IT1262363B - Broccia e metodo di brocciatura di fori di cuscinetto allineati, in particolare per cuscinetti di banco in un blocco cilindri. - Google Patents

Broccia e metodo di brocciatura di fori di cuscinetto allineati, in particolare per cuscinetti di banco in un blocco cilindri.

Info

Publication number
IT1262363B
IT1262363B ITRM930262A ITRM930262A IT1262363B IT 1262363 B IT1262363 B IT 1262363B IT RM930262 A ITRM930262 A IT RM930262A IT RM930262 A ITRM930262 A IT RM930262A IT 1262363 B IT1262363 B IT 1262363B
Authority
IT
Italy
Prior art keywords
broach
broaching
bearing holes
cylinder block
aligned bearing
Prior art date
Application number
ITRM930262A
Other languages
English (en)
Original Assignee
Nat Broach & Mach
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 Nat Broach & Mach filed Critical Nat Broach & Mach
Publication of ITRM930262A0 publication Critical patent/ITRM930262A0/it
Publication of ITRM930262A1 publication Critical patent/ITRM930262A1/it
Application granted granted Critical
Publication of IT1262363B publication Critical patent/IT1262363B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D43/00—Broaching tools
    • B23D43/02—Broaching tools for cutting by rectilinear movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D37/00—Broaching machines or broaching devices
    • B23D37/02—Broaching machines with horizontally-arranged working tools
    • B23D37/04—Broaching machines with horizontally-arranged working tools for broaching inner surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Una broccia allungata per brocciare una pluralità di fori di cuscinetti allineati assialmente, avente una porzione anteriore di pilotaggio ed una porzione posteriore di pilotaggio. Fra le porzioni di pilotaggio anteriore e posteriore, la broccia ha porzioni di brocciatura e porzioni di pilotaggio che si alternano. Mentre una porzione di brocciatura sta brocciando un foro di cuscinetto, la adiacente porzione di pilotaggio sta guidando la broccia nel foro di cuscinetto immediatamente seguente. Ciò fornisce un movimento guidato della broccia ed impedisce alla broccia di deviare fuori linea.
ITRM930262A 1992-10-27 1993-04-26 Broccia e metodo di brocciatura di fori di cuscinetto allineati, in particolare per cuscinetti di banco in un blocco cilindri. IT1262363B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96729192A 1992-10-27 1992-10-27

Publications (3)

Publication Number Publication Date
ITRM930262A0 ITRM930262A0 (it) 1993-04-26
ITRM930262A1 ITRM930262A1 (it) 1994-10-26
IT1262363B true IT1262363B (it) 1996-06-19

Family

ID=25512583

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM930262A IT1262363B (it) 1992-10-27 1993-04-26 Broccia e metodo di brocciatura di fori di cuscinetto allineati, in particolare per cuscinetti di banco in un blocco cilindri.

Country Status (6)

Country Link
JP (1) JPH06143024A (it)
CA (1) CA2089244A1 (it)
DE (1) DE4328272A1 (it)
FR (1) FR2697186A1 (it)
GB (1) GB2271949B (it)
IT (1) IT1262363B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435676A (en) * 1992-10-27 1995-07-25 National Broach & Machine Company Two-stage broaching of engine block bearings
GB2365376B (en) 2000-07-28 2004-02-11 Rolls Royce Plc Broaching
JP2007331077A (ja) * 2006-06-16 2007-12-27 Nachi Fujikoshi Corp インボリュートスプラインブローチ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292900A (en) * 1940-09-16 1942-08-11 Chase Brass & Copper Co Broach
GB551098A (en) * 1942-01-08 1943-02-08 Lapointe Machine Tool Co Improvements in or relating to method of rifling gun barrels
US2644369A (en) * 1948-05-17 1953-07-07 Nat Broach & Mach Broaching machine
FR2029870A5 (it) * 1969-01-29 1970-10-23 Cea L
FR2178425A5 (it) * 1972-03-31 1973-11-09 Recoules & Fils Ets
US4498361A (en) * 1983-04-25 1985-02-12 Ex-Cell-O Corporation Broach manufacturing method
US4850253A (en) * 1987-07-24 1989-07-25 Colonial Tool Operations Division Of Textron Canada Limited Broach manufacturing method
US5224804A (en) * 1991-11-25 1993-07-06 Ford Motor Company Tooling system and method for broaching engine components

Also Published As

Publication number Publication date
CA2089244A1 (en) 1994-04-28
GB2271949B (en) 1996-01-03
ITRM930262A0 (it) 1993-04-26
FR2697186A1 (fr) 1994-04-29
ITRM930262A1 (it) 1994-10-26
DE4328272A1 (de) 1994-04-28
GB9306372D0 (en) 1993-05-19
JPH06143024A (ja) 1994-05-24
GB2271949A (en) 1994-05-04

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970423