CN202240906U - On-line dressing device for electric spark formed grinding wheel - Google Patents
On-line dressing device for electric spark formed grinding wheel Download PDFInfo
- Publication number
- CN202240906U CN202240906U CN2011203797563U CN201120379756U CN202240906U CN 202240906 U CN202240906 U CN 202240906U CN 2011203797563 U CN2011203797563 U CN 2011203797563U CN 201120379756 U CN201120379756 U CN 201120379756U CN 202240906 U CN202240906 U CN 202240906U
- Authority
- CN
- China
- Prior art keywords
- grinding wheel
- dresser
- pressing plate
- formed grinding
- bolt
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an on-line dressing device for an electric spark formed grinding wheel, and relates to a formed grinding wheel dressing device, which solves the problems that the conventional on-line dressing device for the formed grinding wheel has a large volume and is not suitable for dressing the formed grinding wheel on line in an ultra-precise machine tool grinding system. A horizontal plate is connected with a first pressing plate in a detachable manner; a first connecting bolt is arranged in a height adjusting hole in a second pressing plate and is in threaded connection with the first pressing plate and a third pressing plate; a height adjusting bolt is in threaded connection with the horizontal plate and a fastening nut; the fastening nut is arranged on the second pressing plate; a sliding block is connected with a sliding block box body in a sliding manner; a measuring end of a screw micrometer is pressed against the sliding block; one end of a guide rod is arranged in a blind hole of the sliding block, and the other end of the guide rod is fixedly arranged on a spring baffle plate; a first compression spring is sleeved on the guide rod; a conductive bolt of the formed grinding wheel and a conductive bolt of a grinding wheel dresser are connected with positive and negative poles of a pulse power supply through conducting wires; and the grinding wheel dresser is fastened on an output shaft of a motor. The on-line dressing device is used for reshaping and dressing the formed grinding wheel on line.
Description
Technical field
The utility model relates to a kind of Forming Wheel Dressing device.
Background technology
Along with the development of modern science and technology, in novel high-performance, high accuracy, high integrated photonics, be that the optics of raw material manufacturing has obtained application widely with hard brittle materials such as optical glass and devitrified glasses.At present, the domestic lathe with certain precision of can having developed carries out grinding to optical element, and has developed the online trimming device of formed grinding wheel.But because the existing online trimming device of formed grinding wheel receives the influence of physical dimension, volume is bigger, is not suitable in some ultra-precision machine tool grinding systems, formed grinding wheel being carried out online finishing.
The utility model content
The utility model has the influence that the online trimming device of formed grinding wheel receives physical dimension now for solving; Volume is bigger; Be not suitable in some ultra-precision machine tool grinding systems, formed grinding wheel being carried out the problem of online finishing, and then provide a kind of spark-erosion sinking emery wheel online trimming device.
The utility model is to address the above problem the technical scheme of taking to be: the online trimming device of spark-erosion sinking emery wheel, and the online trimming device of said formed grinding wheel comprises coupling assembling, dresser, dresser electric installation, formed grinding wheel electric installation and dresser whirligig; Said coupling assembling comprises level board, height adjuster and horizontal feed device; Said height adjuster comprises fastening nut, height adjustment bolt, first pressing plate, second pressing plate, first connecting bolt and the 3rd pressing plate; Said horizontal feed device comprises screw micrometer, slide block, the first compression spring, guide rod, spring stop and slide block casing; Said dresser whirligig comprises motor and motor supporting plate;
First pressing plate, second pressing plate and the 3rd pressing plate all vertically are provided with; Second pressing plate places between first pressing plate and the 3rd pressing plate; One end of level board is connected with grinding system; The upper surface of the lower surface of level board and first pressing plate removably connects, and second pressing plate is equipped with threaded connection hole along vertically being provided with the height adjustment hole on first pressing plate and the 3rd pressing plate; First connecting bolt is contained in threaded connection hole on the 3rd pressing plate, the height adjustment hole and the threaded connection hole on first pressing plate on second pressing plate successively; And first connecting bolt is threaded with first pressing plate and the 3rd pressing plate, and the height adjustment bolt is threaded with level board and fastening nut, and fastening nut places on the upper surface of second pressing plate; The lower end of second pressing plate places on the upper surface of slide block casing; Slide block places in the slide block casing and with the slide block casing and is slidingly connected; The sidewall that the measuring junction of screw micrometer passes the slide block casing leans on a termination of slide block, and the length direction of another upper edge, termination slide block of slide block is processed with blind hole, and an end of guide rod is arranged in the blind hole; Be set with the first compression spring on the guide rod, the other end of guide rod is packed on the spring stop; Dresser conducting bolt in the dresser electric installation is connected through lead with the negative pole of the pulse power; Formed grinding wheel conducting bolt in the formed grinding wheel electric installation is connected through lead with the positive pole of the pulse power; Motor is fixed on the motor supporting plate, and dresser is fastened on the output shaft of motor, and motor supporting plate and slide block casing are affixed.
