JPS5761461A - Surface grinder - Google Patents

Surface grinder

Info

Publication number
JPS5761461A
JPS5761461A JP13185080A JP13185080A JPS5761461A JP S5761461 A JPS5761461 A JP S5761461A JP 13185080 A JP13185080 A JP 13185080A JP 13185080 A JP13185080 A JP 13185080A JP S5761461 A JPS5761461 A JP S5761461A
Authority
JP
Japan
Prior art keywords
grindstone
pulse
stopped
work
fed
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.)
Pending
Application number
JP13185080A
Other languages
Japanese (ja)
Inventor
Kenichi Nishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13185080A priority Critical patent/JPS5761461A/en
Publication of JPS5761461A publication Critical patent/JPS5761461A/en
Pending legal-status Critical Current

Links

Landscapes

  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

PURPOSE: To prevent damaging of a grindstone and a work by a method wherein a detection signal from a sensort for the preliminary tremor of an earthquake is fed to a controller connected to a grinder, and the rotation of the grindstone is stopped after the grindstone is separated from the work.
CONSTITUTION: When the preliminary tremor (primary wave) of an earthquake is detected by the sensor 9, a pulse 12 is fed out, and a pulse 14 is fed out from a delay circuit 13 when the pulse 12 has disappeared. Then the output pulses 12, 14 are fed to a control panel 7. When the pulse 12 derived from the sensor 9 is generated, a grindstone supporing mechanism 2 is lifted up to a position such as to operate a limitting swtich 15, thereby separating the grindstone 3 from the work 6. With the switch 15 turns ON, supply of power to a motor for rotating the grindstone is stopped and, on the other hand, a table 4 is also stopped.
COPYRIGHT: (C)1982,JPO&Japio
JP13185080A 1980-09-22 1980-09-22 Surface grinder Pending JPS5761461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13185080A JPS5761461A (en) 1980-09-22 1980-09-22 Surface grinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13185080A JPS5761461A (en) 1980-09-22 1980-09-22 Surface grinder

Publications (1)

Publication Number Publication Date
JPS5761461A true JPS5761461A (en) 1982-04-13

Family

ID=15067568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13185080A Pending JPS5761461A (en) 1980-09-22 1980-09-22 Surface grinder

Country Status (1)

Country Link
JP (1) JPS5761461A (en)

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