EP0896856A1 - Werkzeugmaschine insbesondere zum Feinstbearbeiten von zylindrischen, rotationssymmetrischen Oberflächen mittels eines tangential vorbeilaufenden Schleifbands - Google Patents

Werkzeugmaschine insbesondere zum Feinstbearbeiten von zylindrischen, rotationssymmetrischen Oberflächen mittels eines tangential vorbeilaufenden Schleifbands Download PDF

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Publication number
EP0896856A1
EP0896856A1 EP98402018A EP98402018A EP0896856A1 EP 0896856 A1 EP0896856 A1 EP 0896856A1 EP 98402018 A EP98402018 A EP 98402018A EP 98402018 A EP98402018 A EP 98402018A EP 0896856 A1 EP0896856 A1 EP 0896856A1
Authority
EP
European Patent Office
Prior art keywords
rollers
machining
assembly
machine according
support
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
Application number
EP98402018A
Other languages
English (en)
French (fr)
Other versions
EP0896856B1 (de
Inventor
Richard Bonachera
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.)
Procedes et Machines Speciales Ste
Original Assignee
Procedes et Machines Speciales Ste
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Filing date
Publication date
Application filed by Procedes et Machines Speciales Ste filed Critical Procedes et Machines Speciales Ste
Publication of EP0896856A1 publication Critical patent/EP0896856A1/de
Application granted granted Critical
Publication of EP0896856B1 publication Critical patent/EP0896856B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B33/04—Honing machines or devices; Accessories therefor designed for working external surfaces of revolution
    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • B24B47/206—Drives or gearings; Equipment therefor relating to feed movement for centreless grinding machines; for machines comprising work supports, e.g. steady rests
    • 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
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/307—Means for supporting work
    • 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
    • B24B5/35—Accessories
    • B24B5/355—Feeding means

