CN102672575A - Work-piece contouring device - Google Patents
Work-piece contouring device Download PDFInfo
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- CN102672575A CN102672575A CN2011104224436A CN201110422443A CN102672575A CN 102672575 A CN102672575 A CN 102672575A CN 2011104224436 A CN2011104224436 A CN 2011104224436A CN 201110422443 A CN201110422443 A CN 201110422443A CN 102672575 A CN102672575 A CN 102672575A
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Abstract
The invention discloses a work-piece contouring device, which comprises a grinding wheel and a clamping component, wherein the clamping component comprises a clamping rotating shaft, one end of the clamping rotating shaft is a clamping end, the clamping rotating shaft is driven to revolve on a self revolving central axis by a rotating shaft driving mechanism, the contouring device further comprises a revolving mechanism, the revolving mechanism drives the clamping rotating shaft to carry out centering swing around a revolving centre of the revolving mechanism, the grinding wheel is located near the revolving centre of the revolving mechanism, and the self revolving central axis of the grinding wheel is located in a swing plane, which is formed when the self revolving central axis of the clamping rotating shaft carries out centering swing on the clamping rotating shaft. When grinding, the clamping rotating shaft is driven to carry out centering swing around the revolving centre of the revolving mechanism, meanwhile, the rotating shaft driving mechanism drives the clamping rotating shaft to drive the work-piece to rotate around the self revolving central axis of the clamping rotating shaft, and a grinding working surface of the grinding wheel is in contact with the outer circumferential surface of a spherical surface to be processed on the work-piece to grinding the work-piece, so that a camber line on the outer circumferential surface of the spherical surface to be processed on the work-piece is obtained.
Description
Technical field
The invention belongs to the Grinding Technology field, be specifically related to a kind of end or local device that carries out grinding spherical processing that is used for workpiece.
Background technology
The grinding ratio plane of workpiece end or partial sphere and the grinding difficulty on the face of cylinder are much higher, and when particularly the grinding accuracy of sphere being had relatively high expectations, difficulty is bigger.And adopt hand grinding labour intensity big, and to waste time and energy, grinding accuracy is low, is not suitable for producing in batches.
A kind of method for grinding and grinding attachment are disclosed in publication number is the application for a patent for invention prospectus of CN1810446A; This grinding attachment mainly is the high speed rotation that utilizes workpiece end and the semi arch of cup wheel bottom carries out grinding to the end sphere of workpiece; This grinding attachment can not be adjusted workpiece end grinding radius continuously, and the abrasive particle after the grinding is present in the grinding accuracy that cup wheel inside will influence device.
A kind of high-rigidity turning spherical surface numerical control accurate grinding equipment is disclosed in publication number is the application for a patent for invention prospectus of CN101172330A; On the lathe bed parts, be equipped with spindle box part, tailstock parts and emery wheel reversing frame worktable part; Grinding carriage rotary table parts are supported on arc guide rail and the annulus guide rail, and under the driving of fixed axis at servomotor, move reciprocatingly through worm screw and fan-shaped turbine; Drive the grinding carriage slide by servomotor through feed screw nut pair and on the line slideway on the grinding carriage rotary table, do the straight-line feed motion; The emery wheel grinding tool of being made up of emery wheel grinding tool dish and emery wheel piece directly is connected with electric main shaft through connecting axle.The feed motion of the rotatablely moving of the high speed rotary motion through emery wheel, revolving sphere workpiece, grinding carriage and the reciprocating motion of grinding carriage realize the purpose with a kind of high-hardness revolving sphere workpiece of emery wheel grinding tool grinding different-diameter of diameter.A kind of Ginding process and grinder of spherical surface of columnar workpiece, publication number are disclosed in being the application for a patent for invention Publication Specification of CN101642888A; This method is to put through the centering angle of grinding head and workpiece sphere to revolve; The movement locus of grinding head is formed and the corresponding cambered surface of workpiece spherical radius; And, the expansion of sphere is ground to accomplish through grinding head and the counter-rotating each other of workpiece sphere.
But above-mentioned grinding equipment or grinder all are on existing machine tool, to carry out the system reform, and complicated integral structure costs an arm and a leg, maintenance difficult, and can not realize the continuously adjustable grinding requirement of workpiece end spherical radius.Above-mentioned equipment for grinding or grinder is applicable to the hemispherical attrition process of corynebacterium workpiece end more simultaneously, can't satisfy long bar-shaped workpiece end contouring and the postwelding contouring of flexible axle end and handle.
Summary of the invention
The object of the present invention is to provide a kind of workpiece contouring device simple in structure, to solve how on lathe, to carry out the complicated problem of transforming when the spherical grinding equipment uses in the prior art.
For realizing above-mentioned purpose; Workpiece contouring device provided by the present invention adopts following technical scheme: workpiece contouring device; Comprise grinding carriage that is used and the hold assembly that is used for the clamping workpiece; Be equipped with emery wheel on the grinding carriage; Described hold assembly comprises the clamping rotating shaft that is used for the clamping workpiece, and an end of clamping rotating shaft is used for workpiece is fixed on the bare terminal end in the clamping rotating shaft when using, the clamping rotating shaft by the rotating shaft drive mechanism around self centre of gyration axis rotation; Said contouring device also comprises slew gear; This slew gear drives clamping rotating shaft and does the centering swing around the centre of gyration of said slew gear, and said emery wheel is positioned near the centre of gyration of said slew gear, and self centre of gyration axis of emery wheel is positioned at self centre of gyration axis formed swinging plane when the centering swing is done in the clamping rotating shaft of clamping rotating shaft.
Described slew gear comprises preset arc orbit; In arc orbit, be equipped with the slide block that reciprocatingly slides; The center of circle of arc orbit is the centre of gyration of said slew gear; The clamping rotating shaft is rotatably installed on the slide block, in the clamping rotating shaft, has the department of assembly that is rotatably assorted with slide block, and said slew gear also comprises the slide block driving mechanism that is used to drive said slide block slip.
Described contouring device also comprises the adjusting device of regulating distance between the arc orbit center of circle and the wheel grinding working face according to the radius of sphere to be processed; Adjusting device comprises propping sand wheel carrier workbench; Described grinding carriage is continuously adjustable to be slidedly assemblied on the adjustable track; This adjustable track is along the bearing of trend extension of the line in the said arc orbit center and the arc orbit center of circle, at the locking mechanism that also is provided with the grinding carriage that after grinding carriage is adjusted to the position that makes the arc orbit center of circle equal spherical radius to be processed to the distance of wheel grinding working face, is used to be locked on the workbench.
Described slide block driving mechanism is a toggle, and toggle comprises the connecting rod of crank and be in transmission connection crank and said slide block, and said crank and/or connecting rod are the adjustable horn of axial length.
The lateral surface of described arc orbit is provided with and is used for the outer baffle that anti-limited slip block is deviate from.
The bare terminal end of described clamping rotating shaft is for ease of the hollow-core construction of plug-in mounting workpiece, and the bare terminal end of hollow-core construction is equipped with the chuck that is used for fixing workpiece when using.
Described rotating shaft Drive Structure comprises the drive motors that is installed on the slide block, and drive motors drives said clamping rotating shaft around self centre of gyration axis rotation through transmission mechanism.
The invention has the beneficial effects as follows: workpiece contouring device provided by the present invention comprises hold assembly and the grinding carriage that matches and use; The bare terminal end fixation workpiece of the clamping rotating shaft in the hold assembly; The clamping rotating shaft by the rotating shaft drive mechanism around self centre of gyration axis rotation; The contouring device also comprises slew gear, and slew gear drives the clamping rotating shaft and does the centering swing around the centre of gyration of said slew gear, and said emery wheel is positioned near the centre of gyration of said slew gear; And the centre of gyration axis of emery wheel is positioned at self centre of gyration axis formed swinging plane when the centering swing is done in the clamping rotating shaft of clamping rotating shaft; Add man-hour when using this contouring device that workpiece is carried out contouring, the centre of sphere of the sphere to be processed of workpiece and the centre of gyration of slew gear coincide, during grinding; The clamping rotating shaft is driven around the centre of gyration of said slew gear by slew gear and does the centering swing; Simultaneously, drive workpiece by rotating shaft drive mechanism clamping rotating shaft and rotate around self centre of gyration axis of clamping rotating shaft, emery wheel rotates around self centre of gyration axis; The outer peripheral face of sphere to be processed contacts with grinding work piece on the grinding working face that makes emery wheel then and the workpiece, thereby obtains the outer peripheral face camber line of sphere to be processed on the workpiece.The centre of gyration axis of contouring device medium plain emery wheel provided by the present invention and the centre of gyration axis of workpiece all are positioned at self rotary middle spindle string pendulum in the clamping rotating shaft formed swinging plane when moving, and this can reduce Grinding Error, improves grinding accuracy.And easy to operate when contouring device provided by the present invention uses, overall structure is simple, need not carry out complicated transformation to existing machine tool, and grinding efficiency is high, and processing cost is lower, has higher using value.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of workpiece contouring device provided by the present invention;
Fig. 2 is the part-structure sketch map of the slide block driving mechanism in the contouring device shown in Figure 1;
Fig. 3 is the part-structure sketch map of the clamping rotating shaft in the contouring device shown in Figure 1;
Fig. 4 is the part-structure sketch map of the adjusting device in the contouring device shown in Figure 1.
