CN106041649B - Grinding processing method and grinding attachment - Google Patents
Grinding processing method and grinding attachment Download PDFInfo
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- CN106041649B CN106041649B CN201610132708.1A CN201610132708A CN106041649B CN 106041649 B CN106041649 B CN 106041649B CN 201610132708 A CN201610132708 A CN 201610132708A CN 106041649 B CN106041649 B CN 106041649B
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- grinding wheel
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- main shaft
- grinding
- abrasive grinding
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- 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
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
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- 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
- B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
- B24B11/02—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls
- B24B11/04—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels
- B24B11/06—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels acting by the front faces, e.g. of plane, grooved or bevelled shape
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The present invention provides the grinding processing method and grinding attachment for forming arbitrary continuous small curve form in the thrust face of axis using cylindrical grinder.Grinding processing method according to the present invention uses cylindrical grinder, which has：Main shaft keeps the ground object of barrel shape and makes its rotation；Cylindricalo grinding grinding wheel is ground ground object；And cylindricalo grinding grinding wheel conveying axis, it moves in parallel cylindricalo grinding grinding wheel, in the cylindrical grinder, cylindricalo grinding grinding wheel conveying axis is configured to it with the angle that the rotary shaft of main shaft is intersected be more than 90 ° and at 100 ° hereinafter, the grinding processing method have make the rotary motion of main shaft and reciprocatings motion of cylindricalo grinding grinding wheel it is synchronous and thrust face formed arbitrarily continuously small curve form process.
Description
Technical field
The present invention relates to grinding attachments used in grinding processing method and the method for grinding.
Background technique
As the plane machining method of the shaft-like workpiece (ground object) based on Cylindrical Grinding Processes, there are the following two kinds sides
Method.First method is：Shaft-like workpiece is held in main shaft and is allowed to rotate, makes the outer circle with the rotary shaft parallel with main shaft
The end face portion of abrasive grinding wheel is contacted with workpiece.Also, second method is：Shaft-like workpiece is being held in main shaft and is being allowed to revolve
Turn, contact the end face portion of angular abrasive grinding wheel with workpiece, wherein angular abrasive grinding wheel has to match with the angle that main shaft intersects
The rotary shaft set.There are following situations by the latter, i.e.,：Use the angle for being configured to rotate the angle of the abrasive grinding wheel axis of cylindrical grinder
To capitiform formula cylindrical grinder the case where；And it is angular using being configured to rotate the angle of abrasive grinding wheel conveying axis (X-axis)
The case where grinding machine.
In addition, one kind as cylindrical grinder, the equipment that there is referred to as cam grainder or cam pin grinding machine.It mainly will be convex
The work pieces process of wheel shaft, cam pin, hex-shaped shaft etc. is as emphasis, by making the rotary motion of main shaft rotary shaft (C axis) and outer
The reciprocating motion of circle abrasive grinding wheel conveying axis (X-axis) is synchronous, so as to form arbitrary profile in the periphery of arbitrary workpiece
Shape.As be attached with accurately control two-axis synchronization NC device and can be realized high speed reciprocating motion X-axis conveying
One kind of the cylindrical grinder of the structure of device is also able to carry out common Cylindrical Grinding Processes and cross grinding processing certainly.
In the past, as cooling air conditioner compressor, as disclosed in patent document 1 and 2, by motor and multiple rotations
Turn compressing member to be accommodated in closed container, as the main composition part undertaken from motor to rotary compression element transmitting power
And have crankshaft, which has eccentric part and thrust face, which bears on the direction vertical with the rotary shaft of motor
Load.Above-mentioned crankshaft is processed using cylindrical grinder as described above.
According to rotary compressor disclosed in patent document 1, by the way that a part of the thrust face of crankshaft is formed as recessed
Shape reduces friction loss so as to form oil film.
In addition, being formed by the thrust face in crankshaft non-slip according to reciprocating compressor disclosed Patent Document 2
Face, so as to reduce slippage loss.
Patent document 1：Japanese Unexamined Patent Publication 2011-196372 bulletin
Patent document 2：Japanese Unexamined Patent Publication 2009-085125 bulletin
However, it is previous, when the crankshaft using above-mentioned cylindrical grinder and the main shaft claming compressor in cylindrical grinder, thus
In the case where carrying out Cylindrical Grinding Processes or angular grinding to the thrust face of crankshaft, it can only be formed in thrust face " single
Pure-surface shape ", " convexity flat shape " and " concave flat shape " these three patterns.Or by being by emery wheel dressing
Arbitrary shape is simultaneously transferred to crankshaft, so as to form " circumference groove shape " with the main shaft rotary shaft concentric circles of grinding machine.
But in the case where only grinding machine uses common chuck assembly to foreign round, other thrust face shapes can not be formed.
In addition, when making the rotary shaft of workpiece and main shaft rotary shaft be formed as required by using special chuck assembly
Tilt angle, thus in the case where carrying out Cylindrical Grinding Processes or angular grinding to thrust face, be capable of forming not with song
The rotary shaft of axis is at right angle and relative to its inclined " slope plane shape ".However, due to being formed as the rotary shaft with workpiece
Out-of-alignment shape, so there are problems that the cylindricalo grinding of workpiece outer radius portion can not be carried out under same equipment.Also, by
In needing workpiece rotary shaft and main shaft rotary shaft being configured to required tilt angle, thus lead to the problem of it is as follows, i.e.,：As axis
The keeping method of shape workpiece and be not available general centre bore tail spindle.
In technology disclosed in patent document 1, a part of the thrust face of crankshaft is processed as concavity, but in the processing
When, the process equipment in addition to needing thrust face, it is also necessary to using the other process equipment processed to concave part, thus
There is a problem of generating precision because of the deviations of the workpiece between process bad, and also generates because increasing to equipment, work
The problem of sequence, quality are confirmed and increase manufacturing cost.Even if in order to avoid the above problem by the thrust face of crankshaft
A part utilize the same process equipment to carry out the processing of thrust face and the processing of concave part when being processed as concavity, it is also desirable to make
With cutting processing machines such as the high machining centers of the freedom degree of tool changing or conveying track, pushed away compared with grinding to generate
The problem of surface roughness in power face increases.As a result, compressor can probably generate abrasion or sintering without can be carried out smoothly
Rotation.
In addition, the concavity of thrust face or non-slip portion become with planar portions not in technology disclosed Patent Document 2
Continuous face, thus the formation as oil film necessary to thrust face is caused to be interrupted, it can probably cause unstable song in this way
The vibration of axis and generate abnormal noise.Further, since thrust face is formed as simple plane, so being stirred by sliding friction or oil film
Mechanical loss caused by mixing increases, and I'm afraid the increase and the reduction for generating compressor performance that will lead to that adjoint motor inputs in this way.
Summary of the invention
The present invention is to be formed in order to solve above-mentioned problem, provides the thrust face using cylindrical grinder in axis and is formed
The grinding processing method and grinding attachment of arbitrary continuous small curve form.
Grinding processing method according to the present invention uses cylindrical grinder, which has：Main shaft, holding are ground
It cuts object and makes the ground object rotation；Abrasive grinding wheel is ground above-mentioned ground object；Grinding wheel spindle keeps the grinding
Grinding wheel simultaneously rotates the abrasive grinding wheel；And abrasive grinding wheel conveying axis, make above-mentioned abrasive grinding wheel along relative to the grinding wheel spindle
Central axis direction at right angle is mobile, and above-mentioned main shaft and the respective rotation center of above-mentioned grinding wheel spindle configure in the same plane,
Above-mentioned abrasive grinding wheel conveying axis configures as follows, i.e.,：Make the conveying direction of the abrasive grinding wheel conveying axis and above-mentioned main shaft
Rotary shaft angulation is since the rotary shaft of above-mentioned main shaft clockwise more than 90 ° and in 100 ° of angular range pendulum below
It is dynamic, there is following process in above-mentioned grinding processing method, i.e.,：The above-mentioned ground object of cylindrical shape is held in above-mentioned master
Axis, the face contact for intersecting the rotary shaft of the circular conical surface of the peripheral part of abrasive grinding wheel and the same above-mentioned main shaft of above-mentioned ground object,
To form continuous small curve form in above-mentioned face.
