KR20160097887A - Apparatus for displaying manufacturing time of machine tool - Google Patents

Abstract

The present invention provides an apparatus for displaying the machining time of a machine tool. The apparatus for displaying the machining time of a machine tool comprises: a controller which selects one or more preset machining programs; a control part which is connected with the controller and adds up the machining time of a command coordinate and the machining time of a transfer speed with respect to the selected machining programs; a drive part which is connected with the control part and drives or moves a base material or a tool according to the machining program inputted to the controller; and a display part which is connected with the control part to display the added actual machining time.

Description

Technical Field [0001] The present invention relates to a machining time display apparatus for a machine tool,

The present invention relates to a machining time display device for a machine tool capable of predicting and displaying an accurate machining time of a machine tool.

A machine tool is a machine that is used for machining metal or nonmetal materials (hereinafter referred to as "base material") into shapes and dimensions by using various cutting or non-cutting machining methods, or for adding more precise machining.

Such machine tools are rapidly advancing automation and numerical control throughout the industry, and the market is rapidly expanding due to the wide demand of the industrial field.

On the other hand, in machining a large number of base materials by using a machine tool, a method of shortening the time required to comply with the ordered delivery time is required.

Here, in order to observe the delivery date or shorten the time, the worker must reflect the work progress situation in which the machining of the machine tool is currently being processed in the schedule, because of the unexpected situation such as modification or rework of the work path, And it is difficult to establish a realistic plan.

Therefore, there is a need for a system that can accurately predict the actual machining time and the machining end time of each work.

It is an object of the present invention to provide a machining time display device for a machine tool capable of accurately predicting an actual machining time and a machining end time of each work.

According to an aspect of the present invention, there is provided a computer program product comprising: a controller capable of selecting at least one or more machining programs set in advance; A control unit coupled to the controller and capable of summing the machining time for the command coordinates and the machining time for the selected machining program; A driving unit connected to the control unit and driving or moving the base material or the tool according to the machining program input to the controller; And a display unit for displaying the summed actual machining time in association with the control unit.

The control unit may further include: a position control unit for determining an arrangement position of the base material or the tool in accordance with the machining program input from the controller; A command generation unit that determines a feed path of the base material or the tool in accordance with the machining program input from the controller; A position command decode unit for deciding acceleration or deceleration time when moving the base material or the tool according to the machining program inputted from the controller; A speed command decode unit for deciding a base material or a tool feed speed in accordance with the machining program input from the controller; A memory for storing the position and speed of the base material or the tool according to the driving of the driving unit; And an operation unit for calculating an actual machining time according to the position and speed of the base material or the tool driven by the driving unit.

Further, the calculation unit can calculate the actual machining time using the following equation.

,

,

Where Z is the total sum of machining program times, n is the number of data for which the actual machining time is measured, T _{A, i} is the time taken to use the feed rate and distance per block of each machining program, f (d _{T, i} ) the i-th machining predicted time, d _j is the representative value, λ _j is a factor recognition is not possible or necessary on the part programs for the central value and the conveying distance of the conveying speed of the j-th block period in the part program, which defines a machining program for each block X _{i, j} represents the number of the jth block of the i-th data / the total number of blocks of the i-th data.

The driving unit may include a motor unit for driving the base material or the tool according to an instruction from the control unit. A detecting unit for detecting a state of the motor unit; And a compensation unit for compensating an actual driving state of the base material or the tool according to the detected state.

The present invention can predict the actual machining time and the machining end time by using the block distribution of the predetermined machining program, and thus it is possible to observe the exact delivery time or shorten the time.

1 is a block diagram of a machining time display apparatus of a machine tool according to an embodiment of the present invention;
2 is a view showing a predictive processing time according to an embodiment of the present invention.
FIG. 3 is a view showing that the prediction processing time according to the embodiment of the present invention is stored. FIG.
4 is a flowchart of a processing time display apparatus of a machine tool according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein are the same as the generic meanings of the terms understood by those of ordinary skill in the art, and where the terms used herein contradict the general meaning of the term, they shall be as defined herein.

It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to be &

FIG. 1 is a block diagram of a machining time display apparatus 100 of a machine tool according to an embodiment of the present invention. FIG. 2 is a display unit 140 showing a predicted machining time according to an embodiment of the present invention. The display unit 140 shows that the predicted machining time according to the embodiment of the present invention is stored.

