WO2005003563A1 - スクロール圧縮機とスクロールラップの加工方法 - Google Patents
スクロール圧縮機とスクロールラップの加工方法 Download PDFInfo
- Publication number
- WO2005003563A1 WO2005003563A1 PCT/JP2003/013635 JP0313635W WO2005003563A1 WO 2005003563 A1 WO2005003563 A1 WO 2005003563A1 JP 0313635 W JP0313635 W JP 0313635W WO 2005003563 A1 WO2005003563 A1 WO 2005003563A1
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- WO
- WIPO (PCT)
- Prior art keywords
- scroll
- processing
- wrap
- rotating tool
- laps
- Prior art date
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Classifications
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- 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
-
- 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
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
- Y10T29/4924—Scroll or peristaltic type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/50—Planing
- Y10T409/50082—Process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/50—Planing
- Y10T409/5041—Means for cutting arcuate surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/10—Process of turning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/13—Pattern section
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/14—Axial pattern
- Y10T82/149—Profiled cutter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2512—Lathe having facing tool fed transverse to work
Definitions
- the present invention relates to a scroll compressor used for refrigeration, an air conditioner, and the like, and a method of processing a scroll wrap.
- the scroll compressor mainly has the structure shown in Figs.
- the fixed scroll (hereinafter referred to as “scroll") 5 2 and the orbiting scroll (hereinafter referred to as “scroll”) 5 3 have a shape in which scroll-shaped wraps 50 and 51 rise from the end plates 52 A and 53 A at substantially right angles, respectively. .
- the scrolls 52 and 53 are combined with each other to form a compression chamber 54 between the wraps 50 and 51. Then, due to the circular orbital movement of the scroll 53, the compression chamber 54 moves from the outer peripheral side communicating with the suction port 55 to the center part communicating with the discharge port 56, and reduces the volume while moving. Discharge is performed.
- the scrolls 52 and 53 are made of an iron-based or aluminum-based metal material. After these are formed by molding or the like, the sliding sides of the wraps 50 and 51 are finished by cutting using an end mill 57 having 2 to 10 cutting blades. In this way, the required performance is ensured.
- a method for finishing a scroll wrap having an impulse curve shape by an end mill is disclosed in Japanese Patent Application Laid-Open No. H04-284509, Japanese Patent Application Laid-Open No. H07-164231, Japanese Patent Laid-Open No. 200 It is disclosed in Japanese Patent Publication No. 0 — 205510. According to these, the feed speed of the end mill is controlled according to the radius of curvature of the impure curve. Either of these methods ensures the surface roughness of the machined surface.
- the accuracy of the side walls of the laps 50 and 51 in the cutting process by the end mill 57 of the conventional laps 50 and 51 is as follows. It depends not only on the processing accuracy of the mill 57 but also on the run-out and the processing conditions due to the mounting error of the end mill 57. For this reason, it is difficult to maintain and maintain good accuracy in a stable manner, and the surface roughness is rough. In order to prevent the leakage of compressed gas by reducing the gap between the side surfaces when the scrolls 52 and 53 are engaged, it is necessary to improve the dimensional accuracy of the side surfaces.
- the end plates 52 A and 53 A are also cut by the end mill 57 together with the side surface processing of the wraps 50 and 51, so that the surface roughness is large. It is sharp. For this reason, sliding loss and leakage loss of compressed gas occur, and the efficiency of the compressor is not sufficient, and it tends to decrease over time.
- the end mill 57 is generally rotated at a rotational speed of 20,000 or less in order to suppress the wear of the cutting edge. Therefore, it is necessary to increase the feed amount per rotation in order to secure the processing efficiency. In this way, periodic machining unevenness due to the portion with and without the cutting edge of the end mill 57 occurs at a pitch proportional to the small number of cutting edges. In addition, a periodic run-out occurs due to a mounting error of the end mill 57, and these cause longitudinal undulation on the side surfaces of the wraps 50 and 51. Due to this undulation, a small vibration is generated in the scroll 53 during the operation of the compressor, and the noise is increased.
- the scroll compressor according to the present invention has a fixed scroll and an orbiting scroll, and has a scroll-shaped rotor that rises from each end plate of each scroll.
- the compression chambers are formed between the nips.
- the orbital movement of the orbiting scroll causes the compression chamber to move from the outer peripheral side communicating with the suction port to the center part communicating with the discharge port, reduce the volume, and perform suction, compression and discharge of the flowing fluid.
- At least one side of each lap that slides has a processing mark parallel to the end plate. This surface is the cutting surface with a non-rotating tool.