Also, preferably, above-mentioned ground object is axis, which has：Mutually concentric columned long axle portion and short axle
Portion；And eccentric part is formed between the long axle portion and short axle portion to be cylindric, and have relative to above-mentioned long axle portion with
And the center of the off-centring in short axle portion, above-mentioned grinding processing method have using the peripheral part of above-mentioned abrasive grinding wheel to above-mentioned length
The process of the peripheral part of the peripheral part of axle portion and above-mentioned eccentric part progress grinding.
Also, preferably, in the process for forming the continuous small curve form, above-mentioned abrasive grinding wheel conveying axis with
The rotary motion that above-mentioned main shaft rotates a circle cooperatively moves back and forth, which has following amplitude, i.e.,：With with
The identical period in rotary motion period of above-mentioned main shaft or the rotary motion period of above-mentioned main shaft to be split made of
Period, come the amplitude matched with the milled portion of above-mentioned ground object.
Also, preferably, the peripheral part of above-mentioned abrasive grinding wheel has two circular conical surfaces centered on the grinding wheel spindle, and two
The face that a side in a above-mentioned circular conical surface intersects the rotary shaft of the same main shaft of above-mentioned ground object is ground, on two
Another party in circular conical surface is stated to shape in the mode for keeping bus parallel with the rotary shaft of above-mentioned main shaft.
According to the present invention, since the continuous small curve form for being carried out the thrust face of axis using a cylindrical grinder is added
Work so it is bad not generate the precision because of caused by the deviations of the workpiece between process, and can also reduce manufacturing cost.
In addition, so reducing the surface roughness of thrust face, and being made due to the processing for carrying out thrust face by grinding
It forms continuous flat shape, is difficult to be interrupted and inhibits production so as to provide the formation of oil film necessary to thrust face
The component of raw abrasion or sintering.
Detailed description of the invention
Fig. 1 is the top view for indicating the structure of cylindrical grinder involved in embodiment 1.
Fig. 2 is the plane machining method of the shaft-like workpiece carried out using cylindricalo grinding grinding wheel based on existing cylindrical grinder
Figure.
Fig. 3 is the figure for indicating existing cam grainder.
Fig. 4 is the figure for indicating the synchronously control processing method of C axis and Ⅹ axis of existing cam grainder.
Fig. 5 is the enlarged drawing for indicating the contact portion of abrasive grinding wheel and thrust face of the cylindrical grinder of Fig. 1.
Fig. 6 (a) to Fig. 6 (f) is the feelings for indicating to carry out existing thrust face Cylindrical Grinding Processes or angular grinding
The figure of one example of the flat shape under condition.
Fig. 7 (a), Fig. 7 (b) are to indicate the case where carrying out Cylindrical Grinding Processes or angular grinding to existing thrust face
Under flat shape an example figure.
Fig. 8 (a) to Fig. 8 (c) is the feelings for indicating to carry out existing thrust face Cylindrical Grinding Processes or angular grinding
The figure of one example of the flat shape under condition.
Fig. 9 is the figure for indicating the motion track of conveying movement of grinding wheel involved in embodiment 1.
Figure 10 is an example of the movement of the grinding wheel in the manufacturing procedure circulation for indicate thrust face involved in embodiment 1
The figure of son.
Figure 11 is the figure for indicating an example of shape for the thrust face based on process shown in Fig. 10.
Figure 12 (a), Figure 12 (b) are the figures for indicating an example of shape for thrust face involved in embodiment 1.
Figure 13 (a) to Figure 13 (d) is to the sand in cylindrical grinder involved in existing cylindrical grinder and embodiment 1
The figure that the processing lines of wheel is compared with rotational trajectory.
Figure 14 is the figure for indicating the manufacturing procedure of cylindrical grinder involved in embodiment 2.
Figure 15 is to indicate that the plane of the shaft-like workpiece carried out using angular abrasive grinding wheel based on existing cylindrical grinder is added
The figure of engineering method.
Figure 16 is the figure for indicating the cylindrical grinder of existing angular capitiform formula.
Figure 17 is the figure for indicating existing angular angular grinding machine slideably.
Figure 18 (a), Figure 18 (b) are the bias carried out using angular abrasive grinding wheel in the prior art and present embodiment
The explanatory diagram of the variation of proper circle shape when portion processes.
Figure 19 is the longitudinal section view for indicating the structure involved in embodiment 3 using the rotary compressor of crankshaft.
Figure 20 is the cross-sectional view for indicating the mechanism of discharge chambe of rotary compressor involved in embodiment 3.
Figure 21 (a), Figure 21 (b) are the figures for indicating the shape of thrust face of crankshaft involved in embodiment 3.
Figure 22 (a), Figure 22 (b) are the figures for indicating the shape of thrust face of crankshaft involved in embodiment 3.
The explanation of appended drawing reference
1... lathe bed；2...X axis workbench；3...Z axis workbench；4... abrasive grinding wheel conveying device；5...Z axis conveys
Device；6... grinding wheel spindle；6a... rotary shaft；7... grinding wheel drive motor；8... main shaft；9... chuck；9a... rotary shaft；
10... dead head；11... grinding wheel；12... thrust face；13... eccentric part；The center 13a...；14... closed container；15...
Compression mechanical part；16... motor part；17... refrigerator oil；18... fixing piece；19... revolving part；20... crankshaft；20a...
Long axle portion；20b... short axle portion；21... cylinder body；22... upper bearing (metal)；23... lower bearing；24... rotary-piston；25... leaf
Piece；26... leaf spring；29... suction line；30... discharge pipe；50... rotary compressor；100... cylindrical grinder；
200... (existing) cam grainder；300... (angular capitiform formula) cylindrical grinder；400... angular grinding machine；GA... it contacts
Point；GB... contact point.
Specific embodiment
Hereinafter, based on attached drawing, embodiments of the present invention will be described.
Embodiment 1.
[structure of cylindrical grinder 100]
Fig. 1 is the top view for indicating the structure of cylindrical grinder 100 involved in present embodiment.In addition, cylindrical grinder 100
It is equivalent to " grinding attachment " of the present application.
It is illustrated based on structure of the Fig. 1 to cylindrical grinder 100 involved in present embodiment.Constituting cylindrical grinder
The lathe bed 1 of 100 pedestal is configured with：The X-axis workbench 2 and abrasive grinding wheel guide to the conveying (X-axis) of abrasive grinding wheel is defeated
Send device 4；And the Z axis workbench 3 and Z axis conveying device 5 that the conveying (Z axis) of main shaft 8 is guided.On lathe bed 1
Guide surface carries out mobile X-axis workbench 2 and Z axis workbench 3, and servo motor and rolling are equipped with as conveyance drive mechanism
The combination unit or linear motor device of ballscrew.Equipped with grinding wheel spindle 6 and grinding wheel drive motor 7 on X-axis workbench 2.