1 to 3, a processing time display apparatus 100 for a machine tool according to an embodiment of the present invention includes a controller 110, a control unit 120, a driving unit 130, and a display unit 140 .

The controller 110 may be a button, a touch pad, or a dial operated by a user for controlling various components of the machine tool, and may be disposed at one side of the machine tool.

Accordingly, the user can select at least one or more machining programs preset by the controller 110. [ Here, the machining program means a control element of a machine tool component driven to process the base material, and may include a plurality of data each including a plurality of blocks. Such a machining program will be described in detail with reference to a mathematical expression to be described later.

The controller 120 can control the components in association with components in the machine tool. In addition, the control unit 120 may be systemized in association with the controller 110 so that the machining time for the command coordinates and the machining time for the feed speed can be summed for each selected machining program.

1, the control unit 120 includes a position control unit 121, a command generation unit 122, a position command decryption unit 123, a speed command decryption unit 124, a memory 125, Unit 126. The < / RTI >

Specifically, the position control unit 121 can determine the position of the base material or the tool in accordance with the machining program input from the controller 110. That is, when the manager inputs a predetermined machining program by the controller 110 or directly sets the machining path, the position control unit 121 reads the signal and determines the position of the base material or the tool.

The command generation unit 122 can determine the feed path of the base material or the tool according to the machining program input from the controller 110. [ Here, the operation of the command generating unit 122 may be determined after the positioning of the position control unit 121 is determined.

The position command decode unit 123 can determine the acceleration or deceleration time when the workpiece or the tool is moved according to the machining program input from the controller 110. The position control unit 121 and the command generation unit 122 And can be operated after the determination.

The speed command decode unit 124 can determine the base material or the tool feed speed in accordance with the machining program input from the controller 110 and is operable after the determination of the position control unit 121 and the command generation unit 122 . Also, the speed command decode unit 124 can be operated before the operation of the position command decode unit 123 is started.

The memory 125 may store the position and speed of the base material or tool according to the driving of the driving unit 130. Such a stored value may be used as a reference value of another base material to be processed subsequently.

The calculation unit 126 can calculate the actual machining time according to the position and velocity of the base material or tool according to the driving of the driving unit 130. [

Here, the calculation unit 126 may calculate the actual machining time using the following equation (1).

Where Z is the total sum of machining program times.

n is the number of data that measured the actual machining time. This is applied to the equation by substituting the Nn value of the machining program.

T _{A, i} is the time using the feed rate (m / min) and distance per block of each part program.

f (dT _{, i} ) is the machining prediction time defining each block of the i-th machining program, and can be derived from the following equation (2).

and d _j represents a representative value for the transfer speed of the jth block section in the part program and / or a representative value of the transfer distance.

Further, d _{T, i} can be calculated using the following equation (2).

Here, [lambda] _j is a decision variable in case that it is impossible to recognize on the part program or a necessary factor is added.

x _{i, j} represents the number of the jth block of the i-th data / the total number of blocks of the i-th data.

An example for applying this equation is as follows.

The number of the jth block of the i-th data is the number of blocks corresponding to Nn. Here, the n value is the total number of blocks of the i-th data, which is the number of blocks corresponding to Nn.

Referring to the example table, the number of the 4th block of the second data is 2. Here, the second data is N2.

The number of the fourth block is 2 because there are two F1000.

For example, in the first data, G00 starts driving, X100 moves 100 mm in the x-axis, Y100 moves 100 mm in the y-axis, and Z100 moves 100 mm in the z-axis. In the second data, G01 means cutting start, X123.123 means 123.123mm movement in the x-axis, Y123.123 means 123.123mm in the y-direction, F1000 means 1000mm / min as feed value.

The driving unit 130 is connected to the control unit 120 and can perform a function of driving or moving the base material or the tool according to the machining program input to the controller 110. [ The driving unit 130 includes a motor unit 131 for driving the base material or the tool according to a command from the controller 120, a detecting unit 132 for detecting the state of the motor unit 131, And a compensation unit 133 for compensating the actual driving state of the base material or the tool.