- the shape of the wrap side surface in the direction perpendicular to the end plate is a non-rotational shape that has been knurled.
- FIG. 1 is a vertical sectional view of a fixed scroll and an orbiting scroll of a scroll compressor according to Embodiment 1 of the present invention.
- FIG. 2A is a longitudinal sectional view showing a method of processing the fixed scroll of the compressor according to Embodiment 1 of the present invention.
- FIG. 2B is a cross-sectional view showing a state of swelling in the wrap longitudinal direction of the compressor according to Embodiment 1 of the present invention.
- FIG. 2C is a perspective view showing a state of processing marks following the wrap longitudinal direction of the compressor according to Embodiment 1 of the present invention.
- FIG. 3A is a schematic cross-sectional view showing a method for processing the fixed scroll of the compressor according to Embodiment 1 of the present invention.
- FIG. 3B is a view of the halting tool, which is a non-rotating tool to which the wrap side surface of the compressor is added according to Embodiment 1 of the present invention, viewed from three directions.
- FIG. 4A is a schematic diagram showing the surface roughness in the case of performing the hale processing in Embodiment 1 of the present invention.
- FIG. 4B is a schematic diagram showing the surface roughness when end milling is performed as a conventional technique.
- FIG. 5 is a schematic cross-sectional view showing a method for processing a fixed scroll of a compressor according to Embodiment 2 of the present invention.
- FIG. 6 is a schematic cross-sectional view showing a method for processing a fixed scroll of a compressor according to Embodiment 3 of the present invention.
- FIG. 7 shows a fixed scroll of a compressor according to Embodiment 4 of the present invention. It is a schematic cross section which shows a processing method.
- FIG. 8 is a schematic cross-sectional view showing a method for processing a fixed scroll of a compressor according to Embodiment 5 of the present invention.
- FIG. 9 is a schematic cross-sectional view illustrating a method for processing a fixed scroll of a compressor according to Embodiment 6 of the present invention.
- FIG. 10 is a schematic cross-sectional view showing a method for processing a fixed scroll of a compressor according to Embodiment 7 of the present invention.
- FIG. 11 is a cross-sectional view showing the overall configuration of the hermetic scroll compressor according to each embodiment of the present invention.
- FIG. 12 is a cross-sectional view of a fixed scroll and an orbiting scroll showing a conventional scroll compressor and a processing method thereof.
- FIG. 13 is a longitudinal sectional view of the fixed scroll and the orbiting scroll of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- the fixed scroll (hereinafter referred to as “scroll”) 1 and the orbiting scroll (hereinafter referred to as “scroll”) 2 are defined as scroll-shaped wraps 1 B and 2 B, respectively, rising almost perpendicularly from the end plates 1 A and 2 A. Have.
- the scrolls 1 and 2 are wrapped together with the wraps 1 B and 2 B to form a compression chamber 3 therebetween. Then, the volume of the compression chamber 3 is reduced while moving from the outer peripheral side communicating with the suction port 4 to the center part communicating with the discharge port 5 by the circular orbital movement of the scroll 2.
- the scroll compressor (hereinafter, compressor) 6 sucks, compresses, and discharges the fluid.
- the compressor 6 includes an electric motor 8 for driving the scroll 2 in a closed container 7. They are housed together and form a maintenance-free compressor for air conditioning. Therefore, the fluid that performs suction, compression, and discharge is refrigerant.
- the present invention is not limited to this, but forms a compression chamber by combining a fixed scroll having a scroll-shaped wrap and an orbiting scroll, and sucks, compresses, and discharges fluid by the orbital motion of the orbiting scroll. It is effective if it performs the following.
- the type of fluid handled is not particularly limited.
- the stator 8 A of the electric motor 8 is fixed to the inner periphery of the sealed container 7, and the corresponding rotor 8 B of the electric motor 8 is fixed to the crankshaft 16 driving the scroll 2 of the compressor 6.
- the main bearing member 18 and the auxiliary bearing member 20 fixed to the inner periphery of the closed casing 7 rotatably support the crankshaft 16.
- the horizontal bearing type is shown, so that the main bearing member 18 and the sub bearing member 20 support the crankshaft 16. However, it may be supported at one point in a vertical type or the like.
- the lower part of the hermetically sealed container 7 is a lubricating oil reservoir 17.
- the scroll 1 is attached to the main bearing member 18 by porting or the like.
- An Oldham coupling 19 is provided between the scroll 2 and the main bearing member 18 to prevent the scroll 2 from rotating and perform only a turning motion, that is, a circular orbital motion.