The beneficial effect of the utility model is: the utility model volume is little; Simple in structure, integral layout is compact, and is in light weight; Can carry out online shaping to Metal Substrate bond formed grinding wheel, be particularly suitable in some ultra-precision machine tool grinding systems, formed grinding wheel being carried out online finishing.
Description of drawings
Fig. 1 is the overall structure stereogram of the utility model; Fig. 2 is the overall structure front view of the utility model; Fig. 3 is the front view of dresser electric installation; Fig. 4 is the front view of dresser whirligig, and Fig. 5 is the front view of formed grinding wheel electric installation.
The specific embodiment
The specific embodiment one: combine Fig. 1-5 explanation; The online trimming device of spark-erosion sinking emery wheel of this embodiment, the online trimming device of said formed grinding wheel comprises coupling assembling 2, dresser 6, dresser electric installation, formed grinding wheel electric installation and dresser whirligig; Said coupling assembling 2 comprises level board 30, height adjuster and horizontal feed device; Said height adjuster comprises fastening nut 7, height adjustment bolt 8, the first pressing plates 9, second pressing plate 10, first connecting bolt 11 and the 3rd pressing plate 12; Said horizontal feed device comprises screw micrometer 13, slide block 14, the first compression spring 15, guide rod 16, spring stop 17 and slide block casing 31; Said dresser whirligig comprises motor 24 and motor supporting plate 26;
First pressing plate 9, second pressing plate 10 and the 3rd pressing plate 12 all vertically are provided with; Second pressing plate 10 places between first pressing plate 9 and the 3rd pressing plate 12; One end of level board 30 is connected with grinding system 1; The upper surface of the lower surface of level board 30 and first pressing plate 9 removably connects, and second pressing plate 10 is equipped with threaded connection hole along vertically being provided with on height adjustment hole 32, the first pressing plates 9 and the 3rd pressing plate 12; First connecting bolt 11 is contained in threaded connection hole on the 3rd pressing plate 12, the height adjustment hole 32 and the threaded connection hole on first pressing plate 9 on second pressing plate 10 successively; And first connecting bolt 11 is threaded with first pressing plate 9 and the 3rd pressing plate 12, and height adjustment bolt 8 is threaded with level board 30 and fastening nut 7, and fastening nut 7 places on the upper surface of second pressing plate 10; The lower end of second pressing plate 10 places on the upper surface of slide block casing 31; Slide block 14 places in the slide block casing 31 and with slide block casing 31 and is slidingly connected; The sidewall that the measuring junction of screw micrometer 13 passes slide block casing 31 leans on a termination of slide block 14; The length direction of another upper edge, termination slide block 14 of slide block 14 is processed with blind hole; One end of guide rod 16 is arranged in the blind hole, is set with the first compression spring 15 on the guide rod 16, and the other end of guide rod 16 is packed in (other end of guide rod 16 is spacing through spring stop 17) on the spring stop 17; Dresser conducting bolt 19 in the dresser electric installation is connected (upper surface of the dresser graphite electrode 23 in the dresser electric installation contacts with the lower surface of dresser 6) with the negative pole of the pulse power 3 through lead; Formed grinding wheel conducting bolt 33 in the formed grinding wheel electric installation is connected (upper surface of the formed grinding wheel graphite electrode 34 in the formed grinding wheel electric installation contacts with the lower surface of formed grinding wheel 35) with the positive pole of the pulse power 3 through lead; Motor 24 (through screw 25) is fixed on the motor supporting plate 26, and dresser 6 is fastened on the output shaft of motor 24, and motor supporting plate 26 is affixed with slide block casing 31.
