JPH09108902A - Data control system of wheel lathe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate a wheel lathe of a single train unit from the aspect of data control. SOLUTION: A wheel data control block 1 has a pre-work measuring data storage function of storing respective pre-work data with respective wheels obtained by measuring the respective wheels to constitute a unit group before cutting work, an individual cutting value determining function of individually determining a cutting value with respective wheels and a common cutting value determining function of determining a unified common cutting value from an individual cutting value group determined by the individual cutting value determining function. A wheel lathe control block 2 has a cutting control function of controlling wheel cutting of a unit group on the basis of a common cutting value, and a transmitting receiving means 19 has a common cutting value transmitting receiving function of transmitting the common cutting value to the wheel lathe control block from the wheel data control block, and while communicating in two ways, wheels of a single train are correctively cut in a unified condition without delay on the basis of input information.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a data management system for wheel lathes. In particular, the present invention relates to a wheel lathe data management system for automatically and uniformly correcting all wheels of one train or one vehicle.

[0002]

BACKGROUND OF THE INVENTION The wheels of a railroad vehicle are trimmed to correct a distorted tread profile when the mileage reaches a defined distance. The shape of the tread surface of the wheel is important. At the time of cutting, a diameter value that satisfies the flange thickness is calculated while maintaining the inclination angle of the tread shape. A dedicated lathe for wheel removal is known. In such a wheel lathe, the dimensions of the wheels are measured in advance. Based on this measurement result, the wheel grinding dimension is calculated and ground.

One vehicle constitutes a unit wheel group. The wheels included in a unit group must in principle have the same dimensions. Therefore, if you perform appropriate processing (processing that maximizes both diameter and flange thickness) from the measured value of one wheel, the corrected dimension of the wheel that will be processed later will be the first. In some cases, these values will be smaller than those of the wheels that have been machined, so that the previously machined wheels must be re-milled. Such a correction system is inefficient.

It is desirable that the size of a wheel that has been rectified is recorded until the next rectification in order to see its history. It is inaccurate and inefficient to record and record the measured dimensions on a notebook or card on a train-by-train basis. 1
There is a demand for automation of a wheel lathe retouching system that automatically determines the retouching dimensions of all the wheels of a train.

[0005]

SUMMARY OF THE INVENTION The present invention has been made based on such a technical background, and achieves the following objects.

An object of the present invention is to automate a wheel lathe from the viewpoint of data management.

Another object of the present invention is to provide a wheel lathe data management system for automating the wheel lathe.

Still another object of the present invention is to provide a data management system for a wheel lathe in consideration of data storage and the like until the next correction.

It is still another object of the present invention to provide a wheel lathe data management system which utilizes the dimension measurement function of the wheel lathe for automation of the wheel lathe.

Still another object of the present invention is to provide a wheel lathe data management system capable of automating the wheel lathe on a train-by-train basis.

[0011]

Means for Solving the Problems To solve the above-mentioned problems, the following means are adopted.

A wheel lathe data management system according to the first aspect of the present invention is a wheel data management block, a wheel lathe control block, and a transmitting / receiving means for transmitting / receiving data between the wheel data management block and the wheel lathe control block. The wheel data management block comprises a pre-machining measurement data storage function for storing each pre-machining data for each wheel obtained from measurement of each wheel that constitutes a unit group before correction machining, and each wheel. Individual correction value determination function that determines the correction value individually for each, and common correction value determination that determines the unified common correction value from the individual correction value group determined by the individual correction value determination function The wheel lathe control block has a trimming control function for controlling wheel trimming of the unit group based on the common trimming value, and the transmitting / receiving unit is the common trimming value. Wherein it is characterized in that the wheel data management block featuring common KezuTadashichi transmission and reception function for transmitting to the wheel lathe control block.

A wheel lathe data management system according to a second aspect of the present invention is the wheel lathe control block according to the first aspect, wherein each wheel lathe control block is obtained by measurement of each wheel constituting the unit group after the correction processing. A post-processing measurement data storage function of storing post-processing data is provided, and the transmitting / receiving means transmits the pre-processing data from the wheel data management block to the wheel lathe control block, and the post-processing data is the wheel lathe control block. From the wheel data management block to a data transmission function before and after processing.

A wheel lathe data management system according to a third aspect of the present invention is the wheel lathe data management system according to the first or second aspect, wherein the wheel data management block has a post-processing measurement data storage function for storing post-processing measurement data. It is characterized by being equipped.

A wheel lathe data management system according to a fourth aspect of the present invention is characterized in that, in the wheel lathe data management system according to the first, second or third aspects, the processed data is measured in the wheel lathe.

A wheel lathe data management system according to a fifth aspect of the present invention is the wheel lathe data management system according to the first, second, third or fourth aspect, wherein the unit group includes only wheels of the same vehicle.

In the present invention, the dimension of the wheel to be trimmed is measured outside the wheel lathe. It is possible to input the wheel data measured at a position apart from the wheel lathe and at the inspection stage before processing. Since the data for cutting is determined before the introduction into the machine, the wheels introduced into the machine can immediately enter the processing stage. This measurement may be on a vehicle-by-vehicle or train-by-train basis.

Since the cutting amount is determined based on the data of all the wheels belonging to the one unit group, the cutting amount may be determined before processing the first wheel of the one unit group. Therefore, this determination may be made immediately before processing. The wheels of one vehicle unit group are
It is decided by the calculation program before the correction so that the unified and common dimensions are obtained. The corrected dimension of the wheel introduced into the wheel lathe is determined for each unit group.

The cutting amount, which is the processing target value, may be corrected after the wheel is introduced into the machine. In this case, this modified value is set as a common value for one unit group. Such a fix
This is possible due to the feedback function between the wheel data management block and the wheel lathe control block. This fix
It can also be done for the non-first wheel of a unit group.

The dimensions after processing are recorded. The data recorded in this way is automatically saved in the wheel data management block until the next correction, so that it is possible to automatically create a history for each wheel. The present invention is not limited to the above-defined invention and includes various embodiments. For example,
It is convenient to arrange the wheels on the transfer track in the order of processing, but the wheels are not necessarily restricted in order.

After the information of all the wheels is input, the amount of correction is determined for each unit group, so that the processing can be performed in any order. It is not necessary to transmit all information about one wheel to the wheel lathe control block side. Only the diameter input values of the left and right wheels, the wheel diameter correction amount, and other management items measured before processing may be transmitted in a one-to-one correspondence.

From a functional point of view, the present invention notifies the wheel lathe side of a function of registering wheel data before processing, a function of determining a wheel diameter correction value for each unit group, a wheel diameter correction value, and the like. It has all or part of the function to perform, the function that the management side can receive measured values of each wheel after machining, and the function to feed back information in the same vehicle (within one unit group). With such a function, a fully-automated wheel lathe system can be configured on a vehicle-by-vehicle or train-by-train basis, but it is not always necessary to fully automate the system.

[0023]

Next, an embodiment of the present invention will be described. FIG. 1 is a block diagram showing a first embodiment of a wheel lathe data management system of the present invention. The data management block includes a wheel data management block 1 and a wheel lathe control block 2. The wheel data management block 1 includes a management-side central processing unit (CPU) 3 having the functions described below.

The wheel data management block 1 includes a read-only memory 4 that stores a management-side wheel data management system program in addition to the management-side central processing unit 3, and a management-side read-out that temporarily stores various data and the like. A memory 5 for writing, a wheel data table memory 6 for storing various wheel data in order of wheel numbers, a rank counter 7 for outputting wheel data in order of wheel numbers, and a wheel data for transmission before processing A wheel data transmitting buffer memory 8 and a wheel data receiving buffer memory 9 for storing processed wheel data for receiving are provided.

A personal computer is used as the wheel data management block 1 having such a configuration. Such a personal computer can be operated by key input from the keyboard 11. Further, necessary data such as wheel data is displayed on the display 10 by operating the keyboard 11,
Alternatively, it can be input to the wheel data table memory 6 or the like.

The wheel lathe control block 2 is provided with a control side central processing unit 12 having the functions described later. The wheel lathe control block 2 includes a read-only memory 13 that stores a system program for numerically controlling (NC) the wheel lathe in addition to the control side central processing unit 12, and a control that temporarily stores various data and the like. Side read / write memory 1
4. A memory 15 for reading and writing the machining program as needed including the machining program (hereinafter referred to as a machining program RAM memory) 15 is provided.

The central processing unit 12 on the control side includes servomotors 16X1 and 16X via the respective axis control units and servo amplifiers.
It has a control relationship with X2, 16Z1 and 16Z2. Servo motor 16X1, 16X2, 16Z1, 16Z2
Are provided such that two main shafts to which chuck members for chucking the wheels are attached face each other, and hold the wheels so as to sandwich them between the two chuck members. Direction orthogonal to), Z1
The two tool rests are moved and positioned by performing feedback control in the axial direction (main shaft axis direction), the X2 axis direction, and the Z2 axis direction, respectively.

Limit switch 17a, operation switch 1
7b and the like are connected to the control side central processing unit 12 via the input / output connector 18 and the PC 17. In addition, a touch sensor 1 for measuring each data of the wheel after the correction
7f is also connected to the bus line 12a via the input / output interface 17g. The automatic measurement by the touch sensor 17f is a known measurement method that is obtained from the moving position data when the touch sensor 17f outputs a touch signal and the contact portion size of the touch sensor 17f. The touch sensors 17f are provided on the left and right turrets respectively so as to be movable between the measurement position and the retracted position.

The wheel data management block 1 and the wheel lathe control block 2 are bidirectionally connected by a communication line 19 via respective communication interfaces.
Pre-processing wheel data is transmitted from the wheel data management block 1 to the wheel lathe control block 2, and post-processing wheel data is transmitted from the wheel lathe control block 2 to the wheel data management block 1, respectively.

FIG. 2 shows a wheel data table (buffer).
The management data stored and managed in the memory 6 is shown as a block diagram. In block # 1, for example, 1 of the first car
Wheel data D1 of the body name is stored and managed. Less than,
A case where one vehicle has four wheels will be described.

As the all-wheel data Dn, each data as shown in FIG. 3 is input together with the vehicle name, the vehicle number and the wheel management number, and the vehicle name, the vehicle number and the wheel management number are distinguished and output. It Such a block group #n is stored in the wheel data table memory 6 of the wheel data management block 1 described with reference to FIG.

FIG. 3 shows components of the wheel data D1 to Dn. The following information about the wheels is written and stored in this table. "Management number", "vehicle name", and "vehicle number" (= ST) are management information.
"Wheel diameter reference value" and "Wheel flange thickness reference value" are
It is a reference value to be set. "Right wheel diameter input value", "Left wheel diameter input value", "Right wheel flange thickness input value",
"Left wheel flange thickness input value" is a measured value measured before processing.

The "corrected wheel diameter value" is a calculated value which is automatically calculated and obtained by the central processing unit 3 on the management side based on the input value. Such management information, reference values,
The measured value is input from the keyboard 11 and stored in the wheel data table memory 6 of the wheel data management block 1. The calculated value is calculated by the central processing unit 3 on the management side and is input to the wheel data table memory 6.

"Measured value after diameter reduction of right wheel", "Measured value after diameter reduction of left wheel", "Measured value after distance reduction of wheel inner surface", "Measured value after right wheel flange thickness reduction", "Left wheel flange thickness" “Measured value after cutting”, “measured value after right wheel flange height cutting”, and “measured value after left wheel flange height cut” are measured values inside the machine after processing.

After processing, the touch sensor 17f is brought into contact with each measured portion of the wheel in the machine (see FIG. 13), and the position data at the time of touch signal output at the time of contact and the contact portion size of the touch sensor 17f (a in FIG. 13). , B, d, etc.) and the like to obtain a measured value.

That is, after processing, the touch sensor 17f in the machine is processed.
Such a value measured by the post-cutting measured value calculation unit 17h is automatically read by the control side read / write memory 1 automatically.
4 is temporarily stored in 4 and is transferred to the wheel data management block 1 side via the communication line 19. The transferred reception wheel data RD1 to RDn are received by the wheel data reception buffer memory 9 and then distinguished by the wheel management number, vehicle name, and vehicle number for each wheel, and the wheel data table memory 6 is provided.
Is stored.

FIGS. 4 (a), 4 (b) and 5 (a),
(B) is a data flow block diagram. FIG.
(A) shows a process of data input, and the type of data input from the keyboard 11 of the wheel data management block 1 has already been described.

FIG. 4B shows a wheel diameter reduction value determination process, and the wheel diameter reduction value is calculated by the management side central processing unit 3 based on the data input in FIG. 4A. The program input to the central processing unit 3 on the management side is a calculation program for calculating a wheel diameter having a shape as shown in FIG.

In FIG. 12A, the outer shape which is the reference shape of the wheel is shown by a dotted line, and the outer shape after a certain period of use is shown by a solid line. The magnitude of the flange thickness reference value is indicated by the length of the arrow marked with the flange thickness reference value. This length is the reference value set for this wheel.

Next, the wheel diameter (the shape shown by the chain double-dashed line) is calculated from the inclination angle shown in FIG. 12 (b) so that the flange thickness is satisfied. This calculation program executes calculation by the following simultaneous equations (1).

Flange thickness difference = Flange thickness reference value−Flange thickness input value Temporary cutting amount = 2, Flange thickness difference / coefficient (1) Wheel diameter target value = Right wheel diameter input value−Temporary cutting amount In (1), the coefficient is a constant related to the tilt angle. Such a determination process is executed by the central processing unit 3 on the management side for all wheels, and the wheel diameter correction value, which is the target value of the wheel diameter, is stored in the wheel data table of the wheel data table memory 6 as the wheel management number, the vehicle name, It is written corresponding to the vehicle number (see FIG. 4B). FIG. 5 (a)
The process of transmitting the transmission wheel data SD1 to SDn to the wheel lathe control block 2 side is shown. Transmission wheel data S
D1 to SDn are "wheel diameter reference value", "right wheel diameter input value", "left wheel diameter input value", "wheel diameter reduction value",
It is "other management matters". Transmission wheel data SD1 to SDn stored in the wheel data transmission buffer memory 8
The communication line 19 to the wheel lathe control block 2 on the wheel lathe side.
Forwarded over. On the wheel lathe control block 2 side,
Create a machining program for sequentially cutting the wheel diameter input value (wheel dimension before machining) to the wheel diameter trimming value with predetermined cutting dimensions separately on the left and right sides, and cause the wheel lathe to perform cutting.

FIG. 5B shows a process of transmitting the receiving wheel data RD1 to RDn after processing from the wheel lathe control block 2 to the wheel data management block 1. The receiving wheel data RD1 to RDn include "corrected wheel diameter value", "measured value after right wheel diameter reduction", "measured value after left wheel diameter reduction",
"Measured value after cutting wheel inner surface distance", "Measured value after right wheel flange thickness reduction", "Measured value after left wheel flange thickness reduction", "Measured value after right wheel flange height reduction", "Left wheel flange “Measured value after height reduction” and “Other”.

The wheel data for reception measured after cutting is temporarily stored in the memory 14 for occasional reading and writing on the control side, and then the wheel lathe control block 2 on the wheel lathe side communicates with the wheel via the communication line 19. The data is transferred to and stored in the wheel data table memory 6 via the wheel data receiving buffer memory on the data management block 1 side.

However, the wheel diameter correction value may change the correction value transmitted to the wheel lathe control block 2. This is because the operator may change the wheel diameter correction value on the wheel lathe control block 2 side because a deep scratch on the tread surface of the wheel or the like is found inside the machine. The program for calculating the wheel diameter reduction value is executed as shown in the flowcharts of FIGS. 6 and 7.

Wheel data having the same vehicle name and the same vehicle number are selected (step S1). For example, the wheel data D1 to D4 from the beginning to the fourth in the file of the wheel data table memory 6 are selected. 5 or more identical vehicle names,
If wheel data of the same vehicle number is selected (step S
2) There is an input error.

