EP0554629B1 - Machine de rodage par expansion - Google Patents
Machine de rodage par expansion Download PDFInfo
- Publication number
- EP0554629B1 EP0554629B1 EP19920400309 EP92400309A EP0554629B1 EP 0554629 B1 EP0554629 B1 EP 0554629B1 EP 19920400309 EP19920400309 EP 19920400309 EP 92400309 A EP92400309 A EP 92400309A EP 0554629 B1 EP0554629 B1 EP 0554629B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spindle
- expansion
- lapping
- lap
- movement
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000003534 oscillatory effect Effects 0.000 claims description 6
- 230000010349 pulsation Effects 0.000 claims 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Images
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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
-
- 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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/10—Accessories
- B24B33/105—Honing spindles; Devices for expanding the honing elements
Definitions
- the present invention relates to a machine lapping of surrounding bores a spindle carrying a lapping tool or expansion lapping, this spindle being mounted mobile in rotation and mobile in axial translation in a spindle head, means for controlling the expansion of said lap, means for controlling the rotation of the spindle, and beat control means for animating the spindle an oscillatory movement of axial translation (said beat movement).
- the lapping spindle On expansion lapping machines known from this type, the lapping spindle carries, at its free end, at least one abrasive or lapping tool, expansion during machining is controlled by a head expansion which can for example be mounted on the pin in one place. away from the lap.
- This head includes a control motor for each lap expansion whose movement is transmitted to the lap by mechanical transmission.
- a expansion control mounted on the head housing of expansion attacks a push rod known as a dagger by via an irreversible reducer comprising a worm gear meshing with the external teeth a ring whose internal thread is engaged with a screw whose axial movement, in response to rotation to the motor, causes a corresponding axial displacement of the dagger, which leads to an expansion of the lapping.
- the beat control does not act directly on the spindle, but on the spindle head which is movable in translation (movement beating) with respect to the headstock and in which the spindle is mounted mobile in rotation, thereby increasing the mass of inertia of the participating assembly to the beat movement.
- the present invention relates to a device for lapping of the type defined above which is of structure modular, allowing a good adaptation of the machine for different work to be executed, simpler in structure than machines known, and on which the inertia of the elements participating in the movements of spindle beat is reduced so optimal.
- Bore lapping machine as claimed includes a spindle carrying a lapping tool or lapping expansion, this spindle being mounted mobile in rotation and mobile in axial translation in a spindle head, means for lapping expansion control, control means for rotation of the spindle and of the beat control means for animate the spindle with an oscillatory movement in axial translation called movement of beat.
- the spindle head does not participate in the flapping movement and constitutes a lapping head by expansion bearing guide means for its movable mounting in translation axial on a fixed frame, for the approach and removal of the lapping the part to be lapped, the lapping expansion control means, the means for controlling the spindle rotation and the means for spindle beat control, the control means of beat act directly on the spindle, and the means of expansion control include a head-mounted motor spindle holder and coupled by a key system with an element of mobile transmission in axial translation in the spindle for control the expansion of the lap.
- the head of lapping forms a single sub-assembly which can be mounted movable horizontally or vertically on a frame and which can be equipped, as required, with a control mechanical, electric or hydraulic beat, with a beat stroke adapted to the work to be performed.
- the approach and withdrawal command can also be chosen at will and in particular with a race significantly greater approach and withdrawal than according to known machines.
- Expansion control means integrated into the spindle head do not participate in the movement of beating of the spindle, thereby reducing the inertia of the assembly performing the flapping movement.
- the lapping unit according to Figure 1 is part a lapping machine by expanding bores of parts, such as automotive parts (connecting rods, pinions, differential boxes, etc. ), distributors hydraulic and other mechanical elements requiring very high geometric precision.
- expansion laps are well known and therefore there is no instead of describing their structure in more detail in the part of this application.
- the expansion movement of the stone train abrasive 5 during running-in is controlled by a head expansion (motor 9) integrated into a spindle head 6 which surrounds pin 1 at the top.
