GB1330354A - Automatically operating on a workpiece with a cutting or forming tool - Google Patents

Automatically operating on a workpiece with a cutting or forming tool

Info

Publication number
GB1330354A
GB1330354A GB4517470A GB4517470A GB1330354A GB 1330354 A GB1330354 A GB 1330354A GB 4517470 A GB4517470 A GB 4517470A GB 4517470 A GB4517470 A GB 4517470A GB 1330354 A GB1330354 A GB 1330354A
Authority
GB
United Kingdom
Prior art keywords
tool
exceeds
lathe
signal
workpiece
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.)
Expired
Application number
GB4517470A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1330354A publication Critical patent/GB1330354A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
    • G05B19/4163—Adaptive control of feed or cutting velocity
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34466—Bad circuits, watchdog, alarm, indication
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/43—Speed, acceleration, deceleration control ADC
    • G05B2219/43152—Feed in, transfer line, rapid traverse to work, grip speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Numerical Control (AREA)

Abstract

1330354 Machine tool controls SIEMENS AG 22 Sept 1970 [23 Sept 1969] 45174/70 Addition to 1216000 as improved upon or modified by 1242760 Heading B3B [Also in Division G3] In a lathe, the tool is moved up to the work at a fast rate, and when the spindle torque exceeds a lower threshold the tool moves at the cutting rate, the cutting traverse, and/or the in-feed of the tool, is reduced until the torque exceeds an upper threshold, the in-feed takes place up to a maximum of the programmed contour so long as the machining performance exceeds a lower threshold, and the time for which a signal proportional to the thrust in the longitudinal direction between the workpiece and the tool exceeds an adjustable limiting value is measured, and after a predetermined time interval for this exceeding condition, a command is issued as a fault indication, and/or the lathe is switched off. A lathe 1 has a workpiece 3 to be machined by a tool 4. The lathe is controlled by a numerical control system 2 using the tool spindle torque as a parameter. A tool mounting 5 can be moved in the X and Z directions, and a pressure-sensitive semi-conductor 6 produces a signal proportional to the thrust along the Z axis between the tool and work. This signal is passed through an amplifier 7 to the input of a limit signalling device 8. If the thrust signal exceeds a predetermined adjustable value the device 8 responds, and a signal from device 8 is fed into an integrating element 9 which is a capacitor. If the charge in element 9 has reached a specific level, a command to switch off the machine is supplied to control system 2. At the same time an optical indication of the fault is arranged at 10.
GB4517470A 1969-09-23 1970-09-22 Automatically operating on a workpiece with a cutting or forming tool Expired GB1330354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691948013 DE1948013A1 (en) 1969-09-23 1969-09-23 Method for adaptive control of lathes

Publications (1)

Publication Number Publication Date
GB1330354A true GB1330354A (en) 1973-09-19

Family

ID=5746235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4517470A Expired GB1330354A (en) 1969-09-23 1970-09-22 Automatically operating on a workpiece with a cutting or forming tool

Country Status (4)

Country Link
DE (1) DE1948013A1 (en)
FR (1) FR2066918B2 (en)
GB (1) GB1330354A (en)
IT (1) IT983301B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235552A (en) * 1989-06-23 1991-03-06 Nitto Kohki Co Controller for boring apparatus.
CN111077848A (en) * 2019-12-16 2020-04-28 北京天泽智云科技有限公司 Working condition segmentation method and device in cutter milling process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129789A (en) * 1976-01-30 1978-12-12 Phillips J Tool load sensor and control circuit
US4279013A (en) * 1979-10-31 1981-07-14 The Valeron Corporation Machine process controller
DE3713744A1 (en) * 1987-04-24 1988-11-03 Opel Adam Ag Lathe and proportional valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235552A (en) * 1989-06-23 1991-03-06 Nitto Kohki Co Controller for boring apparatus.
GB2235552B (en) * 1989-06-23 1993-06-16 Nitto Kohki Co Controller for boring apparatus
CN111077848A (en) * 2019-12-16 2020-04-28 北京天泽智云科技有限公司 Working condition segmentation method and device in cutter milling process
CN111077848B (en) * 2019-12-16 2020-09-15 北京天泽智云科技有限公司 Working condition segmentation method and device in cutter milling process

Also Published As

Publication number Publication date
DE1948013A1 (en) 1971-03-25
IT983301B (en) 1974-10-31
FR2066918B2 (en) 1973-01-12
FR2066918A2 (en) 1971-08-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee