KR100600020B1 - A Concrete Operation Time Measuring Unit and Method Thereof - Google Patents

Abstract

The present invention relates to an apparatus and method for measuring a real operation rate of a machine tool, characterized in that the operator's operation rate can be accurately measured by receiving an override signal and a dwell time in addition to a power-on time from an operation panel and a numerical control module.

User Module (Man Machine Interface), Numerical Control Module (NC), Programmable Logic Control (PLC), Input / Output Module (I / O), Control Panel, Driver In a machine tool operating system comprising:

The operating time is measured by operator panel and numerical control module for each machine tool operation signal and operator, and the cycle lamp is input from the operation panel to extract the power-on time of the equipment, and the servo axis feed and spindle load are measured from the numerical control module. It is characterized in that it further comprises an equipment operation rate measuring unit for accurately checking the time actually cut work by the operator;

By accurately calculating the actual working time of the worker, it provides the effect of scientifically managing the working time.

Machine tool, actual operation rate, measuring device

Description

 A Concrete Operation Time Measuring Unit and Method Thereof}

1 is a block diagram of a machine tool real operation rate measuring device of the present invention.

Figure 2 is a flow chart of the operation rate measurement operation rate of the machine tool of the present invention.

3 is an embodiment of the present invention.

4 is an embodiment of a screen configuration of the present invention.

Explanation of symbols on the main parts of the drawings

110: user module 120: numerical control module

130: machine operation module 140: input and output module

150: operation panel 160: drive unit

170: equipment operation rate measuring unit

The present invention relates to an apparatus and a method for measuring a real operation rate of a machine tool, and in particular, by receiving an override signal and a dwell time in addition to a power-on time from an operation panel and a numerical control module, the operator's operation rate can be accurately measured. An apparatus and method for measuring a real operation rate of a machine tool.

Typically, the numerical control device of a machine tool is configured such that a machine tool operator (operator) performs a corresponding function by pressing an operation button of an operation panel.

The measurement of equipment utilization rate using only the power-on signal and cycle-on signal in the related art may cause measurement errors due to arbitrary manipulation by the operator, and it is not possible to measure the actual cutting time under load during actual cutting, In terms of equipment, the operation rate of equipment by workers was not known exactly.

In other words, the conventional method for checking the operation rate of the equipment is calculated by multiplying the power input time by the denominator and the automatic operation time by the numerator. The use of change or no-load whole machine lock and time delay can lead to high equipment operation rate, and even if the operator arbitrarily overrides, the operation rate of the equipment will be higher. I couldn't see if it did.

As a result, the conventional equipment processing rate is not able to accurately measure the work according to the actual cutting, and thus cannot distinguish the hard-working worker from the non-working worker, and thus does not have objective data that sufficiently compensates the hard-working worker. There was a problem of failing to obtain accurate evidence data to alert workers who worked laxly.

The present invention is to solve the above problems, in addition to the power on / cycle on time to measure the cutting feed time, the spindle load time to prevent any operation of the subsidiary, less than 100% override and dwell time during operation, single The goal is to ensure that the option is not applied to the machine utilization rate during the block.

As a means for achieving the above object,

The present invention relates to a user module (Man Machine Interface), Numerical Control Module (NC), Programmable Logic Control (PLC), Input / Output (I / O), Control Panel (Control Panel) and In the machine tool operating system comprising a drive unit,

The machine tool operating signal and working time are measured from the control panel and the numerical control module. The cycle lamp is input from the control panel to extract the power-on time of the equipment, and the servo axis feed and spindle load are measured from the numerical control module. It is characterized in that it further comprises an equipment operation rate measuring unit for checking the time of the cutting operation.

