EP2953752A1 - Equipment to identify undersirable objects in cavities - Google Patents

Equipment to identify undersirable objects in cavities

Info

Publication number
EP2953752A1
EP2953752A1 EP13713340.1A EP13713340A EP2953752A1 EP 2953752 A1 EP2953752 A1 EP 2953752A1 EP 13713340 A EP13713340 A EP 13713340A EP 2953752 A1 EP2953752 A1 EP 2953752A1
Authority
EP
European Patent Office
Prior art keywords
equipment
spring
cavities
identify
objects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13713340.1A
Other languages
German (de)
French (fr)
Inventor
Jan MÁDL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Univerzita J E Purkyne V Usti Nad Labem
Original Assignee
Univerzita J E Purkyne V Usti Nad Labem
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univerzita J E Purkyne V Usti Nad Labem filed Critical Univerzita J E Purkyne V Usti Nad Labem
Publication of EP2953752A1 publication Critical patent/EP2953752A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/001—Devices for detecting or indicating failure of drills
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions

Definitions

  • the invention relates to an equipment to identify undesirable objects in cavities, in particular after machining, to avoid destruction of tools in the subsequent technological operation.
  • Automatic devices are not currently used to automatically identify undesirable objects, such as shavings after a prior operation or broken cutting tools, in cavities, especially in holes.
  • the problem is solved mainly by monitoring broken tools using the principle of measurement of forces or vibration that change in case of growing wear of the tool and its destruction.
  • the monitoring principles of this type are still being developed and this method of solution cannot be said to be reliably settled.
  • the body is advantageously made in the shape of a cylinder with a cavity along its axis, with a rod-shaped spring-loaded element inside.
  • the spring-loaded element is connected to the outer side of the body.
  • the alarm can be provided as a sound and/or light alarm.
  • the equipment can be placed directly in the tool tray on the machine tool.
  • the spring-loaded element comes into contact with an undesirable object in the cavity.
  • the element is lifted and the change position relative to the body is identified, e.g. using a wireless system whose sensor is installed on the body or using another physical principle.
  • the aforementioned device is especially advantageous because it can identify even very small objects, such as broken drills or shavings in small-diameter holes, where the identification of undesirable objects is otherwise very difficult. Clarification of drawings
  • the equipment to identify undesirable objects in cavities comprises a body 1, to which a spring-loaded element 2 is attached, with a spring placed between the body 1 and the spring-loaded element 2; the spring tries to push the element 2 out of the body 1.
  • the element 2 is in contact with an alarm.
  • the body 1 is cylinder-shaped, with a cavity along its axis, inside of which there is a rod-shaped spring-loaded element 2.
  • the device is placed in the tool tray to the machine tool.
  • the spring-loaded element 2 is connected to the outer side of the body 1.
  • the alarm is provided as a sound and light alarm.
  • the element 2 When the element 2 enters the cavity, it comes into contact with an undesirable object and its spring is loaded, which is identified by closing the contacts of an electric circuit placed between the body 1 and the element 2 and by a sound and light alarm.
  • the equipment can be used for example when machining on machine tools with an automatic cycle, e.g. on CNC stations, when drilling is followed for example by roughing and reaming or by threading. In case of an undesirable obstacle, these tools or even the workpieces can be destroyed.
  • the device is placed in the tray and its replacement is done in the same way as for other cutting tools. After drilling, the cutting tool is replaced with a probe under this invention and undesirable objects are identified. In case that there is something undesirable in the cavity, the manufacturing process of the machine is interrupted the tool will not be therefore destroyed.
  • the equipment to identify undesirable objects in cavities can be especially used after machining.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

A equipment to identify undesirable objects, in particular after machining, comprising a body (1), to which a spring-loaded element (2) is attached and there is a contact with sound and/or light alarm between the body (1) and the spring-loaded element (2). The device can be placed in the tool tray on the machine tool.

Description

Equipment to identify undesirable objects in cavities. Technical field
The invention relates to an equipment to identify undesirable objects in cavities, in particular after machining, to avoid destruction of tools in the subsequent technological operation.
State of the art
Automatic devices are not currently used to automatically identify undesirable objects, such as shavings after a prior operation or broken cutting tools, in cavities, especially in holes. The problem is solved mainly by monitoring broken tools using the principle of measurement of forces or vibration that change in case of growing wear of the tool and its destruction. The monitoring principles of this type are still being developed and this method of solution cannot be said to be reliably settled. There is a huge problem particularly with the identification of broken tools or shavings in small-diameter holes, where identification using force or vibration monitoring is very difficult and unreliable.
Essence of invention
The above deficiencies are removed with an equipment to identify undesirable objects in cavities, in particular after machining, as specified in this invention. Its essence is that it comprises a body to which a spring-loaded element is attached, with an alarm contact established between the body and the spring-loaded element.
The body is advantageously made in the shape of a cylinder with a cavity along its axis, with a rod-shaped spring-loaded element inside.
In another embodiment, the spring-loaded element is connected to the outer side of the body. The alarm can be provided as a sound and/or light alarm.
The equipment can be placed directly in the tool tray on the machine tool. When the element is inserted in a cavity, the spring-loaded element comes into contact with an undesirable object in the cavity. When the spring-loaded element comes into contact with the undesirable object, the element is lifted and the change position relative to the body is identified, e.g. using a wireless system whose sensor is installed on the body or using another physical principle.
The aforementioned device is especially advantageous because it can identify even very small objects, such as broken drills or shavings in small-diameter holes, where the identification of undesirable objects is otherwise very difficult. Clarification of drawings
The equipment to identify undesirable objects in cavities, in particular after machining, as specified in this invention will be described in greater detail on a specific embodiment using the attached figure 1, where its embodiment it shown schematically in a projection view.
Embodiments of the invention
The equipment to identify undesirable objects in cavities, in particular for machining, comprises a body 1, to which a spring-loaded element 2 is attached, with a spring placed between the body 1 and the spring-loaded element 2; the spring tries to push the element 2 out of the body 1. The element 2 is in contact with an alarm. The body 1 is cylinder-shaped, with a cavity along its axis, inside of which there is a rod-shaped spring-loaded element 2. The device is placed in the tool tray to the machine tool.
■
In another embodiment, the spring-loaded element 2 is connected to the outer side of the body 1.
The alarm is provided as a sound and light alarm. When the element 2 enters the cavity, it comes into contact with an undesirable object and its spring is loaded, which is identified by closing the contacts of an electric circuit placed between the body 1 and the element 2 and by a sound and light alarm.
The equipment can be used for example when machining on machine tools with an automatic cycle, e.g. on CNC stations, when drilling is followed for example by roughing and reaming or by threading. In case of an undesirable obstacle, these tools or even the workpieces can be destroyed. The device is placed in the tray and its replacement is done in the same way as for other cutting tools. After drilling, the cutting tool is replaced with a probe under this invention and undesirable objects are identified. In case that there is something undesirable in the cavity, the manufacturing process of the machine is interrupted the tool will not be therefore destroyed. Industrial use
The equipment to identify undesirable objects in cavities can be especially used after machining.

Claims

P A T E N T C L A I M S
1. An equipment to identify undesirable objects, in particular after machining, characterized in that it comprises a body (1), to which a spring-loaded element (2) is attached and there is a contact with an alarm between the body (1) and the spring-loaded element (2).
2. The equipment as in claim 1, wherein the body (1) is cylinder-shaped, with a cavity along its axis inside of which there is a rod-shaped spring-loaded element (2).
3. The equipment as in claim 1, wherein the spring-loaded element (2) is attached to the outer side of the body (1).
4. The equipment as in any of the above claims, wherein an alarm is provided in the form of sound or light alarm. ,
5. The equipment as in any of the above claims, wherein the device is placed in the tool tray on the machine tool.
EP13713340.1A 2013-02-05 2013-02-05 Equipment to identify undersirable objects in cavities Withdrawn EP2953752A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CZ2013/000010 WO2014121763A1 (en) 2013-02-05 2013-02-05 Equipment to identify undersirable objects in cavities

Publications (1)

Publication Number Publication Date
EP2953752A1 true EP2953752A1 (en) 2015-12-16

Family

ID=48044490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13713340.1A Withdrawn EP2953752A1 (en) 2013-02-05 2013-02-05 Equipment to identify undersirable objects in cavities

Country Status (2)

Country Link
EP (1) EP2953752A1 (en)
WO (1) WO2014121763A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2141777Y (en) * 1992-12-19 1993-09-08 刘道平 Alarm device for tyre of car in lack of air

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056329A (en) * 1976-03-08 1977-11-01 Invo Spline, Inc. Detection system for machine tools
JPS577451Y2 (en) * 1978-04-24 1982-02-12
US7424338B1 (en) * 2007-04-02 2008-09-09 Honda Motor Co., Ltd. Broken tool detection system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2141777Y (en) * 1992-12-19 1993-09-08 刘道平 Alarm device for tyre of car in lack of air

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014121763A1 *

Also Published As

Publication number Publication date
WO2014121763A1 (en) 2014-08-14

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