CN203650135U - Real-time online detection and closed loop feedback compensation device for thermal elongation strain errors of numerical control machine tool ram - Google Patents
Real-time online detection and closed loop feedback compensation device for thermal elongation strain errors of numerical control machine tool ram Download PDFInfo
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- CN203650135U CN203650135U CN201320546138.2U CN201320546138U CN203650135U CN 203650135 U CN203650135 U CN 203650135U CN 201320546138 U CN201320546138 U CN 201320546138U CN 203650135 U CN203650135 U CN 203650135U
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Abstract
The utility model provides a real-time online detection and closed loop feedback compensation device for thermal elongation strain errors of a numerical control machine tool ram. The device is characterized by comprising an online detection and real-time closed loop feedback compensation, and mainly comprises a detection rod whose front end is fixed on the ram, a grating scale reading head mounting base fixedly connected with the rear end of the detection rod, a grating scale reading head and a grating scale cut-to-length device fixedly mounted on a ram seat; and real-time online detection and compensation of the thermal elongation strain errors of the ram is achieved by virtue of the conventional closed loop feedback function of a numerical control system. After application of the device and a detection method, the processing errors caused by thermal deformation of the ram can be reduced greatly for a numerical control machine tool, preset control accuracy of the machine tool is guaranteed, and good economic benefit and social benefit are achieved.
Description
Technical field
The utility model relates to a kind of for the detection of numerical control machine tool ram thermal stretching distortion inaccuracy real-time online and closed loop feedback compensation arrangement, specifically, is to be used in the hot error detection and compensation mechanical device on Digit Control Machine Tool in field of machining.Belong to precision finishing machine technical field.
Background technology
Lathe in use, between each moving component, can produce a large amount of heats owing to rubbing, also can there is heat exchange in lathe and external environment simultaneously, will cause like this thermal expansion of each parts, under the effect of various constraints, finally cause the inaccuracy of each moving component position and attitude, thereby produce hot error.Hot error is occupied sizable proportion in the whole error of lathe, research shows: the mismachining tolerance that thermal deformation causes in Precision Machining accounts for 40 ~ 70% of total mismachining tolerance, become one of the topmost factor of machine finish that affects, become the focus of domestic and international research at present.Especially for heavy digital control machine tool, because of its quality and inertia large, drive system power demand is larger, parts heating is comparatively serious, produces comparatively significantly thermal deformation, and then forms larger hot error, seriously restricts the raising of Precision of NC Machine Tool.Ram assembly, as the critical component of heavy digital control machine tool, is restricting the raising of machine tool accuracy to a great extent.Because being subject to the impact of the High Rotation Speed heat-dissipating of each axle system and main shaft in feed system heating, main-gear box, ram will produce larger thermal deformation, particularly more obvious in the thermal stretching error of axial feed direction, have a strong impact on machining accuracy, stability and the range of application of lathe.As when the larger plane of milling, because twice milling is longer interval time, ram thermal stretching is during this period of time larger, at present under existence conditions its thermal stretching amount can not survey, also uncontrollable, will produce and comparatively significantly connect tool marks, make the plane of milling not meet the processing technology requirement of part, cause higher percent defective, become each main frame manufacturer and need one of key issue of solution badly.
At present, for ram due to the hot dilatation that caused by change of temperature field, also effectively do not prevent and solution, the main way that still adopts error to prevent, such as improving grinding machine structure design by optimization or increasing cooling device, ram temperature is reduced, also or by being improved in the mode of equalization temperature field with idle stroke preheating before processing.But because the effect of cooling jacket device is limited, can not thoroughly solve the thermal stretching problem of ram, and the thermal stretching error size of ram changes the change along with the condition such as duty and environment temperature, need long time and be preheating to hot stable state.Therefore, under the prerequisite day by day increasing in current high-precision numerical control machine demand, need to seek suitable method the position error of machine ram is carried out to real-time online detection, and by detected value Real-time Feedback to digital control system, carry out and the rightabout motion of thermal stretching error with the servo feeding apparatus of controlling ram, realize the compensation of ram position error, thereby the precision of lathe is improved.
For ram thermal stretching compensation of error, Gu Dan etc. disclose a kind of control method for thermal deformation compensation of numerical control machine tool ram and have implemented the device of the method in patent " device of a kind of control method for thermal deformation compensation of numerical control machine tool ram and enforcement the method " (application number 201010595650.7), the method is by low-expansion test rod and the micro-displacement sensor installed on ram, the thermal stretching error amount of ram is detected, and convert it into compensated pulse signal, the handheld unit interface providing by digital control system inputs to digital control system, thereby realize compensation.This control method and implement device thereof, not only need digital control system to there is fairly perfect and complicated signal and communication hardware interface and implement device thereof, and require enforcement compensator to there is professional numerical control knowledge and experience, but also need extra displacement transducer to detect thermal deformation errors signal, and plug-in pulse generation compensator, displacement transducer is because of its precision, the restriction of stability and antijamming capability, particularly under industrial environment, its output is beated larger, add the pulse conversion circuit in later stage and the effect of data communication, not only increase cost, and increase the complexity of system, it is not very good finally causing compensation effect, be subject in actual applications certain restriction.
Summary of the invention
The utility model object is to solve existing prior art problem in background technology, a kind of being specifically designed to of the utility model eliminated the real-time online detection and closed loop feedback compensation arrangement of ram thermal stretching distortion on machine finish impact, after this application of installation, can by Digit Control Machine Tool particularly heavy digital control machine tool because the thermal stretching of ram is out of shape the mismachining tolerance causing and is greatly reduced, guarantee to realize the predetermined control accuracy of lathe, it is steady that simultaneity factor has compensation process, is subject to the feature that external interference is less.
The utility model detects with the device technique scheme of closed loop feedback compensation for numerical control machine tool ram thermal stretching distortion inaccuracy real-time online: device is detected by real-time online and real-time closed-loop feedback compensation two large divisions forms, the front end that mainly comprises test rod (2) is fixed on ram (1), the raster ruler read head mount set (15) being connected mutually with test rod (2) rear end, grating ruler reading head (16) and be fixedly mounted on the grating scale scale (17) on ram seat, and by the existing closed loop feedback function of digital control system, the real-time online of realizing ram thermal stretching distortion inaccuracy detects and compensation.
Described device by be fixed on ram (1) test rod (2), hold-down screw (3), packing ring (4), (6), (8), (10), supporting screw (5), (7), (9), attachment screw (11), (12), (13), (14), raster ruler read head mount set (15), grating ruler reading head (16) and grating scale scale (17) and grating scale trip bolt (18) for closed loop feedback jointly form; Wherein, described trip bolt (3) is fixedly connected with ram (1) test rod (2) at front end; Described packing ring (4), (6), (8), (10) by test rod (2) with ram (1) thus separating to reduce contact area reduces friction; Described supporting screw (5), (7), (9) be for limiting test rod (2) along perpendicular to the moving of bar length direction, and ensures that test rod (2) can freely-movable along test rod (2) length direction simultaneously; Described attachment screw (11), (13) are for being fixed together test rod (2) and raster ruler read head mount set (15); Described attachment screw (12), (14) are for being fixed together raster ruler read head mount set (15) and grating ruler reading head (16).
Described test rod (2) adopts the minimum invar alloy material of thermal coefficient of expansion, the front end of test rod (2) front end and ram (1) is fixed together by trip bolt (3), test rod (2) rear end and raster ruler read head mount set (15) are fixed together by connecting bolt (11), (13), test rod (2) is except front end fixing point, can axially carry out free relative motion with respect to ram (1), and be limited in the motion of direction perpendicular to axial direction, ensure that test rod (2) and raster ruler read head mount set (15) are synchronized with the movement.
The mid portion of described test rod (2) has keyway, can strengthen its rigidity by supporting screw (5), (7), (9), can ensure again that test rod (2) only does the motion of bar length direction with respect to ram (1) simultaneously, and not do the motion perpendicular to bar length direction.