- the oscillatory rotation and translational movement of spindle 1 is transmitted to lapping 4 by a transmission flexible 8, for example a double cardan transmission, located between the spindle head 6 and the lapping 4.
- the expansion head integrated into the spindle head 6 comprises, for the control of expansion of the lapping 4, a expansion control motor 9, for example a motor electric.
- the spindle head 6 with the control of beat 3 and the rotation control 2 therein fixed, as with pin 1, is movable in axial translation thanks to guide rails not shown sliding on the fixed part 10 of a carriage guide 11, fixed on the upright or frame 12 of the lapping machine.
- the motor 9 of the expansion control integrated into the spindle head 6 drives a worm not visible in the drawing, which meshes with the external toothing of a mounted ring 14 mobile in rotation but immobilized in axial translation between the casing 15 of the head 6 and a sheath 16.
- the ring 14 transmits its rotational movement to a ring 17 by means of two keys 18.
- the ring 17 has an internal thread engaged with a screw 19 movable in axial translation. Ring 17 is immobilized in axial translation on the spindle 1 by a nut 20.
- Pin 1 is rotatably mounted inside the spindle head 6.
- the spindle 1 passes through the head 6 in the form of a tubular section 21 provided with a slot transverse transverse 22.
- Inside the section tubular 21 of spindle 1 is arranged concentrically a transmission element 23.
- This transmission element transmission 23 is movable in axial translation in the pin 1.
- the transmission element 23 has at its upper end a transverse head 24 whose two ends pass through the slot 22 of pin 1 and are mounted in the screw 19 by means of two stops 25 so that element 23 is integral in axial translation with the screw 19, but can turn relative to the latter.
- the transmission element 23 is fixed in connection with pin 1, but movable in axial translation relative to the latter.
- Her axial position is controlled by the control motor d ⁇ expansion 9, via transmission irreversible including the worm (not shown), the ring 14, the ring 17 and the screw 19.
- the screw 19 is immobilized in rotation by a key 26 which passes through a slot 27 formed in the casing 15 of the head 6.
- the rotational movement of spindle 1 is ensured by rotation command 2.
- This rotation command includes a rotation motor 28 driving a pulley 29 which drives, by means of a belt 31, a pulley 30 secured to a sheath 32 movable in rotation and immobilized in axial translation between a fixed stop 33 and a nut 34.
- the sleeve 32 transmits its rotational movement to spindle 1 by two keys 35.
- the oscillatory movement of axial translation (beat) of spindle 1 is provided by a command for beat 3 constituted, in the example shown, by mechanical control.
- the beat command 3 includes a drive motor 36 which, by via a belt transmission 37, drives a crank pin 38 with adjustable eccentricity coupled by a connecting rod 39 with the upper end (section tubular 21) of spindle 1.
- Spindle 1 is mounted in rotation by two bearings 40 in the upper part of the spindle holder head 6 (sleeve 33) and by a bearing 41 in the lower part (sheath 16).
- the spindle 1 is guided in axial translation by the sleeve 32 in the upper part of the spindle head 6, and by the sliding bearing 42 in the part lower.
- the spindle head 6 filled with lubricant is sealed with a seal 43 mounted on a seal holder 44.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
Claims (4)
- Machine de rodage d'alésages comprenant une broche (1) portant un outil de rodage ou rodoir à expansion (4), cette broche (1) étant montée mobile en rotation et mobile en translation axiale dans une tête porte-broche (6), des moyens de commande d'expansion (9) du rodoir (4), des moyens de commande de rotation (2) de la broche (1) et des moyens de commande de battement (3) pour animer la broche (1) d'un mouvement oscillatoire en translation axiale dit mouvement de battement, caractérisée par le fait que la tête porte-broche (6) ne participe pas au mouvement de battement et constitue une tête de rodage par expansion portant des moyens de guidage pour son montage mobile en translation axiale sur un bâti fixe (12) en vue de l'approche et du retrait du rodoir (4) de la pièce à roder, les moyens de commande d'expansion (9) du rodoir (4), les moyens de commande de rotation (2) de la broche (1) et les moyens de commande de battement (3) de la broche (1), que les moyens de commande de battement (3) agissent direct ment sur la broche (1), et que les moyens de commande d'expansion (9) comprennent un moteur monté sur la tête porte-broche (6) et couplé par un système à clavettes (18) avec un élément de transmission (23) mobile en translation axiale dans la broche (1) pour commander l'expansion du rodoir (4).
