CN105446386A - Temperature control device applicable to differentiated control of temperature field of machine tool - Google Patents
Temperature control device applicable to differentiated control of temperature field of machine tool Download PDFInfo
- Publication number
- CN105446386A CN105446386A CN201510993889.2A CN201510993889A CN105446386A CN 105446386 A CN105446386 A CN 105446386A CN 201510993889 A CN201510993889 A CN 201510993889A CN 105446386 A CN105446386 A CN 105446386A
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- CN
- China
- Prior art keywords
- temperature
- control device
- temperature control
- cooling
- machine tool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
Abstract
The invention discloses a temperature control device applicable to differentiated control of the temperature field of a machine tool. The temperature control device includes three systems which are divided into a cooling circulating part, a free installation part and a heat preservation part, wherein the cooling circulating part is a hydraulic system; the main body of the free installation part is composed of four strong magnets through which the copper plate surface of the temperature control device can be firmly absorbed onto the machine tool; the cooling circulating part can output cooling liquid of different temperature; and each temperature control device is corresponding to an independent temperature adjustment box which can respectively control the temperature of the cooling liquid input of each temperature control device. According to the temperature control device of the invention, the temperature and flow rate of each cooling fluid inlet of the temperature control device are set, so that the cooling efficiency of each temperature control device can be independently adjusted; an input solenoid valve group can be controlled according to the feedback of the actually-measured temperature value of the input opening of each temperature control device, so that the temperature of the cooling liquid can be precisely adjusted, and therefore, the differentiated control of the temperature field of the machine tool can be realized. With the temperature control device adopted, defects of previous research results can be remedied. The temperature control device has the advantages of high reliability and convenient application.
Description
Technical field
The present invention relates to numerically-controlled machine processing technique field, particularly a kind of attemperating unit being applicable to machine tool temperature field differential and controlling.
Background technology
The workpiece accuracy of machine tooling is generally the 1.5-2 times of left and right (considering that technological capacity coefficient is generally about 1.33) of machine tool accuracy value, such as plain edition machine tool position precision is 0.025mm, process workpiece dimension precision between the holes at about 0.04-0.05mm, this is the distortion, the impact of processing temperature field, uneven, the tool precision impact of workpiece material etc. of considering process system, and wherein lathe temperature variation is one of key factor affecting machining precision.Any lathe carries out processing will consumption of power, and produce heat, heat conduction, to each moving component of lathe and machine element, must cause the thermal deformation of lathe worker process system, causes the change of Workpiece Machining Accuracy.Such as, a conventional numerical control vertical milling machine, when lathe proceeds to hot by cold conditions, main shaft is after long-time high-speed motion, temperature likely rises tens degree, machine element temperature rise together, swings back the comprehensive deformations such as thermal deformation, spindle centerline extension, main shaft end face new line in column local, the end mill of centering small dimension, main shaft end face may reach the length variations of 0.02-0.02mm.On numerically-controlled machine, main heating source derives from each servomotor and spindle motor, high-speed moving part and hydraulic system etc.The circulation fluid type of cooling, as a kind of effective ways controlling thermal deformation of machine tool, has been widely used in the manufacturing and designing of all kinds of precision and ultra-precision machine tool.At present, the circulation fluid type of cooling generally adopts ebullator to make the liquid coolant through apparatus for supercooling cooling enter the heating mechanism of machine tool body, and take away heat, be back in cooling device, complete cool cycles, thus reduce the temperature of lathe heat generating components, realize circulation fluid temperature and control, but its circulation fluid temperature is single, cooling path is fixed, the multi-point differentiation that cannot realize machine tool temperature field controls.
Summary of the invention
The present invention provides a kind of attemperating unit that can be applicable to the temperature control of lathe temperature for solving in known technology the technical matters that exists.
The present invention for the technical scheme solving in known technology the technical matters that exists and take is: be a kind ofly applicable to the temperature controlled attemperating unit of lathe, comprises the aluminium sheet of a band cooling oil path, a copper coin, four magnet pieces, liquid coolant entrance, cooling liquid outlet, a two cooling lines and one deck heat insulation foams composition.
The advantage that the present invention has and good effect are: by arranging liquid coolant temperature in and the flow of attemperating unit, carry out the cooling effectiveness of each attemperating unit of independent regulation, and according to the feedback of each attemperating unit input port observed temperature value, control inputs solenoid valve group, the temperature of fine adjustment liquid coolant, controls with the differentiation realizing machine tool temperature field.Compensate for the defect of correlative study achievement in the past, reliability is high, and application is convenient.
