CN204487274U - A kind of self compensating system being applied to machining center - Google Patents
A kind of self compensating system being applied to machining center Download PDFInfo
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- CN204487274U CN204487274U CN201520188864.0U CN201520188864U CN204487274U CN 204487274 U CN204487274 U CN 204487274U CN 201520188864 U CN201520188864 U CN 201520188864U CN 204487274 U CN204487274 U CN 204487274U
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Abstract
A kind of self compensating system being applied to machining center, comprise machining center, six joint Manipulators, with the matching used controller of six joint Manipulators, computer and laser interferometer, described laser interferometer comprises laser instrument, interference mirror and speculum, the end hand that described laser instrument is fixed on six joint Manipulators is grabbed, described interference mirror is arranged on the main shaft of the machine body of machining center, described speculum is arranged on the workbench of machine body, described interference mirror is between lasers and mirrors, the end of described six joint Manipulators is also provided with light source and camera.This self compensating system can compensate Workpiece fixing precision and each axle positioning precision easily and efficiently.
Description
Technical field
The utility model relates to processing technique field, is specifically related to a kind of self compensating system being applied to machining center.
Background technology
Along with society is to the enhancing of engineering goods diversified demand, and the rise of the fast development of flexible manufacturing system and Computer Integrated System is with constantly ripe, machining center is widely used aborning, and towards the future development of more speed, more high accuracy, more high automation degree, higher reliability.
Because most employing manually carries out loading and unloading at present, workpiece positioning precision is on the table made to be difficult to control, in addition the positioning precision of each axle of machining center is also another importance affecting machining accuracy, the positioning precision of each axle of machining center refers to each reference axis of the machining center positional precision that motion can reach under numerical control device controls, due to the impact of digital control system and mechanical transmission errors etc., make each axle in motion process, there is the situation that there is deviation between the data of numerical control device display and the data of reality, so just, directly can affect the precision that processing parts can reach, therefore compensating the positioning precision of each axle of machining center is a very important content, the positioning precision of view-based access control model compensation technique to each axle of machining center is had to compensate at present, as Fanuc 30i and Fanuc 30i-45 adopts 3D Error Compensation Technology, but the method needs to carry out accurate space measurement to equipment and each axle, whole process takes time and effort, suitable trouble, have in addition and utilize the positioning precision of laser interferometer to each axle to compensate, laser interferometer comprises laser instrument, interference mirror and speculum, in measuring process, on general main shaft interference mirror being arranged on the machine body of machining center, speculum is arranged on the workbench of machine body, laser instrument is arranged on tripod by installing The Cloud Terrace, manual adjustment is needed various knobs on The Cloud Terrace and tripod to be installed to make the beam collimation of laser instrument before testing, comprise and highly regulating, horizontal translation regulates, angular deflection regulates, angle pitch regulation etc., not only process is loaded down with trivial details, and there is human error.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of and be applied to machining center, can easily and efficiently to the self compensating system that Workpiece fixing precision and each axle positioning precision compensate.
Technical solution of the present utility model is: a kind of self compensating system being applied to machining center, comprise machining center, described machining center comprises machine body and numerical control device, described machine body comprises main shaft and workbench, it is characterized in that: also comprise six joint Manipulators, with the matching used controller of six joint Manipulators, computer and laser interferometer, described laser interferometer comprises laser instrument, interference mirror and speculum, the end hand that described laser instrument is fixed on six joint Manipulators is grabbed, described interference mirror is arranged on the main shaft of the machine body of machining center, described speculum is arranged on the workbench of machine body, described interference mirror is between lasers and mirrors, described laser instrument, interference mirror and speculum are positioned on same straight line and sustained height, the end of described six joint Manipulators is provided with light source and camera, described controller, laser instrument is all connected with computer with camera, described computer is connected with the numerical control device of machining center by a communication interface.