It is configured with the rotary shaft (C axis) of main shaft 8 on Z axis workbench 3, and is equipped with for being held to workpiece (ground object)
Chuck 9.In addition, for the shaft-like workpiece of long size, by 10 bearing center hole of dead head, so as to realize work
The raising of positioning accuracy when part keeps the increase of rigidity and workpiece to install.Grinding wheel spindle 6 rotary shaft 6a configuration with main shaft 8
In the identical plane of rotary shaft 9a.In addition, being shown as workpiece in Fig. 1 and being enclosed in aftermentioned rotary compressor 50
Crankshaft 20.Crankshaft 20 has：Mutually concentric columned long axle portion 20a and short axle portion 20b；And columned eccentric part
13, eccentric part 13 is formed between long axle portion 20a and short axle portion 20b, and is had relative to long axle portion 20a's and short axle portion 20b
The center 13a of off-centring.
[X-axis and C axis angulation of cylindrical grinder in the prior art]
Fig. 2 is to indicate the plane based on existing cylindrical grinder, the shaft-like workpiece carried out using cylindricalo grinding grinding wheel 11
The figure of processing method.
In common cylindrical grinder, so that X-axis and C axis angulation are formed as the side at as accurate as possible " right angle "
Formula carries out assembling adjustment.As shown in Fig. 2, there are following methods, i.e.,：Workpieces processing is held in the chuck 9 of main shaft 8 and makes to process
Workpiece rotation, and contact the end face portion of cylindricalo grinding grinding wheel with workpieces processing, and in the " work of JIS B 6212 of JIS standard
In inspection condition-accuracy checking of platform mobile model cylindrical grinder and grinding machine of universal ", " Ⅹ axis direction of grinding wheel spindle glabella seat is transported
The permissible value of the squareness that the dynamic Z-direction with workbench saddle moves " is defined as
0.02mm " (with when angular measure be 0.004 °).In addition, " rotation centerline of working-spindle and the Z-direction of workbench move
The depth of parallelism " permissible value be defined as " relative to the length of 300mm, be 0.012mm " (with when angular measure for 0.002 °).
Accordingly, for X-axis and C axis angulation, the two is added thus with angular measure for 90 ± 0.006 °.
Fig. 3 is the figure for indicating existing cam grainder 200.
Fig. 4 is the figure for indicating the synchronously control processing method of C axis and Ⅹ axis of existing cam grainder 200.
In addition, in Fig. 3 and cam grainder shown in Fig. 4 200, also so that angle formed by its X-axis and grinding wheel rotary shaft
The mode that degree is formed as right angle as accurate as possible carries out assembling adjustment.Such as " 6212 workbench of the JIS B shifting in JIS specification
In inspection condition-accuracy checking of ejector half cylindrical grinder and grinding machine of universal ", " movement of Ⅹ axis direction of grinding wheel spindle glabella seat with
The permissible value of the squareness of the Z-direction movement of workbench saddle " is defined as " being 0.02mm " relative to the length of 300mm
(with when angular measure be 0.004 °).In addition, the permission of " depth of parallelism of the Z-direction of grinding wheel shaft centre line and workbench movement "
Value be defined as " relative to the length of 300mm, be 0.03mm " (with when angular measure for 0.006 °).Accordingly, for X-axis and C
The two is added thus with angular measure for 90 ± 0.010 ° by axis angulation.
But in the present embodiment, as shown in Figure 1, X-axis and C axis angulation are configured to more than 90 ° and at 100 °
Below (be subject to since right angle carry out angular measure when, for more than 0 ° and at 10 ° or less).Specifically, in Fig. 1, it is right
In the X-axis configuration orthogonal with C axis, swing the arrangement angles of X-axis workbench 2 in a manner of rotating clockwise to carry out group
Dress, or swing C axis in a manner of rotating counterclockwise to be assembled.
[movement of thrust face grinding]
Fig. 5 is the enlarged drawing of the contact portion of the grinding wheel 11 and thrust face 12 in the cylindrical grinder 100 for indicate Fig. 1.Based on Fig. 5
Grinding wheel 11 and the contact portion of thrust face 12 are illustrated.In flat surface grinding processing, in addition to the special grinding such as vibrating transportation
Except circulation action, the process for making the conveying of grinding wheel 11 stop certain time of referred to as sparking out is eventually passed through, therefore
The shape of grinding wheel 11 is transferred and determines the shape of thrust face 12.Finishing is cooperatively utilized with the shape of required thrust face 12
The end face for the grinding wheel 11 that device pair is contacted with thrust face 12 carries out shaping.In general, plane is formed in thrust face 12.11 shape of grinding wheel
As the shape in outer peripheral surface with two circular conical surfaces, grinding wheel 11 is contacted with 12 line of thrust face of workpiece.At this point, grinding wheel 11 and work
The contact portion (straight line) of the thrust face 12 of part relative to main shaft 8 rotary shaft 9a at right angle.In addition, there is also thrust faces 12 to be added
Work is the situation of shape of convexity, concave, circumferential groove etc..
Fig. 6 (a) to (f), Fig. 7 (a), (b) and Fig. 8 (a) to (c) are to indicate to carry out peripheral milling to existing thrust face 12
Cut the figure of an example of the flat shape in the case where processing or angular grinding.In Fig. 6, as shown in Fig. 6 (a),
In the case where making the simple plane of thrust face 12, as shown in Fig. 6 (b), so that the contact portion phase of grinding wheel 11 and thrust face 12
Shaping is carried out to grinding wheel 11 for the rotary shaft 9a mode at right angle of main shaft 8.In Fig. 6, in as shown in Fig. 6 (c)
In the case where concave shown in convex perhaps Fig. 6 (e) respectively as shown in Fig. 6 (d) or Fig. 6 (f), by grinding wheel 11 and thrust
The contact portion in face 12 is shaped as having required tilt angle relative to the rotary shaft 9a of main shaft 8.
In addition, in Fig. 7 (a), (b), as shown in Fig. 7 (a), in order to form circumference groove shape in thrust face 12, by grinding wheel
11 are set as convex form as shown in Fig. 7 (b).In fig. 8, in order to form slope plane shown in the thrust face 12 of Fig. 8 (a)
Shape and use special chuck, and by the rotation of the central axis of workpiece and main shaft 8 as shown in Fig. 8 (b) and Fig. 8 (c)
Axis 9a is configured to required inclination angle to degree.
Next, the movement processed to the thrust face 12 of shaft-like workpiece is illustrated.It is kept using the chuck 9 in Fig. 1
Shaft-like workpiece (being crankshaft 20 in Fig. 1), carrys out bearing center hole furthermore with dead head 10.Then make C axis rotate and to workpiece
Assign rotary motion.Then it rotates grinding wheel drive motor 7 and assigns the defined rotation speed that grinding wheel 11 is suitable for grinding.Grinding wheel
11 are closely located to by abrasive grinding wheel conveying device 4 and from separate thrust face 12, and are removed with defined conveying speed
The grinding of surplus.The final process using the conveying stopping certain time for making grinding wheel 11 for being referred to as sparking out, from
And the strain of machine Yu grinding wheel 11 is discharged, to keep dimensional accuracy, surface roughness stable or improve.When completing the process, make
Grinding wheel 11 is returned to original position, to terminate a series of movement.
[movement of eccentric grinding]
Although being described to the movement of the thrust face processing of general cylindrical grinder 100, in the present embodiment,
Other than above-mentioned movement, it is combined with the movement of eccentric grinding also to be implemented.
Fig. 9 is the figure for indicating the motion track of conveying movement of the grinding wheel 11 in present embodiment.
