CN107511714A - A kind of method for Digit Control Machine Tool temperature rise compensation - Google Patents
A kind of method for Digit Control Machine Tool temperature rise compensation Download PDFInfo
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- CN107511714A CN107511714A CN201610429560.8A CN201610429560A CN107511714A CN 107511714 A CN107511714 A CN 107511714A CN 201610429560 A CN201610429560 A CN 201610429560A CN 107511714 A CN107511714 A CN 107511714A
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- machine tool
- control machine
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- temperature
- temperature rise
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0003—Arrangements for preventing undesired thermal effects on tools or parts of the machine
- B23Q11/0007—Arrangements for preventing undesired thermal effects on tools or parts of the machine by compensating occurring thermal dilations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
- Numerical Control (AREA)
Abstract
The present invention relates to a kind of method for Digit Control Machine Tool temperature rise compensation, temperature and each axle offset amount at each thermal source for causing axial dipole field of detection Digit Control Machine Tool, and according to thermal expansion formula, obtain temperature coefficient；The install sensor at each thermal source for causing axial dipole field of Digit Control Machine Tool, after the temperature for each hot source point that sensor detects, transmitted by buffer module into FANUC systems, FANUC systems become position formula by heat, calculate each axial offset, and result of calculation is fed back to Servo feeding System of NC Machine Tools, servo feed system compensates for each axial offset.The present invention can be compensated by way of temperature rise compensation to each axial direction, and high-precision requirement is proposed so as to effectively reach.
Description
Technical field
The present invention relates to a kind of method for Digit Control Machine Tool temperature rise compensation.
Background technology
In Digit Control Machine Tool process, the change of ambient temperature and main axis temperature can all cause the thermal change position of lathe, so that machine coordinates shift, particularly in machine tool high speed process, machine coordinates skew is particularly evident.The existing temperature rise control of lathe carries out PID control by main shaft oil cooling machine to cooling oil temperature, indirect control main shaft temperature, but because main axis causes that temperature change difference is excessive and main shaft internal structure is excessively complicated, main shaft temperature is set to be unable to reach predetermined value, particularly main shaft high-speed rotation when, temperature deviation is particularly evident, while only lathe thermal change position caused by environment temperature can not be controlled by oil cooling machine PID control.
In view of it is above-mentioned the defects of, the design people, be actively subject to research and innovation, to found a kind of method for being used for Digit Control Machine Tool temperature rise compensation of new structure, make it with more the value in industry.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of method for Digit Control Machine Tool temperature rise compensation.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of method for Digit Control Machine Tool temperature rise compensation, comprise the following steps：
Step 1：Temperature and each axial offset at each thermal source for causing axial dipole field of detection Digit Control Machine Tool, and according to thermal expansion formula, obtain temperature coefficient；
Step 2：The install sensor at each thermal source for causing axial dipole field of Digit Control Machine Tool；
Step 3：After the temperature for each hot source point that sensor detects, transmitted by buffer module into FANUC systems；
Step 4：FANUC systems are calculated with linear regression method by thermal expansion formula, calculate each axial offset；
Step 5：After calculating each axial offset, the servo feed system in Digit Control Machine Tool is fed back to according to last result；
Step 6：Servo feed system compensates for each axial offset.
Further, the described method for being used for Digit Control Machine Tool temperature rise compensation, wherein, the sensor is AD592 sensors.
Further, the described method for being used for Digit Control Machine Tool temperature rise compensation, wherein, the temperature coefficient that gained is calculated in the step 1 refers in the case where not compensated to each axial direction, tests the data obtained and according to thermal expansion formula, the temperature coefficient calculated.
Further, the described method for being used for Digit Control Machine Tool temperature rise compensation, wherein, buffer module in the step 3 includes temperature signal converter, analogy device, RS485 RS 232 signal adapters, and sensor passes sequentially through temperature signal converter, analogy device, RS485 RS 232s signal adapter and signal is delivered in FANUC systems.
Further again, the described method for being used for Digit Control Machine Tool temperature rise compensation, wherein, the temperature signal converter is that current signal is converted into voltage signal.
Further again, the described method for being used for Digit Control Machine Tool temperature rise compensation, wherein, the analogy device is to convert analog signals into data signal.
By such scheme, the present invention at least has advantages below：
Thermal change position caused by Digit Control Machine Tool temperature change is compensated axially through servo feed system to each in Digit Control Machine Tool in the present invention, so no matter under what conditions Digit Control Machine Tool, its former precision can be kept, thermal change position is significantly influenceed no longer caused by by environment temperature and High-speed machining, really realizes that high-speed, high precision is processed.Temperature rise compensation function substantially increases the temperature rise precision of lathe, meets the demand of mould processing industry.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment will be briefly described below, it should be understood that, the following drawings illustrate only certain embodiments of the present invention, therefore it is not construed as the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, other related accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is present invention service chart when uncompensated；
Fig. 2 is present invention service chart when there is compensation.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be configured to arrange and design with a variety of.Therefore, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit the scope of claimed invention below, but is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, every other embodiment that those skilled in the art are obtained on the premise of creative work is not made belongs to the scope of protection of the invention.
