CN106272079A - Emery wheel can the screw rod grinding attachment of restoring on line - Google Patents

Emery wheel can the screw rod grinding attachment of restoring on line Download PDF

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Publication number
CN106272079A
CN106272079A CN201610716849.8A CN201610716849A CN106272079A CN 106272079 A CN106272079 A CN 106272079A CN 201610716849 A CN201610716849 A CN 201610716849A CN 106272079 A CN106272079 A CN 106272079A
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CN
China
Prior art keywords
emery wheel
screw rod
restoring
line
rotary table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610716849.8A
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Chinese (zh)
Other versions
CN106272079B (en
Inventor
唐倩
刘宗敏
邓峰
刘志涛
严迪
冯祺祥
卢晓东
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Chongqing University
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Chongqing University
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Priority to CN201610716849.8A priority Critical patent/CN106272079B/en
Publication of CN106272079A publication Critical patent/CN106272079A/en
Application granted granted Critical
Publication of CN106272079B publication Critical patent/CN106272079B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/017Devices or means for dressing, cleaning or otherwise conditioning lapping tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00Thread cutting; Automatic machines specially designed therefor
    • B23G1/36Thread cutting; Automatic machines specially designed therefor by grinding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/075Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/08Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
    • B24B53/085Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms

Abstract

The invention discloses a kind of emery wheel can the screw rod grinding attachment of restoring on line, including for installing screw rod and driving screw rod around the screw rod workbench of axis rotation, it is arranged at the described horizontal side of screw rod workbench the grinding carriage that can move along screw rod radial level, can vertically slide and the rotary table of described grinding carriage can be installed on and be installed on emery wheel and the dresser of described rotary table in the way of horizontal direction rotation simultaneously, this grinding attachment is integrated a set of emery wheel restoring on line device on existing screw rod grinding machine, directly the result of workpiece calibration is fed back to lathe crushing program, complete emery wheel is whole in machine maintenance, thus greatly improve machine tooling efficiency and precision, avoid the resetting error after crushing.

Description

Emery wheel can the screw rod grinding attachment of restoring on line
Technical field
The present invention relates to screw rod grinding attachment field, a kind of emery wheel can the screw rod grinding attachment of restoring on line.
Background technology
Screw rod is the spiral shells such as helical-lobe compressor, screw rod multiphase mixing transmission pump, screw vacuum pump, screw expander, screw extruder The kernel component of bar machinery.It is widely used in the countries such as oil, chemical industry, Aero-Space, marine drilling platform, environmental protection, electric power Need the great high-end equipment main frame industry of development badly.The processing of screw rod is carried out on screw rod grinding machine, is arranged on screw rod grinding machine On emery wheel by high speed rotating grinding, process screw flight, the grinding wheel shaping device being arranged on screw rod grinding machine can repair by The emery wheel of the various molding of straight line and circular arc composition with the needs of satisfied processing, with ensure the angle of emery wheel, thickness and with The parameters such as heart degree, thus ensure the crudy of screw rod.
At present owing to shortage emery wheel is at machine maintenance adjusting technique, general employing off-line finishing in prior art, this method can be deposited Two problems, one is that the dismounting of emery wheel can cause multiple bearing to affect the positioning precision of emery wheel, thus affects the processing of workpiece Precision;Two are as crushing number of times increases, and the process-cycle can be made to extend, thus have impact on working (machining) efficiency.
For solving problem above, need integrated a set of emery wheel restoring on line device on existing screw rod grinding machine, directly will The result of workpiece calibration feeds back to lathe crushing program, and complete emery wheel is whole in machine maintenance, and this device greatly improves Machine tooling efficiency and precision, it is to avoid the resetting error after crushing.
Summary of the invention
In view of this, it is an object of the invention to overcome defect of the prior art, it is provided that a kind of emery wheel can restoring on line Screw rod grinding attachment, this device is integrated a set of emery wheel restoring on line device on existing screw rod grinding machine, directly by workpiece calibration Result feed back to lathe wheel dresser, complete emery wheel is whole in machine maintenance, and this device greatly improves machine tooling Efficiency and precision, it is to avoid the resetting error after crushing.
The emery wheel of the present invention can the screw rod grinding attachment of restoring on line, including for installing screw rod and driving screw rod around axis The screw rod workbench of rotation, be arranged at the described horizontal side of screw rod workbench the grinding carriage that can move along screw rod radial level, By can vertically slide and can around horizontal direction rotation in the way of be installed on described grinding carriage rotary table and with Time be installed on emery wheel and the dresser of described rotary table;
Further, the table top of described rotary table is positioned at perpendicular, and the axis of described emery wheel is parallel to this table top And be provided with on this table top for driving emery wheel to drive motor around the emery wheel of axial rotation;
Further, the emery wheel that described dresser includes that two is coaxially fixing and the axis of axis and described emery wheel is parallel to each other is repaiied Whole dish, described in two, crushing dish coordinates with described rotary table in the way of axially and radially can reciprocatingly sliding along it;
Further, described rotary table is additionally provided with crushing disk-drive motor, crushing dish is adjusted axially Motor and crushing dish radially adjust motor, and described crushing dish is adjusted axially motor and crushing dish radially adjusts electricity Machine drives crushing dish axially and radially to reciprocatingly slide along it by a leading screw and nut mechanism respectively;
The emery wheel of the present invention screw rod grinding attachment of restoring on line can also include that T-shaped lathe bed, described T-shaped lathe bed are provided with edge Horizontally arranged and orthogonal longitudinal slide rail and horizontal slide rail;Described longitudinal slide rail and horizontal slide rail are respectively used to and spiral shell Bar workbench and grinding carriage are slidably matched;
Further, described grinding carriage is vertically provided with upright slide rail and is sliding combined with vertically by this upright slide rail Slide block, described rotary table is pivotally mounted on this upright slide block;
The emery wheel of the present invention can the screw rod grinding attachment of restoring on line also include for driving described rotary table to rotate Turntable driving motor, described turntable driving motor drives described rotary table to rotate by worm and worm gear;
Further, described emery wheel drives motor to drive described emery wheel to be rotated about axis by the way of V belt translation;
Further, also include the detection device for measuring screw size and the detection data of measurement apparatus can be received also Control the processor that emery wheel is repaired by dresser.
The invention has the beneficial effects as follows: the emery wheel of the present invention can the screw rod grinding attachment of restoring on line, screw rod to be processed Being installed on screw rod workbench, and driven rotation by screw rod workbench, grinding carriage is arranged on screw rod workbench side can be along spiral shell Bar radial level moves to realize the grinding of the radial feed of emery wheel and emery wheel and compensates, and emery wheel is arranged on rotary table, returns The geometric center of the vertical sliding motion guarantee emery wheel of revolving worktable and the axis of screw rod to be processed, all the time in same level, turn round work The established angle of emery wheel can be adjusted by station in the rotation of perpendicular, and emery wheel can realize screw rod around the rotation of its axis Grinding;The dresser of the present invention and emery wheel are together on rotary table, and therefore emery wheel is feeding motion, erecting When straight translation and setting angle adjust, dresser position relative with emery wheel keeps constant, and therefore emery wheel can be the most flat Any rotation in face, and arbitrarily angled finishing can be rested on, carry out realizing to emery wheel is whole in machine maintenance, this Bright grinding attachment greatly improves screw rod working (machining) efficiency and precision, it is to avoid the mistake that the resetting after crushing causes Difference.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the drive mechanism schematic diagram of the dresser of the present invention.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention, as it can be seen, the emery wheel 4 of the present embodiment can the screw rod grinding of restoring on line Device, including for install screw rod and drive screw rod around axis rotation screw rod workbench 3, be arranged at described screw rod workbench 3 Horizontal side also can be along emery wheel 4 frame that screw rod radial level moves, can vertically slide and can rotate around horizontal direction Mode be installed on the rotary table 7 of described emery wheel 4 frame and be installed on the emery wheel 4 of described rotary table 7 simultaneously and repair Whole device 5, screw rod to be processed is installed on screw rod workbench 3, and is driven rotation (A axle) by screw rod workbench 3, and emery wheel 4 sets up Put in screw rod workbench 3 side and (Y-axis) can be moved along screw rod radial level to realize the radial feed of emery wheel 4 and emery wheel 4 Grinding compensates, and emery wheel 4 is arranged on rotary table 7, and the vertical sliding motion (Z axis) of rotary table 7 ensures in the geometry of emery wheel 4 The axis of the heart and screw rod to be processed is all the time in same level, and rotary table 7 can be to sand in the rotation (B axle) of perpendicular The established angle of wheel 4 is adjusted, and emery wheel 4 can realize the grinding to screw rod around the rotation (N axle) of its axis;The present invention repaiies Whole device 5 and emery wheel 4 are together on rotary table 7, and therefore emery wheel 4 is feeding motion, vertically translation and established angle When degree adjusts, dresser 5 position relative with emery wheel 4 keeps constant, and therefore emery wheel 4 can rotate random angle in perpendicular Degree, and can rest on arbitrarily angled finishing, and carry out realizing to emery wheel 4 is whole in machine maintenance, the grinding attachment of the present invention Greatly improve screw rod working (machining) efficiency and precision, it is to avoid the error that the resetting after emery wheel 4 finishing causes.
In the present embodiment, the table top of described rotary table 7 is positioned at perpendicular, and the rotating shaft (B of rotary table 7 Axle) by the geometric center of described emery wheel 4, the processing to different helical angle workpiece therefore can be realized, the axis of emery wheel 4 is parallel It is provided with on the table top and this table top of rotary table 7 for driving emery wheel 4 to drive motor around the emery wheel of axial rotation (N axle) 14, utilize emery wheel to drive motor 14 to drive emery wheel 4 to rotate, simultaneously as the axis of emery wheel 4 is parallel to the platform of rotary table 7 Face, is always positioned in perpendicular with the axis that this ensures emery wheel 4.
In the present embodiment, described dresser 5 includes what two the most fixing and axis and described emery wheel 4 axis were parallel to each other Crushing dish 10, wherein crushing dish 10 is higher than the disk body being trimmed emery wheel 4 hardness for hardness, generally uses boart boart Wheel 4 as emery wheel 4 dresser 5, crushing dish 10 described in two in the way of axially and radially can reciprocatingly sliding along it with described Rotary table 7 coordinates, and dresser 5 is along emery wheel 4 axially-movable (U axle) emery wheel 4 vertical with dresser 5 axially-movable (V axle) group Becoming two linked systems, the sliding seat of dresser 5 is arranged on rotary table 7, and ensures dresser 5 diamond dressing wheel end face all the time It is parallel to emery wheel 4 end face, it is achieved the dresser 5 finishing campaign to the complex profile in place of emery wheel 4, the finishing of emery wheel 4 can divide For shaping and two steps of dressing, shaping is the macro geometry by changing emery wheel 4, makes emery wheel 4 reach the geometry needed And dimensional accuracy, and make the sharp sharpening of the most advanced and sophisticated fine broken formation of abrasive particle;Dressing is by removing the knot between emery wheel 4 abrasive particle Mixture, makes abrasive particle protrude bonding agent surface, forms necessary chip space, make emery wheel 4 have optimal grinding capacity, plain wheel The shaping of 4 and dressing are generally unified to carry out or completes simultaneously, combines and is referred to as finishing, and CBN emery wheel 4 hard grinding wheel such as grade 4 Shaping and dressing the most as the case may be, can complete simultaneously, it is possible to substep carry out, in the present embodiment use diamond dressing wheel As dressing tool, shaping and the dressing of emery wheel 4 are completed simultaneously.
In the present embodiment, described rotary table 7 is additionally provided with crushing disk-drive motor 11, crushing dish axle To regulation motor 13 and crushing dish radiai adjustment motor 15, described crushing dish is adjusted axially motor 13 and crushing Dish radiai adjustment motor 15 drives crushing dish 10 along its axial (V direction) and radial direction by a leading screw and nut mechanism 12 respectively (U direction) reciprocatingly slides, and on the right side of the present embodiment employing, crushing dish 10 repairs emery wheel 4 right lateral contours, left side crushing dish On the left of 10 finishing emery wheels 4, the separating type of profile is repaired, during work, and the crushing dish 10 of emery wheel 4 dresser 5 and emery wheel 4 are driven by respective feeding motor respectively, and the slide of installing of emery wheel 4 dresser 5 is fixedly mounted on the rotation of emery wheel 4 headstock On revolving worktable, and using the method that freeing wheel parallel axes repairs, crushing dish 10 is adjusted axially motor at crushing dish 13 and crushing dish radiai adjustment motor 15 driving under, realize crushing dish 10 along emery wheel 4 radially (V through leading screw transmission Direction) and the straight-line feed motion in axial (U direction), complete emery wheel 4 repaiies type.
The grinding attachment of the present embodiment also includes that T-shaped lathe bed 1, described T-shaped lathe bed 1 are provided with horizontally disposed and phase The most vertical longitudinal slide rail 2 (X to) and horizontal slide rail 9 (Y-direction);Described longitudinal slide rail 2 and horizontal slide rail 9 are respectively used to and screw rod Workbench 3 and emery wheel 4 frame are slidably matched.
In the present embodiment, described emery wheel 4 frame is vertically provided with upright slide rail 8 (Z-direction) and is slided by this upright slide rail 8 Moving and be combined with upright slide block, described rotary table 7 is pivotally mounted on this upright slide block.
The grinding attachment of the present embodiment also includes the turntable driving motor for driving described rotary table 7 to rotate, institute Stating turntable driving motor drives described rotary table 7 to rotate by worm and worm gear 16, and wherein, turbine can be fixed or one Molding and rotary table 7, the speed reducing ratio of worm and gear is bigger, it is possible to realizes the accurate of emery wheel 4 setting angle and regulates, meanwhile, The rotation of rotary table 7 is locked by the characteristic utilizing worm and gear single-direction transmission.
In the present embodiment, described emery wheel drives motor 14 to drive described emery wheel 4 to be rotated about axis by the way of V belt translation.
The grinding attachment of the present embodiment also includes the detection device for measuring screw size and can receive measurement apparatus Detection data and control the processor that emery wheel 4 is repaired by dresser 5, in the present embodiment to emery wheel 4 repair before need First will detect workpiece, this lathe uses the method that On-machine Test combines with error compensation, i.e. at workpiece process In when needing workpiece size is measured, lathe is shut down, and workpiece does not takes off from lathe, utilizes be arranged on lathe to be furnished with The gauge head of communication function measures system, and it is right to require under the control of process of measurement according to workpiece size to be measured and the accuracy of form and position Workpiece detects, and testing result data pass to be analyzed in processor and process.
In the present embodiment, described detection device is the three-dimensional coordinates measurement module for detecting Screw Parameters, described processor The trim amount of emery wheel 4 can be calculated by the Screw Parameters recorded and control the finishing action of emery wheel 4 dresser 5, wherein, three coordinates Measurement module is existing three coordinate measuring machine, does not repeats them here, and three-dimensional coordinates measurement module can use non-contacting mode pair The parameters such as the profile of processed screw rod, helical pitch measure and carry out measurement data automatic discriminatory analysis, draw emery wheel 4 institute The trim amount needed, automatically generates emery wheel 4 program of repairing and completes the restoring on line of emery wheel 4.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this In the middle of the right of invention.