The cylindrical grinder 100 of present embodiment be configured to X-axis and C axis angulation be more than 90 ° and at 100 ° hereinafter, because
This assigns the movement that the position XA point for making X-axis as shown in Figure 9 is periodically moved back and forth with XB point to X-axis workbench 2, from
And keep grinding wheel 11 mobile.In addition, it is same with the rotation of C axis for accurately controlling the reciprocating movement period of X-axis using NC device
Step.As described above, C axis and X-axis angulation be more than 90 ° and at 100 ° hereinafter, and in the present embodiment, such as be set as
95°.In addition, C axis be set to Z axis it is parallel.Here, it is contemplated that consider using the axis parallel with C axis as Z1 axis, will be with Z axis
In the case where Z1-X1 orthogonal coordinates of the orthogonal axis as X1 axis, the movement locus of Ⅹ axis can be divided into Z1 and X1 this two
A ingredient.As shown in figure 9, in the case where being 0.200mm from XA point towards the amount of movement of XB point, towards the movement of X1 axis direction
Amount is 0.199mm, and the amount of movement towards Z1 axis direction is 0.017mm.
[effect brought by grinding processing method involved in embodiment 1]
Hereinafter, to first brought by the C axis of cylindrical grinder 100 involved in present embodiment and X-axis angulation
Effect is illustrated.
In common cylindrical grinder 100, X-axis is orthogonal to Z-axis, therefore moves grinding wheel 11 to 12 direction of thrust face
In the case of, carry out the movement along Z-direction conveying workpieces.However, in the present embodiment, by making grinding wheel 11 along the x axis
It is mobile, as a result generate the movement of Z-direction.
Figure 10 is to indicate that the manufacturing procedure of thrust face 12 involved in present embodiment recycles the one of the movement of medium plain emery wheel 11
The figure of a example.
Figure 11 is the figure for indicating an example of shape for the thrust face 12 based on process shown in Fig. 10.
As shown in Figure 10, if assigning position XA point and XB point week that grinding wheel 11 makes X-axis in a manner of synchronous with the rotation of C axis
The movement moved back and forth to phase property, then the end face of grinding wheel 11 is periodically moved back and forth along Z-direction.As an example and such as
Shown in Figure 10, if moving back and forth X-axis four times whenever C axis rotates a circle, obtain having everywhere as shown in Figure 11
The continuous small curve form of protrusion and recess portion everywhere.Programmed NC device and according to required chamfered shape data
The synchronously control of the C axis carried out and X-axis can lightheartedly form the curved surface formed using process shown in Fig. 10
Shape.
In addition, the performance of " face " " plane " etc is not meant to theoretic complete plane.Also will incline with certain
Tiltedly or convex-concave, the shape of fluctuating regard " face " " plane " as." plane " of workpiece in reality must have certain inclination or convex
Recessed, fluctuating can clearly be characterized as " inclined-plane ", " circular conical surface ", " male and female face " under visual observation if it is the larger value,
Rather than " plane ".But if it is small value, regard " plane " as in the discrimination usually visually observed.Small value is
Refer to situation when for example measuring with flatness for 0.5mm or less.The meaning of " small " of continuous small curve form is also the same,
Refer to the situation when measuring with flatness for 0.5mm or less, as described later, according to the present application, can process with flat
It is 20 μm or so of continuous small curve form when face degree measures.
Figure 12 (a), (b) are the figures for indicating an example of the shape of thrust face 12 involved in present embodiment.In addition,
Continuous small curve form can be with flat with existing simple plane, convexity plane, middle concave plane, circumference groove shape, inclined-plane
The form of the shape overlappeds such as face is formed, but for easy understanding without making existing shape overlapped in Figure 12 (a), (b).
Hereinafter, to second brought by the C axis of cylindrical grinder 100 involved in present embodiment and X-axis angulation
Effect is illustrated.
As described above, in the present embodiment, the amount of movement relative to the X-axis of grinding wheel 11, the amount of movement pole of Z-direction
Its is small.This it is meant that the displacement of the conveying of X-axis to be converted to the displacement of more small Z axis.In the movement of X-axis
In the case that amount is 0.2mm and the amount of movement of Z-direction is 0.017mm in contrast, conversion ratio 8.5/100.That is, in conduct
In the case that the performance of the conveying device of X-axis and minimum movement amount are 0.001mm, as Z axis amount of movement and obtain
The minimum movement amount of extremely small Z-direction as 0.000085mm.Therefore, can be accurate and thrust face 12 be accurately carried out
Continuous small curve form grinding.
Hereinafter, the C axis to cylindrical grinder 100 involved in present embodiment and third brought by X-axis angulation
Effect is illustrated.
Figure 13 (a) to (d) is the grinding wheel to cylindrical grinder 100 involved in existing cylindrical grinder and present embodiment
The figure that 11 processing lines is compared with rotational trajectory.
As shown in Figure 13 (a), in common cylindrical grinder, C axis and X-axis angulation are right angle, therefore grinding wheel 11
End face and thrust face 12 become face contact state.The trace that is, mill for the track that the countless abrasive grains of grinding wheel 11 are depicted
Lines is cut as twill pattern.
But in the present embodiment, as described above, C axis and X-axis angulation be more than 90 ° and at 100 ° hereinafter,
Therefore the end face of grinding wheel 11 becomes the state that line contacts with thrust face 12.Grinding lines in this case is concentric circles.That is,
If circular arc is described in common cylindricalo grinding in the certain point for paying close attention to the end face of grinding wheel 11 in thrust plane on one side, on one side
By the plane, and in contrast, in the present embodiment, describe following track：It is slowly connect from the position far from thrust plane
Closely, and in lowest point it contacts with thrust plane, slowly leaves later.
As shown in Figure 13 (a), in grinding wheel 11 and in the case where 12 face contact of thrust face, when make grinding wheel 11 along the side Z of Fig. 1
When mobile to the mode of incision, entirety of the meeting in the face contact face for being marked hacures is ground thrust face 12, therefore
Continuous small curve form can not be formed.
It is separate other than the grinding line of grinding wheel 11 in the case where grinding wheel 11 and 12 line of thrust face contact as shown in Figure 13 (b)
Thrust face 12, therefore the movement of the Z-direction of grinding wheel 11 and curve form form consistent relationship, it is continuous so as to be formed
Small curve form.
[specification of the continuous small curve form based on grinding processing method involved in embodiment 1]
The outer diameter of general cylindricalo grinding grinding wheel 11 is larger, is 150mm~1065mm, therefore the grinding abrasive grain of thrust face 12
The circular arc of discribed track is also larger.Therefore, resulting curved surface can not become ladder in the shape of the direction of rotation of C axis
Difference, corner, precipitous inclined-plane, and become smooth gentle continuous curved surface.
Specifically, the curved surface size for being formed in the recess portion of thrust face 12 is not less than the radius size of grinding wheel 11, form
For biggish circular arc.If being changed to the protrusion of the curved surface of thrust face 12 and the step difference (axis of the main shaft 8 of cylindrical grinder 100 of recess portion
To size it is poor) this performance, then be formed to have the curved surface of 0.5mm small step difference below.
It as described above, according to the present embodiment, can be with existing simple plane, convexity plane, middle concave plane, circumference
The shape overlappeds such as groove shape, slope plane, and continuous small curve form is formed on the direction of rotation of C axis.
In addition, even if special device or special grinding wheel are not used, and only for the structure of existing cylindrical grinder 100
X-axis and C axis angulation are changed, also can be realized present embodiment.
In addition, due to that can be processed with the conveying speed of the revolving speed of common main shaft 8 and grinding wheel 11, so in C
When forming continuous small curve form on the direction of rotation of axis, process time will not be extended completely.
More than, according to the present embodiment, it is capable of forming the continuous of the thrust face 12 being not likely to form in the existing method
Small curve form, and equipment investment cost and processing cost are cheap, are able to carry out extremely accurate and accurately grinding
Processing.
Embodiment 2.
