JPH03178750A - Controlling method for machining in machine tool - Google Patents

Abstract

PURPOSE:To readily and promptly set data on tools by inputting information on tool position corresponding to a tool storage position so as to select from data on tools stored in memory means data on a tool stored in the tool storage position, and machining a work according to the data on the tool selected. CONSTITUTION:Data on tools 9 exceeding the number of tools that a tool storage means 7 is capable of storing is stored in memory means 16 and when a work is machined a tool 9 actually used for machining the work is stored in the tool storage position 7a of the tool storage means 7. Information PKN on tool position corresponding to the tool storage position 7a is input so that data DAT on the tool 9 stored in the tool storage position 7a is selected from the data DAT on tools stored in the memory means 16. The work is machined according to the data DAT on the tool selected.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a machining control method for a machine tool that allows tool data necessary for machining a workpiece to be easily set.

(b), Prior Art Conventionally, when machining a workpiece using a machine tool such as a machining center, when the tool used for machining is set in the tool magazine of the machine tool, the tool number of the tool,
Tool name, tool diameter, tool length.

Tool data such as life time and usage time is stored in a predetermined storage area such as a tool data memory in a form that corresponds to the tool storage pocket of the tool magazine.

(C) 0 Problems to be Solved by the Invention However, in this method, the tools stored in the tool storage pocket of the tool magazine and the tool data correspond one-to-one, so the tools to be stored in the tool storage pocket are Each time the tool is changed, it is necessary to re-input the tool data for the tool, which has the drawback of being extremely complicated and time-consuming.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a machining control method for a machine tool that allows easy setting of tool data regarding tools set in a tool magazine or the like.

(d) Means for solving the six problems, that is, the present invention provides a tool storage means (7) in which a tool storage position (7a) is set, and a memory means (16) for storing tool data (DAT). In the machine tool (1) having the tool storage means (7), the number of tools (
The tool data (DAT) related to 9) is stored in the memory means (
16), and when machining a workpiece, the tool (9) actually used for the machining is stored in the tool storage means (7).
), and among the tool data (DAT) stored in the memory means (16), the tool data (9) stored in the tool storage position (7a) is stored in the tool storage position (7a). DAT) in the corresponding tool storage position (7a
) is selected by inputting position information (PKN) corresponding to the tool, and the workpiece is machined based on the selected tool data (DAT).

Note that the numbers in parentheses are for convenience to indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings.The following r (e),
The same applies to the column "Effect".

(e) 1 Effect With the above-described configuration, 1 the present invention provides tool data (DAT) regarding the tool (9) used for machining the workpiece among the tool data (DAT) stored in advance in the memory means (16).
only is set selectively.

(f), Example An embodiment of the present invention will be described below based on the drawings.

FIG. 1 is a front view of a machining center which is an example of a machine tool to which an embodiment of the method for controlling machining in a machine tool according to the present invention is applied, and FIG. 2 is a view of the machining center shown in FIG.

FIG. 3 is a control block diagram of the machining center shown in FIG. 1.

FIG. 4 is a schematic diagram showing an example of tool data stored in the tool data memory.

FIG. 5 is a diagram showing an example of tool data displayed on the display.

A machining center 1, which is a machine tool, has a machine body 2, as shown in Fig. 1, and a table 3 on which a work is mounted is installed in the machine body 2 so as to be able to move and jump in two directions perpendicular to each other within a horizontal plane. It is being A main shaft 5 on which a tool is mounted is rotatably provided above the table 3 in the figure, and a tool changer 6 is provided on the left side of the main shaft 5 in FIG.

Further, as shown in FIG. 2, the one machine body 2 is provided with a tool magazine 7 formed in a disk shape so as to be rotatable and openable. are arranged in such a manner that the tools 9 can be removably housed in each one. In addition.

Each tool storage pocket 7a of the tool magazine 7 has a unique pocket number PKN, which will be described later.

By the way, as shown in FIG. 3, the machining center l has a main control section 11, and the main control section 11 is connected to an input section 13 such as a keyboard, a display section 14,
Cannibal program memory 15, tool data memory 16. Processing control section 17. An input error determination section 19, an alarm control section 20, etc. are connected. The display section 14 is the display control section 1.1
a and a display 14b, and the machining control section 17 includes the table 3, the main spindle 5. A tool changer 6 and a tool magazine 7 are connected.

Note that the tool data memory 16 stores, for example, as shown in FIG. 4, all the tools 9 (160 in FIG. 4) that may be used in the machining center 1, that is, the number of tools stored in the tool magazine 7 ( Number of tool storage pockets 7a)
An extended tool data file ETD is stored in which tool data DAT regarding a tool 9 exceeding the above is registered in advance.
These extended tool data files ETD store tool data DTA organized by tool number TN of the tool 9.

