EP1712331A1 - Einstellbare Werkstückauflage - Google Patents

Einstellbare Werkstückauflage Download PDF

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Publication number
EP1712331A1
EP1712331A1 EP05405296A EP05405296A EP1712331A1 EP 1712331 A1 EP1712331 A1 EP 1712331A1 EP 05405296 A EP05405296 A EP 05405296A EP 05405296 A EP05405296 A EP 05405296A EP 1712331 A1 EP1712331 A1 EP 1712331A1
Authority
EP
European Patent Office
Prior art keywords
frame
support member
assembly
rigid
vee
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.)
Withdrawn
Application number
EP05405296A
Other languages
English (en)
French (fr)
Inventor
René BÜTSCHI
Pierre Pahud
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.)
Rollomatic SA
Original Assignee
Rollomatic SA
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 Rollomatic SA filed Critical Rollomatic SA
Priority to EP05405296A priority Critical patent/EP1712331A1/de
Priority to TW095111328A priority patent/TW200642798A/zh
Priority to JP2008505712A priority patent/JP2008535674A/ja
Priority to DE602006007841T priority patent/DE602006007841D1/de
Priority to PCT/CH2006/000209 priority patent/WO2006108316A1/fr
Priority to EP06721911A priority patent/EP1885521B1/de
Priority to KR1020077026547A priority patent/KR20080002966A/ko
Priority to CN2006800199288A priority patent/CN101189098B/zh
Publication of EP1712331A1 publication Critical patent/EP1712331A1/de
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a bearing device equipping, in a grinding machine, a machining station for cylindrical rods, including stepped cylindrical rods, having a large ratio length to diameter.
  • the problem of the precise positioning and maintenance of the workpieces carried by the doll or dolls and successively brought before each station is particularly acute when the workpieces are cylindrical rods having a large diameter-to-length ratio, such as small diameter drills.
  • the rotational drive and the axial positioning of the workpiece are provided by a doll, the positioning in the plane perpendicular to the axis of the workpiece is generally performed by a first support member V e associated with a body flat that traps the body of the room and a second support member V e which is open and supports the end of the room.
  • This second V e must be positioned in such a way that the end of the part which it supports is absolutely aligned with that which is fixed in the first V e. This requires very precise adjustment devices so far generally achieved by means of rails and levers as well as complicated locking means.
  • the present invention proposes a support device of new design, able to support the thin part of the parts with the safety and the high precision which are required, while allowing easy adjustments and whose realization is possible by reliable methods.
  • the object of the present invention relates to a support device equipping, in a grinding machine, a machining station for cylindrical rods, in particular stepped cylindrical rods, having a large length to diameter ratio, this device, comprising a base, a first support member secured to the base, a second support member for supporting the end portion of one of said cylindrical rods in machining position and adjustable connection means between the base and the second member of support, this device being characterized in that said means constitute an assembly of several components each providing one of three functions, namely a translation function, a rotation function in a first reference plane and a rotation function in a second reference plane, this assembly acting on the second support member.
  • the first support member is a closed Vee support member and in that the second support member is an open Vee support member.
  • said adjustable means comprise four independent control members, two of which move the translationally open Ve in two perpendicular directions in the plane perpendicular to the axis of the closed V e and the other two the move in rotation around the center of the open V, the two axes of rotation being perpendicular to each other in a plane perpendicular to the axis of the closed Vee.
  • the device is formed of three main components each comprising a one-piece assembly with several rigid parts connected by thin and elastically deformable parts, one of said rigid parts having a frame function, each one-piece assembly being machined in one piece in a homogeneous material, by electroerosion.
  • Each of said one-piece assemblies may comprise, in addition to its frame, at least one rigid element acting as a control member, and another rigid element, movable in response to a displacement of the control member or members of the assembly, said assemblies that can be cascaded together, the rigid and movable element of each of them carrying the frame of the next assembly or, for the latter, the open V of the device, and in that the frame of the first assembly forms the base of the device.
  • the frame of the first set can carry the closed V e rigidly fixed on it, the position and the direction of the axis of the stem to be supported being defined by this V e.
  • each component comprises, as main element, a one-piece assembly with a rigid frame designated by 4 for the component 1, by 5 for the component 2 and by 6 for the component 3.
  • the frame 4 of the translation component 1 carries a V-shaped member 7, rigidly fixed in a groove rectangular profile 63, at its upper right corner in Figure 1. This member 7 is intended to support the part of the cylindrical rods to be machined the most. close to the doll that trains him. During the operations this Vé is closed by a plate (not shown) so that the body of the room is trapped and secured against any vibration.
  • FIG. 1 further distinguishes four control members 8, 9, 10, 11, the arrangement and functions of which will be described below, and an open V-shaped element 12 whose axis coincides with the axis of the notch of the Vee 7 and whose positioning of high precision is precisely achieved by the device described.
  • FIG. 2 Figures 2, 3 and 4 are graphical operating diagrams.
  • the anchorages shown in these figures represent the frames 4, 5 and 6 of FIG. 1.
  • two links 13, 14 connect to the frame 4 a rigid intermediate element 15 on which, by a articulated rod 16, a lever which pivots on an anchorage in the frame 4.
  • This lever is designated by the numeral 8 and represents the first of the control members already named in FIG. 1. It is controlled by action on its arrow and acts with a suitable reduction on the element 15 by moving it in translation from top to bottom or from bottom to top in a vertical plane, guided by the links 13 and 14.
  • the element 15 transmits its movement by rods 18 and 19 to a mobile and rigid element 20 forming part of the component 1.
  • a rigid intermediate element 21 is connected by two rods 22 and 23, symmetrical of the rods 13 and 14, to two anchors in the frame 4, furthermore by two rods 24, 25 to the element 20, and a link 26 to a lever bearing the number 9 in Figure 1 and constituting a control member that moves the element 20 in horizontal translation.
  • the vertical displacements are transmitted to the element 20 by the element 15 and the rods 18, 19, and the horizontal displacements are by the intermediate element 21 and the rods 24 and 25.
  • the V e closed and fixed designated 7 in Figure 1 is shown secured to one of the anchors 4 in Figure 2.
  • FIG. 3 is a graphic diagram of the operation of the component 2.
  • the anchors 5 symbolize the frame of this component 2 on which are articulated two links 27, 28 connecting to this frame a rigid and movable element 29, and a lever 10 image lever 1.
  • a link 30 transmits with appropriate gearing the movements of the control lever 10 to the member 29.
  • the element 29 and the articulation points of the rods are set so that the displacement of the lever 10 moves the element 29 around a rotation center C1 whose exact positioning will appear later.
