperature, current, and pressure data sent by the vibration collector and all Adam modules, and then performs subsequent data processing and updates the warning status.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent monitoring system for the status of a railway CNC vehicle lathe, characterized in that: It includes an industrial computer, a switch, a pressure signal acquisition module, a temperature signal acquisition module, a current signal acquisition module and a vibration signal acquisition module; The switch is electrically connected to the industrial control machine, the pressure signal acquisition module, the temperature signal acquisition module and the current signal acquisition module are electrically connected to the switch respectively, and the vibration signal acquisition module is electrically connected to the industrial control machine; The pressure signal acquisition module is used to collect data on the oil pressure of the pipelines on both sides of the lathe; the temperature signal acquisition module is used to collect data on the temperature of the control cabinet and the motor; the current signal acquisition module is used to collect data on the three-phase current of the control cabinet; the vibration signal acquisition module is used to collect data on the acceleration of the spindle and tool holder in three directions of the lathe.

2. The intelligent monitoring system for railway CNC vehicle lathe status according to claim 1 is characterized in that: The pressure signal acquisition module includes two groups, each group of the pressure signal acquisition module includes a first Adam module and at least one pressure sensor, each of the pressure sensors is electrically connected to the first Adam module, and the first Adam module is electrically connected to the switch.

3. The intelligent monitoring system for railway CNC vehicle lathe status according to claim 1 is characterized by: The temperature signal acquisition module includes a second Adam module, an infrared sensor and at least one temperature sensor, the infrared sensor is electrically connected to the second Adam module, each of the temperature sensors is electrically connected to the second Adam module, and the second Adam module is electrically connected to the switch.

4. The intelligent monitoring system for railway CNC vehicle lathe status according to claim 1 is characterized by: The current signal acquisition module includes a third Adam module and at least one current sensor, each of the current sensors is electrically connected to the third Adam module, and the third Adam module is electrically connected to the switch.

5. The intelligent monitoring system for railway CNC vehicle lathe status according to claim 1 is characterized by: The vibration signal acquisition module includes a vibration collector, a spindle vibration sensor assembly and a tool holder vibration sensor assembly. The vibration collector is connected to the industrial computer, and the spindle vibration sensor assembly and the tool holder vibration sensor assembly are electrically connected to the vibration collector respectively.

6. The intelligent monitoring system for railway CNC vehicle lathe status according to claim 5 is characterized by: The spindle vibration sensor assembly includes a left spindle vibration sensor and a right spindle vibration sensor, and the left spindle vibration sensor and the right spindle vibration sensor are electrically connected to the vibration collector respectively.

7. The intelligent monitoring system for railway CNC vehicle lathe status according to claim 5 is characterized by: The tool holder vibration sensor assembly includes a left tool holder vibration sensor and a right tool holder vibration sensor, and the left tool holder vibration sensor and the right tool holder vibration sensor are electrically connected to the vibration collector respectively.

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