That is, rTNo shown in FIG. 4, the J digit has "1" to r1.
The numerical value 60J is stored as the tool number TN of each tool 9, and the name T N M of each tool 9 is stored in the r tool name J digit to the right of the tool number TN in the figure. Furthermore, “
Nominal diameter", rTool diameter".

The digits for "length J, r cutting edge correction", "thrust", "r horsepower", "life" and "use" respectively indicate the nominal diameter of the tool 9, the actual diameter of the tool 9, and the length of the tool 9. , the cutting edge position correction amount of the tool 9, the thrust coefficient of the tool 9, the horsepower coefficient of the tool 9, the life time of the tool 9, and the usage time of the tool 9 are stored as tool data DAT for each tool 9, and the tool magazine 7 rPKNo, J representing the number (described later) of the tool storage pocket 7a of
All digits are blank. Therefore, for example, “TNo.
, the tool 9 whose tool number TN stored in the J digit is "1" has "Face Mill" as the name TNM in the "Tool name" digit and r50 as the nominal diameter in the "Nominal diameter" digit. A.J.
"50" is the actual diameter in the "tool diameter" digit, rloOJ is the length in the "length" digit, rQJ is the cutting edge position correction amount in the "cutting edge correction" digit, and rQJ is the cutting edge position correction amount in the "cutting edge correction" digit. "50" is the horsepower coefficient in the digit, and r is the life time in the "life" digit.
200", and then add rl as the usage time in the digit of "r used"
Since 15J is stored, the tool number TN is I'
The tool 9, which is 1", has a nominal diameter of 50".

A I+ is a face mill with a diameter of 50 mm and a length of 100 mm, and the cutting edge of the tool 9 is at the tip of the tool.
The optimum horsepower is 50 for the horsepower of the drive motor of the main shaft 5.
%, and further indicates that the usable time until the tool 9 reaches the end of its life is 200 minutes, and the actual usage time so far is 115 minutes. Also, for example, rT
For tool 9, the tool number TN stored in the No. and J digits is rlOJ.

"Drill" is the name TNM in the "Tool Name" digit, "7." is the nominal diameter in the "R Nominal Diameter" digit, "7" is the actual diameter in the "Tool Diameter" digit, and "Length" is in the "Tool Diameter" digit. "r200" is the length in the "cutting edge correction" digit, r2.07J is the cutting edge position correction amount in the "cutting edge correction" digit, and "3" is the thrust coefficient in the "thrust" digit.
0" is in the "horsepower" digit, "30" is the horsepower coefficient in the "horsepower" digit, "
Since r200J is stored as the life time in the "life" digit and "76" is stored in the "usage" digit as the usage time, tool 9 with the tool number TN "10" has a nominal diameter of 117, I+ directly t17nw11. Length 200-
The cutting edge of the tool 9 is 2°0 from the tip of the tool.
The optimum thrust of the tool 9 is 30% of the Z-axis thrust of the machining center, and the optimum horsepower of the tool 9 is 30% of the horsepower of the drive motor of the main shaft 5. Furthermore, the usable time until the tool 9 reaches the end of its life is 200 minutes, and the actual usage time so far is 7.
It shows that it is 6 minutes.

Since the machining center l has the above configuration,
When machining a workpiece using the machining center 1, an operator first refers to the machine program PRG corresponding to the workpiece to be machined and stores the tools in the tool magazine 7 that constitutes the machining center 1 shown in FIG. The pocket 7a stores a tool 9 that will actually be used for the machining that will be performed from now on. In this way, when the tool 9 to be used for the machining to be performed from now on is set in the tool magazine 7 of the machining center 1, the tool 9 set in the tool magazine 7 is
(i.e., the operation of specifying which tool 9 is stored in each tool storage pocket 7a of the tool magazine 7).

To do so, the operator outputs a tool data display command DC to the main control section 11 via the input section 13 shown in FIG. Then, the main control section 11 controls the display control section 1 of the display section 14.
4a to display the tool data DAT stored in the extended tool data file ETD. In response to this, the display control unit 14a reads out the extended tool data file ETD stored in the tool data memory 16.

Each tool data DAT of the read extended tool data file ETD is displayed on the display 14b.

Then, tool data DAT regarding each tool 9 is displayed on the display 14b, as shown in FIG. 5, for example. Note that in the case of the display 14b shown in FIG. 5, due to the size of the display 14b, rTNo.
Only the tool data DAT regarding the 16 tools 9 whose tool numbers TN stored in the J digit are "1" to "16" are displayed, but the remaining tools 9 in the file ETD, that is, "
Tool data DAT regarding 144 tools 9 having tool numbers TN from ``17'' to r160J are also stored from the next screen onwards.
Tool data DAT regarding the tool 9 having an arbitrary tool number TN can be displayed on the display 14b.

