Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for detecting the presence of a rotating element in a machine tool

A technology of rotating elements, detection methods, applied in the direction of positioning measurement in boring/drilling machines, measuring/indicating equipment, metal processing machine parts, etc., can solve problems such as false negative errors

Active Publication Date: 2016-05-11
MARPOSS SPA
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] There is also a risk of false negative errors

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting the presence of a rotating element in a machine tool
  • Method for detecting the presence of a rotating element in a machine tool
  • Method for detecting the presence of a rotating element in a machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] exist figure 1 A numerically controlled machine tool 1 (such as an automatic drilling machine) is shown in the best schematic form, comprising a carrying rotary tool 3 (in figure 1 Shown in particular is the spindle 2 of the drill) and the table 4 carrying the workpiece 5 to be machined.

[0017] Furthermore, the machine tool 1 comprises a detection device 6 for detecting the presence of the rotary tool 3 (and thus indirectly detecting the integrity of the rotary tool 3). The integrity of the rotary tool 3 is tested by directing the detection device 6 towards the end portion of the rotary tool 3 (i.e. towards the front end): the rotary tool 3 is assumed to be present if the end portion of the rotary tool 3 is actually present And still intact. Obviously, the detection device 6 can be used only to detect the presence of the rotary tool 3 by directing the detection device 6 towards the central part of the rotary tool 3 itself.

[0018] The machine tool 1 may comprise a...

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

No PUM Login to View More

Abstract

Checking method and apparatus for checking the presence of a rotating element (3) at a known or determinable rotational frequency (RF); an emitter (8) directs a main electromagnetic radiation (9) towards the rotating element (3); a receiver (10) receives a reflected electromagnetic radiation (11) which has been reflected by the rotating element (3); and a processing unit (12) samples the reflected electromagnetic radiation (11) to determine a rough signal (S) to analyze, analyzes in the frequency domain the rough signal (S) to check whether the rough signal (S) includes a periodicity with a frequency corresponding to the rotational frequency (RF) of the rotating element (3), and determines that the rotating element (3) is actually present if the rough signal (S) includes a periodicity with a frequency corresponding to the rotational frequency (RF) of the rotating element (3).

Description

technical field [0001] The present invention relates to a detection method and apparatus for detecting the presence of a rotating element. The invention can advantageously be used to detect the presence or absence of a rotary tool in a numerically controlled machine tool, to which reference is made in the specification with express but without loss of generality. Background technique [0002] In CNC machine tools, different types of tools can be mounted on the spindle. These different types of tools are taken from and replaced in an automatic store and rotate during use to machine the workpiece by removing material. [0003] When it is necessary to change the tool, the spindle is placed in the automatic storage, where the spindle replaces the old tool and adopts a new tool. [0004] Since it can happen that the spindle does not take a new tool from memory, after a tool change it is necessary to detect whether the spindle has actually taken a new tool. In other words, it i...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23Q17/09B23Q17/24B23B49/00B23Q17/12
CPCB23Q17/2442B23B49/001B23Q17/0909B23Q17/12
Inventor D·马尔佩齐N·巴比里
Owner MARPOSS SPA