After adopting said structure, the utility model has the following advantages:
The end hand that laser instrument is placed on six joint Manipulators by the utility model is grabbed, light source and camera are arranged on six joint Manipulator ends, the image information of camera shooting light beam is transferred to computer and processes, the image information processed is transferred to controller by computer, the height of six joint Manipulators is regulated by controller, horizontal translation, angular deflection, angle pitching etc., thus carried out the alignment procedure of laser beam, without the need to manual adjustment, degree of regulation is higher, in addition the light source of six joint Manipulator ends and camera also can provide workpiece image information on the table, this image information is also transferred to after computer processes, numerical control device is transferred to again by computer, by numerical control device, workpiece positioning precision is on the table compensated, the real data obtained by laser interferometer in the process compensated each axle positioning precision in addition and the image information obtained by camera all can enter the unified process of computer, and exchanges data can be carried out with the numerical control device of machining center, without the need to hand input-data to numerical control device, automaticity is higher.
As preferably, described laser interferometer is two-frequency laser interferometer.It is little that two-frequency laser interferometer compares single frequency laser interferometer by the impact of surrounding environment, and certainty of measurement is higher.
As preferably, also comprise air borne sensor, material temperature sensor and ambient compensation unit, described air borne sensor is arranged on the column upper end of machine body, described material temperature sensor is arranged on the workbench of machine body, described air borne sensor and material temperature sensor are connected with ambient compensation unit respectively, and described ambient compensation unit is connected with computer.Wavelength due to laser interferometer is the foundation of the measuring precision, but wavelength is very easily by the impact of surrounding environment, the impact that air borne sensor and material temperature sensor can be used for detecting the environmental factor such as air pressure, temperature is set, the measure error caused by air pressure, temperature etc. by ambient compensation unit auto-compensation, can improve the certainty of measurement of laser interferometer.
Accompanying drawing illustrates:
Fig. 1 is the System's composition figure of machining center;
Fig. 2 is the structural representation of processing center machine tool body;
Fig. 3 is the structural representation of the utility model self compensating system;
In the utility model figure: 1, machining center, 2-numerical control device, 3-servo-drive system, 4-machine body, 5-measures feedback device, 6-main shaft, 7-workbench, 8-control medium, 9-computer, 10-six joint Manipulator, 11-air borne sensor, 12-light source, 13-camera, 14-laser instrument, 15-interference mirror, 16-speculum, 17-controller, 18-column, 19-material temperature sensor, 20-ambient compensation unit, 21-lathe bed.
Detailed description of the invention
Below in conjunction with accompanying drawing, and the utility model is described further in conjunction with the embodiments.
Embodiment:
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of self compensating system being applied to machining center, comprise machining center 1, machining center is primarily of control medium 8, numerical control device 2, servo-drive system 3, measurement feedback device 5 and machine body 4 form, control medium 8 is for storing the procedure of part, numerical control device 2 generally adopts computer numerical control device, i.e. CNC device, for reading in nc program, and various control instruction is exported after data processing and computing, control lathe each several part to work in order, servo-drive system 3 is the electric transmission contact links between numerical control device 2 and machine body 4, for receiving the instruction of numerical control device 2, drive the motion of each axle of machine body 4, measure feedback device 5 detect the speed of servo-drive system 3 and displacement and carry out closed-loop control, machine body 4 comprises main drive gear, feeding drive mechanism, workbench 7, lathe bed 21 and column 18 etc., main shaft 6 is critical pieces of main drive gear, this system also comprises six joint Manipulators 10, with the matching used controller 17 of six joint Manipulators 10, computer 9 and laser interferometer, described laser interferometer comprises laser instrument 14, interference mirror 15 and speculum 16, the end hand that described laser instrument 14 is fixed on six joint Manipulators 10 is grabbed, described interference mirror 15 is arranged on the main shaft 6 of the machine body 4 of machining center 1, described speculum 16 is arranged on the workbench 7 of machine body 4, described interference mirror 15 is between laser instrument 14 and speculum 16, described laser instrument 14, interference mirror 15 and speculum 16 are positioned on same straight line and sustained height, the end of described six joint Manipulators is also provided with light source 12 and camera 13, described controller 17, laser instrument 14 is all connected with computer 9 with camera 13, described computer 9 is connected with the numerical control device 2 of machining center 1 by a communication interface.