It is judged whether or not the wheel diameter reference value and the wheel flange thickness reference value of the four wheel data of the selected one vehicle are equal (step S3). If they are not equal, there is a typo. The wheel data D11 of one of the four wheels is selected (step S4) and input from the wheel data management block 1 to the management side central processing unit 3. The calculation represented by the equation (1) is performed by the management side central processing unit 3 for the right wheel (step S5). Next, the same calculation is performed for the left wheel based on the same wheel data D11 (step S6).

The smaller one of the two wheel diameter target values of the left and right wheels thus determined is provisionally registered in the management side central processing unit 3 as a temporary wheel diameter target value (step). S7). Steps S4 to S7 are repeated for the remaining three wheels. When these steps are completed for the four wheels (step S
8) That is, the wheel diameter reduction value (target value) of the same vehicle and the same vehicle number is determined. Of the four temporary wheel diameter target values determined for each wheel, the smallest value is set as the wheel diameter reduction value (step S9).

This wheel diameter correction value is written in common in the wheel diameter correction value terms of the four wheel data tables of the wheel data table memory 6. If the wheel diameter correction value is smaller than the wheel diameter reference value, it means that the wheel is out of the workable range and the wheel is defective.
The process ends (step S10).

The coefficient used in the equation (1) of the calculation performed in step S5 is a parameter stored in the parameter memory 5a determined from the shape of the tread. In this embodiment, the method of obtaining the cutting amount from the "flange thickness difference" is described. However, as the condition elements for determining the wheel cutting amount, the minimum cutting amount other than the "flange thickness difference" is used. (The amount that must be cut after running for a certain period of time), the depth of wheel scratches, etc. When adding such various elements,
The steps S5, S6, and S7 can be modified so that the largest cutting amount is taken as the common cutting amount and the wheel diameter cutting correction value is determined.

FIG. 7 is a block diagram mainly including the data flow, including the contents already described. Step S1
1 indicates that the wheel data table is stored in the wheel data table memory 6 of the wheel data management block 1. The wheel data D1 to Dn are formed as a wheel data table 31. From the wheel data table 31, in step S12, data tables D1, D2, D3 relating to four wheels having the same vehicle number (same vehicle name).
D4 is selected.

In step S3, a temporary wheel diameter target value is determined for each of the four wheels of the unit group (same vehicle number, same vehicle name) selected in this way. This step S13 is the same as step S7 of FIG. The lowest of the four provisional wheel diameter target values is 4
Determined as a common wheel diameter reduction value for the eight wheels,
The wheel data table memory 6 is written in the item of the wheel diameter reduction value of the wheel data table (step S14).

8, 9 and 10 show transmission wheel data SD.
The flow regarding transmission of 1 to SDn is shown. From the wheel data table memory 6 of the wheel data management block 1, the transmission wheel data SD1 to SDn are registered in the wheel data transmission buffer memory 8 in the order of processing (step S21).
In this processing order, the wheels are lined up on the transportation track. When there is a request for transmission of the transmission wheel data SD1 to SDn (step S22), the rank counter 7 advances by one count (step S23), and the transmission wheel data SD of the relevant wheel.
1 is transmitted from the wheel data management block 1 to the wheel lathe control block 2 (step S24).

This data transmission is performed for the data of the corresponding wheel. This transmission can be performed between the wheel data transmission buffer memory 8 of the wheel data management block 1 and the control side read / write memory 14 at any time. After the wheel processing is completed, the wheel lathe control block 2 outputs a wheel data request for the next wheel to the wheel data management block 1 and shifts to the processing of step S22.

FIG. 10 is a flow chart for communication of the receiving wheel data RD1 to RDn including each measured value after processing. When there is a reception request from the wheel lathe control block 2 side (step S31), the reception wheel data indicated by the rank counter is received by the wheel data reception buffer memory 9, and the received reception wheel data is deleted after each deletion. The measured value is written in the wheel data table indicated by the wheel data step counter. (Step S32). Next, the wheel data table table of the same vehicle name and vehicle number of the wheel data indicated by the wheel data step counter is searched (step S3).
3).

Next, it is determined whether the wheel data is the last data (step 34). When the wheel data does not reach the end, the received wheel diameter correction value is written in the wheel diameter correction value item of the found wheel data table (step S
34). In this way, the wheel diameter correction value common to the four wheels of the unit group is written as shown in FIG.