The height control method of the dresser in this embodiment is: fastening nut 7 is unclamped, and rotation height adjustment bolt 8 moves up and down dresser 6 under the guide effect of first pressing plate 9 and second pressing plate 10; After adjusting the height of dresser 6; Tighten fastening nut 7, tighten first connecting bolt 11 simultaneously, under the clamping action of the 3rd pressing plate 12; The height of dresser 6 just no longer changes, and accomplishes the height adjustment of dresser 6.
The outer contour shape of the dresser in this embodiment matches with the outer contour shape of formed grinding wheel.
For realizing the horizontal feed motion of dresser 6, promote slide block 14 through rotating screw micrometer 13 and drive dresser 6 realization horizontal movements; For realizing the transmission of no gap; Compress the place ahead that spring 15 withstands slide block 14 with first; For preventing the first compression spring, 15 unstabilitys; Inner ring at the first compression spring 15 is with guide rod 16, and guide rod 16 is packed in (in this embodiment, guide rod 16 is packed on the spring stop 17 through screw thread) on the spring stop 17.
The specific embodiment two: combine Fig. 2 and Fig. 3 explanation, the said dresser electric installation of this embodiment comprises that dresser conducting bolt 19, second connecting bolt 20, dresser electrode connecting plate 21, second compress spring 22 and dresser graphite electrode 23; The first graphite electrode hole that dresser electrode connecting plate 21 is provided with the first vertical screwed hole and is communicated with the first vertical screwed hole; Dresser conducting bolt 19 is connected through lead with the negative pole of the pulse power 3; Dresser conducting bolt 19 is connected with second connecting bolt 20; Second connecting bolt 20 is threaded with the first vertical screwed hole of dresser electrode connecting plate 21; The first graphite electrode hole on dresser graphite electrode 23 and the dresser electrode connecting plate 21 is slidingly matched; The second compression spring 22 places in the vertical screwed hole of first on the dresser electrode connecting plate 21, and second compress spring 22 between second connecting bolt 20 and dresser graphite electrode 23, and dresser electrode connecting plate 21 is connected with spring stop 17.Other composition and annexation are identical with the specific embodiment one.
In this embodiment, through the second compression spring 22 dresser graphite electrode 23 is stretched out and move upward, withstand on the pivot of dresser 6, transmit pulse current.
The specific embodiment three: combine Fig. 2 and Fig. 5 explanation, the said formed grinding wheel electric installation of this embodiment comprises that formed grinding wheel conducting bolt 33, the 3rd connecting bolt 38, formed grinding wheel electrode connecting plate the 36, the 3rd compress spring 37 and formed grinding wheel graphite electrode 34; The second graphite electrode hole that formed grinding wheel electrode connecting plate 36 is provided with the second vertical screwed hole and is communicated with the second vertical screwed hole; Formed grinding wheel conducting bolt 33 is connected through lead with the positive pole of the pulse power 3; Formed grinding wheel conducting bolt 33 is connected with the 3rd connecting bolt 38; The 3rd connecting bolt 38 is threaded with the second vertical screwed hole of formed grinding wheel electrode connecting plate 36; Formed grinding wheel graphite electrode 34 is slidingly matched with the second graphite electrode hole of formed grinding wheel electrode connecting plate 36; The 3rd compression spring 37 places in the vertical screwed hole of second on the formed grinding wheel electrode connecting plate 36, and the 3rd compress spring 37 between the 3rd connecting bolt 38 and formed grinding wheel graphite electrode 34, and formed grinding wheel electrode connecting plate 36 is connected with grinding system 1.Other composition and annexation are identical with the specific embodiment one or two.
In this embodiment, through the 3rd compression spring 37 formed grinding wheel graphite electrode 34 is stretched out and move upward, withstand on the pivot of shaping sand 35, transmit pulse current.
The specific embodiment four: combine Fig. 2 and Fig. 4 to explain, the said dresser whirligig of this embodiment comprises and also comprises double nut 27; Dresser 6 is fastened on the output shaft of motor 24 through double nut 27.Other composition and annexation are identical with the specific embodiment one.