In this way, each tool 9 in the extended tool data file ETD
When the related tool data DAT is displayed on the display 14b, one operator operates the input unit 13 to select the tool 9 to be used for the machining to be performed from among the tools 9 on the display 14b. That is, only for the tool 9 set in the tool magazine 7 in preparation for future machining (that is, the tool 9 to be used for the machining to be performed from now on), the pocket number PKN of the tool storage pocket 7a in which the tool 9 is stored is determined. to the display 14 via the input section 13
rPKNo on b, enter in the J digit, and other tools 9
For tool storage pocket h7a pocket number PKN
Do not enter it, leave it blank.

For example, the tool number TN is "1", "3", r4J, r5
In order to process a workpiece using the six tools 9, which are J, r6j, and rloJ, the tool 9 whose tool number TN is rlJ is placed in the first pocket of the tool magazine 7 (that is, the pocket number PKN is "1"). The tool 9 with the tool number TN "3" is stored in the tool storage pocket 7a (the same applies hereinafter).
into pocket 5 of tool magazine 7, tool number TN is r
The tool 9 of 4J is placed in the 20th pocket of the tool magazine 7, the tool 9 with the tool number TN "5" is placed in the 21st pocket of the tool magazine 7, and the tool 9 with the tool number TN "6" is placed in the 22nd pocket of the tool magazine 7. In your pocket.

Furthermore, the tool 9 with the tool number TN "10" is placed in the tool magazine 7.
As shown in Fig. 5, the rPKNo, J digit of the tool 9 whose tool number TN stored in the rTNo, J digit is rlJ is stored in the 30th pocket of the tool 9.
" is stored as the pocket number PKN, and the tool 9 whose tool number TN stored in the J digit is "2" is not used for the relevant machining, so the rPKNo, " digit of this tool 9 is left blank. PKNo.J of tool 9 whose tool number TN stored in the rTNo.J digit is "3".
Store r5J as pocket number PKN in the digit of rT
rPKNo of the tool 9 whose tool number TN stored in the No. and J digits is "4", "20" is stored in the J digit as the pocket number PKN, and the tool number TN stored in the rTNo. and J digits. rPKNo of tool 9 whose is "5", "21" is stored in the J digit as pocket number PKN, rTN
rPKNo of tool 9 whose tool number TN stored in the J digit is "6", pocket number P with "22" stored in the J digit
Tools 9 whose tool numbers TN stored in the digits of rTNO, J are "7", "8", and "9" are not used for the relevant machining, so the rPKNo, J of these tools 9 is
Leave the digit blank, rTNo, rPKN of tool 9 whose tool number TN stored in the J digit is "10".
"30" is stored as the pocket number PKN in the o and J digits, and the tool number TN stored in the rTNo and J digits.
Since the tools 9 with "11" or more are not used for the processing, the rPKNo and J digits of these tools 9 are left blank. In this way, rPKNo, J on the display 14b
Each pocket number PKN stored in the digit is stored in the extended tool data file ETD of the tool data memory 6, and here the selection operation of the tool 9 to be used for the machining is completed.

At this time, as described above, for the tools 9 stored in the tool storage pocket 7a of the tool magazine 7, only the pocket number PKN of the tool storage pocket 7a is displayed on the display 14.
By appropriately inputting data on the tool data memory 16
It becomes possible to select the tool data DAT regarding the tool 9 used for machining the workpiece from the tool data DAT registered in advance in the extended tool data file ETD.

Therefore, when machining a workpiece, the tool number TN, name TNM, nominal diameter, actual diameter, length, cutting edge position correction amount, thrust coefficient, horsepower coefficient, life time, and use of all tools 9 used for the machining are required. There is no need to input tool data DAT such as time, etc., and tool data D necessary for machining the workpiece is required.
AT settings can be performed easily and quickly.

In this way, when the selection operation of the tool 9 to be used for the machining to be performed from now on is completed, the operator places the workpiece to be machined on the table 3 shown in FIG. Processing start command SC to the control unit 11
Output. Then, the main control unit 11 input error determination unit 1
9 to determine whether there is an input error in the pocket number PKH. In response to this, input error determination unit 1
9 is a Canadian program PR corresponding to the workpiece to be machined.
G from the machining program memory 5, and all tool numbers TN of tools instructed to be used for machining in the machining program PRG are read. Furthermore, it is determined whether the pocket number PKN of the tool magazine 7 storing each tool 9 corresponding to the read tool number TN is stored in the extended tool data file ETD, and the pocket number PKN is stored. Unused tools 9
If it is determined that there is even one line, it is determined that it is impossible to perform proper processing, and the input error determination unit 19
outputs an alarm signal SGI to the alarm control section 20. In response to the alarm signal SGI, the alarm control section 20 activates an alarm means (not shown) such as an abnormality warning light to notify the operator that an error has occurred in inputting the pocket number PKN.