- a revolving shaft 25 provided on the back of the scroll 2 for revolving drive is inserted into an eccentric bearing 26 inside a journal shaft 16 A formed at one end of the crankshaft 16.
- the scroll 2 makes a circular orbital movement via the eccentric bearing 26 and the orbiting shaft '25.
- the auxiliary bearing member 20 is provided with an oil supply mechanism 27 at the end of the crankshaft 16, and an oil suction pipe 27 A is immersed in the lubricating oil reservoir 17.
- an oil feed passage 28 is formed in the crankshaft 16.
- the crankshaft 16 drives the lubrication mechanism 27, and the oil suction pipe 27 A sucks the lubricating oil in the lubricating oil reservoir 17.
- the lubricating oil is discharged into the airtight container 7, and passes through the gap between the motor 8 and the airtight container 7 so that the oil suction pipe 27 Return to A.
- Ma The refrigerant sucked from the suction pipe 29 by the compressor 6 is compressed in the compression chamber 3, passes through the discharge port 5, and is discharged to the outside of the closed vessel 7 through the discharge pipe 30 provided in the closed vessel 7. .
- the compressor 6 of the present embodiment in particular, at least one of the sliding sides 1C and 2D of each of the wraps 1B and 2B and at least one of the sides 1D and 2C Consists of a cut surface that has been haled.
- the sides 1C and 1D of the wrap 1B of the scroll 1 are shown in Figs. 2A, 3A and 3B. It is haled with the non-rotating tool 9 shown in Fig. 1.
- the non-rotating tool 9 shown in FIGS. 3A and 3B is a hail tool, and the cutting is progressed relatively to the workpiece in a posture in which the rake face is substantially perpendicular to the direction of cutting.
- Other processing steps are not particularly limited. That is, a metal material such as iron or aluminum may be formed into a basic shape by fabrication or the like, cut by an end mill, and then beveled by a non-rotating tool 9 to finish. Cutting by an end mill may be omitted.
- Fig. 2B shows the side surface 1C and 1D of the wrap 1B of the scroll 1 being processed with a lip, and the side 2C and 2D of the scroll 2 being processed with an end mill without finishing with a hail finish.
- the side surfaces 1C and 1D have no undulation in the longitudinal direction, or if any, the undulation is extremely small as compared with the side surfaces 2C and 2D. In grinding with an end mill, the processing conditions change periodically with and without the blade.
- the surface by the hale processing is fine. Therefore, between sides 1C and 2D and between sides 1D and 2C, respectively If one of the laps 1B and 2B is haled, there will be no gap between the two wraps 1B and 2B so that the compressed gas leaks over the entire sliding portion in the rising direction. Therefore, such a leakage of the compressed gas is prevented, and the compression efficiency is improved.
- the scroll 2 performs circular orbital operation without micro-vibration during operation, so that a quieter scroll compressor can be obtained in which the operating noise is higher than before. Wear is also reduced.
- the surface roughness is 2 m in the case of end milling, whereas the surface roughness in the case of finishing with a hole as shown in Fig. 4A is halved to 1.
- the peak of the surface roughness in the case of the hail processing is higher than the peak of the surface roughness in the case of the end mill processing.
- both C and 2D and both the side surfaces 1D and 2C are formed as knurled surfaces.
- the length L of the non-rotating tool 9 is preferably larger than the rising height H of the wraps 1B and 2B for hailing the side surface.
- the non-rotating tool 9 can be applied to the entire range of the rising height H of the wraps 1B and 2B at a time. Therefore, if the non-rotating tool 9 is moved in the longitudinal direction of the wraps 1 B and 2 B for the hale processing, the scroll shape on the side surface to be subjected to the hale processing can be finished at a stroke. This eliminates the need for labor and adjustments such as performing cutting in a plurality of times, resulting in high machining accuracy, reduced machining time, and an inexpensive scroll compressor.
- the non-rotating tool 9 performs a finishing machining operation in which the non-rotating tool 9 is not moved in the direction of the tool center axis 12.
- FIG. 2C microscopic irregularities are formed in the rising direction of the wraps IB and 2B perpendicular to the end plates 1A and 2A. That is, along the direction of relative movement between the non-rotating tool 9 and the side surfaces of the wraps 1 B and 2 B to be haled, the processing marks 31 are formed continuously in the longitudinal direction of the wraps 1 B and 2 B. Is done.
- Such processing marks 31 suppress the undulation in the longitudinal direction of the wrap on the side surfaces of the wraps 1B and 2B that are processed by the edge processing, to be extremely small.
