Intelligent turning repair system for rail transit wheel lathe and operation method of intelligent turning repair system

Abstract

The invention relates to the field of intelligent control of wheel lathes, and discloses an intelligent turning repair system for a rail transit wheel lathe and an operation method of the intelligent turning repair system. Comprising an informatization computer arranged on a wheel lathe, a wheel set automatic conveying module, a wheel set full-size measurement and automatic tool setting module, an economic turning repair software module, a machining state visual monitoring module and a clamping jaw orientation and automatic positioning clamping module. The informatization computer is connected with the wheel set maintenance informatization system; the wheel set automatic conveying module is used for conveying wheel sets to be subjected to turning repair and wheel sets subjected to turning repair; the wheel set full-size measurement and automatic tool setting module is connected with a wheel set tread to be subjected to turning repair and a wheel set tread subjected to turning repair; the economic turning repair software module is connected with the wheel lathe numerical control system; the machining state visual monitoring module is connected with a wheel lathe left-right numerical control tool rest. And the claw orientation and automatic positioning clamping module is connected with left and right tips and claws of the wheel lathe. The operation method comprises six steps, the intelligent degree and the automation degree are high, and the machining consistency is good.

Description

Technical Field

[0001] The invention relates to the field of intelligent control of wheel lathes and discloses an intelligent turning and repairing system for a rail transit wheel lathe and an operating method thereof. Background Art

[0002] Wheel lathes are special machine tools used for processing and repairing wheelsets for rail transit vehicles. They are widely used in the rail transit industry for turning and repairing the treads of steel wheelsets. After a period of operation, the treads of the wheelsets of rail transit vehicles will be worn; at the same time, the wheelsets will also suffer tread damage due to abnormal conditions or rolling fatigue; when the above situation occurs, it is necessary to promptly remove the faulty wheelset from the rail transit vehicle and send it to the wheel lathe for turning and repair to restore the condition of the wheelset tread. After the turning and repair are completed, the wheelset can be installed back on the rail transit vehicle. Therefore, the timely use of wheel lathes to turn and repair the wheelsets of rail transit vehicles is related to the safety of rail transit operations.

[0003] The current wheel lathe turning and repair operation methods and control measures are as follows: (1) According to the maintenance plan, the operator manually pushes or lifts the wheel pair to be turned and repaired to the track in front of the wheel lathe, and then pushes the wheel pair to be turned and repaired to the top of the loading bracket of the wheel lathe.

[0004] (2) The operator visually observes and manually operates the loading bracket of the wheel lathe to rise to an appropriate position, and visually observes and manually operates the left and right centers of the wheel lathe to extend and the claws to extend and clamp the wheelset, thereby completing the clamping of the wheelset.

[0005] (3) The operator uses a handheld measuring tool to measure the wear of the wheelset tread to be repaired, and manually operates the wheel lathe to drive the wheelset to be repaired to rotate and visually inspect the damage of the wheelset tread. Based on the above measurement and inspection results, the operator manually calculates and judges based on experience to determine various parameters such as the feed amount for the wheelset repair process.

[0006] (4) The operator manually operates the wheel lathe operating handle to manually align the tool. After the tool alignment is completed, the operator manually selects and starts the wheel lathe boring and repairing program to boring and repair the wheelset tread. During the boring and repairing process, the operator manually visually observes the tool cutting conditions and the accumulation of iron chips, manually removes the accumulated and entangled iron chips, and manually retracts the tool to break the chips when necessary.

[0007] (5) The operator uses a handheld measuring tool to measure the wheelset that has been repaired, visually inspects the condition of the wheelset tread, manually determines whether the quality of the wheelset that has been repaired is qualified, manually records relevant data and fills out a paper information card, manually operates the wheel lathe to unclamp the wheelset that has been repaired, and manually pushes the wheelset out; repeats the above operations to complete the processing of other wheelsets to be repaired.

[0008] The existing wheel lathe turning and repairing operation method is based on traditional equipment and tools and combined with a large amount of manual operation, and generally has the following shortcomings: (1) The existing wheel lathe turning and repairing operation method involves too many manual steps, and the key turning and repairing steps rely on manual experience and judgment. The operation quality is generally not high and the consistency is low. The operation efficiency is low, and excessive turning and repairing is prone to shorten the life of the wheelset.

