FR2317999A1 - Machine fixing cylinder heads to engine blocks - has strain gauges and stepping motors which automatically control spindles for correct tension - Google Patents
Machine fixing cylinder heads to engine blocks - has strain gauges and stepping motors which automatically control spindles for correct tensionInfo
- Publication number
- FR2317999A1 FR2317999A1 FR7522085A FR7522085A FR2317999A1 FR 2317999 A1 FR2317999 A1 FR 2317999A1 FR 7522085 A FR7522085 A FR 7522085A FR 7522085 A FR7522085 A FR 7522085A FR 2317999 A1 FR2317999 A1 FR 2317999A1
- Authority
- FR
- France
- Prior art keywords
- strain gauges
- automatically control
- spindles
- stepping motors
- fixing cylinder
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/065—Arrangements for torque limiters or torque indicators in screw or nut setting machines
- B23P19/066—Arrangements for torque limiters or torque indicators in screw or nut setting machines by electrical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The engine block (M), with cylinder head attached, arrives by overhead conveyor (C) on the machine bed (1). It is adjusted (1a, 1b, 1c) into alignment with the machine head (2), mounted on inclined slideways (3, 4). The head spindles (5) engage (6) over the cylinder head bolts (V) and hydraulic motors (7) loosen these. The same spindles then tighten the bolts to a pre-set initial tension. At this point a predetermined additional angular valve is given to each bolt. Each spindle is controlled by a strain gauge (12) flexible mounted (11) between motor and machine head (8). A stepping motor (14, 15, 16) provides the angular control. These are computed electronically (18) and the block automatically stamped (22), if good.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7522085A FR2317999A1 (en) | 1975-07-15 | 1975-07-15 | Machine fixing cylinder heads to engine blocks - has strain gauges and stepping motors which automatically control spindles for correct tension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7522085A FR2317999A1 (en) | 1975-07-15 | 1975-07-15 | Machine fixing cylinder heads to engine blocks - has strain gauges and stepping motors which automatically control spindles for correct tension |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2317999A1 true FR2317999A1 (en) | 1977-02-11 |
FR2317999B1 FR2317999B1 (en) | 1981-04-17 |
Family
ID=9157918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7522085A Granted FR2317999A1 (en) | 1975-07-15 | 1975-07-15 | Machine fixing cylinder heads to engine blocks - has strain gauges and stepping motors which automatically control spindles for correct tension |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2317999A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458359A1 (en) * | 1979-06-13 | 1981-01-02 | Kloeckner Werke Ag | POSITIONING DEVICE FOR SCREW TIGHTENING APPARATUS FOR OPENING AND CLOSING PRESSURE CONTAINERS |
WO1997020656A1 (en) * | 1995-12-07 | 1997-06-12 | Daimler-Benz Aktiengesellschaft | Method of automatically screwing two components together and a locking screw and union nut for use in applying said method |
US5837907A (en) * | 1995-11-24 | 1998-11-17 | Fujikin Incorporated | Method of tightening threaded members |
EP0879670A1 (en) * | 1995-11-24 | 1998-11-25 | Tadahiro Ohmi | Tightening device |
FR2887166A1 (en) * | 2005-06-15 | 2006-12-22 | Renault Sas | Locking procedure for screw driven by automatic tool used in motor vehicle assembly includes initial, final locking and validation stages |
-
1975
- 1975-07-15 FR FR7522085A patent/FR2317999A1/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458359A1 (en) * | 1979-06-13 | 1981-01-02 | Kloeckner Werke Ag | POSITIONING DEVICE FOR SCREW TIGHTENING APPARATUS FOR OPENING AND CLOSING PRESSURE CONTAINERS |
US5837907A (en) * | 1995-11-24 | 1998-11-17 | Fujikin Incorporated | Method of tightening threaded members |
EP0879670A1 (en) * | 1995-11-24 | 1998-11-25 | Tadahiro Ohmi | Tightening device |
EP0879669A1 (en) * | 1995-11-24 | 1998-11-25 | Tadahiro Ohmi | Method of tightening threaded members |
US6105475A (en) * | 1995-11-24 | 2000-08-22 | Fujikin Incorporated | Tightening device |
WO1997020656A1 (en) * | 1995-12-07 | 1997-06-12 | Daimler-Benz Aktiengesellschaft | Method of automatically screwing two components together and a locking screw and union nut for use in applying said method |
US6233807B1 (en) | 1995-12-07 | 2001-05-22 | Daimlerchrysler Ag | Process for automatically screw-connecting two components |
FR2887166A1 (en) * | 2005-06-15 | 2006-12-22 | Renault Sas | Locking procedure for screw driven by automatic tool used in motor vehicle assembly includes initial, final locking and validation stages |
Also Published As
Publication number | Publication date |
---|---|
FR2317999B1 (en) | 1981-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse |