EP0359798A1 - Procede d'usinage d'elements spirales - Google Patents

Procede d'usinage d'elements spirales

Info

Publication number
EP0359798A1
EP0359798A1 EP89903053A EP89903053A EP0359798A1 EP 0359798 A1 EP0359798 A1 EP 0359798A1 EP 89903053 A EP89903053 A EP 89903053A EP 89903053 A EP89903053 A EP 89903053A EP 0359798 A1 EP0359798 A1 EP 0359798A1
Authority
EP
European Patent Office
Prior art keywords
wrap
tool
scroll
spiral
base circle
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Withdrawn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
EP89903053A
Other languages
German (de)
English (en)
Inventor
Arthur Ernest Bishop
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0359798A1 publication Critical patent/EP0359798A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
    • B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
    • B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/02—Milling surfaces of revolution
    • B23C3/04—Milling surfaces of revolution while revolving the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D37/00—Broaching machines or broaching devices
    • B23D37/22—Broaching machines or broaching devices for special purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D5/00—Planing or slotting machines cutting otherwise than by relative movement of the tool and workpiece in a straight line
    • B23D5/02—Planing or slotting machines cutting otherwise than by relative movement of the tool and workpiece in a straight line involving rotary and straight-line movements only, e.g. for cutting helical grooves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0269—Details concerning the involute wraps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
    • B23B5/46—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning helical or spiral surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/10—Manufacture by removing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/21—Manufacture essentially without removing material by casting

Definitions

  • This invention relates to scroll type gas compressors, and to a means of manufacturing the components parts of such compressors, which term is to be taken to include pumps.
  • Scroll-type compressors are well known in the art of refrigeration apparatus, air compressors and the like. In some cases such scroll-type devices are used for the expansion of gases rather than compression, and it follows that the invention equally relates to the manufacture of such devices.
  • US patent 4441870 shows a typical device which has two scrolls, each having a circular end-plate and an involute spiral wrap protruding therefrom, longitudinally with respect to an axis normal to the plane of the associated end-plate.
  • the spiral wraps typically have about 2 1/2 to 3 turns.
  • the scrolls are of opposite hand but, when placed face to face, and offset one to the other, the inner and outer surfaces of the spiral wraps contact and slide on each other to define a series of pairs of diametrically opposed chambers whose volume is largest for the most remote from the centre line of the circular end plates and smallest for those adjacent to centre line.
  • the larger chambers become progressively smaller and so compress the gas trapped therebetween.
  • a central hole in one circular end plate allows the compressed gas to escape from the smallest chamber, while fresh charges of gas are entrapped by the outer portions of the scroll wraps in the largest chambers.
  • Such scrolls are generally formed from a single piece of metal, which may typically be of cast iron or aluminium, generally rough-shaped by casting and thereafter milled with an end-milling type cutter.
  • US Patent 4441870 describes the use of the milling cutter of the end-mill type which is caused to move in a spiral path and to simultaneously mill the opposing wrap faces and end-plate face at the bottom of the wraps.
  • the limitations imposed by the use of a milling cutter of the same width as the gap between the spiral wraps are addressed, particularly in regard to the shape of the innermost turn.
  • US Patent 4463591 advocates the use of a coining technique to precisely finish the inside and outside wrap surfaces and the end-plate faces at the bottom of the wraps.
  • the patent seeks to overcome the limitations imposed by the widely used milling technique.
  • a typical end-milling cutter will have 8 or 10 cutting edges and, as it traverses a curved surface, will produce a profile on the wrap faces comprising a series of cusps. All such cutters will, inevitably, have some eccentricity, so that such cusps will undulate every 8th or 10th cusp. Both these features, namely the cusps and the undulations thereof will, in general, be parallel to the longitudinal axis of the scrolls and hence at right angles to the direction of relative sliding therebetween.
  • the contacts between the wrap faces may be likened to those between a shaft and a surrounding journal, and the surface finish of such parts, as in the case of a shaft and journal, is optimum surface irregularities as inevitably occur extend in the direction of sliding and not at right angles thereto, the former situation promoting the entrainment of lubricant between the two surfaces.
  • the present invention consists in a method of finish machining a surface of a preformed multi-turn involute spiral wrap of a scroll type compressor comprising the following steps: - (a) mounting a multi-turn involute spiral wrap in a holding device adapted for rotation;
  • step (e) removing the tool axially from the wrap and bringing it into contact therewith at a point adjacent the first mentioned point and repeating step (d);
  • step (f) repeating step (e) until the whole surface of the wrap is machined to leave a surface finish consisting of a series of smooth and continuous spiral surfaces lying side by side each of limited extension in the direction of the said axis.
  • two separate tools may be arranged to cut opposing sides of the involute wraps in a series of cuts, each cut being displaced along the longitudinal axis with respect to the preceding cut, commencing at the end of the wrap and cutting successively deeper until the root of the wrap is reach, adjacent to the end-plate.
  • Up to 100 cuts will be required, and a specific generating geometry must be employed in order to achieve true involute faces on the sides of the wrap.
  • the scroll pump component will have been rough machined on the wrap faces to within .5 m/m of finish size in a prior operation.
  • the invention further consists in a scroll type gas compressor component consisting of a back plate having thereon a multi-turn involute spiral wrap characterised in that the wrap surfaces have a surface finish comprised of a series of smooth and continuous spiral surfaces lying side by side each being of limited extension in the direction of the axis of the base circle of the involute spiral.
  • the tool is engaged with the wrap for a small depth compared to the depth engagement when the entire surface of the wrap (say 30mm deep) is machined at once as in the case of end-milling, the forces tending to deflect the wrap are greatly reduced (by a factor of 1/150 for the case stated here). Also the surface generated is smooth and continuous in the direction of relative sliding between the wraps, and the cusps produced by end-milling are avoided.
  • the tool or tools must move axially into position to machine the scroll surface (a distance of up to 30mm for the case referred to), in no more than l/8th revolution of the scroll, or in a time interval of 25 milliseconds. Also as the scroll surfaces start and end about half a turn apart the two tools must take up their position sequentially one-half revolution of the spindle part. At the least radius of the scroll the tool machining the outer surface will commence cutting one-half revolution before the tool machining the inner surface starts to cut, and the opposite will apply at the outer end of the scroll. Also the pair of tools should desirably return from the inner position to the outer position or vice versa in the least possible time, e.g. 100 milliseconds.
  • each turning cycle takes about 0.8 seconds, and as 100 cuts are required, the entire wrap machining cycle will take about 80 seconds.
  • a means is provided of machining the tops of the wraps and the bottom faces between the wraps before the scroll component is removed from the machine so achieving a precise relationship between all four surfaces which define the compression chambers. No other machining process achieves this objective.
  • FIG. 1 is a front elevation of a typical fixed scroll component.
  • Fig. 2 is a section on line XX of Fig. 1.
  • Fig. 3 is a front elevation of a typical moving scroll component.
  • Fig. 4 is a section on line XX of Fig. 3.
  • Figs. 5, 6 and 7 are part-sections of a fixed scroll component on various rays at different stages of machining.
  • Fig. 8 shows the milling operation of surfaces 8 and 9 (Fig. 2).
  • Figs. 9, 10 and 11 show machining of the scroll surfaces according to the prior art.
  • Figs. 12, 13 and 14 show machining of the scroll surfaces according to the invention.
  • Fig. 15 shows a schematic view of a machine according to the invention.
  • Figs. 16 and 17 show details of the cam operating mechanism of Fig. 15. ' PREFERRED EMBODIMENTS OF THE INVENTION
  • Figs. 1 and 2 show the front elevation and section on XX of the fixed scroll of a scroll pump made according to the invention. It comprises circular end-plate 2 having axis 3 having formed integral with the circular end-plate a continuous spiral wrap 4.
  • the spiral of wrap 4 comprises two involute surfaces generated from base circle 5 located on axis 3.
  • the origin of the involute curve of the outer spiral surface 6 lies on axis YY as indicated at z.
  • the inner spiral surface is shown as 7.
  • the wraps terminate axially at their outer ends at surface 8 and at their inner ends at surfaces 6a and 7a which are geometrically similar but of opposite hand to those of fixed scroll shown in Figs. 1 and 2 when viewed towards the wraps.
  • This invention deals only with the method of manufacture of the working surfaces of the fixed and moving scrolls, all reference to the journalling, gas and lubricant passages etc. which are addressed in many other patents will be omitted. Only those surfaces which are affected uniquely by the machining process will be described.
  • the involute surfaces of wrap faces 6 and 7 are machined by two tools 11 and 12 respectively, while the scroll is rotated in a clockwise direction.
  • the tools are mounted on a slideway and are arranged so that their cutting edges, or points 13 and 14 respectively, move radially inwardly along lines tangent to base circle 5, which lines will be referred to as rays.
  • the travel of tool points 13 and 14 are equal to 2llr0 where r is the radius of base circle 5, and 0 is the angle of rotation of the scroll.
  • point z where 0 equals 0, is the point of origin of the involute.
  • the involute surface of inner surface 7 lies at a lesser distance from the point of tangency an amount equal to the desired thickness of wrap 4.
  • surfaces 6, 7, 8 and 9 Prior to commencing the finish machining operation, surfaces 6, 7, 8 and 9 will have been rough machined, precision cast or otherwise formed leaving an appropriate amount, say 0.3 to 0.8m/m for finish machining. Certain other preparatory machining may also be required as will be described later.
  • FIGs. 2, 5, 6 and 7 show successive positions of tools 11 and 12 as though the scroll was fixed and the pair of tools rotated anti-clockwise, and simultaneously moved along the respective rays. These rays are shown in Fig. 2 as a, b, c, d, e, f, g, h, i, each tangent to base circle 5.
  • the machining cycle commences when tool 11, which machines the outer wrap surface 6, lines on ray 1 and commences to move axially and radially outwardly.
  • the tools are shown in dotted outline when they are retracted and clear of the scroll. After rotation of about 30 degrees (ray b), this tool reaches a position as shown at lib, Fig. 1, where the first involute spiral cut commences.
  • tool 12 will have completed its path along wrap face 7 and starts its retract motion while tool 11 is axially stationary and clear of face 8 as at llh. Both tools are clear of the scroll surface 8 at ray i as shown in Fig. 5 and commence rapidly returning to the centre of the scroll so as to commence re-entry of the scroll at ray a.
  • a pocket will be required to provide for entry of the tools, particularly for tool positions 12d and 12e, where the tool must rapidly move axially to take up its position during rotation of about 30 degrees. Clearance recess 17 is provided for this purpose. The high rate of retraction of the tools is particularly important where the full depth is reached as in Fig. 7.
  • Figs. 9 to 14 the process of milling the side faces of the wraps are compared with the single point generation and face milling process according to the invention.
  • Figs 9 and 10 show a typical 8 fluted end milling cutter which mills one side of wrap 4 and the bottom face 9. The finish produced by such a cutter is shown in Fig. 11, and will be characterized by having a series of cusps on which is superimposed undulations corresponding to each rotation of a cutter, due to the eccentricity thereof.
  • Figs. 12, 13 and 14 show, by way of comparison, the involute generating process according to the invention.
  • the surface finish produced by the process is illustrated in Fig. 14, and consists of a series of involute lines parallel to the end face 9.
  • the machining of fixed and moving scrolls 2 and 2a is carried out, according to the invention, on the machine shown in Fig. 15.
  • the scroll component is held by chuck means 20 mounted on spindle 21 carried in journals 22 and 23 supported on machine base 24.
  • Spindle 21 is rotated by worm wheel 25 driven by worm 26 carried by shaft 27 which rotates in journals (not shown) carried by machine base 24.
  • Shaft 27 is rotated by motor 28 secured to a bracket 29 also mounted on machine base 24.
  • Shaft 27 is extended to carry worm 28 which drives worm wheel 29 secured to lay shaft 30, which is journalled on a bracket 31 protruding from machine base 24.
  • Lay shaft 30 incorporates spline 32 which slides axially in the internally splined end of shaft 33 which is journalled in bracket 34 and incorporates bevel gear 35 which drives bevel gear 36 mounted on stub shaft 27.
  • Spindle 21 extends rearwardly to carry master cam 38 having a scroll recess 39 cut into one face, and a scroll of the opposite hand cut in the reverse face (not shown) .
  • cam follower 40 mounted on lever 41 secured to rocking and sliding shaft 42, which is journalled to the machine base 24 at journals 43 and 44.
  • Rocking and sliding shaft 42 has, at the front end of the machine, lever 45, which serves to control movements of tools slideway 46.
  • Tools 11 and 12 protrude forwardly towards the scroll, and are mounted on toolslides 47 and 48 which are carried on precision slideways in tool box 49 which is rigidly mounted to tool slideway 465.
  • toolslides 47 and 48 The entire function of toolslides 47 and 48 is to provide for the rapid advance and retract of tools 11 and 12 as required by their engagement with the scroll during the machining operation. In every case their forwardmost position is the same with respect to tools slideway 46 or tool box 49, and the end position is controlled by an accurate stop (not shown).
  • the depth of the machining cut performed by tools 11 and 12 is controlled by the axial position of main slideway 50 which is moved along the slideway 51 of machine base 24 by lead screw 52 driven by numerically controlled electric motor 53.
  • Main slideway 50 has attached to it bracket 34 which provides a journal for shaft 33 and also a mounting for stub shaft 37.
  • stub shaft 37, bevel gear 36, bevel pinion 35 and shaft 33 all move axially, i.e. in the direction of the axis of spindle 21, upon longitudinal motion of main slideway 50.
  • shafts 54 and 55 each of which rotate through a limited angle as determined by a cam track 56 incorporated in the face of bevel gear 36.
  • shaft 54 extends and is journalled in bracket 57 which forms part of bracket 34 attached to main slideway 50.
  • Shaft 55 is also journalled in bracket 57.
  • Shafts 54 and 55 at their outer extension, carry bell-crank levers 58 and 59 respectively having integral therewith pins engaging cam track 56.
  • cam track 56 comprises a segment of small radius as at 60 and a segment of large radius as at 61 being joined by two steeply-sloping ramps. As bevel gear 36 rotates in a clockwise direction it follows that the events determined by cam track 56 will occur first on shaft 54 and subsequently on shaft 55.
  • tool slideway 46 will require that shafts 54 and 55 incorporate axially sliding splines, in that bell crank levers 58 and 59 are fixed axially, whereas the sections of the shafts 54 and 55 shown in Fig. 15 are required to move with travel of the slideway 46.
  • lever 45 it will be seen that its cylindrical end 64 engages a slot in tool slideway 46 so that as rocking motion occurs of rocking and sliding shaft 42 is caused to travel in a manner determined by master cam 38 and lever 41. It will be seen that a second notch 66 is provided in the underside of tool slideway 46 the function of which will be later described.
  • rocking and sliding shaft 42 carries at its remote end both lever 41, shift lever 67, and retract lever 68, all of which are secured rotationally and axially to rocking and sliding shaft 42. Details of the functions of this mechanism are illustrated in Figs. 16 and 17. ' Here it will be seen that cam 38 has on its forward face scroll recess 39 and, as mentioned earlier, on its reverse face scroll recess 69 of the opposite hand. Both scroll recesses terminate at their inner and outer ends respectively in recesses of constant radius as indicated at 70 and 71 respectively.
  • Retract lever 68 in Fig.
  • cam follower 74 lies clear of the rear face of master cam 38 and therefore is free to move across the face of the cam without engagement in scroll recess 69. This is the situation in Fig. 15 where rocking and sliding shaft 42 together with its respective levers 45, 41, 67 and 68 has just moved rearwardly to carry cam follower 40 into the inner circular section of scroll recess 39 as indicated at 70, and machining of the scroll is about to commence.
  • rocking shaft 42 is moved axially towards the front of the machine carrying cam follower 74 mounted on retract lever 68 into the retract slot 69 in the back face of the master cam.
  • the lever returns to the innermost position illustrated in Fig. 16 whereupon rocking and sliding shaft 42 is moved rearwardly to re-engage cam follower ;46 in scroll recess 39.
  • milling cutter 19 is provided, as shown in Fig. 8 and also in Fig. 15 mounted in milling head 77 carried by tool slideway 46 to the rear of tool box 49. It is driven by a motor or similar means not shown.
  • Tool slideway 46 is provided with a nut not shown which engages ball bearing lead screw 78 driven by numerically controlled electric motor 76 which is secured to the rear end of the main slideway 50.
  • motor 76 spins freely as it is not energized during this phase.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Milling Processes (AREA)
  • Rotary Pumps (AREA)

