CN202087908U - Main shaft system of electrochemical micromachining and micro-electric spark machining tool - Google Patents
Main shaft system of electrochemical micromachining and micro-electric spark machining tool Download PDFInfo
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- CN202087908U CN202087908U CN2011201651088U CN201120165108U CN202087908U CN 202087908 U CN202087908 U CN 202087908U CN 2011201651088 U CN2011201651088 U CN 2011201651088U CN 201120165108 U CN201120165108 U CN 201120165108U CN 202087908 U CN202087908 U CN 202087908U
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Abstract
The utility model relates to a main shaft system of a electrochemical micromachining and micro-electric spark machining tool, which comprises a power feeding device, a middle main shaft transmission device, a ceramic bearing device, a micro-tool electrode tapered positioning device and an array hole vibration damping structure device, wherein the power feeding device comprises a power feeding gasket, an adjusting knob, a power feeding supporting frame and a stainless steel ball; the middle main shaft transmission device comprises a servo motor, a belt pulley of the servo motor, a shaft-end belt pulley of a middle main shaft, a middle main shaft, an upper end closure, a small belt pulley of the middle main shaft, a lower end closure, a belt pulley of a main shaft, the main shaft and a middle polyformaldehyde block; the ceramic bearing device comprises a V-shaped bearing fixing frame and a V-shaped ceramic bearing; the micro-tool electrode tapered positioning device comprises a tapered locating sleeve and a micro-tool electrode; and the array hole vibration damping structure device comprises supporting plates. The main shaft system can be used for realizing the electrochemical micromachining and micro-electric spark machining; and the main shaft system has a simple structure and strong practical applicability and can be used for increasing the rotation accuracy of the main shaft; and compared with the cost of other main shafts for micro-machining, the cost of the main shaft system is obviously reduced.
Description
Technical field
The utility model is the axis system of a kind of micro-electrochemical machining and fine electric spark machining tool, can carry out micro-electrochemical machining processing and fine electric spark processing, belongs to the renovation technique of non-traditional machine tool axis system.
Background technology
Along with present manufacturing technology level progressively develops to the direction of microminiaturization, precise treatment, special process method then has the advantage on the principle.Special process method belongs to noncontact processing more, does not generally have the cutting force effect of macroscopic view, and therefore irreplaceable superiority is arranged in the processing of miniature scale part.Fine electric spark processing method and micro-electrochemical machining processing method belong to special process field.
Electrolyzed Processing is little refining make a kind of, be to utilize anodic solution takes place in electrolyte metal principle to work the work piece into a kind of special process method of type, remarkable advantages such as having and do not have macroforce in the process, the range of work is wide, productivity ratio is high, surface quality is good, tool cathode is lossless, be particularly suitable for the processing of difficult-to-machine material and complicated shape part, in industries such as weapons, automobile, medical equipment, electronics, mould, obtained extensive use.(electrochemical micro machining EMM) is meant (1 μ m～1mm), use Electrolyzed Processing and obtain high accuracy, microsize machining parts in the microfabrication scope in micro-electrochemical machining processing.In micro-electrochemical machining processing, workpiece material by ablation, can reach micron even nanoscale machining accuracy with the form of ion in theory, and except that the advantage with Electrolyzed Processing, micro-electrochemical machining processing also has characteristics such as Equipment Requirement height, machining gap are little.
Spark machined is a kind of processing method of the galvanic action ablation conductive material that produces when utilizing the two poles of the earth droped beat impulse electricity be immersed in the working solution.Spark machined has following characteristics: can process any high strength, high rigidity, high tenacity, high fragility and highly purified conductive material; Adding does not have obvious mechanical force man-hour, is applicable to the processing of low rigidity workpiece and fine structure.
Micro-electrochemical machining processing and fine electric spark processing generally all are to adopt motor transmission power to give main shaft or electric main axle structure.Easily the vibration transmission of motor is influenced machining accuracy to main shaft again for the main shaft mode with motor transmission power; Adopt electric main shaft mode price then generally than higher.The precision magnitude of fine electric machining processing is higher, except control corresponding system and processing monitoring system are required the height, the precision of electrical process machine and cost also are that electric machining is by widespread usage and fast-developing deciding factor, therefore it is necessary, also very promising to develop simple, lower-cost fine electric machining equipment.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and the axis system of a kind of micro-electrochemical machining processing that can realize and fine electric spark machining tool is provided.The present invention is simple in structure, practical, can improve the rotating accuracy of main shaft, and obviously reduces with respect to other main shaft costs that carry out microfabrication.