Motor 24 directly drives dresser 6 rotations during work, and identical with the direction of rotation of formed grinding wheel 35, rotating speed is different.
The specific embodiment five: combine Fig. 4 explanation, the online trimming device of the said formed grinding wheel of this embodiment also comprises motor cover 28; Motor cover 28 fastens and is fixed on the motor supporting plate 26.Other composition and annexation are identical with the specific embodiment three.
In this embodiment since dresser 6 are online finishings; The wheel grinding cooling fluid might splash on the motor 24 and burn out motor 24, makes motor 24 short circuits, for this reason; Fasten and be fixed on the motor supporting plate 26 with motor cover 28, realize the water-proofing treatment of motor 24.
The online trimming device of the spark-erosion sinking emery wheel of the utility model adopts suspended structure, is installed on the grinding system 1 through coupling assembling 2; The both positive and negative polarity of the pulse power 3 is connected on formed grinding wheel 35 and the dresser 6 through dresser electric installation and formed grinding wheel electric installation respectively, for dresser 6 and formed grinding wheel 35 provide pulse current; Realize electric discharge dressing; Rotatablely moving of dresser 6 driven by the motor that is installed in dresser 6 tops 24; Before the work, adjust the height of dresser 6 through height adjuster; During work; Dresser 6 and formed grinding wheel 35 are connected the both positive and negative polarity of the pulse power 3 respectively through dresser electrode connecting plate 21 and formed grinding wheel electrode connecting plate 36; Dresser 6 is done variable speed rotation in the same way with respect to formed grinding wheel 35; By regulating the horizontal feed of realizing dresser 6 manually, realize formed grinding wheel 35 online shapings.
Claims (5)
1. online trimming device of spark-erosion sinking emery wheel, it is characterized in that: the online trimming device of said formed grinding wheel comprises coupling assembling (2), dresser (6), dresser electric installation, formed grinding wheel electric installation and dresser whirligig; Said coupling assembling (2) comprises level board (30), height adjuster and horizontal feed device; Said height adjuster comprises fastening nut (7), height adjustment bolt (8), first pressing plate (9), second pressing plate (10), first connecting bolt (11) and the 3rd pressing plate (12); Said horizontal feed device comprises screw micrometer (13), slide block (14), the first compression spring (15), guide rod (16), spring stop (17) and slide block casing (31); Said dresser whirligig comprises motor (24) and motor supporting plate (26);
First pressing plate (9), second pressing plate (10) and the 3rd pressing plate (12) all vertically are provided with; Second pressing plate (10) places between first pressing plate (9) and the 3rd pressing plate (12); One end of level board (30) is connected with grinding system (1); The upper surface of the lower surface of level board (30) and first pressing plate (9) removably connects; Second pressing plate (10) is along vertically being provided with height adjustment hole (32); Be equipped with threaded connection hole on first pressing plate (9) and the 3rd pressing plate (12), first connecting bolt (11) is contained in threaded connection hole on the 3rd pressing plate (12), the height adjustment hole (32) and the threaded connection hole on first pressing plate (9) on second pressing plate (10) successively, and first connecting bolt (11) is threaded with first pressing plate (9) and the 3rd pressing plate (12); Height adjustment bolt (8) is threaded with level board (30) and fastening nut (7), and fastening nut (7) places on the upper surface of second pressing plate (10); The lower end of second pressing plate (10) places on the upper surface of slide block casing (31); Slide block (14) places in the slide block casing (31) and with slide block casing (31) and is slidingly connected; The sidewall that the measuring junction of screw micrometer (13) passes slide block casing (31) leans on a termination of slide block (14); The length direction of another upper edge, termination slide block (14) of slide block (14) is processed with blind hole; One end of guide rod (16) is arranged in the blind hole, is set with the first compression spring (15) on the guide rod (16), and the other end of guide rod (16) is packed on the spring stop (17); Dresser conducting bolt (19) in the dresser electric installation is connected through lead with the negative pole of the pulse power (3); Formed grinding wheel conducting bolt (33) in the formed grinding wheel electric installation is connected through lead with the positive pole of the pulse power (3); Motor (24) is fixed on the motor supporting plate (26), and dresser (6) is fastened on the output shaft of motor (24), and motor supporting plate (26) is affixed with slide block casing (31).