The specific embodiment
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; A kind of embodiment of workpiece grinding spherical device; Workpiece grinding spherical device among this embodiment comprises workbench 15; Be supported with grinding carriage and the hold assembly that is used for clamping workpiece 7 on the workbench 15, hold assembly comprises the clamping rotating shaft 6 that is used for the clamping workpiece, and clamping rotating shaft 6 is to be used for workpiece 7 is fixed on the bare terminal end in the clamping rotating shaft 6 towards an end of emery wheel 3; Clamping rotating shaft 6 by the rotating shaft drive mechanism around self centre of gyration axis rotation; Said contouring device also comprises slew gear, and slew gear drives clamping rotating shaft 6 and does the centering swing around the centre of gyration of said slew gear, and emery wheel 3 is installed on grinding carriage; Emery wheel 3 is positioned near the centre of gyration of said slew gear, and the centre of gyration axis of emery wheel 3 is positioned at self centre of gyration axis formed swinging plane when the centering swing is done in clamping rotating shaft 6 of clamping rotating shaft 6.
Slew gear in the present embodiment comprises the arc orbit 4 that is installed in the workbench top in advance; The center of circle of arc orbit 4 is the centre of gyration of said slew gear; Reciprocal slidable fit has slide block 5 in arc orbit 4; This slide block 5 is the suitable arc shaped slider of contour structures and arc orbit 4, deviates from from arc orbit 4 for anti-limited slip block 5, on the lateral surface of arc orbit 4, also is provided with outer baffle 10; Slide block 5 in the arc orbit 4 is reciprocatingly slided in arc orbit 4 by the slide block drive mechanism; Slide block driving mechanism in the present embodiment is a toggle, and toggle comprises the connecting rod 2 that is driven the crank 1 that rotates and be in transmission connection crank and said slide block by servomotor 8 through reductor 9, and crank 1 here and/or connecting rod 2 are the adjustable horn of axial length.Clamping rotating shaft 6 in the said hold assembly is radially extended along arc orbit 4; Clamping rotating shaft 6 is rotatably installed on the slide block 5; It is that the centre of gyration of slew gear is done centering and swung that clamping rotating shaft 6 drives down around the center of circle o of said arc orbit 4 at slide block 5; Clamping rotating shaft 6 is rotated and is assemblied on the slide block 5, but clamping rotating shaft 6 axially and between the slide block 5 does not have relative motion at it.Have in the clamping rotating shaft 6 to rotate and be assemblied in the department of assembly 62 on the slide block 5; Clamping rotating shaft 6 is used for the workpiece 7 coaxial bare terminal ends 61 that are fixed in the clamping rotating shaft 6 when an end of grinding carriage is use; The bare terminal end 61 of clamping rotating shaft 6 radially arrives the radius of the distance of arc orbit 4 center camber lines less than arc orbit 4 along arc orbit 4; The department of assembly 62 of the clamping rotating shaft 6 in the present embodiment rotates through bearing arrangement 15 and is assemblied on the slide block 5; Clamping rotating shaft 6 is by rotating shaft Drive Structure driven in rotation; The rotating shaft driving mechanism comprises the drive motors 12 that is installed on the slide block; Drive motors drives clamping rotating shafts 6 through belt gear 13 and rotates around self centre of gyration axis, and the clamping rotating shaft 6 in the present embodiment is for ease of the hollow shaft of plug-in mounting workpiece, is equipped with when using and workpiece is coaxial is fixed on the chuck 14 in the clamping rotating shaft adding the bare terminal end of holding rotating shaft.On grinding carriage, be equipped with emery wheel 3, emery wheel 3 is positioned near the below of arc orbit center of circle o, and the centre of gyration of emery wheel 3 is positioned at the swinging plane of clamping rotating shaft 6 self centre of gyration axis.
Contouring device in the foregoing description also comprises the adjusting device of regulating distance between the grinding working face of the center of circle and emery wheel 3 of arc orbit 4 according to the radius of sphere to be processed; Adjusting device comprises the workbench 15 of propping sand wheel carrier and hold assembly; Adjustable track 16 is installed on workbench; Grinding carriage is continuously adjustable to be slidedly assemblied on the adjustable track 16; This adjustable track is along the bearing of trend extension of the line in said arc orbit 4 centers and arc orbit 4 centers of circle, at the locking mechanism 17 that also is provided with the grinding carriage that after grinding carriage is adjusted to the position that makes arc orbit 4 centers of circle equal spherical radius to be processed to the distance of wheel grinding working face, is used to be locked on the workbench.
Locking mechanism in the foregoing description can adopt screw thread self-locking of the prior art or worm and gear self-locking, or adopts the servo positioning system like driven by servomotor, promptly is positioned after adjustable track moves into place as long as can be implemented in grinding carriage.
When the contouring processing unit (plant) in using the foregoing description carries out grinding to the sphere to be processed of workpiece; Utilize the adjustable track 16 in the adjusting device to regulate the distance of the center of circle of arc orbit 4 according to the radius of sphere to be processed to the grinding working face of emery wheel 3; Make the center of circle o of arc orbit 4 equal the radius of sphere to be processed to the distance of the grinding working face of emery wheel 3; After regulating completion; Utilize the locking mechanism 17 in the adjusting device that grinding carriage is locked on workbench 15; In the distance of the grinding working face of emery wheel 3, require to adjust the extreme position of slide block and clamping rotating shaft 6 centering swings in the center of circle of regulating arc orbit 4, then workpiece 7 is fixed in the clamping rotating shaft 6 through chuck 14 through the axial length of adjustment crank 1 and/or connecting rod 2 according to the outer peripheral face grinding-shaping of sphere to be processed; The center of circle of arc orbit 4 of the centre of sphere and the hold assembly of sphere to be processed on the workpiece 7 is coincided; During grinding, reciprocatingly slided along arc orbit 4 by slide block drive mechanism slide block 5, slide block 5 drives workpiece through clamping rotating shaft 6, and o does the centering swing around the center of circle of said arc orbit 4; Simultaneously; Drive workpiece 7 by rotating shaft drive mechanism clamping rotating shaft 6 and rotate around self centre of gyration axis of clamping rotating shaft, emery wheel 3 wraparounds are changeed central axis and are rotated, and the outer peripheral face of sphere to be processed contacts with grinding work piece on the grinding working face that makes emery wheel 3 then and the workpiece 7.
Slew gear in the foregoing description adopts the arc orbit structure, in other embodiments, also can adopt other slew gear forms; As to adopt turntable structure, the center of rotating disk be the centre of gyration of said slew gear, offers the centre bore that is used to place emery wheel in the center of rotation of rotating disk; Position away from centre bore on the side of rotating disk is installed with locating piece, and this locating piece is equivalent to the slide block in the foregoing description, and the clamping rotating shaft in the said hold assembly is rotatably installed on the locating piece; When rotating under the driving of rotating disk at servomotor, rotating disk drives clamping rotating shaft wraparound through locating piece changes the central axis rotation, at this moment; The rotating shaft drive unit that is used to drive clamping rotating shaft rotation can be arranged on locating piece; Also can be arranged on the rotating disk, when the clamping rotating shaft around self centre of gyration axis time rotational, wraparound commentaries on classics center revolution under the driving of rotating disk; When the wheel grinding working face contacts with workpiece, accomplish grinding to the sphere to be processed of workpiece.
The contouring device comprises the adjusting device that can regulate continuously according to the requirement of sphere to be processed in the foregoing description; In other embodiments; Also can remove adjusting device, but the contouring device of this moment is only applicable to process a kind of sphere of radii fixus, it is less to use the orientation.And if after in the contouring device, increasing adjusting device, can effectively enlarge the range of work of contouring device so that the contouring device is processed the sphere to be processed of different radii size.
As shown in Figure 4; Slide block in the foregoing description reciprocatingly slides in arc orbit, according to the own characteristic of toggle, and the two limit positions that in arc orbit, exists slide block to slide; And for the contouring device; The two limit positions that the arc orbit top shoe moves will influence the moulding of sphere to be processed on the workpiece, and two limit positions distance on arc orbit is far away more, and the outer peripheral face shaping area of the sphere to be processed on the workpiece is bigger; Two limit positions distance on arc orbit is near more, and the outer peripheral face shaping area of the sphere to be processed on the workpiece is just less.And the distance of the extreme position of arc orbit on arc orbit regularly decided by the length of crank 1 and connecting rod 2 at the radius one of arc orbit; So can crank and/or connecting rod be designed to the adjustable horn of axial length; Regulate the length of horn according to the actual conditions needs, guarantee that the form grinding that satisfies sphere to be processed requires to get final product.
Slide block driving mechanism in the foregoing description is a toggle, and in other embodiments, the slide block driving mechanism can adopt other structure; Like sprocket drive; This sprocket drive comprises that arc orbit is provided with the inboard that is positioned at slide block or the chain drive-belt in the outside, and chain drive-belt is driven by the sprocket wheel of driven by servomotor, and slide block is fixedly connected on the chain; Opposite side at slide block is equipped with the directive wheel that corresponding guiding with arc orbit cooperates; When the driven by servomotor sprocket rotation, chain drive-belt drives slide block and in arc orbit, moves back and forth, when adopting chain drive mechanism; Slide block is in the moving range decision by chain of the two limit positions of arc orbit; The moving range of chain then by the working time decision of servomotor, at this moment, can realize the adjustment between the two limit positions of slide block in arc orbit through the rotating working time of adjustment servomotor.Certainly; Can also adopt other driving mechanism to come driving sliding block reciprocal slip in arc orbit; The centering swing is done in clamping rotating shaft on the assurance slide block around the arc orbit center of circle; Afterwards be implemented in be installed in workpiece on the bare terminal end of clamping rotating shaft after, workpiece is done the centering swing around the center of circle of arc orbit, guarantee the grinding of the grinding working face of emery wheel to sphere to be processed.
Rotating shaft driving mechanism in the foregoing description adopts belt transmission between drive motors and clamping rotating shaft, in other embodiments, can also adopt other the mode that is in transmission connection between drive motors and the clamping rotating shaft, like gear drive or chain transmission.Certainly, in other embodiments, drive motors can not be arranged on the slide block yet, and is arranged on the external device that slides synchronously with slide block, preferably still directly is installed on the slide block certainly to get final product.
Emery wheel in the foregoing description is positioned at the below, the center of circle of arc orbit; In other embodiments; Be arranged near the getting final product in the center of circle of arc orbit; Can be arranged on a side in the center of circle of arc orbit, equal the radius of sphere to be processed to the distance between the grinding working face of emery wheel as long as guarantee the center of circle of arc orbit.
In the above-described embodiments, the sense of rotation of emery wheel can be consistent with the sense of rotation of clamping rotating shaft, also can be opposite, only otherwise influencing normal grinding gets final product.
Clamping rotating shaft in the foregoing description is a hollow shaft, and bar-shaped workpiece can directly be inserted in the clamping rotating shaft, again by coaxial being fixed in the clamping rotating shaft of the chuck that is assemblied in bare terminal end.In other embodiments; Can adopt the fixed form of other structures that workpiece is fixed in the clamping rotating shaft; Be designed to clamp the structure of flap like bare terminal end, and clamp suit binding ring on the periphery of lobe certainly the clamping rotating shaft, equally can be with coaxial being fixed in the clamping rotating shaft of workpiece.
In the foregoing description,, the clamping rotating shaft is designed to hollow shaft structure for ease of the long bar-shaped workpiece of processing axial length, in other embodiments, when not needing the long workpiece of processing length, also can be only in the bare terminal end design hollow-core construction of clamping rotating shaft.If workpiece is less, can this adopts solid clamping rotating shaft, and only piece-holder is installed on the chuck.
The department of assembly of the clamping rotating shaft in the foregoing description is positioned near the end away from emery wheel of clamping rotating shaft, and in other embodiments, the department of assembly of clamping rotating shaft also can be arranged near the middle part of clamping rotating shaft or the end near emery wheel.