The technical solution of the utility model is: the axis system of micro-electrochemical machining of the present utility model and fine electric spark machining tool, include electricity-supply device, middle spindle gearing, ceramic bearing device, fine tool-electrode taper positioner and array hole vibration-proof structure device, wherein electricity-supply device includes into electric pad, adjusting knob, advances electric bracing frame, stainless steel ball; Middle spindle gearing comprises servomotor, servomotor belt wheel, middle main-axis end belt wheel, middle main shaft, upper end cover, middle main shaft small pulley, bottom end cover, main shaft belt wheel, main shaft, middle polyformaldehyde piece; The ceramic bearing device comprises V-type bearing fixing frame and V-type ceramic bearing; Fine tool-electrode taper positioner comprises taper positioning sleeve, fine tool-electrode; The array hole vibration-proof structure is made up of gripper shoe, and adjusting knob is fixed on the into electric bracing frame, enters the top that electric pad is fastened on adjusting knob, and adjusting knob is installed on the stainless steel ball, and stainless steel ball is connected with main shaft; Above-mentioned servomotor is installed on the middle polyformaldehyde piece, the servomotor belt wheel is fixed on the output shaft of servomotor, the axle head of main shaft in the middle of middle main-axis end belt wheel is fixed on, the two supports of middle main shaft is at upper end cover and bottom end cover, middle main shaft small pulley and main shaft belt wheel are fixed on respectively on middle main shaft and the main shaft, be connected with the one-level belt between servomotor belt wheel and the main shaft belt wheel, be connected with second belt between middle main shaft small pulley and the middle main-axis end belt wheel; Above-mentioned V-type ceramic bearing is fixed on the V-type bearing fixing frame; Above-mentioned fine tool-electrode is installed on the main shaft, and the taper positioning sleeve is connected with the main shaft lower end, and the taper positioning sleeve withstands the lower end of the fine tool-electrode conical surface, and fine tool-electrode is connected with main shaft; Two parallel gripper shoes are fixed on the main shaft fixed head, and middle polyformaldehyde piece is installed between the two parallel gripper shoes, on the polyformaldehyde piece, advance electric bracing frame and are fixed on the V-type bearing fixing frame in the middle of V-type bearing fixing frame is fixed on.
Above-mentioned two parallel gripper shoes are fixed on the main shaft fixed head by bolt; Middle polyformaldehyde piece is installed between the two parallel gripper shoes by bolt; V-type bearing fixing frame is fixed on the middle polyformaldehyde piece by four fastening bolts; Advancing electric bracing frame is fixed on the V-type bearing fixing frame by fastening bolt.
Above-mentioned adjusting knob is fixed on the into electric bracing frame by helicitic texture; Enter electric pad is fastened on adjusting knob with screw top.
Above-mentioned adjusting knob and stainless steel ball are by the form location of sphere and plane contact, and stainless steel ball is connected with main shaft by the pit on the end face of main shaft upper end.
Above-mentioned servomotor is installed on the middle polyformaldehyde piece with screw by the flange installed surface of its upper end; The servomotor belt wheel is fixed on the servo motor shaft by screw, the axle head of main shaft in the middle of middle main-axis end belt wheel is fixed on by screw.
An end of main shaft is bearing on the upper end cover by upper corners contact bearing, upper end circlip in the middle of above-mentioned, and the other end of middle main shaft is bearing on the bottom end cover by lower end circlip, lower end angular contact bearing.
Main shaft small pulley and main shaft belt wheel are fixed on middle main shaft and the main shaft by screw respectively in the middle of above-mentioned.
Above-mentioned V-type ceramic bearing is fixed on the V-type bearing fixing frame by step on the V-type bearing fixing frame and V face.
Above-mentioned fine tool-electrode is installed in the bellmouth of main shaft end face by the conical surface of its rear end; Above-mentioned taper positioning sleeve is connected with the main shaft lower end by screw thread.
Have array hole on the above-mentioned two parallel gripper shoes.