Described invar alloy is nickel steel alloy, is commonly called as invar, constant steel, and its thermal coefficient of expansion is about 1.2 × 10
-6/ DEG C, with respect to ram material---very little cast iron, can think zero.
Described grating ruler reading head (16) is fixed on the rear end of the test rod (2) being mutually connected at front end with ram, and grating scale scale (17) is fixed on ram seat (supporting the device of ram).
Detect the device detection method compensating with closed loop feedback for numerical control machine tool ram thermal stretching distortion inaccuracy real-time online, it is characterized in that, by slotting at (1) one jiao of place of ram, installation and measuring bar (2) in groove; The front end of test rod (2) is rigidly connected by hold-down screw (3) and ram (1), and the rear end of test rod (2) is formed and is rigidly connected with grating ruler reading head (16) by connecting bolt and raster ruler read head mount set (15); In moving perpendicular to bar length direction in restriction test rod (2) edge, ensure that test rod (2) can be along the freely-movable of bar length direction, frictional force when reducing relative motion has installed packing ring (4), (6), (8), (10) additional between test rod (2) and ram (1).
Described grating ruler reading head (16) is by raster ruler read head mount set (15) and attachment screw (11), (12), (13), (14) be fixed on test rod (2), in the time that ram (1) produces thermal deformation, by test rod (2), deflection is passed to grating ruler reading head (16), grating ruler reading head (16) perceives after the thermal stretching distortion of ram (1), feed back to digital control system, controlling servo feed motor moves accordingly, make the opposite direction motion of whole ram system to ram (1) thermal stretching distortion, the real-time online that completes ram (1) thermal stretching distortion inaccuracy detects and closed loop feedback compensation, allow the precision of ram (1) front end not be subject to the impact of ram thermal stretching distortion, ensure the machining accuracy of lathe.
Described compensation is the closed loop feedback function by digital control system, and " servo " function of system realizes compensation automatically, and does not need extra compensate control apparatus.
Owing to taking such scheme, the test rod one end of transmitting as thermal walking is fixed on ram front end side, and the other end freely stretches and its afterbody and grating ruler reading head are rigidly connected.When being heated, ram causes that front end axial elongation amount is Δ
xtime, ram drives test rod to move together, and the other end of test rod and grating ruler reading head also can move axially Δ in the ideal case
xlength, works as Δ
xwhile reaching the resolution ratio of grating scale, grating scale system senses is to this relative shift Δ
x, be the size of the hot stroke of ram, this displacement real-time closed-loop is fed back to digital control system, by digital control system control ram servo feed system, make grating ruler reading head be positioned at all the time system command position, thereby ensure the positioning precision of ram front end face.
The utility model beneficial effect is: the real-time online detection of dynamic that has realized numerical control machine tool ram thermal stretching distortion, and directly compensate by the position closed loop reponse system of digital control system, Digit Control Machine Tool can be out of shape to the mismachining tolerance causing and greatly reduce due to the thermal stretching of ram, there is good economic benefit and social benefit.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the operation principle block diagram for the detection of ram thermal stretching distortion inaccuracy real-time online and closed loop feedback compensation arrangement under the utility model.
Fig. 2 is the external structure schematic diagram of numerical control machine tool ram (1) parts related in the utility model.
Fig. 3 is the structural front view of the utility model for the detection of ram thermal stretching distortion inaccuracy real-time online and closed loop feedback compensation arrangement.
Fig. 4 is the G-G direction cutaway view in Fig. 3.
Fig. 5 is the F-F direction cutaway view in Fig. 3.
Fig. 6 is the partial enlarged view I in Fig. 3.
Fig. 7 is the partial enlarged view II in Fig. 3.
Fig. 8 is the partial enlarged view III in Fig. 3.
Fig. 9 is the partial enlarged view IV in Fig. 3.
Figure 10 is the partial enlarged view V in Fig. 5.
Figure 11 is the partial enlarged view VI in Fig. 4.
Figure 12 is the partial enlarged view VII in Fig. 4.
