GB872556A - Improvements in or relating to automatic and semi-automatic lathes and other machinetools - Google Patents

Improvements in or relating to automatic and semi-automatic lathes and other machinetools

Info

Publication number
GB872556A
GB872556A GB1062757A GB1062757A GB872556A GB 872556 A GB872556 A GB 872556A GB 1062757 A GB1062757 A GB 1062757A GB 1062757 A GB1062757 A GB 1062757A GB 872556 A GB872556 A GB 872556A
Authority
GB
United Kingdom
Prior art keywords
tool
template
feed
light
automatic
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
GB1062757A
Inventor
Ernest John Dawes
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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
Priority claimed from GB3728856A external-priority patent/GB839256A/en
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB1062757A priority Critical patent/GB872556A/en
Publication of GB872556A publication Critical patent/GB872556A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
    • B23Q15/22—Control or regulation of position of tool or workpiece
    • 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
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
    • B23Q15/28—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece with compensation for tool wear

Abstract

872,556. Machine-tool details. PLESSEY CO. Ltd. July 1, 1958 [April 1, 1957], No. 10627/57. Addition to 839,256. Class 83 (3). The method of toolwear compensation described in the parent Specification is supplemented by moving the tool periodically to a position in which the tool itself or, an image thereof, coincides, as long as its shape is correct, with a template or image of an ideal tool. The tool 1 may be brought up to a template 2 over which a light-source 3 is arranged. Shade side-panels 4 (one only shown) prevent light passing except between the tool and template. The amount of light passing through the gap, due to wear of the tool, is passed through a collector lens 5 which concentrates the light on to a photo-cell 8. The output of the latter is amplified at 9 and fed to an indicating instrument 11 and feed-setting device 10. Contact between the tool and template may be used to stop the feed, or the machine, or the feed may be stopped at a predetermined light value. An alternative arrangement using a magnified white-on-black image of the tool on which a correspondingly magnified shadow of the actual tool is superimposed, is described.
GB1062757A 1956-12-06 1957-04-01 Improvements in or relating to automatic and semi-automatic lathes and other machinetools Expired GB872556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1062757A GB872556A (en) 1956-12-06 1957-04-01 Improvements in or relating to automatic and semi-automatic lathes and other machinetools

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3728856A GB839256A (en) 1956-12-06 1956-12-06 Improvements in or relating to automatic and semi-automatic lathes and other machinetools
GB1062757A GB872556A (en) 1956-12-06 1957-04-01 Improvements in or relating to automatic and semi-automatic lathes and other machinetools

Publications (1)

Publication Number Publication Date
GB872556A true GB872556A (en) 1961-07-12

Family

ID=9971351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1062757A Expired GB872556A (en) 1956-12-06 1957-04-01 Improvements in or relating to automatic and semi-automatic lathes and other machinetools

Country Status (1)

Country Link
GB (1) GB872556A (en)

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