KR950019356A - 수동식 공작 기계의 폐색에 의한 사고를 방지하기 위한 방법 및 장치 - Google Patents

수동식 공작 기계의 폐색에 의한 사고를 방지하기 위한 방법 및 장치 Download PDF

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KR950019356A
KR950019356A KR1019940039283A KR19940039283A KR950019356A KR 950019356 A KR950019356 A KR 950019356A KR 1019940039283 A KR1019940039283 A KR 1019940039283A KR 19940039283 A KR19940039283 A KR 19940039283A KR 950019356 A KR950019356 A KR 950019356A
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South Korea
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tool
sensor
blockage
torsion
machine tool
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KR1019940039283A
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English (en)
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KR100371785B1 (ko
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구쩰라 리노
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레인홀트 찰라츠, 톨란트 빌티
힐티 악티엔게젤샤프트
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Publication of KR100371785B1 publication Critical patent/KR100371785B1/ko

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/04—Arrangements preventing overload of tools, e.g. restricting load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P5/00—Emergency means for rendering ineffective a coupling conveying reciprocating movement if the motion of the driven part is prematurely resisted
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/03—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/13—Cutting by use of rotating axially moving tool with randomly-actuated stopping means
    • Y10T408/14—Responsive to condition of Tool or tool-drive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
    • Y10T408/165—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control Tool rotation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
  • Numerical Control (AREA)
  • Feeding Of Workpieces (AREA)

Abstract

본 발명은 폐색 현상의 시각까지 존재하는 운전 상태를 비틀림 센서, 특히 가속도 수령기(1)에 의해 측정함으로써 폐색 현상의 시각에서의 공작 기계의 예상 비틀림 예견적으로 연산한다는 사상에 근거하여 회전공구, 특히 해머 드릴을 구비한 수동식 공작 기계의 작업시 공구 폐색에 의한 사고를 방지하기 위한 방법 및 장치에 관한 것이다. 회전각을 예견적으로 연산함으로써, 미리 주어진 최대 비틀림 각도에 도달하기 훨씬전에 단속 장치, 특히 전류 단속기(6)과 연결된 전자기 커플링(5)를 작동할 수 있고, 이에 따라 구동 모터(7)의 로터에 축전된 운동 에너지와 이로 부터 발생되는 공작기계(M)으로의 모멘트가 단속된다. 즉, 회전 사고에 대한 안전도가 현저히 증가된다.

Description

수동식 공작 기계의 폐색에 의한 사고를 방지하기 위한 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 회전 사고를 방지하기 위해 동작 소요를 미리 계산하는 본 발명에 기초한 사상의 기본 기능을 설명하기 위한 블록 선도;
제2도는 본 발명에 따른 필수 구성 요소를 제1도에 상응하는 도면 부호를 부여하고 점으로 대비시켜 나타낸 수동식 공작 기계의 일례로서의 헤머 드릴의 개략도;
제3도는 센서로서 가속도 게이지를 사용할 경우에 예견 신호 평가를 위한 기능 블록 선도;
제4도는 제3도의 기능 배열중에 대역 적분기를 사용할 경우의 전달함수의 경과를 나타낸 그래프.

Claims (15)