[0009] (2) The existing wheel lathe turning and repair operation mode has a low degree of automation. Each wheel lathe must be equipped with 1 to 2 operators, and usually an auxiliary person is also required to transport the wheels. This requires a large amount of manpower and has high labor intensity.

[0010] (3) The existing wheel lathe turning and repair operation method has a low level of informatization. Historical operation data relies on manual filling and is usually recorded in paper form. It is impossible to form electronic documents of various historical operation data and connect them to the wheelset maintenance informatization system, which easily leads to data loss and brings difficulties to the traceability of various data.

[0011] In summary, due to the rapid development of my country's rail transit, the operating mileage increases year by year, the number of various types of locomotives, trucks, electric passenger cars, etc. is increasing, and the amount of wheelset turning and repair operations also increases accordingly; at the same time, although each rail transit maintenance plant has a certain amount of new demand for wheel lathes every year, these plants still have a large number of traditional wheel lathes and can still be put into use after they have not reached the scrapping and replacement age or after major repairs; therefore, it is urgently necessary to develop an intelligent turning and repair system for rail transit wheel lathes that can be equipped on new wheel lathes and can also be carried on traditional wheel lathes. Summary of the invention

[0012] In order to overcome the shortcomings of the background technology, the present invention provides an information computer arranged on a wheel lathe, a wheel set automatic conveying module, a wheel set full-size measurement and automatic tool setting module, an economical turning and repairing software module, a processing status visual monitoring module, a jaw orientation and automatic positioning clamping module; The information computer is connected to the wheelset maintenance information system; The wheelset automatic conveying module conveys wheelsets to be repaired and wheelsets that have been repaired; The wheelset full-size measurement and automatic tool setting module is connected to the wheelset tread to be repaired and the wheelset tread that has been repaired; The economic turning and repairing software module is connected to the wheel lathe numerical control system; The machining status visual monitoring module is connected to the left and right CNC tool posts of the wheel lathe; The clamping jaw orientation and automatic positioning clamping module is connected with the left and right centers and the clamping jaws of the wheel lathe.

[0013] Furthermore, the information computer includes an industrial control host, a display and a printer connected to the industrial control host. The industrial control host is equipped with wheel lathe information software, which can realize the synchronous control of various intelligent turning and repair functions according to the data issued by the wheelset maintenance information system and the data collected during the wheel lathe processing. At the same time, it can monitor the status of each process in the turning and repair process, interlock the actions of each process, automatically generate equipment status information and wheelset turning and repair data reports and connect them to the wheelset maintenance information system.

[0014] Furthermore, the wheelset automatic conveying module is composed of a trolley track, a conveying trolley, a wheelset lifting and lifting mechanism, etc. The wheelset lifting and lifting mechanism is installed on the conveying trolley. The conveying trolley can automatically move and accurately stop on the trolley track. One end of the trolley track is usually placed at the wheelset loading and unloading position, and the other end is placed at the wheel lathe clamping position; the conveying trolley can automatically connect the wheelset to be turned and repaired transported by the workshop wheelset manipulator or the wheelset AGV trolley to the wheel lathe clamping position, and can also send the wheelset after unclamping from the wheel lathe back to the wheelset loading and unloading position for the workshop wheelset manipulator or the wheelset AGV trolley to take away.

[0015] Furthermore, the wheelset full-size measurement and automatic tool setting module consists of a contact radial measuring wheel, an axial measuring wheel, a linear guide, a measuring sensor, etc. The wheelset full-size measurement and automatic tool setting module are respectively arranged on the left and right CNC tool holders of the wheel lathe, and each CNC tool holder is provided with one set. During measurement, each measuring wheel can be extended to contact the wheelset tread; the module can measure the tread diameter, rim thickness, rim height, end face runout, radial runout, inner distance, comprehensive value Qr of the wheelset, etc.; measurement is performed before turning and repairing, and a processing plan is formulated according to the measurement results and automatic tool setting is realized in combination with the preset tool tip position; measurement is performed after turning and repairing to determine whether the processing result is qualified.