On the other hand, each tool 9 having the read tool number TN
If the pocket number PKN for each is stored in the extended tool data file ETD, the input error determination unit 19
If it is determined, the input error determination section 19 outputs a machining start signal SG2 to the machining control section 17 in order to start machining the workpiece mounted on the table 3. Upon receiving the machining start signal SG2, the machining control unit 17 reads out the cannibal program PRG corresponding to the workpiece to be machined from the cannibal program memory 15, searches the tool data memory 16, and stores each tool in the tool magazine 7. Tool data DAT regarding the tool 9 stored in the pocket 7a (
That is, the tool data DAT regarding the tool 9 in which the pocket number PKN is stored in the rPKNo, J digit is read.

Further, the machining control unit 17 drives the tool magazine 7 to rotate based on the read machine program PRG and the read tool data DAT, and causes the tool changer 6 to rotate the tool magazine 7 and the spindle 5. While exchanging tools in between, the table 3 on which the work to be machined is mounted is moved horizontally, and the work is machined using the tool 9 mounted on the main spindle 5.

In this way, the machining of the workpiece based on the machine program PRG and the tool data DAT is completed, and when machining the next workpiece, the operator must ensure that the tool 9 to be used for machining is in the tool magazine of the machining center L. 7, it is necessary to perform the specified operation of the tool 9 set in the tool magazine 7 with respect to the extended tool data file ETD. ), in this case,
As already mentioned, simply by appropriately inputting the pocket number PKN of the tool storage pocket 7a on the display 14b, the extended tool data file ET in the tool data memory 16 is saved.
Among the tool data DAT registered in advance in D, it becomes possible to easily select and set the tool data DAT related to the tool 9 used for machining the workpiece.

In the above embodiment, the machining center 1 has been described, but the present invention can be used as long as it has a tool storage means such as the tool magazine 7 and a memory means such as the tool data memory 16 that stores the extended tool data file ETD. Needless to say, it can be applied to any machine tool.

(g) 0 Detailed Description of the Invention According to the present invention, tool storage means such as the tool magazine 7 in which the tool storage position such as the tool storage pocket 7a is set, and tool data storing the tool data DAT. In a machine tool such as a machining center 1 having a memory means such as a memory 16, tool data DAT regarding tools 9 exceeding the number of tools stored in the tool storage means is stored in the memory means, and when machining a workpiece, the tool data DAT is stored in the memory means. The tool 9 to be actually used is stored in the tool storage position of the tool storage means, and among the tool data DAT stored in the memory means, the tool data DAT regarding the tool 9 stored in the tool storage position is stored. The configuration is such that the tool is selected by inputting position information such as pocket number PKN corresponding to the tool storage position, and the workpiece is machined based on the selected tool data DAT. The tool data DAT settings are
It can be completed with simple operations such as inputting location information. As a result, even if the tool 9 to be stored in the tool storage position of the tool storage means of the machine tool changes when machining a workpiece, there is no need to re-enter the tool data DAT of the tool 9 each time. It becomes possible to easily and quickly set the tool data DAT.

[Brief explanation of drawings]

The first engineering drawing is a front view of a machining center, which is an example of a machine tool to which an embodiment of the method for controlling machining in a machine tool according to the present invention is applied. Fig. 2 is a view of the machining center shown in Fig. 1 in the direction of the ■ arrow, Fig. 3 is a control block diagram of the machining center shown in Fig. 1, and Fig. 4 is a schematic diagram showing an example of tool data stored in the tool data memory. , FIG. 5 is a diagram showing an example of tool data displayed on the display. l... Machine tool (machining center) 7...
...Tool storage means (tool magazine) 7a...
Tool storage position (tool storage pocket) 9...Tool 16...Memory means (tool data memory) DA
T...Tool data

Claims (1)

[Scope of Claims] A machine tool having a tool storage means in which a tool storage position is set and a memory means for storing tool data, wherein tool data regarding tools exceeding the number of tools stored in the tool storage means is stored in the memory means. When machining a workpiece, the tools actually used for the machining are stored in the tool storage position of the tool storage means, and the tool data stored in the memory means is stored in the tool storage position. Machining control in a machine tool configured to select tool data regarding a selected tool by inputting position information corresponding to the tool storage position, and to process the workpiece based on the selected tool data. Method.