Figure 13 is the partial enlarged view VIII in Fig. 4.
Figure 14 is the partial enlarged view IX in Fig. 4.
Ram in figure in 1-Digit Control Machine Tool, 2-test rod, 3-hold-down screw, 4-packing ring, 5-supporting screw, 6-packing ring, 7-supporting screw, 8-packing ring, 9-supporting screw, 10-packing ring, 11-attachment screw, 12-attachment screw, 13-attachment screw, 14-attachment screw, 15-raster ruler read head mount set, 16-grating ruler reading head, 17-grating scale scale, 18-grating scale trip bolt.
Detailed description of the invention
The utility model is made up of real-time online detection and real-time closed-loop feedback compensation two large divisions with closed loop feedback compensation arrangement for the real-time online detection of eliminating the impact of numerical control machine tool ram thermal stretching distortion inaccuracy, mainly comprise that front end is fixed on the test rod on ram, raster ruler read head mount set, the grating ruler reading head being connected mutually with test rod rear end and be fixedly mounted on the grating scale scale on ram seat, and detect and compensation by the real-time online that the existing closed loop feedback function of digital control system realizes ram thermal stretching distortion inaccuracy.Its specific implementation process is:
First, after ram is heated, there is elongation strain, drive the test rod entirety that there is no a thermal deformation to extreme direction motion before ram;
Secondly, test rod drives grating ruler reading head to move to extreme direction before ram by intermediate junction device;
Again, grating ruler reading head is to ram nose motion, and in the time that amount of exercise is less than grating scale resolution ratio, read head moves forward; In the time that amount of exercise reaches grating scale resolution ratio, grating scale system is the thermal stretching amount of ram front end by this amount of exercise of perception, and feeds back to digital control system;
Finally, digital control system is received after the signal of ram front end thermal stretching distortion, by servo-driven module control servo feed motor movement, and make the opposite direction motion of ram entirety towards thermal stretching distortion by servo feed mechanism such as screw pairs, grating ruler reading head revert to the original location of instruction, thereby ensures that the positioning precision of ram front end is not subject to the impact of ram thermal stretching distortion.
For the real-time online of realizing above-mentioned ram thermal stretching distortion inaccuracy detects, specialized designs test rod and fixing and bracing or strutting arrangement thereof, the thermal stretching distortion of ram front end is delivered to the installation site of ram rear end grating ruler reading head, specifically comprise: the test rod that thermal coefficient of expansion is minimum, test rod front end is connected in to the hold-down screw on ram, increase test rod rigidity and ensure that test rod is along the freely-movable of bar length direction, along the supporting screw perpendicular to the constraint of bar length direction simultaneously, and reduce the packing ring of contact area between test rod and ram.
For realizing the function of above-mentioned grating ruler reading head perception ram front end thermal stretching distortion, grating ruler reading head is connected on above-mentioned test rod by mount pad and screw, thereby has realized synchronizeing of grating ruler reading head and the thermal walking of ram front end.
For realizing the position closed loop feedback compensation function of ram thermal stretching distortion, the scale of grating scale need to be arranged on ram seat (supporting the device of ram) instead of on ram, guarantee ram front end travels forward after being heated and then drives read head to travel forward like this, the closed loop feedback function of utilizing digital control system, realizes compensation by servo feed system.
The utility model passes through at one jiao of place's fluting of ram, installation and measuring bar in groove; The front end of test rod is rigidly connected by hold-down screw and ram, and rear end is formed and is rigidly connected by connecting bolt and raster ruler read head mount set and grating ruler reading head; For increasing rigidity, arrange some supporting screws in test rod centre and rear end, in moving perpendicular to bar length direction in restriction test rod edge, ensure that test rod can be along the freely-movable of bar length direction, frictional force when reducing relative motion has installed packing ring additional between test rod and ram.Be equivalent to grating ruler reading head to be arranged on ram foremost by test rod, if do not consider the thermal expansion of grating scale itself, can think that ram front end, in the not impact of expanded by heating of the position of direction of feed, has ensured the positioning precision of ram in different thermal fields.
