GB724241A - Improvements in or relating to grinding machines - Google Patents

Improvements in or relating to grinding machines

Info

Publication number
GB724241A
GB724241A GB22285/52A GB2228552A GB724241A GB 724241 A GB724241 A GB 724241A GB 22285/52 A GB22285/52 A GB 22285/52A GB 2228552 A GB2228552 A GB 2228552A GB 724241 A GB724241 A GB 724241A
Authority
GB
United Kingdom
Prior art keywords
motor
cam shaft
switch
relay
energize
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
GB22285/52A
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.)
Bryant Grinder Corp
Bryant Chucking Grinder Co
Original Assignee
Bryant Grinder Corp
Bryant Chucking Grinder Co
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 Bryant Grinder Corp, Bryant Chucking Grinder Co filed Critical Bryant Grinder Corp
Publication of GB724241A publication Critical patent/GB724241A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

724,241. Control of several motors. BRYANT CHUCKING GRINDER CO. Sept. 4,1952 [Oct. 5, 1951], No. 22285/52. Class 38 (3) [Also in Group XXIII] Four electric motors 2M, 3M, 4M, 5M for driving the operative parts of a grinding machine (see Group XXIII) are controlled by switches and relays arranged in a low-voltage control circuit so as to enable the machine to carry out an automatic cycle. The control circuit is connected through a transformer 171 with the supply to the motors and includes relays 2m, 3m, 4m, 5m for the respective motors. The closure of a switch 175 acts through the relay 2m to energize the motor 2M to rotate the grinding wheel, and the closure of a second switch 190 acts through the relay 3m to energize the motor 3M to drive a main cam shaft. Cams on this shaft then close a switch LS4 to energize a relay 4m to drive the work spindle motor 4M and also effect controlled movements of the grinding wheel and work carriages. A further cam on the shaft also actuates a switch LS6 to de-energize a relay CR, the contacts 205, 215, 216 of which then serve, respectively, to (a) close the circuit of the relay 5m to drive the motor 5M for rotating a second cam shaft, (b) de-energize a clutch 165 between the motor 3M and the main cam shaft, and (c) apply a brake 166 to the latter motor. Cams on the second cam shaft then effect further controlled movements of the work carriage, followed by actuation of a switch LS7 whereby the relay CR is energized to stop the motor 5M and restart the drive of the first cam shaft by the motor 3M. Further movements of the two carriages under the control of the main cam shaft follow until the switch LS6 changes over the drive to the second cam shaft which, after providing additional movement of the work carriage, actuates the switch LS7 so that the main cam shaft takes over to return the carriages to their inoperative positions.
GB22285/52A 1951-10-05 1952-09-04 Improvements in or relating to grinding machines Expired GB724241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US724241XA 1951-10-05 1951-10-05

Publications (1)

Publication Number Publication Date
GB724241A true GB724241A (en) 1955-02-16

Family

ID=22107458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22285/52A Expired GB724241A (en) 1951-10-05 1952-09-04 Improvements in or relating to grinding machines

Country Status (1)

Country Link
GB (1) GB724241A (en)

Similar Documents

Publication Publication Date Title
GB684412A (en) Improvements in or relating to shapers
GB724241A (en) Improvements in or relating to grinding machines
GB823717A (en) Improvements in rotary switch operating means
GB809188A (en) Improvements in or relating to centerless grinding machines
GB481021A (en) Device for adjusting the grinding disc of grinding machines, more particularly gear grinding machines
US2149409A (en) Oscillating grinder
GB622209A (en) Improvements in and relating to lathes and other machine tools
US2124347A (en) Center drive camshaft lathe
GB469009A (en) Improved electrical controlling device for grinding and abrading machines
JPS5276794A (en) Cam grinding machine
GB802607A (en) Switching arrangement for multi-motor drives
GB1099743A (en) Brake for washing machine
GB632441A (en) Oscillating raceway grinders and methods of grinding raceways
GB371127A (en) Improvements in or relating to control apparatus for electric motors
GB732675A (en) Improvements in and relating to spinning mules
GB565316A (en) An improved arresting device for motor-wound clockwork mechanism
GB771577A (en) Improvements in and relating to the protection of machine tools
GB696100A (en) Improvements in or relating to machines for finishing workpieces
GB562437A (en) Lapping machines
GB770604A (en) Improved lapping machine
GB300190A (en) Improvements in or relating to liquid operated cushioning devices for machine tools
GB541521A (en) Improvements in or relating to control systems for capstan lathes and like machine tools
GB587195A (en) Improvements in or relating to electric switch devices particularly for use with storage conveyors
GB440255A (en) A new or improved machine for producing screw threads by a grinding operation
GB453367A (en) Improvements in and relating to safety devices for factory machines