With reference to embodiment, the embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Therefore, the scope of claimed invention is not intended to limit to the detailed description of embodiments of the invention below, but is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, every other embodiment that those skilled in the art are obtained on the premise of creative work is not made belongs to the scope of protection of the invention.
Embodiment
A kind of method for Digit Control Machine Tool temperature rise compensation, comprise the following steps：
Step 1：Temperature and each axial offset at each thermal source for causing axial dipole field of detection Digit Control Machine Tool, and according to thermal expansion formula, calculate temperature coefficient；
Step 2：The install sensor at each thermal source for causing axial dipole field of Digit Control Machine Tool；
Step 3：After the temperature for each hot source point that sensor detects, transmitted by buffer module into FANUC systems；
Step 4：FANUC systems are calculated with linear regression method by basic thermal expansion formula, calculate each axial offset；
Step 5：After calculating each axial offset, the servo feed system in Digit Control Machine Tool is fed back to according to last result；
Step 6：Servo feed system compensates for each axial offset.
Wherein, thermal expansion formula：DL=L*dT* α, dT=temperature changes, L=length, α=thermal coefficient of expansion, L* α=temperature coefficient, and offset is identical with the concept of the dL in thermal expansion formula, you can it is used as offset to work as.
Embodiment one
It is related to gantry plane SB216, three axle optical rulers, temperature signal converter, analogy device, RS485 RS 232s signal adapter, AD592 sensors and FANUC systems,
The temperature coefficient of gained is calculated for the step 1 in above-described embodiment,Calculate the temperature coefficient in the case where not compensated to each axial direction,Pass through experiment,Detect each thermal source for causing axial dipole field of Digit Control Machine Tool,And calculate temperature coefficient,Then AD592 sensors are installed at each heat source position,Then start working,AD592 sensors detect the temperature at each thermal source,And temperature current signal is transmitted into temperature signal converter,Temperature current signal is converted into voltage signal and is output in analogy device by temperature signal converter,Then analogy device is by passing through signal transacting,Voltage signal is converted into data signal by analog signal,And exported by RS485 agreements,Then it is output to by RS485 RS 232 converters in FANUC systems,FANUC systems pass through the program to set,And calculated according to thermal expansion formula,Pass through the servo feed system in data transfer to the Digit Control Machine Tool that is obtained after calculating,Then compensated by servo feed system for each axial offset.
In the present invention temperature coefficient is calculated in embodiment and embodiment one to be calculated using linear regression method.
Premise of the present invention before above-mentioned work is completed need to be established on the basis of main shaft oil cooling machine PID control, and the technology has been related in the introduction, and belongs to prior art, and any statement is not being done at this.
Embodiment two
On the basis of embodiment 1, simply using main shaft oil cooling machine PID control, no temperature rise compensation, run according to such as table 1 below program.
Table 1：
| Rotating speed (rpm) | Time (h) | |
| 1 | 1000 | 2 |
| 2 | 100 | 1 |
| 3 | 2000 | 2 |
| 4 | 100 | 1 |
| 5 | 3000 | 2 |
| 6 | 100 | 2 |
| 7 | 4000 | 2 |
| 8 | 100 | 2 |
| 9 | 5000 | 2 |
| 10 | 100 | 2 |
| 11 | 6000 | 1.5 |
| 12 | 100 | 2 |
| Amount to | 21.5 hours |
Can obtain Fig. 1 according to the intermediate range sort run of upper table 1, and from Fig. 1 it is known that X to maximum heat conjugate 55um, Z-direction thermal change position 70um, so as to draw the equipment compensated five in the case of its accuracy than relatively low.
When using main shaft oil cooling machine PID control, while being compensated using temperature rise, run according to such as table 3 below program.
Table 3：
| Rotating speed (rpm) | Time (h) | |
| 1 | 5400 | 2 |
| 2 | 100 | 2 |
| 3 | 3000 | 2 |
| 4 | 100 | 2 |
| 5 | 4000 | 2 |
| 6 | 100 | 2 |
| 7 | 1000 | 1 |
| 8 | 100 | 2 |
| 9 | 5000 | 2 |
| 10 | 100 | 2 |
| Amount to | 19 hours |
Can obtain Fig. 2 according to the intermediate range sort run of upper table 3, and from Fig. 2 it is known that X to maximum heat conjugate 30m, Z-direction thermal change position 20um, it can thus be appreciated that after the mode of temperature rise compensation is employed, the accuracy of the equipment is significantly improved.
Thermal change position caused by Digit Control Machine Tool temperature change is compensated axially through servo feed system to each in Digit Control Machine Tool in the present invention, so no matter under what conditions Digit Control Machine Tool, its former precision can be kept, thermal change position significantly influences no longer caused by by environment temperature and High-speed machining, really realizes that high-speed, high precision is processed.Temperature rise compensation function substantially increases the temperature rise precision of lathe, meets the demand of mould processing industry.