Here, the compensation unit 133 may directly compensate the machining program input to the controller 110, and the position control unit 121 may later send the content of the selected machining program. In this case, Can be displayed on the display unit 140.

The display unit 140 may display the summed actual processing time in association with the controller 120. The display unit 140 may be disposed on one side of the front side of the controller 110. [

The machining time predicted by the machining time display apparatus 100 of the machine tool according to this embodiment of the present invention can be displayed on the display unit 140 as follows.

Referring to FIG. 2, the main program has a first program set (see reference numeral A1), and thus the time (remaining time) at which the machining ends is 25 seconds (see No. A2) Numbers A3 and A4 are displayed graphically in numeric and bar form, and can be viewed intuitively by the operator.

3, the selected program display section B1, the part program display section B2 and the machining remaining time display section B3 are displayed. In total, nine machining programs are set in the main program, Only the part program is marked for 16 seconds remaining.

In this way, the machining time display device 100 of the machine tool according to the embodiment of the present invention can accurately and intuitively observe what machining is performed by the operator and the machining time.

The processing time calculation and display of the machining time display apparatus 100 of the machine tool according to the embodiment of the present invention will be described as follows.

4 is a flowchart of a machining time display apparatus 100 of a machine tool according to an embodiment of the present invention.

Referring to FIG. 4, once the controller 110 is operated by an operator to input a machining program, the controller 120 starts an operation for controlling the controller 110 (S10).

Thereafter, the blocks of the input machining program are read out to calculate the factors in each block (S20).

Thereafter, the command coordinates included in the block of the machining program are calculated, the machining time is calculated (S30), the machining time is calculated by calculating the conveying speed included in the block of the machining program (S40). This calculation method can be implemented by the above-described equation.

Thereafter, the machining time calculated in steps S30 and S40 is converted into a database and stored in the memory 125 (S50).

Thereafter, the control unit 120 outputs the machining time calculated in the steps S30 and S40 to the display unit 140, in the memory 125 (S60).

Thereafter, the steps S10 to S60 are repeated until the block is completed. When all the processes are completed, the operation and the program of the control unit 120 are terminated (S70).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. Range and its equivalent range.

100: machining time display device of a machine tool 110: controller
120: control unit 121: position control unit
122: Command generation unit 123: Position command decryption unit
124: Speed command decode unit 125: Memory
126: Operation unit 130:
131: motor unit 131: detection unit
133: compensation section 140: display section

Claims (4)

A controller capable of selecting at least one or more machining programs set in advance;
A control unit coupled to the controller and capable of summing the machining time for the command coordinates and the machining time for the selected machining program;
A driving unit connected to the control unit and driving or moving the base material or the tool according to the machining program input to the controller; And
And a display unit for displaying the summed actual machining time in association with the control unit.
The method according to claim 1,
Wherein,
A position control unit for determining an arrangement position of the base material or the tool in accordance with the machining program input from the controller;
A command generation unit that determines a feed path of the base material or the tool in accordance with the machining program input from the controller;
A position command decode unit for deciding acceleration or deceleration time when moving the base material or the tool according to the machining program inputted from the controller;
A speed command decode unit for deciding a base material or a tool feed speed in accordance with the machining program input from the controller;
A memory for storing the position and speed of the base material or the tool according to the driving of the driving unit; And
And an arithmetic unit for calculating an actual machining time according to a position and a velocity of the base material or the tool driven by the driving unit.
3. The method of claim 2,
Wherein the calculation unit calculates an actual machining time using the following equation.

,

Where Z is the total sum of machining program times, n is the number of data for which the actual machining time is measured, T _{A, i} is the time taken to use the feed rate and distance per block of each machining program, f (d _{T, i} ) the i-th machining predicted time, d _j is the representative value, λ _j is a factor recognition is not possible or necessary on the part programs for the central value and the conveying distance of the conveying speed of the j-th block period in the part program, which defines a machining program for each block X _{i, j} represents the number of the jth block of the i-th data / the total number of blocks of the i-th data.
The method according to claim 1,
The driving unit includes:
A motor unit for driving the base material or the tool according to an instruction from the control unit;
A detecting unit for detecting a state of the motor unit; And
And compensating means for compensating an actual driving state of the base material or the tool according to the detected state.

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