Definitions

  • the present invention relates to a machining machine, in particular of superfinishing, of cylindrical surfaces of pieces of revolution by tangential movement, on the cylindrical surface of at least one part, at at least one machining station, of an abrasive belt which, from an unwinding reel, goes on a support roller before being rewound on a rewinding reel, the part being supported by a pair of spaced parallel rotating support rollers.
  • the known machining machines by abrasive belt with scrolling tangential comprising one or more machining stations stationary and stationary support rollers use, to produce a movement of the workpiece in relation to the support rollers stationary, i.e. a pair of support rollers inclined one by compared to the other (see for example EP-A-495,691), which however gives a non-positive forward movement, i.e. cleats mounted on a chain moving forward, the cleats passing between pairs of parallel rollers.
  • the parts are certainly animated by a positive movement of advancement, but by the fact that the rollers are stationary, the advancement of the parts on the rollers causes a slip, therefore a friction of the parts on the rollers. This can cause the surface finish of the parts to deteriorate.
  • the present invention relates to a machining machine of the defined type above, which ensures a positive feed movement between the parts to machine and the machining station (s), without sliding and therefore without friction of the parts on the support rollers.
  • the machining machine comprises a support assembly on which the parallel support rollers are mounted mobile in rotation around their axes.
  • This machine includes, in addition, a machining assembly comprising one or more stations machining.
  • One of said assemblies is mounted movable in translation parallel to the axes of the support rollers relative to each other together.
  • the machine further comprises means for driving the support rollers rotating about their axes and means for move one of said sets in translation parallel to the axes of the support rollers relative to each other.
  • the mobile assembly can be either the machining assembly carrying the machining unit (s), i.e. the assembly of support carrying the support rollers, the other assembly being stationary.
  • the first variant may in particular have advantages in the case of long workpieces, while the second variant is preferable more particularly for machining parts relatively short.
  • the machine on which the support assembly is movable can advantageously comprise at least one pair of support rollers mounted on a table with a translational movement.
  • the support assembly can advantageously carry, in addition to the support rollers, at least one work positioning means designed to act on the work carried by the pair of rollers to position the part axially by support rollers while allowing its rotation.
  • the or each positioning means is constituted by a rotary cleat participating in the rotational movement that the part undergoing during machining. This removes or at the very least reduces also the sliding therefore the friction of the part on the cleat.
  • the or each positioning means is arranged centrally with respect to the workpiece, i.e. in position median with respect to the two workpiece support rollers.
  • the support rollers are preferably rotated by a motor mounted on the table of the mobile support assembly.
  • the table which can be mounted movable in translation on slides can be advantageously moved in translation by a screw-nut type drive system.
  • the machine can include several stations successive machining in the direction of translation, allowing submit the same part in a row to several operations successive, for example several superfinishing operations with grains of increasing finesse.
  • the machine tool by abrasive belt preferably for superfinishing surfaces cylindrical parts of revolution, includes an elongated frame 1 bearing two parallel longitudinal slides 2, arranged in the same plane horizontal, and a longitudinal screw 3 located between the two slides 2.
  • the screw 3 can be rotated by a geared motor 4.
  • a machining assembly is mounted in a fixed position on the frame 1, above the runners 2, roughly in the middle of the length of these past.
  • Machining assembly 5 includes three units or stations machining 6 succeeding one another in the direction of the length of the slides 2.
  • each machining station 6 includes essentially a coil 7 for unwinding an abrasive belt 8, a reel 9 for rewinding the abrasive belt 8, a support roller 10 on which the abrasive belt 8 passes between the two coils 7 and 9, and a actuator 11 which can be for example a jack for moving down and upwards the support roller 10.
  • Such machining units by tangential movement of a strip abrasive are well known, especially in the field of superfinish. As an example, it is possible to refer to the request EP-A-495691.
  • An assembly 12 is mounted movable in translation on the slides 2.
  • the assembly 12 comprises a rectangular table 13 guided on the runners 2.
  • the table 13 carries on its underside a nut 14 in engagement with screw 3.
  • the table 13 On its upper face, the table 13 carries, by means of bearings 15, two pairs of parallel horizontal rollers 16, at least one roller of each pair being rotated by a motor 17 mounted below table 13.
  • the rollers 16 of each pair are used to support a part 18, the rotation of the rollers 16 causing the rotation of the part 18 resting on these rollers.
  • these means consist of bearings 19 with bearings provided at the axial ends of the rollers 16 and bearing against the rear end of the part 18 during advancement of the latter from left to right in Figures 1 and 2 below the machining assembly 5. Since the cleat advances in synchronism with rollers 16 and door against the rear end face of the part 18, the cylindrical surface of part 18, the superfinish of which is provided by the machining assembly 5, does not undergo any friction with respect to to the rollers 16, which excludes any risk of damage to this area.
  • the cleat 19 is a rolling cleat, a damage to the end face of the part, by friction with the cleat, is also excluded.
  • the cleat 19 is arranged in the middle position by compared to the rollers 16 of the pair of rollers located in front of it.
  • two pairs of rollers 16 are mounted one behind the other on the table 13, to support two pieces to machining which pass successively under the machining assembly 5.
  • a cleat 19 is arranged at the rear end of each pair of rollers 16 and an additional stopper 19 is arranged at the front end of the pair of rollers 16 anterior.
  • the mobile assembly 12 is shown in lines full in the starting position (on the left in the figure) and in phantom in the position after machining (on the right in the figure). It should be noted at this subject that the movable assembly 12 back and forth makes it possible to discharge the parts, either in the loading position shown in solid lines, after return of the mobile assembly 12 in this position, either in the opposite position shown in phantom. In the latter case, the unloading can be done on the same side as the loading or on the opposite side.
  • the machine comprises on a frame 101, a machining assembly 105 movable in translation, and a stationary assembly 112 carrying pairs of rollers 116.
  • the assembly 105 comprising three machining stations 106 successive abrasive belt is movable on slides 102, under the action a screw 103 driven by a geared motor 104.
  • the assembly 112 stationary includes a motor 117 for the rotational drive of support rollers 116.
  • means 119 for positioning which can be of the same type as the cleats 19 of the mode for carrying out FIGS. 1 to 3, can be provided on the assembly 112 to ensure the positioning of the parts relative to the rollers 116, during the machining of the parts by longitudinal translation of the assembly mobile 105 according to the arrow.
  • the machining assembly 5, 105 can include either a single machining station or a more or less number important successive posts in a row.
  • the set 12 or 112 can include a single pair of support rollers 16,116, or also more than two successive pairs of support rollers, depending on the length of workpieces.
  • the means shown for guiding the mobile assembly 5, 112 (slides 2, 102) and for back-and-forth drive of this assembly (screws 3, 103, gearmotor 4, 104, nut 14) can also be replaced by equivalent means filling the same function.
  • the cleats 19 in the middle position between the rollers 16 could be replaced, for example, by means of positioning mounted on the support rollers and rotating with these last.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP98402018A 1997-08-12 1998-08-07 Werkzeugmaschine insbesondere zum Feinstbearbeiten von zylindrischen, rotationssymmetrischen Oberflächen mittels eines tangential vorbeilaufenden Schleifbands Expired - Lifetime EP0896856B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9710299A FR2767275B1 (fr) 1997-08-12 1997-08-12 Machine d'usinage, en particulier de superfinition, de surfaces cylindriques de pieces de revolution, par bande abrasive a defilement tangentiel
FR9710299 1997-08-12