Claims (10)

1. an emery wheel can the screw rod grinding attachment of restoring on line, it is characterised in that: include for installing screw rod and driving screw rod Around axis rotation screw rod workbench, be arranged at the described horizontal side of screw rod workbench the sand that can move along screw rod radial level Wheel carrier, by can vertically slide and can be installed in the way of horizontal direction rotation the rotary table of described grinding carriage with And it is installed on emery wheel and the dresser of described rotary table simultaneously.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: described revolution work The table top of platform is positioned at perpendicular, and the rotating shaft of rotary table is put down by the geometric center of described emery wheel, the axis of emery wheel Row is provided with for driving emery wheel to drive motor around the emery wheel of axial rotation on the table top and this table top of rotary table.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: described dresser bag Including that two is coaxially fixing and crushing dish that the axis of axis and described emery wheel are parallel to each other, crushing dish described in two is with can edge Its mode axially and radially reciprocatingly slided coordinates with described rotary table.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: described revolution work Be additionally provided with crushing disk-drive motor on platform, crushing dish is adjusted axially motor and crushing dish radially adjusts electricity Machine, described crushing dish is adjusted axially motor and crushing dish is radially adjusted motor and driven by a leading screw and nut mechanism respectively Dynamic crushing dish axially and radially reciprocatingly slides along it.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: also include T-shaped bed Body, described T-shaped lathe bed is provided with horizontally disposed and orthogonal longitudinal slide rail and horizontal slide rail;Described longitudinal slide rail It is respectively used to be slidably matched with screw rod workbench and grinding carriage with horizontal slide rail.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: described grinding carriage edge Vertical direction is provided with upright slide rail and is sliding combined with upright slide block by this upright slide rail, and described rotary table is rotatably pacified It is loaded on this upright slide block.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: also include for driving The turntable driving motor that dynamic described rotary table rotates, described turntable driving motor drives described returning by worm and worm gear Revolving worktable rotates.
Emery wheel the most according to claim 7 can the screw rod grinding attachment of restoring on line, it is characterised in that: described emery wheel drives Motor drives described emery wheel to be rotated about axis by the way of V belt translation.
Emery wheel the most according to claim 1 can the screw rod grinding attachment of restoring on line, it is characterised in that: also include for surveying Measure the detection device of screw size and the detection data of measurement apparatus can be received and control what emery wheel was repaired by dresser Processor.
Emery wheel the most according to claim 9 can the screw rod grinding attachment of restoring on line, it is characterised in that: described detection dress Being set to the three-dimensional coordinates measurement module for detecting Screw Parameters, described processor can calculate emery wheel by the Screw Parameters recorded Trim amount also controls the finishing action of dresser.
CN201610716849.8A 2016-08-24 2016-08-24 Grinding wheel can restoring on line screw rod grinding attachment Active CN106272079B (en)