The utility model compared with prior art has following advantage:
1) compress by the pit on the main shaft end face with stainless steel ball and main shaft and contact conduction and replace traditional brush and conducting slip ring structure, reduced cost largely, framework is convenient and easy; And can directly change after the stainless steel ball wearing and tearing, convenient and easy.
2) regulate the adjusting knob of stainless steel ball upper end, can realize the fine adjustments of main spindle's, make the pretightning force of second belt reach the numerical value that is fit to processing.
3) the power transmission policy of main shaft transition in the middle of the employing has been isolated the transmission of vibrating between servomotor and the main shaft, is beneficial to guarantee the main shaft precision; Increased middle one-level, can be stable obtain bigger gear ratio.
4) the V-type ceramic bearing becomes the line contact of the face contact of common rolling bearing into sliding bearing, and is simple in structure; And can take off replacing at the V-type ceramic bearing, the Operation and Maintenance of being convenient to simple to operate.
5) mid portion adopts polyformaldehyde material, and it has combination property such as rigidity and absorbing preferably, can alleviate integrally-built weight; Have array hole on the supported on both sides plate, but weight reduction and promote in the process to produce scattering and disappearing as early as possible of heat reduces the integrally-built thermal deformation that causes because of variations in temperature; The polyformaldehyde material structure can effectively prevent the influence of stray capacitance to processing.
6) the accurate installation location of tool-electrode and simple in structure can be realized maintaining in the micro-electrode taper positioner accurate installation location of realizing fine tool-electrode with the conical surface.
The utility model is that a kind of design is ingenious, function admirable, the axis system of convenient and practical micro-electrochemical machining and fine electric spark machining tool.
Description of drawings
Fig. 1 is the side view of embodiment of the invention machine-tool spindle system structure;
Fig. 2 is the front view of embodiment of the invention machine-tool spindle system structure;
Fig. 3 is the A-A cutaway view among Fig. 2;
Fig. 4 is the partial view at B place among Fig. 3;
Fig. 5 is the structural representation of V-type ceramic bearing in the embodiment of the invention machine-tool spindle system.
Among the figure: 1, gripper shoe, 2, the servomotor belt wheel, 3, the one-level belt, 4, middle main-axis end belt wheel, 5, adjusting knob, 6, stainless steel ball, 7, advance electric bracing frame, 8, second belt, 9, the main shaft belt wheel, 10, main shaft, 11, V-type bearing fixing frame, 12, the taper positioning sleeve, 13, the main shaft fixed head, 14, the upper corners contact bearing, 15, the upper end circlip, 16, upper end cover, 17, middle main shaft small pulley, 18, servomotor, 19, middle polyformaldehyde piece, 20, bottom end cover, 21, the lower end angular contact bearing, 22, middle main shaft, 23, the lower end circlip, 24, fine tool-electrode, 25, the V-type ceramic bearing, 26, advance electric pad.
The specific embodiment
Embodiment:
Structural representation of the present utility model is shown in Fig. 1,2,3,4, embodiment is: shown in Fig. 1,2,3,4,5, the present invention includes following components: include electricity-supply device, middle spindle gearing, ceramic bearing device, fine tool-electrode taper positioner and array hole vibration-proof structure device.The specific embodiment of each part is as follows:
In the present embodiment, electricity-supply device is formed by advancing electric pad 26, adjusting knob 5, stainless steel ball 6, main shaft 10, taper positioning sleeve 12 and fine tool-electrode 24.Enter the upper end that electric pad 26 is located at adjusting knob 5, fix by trip bolt, power line is connected on the into electric pad 26; Adjusting knob 5 is located on the into electric bracing frame 7, by screw thread with to advance electric bracing frame 7 hinged; Adjusting knob 5 contacts with 6 of stainless steel balls, realizes the transmission of electric current; Fine tool-electrode 24 contact by the taper surface of rear end and the tapered blind hole of main shaft 10 lower ends, through taper positioning sleeve 12 withstand the fine tool-electrode 24 rear end conical surfaces and make that itself and main shaft 10 are tight to be contacted and realize locating; Taper positioning sleeve 12 is hinged with main shaft 10 lower ends through being threaded, and the process of tightening can be withstood the big conical surface end of fine tool-electrode 24.Above-mentioned adjusting knob 5 is fixed on by external screw thread in the screwed hole of electric bracing frame into, can turn drives main shaft 10 and regulates upper-lower positions, makes the belt between main shaft and the middle main shaft maintain suitable pretightning force; The upper end of above-mentioned stainless steel ball 6 and adjusting knob 5 are by sphere and plane contact location, and the lower end is connected with main shaft by the bowl configurations of main shaft upper surface, realize fixed installation and conduction.Better because of the hardness and the wearability of adjusting knob 5 and main shaft 10, the hardness of stainless steel ball 6 is relative with wearability less, and stainless steel ball 6 can wear and tear in the long-time rotary course, but can in time take off replacing, and is very convenient.