As preferably, described laser interferometer is two-frequency laser interferometer.It is little that two-frequency laser interferometer compares single frequency laser interferometer by the impact of surrounding environment, and certainty of measurement is higher.
As preferably, also comprise air borne sensor 11, material temperature sensor 19 and ambient compensation unit 20, described air borne sensor 11 is arranged on column 18 upper end of machine body 4, described material temperature sensor 19 is arranged on the workbench 7 of machine body 4, described air borne sensor 11 is connected with ambient compensation unit 20 respectively with material temperature sensor 19, and described ambient compensation unit 20 is connected with computer 9.Wavelength due to laser interferometer is the foundation of the measuring precision, but wavelength is very easily by the impact of surrounding environment, the impact that air borne sensor 11 and material temperature sensor 19 can be used for detecting the environmental factor such as air pressure, temperature is set, the measure error caused by air pressure, temperature etc. by ambient compensation unit 20 auto-compensation, can improve the certainty of measurement of laser interferometer, air borne sensor 11, material temperature sensor 19 and ambient compensation unit 20 are known technology.
As follows to the self-compensating process of each axle positioning precision: the end hand that laser instrument 14 is placed on six joint Manipulators 10 is grabbed, interference mirror 15 is arranged on the main shaft 6 of the machine body 4 of machining center, speculum 16 is arranged on the workbench 7 of machine body, interference mirror position 15 is between laser instrument 14 and speculum 16, the image information that the camera 13 of six joint Manipulator 10 ends takes light beam is transferred to computer 9 and processes, the image information processed is transferred to controller 17 by computer 9, the height of six joint Manipulators 10 is regulated by controller 17, horizontal translation, angular deflection, angle pitching etc., thus carried out the alignment procedure of laser instrument 14 light beam, make laser instrument 14, interference mirror 15 and speculum 16 are positioned on same measurement axle, along measuring direction of principal axis travelling table 7, the speculum 16 be positioned on workbench 7 is moved, so just, on laser instrument 14, form interference fringe, computer 9 is connected with laser instrument 14 the actual displacement data that just can be used for obtaining and measure on axle, air pressure is detected in addition by air borne sensor 11 and material temperature sensor 19, the impact of the environmental factors such as temperature, by ambient compensation unit 20 auto-compensation by air pressure, the measure error that temperature etc. cause, the data of the actual displacement data that computer detects according to laser instrument and ambient compensation unit 20 auto-compensation obtain revised actual displacement data, be transferred to the numerical control device 2 of machining center 1, after numerical control device 2 contrasts revised actual displacement data and the display data of self, automatically the positioning precision of each axle is compensated, this process carries out beam collimation by six joint Manipulators 10, exempt the loaded down with trivial details and human error of artificial collimation, and the actual displacement data on each measurement axle obtained by laser interferometer and the image information obtained by camera 13 all can enter the unified process of computer 9, and exchanges data can be carried out with the numerical control device 2 of machining center 1, without the need to hand input-data to numerical control device 2, automaticity is higher.
As follows to the self-compensating process of workpiece positioning precision on the table: to take workpiece position on the table 7 and the image information of attitude by the light source 12 of six joint Manipulator 10 ends and camera 13, this image information is transferred to after computer 9 carries out image procossing, be transferred to numerical control device 2 again, calculate by numerical control device 2 angle that each axle should rotate, thus accurately control the processing of cutter to part.