- the scroll 2 performs a revolving motion, that is, a circular orbital motion without causing a slight vibration between the scroll 1 and the scroll 1, and a scroll compressor with lower noise can be obtained.
- Such machining marks 31 are often obtained by transferring the shape of the side cutting edge of the non-rotating tool 9. Therefore, if the side cutting edge of the non-rotating tool 9 is shaped by manufacturing the cutting edge, the processing mark 31 can be formed as desired.
- the features of such a hail processing are sufficient
- it is necessary to set the finishing allowance by the hale processing so that the influence of the condition of the underground ground does not remain, regardless of the processing method of the base on the hail processing surface. Further, it is preferable that the set finishing allowance is processed by one hale processing as described above.
- FIG. 5 is a schematic cross-sectional view showing a method for processing a fixed scroll according to Embodiment 2 of the present invention.
- the shape of the side cutting edge of the non-rotating tool 9 is managed by cutting edge grinding as necessary.
- the wrap 1B and the like are processed so that the shape thereof is transferred in the rising direction of the side surfaces 1C and 1D of the fixed scroll 1 to be haled, that is, in a direction perpendicular to the end plate 1A.
- This makes it possible to easily and stably form the optimum shape when heat and pressure are applied during operation, reduce leakage of compressed gas during operation, and increase the efficiency of the scroll compressor. Is obtained.
- the above-mentioned processing marks 3 1 can also be achieved by cutting with a grindstone, etc. in addition to the hale processing with the non-rotating tool 9, and regardless of the processing method, wraps 1 B and 2 B according to the state of the processing marks 3 1 The effect of reducing the undulation in the longitudinal direction is exhibited.
- FIG. 6 is a schematic cross-sectional view showing a method of processing a fixed scroll according to Embodiment 3 of the present invention.
- the corner portion 1E at the boundary between the side surfaces 1C and 1D of the wrap 1B of the fixed scroll 1 and the end plate 1A is formed as a curved surface.
- FIG. 7 is a schematic cross-sectional view showing a method for processing a fixed scroll according to Embodiment 4 of the present invention.
- the fixed scroll 1 to be ground is fixed on the chucking table 42 by the chucking device 41.
- the fixed scroll 1 is fixed by chucking from at least two locations by the chucking members 43.
- only the cutting allowance is cut by the end mill 44, and a predetermined uniform cut surface is obtained from the state of the foundation by the structure or the like.
- the non-rotating tool 9 is used to perform the hail while maintaining the chucking state at the time of machining by the end mill 44.
- the finishing allowance 70 in the hale processing by the non-rotating tool 9 is reduced to about 0.01 mm, the remaining of the pre-processed surface 45, which is the base ground by the end mill 44, can be eliminated. it can. Therefore, high quality parts can be obtained.
- lap 1 B usually adopts a complex shape such as an impute. For this reason, once the chucking device 41 is separated from the chucking device 41 before the finishing process, a center shift or an angle shift occurs.If the finishing allowance 70 is smaller than about 0.05 mm, the pre-processed surface 45 remains. The quality will be poor.
- the finishing allowance 70 becomes uniform, and the load on the non-rotating tool 9 is stabilized, so that the processing accuracy is stabilized. Ma
- the finishing allowance 70 is very small, the load on the non-rotating tool 9 is reduced, and the life of the non-rotating tool 9 is extended. Therefore, a high-quality, low-cost scroll compressor can be obtained.
- the fixed scroll 1 has been described, but the present invention is similarly effective when applied to the orbiting scroll 2.
- FIG. 8 is a schematic cross-sectional view showing a method of processing a fixed scroll according to Embodiment 5 of the present invention.
- the side surfaces 1C and ID of the wrap 1B in the fixed scroll 1 and the surface of the end plate 1A are simultaneously halted by the non-rotating tool 9 and finished.
- the bottom of the non-rotating tool 9 has a minute curved surface corresponding to a corner portion 1E formed at a boundary between the side surfaces 1C and 1D of the wrap 1B and the end plate 1A. For this reason, since the corner portion 1E is formed on a minute curved surface, the strength of the wrap 1B is improved. Therefore, a highly reliable scroll compressor can be obtained.
- the fixed scroll 1 has been described, but the present invention is similarly effective when applied to the orbiting scroll 2.
- FIG. 9 is a schematic cross-sectional view showing a method of processing a fixed scroll according to Embodiment 6 of the present invention.