2. the online trimming device of spark-erosion sinking emery wheel according to claim 1 is characterized in that: said dresser electric installation comprises dresser conducting bolt (19), second connecting bolt (20), dresser electrode connecting plate (21), second compression spring (22) and the dresser graphite electrode (23); The first graphite electrode hole that dresser electrode connecting plate (21) is provided with the first vertical screwed hole and is communicated with the first vertical screwed hole; Dresser conducting bolt (19) is connected through lead with the negative pole of the pulse power (3); Dresser conducting bolt (19) is connected with second connecting bolt (20); Second connecting bolt (20) is threaded with the first vertical screwed hole of dresser electrode connecting plate (21); The first graphite electrode hole on dresser graphite electrode (23) and the dresser electrode connecting plate (21) is slidingly matched; The second compression spring (22) places in the first vertical screwed hole on the dresser electrode connecting plate (21); And the second compression spring (22) is positioned between second connecting bolt (20) and the dresser graphite electrode (23), and dresser electrode connecting plate (21) is connected with spring stop (17).
3. the online trimming device of spark-erosion sinking emery wheel according to claim 1 and 2 is characterized in that: said formed grinding wheel electric installation comprises formed grinding wheel conducting bolt (33), the 3rd connecting bolt (38), formed grinding wheel electrode connecting plate (36), the 3rd compression spring (37) and formed grinding wheel graphite electrode (34); The second graphite electrode hole that formed grinding wheel electrode connecting plate (36) is provided with the second vertical screwed hole and is communicated with the second vertical screwed hole; Formed grinding wheel conducting bolt (33) is connected through lead with the positive pole of the pulse power (3); Formed grinding wheel conducting bolt (33) is connected with the 3rd connecting bolt (38); The 3rd connecting bolt (38) is threaded with the second vertical screwed hole of formed grinding wheel electrode connecting plate (36); Formed grinding wheel graphite electrode (34) is slidingly matched with the second graphite electrode hole of formed grinding wheel electrode connecting plate (36); The 3rd compression spring (37) places in the second vertical screwed hole on the formed grinding wheel electrode connecting plate (36), and the 3rd compress spring (37) and be positioned between the 3rd connecting bolt (38) and the formed grinding wheel graphite electrode (34), and formed grinding wheel electrode connecting plate (36) is connected with grinding system (1).
4. the online trimming device of spark-erosion sinking emery wheel according to claim 1 is characterized in that: said dresser whirligig comprises and also comprises double nut (27); Dresser (6) is fastened on the output shaft of motor (24) through double nut (27).
5. the online trimming device of spark-erosion sinking emery wheel according to claim 3 is characterized in that: the online trimming device of said formed grinding wheel also comprises motor cover (28); Motor cover (28) fastens and is fixed on the motor supporting plate (26).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011203797563U CN202240906U (en) | 2011-09-28 | 2011-09-28 | On-line dressing device for electric spark formed grinding wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011203797563U CN202240906U (en) | 2011-09-28 | 2011-09-28 | On-line dressing device for electric spark formed grinding wheel |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202240906U true CN202240906U (en) | 2012-05-30 |
Family
ID=46102204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2011203797563U Expired - Fee Related CN202240906U (en) | 2011-09-28 | 2011-09-28 | On-line dressing device for electric spark formed grinding wheel |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202240906U (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103624684A (en) * | 2013-12-05 | 2014-03-12 | 湖南大学 | Electrospark trimming device for metal binding agent superabrasive formed grinding wheel for sawtooth processing |