Claims (3)
1. one kind is applied to the self compensating system of machining center, comprise machining center (1), described machining center (1) comprises machine body (4) and numerical control device (2), described machine body (4) comprises main shaft (6) and workbench (7), it is characterized in that: also comprise six joint Manipulators (10), with six joint Manipulators (10) matching used controller (17), computer (9) and laser interferometer, described laser interferometer comprises laser instrument (14), interference mirror (15) and speculum (16), the end hand that described laser instrument (14) is fixed on six joint Manipulators (10) is grabbed, described interference mirror (15) is arranged on the main shaft (6) of the machine body (4) of machining center (1), described speculum (16) is arranged on the workbench (7) of machine body (4), described interference mirror (15) is positioned between laser instrument (14) and speculum (16), described laser instrument (14), interference mirror (15) and speculum (16) are positioned on same straight line and sustained height, the end of described six joint Manipulators is also provided with light source (12) and camera (13), described controller (17), laser instrument (14) is all connected with computer (9) with camera (13), described computer (9) is connected with the numerical control device (2) of machining center (1) by a communication interface.
2. a kind of self compensating system being applied to machining center according to claim 1, is characterized in that: described laser interferometer is two-frequency laser interferometer.
3. a kind of self compensating system being applied to machining center according to claim 1, it is characterized in that: also comprise air borne sensor (11), material temperature sensor (19) and ambient compensation unit (20), described air borne sensor (11) is arranged on column (18) upper end of machine body (4), described material temperature sensor (19) is arranged on the workbench (7) of machine body (4), described air borne sensor (11) is connected with ambient compensation unit (20) respectively with material temperature sensor (19), described ambient compensation unit (20) is connected with computer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188864.0U CN204487274U (en) | 2015-03-31 | 2015-03-31 | A kind of self compensating system being applied to machining center |
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| CN201520188864.0U CN204487274U (en) | 2015-03-31 | 2015-03-31 | A kind of self compensating system being applied to machining center |
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| CN201520188864.0U Expired - Fee Related CN204487274U (en) | 2015-03-31 | 2015-03-31 | A kind of self compensating system being applied to machining center |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791100A (en) * | 2017-09-28 | 2018-03-13 | 宝鸡市永盛泰钛业有限公司 | A kind of location error compensation system for Digit Control Machine Tool |
| CN109571138A (en) * | 2017-09-29 | 2019-04-05 | 发那科株式会社 | The control method of system of processing and processing machine |
| CN111113268A (en) * | 2019-12-21 | 2020-05-08 | 福建省嘉泰智能装备有限公司 | Cutter correction method and system for machine tool |
| CN116652696A (en) * | 2023-07-28 | 2023-08-29 | 成都飞机工业（集团）有限责任公司 | Device and method for rapidly detecting positioning precision of flexible wire machining center |
-
2015
- 2015-03-31 CN CN201520188864.0U patent/CN204487274U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791100A (en) * | 2017-09-28 | 2018-03-13 | 宝鸡市永盛泰钛业有限公司 | A kind of location error compensation system for Digit Control Machine Tool |
| CN109571138A (en) * | 2017-09-29 | 2019-04-05 | 发那科株式会社 | The control method of system of processing and processing machine |
| CN109571138B (en) * | 2017-09-29 | 2020-09-08 | 发那科株式会社 | Processing system and control method of processing machine |
| CN111113268A (en) * | 2019-12-21 | 2020-05-08 | 福建省嘉泰智能装备有限公司 | Cutter correction method and system for machine tool |
| CN111113268B (en) * | 2019-12-21 | 2021-09-07 | 福建省嘉泰智能装备有限公司 | Cutter correction method and system for machine tool |
| CN116652696A (en) * | 2023-07-28 | 2023-08-29 | 成都飞机工业（集团）有限责任公司 | Device and method for rapidly detecting positioning precision of flexible wire machining center |
| CN116652696B (en) * | 2023-07-28 | 2023-11-10 | 成都飞机工业（集团）有限责任公司 | Device and method for rapidly detecting positioning precision of flexible wire machining center |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150722 Termination date: 20180331 |