In addition, a step (S10) of designating the currently logged in worker number (a); Counting the power-on time of the current worker (S20); When the cycle start of operating the machine tool is started, the process proceeds to the next step and otherwise subtracts from the time calculation (S30); Checking whether there is an override and proceeding to the next step if there is no override, otherwise subtracting from the time calculation (S40); Checking whether there is a machine lock, and if there is no machine lock, proceed to the next step; otherwise, subtract it from the time calculation (S50); Calculating an automatic operation time (A) in a state in which cycle start is started, no override, and no machine lock (S60); Determining whether the cutting transfer is in progress, subtracting it from the time calculation if the cutting transfer is not in progress, and calculating a cutting operation time (B) during cutting transfer; Detecting the spindle load and subtracting it from the time calculation if there is no spindle load and calculating the actual cutting time (C) if there is the spindle load (S80); Equipment operation rate (A) [a..c] = Automatic operation time (A) [a..c] / Power input time * 100 (%), and equipment operation rate (B) [a..c] = Automatic Calculated as operation time (B) [a..c] / power input time * 100 (%), equipment operation rate (C) [a..c] = automatic operation time (C) [a..c] / power It is characterized by progressing sequentially consisting of step (S90) to calculate the input time * 100 (%).

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of a control system used in an actual machine tool according to the technology of the present invention.

User Module 110, Numerical Control Module 120, NC, Numerical Control, Mechanical Operation Module 130, Programmable Logic Control, PLC, Input / Output Module 140, I / O, Operation Panel 150, a control panel, a driving unit 160, and an equipment operation rate measuring unit 170 are configured.

The user module 110 displays the display of the part program, the execution block display, and the current machine coordinate indicator.

The numerical control module 120 reads the part program and performs a function corresponding to the input of the operation panel 150.

The machine operation module 130 sends the output from the numerical control module 120 to the input / output module 140 and informs the numerical control module 120 of the machine signal coming from the machine tool to perform the order control of the machine tool.

The input / output module 140 receives an input signal from the operation panel 150 and the motor, passes the input signal to the machine operation module 130, and outputs an output signal from the machine operation module 130 to the operation panel 150 and the motor. Export function.

The operation panel 150 receives control signals such as cycle start, emergency stop, mode change, spindle control, etc. from the user, and displays a mode or a feed override that is currently being performed.

The equipment operation rate measuring unit 170 measures the working time by dividing the machine tool operation signal and the operator from the operation panel 150 and the numerical control module 120, but receives a cycle lamp from the operation panel 150 to power on the equipment. Extracting the time, and measuring the servo axis feed and spindle load from the numerical control module 120 serves to accurately check the time worked by the operator.

According to the present invention made as described above, when the power is turned on through the operation panel 150 in order to perform a machining operation such as cutting a workpiece, the operator determines that the operation has been started by recognizing this in the equipment operation rate measuring unit 170.

Subsequently, if the numerical control module 120 proceeds according to a program, the cutting unit 160 performs a cutting command on the driving unit 160 through the input / output module 140, and at this time, an override occurs according to the operator's command, The spindle load occurs as the bar is processed. In the present invention, all of these situations are monitored and measured by the equipment operation rate measuring unit 170. In the process, when the override is higher than the reference value, the override occurrence time is deleted from the total equipment operation time. In addition, even if the load-free state such as cutting feed continues for a certain time, the cutting feed time is deleted from the total machine operation time.

Therefore, in the case of using the present invention, since the actual cutting time can be checked purely, it is possible to immediately determine whether or not the worker is chasing.

That is, in the past, it was determined that the operator continued to process the work even if the work was excessively progressed in a short time by generating an override while only the power of the equipment was turned on or the cutting feed was carried out at no load without cutting. In the present invention, by eliminating all of these times, it is possible to check only purely cutting work.

2 is an operation flowchart of the present invention,

Designating a currently logged in worker number (a) (S10);

Counting the power-on time of the current worker (S20);

When the cycle start of operating the machine tool is started, the process proceeds to the next step and otherwise subtracts from the time calculation (S30);

Checking whether there is an override and proceeding to the next step if there is no override, otherwise subtracting from the time calculation (S40);

Checking whether there is a machine lock, and if there is no machine lock, proceed to the next step; otherwise, subtract it from the time calculation (S50);

Calculating an automatic operation time (A) in a state in which cycle start is started, no override, and no machine lock (S60);

Determining whether the cutting transfer is in progress, subtracting it from the time calculation if the cutting transfer is not in progress, and calculating a cutting operation time (B) during cutting transfer;

Detecting the spindle load and subtracting it from the time calculation if there is no spindle load and calculating the actual cutting time (C) if there is the spindle load (S80);

Equipment operation rate (A) [a..c] = Automatic operation time (A) [a..c] / Power input time * 100 (%), and equipment operation rate (B) [a..c] = Automatic Calculated as operation time (B) [a..c] / power input time * 100 (%), equipment operation rate (C) [a..c] = automatic operation time (C) [a..c] / power Proceed sequentially with a step (S90) to calculate the input time * 100 (%).