In the present embodiment, middle spindle gearing is made up of servomotor 18, servomotor belt wheel 2, one-level belt 3, middle main-axis end belt wheel 4, middle main shaft 22, upper end cover 16, upper corners contact bearing 14, upper end circlip 15, middle main shaft small pulley 17, second belt 8, lower end circlip 23, lower end angular contact bearing 21, bottom end cover 20, main shaft belt wheel 9, main shaft 10, taper positioning sleeve 12, fine tool-electrode 24 and middle polyformaldehyde piece 19.Servomotor 18 is installed on the middle polyformaldehyde piece 19 with screw by the flange installed surface of its upper end; Servomotor belt wheel 2 is connected location by intermediate throughholes with servomotor 18 main shafts and middle main shaft 22 with middle main-axis end belt wheel 4, and fix with screw-driving by the tapped blind hole on counter sink on the belt wheel and the axle, moment sidewall through trip bolt from the axle transfers on the belt wheel; One-level belt 3 is installed in the belt grooves of servomotor belt wheel 2 and middle main-axis end belt wheel 4, and power is by the transmission of the frictional force between one-level belt 3 and two belt wheels; In the middle of being fixed on, upper end cover 16 usefulness screws on the polyformaldehyde piece 19, withstand upper corners contact bearing 14 outer rings; The outer ring of upper corners contact bearing 14 is fixed by the step of upper end cover 16 and middle polyformaldehyde piece 19 respectively, and the upper end circlip 15 in the middle of inner ring is installed in the fluting of main shaft 22 is fixing; In the middle of being fixed on, bottom end cover 20 usefulness screws on the polyformaldehyde piece 19, withstand lower end angular contact bearing 21 outer rings; The outer ring of lower end angular contact bearing 21 is fixed by the step of bottom end cover 20 and middle polyformaldehyde piece 19 respectively, and the lower end circlip 23 in the middle of inner ring is installed in the fluting of main shaft 22 is fixing; Middle main shaft small pulley 17 via through holes are installed on the middle main shaft 22, and tighten fixing with sunk screw; Main shaft belt wheel 9 via through holes are installed on the main shaft 10, and tighten fixing with sunk screw, second belt 8 tilts to be installed in the trough of belt of main shaft belt wheel 9 and middle main shaft small pulley 4, relies on frictional force between belt wheel and the second belt to realize transmission and to the effect of upwards drawing of main shaft belt wheel.
In the present embodiment, the ceramic bearing device is the V-type ceramic bearing structure, is made of V-type ceramic bearing 25 and V-type bearing fixing frame 11.Wherein V-type ceramic bearing 25 is located on the V-type bearing fixed seat 11, retrain the free degree of V-type ceramic bearing 25 horizontal directions by the V face of V-type bearing fixed seat 11, V-type bearing fixed seat 11V face place gets the free degree of small stair constraint V-type ceramic bearing 25 vertical directions, main shaft is subjected to the pulling force of second belt 8 simultaneously and compresses V-type ceramic bearing 25, and is whole in conjunction with having realized accurately installing and fixing of V-type ceramic bearing 25.
In the present embodiment, main shaft 10 is subjected to the pulling force of second belt 8 and is pressed on simultaneously on two V-type ceramic bearings 25, realizes the installation location of horizontal direction; Second belt 8 tilts to install, and main shaft 10 is had a pulling force that makes progress, and main shaft 10 upper ends are connected with stainless steel ball 6 by bowl configurations, is subjected to the downward power of stainless steel ball 6, thereby makes main shaft 10 in the vertical directions realize accurately installing and fixing.
