GB480410A - Shaft bearing boring machine - Google Patents

Shaft bearing boring machine

Info

Publication number
GB480410A
GB480410A GB11055/37A GB1105537A GB480410A GB 480410 A GB480410 A GB 480410A GB 11055/37 A GB11055/37 A GB 11055/37A GB 1105537 A GB1105537 A GB 1105537A GB 480410 A GB480410 A GB 480410A
Authority
GB
United Kingdom
Prior art keywords
bars
bearings
work
boring
gear
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
GB11055/37A
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.)
Ernst Krause and Co
Original Assignee
Ernst Krause and 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 Ernst Krause and Co filed Critical Ernst Krause and Co
Publication of GB480410A publication Critical patent/GB480410A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B41/00Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/12Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

480,410. Boring-bar machines. KRAUSE & CO. AKT.- OES., E. April 19, 1937, No. 11055. Convention date, April 23, 1936. [Class 83 (iii)] A boring-machine having one or more spindles, particularly for operating on the bearings of engine crank-cases, gear-boxes, &c., has the spindles supported vertically at both ends, driven from below, and so coupled with the driving shafts that they may be withdrawn upwardly through the work. The machine comprises a base 1 containing the driving mechanism for two vertical shafts 4, Fig. 1, and carrying a work support 33. A pillar 2 carries a vertically adjustable head 21 for the upper bearings of two boring bars 7 which are releasably attached at 4<1> to the driving shafts 4. The upper bearings 8, Fig. 2, of the boring bars 7 are splined thereto so as to rotate therewith, but are axially fixed in the head and have axial slots 9<1> therein through which the cutters 71 of the bars may pass. The shafts 4 and bearings 8 are laterally adjustable to enable the spacing of the boring bars to be varied. A transverse shaft 13 provided with a handle 12 carries a bevel gear 15, Fig. 2, connected by a bevel gear 16 to a spur gear 17 engaging two spur gears 10, Fig. 1, freely rotatable about the boring bars 7 and rotatably and slidably mounted in bearings 11 in the head 2<1>. Springs 18, Fig. 3, tend to press the gears 10 downwards but are prevented from acting by levers 19 and pins 20 engaging cams 14 on the shaft 13. Rotation of the handle 12 to a definite angular position rotates the cams 14 to allow the gears 10 to descend and engage keys on the boring bars whereby the bars are rotated to bring the cutters 7<1> in line with the slots 9<1> of the bearings 8 so that the bars may be withdrawn axially from the work 35. This axial motion is effected by means of yokes 25 yieldingly mounted on a slide 27 carrying a rack engaging a pinion 23 connected by a shaft 22 and gear 21 to the gear 17. Actuation of the handle 12 thus moves the yokes yieldingly into contact with grooves 26 on the boring bars and the latter are then raised clear of the work to allow changing thereof by means of an electric motor 28, controlled by push-buttons 41, 42 and connected by worm gearing 29 and pinion 30 to a rack 31 attached to the carrier 271 of the slide 27. The motor is switched off automatically at the end of the traverse. The work 35 is held by a spring clamp 40, Fig. 3, and the cams 14 on a table 3 pivoted to the support 33 at 34 and located in the operative position by means of a stop 37 thereon engaging the pillar 2. In one direction of rotation of the shaft 13, a lever 39, Fig. 1, thereon engages a bevelled surface on the stop to press it against the pillar and in the other direction a lever 38 engages a bevelled surface on the opposite side of the stop to rotate the table 3 slightly about the pivot 34, simultaneously with release of the clamp 40, in order to allow the cutters 71, which have then been placed below the grooves 9<1> in the bearings 8, to clear the bores formed in the work when they are withdrawn axially. The table 3 may also be rotated through 180‹ on the support 33 to allow the bores formed therein to be measured, and the boring bars may then be lowered to enable the cutters to be adjusted, after which the bars are raised again and the table 3 returned to operative position. The rotation and axial feed of the shafts 4 are controlled by a hand lever 5, the change from quick approach to cutting feed and reversal of feed &c. being actuated automatically by dogs on a cam plate in a casing 6. The work is secured to the table 3 by hand-operated clamps and levelling bolts, centring bores, &c. Balancing parts.-The head 2<1> carrying the upper bearings for the boring bars 4 is balanced by means of a chain 32<1> and a weight sliding in the pillar 2.
GB11055/37A 1936-04-23 1937-04-19 Shaft bearing boring machine Expired GB480410A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE480410X 1936-04-23

Publications (1)

Publication Number Publication Date
GB480410A true GB480410A (en) 1938-02-22

Family

ID=6542539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11055/37A Expired GB480410A (en) 1936-04-23 1937-04-19 Shaft bearing boring machine

Country Status (1)

Country Link
GB (1) GB480410A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577454A1 (en) * 1985-02-15 1986-08-22 Honda Motor Co Ltd BORING PROCESS AND ALESER MACHINE
CN112658771A (en) * 2020-12-22 2021-04-16 江苏博林机械制造有限公司 Equipment for processing spindle hole of centrifugal machine
CN115475974A (en) * 2021-05-31 2022-12-16 浙江合诺机械有限公司 Boring machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577454A1 (en) * 1985-02-15 1986-08-22 Honda Motor Co Ltd BORING PROCESS AND ALESER MACHINE
CN112658771A (en) * 2020-12-22 2021-04-16 江苏博林机械制造有限公司 Equipment for processing spindle hole of centrifugal machine
CN115475974A (en) * 2021-05-31 2022-12-16 浙江合诺机械有限公司 Boring machine

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