As shown in Fig. 1, the utility model is for eliminating the mechanical device of numerical control machine tool ram thermal stretching deformation effect, and its operation principle mainly comprises two parts: real-time online detection system and real-time closed-loop feedback compensation system.
As shown in Fig. 2 ~ 14.This invention structure division mainly comprises the test rod 2 being fixed on ram 1; Trip bolt 3; Packing ring 4,6,8,10; Supporting screw 5,7,9; Attachment screw 11,12,13,14; Raster ruler read head mount set 15; Grating ruler reading head 16; Grating scale scale 17; Grating scale trip bolt 18, wherein, described trip bolt 3 is fixedly connected with ram 1 test rod 2 at front end; Thereby described packing ring 4,6,8,10 separates to reduce contact area by test rod 2 and ram 1 to reduce friction; Described supporting screw 5,7,9 is for limiting test rod 2 along perpendicular to the moving of bar length direction, and ensures that test rod 2 can freely-movable along bar length direction simultaneously; Described attachment screw 11,13 is for being fixed together test rod 2 and raster ruler read head mount set 15; Described attachment screw 12,14 is for being fixed together raster ruler read head mount set 15 and grating ruler reading head 16.
When ram (1) is heated forward end elongation, drive test rod 2 to travel forward together by trip bolt 3, move forward by the final grating ruler reading head 16 that drives of raster ruler read head mount set 15 being connected on test rod 2, because the thermal coefficient of expansion of test rod 2 is minimum, can think that zero do not have thermal deformation, therefore the front end of test rod 2 and the displacement of rear end are consistent, that is grating ruler reading head 16 is consistent with the heat displacement amount of ram 1 front end, like this in the time that the thermal stretching deflection of ram 1 is less than the resolution ratio of grating scale, ram 1 continues to occur thermal stretching distortion, continue to drive grating ruler reading head reach, until reach the resolution ratio of grating scale, when the thermal stretching deflection of ram 1 reaches the resolution ratio of grating scale, digital control system will detect this change in displacement, and feed back to servo drive control module, and send corresponding pulse signal and control servo feed motor reversal, make the whole ram system displacement of mobile formed objects backward, grating ruler reading head revert to the original location of instruction, plays the effect of compensation, ensure that ram front end Cutting tool installation manner place is not subject to the impact of ram thermal stretching distortion, thereby improve the thermal state precision that it adds man-hour.Be equivalent to grating ruler reading head to be arranged on ram foremost by above-mentioned detection and compensation arrangement test rod, if do not consider the thermal expansion of grating scale itself, can think that ram front end, in the not impact of expanded by heating of the position of direction of feed, has ensured the positioning precision of ram in different thermal fields.After this kind of application of installation, can, by Digit Control Machine Tool because the mismachining tolerance that the thermal deformation of ram causes reduces greatly, guarantee to realize the predetermined control accuracy of lathe, there is good economic benefit and social benefit.
The material of described test rod 2 adopts the minimum invar alloy of thermal coefficient of expansion, and it is a kind of nickel steel alloy, is commonly called as invar or constant steel, and its thermal coefficient of expansion is about 1.2 × 10
-6/ DEG C, with respect to ram material---very little the thermal coefficient of expansion of cast iron, can think zero.The front end of test rod 2 front ends and ram 1 is fixed together by trip bolt 3, rear end and raster ruler read head mount set 15 are fixed together by connecting bolt 11,13, can axially carry out free relative motion with respect to ram 1, motion in direction perpendicular to axial direction has been limited, thereby has ensured being synchronized with the movement of test rod 2 and raster ruler read head mount set 15.
The mid portion of described test rod 2 has keyway, can strengthen its rigidity by supporting screw 5,7,9, can ensure again that test rod 2 only does the motion of test rod 2 length directions with respect to ram 1 simultaneously, and not do the motion perpendicular to bar length direction.
Described grating ruler reading head 16 is by raster ruler read head mount set 15 and attachment screw 11, 12, 13, 14 are fixed on test rod 2, in the time that ram 1 produces thermal deformation, by test rod 2, deflection is passed to grating ruler reading head 16, after the thermal stretching distortion of grating scale scale system senses ram 1, feed back to digital control system, controlling servo feed motor moves accordingly, make the opposite direction motion of whole ram system to ram 1 thermal stretching distortion, thereby the real-time online of realizing ram 1 thermal stretching distortion inaccuracy detects and closed loop feedback compensation, ensure that the precision of ram 1 front end is not subject to the impact of ram thermal stretching distortion, the final machining accuracy that ensures lathe.
The utility model is for eliminating the mechanical device of numerical control machine tool ram thermal stretching deformation effect, through evidence, the ram that can effectively reduce Digit Control Machine Tool varies with temperature the mismachining tolerance that causes dilatation to produce, reach predetermined Machine-Tool Control precision, compensation process steadily, reliably simultaneously, there is stronger practicality, can realize good economic benefit and social benefit.
Claims (9)
1. a numerical control machine tool ram thermal stretching distortion inaccuracy real-time online detects and closed loop feedback compensation arrangement, it is characterized in that: device is detected by real-time online and real-time closed-loop feedback compensation two large divisions forms, it is upper that the front end that mainly comprises test rod (2) is fixed on ram (1), raster ruler read head mount set (15), the grating ruler reading head (16) being connected mutually with test rod (2) rear end and be fixedly mounted on the grating scale scale (17) on ram seat.
2. device according to claim 1, it is characterized in that, device by be fixed on ram (1) test rod (2), hold-down screw (3), packing ring (4,6,8,10), supporting screw (5,7,9), attachment screw (11,12,13,14), raster ruler read head mount set (15), grating ruler reading head (16) and grating scale scale (17) and grating scale trip bolt (18) for closed loop feedback jointly form; Wherein, described trip bolt (3) is fixedly connected with ram (1) test rod (2) at front end; Described packing ring (4,6,8,10) by test rod (2) and ram (1) thus separating to reduce contact area reduces friction; Described supporting screw (5,7,9) is for limiting test rod (2) along perpendicular to the moving of bar length direction, and ensures that test rod (2) can freely-movable along test rod (2) length direction simultaneously; Described attachment screw (11,13) is for being fixed together test rod (2) and raster ruler read head mount set (15); Described attachment screw (12,14) is for being fixed together raster ruler read head mount set (15) and grating ruler reading head (16).
3. device according to claim 1, it is characterized in that, test rod (2) adopts the minimum invar alloy material of thermal coefficient of expansion, the front end of test rod (2) front end and ram (1) is fixed together by trip bolt (3), test rod (2) rear end and raster ruler read head mount set (15) are by connecting bolt (11, 13) be fixed together, test rod (2) is except front end fixing point, can axially carry out free relative motion with respect to ram (1), and be limited in the motion of direction perpendicular to axial direction, ensure that test rod (2) and raster ruler read head mount set (15) are synchronized with the movement.
4. device according to claim 1, it is characterized in that, the mid portion of test rod (2) has keyway, can strengthen its rigidity by supporting screw (5,7,9), can ensure again that test rod (2) only does the motion of bar length direction with respect to ram (1) simultaneously, and not do the motion perpendicular to bar length direction.
5. device according to claim 1, is characterized in that described invar alloy is nickel steel alloy, and its thermal coefficient of expansion is about 1.2 × 10
-6/ DEG C.
6. device according to claim 1, is characterized in that, described grating ruler reading head (16) is fixed on the rear end of the test rod (2) being mutually connected at front end with ram, and grating scale scale (17) is fixed on the ram seat that supports ram apparatus.
7. device according to claim 1, is characterized in that, by slotting at (1) one jiao of place of ram, and installation and measuring bar (2) in groove; The front end of test rod (2) is rigidly connected by hold-down screw (3) and ram (1), and the rear end of test rod (2) is formed and is rigidly connected with grating ruler reading head (16) by connecting bolt and raster ruler read head mount set (15); In moving perpendicular to bar length direction in restriction test rod (2) edge, ensure that test rod (2) can be along the freely-movable of bar length direction, frictional force when reducing relative motion has installed packing ring (4,6,8,10) additional between test rod (2) and ram (1).
8. device according to claim 7, it is characterized in that, grating ruler reading head (16) is by raster ruler read head mount set (15) and attachment screw (11, 12, 13, 14) be fixed on test rod (2), in the time that ram (1) produces thermal deformation, by test rod (2), deflection is passed to grating ruler reading head (16), grating ruler reading head (16) perceives after the thermal stretching distortion of ram (1), feed back to digital control system, controlling servo feed motor moves accordingly, make the opposite direction motion of whole ram system to ram (1) thermal stretching distortion, the real-time online that completes ram (1) thermal stretching distortion inaccuracy detects and closed loop feedback compensation, allow the precision of ram (1) front end not be subject to the impact of ram thermal stretching distortion, ensure the machining accuracy of lathe.
9. device according to claim 1, is characterized in that, described compensation is automatically to realize compensation by the closed loop feedback function of digital control system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546138.2U CN203650135U (en) | 2013-09-04 | 2013-09-04 | Real-time online detection and closed loop feedback compensation device for thermal elongation strain errors of numerical control machine tool ram |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546138.2U CN203650135U (en) | 2013-09-04 | 2013-09-04 | Real-time online detection and closed loop feedback compensation device for thermal elongation strain errors of numerical control machine tool ram |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495905A (en) * | 2013-09-04 | 2014-01-08 | 沈机集团昆明机床股份有限公司 | Real-time online detection and closed loop feedback compensation device of ram thermal expansion deformation errors of numerically-controlled machine tool and detection method thereof |
| CN107009189A (en) * | 2017-04-26 | 2017-08-04 | 广西大学 | A kind of thermal stretching compensation mechanism applied to milling-boring machine ram |
| CN113701658A (en) * | 2021-09-01 | 2021-11-26 | 中国科学院长春光学精密机械与物理研究所 | Thermal deformation detection device and method for absolute grating ruler in non-uniform temperature field |
| CN116460321A (en) * | 2023-04-12 | 2023-07-21 | 阿帕斯数控机床制造(上海)有限公司 | Compensation method and device for elongation of spindle of numerical control machine tool and numerical control machine tool |
-
2013
- 2013-09-04 CN CN201320546138.2U patent/CN203650135U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495905A (en) * | 2013-09-04 | 2014-01-08 | 沈机集团昆明机床股份有限公司 | Real-time online detection and closed loop feedback compensation device of ram thermal expansion deformation errors of numerically-controlled machine tool and detection method thereof |
| CN103495905B (en) * | 2013-09-04 | 2016-06-29 | 沈机集团昆明机床股份有限公司 | The detection of numerical control machine tool ram thermal stretching distortion inaccuracy real-time online and closed loop feedback compensation device and detection method |
| CN107009189A (en) * | 2017-04-26 | 2017-08-04 | 广西大学 | A kind of thermal stretching compensation mechanism applied to milling-boring machine ram |
| CN113701658A (en) * | 2021-09-01 | 2021-11-26 | 中国科学院长春光学精密机械与物理研究所 | Thermal deformation detection device and method for absolute grating ruler in non-uniform temperature field |
| CN113701658B (en) * | 2021-09-01 | 2022-08-09 | 中国科学院长春光学精密机械与物理研究所 | Thermal deformation detection device and method for absolute grating ruler in non-uniform temperature field |
| CN116460321A (en) * | 2023-04-12 | 2023-07-21 | 阿帕斯数控机床制造(上海)有限公司 | Compensation method and device for elongation of spindle of numerical control machine tool and numerical control machine tool |
| CN116460321B (en) * | 2023-04-12 | 2024-02-09 | 阿帕斯数控机床制造(上海)有限公司 | Compensation method and device for elongation of spindle of numerical control machine tool and numerical control machine tool |
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