FR2457742A1 - Engine cylinder head positioning device - is for valve seat regrinding and uses double oscillation to measure and correct parallelism errors - Google Patents

Engine cylinder head positioning device - is for valve seat regrinding and uses double oscillation to measure and correct parallelism errors

Info

Publication number
FR2457742A1
FR2457742A1 FR7915052A FR7915052A FR2457742A1 FR 2457742 A1 FR2457742 A1 FR 2457742A1 FR 7915052 A FR7915052 A FR 7915052A FR 7915052 A FR7915052 A FR 7915052A FR 2457742 A1 FR2457742 A1 FR 2457742A1
Authority
FR
France
Prior art keywords
cylinder head
valve seat
regrinding
measure
positioning device
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
FR7915052A
Other languages
French (fr)
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.)
MILLON MACHINES OUTILS
Original Assignee
MILLON MACHINES OUTILS
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 MILLON MACHINES OUTILS filed Critical MILLON MACHINES OUTILS
Priority to FR7915052A priority Critical patent/FR2457742A1/en
Publication of FR2457742A1 publication Critical patent/FR2457742A1/en
Pending 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
    • B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
    • B24B15/02—Machines or devices designed for grinding seat surfaces; Accessories therefor in valve housings
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The device comprises a cylinder head support carried by the frame (1) of the grinding machine, which can be moved in a plane perpendicular to the axis of the grinding spindle for self-centring between the latter and the valve guide A double oscillation about two orthogonal axes (28,29) is imparted to the cylinder head, with sensors (23,24) measuring the parallelism errors between the axis of the grinding spindle and a peg introduced into the valve seat. These measured errors are used to provide position corrections to obtain parallelism with the cylinder head then locked in position. The position correction circuit may comprise amplifiers coupled to two pairs of sensors and to a display panel which indicates the required corrections from front to back and left to right.
FR7915052A 1979-06-01 1979-06-01 Engine cylinder head positioning device - is for valve seat regrinding and uses double oscillation to measure and correct parallelism errors Pending FR2457742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7915052A FR2457742A1 (en) 1979-06-01 1979-06-01 Engine cylinder head positioning device - is for valve seat regrinding and uses double oscillation to measure and correct parallelism errors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7915052A FR2457742A1 (en) 1979-06-01 1979-06-01 Engine cylinder head positioning device - is for valve seat regrinding and uses double oscillation to measure and correct parallelism errors

Publications (1)

Publication Number Publication Date
FR2457742A1 true FR2457742A1 (en) 1980-12-26

Family

ID=9226500

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915052A Pending FR2457742A1 (en) 1979-06-01 1979-06-01 Engine cylinder head positioning device - is for valve seat regrinding and uses double oscillation to measure and correct parallelism errors

Country Status (1)

Country Link
FR (1) FR2457742A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501094A1 (en) * 1981-03-07 1982-09-10 Honda Motor Co Ltd METHOD AND MACHINE FOR MACHINING A VALVE SEAT WITH PRECISE ROD ALIGNMENT IN RELATION TO BORNING
US5170678A (en) * 1990-04-30 1992-12-15 Walter W. Wawrzyniak Index table assembly
DE4221166A1 (en) * 1992-06-27 1994-01-05 Heidenhain Gmbh Dr Johannes Adjustment appts. for positioning spindle w.r.t. workpiece carrying machine table - has coupling element for connecting spindle to cross-table with distance measurement devices for at last two coordinate directions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501094A1 (en) * 1981-03-07 1982-09-10 Honda Motor Co Ltd METHOD AND MACHINE FOR MACHINING A VALVE SEAT WITH PRECISE ROD ALIGNMENT IN RELATION TO BORNING
US5170678A (en) * 1990-04-30 1992-12-15 Walter W. Wawrzyniak Index table assembly
DE4221166A1 (en) * 1992-06-27 1994-01-05 Heidenhain Gmbh Dr Johannes Adjustment appts. for positioning spindle w.r.t. workpiece carrying machine table - has coupling element for connecting spindle to cross-table with distance measurement devices for at last two coordinate directions
DE4221166C2 (en) * 1992-06-27 1998-02-12 Heidenhain Gmbh Dr Johannes Adjustment device

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