[0016] Furthermore, the economical turning and repairing software module is installed in the CNC system of the wheel lathe. The economical turning and repairing software program can analyze and optimize the data of the full-size measurement of the wheelset before processing, and select the most economical cutting program to perform turning and repairing on the wheelset.

[0017] Furthermore, the processing status visual monitoring module includes a visual sensor, which uses machine vision recognition technology to analyze and judge the iron filings accumulation and wheelset tread status during the processing.

[0018] Furthermore, the jaw orientation and automatic positioning and clamping module controls the stopping direction of the jaw by adding a positioning sensor on the chuck to prevent the jaw from obstructing the wheelset from entering and exiting the machine tool channel. At the same time, a set of pull-wire encoders and optical fiber sensors are added to the spindles and jaws of the left and right headstocks to monitor the positions of the left and right centers and jaws, thereby realizing automatic positioning and clamping of the workpiece.

[0019] An operation method of an intelligent turning and repairing system for a rail transit wheel lathe, the steps are as follows: Step S1: According to the work plan arrangement of the wheelset maintenance information system, the wheelset to be repaired is transferred to the upper and lower material positions of the conveying trolley by using the workshop wheelset transfer manipulator or the wheelset conveying AGV trolley, and the conveying trolley lifts and transports the wheelset to be repaired to the top of the wheel lathe; Step S2: the claw orientation and automatic positioning clamping module controls the left and right centers of the wheel lathe to automatically extend to position the wheelset to be repaired, and at the same time, the claws extend to clamp the wheelset to be repaired, thereby completing the automatic clamping of the wheelset to be repaired; Step S3: The full-size measurement and automatic tool setting module of the wheelset is activated, each measuring wheel is extended to contact the designated position of the tread of the wheelset to be repaired and the wheelset tread profile data is measured. According to the measured data, the economical repair software module automatically performs analysis and optimization to generate the most economical repair program, and at the same time guides the wheel lathe to automatically align the tool according to the measurement data before automatic repair processing; during the repair processing, the processing status visual monitoring module remains activated to monitor and intelligently judge the processing status of the wheel lathe tool and the wheelset tread, and automatically controls the tool retraction and chip breaking or issues an abnormal status alarm; Step S4: After the turning and repairing process is completed, the wheelset full-size measurement and automatic tool setting module are activated, and the wheelset is measured after processing to determine whether the processing quality is qualified, and the relevant data is recorded and stored; Step S5: The clamping jaw orientation and automatic positioning clamping module controls the wheel lathe to automatically release the wheelset, and the clamping jaws are automatically oriented to an angle that does not hinder the wheelset from entering or exiting. The transport trolley receives the wheelset that has been repaired and returns it to the upper and lower material positions. The workshop wheelset transfer manipulator or the wheelset transport AGV trolley automatically transports the wheelset that has been repaired away. Step S6: The information computer performs statistical calculations and stores the wheel turning and repair process data and various result data and prints a paper report in a specified format. At the same time, the above data will also be uploaded to the wheelset maintenance information system in real time.

[0020] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention integrates the information computer of the wheel lathe, the automatic wheelset conveying module, the full-size wheelset measurement and automatic tool setting module, the economical turning and repairing software module, the processing status visual monitoring module, the claw orientation and automatic positioning clamping module, and has a high degree of intelligence and automation, high turning and repairing quality, good consistency, and good economy.

[0021] (2) The present invention is used to carry new wheel lathes, and can also be carried on traditional wheel lathes, which greatly reduces the number of operators. For every 3 to 5 intelligent wheel lathes, only one equipment inspection and patrol personnel is required, thereby reducing the number of personnel and increasing efficiency, and significantly improving the operating efficiency.

[0022] (3) The present invention has built-in wheel lathe information software, which realizes digital management and has a high degree of informatization. Various turning and repair operation data and machine tool status information can be stored in real time and connected to the wheelset maintenance information system. The data can be stored for a long time and traceable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic block diagram of the structure of an intelligent turning and repairing system for a rail transit wheel lathe of the present invention; Figure 2 This is a flow chart of an operation method of an intelligent turning and repairing system for a rail transit wheel lathe of the present invention; Figure 3 It is a processing data report generated by the information software of the wheel lathe of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 The intelligent turning and repairing system of a rail transit wheel lathe of the present invention comprises an information computer arranged on the wheel lathe, a wheel set automatic conveying module, a wheel set full-size measurement and automatic tool setting module, an economic turning and repairing software module, a processing state visual monitoring module, and a claw orientation and automatic positioning clamping module; The information computer is connected to the wheelset maintenance information system; The wheelset automatic conveying module is connected to the wheelsets to be repaired and the wheelsets that have been repaired; The wheelset full-size measurement and automatic tool setting module is connected to the wheelset tread to be repaired and the wheelset tread that has been repaired; The economic turning and repairing software module is connected to the wheel lathe numerical control system; The machining status visual monitoring module is connected to the left and right CNC tool posts of the wheel lathe; The clamping jaw orientation and automatic positioning clamping module is connected with the left and right centers and the clamping jaws of the wheel lathe.

[0026] Preferably, the information computer includes an industrial control host, a display and a printer connected to the industrial control host. The industrial control host is equipped with wheel lathe information software, which can realize the synchronous control of various intelligent turning and repair functions according to the data issued by the wheelset maintenance information system and the data collected during the wheel lathe processing. At the same time, it can monitor the status of each process in the turning and repair process, interlock the actions of each process, automatically generate equipment status information and wheelset turning and repair data reports, and connect to the wheelset maintenance information system.

[0027] Preferably, the wheelset automatic conveying module consists of a trolley track, a conveying trolley, a wheelset lifting and lifting mechanism, etc. The wheelset lifting and lifting mechanism is installed on the conveying trolley. The conveying trolley can automatically move and accurately stop on the trolley track. One end of the trolley track is usually placed at the wheelset loading and unloading position, and the other end is placed at the wheel lathe clamping position. The conveying trolley can automatically connect the wheelset to be turned and repaired transported by the workshop wheelset manipulator or the wheelset AGV trolley to the wheel lathe clamping position, and can also send the wheelset after unclamping from the wheel lathe back to the wheelset loading and unloading position for the workshop wheelset manipulator or the wheelset AGV trolley to take away.

[0028] Preferably, the wheelset full-size measurement and automatic tool setting module consists of a contact radial measuring wheel, an axial measuring wheel, a linear guide rail, a measuring sensor, etc. The wheelset full-size measurement and automatic tool setting module are respectively arranged on the left and right CNC tool holders of the wheel lathe, and each CNC tool holder is provided with a set. During measurement, each measuring wheel can be extended to contact the wheelset tread; the module can measure the tread diameter, rim thickness, rim height, end face runout, radial runout, inner distance, wheelset comprehensive value Qr, etc. of the wheelset; measurements are performed before turning and repairing, and a processing plan is formulated according to the measurement results and automatic tool setting is realized in combination with the preset tool tip position; measurements are performed after turning and repairing to determine whether the processing results are qualified.

[0029] Preferably, the economical turning and repairing software module is installed in the numerical control system of the wheel lathe. The economical turning and repairing software program can analyze and optimize the data of the full-size measurement of the wheelset before processing, and select the most economical cutting program to perform turning and repairing on the wheelset.

[0030] Preferably, the processing status visual monitoring module uses machine vision recognition technology to analyze and judge the iron chip accumulation and wheelset tread status during the processing. If abnormal chip accumulation that affects the processing quality is found, the tool retraction signal is automatically issued, and the processing is automatically resumed after the iron chips are broken and fallen, thereby realizing automatic chip breaking. When other abnormal conditions are found, an alarm prompt can also be automatically issued.

[0031] Preferably, the jaw orientation and automatic positioning clamping module controls the stopping direction of the jaw by adding a positioning sensor on the chuck to prevent the jaw from obstructing the wheelset from entering and exiting the machine tool channel. At the same time, a set of pull-wire encoders and optical fiber sensors are added to the spindles and jaws of the left and right headstocks to monitor the position of the left and right centers and jaws, thereby realizing automatic positioning and clamping of the workpiece.

