Controller for machine tool including automatic tool changer
An automatic tool, machine tool control technology, applied in positioning devices, program control, manufacturing tools, etc., can solve problems such as inability to detect tool indexing
Inactive Publication Date: 2016-04-20
FANUC LTD
View PDF8 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0012] However, the technique described in the above-mentioned patent documents is for detecting abnormal load when the tool of the tool post and the tool of the spindle are replaced after the indexing of the tool, not for detecting abnormality at the indexing of the tool.
In this technology, during the tool change process, the load of the motor that drives the tool changer arm is compared with the normal motor load to determine the abnormality, so there is a problem that the abnormality of the tool index cannot be detected until the tool change operation is performed.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] First, the basic concept of this method when abnormality detection at the time of tool replacement is performed using the control device of the present invention will be described.
[0027] The control device of the present invention monitors whether the tool is indexed correctly before the tool of the tool post and the tool of the spindle are replaced. In the tool indexing performed by the control device, the movement amount (rotation amount) of the tool post drive motor is very important. When judging whether the commanded tool is positioned at the correct position, it is necessary to estimate the movement amount of the tool post drive motor when the tool is indexed according to the tool replacement command, and compare the estimated movement amount of the tool post drive motor with the Compare the actual movement amount of the tool post drive motor when the tool is indexed. In addition, by monitoring the load of the tool post drive motor, it is also possible to more...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A controller for machine tool including an automatic tool changer is provided. The controller estimates an amount of movement of a tool post driving motor based on the number of a tool pot at a tool change position at the start of tool indexing operation and the number of a tool pot that houses a tool specified to be changed when the tool post driving motor is driven to perform tool indexing operation. The controller compares the estimated amount of movement of the motor with an actual amount of movement of the tool post driving motor in tool indexing operation, and thereby detects an abnormality in tool indexing operation, wherein the tool post driving motor drives a tool post that can house a plurality of tools and can position a desired tool to a specific position.
Description
technical field [0001] The present invention relates to a machine tool control device provided with an automatic tool changer, and more particularly to a machine tool control device which detects and notifies abnormality in the tool indexing operation of the automatic tool changer. Background technique [0002] Many machine tools are equipped with an automatic tool changer that automatically changes tools. There are various devices in the automatic tool changer, but it is often the case that the tool of the main shaft and the tool of the tool holder are replaced by driving a tool holder capable of storing multiple tools by a motor and positioning an arbitrary tool pot at a specific position. . [0003] Here, use Figure 5A (side view) and Figure 5B (Front View) A conventional example of the mechanism of the tool changing device using the tool post will be described. [0004] The tool stand 10 has a plurality of tool pots 12 connected by a chain 11 , and a tool 13 is acco...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/157
CPCB23Q3/15713G05B19/4062G05B2219/50249
Inventor 尾川宜嗣
Owner FANUC LTD