Described above is only the preferred embodiment of the present invention; it is not intended to limit the invention; it should be understood that; for those skilled in the art; without departing from the technical principles of the invention; some improvement and modification can also be made, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (6)
- A kind of 1. method for Digit Control Machine Tool temperature rise compensation, it is characterised in that comprise the following steps：Step 1：Temperature and each axial offset at each thermal source for causing axial dipole field of detection Digit Control Machine Tool, And according to thermal expansion formula, obtain temperature coefficient；Step 2：The install sensor at each thermal source for causing axial dipole field of Digit Control Machine Tool；Step 3：After the temperature for each hot source point that sensor detects, by buffer module transmit to In FANUC systems；Step 4：FANUC systems are calculated with linear regression method by thermal expansion formula, calculate each axle To offset；Step 5：After calculating each axial offset, fed back to according to last result in Digit Control Machine Tool Servo feed system；Step 6：Servo feed system compensates for each axial offset.
- 2. the method according to claim 1 for Digit Control Machine Tool temperature rise compensation, it is characterised in that：Institute It is AD592 sensors to state sensor.
- 3. the method according to claim 1 for Digit Control Machine Tool temperature rise compensation, it is characterised in that：Institute State the temperature coefficient obtained by calculating in step 1 to refer in the case where not compensating each axial direction, test institute total According to and according to thermal expansion formula, the temperature coefficient calculated.
- 4. the method according to claim 1 for Digit Control Machine Tool temperature rise compensation, it is characterised in that：Institute The buffer module stated in step 3 includes temperature signal converter, analogy device, RS485 RS 232 signals Converter, sensor pass sequentially through temperature signal converter, analogy device, the conversion of RS485 RS 232s signal Signal is delivered in FANUC systems by device.
- 5. the method according to claim 4 for Digit Control Machine Tool temperature rise compensation, it is characterised in that：Institute It is that current signal is converted into voltage signal to state temperature signal converter.
- 6. the method according to claim 4 for Digit Control Machine Tool temperature rise compensation, it is characterised in that：Institute It is to convert analog signals into data signal to state analogy device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230570A (en) * | 2018-11-29 | 2020-06-05 | 广州义同机械实业有限公司 | Method for compensating heat temperature rise of numerical control machine tool |
| CN113043061A (en) * | 2020-11-23 | 2021-06-29 | 宝鸡忠诚机床股份有限公司 | Method for obtaining thermal temperature rise error compensation quantity of numerical control machine tool workbench |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751001A (en) * | 2008-12-16 | 2010-06-23 | 财团法人工业技术研究院 | Thermal error compensation method for tool machine |
| CN101797704A (en) * | 2009-12-31 | 2010-08-11 | 重庆大学 | Method for thermal deformation error compensation of digital control gear hobbing machine |
| CN101804581A (en) * | 2010-03-23 | 2010-08-18 | 四川普什宁江机床有限公司 | Implementation method of automatic compensation for thermal deformation of machine tool |
| DE102009054631A1 (en) * | 2009-12-14 | 2011-06-16 | Deckel Maho Pfronten Gmbh | Method for determining thermally induced change in spatial position of machine tool section, involves comparing values of two spatial positions of machine tool sections, and determining thermally induced change in positions from comparison |
| CN201945855U (en) * | 2010-11-25 | 2011-08-24 | 电子科技大学 | Thermal error compensating device based on numerical controlling working table |
| CN102672527A (en) * | 2012-05-03 | 2012-09-19 | 四川大学 | Full working stroke thermal error compensation method of numerically-controlled machine tool feeding system and implementation system thereof |
-
2016
- 2016-06-17 CN CN201610429560.8A patent/CN107511714A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751001A (en) * | 2008-12-16 | 2010-06-23 | 财团法人工业技术研究院 | Thermal error compensation method for tool machine |
| DE102009054631A1 (en) * | 2009-12-14 | 2011-06-16 | Deckel Maho Pfronten Gmbh | Method for determining thermally induced change in spatial position of machine tool section, involves comparing values of two spatial positions of machine tool sections, and determining thermally induced change in positions from comparison |
| CN101797704A (en) * | 2009-12-31 | 2010-08-11 | 重庆大学 | Method for thermal deformation error compensation of digital control gear hobbing machine |
| CN101804581A (en) * | 2010-03-23 | 2010-08-18 | 四川普什宁江机床有限公司 | Implementation method of automatic compensation for thermal deformation of machine tool |
| CN201945855U (en) * | 2010-11-25 | 2011-08-24 | 电子科技大学 | Thermal error compensating device based on numerical controlling working table |
| CN102672527A (en) * | 2012-05-03 | 2012-09-19 | 四川大学 | Full working stroke thermal error compensation method of numerically-controlled machine tool feeding system and implementation system thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230570A (en) * | 2018-11-29 | 2020-06-05 | 广州义同机械实业有限公司 | Method for compensating heat temperature rise of numerical control machine tool |
| CN113043061A (en) * | 2020-11-23 | 2021-06-29 | 宝鸡忠诚机床股份有限公司 | Method for obtaining thermal temperature rise error compensation quantity of numerical control machine tool workbench |
| CN113043061B (en) * | 2020-11-23 | 2023-11-14 | 宝鸡忠诚机床股份有限公司 | Method for obtaining thermal temperature rise error compensation quantity of workbench of numerical control machine tool |
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