Figure 14 is the figure for indicating the manufacturing procedure of cylindrical grinder 100 involved in present embodiment.
As shown in figure 14, the processing of crankshaft is carried out using cylindrical grinder 100, which has：Mutually concentric cylinder
The long axle portion 20a and short axle portion 20b of shape；And columned eccentric part 13, eccentric part 13 are formed in long axle portion 20a and short axle portion
Between 20b, and has the center of the off-centring relative to long axle portion 20a and short axle portion 20b.In addition, not shown in Figure 14
Show short axle portion 20b.Cylindrical grinder 100 carries out the grinding of the outer diameter of eccentric part 13, thrust face 12 in a manner of simultaneous processing
Continuous small Machining of Curved Surface and long axle portion outer circle transverse grinding processing." simultaneous processing " mentioned here refers to " benefit
Workpieces processing is kept with the same chuck clamps of same process equipment, and using same grinding wheel 11 to eccentric part outer diameter, thrust
Face 12 and long axle portion 20a are continuously processed ".
In the present embodiment, the X-axis of cylindrical grinder 100 and C axis angulation be configured to more than 90 ° and 100 ° with
Under (with since right angle carry out angular measure when, for more than 0 ° and at 10 ° or less).Firstly, utilizing trimmer before processing
Shaping is carried out to grinding wheel 11.Grinding wheel 11 has two circular conical surfaces centered on rotary shaft 6a, the circular conical surface of a side in peripheral part
The thrust face 12 of crankshaft 20 as ground object is ground, the circular conical surface of another party is to the eccentric part 13 of crankshaft 20, long
The peripheral part of axle portion 20a and short axle portion 20b are ground.In two circular conical surfaces of the peripheral part about grinding wheel 11 to bias
The circular conical surface that portion 13, long axle portion 20a and short axle portion 20b are ground, so that the bus of circular conical surface is parallel with rotary shaft 9a
Mode carries out the shaping of grinding wheel 11, required to obtain in the peripheral part of eccentric part 13, long axle portion 20a and short axle portion 20b
Cylindrical shape.In addition, the circular conical surface being ground to thrust face 12 about grinding wheel 11, carries out shaping to it, so as to
To required continuous small curve form.For example, so that the bus for the circular conical surface of grinding wheel 11 being ground to thrust face 12
Relative to rotary shaft 9a mode at right angle, shaping is carried out to grinding wheel 11.
Next make 11 high speed rotation of grinding wheel, and similarly assign rotary motion to chuck 9 and make grinding wheel 11 to rotation
The cam pin outer diameter of workpiece is mobile, and the grinding of eccentric part 13 is carried out using the synchronously control of C axis and Ⅹ axis.Then,
Keep grinding wheel 11 mobile to the thrust face 12 of workpiece, and is added using C axis and the synchronously control of Ⅹ axis to carry out continuous small curved surface
Work.Finally make grinding wheel 11 mobile to long axle portion 20a, to carry out Cylindrical Grinding Processes.
Figure 15 is the plane for indicating the shaft-like workpiece carried out using angular abrasive grinding wheel 11 based on existing cylindrical grinder
The figure of processing method.
Figure 16 is the figure for indicating the cylindrical grinder 300 of existing angular capitiform formula.
Figure 17 is the figure for indicating existing angular angular grinding machine 400 slideably.
In the past, workpiece as crankshaft 20 was processed using angular abrasive grinding wheel 11 in cylindrical grinder 100, at this
In the case where sample, following method is taken in the processing of thrust face 12, i.e.,：As shown in figure 15, by the grinding wheel spindle 6 of angular abrasive grinding wheel 11
It is configured to smaller with 8 angulation of main shaft, main shaft 8 keeps workpieces processing and rotates workpieces processing, makes angular abrasive grinding wheel
11 end face portion is contacted with workpieces processing.At this point, there are following situations, i.e.,：As shown in Figure 16, using being configured to make outer circle
The case where cylindrical grinder 300 of the angular capitiform formula of the angle rotation of the grinding wheel spindle 6 of grinding machine 300；And as shown in Figure 17,
The case where using angular grinding machine 400 for being configured to rotate the angle of abrasive grinding wheel conveying device 4 (X-axis).
Figure 18 (a), (b) are the eccentric parts executed using angular abrasive grinding wheel for indicating the prior art and present embodiment
The explanatory diagram of the variation of proper circle shape when processing.Here, it in Figure 18 (a), (b), is executed to using angular abrasive grinding wheel 11
Cam pin processing when the variation of proper circle shape be illustrated.Figure 18 (a), (b) are to make angular abrasive grinding wheel 11 and processing work
The figure of the eccentric pin contacts of part, it is identical as cylindrical grinder 100, it is processed by the synchronously control of-Ⅹ axis of C axis.Here,
Using the contact point in the left side of grinding wheel 11 as contact point GA, using the contact point on right side as contact point GB.As shown in Figure 18 (a),
The circular arc R size of the GA and contact point GB in contact point, the periphery of grinding wheel 11 are different, and in contact point GA, circular arc R size is larger,
Contact point GB, circular arc R size are smaller.Here, in the figure (figure on the right side of Figure 18 (a)) from being carried out from the axial direction of workpiece,
At the position that the rotation angle of C axis is 0 °, the position consistency of contact point GA and contact point GB, it means that the bias away from crankshaft
The contact point GA of the grinding wheel 11 at portion center is consistent at a distance from the GB of contact point.Next, being had rotated as shown in Figure 18 (b) in C axis
90 ° of position, shown in the figure (figure on the right side of Figure 18 (b)) from such as being carried out from the axial direction of workpiece, contact point GA and contact point
The position of GB is inconsistent.Relative to contact point GB, the circular arc of the grinding wheel 11 on the GA of contact point is larger, thus contact point GA phase therewith
It heaves with answering, and becomes the state for biting the eccentric part 13 of crankshaft 20.This means that from 13 center of eccentric part of crankshaft 20 to connecing
Contact GA and contact point GB are respective apart from inconsistent.That is, in the same of-Ⅹ axis of C axis executed using angular abrasive grinding wheel 11
In the processing for walking control, since the circular arc of grinding wheel 11 is different, so can be generated due to the difference of the rotation angle of C axis in grinding points
Deviation.Because of the difference of the position of the eccentric part 13 of crankshaft 20, so as to cause the not identical and then out of shape phenomenon of proper circle shape.
Based on the above reasons, in existing angular grinding, bias can not be carried out by the synchronously control of-Ⅹ axis of C axis
The grinding in portion 13.Based on identical reason, the workpiece for camshaft or hexagon is also identical.But in this embodiment party
In formula, the X-axis of cylindrical grinder 100 and C axis angulation are configured to more than 90 ° and at 100 ° or less (since right angle
When carrying out angular measure, for more than 0 ° and at 10 ° or less).Figure 18 (a), the inclination of grinding wheel 11 shown in (b) are very small as a result,
Therefore the difference of the circular arc R size of grinding wheel 11 is small, to become state shown in Figure 18 (b) compared with common angular grinding
When proper circle shape it is out of shape less.Therefore, the outer of the eccentric part 13 of crankshaft can be carried out identically as common cylindricalo grinding
The grinding of circumference, also, chuck 9 can not also be replaced and carry out the continuous of thrust face 12 without using other grinding attachment
Small curve surface grinding.
In the present embodiment, the eccentric part 13 of the crankshaft 20 of processing strain will be easy to produce because of the influence of residual stress
Grinding as first step, therefore can second, third process carry out not precision reduce grinding.However, due to
As the main purpose with simultaneous processing, so process sequence can also be different.In addition, according to the difference of the shape of workpiece, and it is unlimited
Due to above three process.It can also carry out the processing of two circular conical surfaces using the peripheral part of grinding wheel 11 simultaneously.
In this way, keeping workpieces processing by using the same chuck clamps of same process equipment, and utilize same grinding wheel
11 pairs of eccentric parts 13, thrust face 12 and long axle portion 20a are continuously processed, to be completely absent usually with two equipment
The bias or positional shift of workpiece in the case where being processed with two processes when generated clamping therefore can be extremely
Critically the concentricity of each axis, the depth of parallelism, squareness and eccentricity are processed.
In addition, due to without using more process equipments, so equipment, process, process time and quality can be cut down
Confirmation, to reduce manufacturing cost.
Embodiment 3.
Figure 19 is indicated involved in present embodiment using the knot of the cooling air conditioner rotary compressor 50 of crankshaft 20
The longitudinal section view of structure.
Figure 20 is the cross-sectional view for indicating the mechanism of the discharge chambe of rotary compressor 50 involved in present embodiment.
[structure of rotary compressor]
Firstly, based on Figure 19, Figure 20 to as refrigerator or refrigerator-freezer, automatic vending machine, air-conditioning device, refrigerating plant, hot water
The structure of the rotary compressor 50 of the main component of refrigerating circulatory device used in device etc. and movement are illustrated.
Rotary compressor 50 sucks fluid (such as the refrigerant recycled in refrigeration cycle), and presses the fluid
Contracting, to make fluid become the state of high temperature and pressure and discharge it.As shown in figure 19, rotary compressor 50 is in closed container
It is accommodated with compression mechanical part 15 in 14 and drives the motor part 16 of the compression mechanical part 15, is deposited in the bottom of closed container 14
Product has refrigerator oil 17.Motor part 16 is made of stator 18 and rotor 19, is embedded with crankshaft 20 in rotor 19.In the formation of crankshaft 20
There is eccentric eccentric part 13, the thrust face 12 supported to axial load is formed in the lower end surface of eccentric part 13.
Compression mechanical part 15 by partially constituting as follows, i.e.,：Cylinder body 21 has the barrel bore portion as discharge chambe；On
Bearing 22 and lower bearing 23, they are configured at the both ends of cylinder body 21, and double as being discharge chambe side wall；Crankshaft 20, with rotatable
Mode be inserted into upper bearing (metal) 22 and lower bearing 23；Rotary-piston 24 is embedded in the eccentric part 13 of crankshaft；And blade 25,
The internal separation of cylinder body is discharge chambe and suction chamber by it.
Cylinder body 21 blade groove inserted with blade 25, and blade 25 can slide.Blade 25 disc spring by being made of
Leaf spring 26 and be crimped on rotary-piston 24 always.
[movement of rotary compressor]
It for the rotary compressor 50 constituted in this way, is rotated by rotor 19, to be embedded in the song of rotor 19
Axis 20 rotates, and thus eccentric part 13 rotates.By the rotation of eccentric part 13, so that rotary-piston 24 is carried out in the inside of cylinder body 21
Rotational slide.That is, rotary-piston 24 is rotated along 21 inner wall of cylinder body.
Be attracted to discharge chambe from suction line 29 by refrigerant gas as a result, and make by rotary-piston 24, cylinder body 21 and
The volume in the space (discharge chambe) that blade 25 is separated is reduced gradually, to compress to refrigerant gas.The height having compressed
Compression refrigerant gas is discharged into closed container 14, and the external discharge from discharge pipe 30 to closed container 14.
[oil supply mechanism of rotary compressor]
In order to carry out rotary compressor 50 mechanical component lubrication, stockpiled refrigerator oil in closed container 14
17.Refrigerator oil 17 plays following important role, prevents abrasion, the sintering of the slide unit of rotary compressor 50, subtracts
It rubs less and acts movable member successfully, and prevent refrigerant gas from slot leakage of discharge chambe etc..
Next, being illustrated to the circulation mechanism of refrigerator oil 17.It is accumulated in the refrigerator of the bottom of closed container 14
Oil 17 is picked up from the fuel feeding pumping holes for being set to crankshaft 20, and the periphery of each axis by centrifugal force from fuel feeding cross-drilled hole to crankshaft 20
And 12 fuel feeding of thrust face.Therefore, circumferencial direction or vertical direction are formed at the position for the outlet for becoming fuel feeding cross-drilled hole
Thus oil groove constitutes the oil storage unit for the oil being supplied to.
[function of crankshaft 20]
Crankshaft 20 is also used as bearing other than having and the power of motor part 16 is transferred to the function of compression mechanical part 15
Have the function of undertaking the lubrication with each sliding part, is that undertake smoothly rotating for compression mechanical part 15 important with the long-life
Component.Rotor 19 is fixed in long axle portion 20a insertion, and is responsible for the transmitting of motor power.Long axle portion 20a is in a manner of it can rotate
It is inserted into upper bearing (metal) 22, short axle portion 20b is inserted into lower bearing 23 in a manner of it can rotate, to form bearing.The formation of eccentric part 13
It for from the cylindrical shape of the eccentric required eccentricity of long axle portion 20a, and is the composition element of compression mechanical part 15.In addition, partially
The lower end surface of center portion 13 is contacted with the end face of lower bearing 23 and referred to as thrust face 12.For the function of bearing, according to load
Direction is different and divides into the bearing of journals of bearing radial load and supports the two elements of the thrust bearing of axial load.
As the load of the axial action along crankshaft 20, first, there is the self weight being combined by crankshaft 20 and rotor 19
And the power generated, second, there is the power as caused by the magnetic propulsive force of motor part 16, both downward.It, will be bent by the load
The thrust face 12 of axis 20 presses on the end face of lower bearing 23.Thrust bearing is by the thrust face 12 of crankshaft 20 and the end face of lower bearing 23
It constitutes, and there is following function, i.e.,：By making above-mentioned refrigerator oil 17 between, to play reduction mill using oil film
It damages effect and reduces sliding friction effect.
[shape of thrust face]
Figure 21 (a), (b) and Figure 22 (a), (b) are the shapes for indicating the thrust face 12 of crankshaft 20 of present embodiment
Figure.Illustrate the thrust face 12 of crankshaft 20 in a manner of upward, and imitate the dial plate of clock and to the phase of eccentric part 13
Parallactic angle degree is described.Eccentric direction is set as at 6 points, the opposite direction of eccentric direction is set as at 12 points.In addition, in order to show thrust
The small curved surface in face 12 shows an example of " height " size of each point.
In this way, the thrust face 12 in crankshaft 20 carries out the cylindrical grinder 100 based on embodiment 1 or embodiment 2
Processing, to be formed with continuous small curve form.Figure 21 (b) is the eccentric part for only choosing crankshaft 20 shown in Figure 21 (a)
13 figure to show.Figure 21 (a), (b) crankshaft 20 in, be formed as making 6 directions of thrust face 12 to protrude and with becoming
The concave shape to 3 points and 9 directions, if the height in 12 directions is set as 0,6 points are+20 μm, and 3 points with
And 9 points be provided with+10 μm of step difference.
Figure 22 (b) is the figure for only choosing the eccentric part 13 of crankshaft 20 shown in Figure 22 (a) to show.In addition, in Figure 22
(a), in the crankshaft 20 of (b), be formed as making 6 directions of thrust face 12 to protrude and recessed with and 9 directions are tended at 3 points
Under shape, and be also formed as making the peripheral side of thrust face 12 to protrude and with tending to inner circumferential side and concave shape.If
The peripheral side height in 12 directions is set as 0, be then+20 μm, and+10 μm of step difference is provided at 3 points and 9 points at 6 points.
In addition, being provided with -10 μm of step difference in inner circumferential side compared with peripheral side.
According to the shape, the end face of thrust face 12 and the lower bearing 23 slided with it for crankshaft 20, most
The contact of both 6 directions for protrusion generates gap in, 9 directions at concave 3 points.Moreover, in compressor operation, if bent
The rotation of axis 20 and supply lubricating oil to thrust face 12, then bumps based on thrust face 12 and the end on inclined-plane and lower bearing 23 that generates
The gap in face will form wedge shape space, so that lubricating oil is imported into the wedge shape space with the rotation of thrust face 12.In this way, meeting
Cause sliding bearing be referred to as wedge effect oil film pressure increase, thus play a role so that crankshaft 20 thrust face 12
Float.Therefore, the operating that the component of the two is rotated by oil film support, therefore can be non-contiguously well on completely.
An example of the height dimension of each point is shown in Figure 21 (a), (b) and Figure 22 (a), (b), but because of crankshaft
20 size, the difference of the size of load and there is a situation where different from the size.In addition, highest point may not be at 6 points, and
And 3 points can not also be identical with 9 points of height.Compared with 6 points 3 points and 9 points it is concave.
In addition, in the present embodiment, showing the example of rotary compressor 50 but it is also possible to be with other constructions
Vortex, reciprocating, worm compressor.All compressors all have crankshaft or axis, and have bearing axial load
Thrust face 12.It according to the present embodiment, also can be using based on continuous even if the shape of crankshaft 20 or thrust face 12 is different
The wedge effect of oil film caused by small curve form.
Due to having carried out the processing of the cylindrical grinder 100 based on embodiment 1 or embodiment 2, so present embodiment
Thrust face 12 become smooth gentle continuous curved surface.From the viewpoint of oil film formation, not making thrust face 12, there are ladders
Difference, corner or precipitous inclined-plane.This is because what above-mentioned discontinuous plane can cause to generate by the variation of oil film pressure
Thus negative pressure can reduce the load capacity of thrust bearing.
Due to having carried out the processing of the cylindrical grinder 100 based on embodiment 1 or embodiment 2, so present embodiment
Thrust face 12 there is small small and high-quality the surface texture of surface roughness.It is obstructed from the viewpoint of oil film formation
Turning or End Milling Process etc. are crossed using the processing that cutting element is realized to finish to thrust face 12.This is because above-mentioned
Processing can cause rupture of oil film or the mutual contact of component because of the increase of surface roughness or cutter trace, thus can reduce thrust
The load capacity of bearing.
Due to having carried out the processing of the cylindrical grinder 100 based on embodiment 1 or embodiment 2, so present embodiment
Thrust face 12 be formed as making 6 directions of thrust face 12 to protrude and with tending to and 9 directions and concave shape at 3 points.
Therefore, the load capacity of thrust bearing increases to which the freedom degree of design expands, thus it enables that the diminution of thrust bearing area
And the reduction of lubricating oil viscosity.It can be realized the slippage loss for reducing bearing in this way, and realize the efficiency of rotary compressor 50
Improve, and then realizes the improved efficiency of refrigeration air-conditioner.
Due to having carried out the processing of the cylindrical grinder 100 based on embodiment 1 or embodiment 2, so present embodiment
Thrust face 12 be formed as making 6 directions of thrust face 12 to protrude and with tending to and 9 directions and concave shape at 3 points
Shape.Therefore, the load capacity of thrust bearing can be made to increase, so as to realize do not wear and be sintered etc. failures, can
By the higher rotary compressor 50 of property.
Due to having carried out the processing of the cylindrical grinder 100 based on embodiment 1 or embodiment 2, so present embodiment
Thrust face 12 be formed as making 6 directions of thrust face 12 to protrude and with tending to and 9 directions and concave shape at 3 points
Shape.Therefore, the load capacity of thrust bearing can be made to increase, so as to realize the vibration not generated because of unstable crankshaft 20
Caused by abnormal noise, the higher compressor of reliability.
Claims (6)
1. a kind of grinding processing method, uses cylindrical grinder, which has：
Main shaft keeps ground object and makes the ground object rotation；
Abrasive grinding wheel is ground the ground object；
Grinding wheel spindle keeps the abrasive grinding wheel and rotates the abrasive grinding wheel；And
Abrasive grinding wheel conveying axis moves the abrasive grinding wheel along the central axis direction at right angle relative to the grinding wheel spindle,
The main shaft and the respective rotation center of the grinding wheel spindle configure in the same plane,
The abrasive grinding wheel conveying axis configures as follows, i.e.,：Make the conveying direction of the abrasive grinding wheel conveying axis and the master
The rotary shaft angulation of axis is since the rotary shaft of the main shaft clockwise more than 90 ° and in 100 ° of angle models below
Swing is enclosed,
The grinding processing method is characterized in that thering is following process, i.e.,：
The ground object of cylindrical shape is held in the main shaft,
The face contact for intersecting the rotary shaft of the circular conical surface of the peripheral part of abrasive grinding wheel and the same main shaft of the ground object,
To form continuous small curve form in the face.
2. grinding processing method according to claim 1, which is characterized in that
The ground object is axis, which has：
Mutually concentric columned long axle portion and short axle portion；And
Eccentric part is formed between the long axle portion and short axle portion to be cylindric, and is had relative to the long axle portion and short
The center of the off-centring of axle portion,
The grinding processing method has the peripheral part using the abrasive grinding wheel to the peripheral part of the long axle portion and described
The process that the peripheral part of eccentric part carries out grinding.
3. grinding processing method according to claim 1 or 2, which is characterized in that
In the process for forming the continuous small curve form, the abrasive grinding wheel conveying axis rotates a circle with the main shaft
Rotary motion cooperatively move back and forth,
The reciprocating motion has following amplitude, i.e.,：With the period identical with the rotary motion period of the main shaft or with by institute
State main shaft the rotary motion period be split made of the period, come the vibration matched with the milled portion of the ground object
Width.
4. a kind of grinding attachment, which is characterized in that have：
Main shaft keeps ground object and makes the ground object rotation；
Abrasive grinding wheel is ground the ground object；
Grinding wheel spindle keeps the abrasive grinding wheel and rotates the abrasive grinding wheel；And
Abrasive grinding wheel conveying axis moves the abrasive grinding wheel along the central axis direction at right angle relative to the grinding wheel spindle,
The main shaft and the respective rotation center of the grinding wheel spindle configure in the same plane,
The abrasive grinding wheel conveying axis configures as follows, i.e.,：Make the conveying direction of the abrasive grinding wheel conveying axis and the master
The rotary shaft angulation of axis is since the rotary shaft of the main shaft clockwise more than 90 ° and in 100 ° of angle models below
Swing is enclosed,
The rotary motion that the abrasive grinding wheel conveying axis rotates a circle with the main shaft cooperatively moves back and forth.
5. grinding attachment according to claim 4, which is characterized in that
The peripheral part of the abrasive grinding wheel has two circular conical surfaces centered on the grinding wheel spindle,
The face that a side in two circular conical surfaces intersects the rotary shaft of the same main shaft of the ground object is ground,
Another party in two circular conical surfaces is shaped in the mode for keeping bus parallel with the rotary shaft of the main shaft.