  1. 비틀림 센서(1)에 의해 조사된 운전 상태에 의거하여 공구(18)에 대한 구동모터(7)의 작용을 단속하기 위한 단속 장치(5,6)이 장착되고 회전공구(8), 특히 해머 드릴을 구비한 수동식 공작 기계로 작업할때 공구폐색에 의한 사고를 방지하기 위한 방법에 있어서, 시상수(Ⅰ)를 미리 준 상태에서 비틀림 센서(1)에서 전달되는 회전이동량으로 부터 공작 기계(M)의 최대 허용 비틀림 각도를 예견적으로 연산하는 단계, 연산된 예상 비틀림각도가 최대 허용 비틀림 각도의 값을 초과하는 즉시 단속 장치(5, 6)을 작동하는 단계를 포함하는 것을 특징으로 하는 수동 공작기계의 공구 폐색에 의한 사고를 방지하기 위한 방법.
  2. 제1항에 있어서, 비틀림 센서(1)로서 회전 가속도 센서가 사용되며, 그 측정치(u(t))는 미리 주어 질 수 있는 참조치(uo)를 초과할 경우 시상수(t)의 지속 시간에 걸친 2번의 적분에 의해 예상 회전각으로 환산되는 것을 특징으로 하는 방법.
  3. 제2항에 있어서, 가속도 센서의 신호는 적분 과정시 또는 그 이전에 대역 한정되는 것을 특징으로 하는 방법.
  4. 제3항에 있어서, 유효 대역의 상한 주파수(wo)는 10e1 내지 10e4 Hz의 크기 단위에서 선택되는 것을 특징으로 하는 방법.
  5. 제3항 또는 제4항에 있어서, 유효 대역의 상한 주파수(wo)는 10e-1 내지 10e1 Hz의 크기 단위에서 선택되는 것을 특징으로 하는 방법.
  6. 선행항들중 어느 한항에 있어서, 단속장치(5)로서 구동 모터(7)로 부터 공구(8)까지의 구동 스트랜드에 배치된 커플링이 설치되는 것을 특징으로 하는 방법.
  7. 제1항 내지 제5항중 어느 한항에 있어서, 단속 장치(5)로서 전자기 제동기가 설치되는 것을 특징으로 하는 방법.
  8. 선행항들중 어느 한항에 있어서, 단속 장치로서 모터 전류 공급을 단속하는 전류 단속기(6)이 설치되는 것을 특징으로 하는 방법.
  9. 비틀림 센서(1)에 의해 조사된 운전 상태에 의거하여 공구(8)에 대한 구동모터(7)의 작용을 단속하기 위한 단속 장치(5,6)이 장착되고 회전공구, 특히 해머 드릴을 구비한 수동식 공작 기계로 작업할때 공구폐색에 의한 사고를 방지하기 위한 방법에 있어서, 비틀림 센서(1)에서 전달되는 미리 주어진 참조치(uo)를 초과한 센서신호(u(t))로 부터 정해진 시간 간격(t)에 걸쳐 공작 기계의 예상 비틀림 각도를 산출하는 연산 장치를 구비하며, 미리 주어진 최대 비틀림 각도의 초과시 단자(4)를 거쳐 단속 장치(5, 6)을 작동되는 것을 특징으로 하는 수동식 공작기계의 공구 폐색에 의한 사고를 방지하기 위한 방법.
  10. 제9항에 있어서, 비틀림 센서는 회전 가속도 게이지인 것을 특징으로 하는 방법.
  11. 제9항 또는 제10항에 있어서, 단속 장치는 구동 모터(7)과 공구(8) 사이의 구동 스트랜드에 배치된 것을 특징으로 하는 방법.
  12. 제10항에 있어서, 회전 가속도 게이지는 피에조 전기식, 피에조 저항식 또는 마이크로메카닉 가속도 게이지인 것을 특징으로 하는 방법.
  13. 제10항에 있어서, 회전 가속도 게이진ㄴ 전기-마이크로메카닉 결합 칩으로 형성되며, 그 진자체는 차동 콘덴서의 중간 전극을 형성하는 것을 특징으로 하는 방법.
  14. 제10항 내지 제13항중 어느 한항에 있어서, 연산 장치(3)은 직렬 결합된 대역 적분기(11, 12)를 포함하는 것을 특징으로 하는 방법.
  15. 제14항에 있어서, 제1적분기(11)에 선행하여 저역 필터(10)이 접속되며, 연산 장치(3)에 의해 처리되는 주파수(wv)와 100Hz＜wo＜1000Hz범위의 상한 주파수(wo)사이에 있는 것을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940039283A 1993-12-28 1994-12-27 휴대식공구장치의사이징에의한사고방지방법및장치 KR100371785B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4344817.8 1993-12-28
DE4344817A DE4344817C2 (de) 1993-12-28 1993-12-28 Verfahren und Einrichtung für handgeführte Werkzeugmaschinen zur Vermeidung von Unfällen durch Werkzeugblockieren

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KR950019356A true KR950019356A (ko) 1995-07-22
KR100371785B1 KR100371785B1 (ko) 2003-03-19

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Country Status (9)

Country Link
US (1) US5584619A (ko)
EP (1) EP0666148B1 (ko)
JP (1) JP3638977B2 (ko)
KR (1) KR100371785B1 (ko)
CN (1) CN1042406C (ko)
AT (1) ATE154537T1 (ko)
DE (2) DE4344817C2 (ko)
TW (1) TW260633B (ko)
ZA (1) ZA9410334B (ko)

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EP0666148A1 (de) 1995-08-09
TW260633B (ko) 1995-10-21
ZA9410334B (en) 1995-09-01
EP0666148B1 (de) 1997-06-18
JP3638977B2 (ja) 2005-04-13
KR100371785B1 (ko) 2003-03-19
JPH07253192A (ja) 1995-10-03
US5584619A (en) 1996-12-17
DE4344817A1 (de) 1995-06-29
CN1111334A (zh) 1995-11-08
DE59403183D1 (de) 1997-07-24
ATE154537T1 (de) 1997-07-15
DE4344817C2 (de) 1995-11-16
CN1042406C (zh) 1999-03-10

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