- the side surfaces 1C and 1D of the wrap 1B and the surface 1F of the end plate 1A in the fixed scroll 1 are separated by the same non-rotating tool 9 as shown by a solid line and an imaginary line. Hale finishing is performed in the process.
- the machined surface of the non-rotating tool 9 has two cutting surfaces, the side cutting edge 9B for the wrap 1B and the tip surface cutting edge 9C on the end plate 1A side, which perform machining at different times. It is divided into processing surfaces. For this reason, although the two surfaces are processed by one non-rotating tool 9, the load at the time of processing is not easily accumulated, and the life of the non-rotating tool 9 is extended.
- FIG. 10 is a schematic cross-sectional view showing a method of processing a fixed scroll according to Embodiment 7 of the present invention.
- the wrap 1B of the fixed scroll 1 is subjected to the hail finishing, first, as shown by the solid line, the inner side 1C is first worked. Thereafter, as shown by the two-dot chain line, the outer side surface 1D is machined by the same non-rotating tool 9 as shown in FIG.
- the same non-rotating tool 9 can be used to finish both the inner surface and the outer surface in an optimum scroll shape while maintaining the same chucking state as in the fourth embodiment. Therefore, a scroll compressor with high efficiency can be obtained.
- the undulation of the longitudinal direction by the hale process cannot be performed on the side surface of a wrap, or is small.
- the surface is fine-grained by the hale processing. For this reason, leakage of the compressed gas between the sliding sides of the fixed scroll and the orbiting scroll wrap is prevented, and the compression efficiency is improved.
- the surface is smooth, so that the orbiting scroll can run in a circular orbit without micro-vibration during operation. For this reason, a scroll compressor with quieter operation noise than before can be obtained.
- machining is performed with a non-rotating tool, Since the need for a rotating spindle device is eliminated, plant driving costs and equipment purchase costs can be reduced, and the production cost of scroll compressors can be reduced.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Applications Or Details Of Rotary Compressors (AREA)
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/562,446 US7540726B2 (en) | 2003-07-01 | 2003-10-24 | Scroll compressor and method for machining scroll wrap |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-189350 | 2003-07-01 | ||
JP2003189350A JP2005023817A (ja) | 2003-07-01 | 2003-07-01 | スクロール圧縮機およびスクロールラップの加工方法 |
Publications (1)
Publication Number | Publication Date |
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WO2005003563A1 true WO2005003563A1 (ja) | 2005-01-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/013635 WO2005003563A1 (ja) | 2003-07-01 | 2003-10-24 | スクロール圧縮機とスクロールラップの加工方法 |
Country Status (5)
Country | Link |
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US (1) | US7540726B2 (ja) |
JP (1) | JP2005023817A (ja) |
KR (1) | KR100777530B1 (ja) |
CN (1) | CN1802508A (ja) |
WO (1) | WO2005003563A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4301315B2 (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 |
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 |
JP4493704B2 (ja) | 2008-06-20 | 2010-06-30 | ダイキン工業株式会社 | 金型及び成形体製造方法 |
JP5592838B2 (ja) * | 2011-06-13 | 2014-09-17 | サンデン株式会社 | 流体機械 |
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CN104128645B (zh) * | 2013-11-13 | 2016-11-02 | 柳州易舟汽车空调有限公司 | 动涡旋盘的加工方法 |
JP6599099B2 (ja) | 2014-12-15 | 2019-10-30 | 三菱重工サーマルシステムズ株式会社 | スクロール流体機械 |
US9890784B2 (en) * | 2015-06-30 | 2018-02-13 | Bitzer Kuehlmaschinenbau Gmbh | Cast-in offset fixed scroll intake opening |
CN106466715A (zh) | 2015-08-14 | 2017-03-01 | 丹佛斯(天津)有限公司 | 加工涡旋的方法和涡旋加工装置 |
WO2017212527A1 (ja) * | 2016-06-06 | 2017-12-14 | 三菱電機株式会社 | スクロール圧縮機 |
CN110537022B (zh) * | 2017-04-26 | 2022-02-18 | 三菱电机株式会社 | 涡旋压缩机的制造方法 |
CN113202748B (zh) * | 2020-01-31 | 2023-04-07 | 翰昂汽车零部件有限公司 | 涡旋压缩机、切削工具及涡旋盘制造方法 |
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- 2003-10-24 WO PCT/JP2003/013635 patent/WO2005003563A1/ja active Application Filing
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US7540726B2 (en) | 2009-06-02 |
US20060159580A1 (en) | 2006-07-20 |
CN1802508A (zh) | 2006-07-12 |
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