Abstract

On a mis au point un procédé de finissage de surfaces d'un enroulement spiralé à développante multi-spire préformé, d'un compresseur du type spiralé, dans lequel on fait tourner l'enroulement (4) autour de l'axe (3) du cercle de base (5) de la spirale en développante. On applique un outil coupant à un tranchant sur une des deux faces de l'enroulement (4) et, à mesure que celui-ci tourne, le ou les outils traversent dans un sens tangentiel par rapport au cercle de base (5). Le franchissement du ou des outils par révolution de l'enroulement (4) est égal à la longueur de circonférence du cercle de base (5), de sorte qu'une bande de matière est retirée de l'enroulement (4) sur toute sa longueur. On répète ces étapes jusqu'à ce que la ou les surfaces de l'enroulement (4) soient totalement finies, afin de laisser un fini de surface composée d'une série de surfaces spiralées lisses et continues disposées côte à côte.
EP89903053A 1988-03-11 1989-03-09 Procede d'usinage d'elements spirales Withdrawn EP0359798A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU7207/88 1988-03-11
AUPI720788 1988-03-11

Publications (1)

Publication Number Publication Date
EP0359798A1 true EP0359798A1 (fr) 1990-03-28

Family

ID=3772913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89903053A Withdrawn EP0359798A1 (fr) 1988-03-11 1989-03-09 Procede d'usinage d'elements spirales

Country Status (2)

Country Link
EP (1) EP0359798A1 (fr)
WO (1) WO1989008522A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7293945B2 (en) * 2003-05-08 2007-11-13 Matsushita Electric Industrial Co., Ltd Non-rotary cutting tool and process of machining scroll member by using the same
JP4088570B2 (ja) * 2003-05-08 2008-05-21 松下電器産業株式会社 非回転切削工具
JP2005023817A (ja) * 2003-07-01 2005-01-27 Matsushita Electric Ind Co Ltd スクロール圧縮機およびスクロールラップの加工方法
JP4740842B2 (ja) * 2004-03-26 2011-08-03 株式会社牧野フライス製作所 切削加工方法及び装置
JP4301316B2 (ja) * 2007-03-30 2009-07-22 ダイキン工業株式会社 スクロール部材及びその製造方法、並びに圧縮機構及びスクロール圧縮機
US9199317B2 (en) * 2010-09-07 2015-12-01 Makino Milling Machine Co., Ltd. Scroll machining method and machining unit
CN102218673A (zh) * 2011-05-23 2011-10-19 安宁华创机械制造有限公司 进刀量控制拨盘
DE102014011199A1 (de) * 2014-07-28 2016-01-28 Heinz Deitert Verfahren zur spanabhebenden Fertigung von Vertiefungen in Werkstücken sowie Vorrichtung hierzu

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017959B2 (ja) * 1980-10-09 1985-05-08 サンデン株式会社 スクロ−ル型圧縮機
US4512066A (en) * 1981-03-02 1985-04-23 Arthur D. Little, Inc. Method of fabricating scroll members
JPS58223552A (ja) * 1982-06-16 1983-12-26 Hitachi Ltd スクロ−ル部材の加工方法および加工工具
AU552290B2 (en) * 1982-10-11 1986-05-29 Sanden Corporation Scroll pump
JPS60104788A (ja) * 1983-11-14 1985-06-10 Sanden Corp スクロ−ル型圧縮機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8908522A1 *

Also Published As

Publication number Publication date
WO1989008522A1 (fr) 1989-09-21

Similar Documents

Publication Publication Date Title
JP2550038B2 (ja) 曲がり歯を備えた傘歯車対の歯車の歯の研削方法及びこの方法を実施するための装置
US4635404A (en) Apparatus for machining a spur gear by means of a rotating gearlike tool
US5429021A (en) Elliptical manway cutter
US4058938A (en) Method and apparatus for grinding the tooth flanks of internally-toothed gear wheels
CN107666979B (zh) 用于制造定子或用于加工定子的内壁部的方法
EP0359798A1 (fr) Procede d'usinage d'elements spirales
US3782040A (en) Gear machine
US4615091A (en) Method of and apparatus for processing a scroll member for a scroll type compressor
JP3390003B2 (ja) 車両のパワーステアリング機構の製作に使用する機械
AU605031B2 (en) Method of machining scroll components
US5598618A (en) Mainrotor machining process and apparatus
CN1046025A (zh) 加工涡旋形部件的方法
US2151483A (en) Rotor generating method and machine
JP4456208B2 (ja) スピニング加工装置
JPH03501370A (ja) 渦巻き部材の切削方法
US3812759A (en) Cutting teeth on workpieces
US3595130A (en) Gear making
GB2276575A (en) Producing an integrally bladed rotor
US3618459A (en) Gear making
EP0580801A1 (fr) Procede de taraudage de vis globique
US3618189A (en) Gear making
US4346534A (en) Apparatus for honing cycloidal surfaces
GB2211453A (en) Apparatus and method for machining a trochoidal rotor
US2207438A (en) Gear finishing apparatus
US4034645A (en) Method for manufacturing a gear-wheel for a rotary displacement machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19900209

18W Application withdrawn

Withdrawal date: 19900827

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

R18W Application withdrawn (corrected)

Effective date: 19900827