6. grinding attachment according to claim 4 or 5, which is characterized in that
Described move back and forth has following amplitude, i.e.,：With the period identical with the rotary motion period of the main shaft or to incite somebody to action
Period made of the rotary motion period of the main shaft is split, come the vibration matched with the milled portion of the ground object
Width.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/061000 WO2016162979A1 (en) | 2015-04-08 | 2015-04-08 | Grinding method and grinding apparatus |
| JPPCT/JP2015/061000 | 2015-04-08 |
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| CN106041649A CN106041649A (en) | 2016-10-26 |
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| CN201610132708.1A Active CN106041649B (en) | 2015-04-08 | 2016-03-09 | Grinding processing method and grinding attachment |
| CN201620181014.2U Expired - Fee Related CN205497136U (en) | 2015-04-08 | 2016-03-09 | Grinding device |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6345341B2 (en) * | 2015-04-08 | 2018-06-20 | 三菱電機株式会社 | Grinding method and grinding apparatus |
| US9878875B1 (en) * | 2016-09-30 | 2018-01-30 | Otis Elevator Company | Building selection in elevator system supporting mobile device calls |
| CN107081671B (en) * | 2017-06-28 | 2023-07-04 | 青岛云路先进材料技术股份有限公司 | Online polishing device |
| CN107263297A (en) * | 2017-07-31 | 2017-10-20 | 浙江洁宇环保装备科技有限公司 | A kind of dedusting airduct outer wall polishing machine |
| CN108161678A (en) * | 2018-01-24 | 2018-06-15 | 浙江全顺机床有限公司 | Numerical control compound grinding machine |
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| JP7184697B2 (en) * | 2019-03-29 | 2022-12-06 | 株式会社小松製作所 | Industrial machine, dimension estimation device, and dimension estimation method |
| CN113021175A (en) | 2019-12-09 | 2021-06-25 | Dmg森精机株式会社 | Machine tool |
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| CN112775840B (en) * | 2021-01-19 | 2022-07-22 | 马鞍山市恒永利机械科技有限公司 | Grinding wheel dressing system |
| CN113334164B (en) * | 2021-05-31 | 2023-02-10 | 湖州铭灏机械有限公司 | Shaft type cylindrical grinding device and method |
| CN113305517B (en) * | 2021-06-21 | 2022-10-11 | 成都爱乐达航空制造股份有限公司 | Method for processing side wall holes of ribs and flanges |
| CN113601282A (en) * | 2021-08-18 | 2021-11-05 | 江阴塞特精密工具有限公司 | Conical grinding method for front edge face of rolling slotting cutter |
| CN114850977B (en) * | 2022-05-31 | 2023-05-05 | 西南交通大学 | Grinding track solving method for processing noncircular irregular shaft by adopting segment difference grinding process |
| CN114932463B (en) * | 2022-07-08 | 2024-01-30 | 重庆红江机械有限责任公司 | Intermittent cylindrical surface grinding method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227940B1 (en) * | 1993-07-30 | 2001-05-08 | Unova Uk Ltd. | X-axis accuracy in two axis machine tools |
| JP2009085125A (en) * | 2007-10-01 | 2009-04-23 | Panasonic Corp | Hermetic compressor |
| CN101590620A (en) * | 2008-05-30 | 2009-12-02 | 杨建良 | A kind of numerical-control crankshaft end face grinding method and numerical control special equipment |
| JP2010528880A (en) * | 2007-06-08 | 2010-08-26 | エルビン・ユンカー・マシーネンファブリーク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Grinding center and method for simultaneous grinding of multiple crankshaft bearings |
| JP2011196372A (en) * | 2010-02-26 | 2011-10-06 | Mitsubishi Heavy Ind Ltd | Compressor |
| JP2014514169A (en) * | 2011-03-24 | 2014-06-19 | エルヴィン ユンカー マシーネンファブリーク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Grinding machine in which a grinding spindle unit is pivotally mounted and a method for pivoting a grinding spindle unit on a grinding machine |
| CN104084865A (en) * | 2014-07-14 | 2014-10-08 | 中船动力有限公司 | Polishing device and method for diesel engine crankshaft |
| CN104440433A (en) * | 2014-12-01 | 2015-03-25 | 南车资阳机车有限公司 | Unbalanced crankshaft balanced grinding method |
| CN205497136U (en) * | 2015-04-08 | 2016-08-24 | 三菱电机株式会社 | Grinding device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5199390A (en) * | 1975-02-27 | 1976-09-01 | Toyoda Machine Works Ltd | KOSAKUBUTSUNOEN TOBUTO TANMENBUOKENSAKUKAKOSURUHOHO |
| JPH0683958B2 (en) * | 1986-03-19 | 1994-10-26 | 豊田工機株式会社 | Crankshaft end face grinding device |
| JPS63123664A (en) * | 1986-11-12 | 1988-05-27 | Toyota Motor Corp | Chamfering process method for cam thrust face of cam shaft |
| JP2669664B2 (en) * | 1988-09-21 | 1997-10-29 | 豊田工機株式会社 | Parallel grinding method for cylindrical work surface |
| JPH09253995A (en) * | 1996-03-15 | 1997-09-30 | Ngk Insulators Ltd | Detent surface engraving method for ceramics flat plate |
| JP2000061790A (en) * | 1998-08-25 | 2000-02-29 | Nippon Seiko Kk | Machining method of cam surface of loading cam device and machining device |
| DE19921785B4 (en) * | 1999-05-11 | 2005-11-24 | Erwin Junker Maschinenfabrik Gmbh | Method for grinding convex running surfaces and outer diameters on shafts with at least one disk-shaped shaft section and grinding machine for carrying out the method |
| US6257964B1 (en) * | 1999-11-01 | 2001-07-10 | Voith Sulzer Paper Technology North America, Inc. | Roll grinding system for a roll |
| JP2003068002A (en) * | 2001-08-28 | 2003-03-07 | Minebea Co Ltd | Working method of magnetic disk mounting part of motor hub for hard disk drive, motor hub and motor provided with this hub |
| JP2006055961A (en) * | 2004-08-23 | 2006-03-02 | Miyagi Prefecture | Method and apparatus for machining axially symmetric aspheric surface by surface grinding machine |
-
2015
- 2015-04-08 JP JP2017511401A patent/JP6345341B2/en not_active Expired - Fee Related
- 2015-04-08 WO PCT/JP2015/061000 patent/WO2016162979A1/en active Application Filing
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227940B1 (en) * | 1993-07-30 | 2001-05-08 | Unova Uk Ltd. | X-axis accuracy in two axis machine tools |
| JP2010528880A (en) * | 2007-06-08 | 2010-08-26 | エルビン・ユンカー・マシーネンファブリーク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Grinding center and method for simultaneous grinding of multiple crankshaft bearings |
| JP2009085125A (en) * | 2007-10-01 | 2009-04-23 | Panasonic Corp | Hermetic compressor |
| CN101590620A (en) * | 2008-05-30 | 2009-12-02 | 杨建良 | A kind of numerical-control crankshaft end face grinding method and numerical control special equipment |
| JP2011196372A (en) * | 2010-02-26 | 2011-10-06 | Mitsubishi Heavy Ind Ltd | Compressor |
| JP2014514169A (en) * | 2011-03-24 | 2014-06-19 | エルヴィン ユンカー マシーネンファブリーク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Grinding machine in which a grinding spindle unit is pivotally mounted and a method for pivoting a grinding spindle unit on a grinding machine |
| CN104084865A (en) * | 2014-07-14 | 2014-10-08 | 中船动力有限公司 | Polishing device and method for diesel engine crankshaft |
| CN104440433A (en) * | 2014-12-01 | 2015-03-25 | 南车资阳机车有限公司 | Unbalanced crankshaft balanced grinding method |
| CN205497136U (en) * | 2015-04-08 | 2016-08-24 | 三菱电机株式会社 | Grinding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6345341B2 (en) | 2018-06-20 |
| CN205497136U (en) | 2016-08-24 |
| WO2016162979A1 (en) | 2016-10-13 |
| JPWO2016162979A1 (en) | 2017-10-19 |
| CN106041649A (en) | 2016-10-26 |
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