CN201267951Y - Numerical control vertical type profile grinder - Google Patents
Numerical control vertical type profile grinder Download PDFInfo
- Publication number
- CN201267951Y CN201267951Y CNU2008202184461U CN200820218446U CN201267951Y CN 201267951 Y CN201267951 Y CN 201267951Y CN U2008202184461 U CNU2008202184461 U CN U2008202184461U CN 200820218446 U CN200820218446 U CN 200820218446U CN 201267951 Y CN201267951 Y CN 201267951Y
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- axle
- grinder
- rotating shaft
- precision
- shaft
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Abstract
The utility model relates to a vertical NC contour grinder that belongs to the technical field of the NC grinder. A C-shaft of the traditional NC contour grinder is power supplied by a worm and gear pair or a gear pair to rotate, and the rotation precision of the C shaft is low for the transmission chain is long and the power pair has the side gap, so that the entire grinder has low processing precision. A torque motor is adopted to directly drive the C shaft to rotate, and the rotation precision correction of a working platform is controlled by a coder, so that the dividing precision and the repeating dividing precision of the transmission structure can be improved by one time or more compared with that of the traditional contour grinder; at the same time, the NC contour grinder is free from the abrasion problem of the movement pair and has long-term stable application performance.
Description
Technical field
The utility model relates to a kind of digital control vertical profile grinder that belongs to the numerically control grinder technical field.
Background technology
A kind of as in the grinding machine series of numerical control contour grinder has a certain amount of demand on market.This class grinding machine main body is the vertical structure layout, have three numerical control axles, wherein two is the straight-line feed axle, be horizontal feed X-axis and vertical feed Z axle, diaxon is a cross balladeur train structure, drives the feed motion that bistrique is done both direction, and the another one axle is the C axle for rotating shaft, drive workbench and do the location rotation, workpiece is installed on the workbench.This class lathe major function is that disk-like accessory inside and outside circle curved profile, eccentric inner hole, cylindrical are carried out grinding.Principle is to utilize the function of X-axis and the interpolation of C axle to form the grinding contour track.At X---the Z axle can be done and decide journey shake in the C axle interpolation grinding process, to improve grinding surface roughness, can carry out thick, smart, the tarry matter processing of workpiece in proper order under the control of digitial controller, carry out the finishing and the compensation of emery wheel automatically.Yet the low problem of digital control vertical profile grinder ubiquity machining accuracy of China's production at present can not solve for a long time, and the development of incompatibility modern industry is to parts high accuracy and the high efficiency requirement of processing.Finally finding out in-problem crux through the careful scientific analysis of applicant, at first is not the problem of straight line numerical control axle, because the positioning accuracy of X-axis and Z axle is 0.006um, and repetitive positioning accuracy 0.004um, precision is very high.Subject matter is that traditional C shaft transmission itself exists defective, makes workbench rotation indexing accuracy low, thereby causes machining accuracy low.Traditional C axle power resources are in two kinds of mechanisms: a kind of is the worm and gear auxiliary driving, and another is the gear pair transmission.These two kinds of mechanisms cause the low reason of turntable precision as follows: 1. transmission chain length to workbench, can cause transmission rigidity to descend by servo process shaft coupling, worm couple (gear pair), main shaft; 2. there is sideshake in worm couple (gear pair), even if use two helical pitch worm screws, the reason owing to wearing and tearing after use a period of time also can produce sideshake.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of high-precision digital control vertical profile grinder of the C of cancellation shaft mechanical transmission for solving disadvantages of background technology.
The purpose of this utility model is achieved in that it is mainly by lathe bed, column, be located at the X-axis servo feed mechanism on the column, Z axle servo feed mechanism, the pneumatic system balanced controls, grinding spindle case and lubricating system, be located at the C axle workbench on the lathe bed, dresser and cooler bin system form, described C axle workbench is provided with work top, below work top and with work top, fixedly connected a rotating shaft, be fixed with the rotor of turntable bearing inner race and torque motor at the rotating shaft outer ring surface, be fixed with the centration axis concentric in the rotating shaft bottom with rotating shaft, centration axis lower end outer shroud is connected with the rotary encoder moving grid that is provided with, and the position corresponding with above-mentioned rotary part is provided with the stator of torque motor on the axle bed that lathe bed is provided with, rotary encoder fixed grid and turntable shaft bearing outer-ring.