In the present embodiment, second belt 8 and main shaft belt wheel 9 are in conjunction with the transmission that has realized main shaft 10 torques, and main shaft belt wheel 9 is located at the middle part of two V-type ceramic bearings 25 of main shaft, is different from the kind of drive that conventional belt wheel is installed in main shaft one end.
In the present embodiment, on the parallel gripper shoe 1 of both sides symmetrically have an array hole, when alleviating the main axle structure overall weight, can realize in time shedding of heat that whole system produces, reduce to process heat and make structure produce thermal deformation; Polyformaldehyde piece 19 is used polyformaldehyde material in the middle of the fixing body of middle main shaft 22 and servomotor 18, has realized alleviating of overall weight, and the polyformaldehyde material combination property is good, can satisfy performance requirement, reduces cost.
Operation principle of the present utility model is as follows: after the energising, electric current transfers on the fine tool-electrode 24 through advancing electric pad 26, adjusting knob 5, stainless steel ball 6, main shaft 10 and taper positioning sleeve 12, between the little gap between fine tool-electrode 24 and the processing work, realize Electrolyzed Processing or spark machined, can take off easily after stainless steel ball 6 wearing and tearing and change with the electrolyte effect; Power transfers to main shaft belt wheel 9 by servomotor 18 through one-level belt 3 and second belt 8, and then drive main shaft 10 and the 24 realization rotations of fine tool-electrode, these centre main shaft 22 transition structures have absorbed the vibration that produces in the motor rotation process, have eliminated the influence to main shaft 10 precision; Main shaft 10 closely contacts realization horizontal direction location by the oblique pulling force effect of second belt 8 with V-arrangement ceramic bearing 25, and V-arrangement ceramic bearing 25 upper ends contact with stainless steel ball 6 realizes the vertical direction location; Vibration in 19 pairs of whole process of middle polyformaldehyde piece all has tangible absorption and elimination effect, can play the effect that guarantees precision.
Claims (10)
1. the axis system of micro-electrochemical machining and fine electric spark machining tool, it is characterized in that including electricity-supply device, middle spindle gearing, ceramic bearing device, fine tool-electrode taper positioner and array hole vibration-proof structure device, wherein electricity-supply device include into electric pad (26), adjusting knob (5), advance electric bracing frame (7), stainless steel ball (6); Middle spindle gearing comprises servomotor (18), servomotor belt wheel (2), middle main-axis end belt wheel (4), middle main shaft (22), upper end cover (16), middle main shaft small pulley (17), bottom end cover (20), main shaft belt wheel (9), main shaft (10), middle polyformaldehyde piece (19); The ceramic bearing device comprises V-type bearing fixing frame (11) and V-type ceramic bearing (25); Fine tool-electrode taper positioner comprises taper positioning sleeve (12), fine tool-electrode (24); The array hole vibration-proof structure is made up of gripper shoe (1), adjusting knob (5) is fixed on the into electric bracing frame (7), enter the top that electric pad (26) is fastened on adjusting knob (5), adjusting knob (5) is installed on the stainless steel ball (6), and stainless steel ball (6) is connected with main shaft (10); Above-mentioned servomotor (18) is installed on the middle polyformaldehyde piece (19), servomotor belt wheel (2) is fixed on the output shaft of servomotor (18), the axle head of main shaft (22) in the middle of middle main-axis end belt wheel (4) is fixed on, the two supports of middle main shaft (22) is at upper end cover (16) and bottom end cover (20), middle main shaft small pulley (17) and main shaft belt wheel (9) are fixed on respectively on middle main shaft (22) and the main shaft (10), be connected with one-level belt (3) between servomotor belt wheel (2) and the main shaft belt wheel (9), be connected with second belt (8) between middle main shaft small pulley (17) and the middle main-axis end belt wheel (4); Above-mentioned V-type ceramic bearing (25) is fixed on the V-type bearing fixing frame (11); Above-mentioned fine tool-electrode (24) is installed on the main shaft (10), taper positioning sleeve (12) is connected with main shaft (10) lower end, and taper positioning sleeve (12) withstands the lower end of fine tool-electrode (24) conical surface, and fine tool-electrode (24) is connected with main shaft (10); Two parallel gripper shoes (1) are fixed on the main shaft fixed head (13), middle polyformaldehyde piece (19) is installed between the two parallel gripper shoes (1), on the polyformaldehyde piece (19), advance electric bracing frame (7) and be fixed on the V-type bearing fixing frame (11) in the middle of V-type bearing fixing frame (11) is fixed on.
2. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that above-mentioned two parallel gripper shoes (1) are fixed on the main shaft fixed head (13) by bolt; Middle polyformaldehyde piece (19) is installed between the two parallel gripper shoes (1) by bolt; " V " profile shaft holds fixed mount (11) and is fixed on the middle polyformaldehyde piece (19) by four fastening bolts; Advancing electric bracing frame (7) is fixed on the V-type bearing fixing frame (11) by fastening bolt.
3. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that above-mentioned adjusting knob (5) is fixed on the into electric bracing frame (7) by helicitic texture; Enter electric pad (26) is fastened on adjusting knob (5) with screw top.
4. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool, it is characterized in that above-mentioned adjusting knob (5) and stainless steel ball (6) the form location by sphere and plane contact, stainless steel ball (6) is connected with main shaft (10) by the pit on the end face of main shaft (10) upper end.
5. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that above-mentioned servomotor (18) is installed on the middle polyformaldehyde piece (19) with screw by the flange installed surface of its upper end; Servomotor belt wheel (2) is fixed on servomotor (18) axle by screw, the axle head of main shaft (22) in the middle of middle main-axis end belt wheel (4) is fixed on by screw.
6. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool, an end that it is characterized in that above-mentioned middle main shaft (22) is bearing on the upper end cover (16) by upper corners contact bearing (14), upper end circlip (15), and the other end of middle main shaft (22) is bearing on the bottom end cover (20) by lower end circlip (23), lower end angular contact bearing (21).
7. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that above-mentioned middle main shaft small pulley (17) and main shaft belt wheel (9) are fixed on middle main shaft (22) and the main shaft (10) by screw respectively.
8. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that above-mentioned V-type ceramic bearing (25) is fixed on the V-type bearing fixing frame (11) by step on the V-type bearing fixing frame (11) and V face.
9. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that above-mentioned fine tool-electrode (24) is installed in the bellmouth of main shaft end face by the conical surface of its rear end; Above-mentioned taper positioning sleeve (12) is connected with main shaft (10) lower end by screw thread.
10. the axis system of micro-electrochemical machining according to claim 1 and fine electric spark machining tool is characterized in that having array hole on the above-mentioned two parallel gripper shoes (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201651088U CN202087908U (en) | 2011-05-23 | 2011-05-23 | Main shaft system of electrochemical micromachining and micro-electric spark machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201651088U CN202087908U (en) | 2011-05-23 | 2011-05-23 | Main shaft system of electrochemical micromachining and micro-electric spark machining tool |
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| Publication Number | Publication Date |
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| CN202087908U true CN202087908U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201651088U Expired - Fee Related CN202087908U (en) | 2011-05-23 | 2011-05-23 | Main shaft system of electrochemical micromachining and micro-electric spark machining tool |
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| CN (1) | CN202087908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218575A (en) * | 2011-05-23 | 2011-10-19 | 广东工业大学 | Main shaft system of micro electrolytic and micro electro sparking processing machine tool |
| CN102767563A (en) * | 2012-07-11 | 2012-11-07 | 清华大学 | Rolling auxiliary bearing and auxiliary bearing system |
| CN107414220A (en) * | 2017-09-21 | 2017-12-01 | 陈银 | A kind of novel point spark processing unit (plant) |
-
2011
- 2011-05-23 CN CN2011201651088U patent/CN202087908U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218575A (en) * | 2011-05-23 | 2011-10-19 | 广东工业大学 | Main shaft system of micro electrolytic and micro electro sparking processing machine tool |
| CN102218575B (en) * | 2011-05-23 | 2016-12-21 | 广东工业大学 | A kind of micro-electrochemical machining and the axis system of Micro Edm Machine Tools |
| CN102767563A (en) * | 2012-07-11 | 2012-11-07 | 清华大学 | Rolling auxiliary bearing and auxiliary bearing system |
| CN107414220A (en) * | 2017-09-21 | 2017-12-01 | 陈银 | A kind of novel point spark processing unit (plant) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20190523 |