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Machine tools and machine tool control methods

A control method and machine tool technology, applied in the direction of digital control, electrical program control, etc., can solve the problem that the tool replacement cycle cannot be shortened

Active Publication Date: 2015-09-23
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the tool replacement cycle cannot be shortened

Method used

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  • Machine tools and machine tool control methods
  • Machine tools and machine tool control methods
  • Machine tools and machine tool control methods

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Example 1 "G100T1R50.Z0.M10M03M436;"

[0046] G100 in Example 1 above is a tool change command. T1 is the number of the tool to be replaced. R50 is the value of point R (Z=50) at which the spindle head 7 descends and stops temporarily during single-step movement. Z0 is a command to position the spindle head 7 (Z axis) at 0. When referring to Table 170, M10 is not stored directly, so it is a 2-bit BCD signal. The CPU 71 outputs the BCD signal. When referring to Table 170, M03 indicates that the spindle is rotating in the forward direction, and the execution time is the execution time B. M436 represents the tool magazine rotation speed 1, and the execution time is the execution time C. Therefore, in Example 1, the BCD signal (M10) is output at the execution time A, the forward rotation of the spindle is executed at the execution time B (M03), and the magazine rotation speed 1 (M436) is executed at the execution time C.

[0047] Example 2 shows another program.

example 2

[0048] Example 2 "G100T1R50.Z0.M10M03M08;"

[0049] The description of the same commands as in Example 1 above is omitted. M08 indicates that the cooling pump is running, and this action is executed at the execution time C. Therefore, in Example 2, the BCD signal (M10) is output at the execution time A, the spindle is rotated forward at the execution time B (M03), and the cooling pump is operated at the execution time C (M08).

[0050] Reference Figure 7 The movement processing of the spindle head 7 in the Z-axis direction during the tool change operation will be described. When a tool change command is received, the spindle head 7 rises from the origin Z=0 in the Z-axis direction, and reaches the point R (Z=50) at the execution time A. The tool 6 leaves the workpiece at the execution time A. When the spindle head 7 rises until the execution time A, the tool does not interfere with the workpiece and the fixture. The spindle head 7 further continues to rise from the execution t...

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Abstract

The present invention relates to a machine tool and a control method thereof. The machine tool can automatically execute commands at a proper moment even a tool replacing command and an auxiliary action command which is executed in parallel with the tool replacing command are emitted at the same time. A CPU reads content and execution moment of the each command according to a form, then sorts the command contents according to order of the execution moments, and stores a result into an RAM. When the command is a tool replacing command (S3: yes), the CPU executes a Z-axis rising process, a spindle head rises from the present position to a tool replacing position (ATC original point); and in the case that the spindle head 7 rises to an R point, (S5: yes), when a command for executing at an execution moment A exists in the content of the command stored in the RAM (73) (S6: yes), the content of the command used for executing at the execution moment A is executed (S7).

Description

Technical field [0001] The invention relates to a machine tool and a control method of the machine tool. Background technique [0002] The machine tool has a plurality of tools that can be detached, and the tools specified by the machining program input by dialogue can be sequentially mounted on the spindle to continuously perform various machining. In the machine tool disclosed in Japanese Patent Application Publication No. 314236 of 2004, when replacing the tool mounted on the spindle, the spindle head is moved from the processing area to the tool replacement area (ATC origin) in order to prevent the workpiece from interfering with the tool. The machine tool performs tool change operations and auxiliary operations in parallel, shortening the work time. [0003] The machine tool described above performs the first auxiliary action (for example, B CD signal output) after the tool is changed, then performs the second auxiliary action (for example, the spindle forward rotation), and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/19
Inventor 川合贵博
Owner BROTHER KOGYO KK
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