- Machine suivant la revendication 1, caractérisée par le fait que les moyens de commande de rotation (2) de la broche (1) comprennent, entre le moteur de commande de rotation (28) fixé à la tête porte-broche (6) et la broche (1), un système à clavettes (35) ou un système analogue de transmission de rotation à mobilité axiale.
- Machine suivant la revendication 1 ou 2, caractérisée par le fait que le mouvement de translation axiale de la tête porte-broche (6) par rapport au bâti (12) en vue de l 'approche et du retrait du rodoir (4) de la pièce à usiner est commandé par un moteur (13) monté sur le bâti fixe (12).
- Machine suivant la revendication 3, caractérisée par le fait que la tête porte-broche (6) peut être montée sur le bâti (12) de manière qu'elle constitue une unité de rodage par expansion pouvant travailler verticalement ou horizontalement.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9010261A FR2665659B1 (fr) | 1990-08-10 | 1990-08-10 | Machine de rodage par expansion. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0554629A1 EP0554629A1 (fr) | 1993-08-11 |
| EP0554629B1 true EP0554629B1 (fr) | 1999-01-13 |
Family
ID=9399618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19920400309 Expired - Lifetime EP0554629B1 (fr) | 1990-08-10 | 1992-02-07 | Machine de rodage par expansion |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0554629B1 (fr) |
| DE (1) | DE69228175T2 (fr) |
| ES (1) | ES2125252T3 (fr) |
| FR (1) | FR2665659B1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2322317A (en) * | 1997-02-24 | 1998-08-26 | American Machine & Tool Compan | Oscillatory motion device for a drill press |
| DE102010002019A1 (de) | 2010-02-17 | 2011-08-18 | MAG IAS GmbH, 73033 | Werkzeugmaschine und Verfahren zum Bearbeiten eines Werkstücks |
| CN101890674A (zh) * | 2010-03-23 | 2010-11-24 | 扬州冶金机械有限公司 | 一种立式单立柱悬臂式大孔径珩磨机 |
| CN111390501B (zh) * | 2020-03-26 | 2022-05-20 | 杭州正强传动股份有限公司 | 一种eps节叉耳孔珩磨加工工艺 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE578133C (de) * | 1931-07-25 | 1933-06-10 | Kellenberger & Co L | Maschine zum Feinschleifen von Innenzylinderflaechen mittels zylinderfuellender (radial verstellbarer) Werkzeuge, bei der die senkrechte Schleifspindel bzw. der Support um eine senkrechte Saeule schwingbar und in der Hoehe verstellbar ist |
| FR848441A (fr) * | 1938-01-05 | 1939-10-30 | Maschf Augsburg Nuernberg Ag | Dispositif de finissage d'alésages longs |
| US2354347A (en) * | 1941-06-04 | 1944-07-25 | Singer Mfg Co | Lapping machine |
| JPS61288971A (ja) * | 1985-06-12 | 1986-12-19 | Toyo:Kk | 精密仕上ホ−ニング盤 |
-
1990
- 1990-08-10 FR FR9010261A patent/FR2665659B1/fr not_active Expired - Fee Related
-
1992
- 1992-02-07 DE DE1992628175 patent/DE69228175T2/de not_active Expired - Fee Related
- 1992-02-07 ES ES92400309T patent/ES2125252T3/es not_active Expired - Lifetime
- 1992-02-07 EP EP19920400309 patent/EP0554629B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69228175T2 (de) | 1999-09-16 |
| EP0554629A1 (fr) | 1993-08-11 |
| DE69228175D1 (de) | 1999-02-25 |
| FR2665659A1 (fr) | 1992-02-14 |
| ES2125252T3 (es) | 1999-03-01 |
| FR2665659B1 (fr) | 1995-05-19 |
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