By the two independent computers of the wheel data management block 1 and the wheel lathe control block 2, information input and processing in the wheel data management block 1 can be carried out simultaneously. The storage of the processed data and the information input in the wheel data management block 1 can be simultaneously advanced.

In this embodiment, when the left and right wheels are machined, the two spindles / turrets are controlled by one wheel lathe control block. However, the left wheel spindle / turret and the right wheel spindle / turret are respectively controlled. It may be controlled by the wheel lathe control block. In this case, two wheel lathe control blocks are connected to the wheel data management block by communication lines.

[0058]

The data management system of the wheel lathe according to the present invention enables the automatic correction of all the wheels of one train. If the data corresponding to the wheels is input first, the control program operates the wheel lathe under the control of the data management program and bidirectionally communicates to complete the removal of all the wheels without delay.

Also, an example in which one vehicle has four wheels has been described, but the invention is not limited to this. The number may be 6 per vehicle or any other value.

[Brief description of the drawings]

FIG. 1 is a computer block diagram showing a first embodiment of a wheel lathe data management system of the present invention.

FIG. 2 is a block diagram showing a wheel data table according to the first embodiment.

FIG. 3 is a block diagram showing a configuration of a wheel data table.

4A and 4B are block diagrams showing data input to each wheel data table.

5 (a) and 5 (b) are block diagrams following FIG.

FIG. 6 is a flowchart showing the operation of the first embodiment.

FIG. 7 is a flowchart of wheel data.

FIG. 8 is a block diagram showing a wheel data table.

FIG. 9 is a flow chart diagram showing data transmission.

FIG. 10 is a flowchart showing data writing.

FIG. 11 is a data block diagram showing writing of wheel data.

12 (a) and 12 (b) are cross-sectional views for explaining a correction standard value of a wheel flange.

FIG. 13 is a cross-sectional view showing a shape measurement of a wheel flange.

[Explanation of symbols]

 1 ... Wheel data management block 2 ... Wheel lathe control block 3 ... Management side central processing unit 5 ... Management side read / write memory 6 ... Wheel data management block 7 ... Rank counter 11 ... Keyboard 12 ... Control side central calculation Processing unit 13 ... Read-only memory 14 ... Control side read / write memory 15 ... Machining program memory 17 ... PC 18 ... Input / output connector 19 ... Communication line

Claims (5)

[Claims] 1. A wheel data management block, a wheel lathe control block, and transmission / reception means for transmitting / receiving data between the wheel data management block and the wheel lathe control block. Before machining, a pre-machining measurement data storage function that stores each pre-machining data for each wheel obtained from the measurement of each wheel that constitutes the unit group before machining, and individually determines the correction value for each wheel. An individual correction value determination function and a common correction value determination function for determining a unified common correction value from the individual correction value group determined by the individual correction value determination function are provided, and the wheel lathe control block is provided. Is equipped with a trimming control function for controlling wheel trimming of the unit group based on the common trimming value, and the transmitting / receiving unit is configured to send the common trimming value from the wheel data management block to the vehicle. Wheel lathe data management system with a common correction value transmission / reception function for transmission to the wheel lathe control block. 2. The wheel lathe data management system according to claim 1, wherein the wheel lathe control block includes post-machining data for each wheel obtained from measurement of each wheel constituting the unit group after the correction machining. Is provided with a post-machining measurement data storage function, wherein the transmitting / receiving means transmits the pre-machining data from the wheel data management block to the wheel lathe control block,
A wheel lathe data management system having a pre-processing and post-processing data transmission function for transmitting the processed data from the wheel lathe control block to the wheel data management block. 3. The wheel lathe data management system according to claim 1, wherein the wheel data management block has a management block side post-processing measurement data storage function for storing post-processing measurement data. Data management system for wheel lathe. 4. The wheel lathe data management system according to claim 1, 2, or 3, wherein the processed data is measured inside the wheel lathe. 5. The wheel lathe data management system according to claim 1, 2, 3 or 4, wherein the unit group includes only wheels of the same vehicle.