  • FIG. 4 a third graphic diagram (FIG. 4) illustrates the operation of the component 3.
  • the control lever 11, articulated on an anchorage of the frame 6, transmits its rotational movements, also with a duly studied gearing, by a rod 31, to a rigid and movable element 32 which also pivots on the frame 6.
  • FIG. 4 the figure 12 designating in Figure 1 the adjustable open Vé of the device has been reported in Figure 4.
  • the line representing the axis of this V cuts perpendicularly l the axis of the articulation of the element 32 on the frame 6.
  • the adjustable Vé will be integral with the element 32, which the control member 11 rotates around the point C2.
  • the two points C1 and C2 will in fact be confused in the assembled device as will be seen later.
  • the frame 6 of the component 3 is integral with the rigid element 29 of the component 2 and if the frame 5 of this component 2 is itself integral with the rigid and movable element 20 of the component 1, the 8, 9, 10 and 11 make it possible to impose on the element 12 vertical and horizontal translations and rotations along two perpendicular axes around the fixed point C2 of the articulation of the element 32 on the frame 6 and this independently and in the order desired.
  • the one-piece assembly of the component 1 is shown in FIG. 5. It is formed (as are also the one-piece assemblies 2 and 3) from a solid part made of a perfectly homogeneous steel.
  • This quadrangular flat plate-shaped piece will first be machined around its periphery by conventional means such as milling to determine the outline of the frame 4, after which various holes will be made to allow the fine machining of the active elements through the passage of a wire in the holes and the EDM machining of the limitations between the various elements of all.
  • These operations delimit thin zones in the shape of goosenecks or profiled slats continuously connected to massive and rigid regions that divide the assembly into different regions capable of performing the functions described in relation to FIG.
  • the one-piece assembly of the component 2 is shown in FIG. 6. It has been explained previously how the various constituents of the one-piece assemblies are formed by electroerosion. It is not necessary to return to it.
  • the one-piece assembly comprises the U-shaped frame 5.
  • a movable rigid element, acting as the element 29 of FIG. 3, is connected by two thin zones. sections 27 and 28 in the frame 5, these thin zones acting as rods of the same reference number in FIG. 3.
  • the conformation of these gooseneck zones is defined in such a way that any displacement of the element 29 with respect to in the frame 5 is in fact a rotation about an axis perpendicular to the plane of the one-piece assembly and passing through the point C1 (FIGS. 3 and 6.
  • Two other cuts in the frame 5 delimit the element in the form of a lever 10, two flexible strips 41 and 42, profiled in goosenecks and determining an axis of rotation of the lever 10 around a point, for small displacements, on the point of intersection of the lamellae 41 and 42, and an elongate zone 30 connecting the lever 10 to the movable member 29 and acting as the rod with the same reference number in Figure 3.
  • the ratio between the total length of the lever 10 and the distance between the connection of the rod 30 and the point pivoting lever 10 defines the gear ratio between the displacements, in this case the rotations, imposed on the element 29 and the lever 10.
  • the element 29 has in its outer contour two bearing surfaces 43 and 44, perpendicular to each other. one to the other, and between them a groove with a rectangular profile 45 whose role will appear later.
  • FIG. 7 shows the integral element of the component 3 with its returned G-shaped frame 6, the control lever 11 and the mobile and rigid element 32.
  • the pivoting system of the lever 11 comprises two short and perpendicular lamellae. 46 to 47 with a gooseneck profile as for the pivoting of the lever 10, while the rigid element 32 is constrained to a pure pivoting movement by the gooseneck slats 48 and 49. This movement is transmitted to the element 32 from the lever 11 by a profiled gooseneck slat designated 31 and acting as the rod of the same reference numeral in FIG. 4.
  • the element 32 has a plane lateral outer surface 50 connected to the plane of the figure by a chamfer and limited towards its lower end by a projecting portion 51.
  • the rigid and movable element 29 of the one-piece assembly of component 2 has previously been described and indicated that it comprises perpendicular faces 43 and 44 as well as a groove 45. On face 44 and in groove 45 engages the rear amount of the frame 6. It is fixed by a screw 56 whose head is embedded in an opening of sufficient diameter in the rear post of the frame 5. The stem of this screw opens into the groove 45 and enters a threaded blind hole of the frame 6. The groove 45 and the flat face 44 provide guiding and positioning of the frame 6 on the element 29. It has also been indicated how the rigid and movable element 32 is integrated with the monobloc assembly of the component 3. On this element is mounted an intermediate stud 57 provided with a lower tongue 58 pierced with a hole 59.
  • This stud is placed on the upper surface of the movable member 32, the rear face of the tongue 58 being applied against the face 50 of element 32 (fi Figure 8).
  • the threaded rod of a screw 60 passing through the hole 59 and, engaging the hole 61 of the element 32, fixes the stud 57 on this element 32.
  • a nipple 62 formed in the stud 57 is thus placed approximately in front of the groove 63 of the frame 4.
  • each of the levers 8, 9, 10 and 11 is controlled by two screws such as the screws 65 and 66 shown for the components 2 and 3. It can be seen that each of the frames 4, 5, 6 comprises, in its portion at each of the control levers, two openings 67, 68, one of which is oblong and the other threaded. These openings are in each case in the vicinity of the free end of the lever 8, 9, 10 or 11 to be controlled. Opposite each opening 67 the control lever has a threaded hole fitted to the screws 66 so that each of the latter can be secured to the arrow of a lever, its head being in abutment against the edge of the opening 67.
  • the screws 65 screwed into the openings 68 act in thrust against the side of the lever to be controlled so that they block it in the exact position desired.
  • the Vee member 12 can be moved in two translation movements and two rotational movements so that its axis is exactly aligned on the axis.
  • This operation can also be carried out in any other suitable manner, such as for example using a cone or an eccentric.
  • the device can be set off machine under optical magnifying device to achieve the maximum accuracy.
  • the support device according to the invention made using deformable components with high gear ratios, makes it possible to obtain four adjustments. independent of very high resolutions with very high accuracy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
EP05405296A 2005-04-15 2005-04-15 Einstellbare Werkstückauflage Withdrawn EP1712331A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP05405296A EP1712331A1 (de) 2005-04-15 2005-04-15 Einstellbare Werkstückauflage
TW095111328A TW200642798A (en) 2005-04-15 2006-03-30 An adjustable rest device
JP2008505712A JP2008535674A (ja) 2005-04-15 2006-04-12 調整可能なレスト装置
DE602006007841T DE602006007841D1 (de) 2005-04-15 2006-04-12 Verstellbare stützvorrichtung
PCT/CH2006/000209 WO2006108316A1 (fr) 2005-04-15 2006-04-12 Dispositif d'appui reglable
EP06721911A EP1885521B1 (de) 2005-04-15 2006-04-12 Verstellbare stützvorrichtung
KR1020077026547A KR20080002966A (ko) 2005-04-15 2006-04-12 조절 가능한 지지 장치
CN2006800199288A CN101189098B (zh) 2005-04-15 2006-04-12 可调节支撑装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05405296A EP1712331A1 (de) 2005-04-15 2005-04-15 Einstellbare Werkstückauflage