[0032] like Figure 2 As shown, an operation method of an intelligent turning and repairing system for a rail transit wheel lathe, the steps are as follows: Step S1: According to the work plan arrangement of the wheelset maintenance information system, the wheelset to be repaired is transferred to the upper and lower material positions of the conveying trolley by using the workshop wheelset transfer manipulator or the wheelset conveying AGV trolley, and the conveying trolley lifts and transports the wheelset to be repaired to the top of the wheel lathe; Step S2: the claw orientation and automatic positioning clamping module controls the left and right centers of the wheel lathe to automatically extend to position the wheelset to be repaired, and at the same time, the claws extend to clamp the wheelset to be repaired, thereby completing the automatic clamping of the wheelset to be repaired; Step S3: The full-size measurement and automatic tool setting module of the wheelset is activated, each measuring wheel is extended to contact the designated position of the tread of the wheelset to be repaired and measures the wheelset tread profile and other related data. Based on the measured data, the economical repair software module automatically performs analysis and optimization to generate the most economical repair program, and at the same time guides the wheel lathe to automatically align the tool according to the measurement data before performing automatic repair processing; during the repair processing, the processing status visual monitoring module remains activated to monitor and intelligently judge the processing status of the wheel lathe tool and the wheelset tread, and automatically controls the tool retraction and chip breaking or issues an abnormal status alarm; Step S4: After the turning and repairing process is completed, the wheelset full-size measurement and automatic tool setting module are activated, and the wheelset is measured after processing to determine whether the processing quality is qualified, and the relevant data is recorded and stored; Step S5: The clamping jaw orientation and automatic positioning clamping module controls the wheel lathe to automatically release the wheelset, and the clamping jaws are automatically oriented to an angle that does not hinder the wheelset from entering or exiting. The transport trolley receives the wheelset that has been repaired and returns it to the upper and lower material positions. The workshop wheelset transfer manipulator or the wheelset transport AGV trolley automatically transports the wheelset that has been repaired away. Step S6: The computerized wheel turning and repair process data and various result data are statistically calculated and stored and printed as a paper report in a specified format, such as Figure 3 As shown, the above data will also be uploaded to the wheelset maintenance information system in real time.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0034] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent turning and repairing system for rail transit wheel lathes, characterized in that: It includes an information computer installed on the wheel lathe, a wheelset automatic conveying module, a wheelset full-size measurement and automatic tool setting module, an economical turning and repairing software module, a processing status visual monitoring module, and a claw orientation and automatic positioning clamping module; The information computer is connected to the wheelset maintenance information system; The wheelset automatic conveying module conveys wheelsets to be repaired and wheelsets that have been repaired; The wheelset full-size measurement and automatic tool setting module is connected to the wheelset tread to be repaired and the wheelset tread that has been repaired; The economic turning and repairing software module is connected to the wheel lathe numerical control system; The machining status visual monitoring module is connected to the left and right CNC tool posts of the wheel lathe; The clamping jaw orientation and automatic positioning clamping module is connected with the left and right centers and the clamping jaws of the wheel lathe.

2. The intelligent turning and repairing system for rail transit wheel lathes according to claim 1 is characterized in that: The information computer includes an industrial control host, a display and a printer connected to the industrial control host. The industrial control host is equipped with wheel lathe information software, which can realize the synchronous control of various intelligent turning and repair functions according to the data issued by the wheelset maintenance information system and the data collected during the wheel lathe processing. At the same time, it can monitor the status of each process in the turning and repair process, interlock the actions of each process, automatically generate equipment status information and wheelset turning and repair data reports and connect them to the wheelset maintenance information system.