Figure 3 shows the actual equipment operation rate display screen for the three operators calculated through the present invention, as shown, the equipment operation rate for the sum of the equipment operation rate and the total for three people is shown.

As shown, in the embodiment, the overall equipment utilization rate is 45%, the first worker is 100%, the second worker is 0%, and the third worker is 35%.

Also, when you turn on the power, the first worker is 32%, the second worker is 29%, and the third worker is 37%. One is the first one.

In other words, the first person uses the equipment for 32% of the time and 32% of the work is administered to 100% of the work, while the third person uses the equipment for 37% of the time and only 13% of the work works for 35%. Work is showing the diagram.

Thus, the first and third workers can see three times the difference in the actual cutting operation rate of the equipment.

In addition, the second person can see that there is no thread cutting while using the equipment for 29%.

If using the conventional processing rate measuring device, only the power part of the equipment can be seen, and it appears that the equipment was operated for 99% of the time. During the 45% of the time, the thread cutting process is performed. The first worker worked 100%, the second worker did not work at all, and the third worker worked only 35%.

Thus, the operator can guarantee higher profits to the first worker, warn the second worker, and have all these evidence data to provide more scientific justification for the personnel management.

In addition, the present invention was able to accumulate the work amount up to 38 days, the drawing example shows the results of the work on May 6, 2004.

In addition, the present invention can output the results of the operation to the CNC monitor as shown in FIG. 4, and can also be confirmed through other display media such as a computer monitor through online.

Of course, the security factor is important at this time, so only a person with authority should be able to access it using a password.

As a result, the conventional machine tool is measured indirectly by the cycle time and the power-on to measure only the operation rate of the equipment, not the actual working time of the operator, but the present invention improves this, as well as checking the cycle time / power on as well as cutting. By measuring the movement / cycle time and spindle load time / cycle time, the machine operation rate is measured in detail and the operation rate is measured separately for three workers. The use of time, machine lock, and single block selection provides the advantage of prohibiting arbitrary manipulation of the operator's utilization rate measurement.

As described above, the present invention provides the effect of scientifically managing the working time by accurately calculating the actual working time of the worker.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the present invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the present invention.

Claims (2)

User Module 110, Numerical Control Module 120, NC, Numerical Control, Mechanical Operation Module 130, Programmable Logic Control, PLC, Input / Output Module 140, I / O, Operation Panel In the machine tool operating system comprising a 150, a control panel and a drive unit 160, Measuring the machine tool operation signal and the working time from the operation panel 150 and the numerical control module 120, the cycle lamp is input from the operation panel 150 to extract the power-on time of the equipment, the servo from the numerical control module 120 The machine tool real operation rate measuring device, characterized in that further comprises an equipment operation rate measuring unit 170 for measuring the axis feed and the spindle load, the operator checks the actual cutting time. Designating a currently logged in worker number (a) (S10); Counting the power-on time of the current worker (S20); When the cycle start of operating the machine tool is started, the process proceeds to the next step and otherwise subtracts from the time calculation (S30); Checking whether there is an override and proceeding to the next step if there is no override, otherwise subtracting from the time calculation (S40); Checking whether there is a machine lock, and if there is no machine lock, proceed to the next step; otherwise, subtract it from the time calculation (S50); Calculating an automatic operation time (A) in which the cycle start is started and there is no override and no machine lock (S60); Determining whether the cutting transfer is in progress, subtracting it from the time calculation if the cutting transfer is not in progress, and calculating a cutting operation time (B) during cutting transfer; Detecting the spindle load and subtracting it from the time calculation if there is no spindle load and calculating the actual cutting time (C) if there is the spindle load (S80); Equipment operation rate (A) [a..c] = Automatic operation time (A) [a..c] / Power input time * 100 (%), and equipment operation rate (B) [a..c] = Automatic Calculated as operation time (B) [a..c] / power input time * 100 (%), equipment operation rate (C) [a..c] = automatic operation time (C) [a..c] / power Method of measuring the actual operation rate of the machine tool, characterized in that the step by step (S90) to calculate the input time * 100 (%).

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