Publications (1)

Publication Number Publication Date
EP1712331A1 true EP1712331A1 (de) 2006-10-18

Family

ID=34942966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05405296A Withdrawn EP1712331A1 (de) 2005-04-15 2005-04-15 Einstellbare Werkstückauflage

Country Status (1)

Country Link
EP (1) EP1712331A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176160A (zh) * 2018-10-17 2019-01-11 江西洪都航空工业集团有限责任公司 一种精密阶梯轴外圆磨削加工工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299915A1 (de) * 1987-07-15 1989-01-18 SAFAG AG Maschinen- und Pumpenfabrik Verfahren zum Bearbeiten von Werkstücken und Einrichtung zur Durchführung dieses Verfahrens
US20020020069A1 (en) * 1999-12-22 2002-02-21 Stefano Bottinelli Movement transmission unit and movement transmission apparatus employing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299915A1 (de) * 1987-07-15 1989-01-18 SAFAG AG Maschinen- und Pumpenfabrik Verfahren zum Bearbeiten von Werkstücken und Einrichtung zur Durchführung dieses Verfahrens
US20020020069A1 (en) * 1999-12-22 2002-02-21 Stefano Bottinelli Movement transmission unit and movement transmission apparatus employing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176160A (zh) * 2018-10-17 2019-01-11 江西洪都航空工业集团有限责任公司 一种精密阶梯轴外圆磨削加工工艺
CN109176160B (zh) * 2018-10-17 2020-11-06 江西洪都航空工业集团有限责任公司 一种精密阶梯轴外圆磨削加工工艺

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