3. The intelligent turning and repairing system for rail transit wheel lathes according to claim 1 is characterized in that: The wheelset automatic conveying module consists of a trolley track, a conveying trolley, and a wheelset lifting and lowering mechanism. The wheelset lifting and lowering mechanism is installed on the conveying trolley. The conveying trolley automatically moves and stops accurately on the trolley track. One end of the trolley track is usually placed at the wheelset loading and unloading position, and the other end is placed at the wheel lathe clamping position. The conveying trolley automatically connects the wheelset to be turned and repaired transported by the workshop wheelset manipulator or the wheelset AGV trolley to the wheel lathe clamping position, and can also send the wheelset unclamped from the wheel lathe back to the wheelset loading and unloading position for the workshop wheelset manipulator or the wheelset AGV trolley to take away.

4. The intelligent turning and repairing system for rail transit wheel lathes according to claim 1 is characterized in that: The wheelset full-size measurement and automatic tool setting module consists of a contact radial measuring wheel, an axial measuring wheel, a linear guide and a measuring sensor. The wheelset full-size measurement and automatic tool setting module are respectively arranged on the left and right CNC tool holders of the wheel lathe.

5. The intelligent turning and repairing system for rail transit wheel lathes according to claim 1 is characterized in that: The economical turning and repairing software module is installed in the CNC system of the wheel lathe. The economical turning and repairing software program can analyze and optimize the data of the full-size measurement of the wheelset before processing, and select the most economical cutting program to perform turning and repairing on the wheelset.

6. The intelligent turning and repairing system for rail transit wheel lathes according to claim 1 is characterized in that: The processing status visual monitoring module includes a visual sensor, which uses machine vision recognition technology to analyze and judge the iron chip accumulation and wheelset tread status during the processing.

7. The intelligent turning and repairing system for rail transit wheel lathes according to claim 1 is characterized in that: The jaw orientation and automatic positioning clamping module controls the stopping direction of the jaw by adding a positioning sensor on the chuck to prevent the jaw from obstructing the wheelset from entering and exiting the machine tool channel. At the same time, a set of pull-wire encoders and optical fiber sensors are added to the spindles and jaws of the left and right headstocks to monitor the positions of the left and right centers and jaws, thereby realizing automatic positioning and clamping of the workpiece.

8. An operating method for an intelligent turning and repairing system for a rail transit wheel lathe according to any one of claims 1 to 7, characterized in that: The steps are as follows, Step S1: According to the work plan arrangement of the wheelset maintenance information system, the wheelset to be repaired is transferred to the upper and lower material positions of the conveying trolley by using the workshop wheelset transfer manipulator or the wheelset conveying AGV trolley, and the conveying trolley lifts and transports the wheelset to be repaired to the top of the wheel lathe; Step S2: the claw orientation and automatic positioning clamping module controls the left and right centers of the wheel lathe to automatically extend to position the wheelset to be repaired, and at the same time, the claws extend to clamp the wheelset to be repaired, thereby completing the automatic clamping of the wheelset to be repaired; Step S3: The full-size measurement and automatic tool setting module of the wheelset is activated, each measuring wheel is extended to contact the designated position of the tread of the wheelset to be repaired and the wheelset tread profile data is measured. According to the measured data, the economical repair software module automatically performs analysis and optimization to generate the most economical repair program, and at the same time guides the wheel lathe to automatically align the tool according to the measurement data before automatic repair processing; during the repair processing, the processing status visual monitoring module remains activated to monitor and intelligently judge the processing status of the wheel lathe tool and the wheelset tread, and automatically controls the tool retraction and chip breaking or issues an abnormal status alarm; Step S4: After the turning and repairing process is completed, the wheelset full-size measurement and automatic tool setting module are activated, and the wheelset is measured after processing to determine whether the processing quality is qualified, and the relevant data is recorded and stored; Step S5: The clamping jaw orientation and automatic positioning clamping module controls the wheel lathe to automatically release the wheelset, and the clamping jaws are automatically oriented to an angle that does not hinder the wheelset from entering or exiting. The transport trolley receives the wheelset that has been repaired and returns it to the upper and lower material positions. The workshop wheelset transfer manipulator or the wheelset transport AGV trolley automatically transports the wheelset that has been repaired away. Step S6: The information computer performs statistical calculations and stores the wheel turning and repair process data and various result data and prints a paper report in a specified format. At the same time, the above data will also be uploaded to the wheelset maintenance information system in real time.

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