Claims (7)
1. workpiece contouring device; Comprise grinding carriage that is used and the hold assembly that is used for the clamping workpiece; Be equipped with emery wheel on the grinding carriage; It is characterized in that: described hold assembly comprises the clamping rotating shaft that is used for the clamping workpiece, and an end of clamping rotating shaft is used for workpiece is fixed on the bare terminal end in the clamping rotating shaft when using, the clamping rotating shaft by the rotating shaft drive mechanism around self centre of gyration axis rotation; Said contouring device also comprises slew gear; This slew gear drives clamping rotating shaft and does the centering swing around the centre of gyration of said slew gear, and said emery wheel is positioned near the centre of gyration of said slew gear, and self centre of gyration axis of emery wheel is positioned at self centre of gyration axis formed swinging plane when the centering swing is done in the clamping rotating shaft of clamping rotating shaft.
2. workpiece contouring device according to claim 1; It is characterized in that: described slew gear comprises preset arc orbit; In arc orbit, be equipped with the slide block that reciprocatingly slides, the center of circle of arc orbit is the centre of gyration of said slew gear, and the clamping rotating shaft is rotatably installed on the slide block; In the clamping rotating shaft, have the department of assembly that is rotatably assorted with slide block, said slew gear also comprises the slide block driving mechanism that is used to drive said slide block slip.
3. workpiece contouring device according to claim 2; It is characterized in that: described contouring device also comprises the adjusting device of regulating distance between the arc orbit center of circle and the wheel grinding working face according to the radius of sphere to be processed; Adjusting device comprises propping sand wheel carrier workbench; Described grinding carriage is continuously adjustable to be slidedly assemblied on the adjustable track; This adjustable track is along the bearing of trend extension of the line in the said arc orbit center and the arc orbit center of circle, at the locking mechanism that also is provided with the grinding carriage that after grinding carriage is adjusted to the position that makes the arc orbit center of circle equal spherical radius to be processed to the distance of wheel grinding working face, is used to be locked on the workbench.
4. according to claim 2 or 3 described workpiece contouring devices; It is characterized in that: described slide block driving mechanism is a toggle; Toggle comprises the connecting rod of crank and be in transmission connection crank and said slide block, and said crank and/or connecting rod are the adjustable horn of axial length.
5. workpiece contouring device according to claim 4 is characterized in that: the lateral surface of described arc orbit is provided with and is used for the outer baffle that anti-limited slip block is deviate from.
6. workpiece contouring device according to claim 5 is characterized in that: the bare terminal end of described clamping rotating shaft is for ease of the hollow-core construction of plug-in mounting workpiece, and the bare terminal end of hollow-core construction is equipped with the chuck that is used for fixing workpiece when using.
7. workpiece contouring device according to claim 5 is characterized in that: described rotating shaft Drive Structure comprises the drive motors that is installed on the slide block, and drive motors drives said clamping rotating shaft around self centre of gyration axis rotation through transmission mechanism.
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| CN2011104224436A CN102672575A (en) | 2011-12-16 | 2011-12-16 | Work-piece contouring device |
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| CN2011104224436A CN102672575A (en) | 2011-12-16 | 2011-12-16 | Work-piece contouring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107553265A (en) * | 2017-10-16 | 2018-01-09 | 新乡市百合光电有限公司 | A kind of ellipsoid shape Lamp cup processing unit (plant) |
| CN108500832A (en) * | 2018-06-19 | 2018-09-07 | 天津大学 | Swing aligning structure for arc track feeding |
| CN111843709A (en) * | 2020-07-27 | 2020-10-30 | 苏州宏亮电子有限公司 | Machining equipment for hemispherical automobile fastener |
| CN112872971A (en) * | 2021-01-05 | 2021-06-01 | 杨洁 | Invisible orthodontic tooth socket grinding and polishing machine and processing method of invisible orthodontic tooth socket |
| CN114367900A (en) * | 2021-10-28 | 2022-04-19 | 中国航发西安动力控制科技有限公司 | Device and method for grinding end spherical surface of shaft part |
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| CN108500832A (en) * | 2018-06-19 | 2018-09-07 | 天津大学 | Swing aligning structure for arc track feeding |
| CN108500832B (en) * | 2018-06-19 | 2023-10-20 | 天津大学 | Swing aligning structure for feeding circular arc track |
| CN111843709A (en) * | 2020-07-27 | 2020-10-30 | 苏州宏亮电子有限公司 | Machining equipment for hemispherical automobile fastener |
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Application publication date: 20120919 |