GB459573A - Improvements in or relating to centre-drilling machines - Google Patents

Improvements in or relating to centre-drilling machines

Info

Publication number
GB459573A
GB459573A GB344636A GB344636A GB459573A GB 459573 A GB459573 A GB 459573A GB 344636 A GB344636 A GB 344636A GB 344636 A GB344636 A GB 344636A GB 459573 A GB459573 A GB 459573A
Authority
GB
United Kingdom
Prior art keywords
jaw
vice
head
drilling
moved
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
GB344636A
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.)
Hopkinsons Ltd
Original Assignee
Hopkinsons 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
Application filed by Hopkinsons Ltd filed Critical Hopkinsons Ltd
Priority to GB344636A priority Critical patent/GB459573A/en
Publication of GB459573A publication Critical patent/GB459573A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
    • B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
    • B23B39/20—Setting work or tool carrier along a circular index line; Turret head drilling machines
    • B23B39/205—Turret head drilling machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

459,573. Drilling. HOPKINSONS, Ltd., BROWN, R. L., and METCALFE, T., Britannia Works, Wheathouse Road, Huddersfield. Feb. 5, 1936, No. 3446. [Class 83 (iii)] A centre - drilling machine has a workpiece vice with jaws which are hydraulically operated simultaneously towards or away from one another, one jaw being moved directly by the hydraulic motor and the other being moved simultaneously in opposite direction by gearing actuated by the motor. The vice is secured in framework supported directly above the pedestal 5, Fig. 2, the right-hand jaw s being adjustably secured to the piston v by a tonguepiece w and adjusting screw y and clamping screws 2. The other jaw t is simultaneously operated by a rack 3 on the piston member engaging a toothed wheel 4 which engages a rack 5 cut on the underside of the jaw. The drilling head c, Fig. 1, is carried at one end of a beam q, the other end of which carries worksupporting devices 11, 12. The head c carries two parallel spindles, one for a drill and the other for a countersink which may be brought, in turn, into line with the central axis of the machine by swivelling the head about its support, the motion being limited by adjustable stops. The handle g moves the tools, one being fed towards the work while the other is simultaneously retracted. The electric motor p for driving the spindles through the belts d, e also drives, through a sprocket chain 7, a pump 15, the control of pressure fluid from which is effected by a valve 6, Fig. 2, thus determining whether the vice-jaws are moved towards or away from one another. An end-stop 12a is provided for positioning the work and cutting fluid may be supplied by a vessel 9.
GB344636A 1936-02-05 1936-02-05 Improvements in or relating to centre-drilling machines Expired GB459573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB344636A GB459573A (en) 1936-02-05 1936-02-05 Improvements in or relating to centre-drilling machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB344636A GB459573A (en) 1936-02-05 1936-02-05 Improvements in or relating to centre-drilling machines

Publications (1)

Publication Number Publication Date
GB459573A true GB459573A (en) 1937-01-11

Family

ID=9758483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB344636A Expired GB459573A (en) 1936-02-05 1936-02-05 Improvements in or relating to centre-drilling machines

Country Status (1)

Country Link
GB (1) GB459573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386293A1 (en) * 1989-03-09 1990-09-12 David Fischer Device for centering and clamping

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386293A1 (en) * 1989-03-09 1990-09-12 David Fischer Device for centering and clamping

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