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Application Number Priority Date Filing Date Title
CN201610716849.8A CN106272079B (en) 2016-08-24 2016-08-24 Grinding wheel can restoring on line screw rod grinding attachment

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Application Number Priority Date Filing Date Title
CN201610716849.8A CN106272079B (en) 2016-08-24 2016-08-24 Grinding wheel can restoring on line screw rod grinding attachment

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CN106272079B CN106272079B (en) 2019-07-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108453269A (en) * 2017-01-31 2018-08-28 株式会社Kmc Processing unit (plant)
CN110587402A (en) * 2019-09-03 2019-12-20 南通大学 Method and device for detecting and trimming end face grinding wheel quality in real time
CN110815046A (en) * 2019-11-15 2020-02-21 浙江百瑞传动科技有限公司 Thread grinder with dresser and main shaft integrally assembled
CN113560970A (en) * 2021-08-07 2021-10-29 溧阳市腾新机电设备有限公司 Machine tool for machining face gear

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Publication number Priority date Publication date Assignee Title
GB2163683A (en) * 1984-08-28 1986-03-05 Schaudt Maschinenbau Gmbh Thread grinding method and machine
CN2455426Y (en) * 2000-12-23 2001-10-24 扬州扬大三联模具有限公司 Screw rod grinder
CN2721295Y (en) * 2004-07-09 2005-08-31 王隆太 Digital controlled screw grinding machine
CN102528665A (en) * 2012-02-21 2012-07-04 陕西汉江机床有限公司 Novel numerical-control grinding wheel dressing device
CN103264325A (en) * 2013-05-16 2013-08-28 广州市敏嘉制造技术有限公司 Grinding machine tool for grinding dry screw rotor
CN105437032A (en) * 2015-12-15 2016-03-30 北京博鲁斯潘精密机床有限公司 Ultrahigh-precision numerically-controlled non-circular curved surface composite grinder

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163683A (en) * 1984-08-28 1986-03-05 Schaudt Maschinenbau Gmbh Thread grinding method and machine
CN2455426Y (en) * 2000-12-23 2001-10-24 扬州扬大三联模具有限公司 Screw rod grinder
CN2721295Y (en) * 2004-07-09 2005-08-31 王隆太 Digital controlled screw grinding machine
CN102528665A (en) * 2012-02-21 2012-07-04 陕西汉江机床有限公司 Novel numerical-control grinding wheel dressing device
CN103264325A (en) * 2013-05-16 2013-08-28 广州市敏嘉制造技术有限公司 Grinding machine tool for grinding dry screw rotor
CN105437032A (en) * 2015-12-15 2016-03-30 北京博鲁斯潘精密机床有限公司 Ultrahigh-precision numerically-controlled non-circular curved surface composite grinder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108453269A (en) * 2017-01-31 2018-08-28 株式会社Kmc Processing unit (plant)
CN110587402A (en) * 2019-09-03 2019-12-20 南通大学 Method and device for detecting and trimming end face grinding wheel quality in real time
CN110587402B (en) * 2019-09-03 2021-09-17 南通大学 Method and device for detecting and trimming end face grinding wheel quality in real time
CN110815046A (en) * 2019-11-15 2020-02-21 浙江百瑞传动科技有限公司 Thread grinder with dresser and main shaft integrally assembled
CN113560970A (en) * 2021-08-07 2021-10-29 溧阳市腾新机电设备有限公司 Machine tool for machining face gear
CN113560970B (en) * 2021-08-07 2022-07-22 溧阳市腾新机电设备有限公司 Machine tool for machining face gear

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