Publications (2)

Publication Number Publication Date
EP0896856A1 true EP0896856A1 (de) 1999-02-17
EP0896856B1 EP0896856B1 (de) 2003-04-02

Family

ID=9510251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98402018A Expired - Lifetime EP0896856B1 (de) 1997-08-12 1998-08-07 Werkzeugmaschine insbesondere zum Feinstbearbeiten von zylindrischen, rotationssymmetrischen Oberflächen mittels eines tangential vorbeilaufenden Schleifbands

Country Status (5)

Country Link
US (1) US6572459B2 (de)
EP (1) EP0896856B1 (de)
DE (1) DE69812795T2 (de)
ES (1) ES2196511T3 (de)
FR (1) FR2767275B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20040101A1 (it) * 2004-05-17 2004-08-17 Delle Vedove Levigatrici Spa Macchina per rifinire un oggetto quale un profilato, un pannello, o simile
DE102006013436B4 (de) * 2006-03-14 2018-10-31 C. & E. Fein Gmbh Bandschleifmaschine zum Außenrundschleifen von Rohren
CN105643403B (zh) * 2016-03-07 2017-11-03 无锡振华机械有限公司 多工件抛光机
CN111971148A (zh) * 2018-03-14 2020-11-20 磨卡有限公司 用于研磨的方法和设备以及产品和所述产品的用途
CN109746799B (zh) * 2019-01-29 2021-06-29 宁波市镇海华磊轴承有限公司 一种s698轴承内外圈加工生产设备及其工艺
CN111496641A (zh) * 2020-04-03 2020-08-07 大连富地重工机械制造有限公司 一种连续棒料磨削装置
CN111673590A (zh) * 2020-06-03 2020-09-18 大连富地重工机械制造有限公司 一种带磨削细长物料打磨装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345308A (en) * 1941-07-17 1944-03-28 Chrysler Corp Lapping apparatus
GB2206299A (en) * 1987-06-25 1989-01-05 Litton Uk Ltd Loading/unloading plunge centreless grinders
EP0495691A1 (de) * 1991-01-11 1992-07-22 Mecaloir Technologies Rundschleifmaschine
US5471796A (en) * 1992-06-12 1995-12-05 Thompson; Gary F. Multi-purpose lathe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345308A (en) * 1941-07-17 1944-03-28 Chrysler Corp Lapping apparatus
GB2206299A (en) * 1987-06-25 1989-01-05 Litton Uk Ltd Loading/unloading plunge centreless grinders
EP0495691A1 (de) * 1991-01-11 1992-07-22 Mecaloir Technologies Rundschleifmaschine
US5471796A (en) * 1992-06-12 1995-12-05 Thompson; Gary F. Multi-purpose lathe

Also Published As

Publication number Publication date
FR2767275A1 (fr) 1999-02-19
DE69812795T2 (de) 2004-02-12
US6572459B2 (en) 2003-06-03
US20010029159A1 (en) 2001-10-11
EP0896856B1 (de) 2003-04-02
ES2196511T3 (es) 2003-12-16
FR2767275B1 (fr) 1999-10-15
DE69812795D1 (de) 2003-05-08

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