The utility model is compared background sight technology and is had following advantage: 1., drive the workbench rotation by the direct drive shaft of torque motor because cancellation machine driving pair has shortened driving-chain greatly, make simplify the structure, integrated, improved the transmission integral stiffness; 2. owing to do not need those complicated mechanical transmissions, do not consider its processing and manufacturing problem so do not spend, more there are not wearing and tearing and sideshake problem, backlass when having eliminated counter-rotating, simultaneously also influence the turntable precision owing to the problem of driving member machining accuracy with regard to having avoided, so improved C axle indexing accuracy, and had permanent precision stability; 3. manufacturing and assembly technology are simple, need not to consider lubricating arrangement, and the serviceability long-term stability is safeguarded simple and convenient.
Description of drawings
Fig. 1 is a digital control vertical profile grinder structure principle chart.
Fig. 2 is the utility model C axle Working table structure schematic diagram.
The specific embodiment
The utility model is further described by embodiment below in conjunction with accompanying drawing: as shown in Figure 1, the utility model mainly partly is made up of lathe bed 1, column 2, C axle workbench 3, X-axis servo feed mechanism 4, Z axle servo feed mechanism 5, pneumatic system balanced controls 6, grinding spindle case 7, lubricating system 8, dresser 9, cooler bin system 10 etc.The utility model C axle Working table structure as shown in Figure 2, below work top 11, be fixed with rotating shaft 15 (for positioning rotating shaft 15 better, be provided with locating shaft 22 at the center of work top 11, and be provided with seal cover 23) in the locating shaft outer end, the torque motor rotor 13 and rotating shaft 15 outer ring surfaces that are provided with are fixed, and are provided with turntable bearing 21 in rotating shaft 15 upper ends.At the fixedly connected centration axis 20 in rotating shaft 15 lower ends, rotor positioning disk 16.The moving grid that connects rotary encoder 18 in centration axis 20 lower ends by locking nut 19.The stator 12 of torque motor is fixedlyed connected with axle bed 14 with stator positioning disk 17.Therefore this design feature is that torque motor directly drives the C axle and rotates, and rotary encoder 18 is as the position feedback control element, directly the accurate position of testing platform.Rotary encoder 18 is the most important elements of control C axle running accuracy, can be used as the sensor that accurately rotatablely moves with angular surveying.Torque motor is the action executive component, and it is the little inertia of a kind of built-in type, high moment of torsion output motor, from the frame for movement angle, the C axle has been played an effect that is equivalent to the control of full cut-off ring.Self precision of rotary encoder 18 directly determines the running accuracy of work top 11.The encoder pulse that the utility model is selected for use several 36000/ changes, and accuracy is ± 2 rads, the indexing accuracy of workbench is 8.5 rads, repeats 5.2 rads of indexing accuracies.This structure has been opened up very big space for further improving precision, and it is too dependent on mechanical transmission mechanism to traditional C axle rotation precision, becomes by signal of telecommunication element and digital control system to go control accuracy.The indexing accuracy of traditional structure workbench and repetition indexing accuracy all surpass 15 rads, and after using a period of time, owing to there are the wearing and tearing of gearing, precision also can obviously descend.
Claims (1)
1, a kind of digital control vertical profile grinder, it is mainly by lathe bed, column, be located at the X-axis servo feed mechanism on the column, Z axle servo feed mechanism, the pneumatic system balanced controls, grinding spindle case and lubricating system, be located at the C axle workbench on the lathe bed, dresser and cooler bin system form, it is characterized in that described C axle workbench is provided with work top, below work top and with work top, fixedly connected a rotating shaft, be fixed with the rotor of turntable bearing inner race and torque motor at the rotating shaft outer ring surface, be fixed with the centration axis concentric in the rotating shaft bottom with rotating shaft, centration axis lower end outer shroud is connected with the rotary encoder moving grid that is provided with, and the position corresponding with above-mentioned rotary part is provided with the stator of torque motor on the axle bed that lathe bed is provided with, rotary encoder fixed grid and turntable shaft bearing outer-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202184461U CN201267951Y (en) | 2008-10-11 | 2008-10-11 | Numerical control vertical type profile grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202184461U CN201267951Y (en) | 2008-10-11 | 2008-10-11 | Numerical control vertical type profile grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201267951Y true CN201267951Y (en) | 2009-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202184461U Expired - Fee Related CN201267951Y (en) | 2008-10-11 | 2008-10-11 | Numerical control vertical type profile grinder |
Country Status (1)
| Country | Link |
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| CN (1) | CN201267951Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152121A (en) * | 2011-02-23 | 2011-08-17 | 南通福通机床有限公司 | Direct-drive numerical control vertical type milling compound machine tool |
| CN102259286A (en) * | 2011-07-05 | 2011-11-30 | 宁波斯达弗液压传动有限公司 | Rectangular hole part and method for processing rectangular hole part by curve grinding machine |
| CN102854891A (en) * | 2012-09-18 | 2013-01-02 | 天津市亚安科技股份有限公司 | Stability control device and method based on direct drive of torque motor |
| CN103894920A (en) * | 2014-03-26 | 2014-07-02 | 广东工业大学 | Lower plate driving structure of plane grinder |
| CN105014535A (en) * | 2015-08-20 | 2015-11-04 | 上海嘉准机械设备有限公司 | C-axis rotating device applied to five-axis numerical control grinder |
| TWI599436B (en) * | 2016-05-06 | 2017-09-21 | Pu-Xuan Qiu | Indexing rotary device |
| CN110091221A (en) * | 2019-05-13 | 2019-08-06 | 成都工业学院 | A kind of die surface processing method |
| CN112192382A (en) * | 2020-11-02 | 2021-01-08 | 北京博鲁斯潘精密机床有限公司 | High-precision curve grinding machine and application thereof |
-
2008
- 2008-10-11 CN CNU2008202184461U patent/CN201267951Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152121A (en) * | 2011-02-23 | 2011-08-17 | 南通福通机床有限公司 | Direct-drive numerical control vertical type milling compound machine tool |
| CN102259286A (en) * | 2011-07-05 | 2011-11-30 | 宁波斯达弗液压传动有限公司 | Rectangular hole part and method for processing rectangular hole part by curve grinding machine |
| CN102854891A (en) * | 2012-09-18 | 2013-01-02 | 天津市亚安科技股份有限公司 | Stability control device and method based on direct drive of torque motor |
| CN102854891B (en) * | 2012-09-18 | 2015-02-11 | 天津市亚安科技股份有限公司 | Stability control device and method based on direct drive of torque motor |
| CN103894920A (en) * | 2014-03-26 | 2014-07-02 | 广东工业大学 | Lower plate driving structure of plane grinder |
| CN105014535A (en) * | 2015-08-20 | 2015-11-04 | 上海嘉准机械设备有限公司 | C-axis rotating device applied to five-axis numerical control grinder |
| TWI599436B (en) * | 2016-05-06 | 2017-09-21 | Pu-Xuan Qiu | Indexing rotary device |
| CN110091221A (en) * | 2019-05-13 | 2019-08-06 | 成都工业学院 | A kind of die surface processing method |
| CN112192382A (en) * | 2020-11-02 | 2021-01-08 | 北京博鲁斯潘精密机床有限公司 | High-precision curve grinding machine and application thereof |
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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 |
Granted publication date: 20090708 Termination date: 20151011 |
|
| EXPY | Termination of patent right or utility model |