CN104259802A (en) * | 2014-04-16 | 2015-01-07 | 池州市三力精工机械有限公司 | High-precision adjustable assembling device of chain wheels |
CN106132633A (en) * | 2014-03-31 | 2016-11-16 | 株式会社荏原制作所 | The cover of the component parts of lapping device, the component parts of lapping device and lapping device |
CN106312772A (en) * | 2016-10-31 | 2017-01-11 | 深圳市比克动力电池有限公司 | Polishing device of laser welding compression ring |
CN106959065A (en) * | 2017-05-16 | 2017-07-18 | 保定先奇电力设备技术有限公司 | A kind of pressure type bolt elongate measuring scale |
CN109732485A (en) * | 2019-03-20 | 2019-05-10 | 盛瑞传动股份有限公司 | A kind of camshaft retaining groove grinder |
CN116372811A (en) * | 2023-03-17 | 2023-07-04 | 江苏飞象数控设备有限公司 | Grinding wheel dressing device and dressing method for centerless grinding machine |
-
2011
- 2011-09-28 CN CN2011203797563U patent/CN202240906U/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103624684A (en) * | 2013-12-05 | 2014-03-12 | 湖南大学 | Electrospark trimming device for metal binding agent superabrasive formed grinding wheel for sawtooth processing |
CN106132633A (en) * | 2014-03-31 | 2016-11-16 | 株式会社荏原制作所 | The cover of the component parts of lapping device, the component parts of lapping device and lapping device |
CN106132633B (en) * | 2014-03-31 | 2018-11-27 | 株式会社荏原制作所 | The cover of the component parts of grinding device, the component parts of grinding device and grinding device |
CN104259802A (en) * | 2014-04-16 | 2015-01-07 | 池州市三力精工机械有限公司 | High-precision adjustable assembling device of chain wheels |
CN106312772A (en) * | 2016-10-31 | 2017-01-11 | 深圳市比克动力电池有限公司 | Polishing device of laser welding compression ring |
CN106959065A (en) * | 2017-05-16 | 2017-07-18 | 保定先奇电力设备技术有限公司 | A kind of pressure type bolt elongate measuring scale |
CN106959065B (en) * | 2017-05-16 | 2023-09-26 | 保定先奇电力设备技术有限公司 | Pressure type bolt elongation measuring scale |
CN109732485A (en) * | 2019-03-20 | 2019-05-10 | 盛瑞传动股份有限公司 | A kind of camshaft retaining groove grinder |
CN116372811A (en) * | 2023-03-17 | 2023-07-04 | 江苏飞象数控设备有限公司 | Grinding wheel dressing device and dressing method for centerless grinding machine |
CN116372811B (en) * | 2023-03-17 | 2023-10-20 | 江苏飞象数控设备有限公司 | Grinding wheel dressing device and dressing method for centerless grinding machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202240906U (en) | On-line dressing device for electric spark formed grinding wheel | |
CN202862003U (en) | Thread grinding wheel dressing device | |
CN202861907U (en) | Screw tap machining grinding machine | |
CN205438102U (en) | Crystal galss cup head of mill machine | |
CN205074903U (en) | Solid of revolution polishing arc limit burnishing device for production line | |
CN207155491U (en) | A kind of robot sanding apparatus | |
CN108515397A (en) | A kind of Full-automatic sheet metal grinding device | |
CN104369097A (en) | Cylindrical grinding device | |
CN205520842U (en) | Workable and conveniently install and remove grinding wheel's edger unit | |
CN210938593U (en) | Adjustable aluminum alloy die casting surface course grinding device | |
CN211708843U (en) | Centerless grinding forming and grinding structure | |
CN204019288U (en) | A kind of ball mill | |
CN201455753U (en) | Large plane vertical milling and grinding machine | |
CN204450193U (en) | A kind of peripheral milling device | |
CN214923312U (en) | Polishing equipment for machining connecting rod | |
CN203665257U (en) | Spherical pair automatic grinding device | |
CN212170191U (en) | Fixing device is used in electromechanical parts processing | |
CN201192803Y (en) | Full-automatic diamond grinding/polishing machine | |
CN203141120U (en) | Two-dimensional adjustable support for cutter bar machining | |
CN208466870U (en) | A kind of drawing machine | |
CN103223631B (en) | A kind of high-accuracy bearing ring surface grinding machine | |
CN205968527U (en) | Novel mill mill burnishing machine | |
CN205614147U (en) | Preparation on throne of fine tool electrode and trimming device | |
CN203471564U (en) | Machine tool strip grinding jig | |
CN205325425U (en) | Plunger ball head grinder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120928 |