Accompanying drawing explanation
Fig. 1 is the two-dimensional representation of Facad structure of the present invention;
Fig. 2 be the present invention in real work with the schematic three dimensional views of lathe surface of contact;
Fig. 3 is internal cooling pipeline schematic diagram of the present invention;
Pictorial diagram when Fig. 4 is actual tests of the present invention;
Number in the figure title:
1. liquid coolant entrance, 2. cooling liquid outlet, 3. copper coin face, 4. aluminium sheet cooling oil path, 5. cooling liquid outlet valve, 6. outlet temperature sensor, 7. inlet temperature sensor, 8. heat insulation foam, 9. fluid pipeline, 10. liquid coolant inlet valve, 11. liquid-in pipe roads
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 to Fig. 4, be applicable to the free installing type attemperating unit that machine tool temperature field differential controls, comprise the heat-conducting plate of a cooling recirculation system, a group of device that freely can mount and dismount on lathe, a set of Insulation and high thermal conductivity coefficient.The exportable different temperatures liquid coolant of described cooling recirculation system, often organize the described circulation system and comprise a cooling cycle machine and an ebullator, described cooling cycle machine is provided with liquid coolant output temperature pick-up unit and liquid level detection device, wherein a cool cycles main line is High-temperature cooling circulation main line, comprises one and exports the first cooling cycle machine and the first ebullator that coolant temperature scope is 5 ~ 35 degrees Celsius; Other one group of liquid circulation main line is sub-cooled circulation main line, comprises one and exports the second cooling cycle machine and the second ebullator that coolant temperature scope is 5 ~ 35 degrees Celsius; Often organize cool cycles branch road and comprise an independent temperature case employing PID control model, the liquid coolant temperature in of each attemperating unit can be controlled respectively;
Described temperature-detecting device arranges outlet temperature sensor 6 at liquid coolant entrance 1 inlet porting temperature sensor 7 and cooling liquid outlet 2 respectively, described inlet temperature sensor 7 is all connected with PC with outlet temperature sensor 6, adopt LABVIEW collecting temperature signal, Real-Time Monitoring gateway coolant temperature;
Described Insulation comprise temperature regulating device removing and one deck copper coin of lathe surface of contact 3 outer all the other all with the aluminium sheet that coefficient of heat conductivity is lower, described Insulation also comprises heat insulation foam 8, to guarantee that ambient temperature is delivered to the external world of the heat loss of attemperating unit or attemperating unit, described high thermal conductivity coefficient copper coin 8 makes as far as possible many heats transmit between attemperating unit and lathe;
The described device that freely mounts and dismounts is made up of the magnet piece be embedded in aluminium sheet corner, can realize diverse location attemperating unit being arranged on lathe, to meet machine tool temperature field differential demand for control.
The present invention controls to comprise the following steps for realizing machine tool temperature field differential:
1. the attemperating unit being applicable to machine tool temperature field differential control is arranged on the position selected respectively;
2. open cooling recirculation system, set the output temperature of different independent temperature case;
3. open PC, cut-in temperature pick-up unit, Real-Time Monitoring gateway cooling liquid temperature difference;
4. according to the actual requirements, by changing independent temperature case cooling circulation liquid outlet temperature, then realizing machine tool temperature field differential and controlling.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (3)
1. be applicable to the attemperating unit that machine tool temperature field differential controls, it is characterized in that, can be divided into cool cycles part, free mounting portion, insulating sections three systems, its wherein said cool cycles part is hydraulic system;
The exportable different temperatures liquid coolant of described cooling recirculation system, often organize the described circulation system and comprise a cooling cycle machine and an ebullator, described cooling cycle machine is provided with liquid coolant output temperature pick-up unit and liquid level detection device, wherein a cool cycles main line is High-temperature cooling circulation main line, comprises one and exports the first cooling cycle machine and the first ebullator that coolant temperature scope is 5 ~ 35 degrees Celsius; Other one group of liquid circulation main line is sub-cooled circulation main line, comprises one and exports the second cooling cycle machine and the second ebullator that coolant temperature scope is 5 ~ 35 degrees Celsius; Often organize cool cycles branch road and comprise an independent temperature case employing PID control model, the liquid coolant temperature in of each attemperating unit can be controlled respectively; Described temperature-detecting device arranges outlet temperature sensor at liquid coolant entrance inlet porting temperature sensor and cooling liquid outlet respectively, described inlet temperature sensor is all connected with PC with outlet temperature sensor, adopt LABVIEW collecting temperature signal, Real-Time Monitoring gateway coolant temperature.
2. a kind of attemperating unit being applicable to machine tool temperature field differential and controlling according to claim 1, it is characterized in that, the described device that freely mounts and dismounts is made up of the strong magnetic iron block be embedded in aluminium sheet corner, diverse location attemperating unit being arranged on lathe can be realized, to meet machine tool temperature field differential demand for control.
3. a kind of attemperating unit being applicable to machine tool temperature field differential and controlling according to claim 1, it is characterized in that, described Insulation comprise temperature regulating device removing and one deck copper coin of lathe surface of contact outer all the other all with the aluminium sheet that coefficient of heat conductivity is lower, described Insulation also comprises heat insulation foam, to guarantee that ambient temperature is delivered to the external world of the heat loss of attemperating unit or attemperating unit, described high thermal conductivity coefficient copper coin makes as far as possible many heats transmit between attemperating unit and lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510993889.2A CN105446386A (en) | 2015-12-25 | 2015-12-25 | Temperature control device applicable to differentiated control of temperature field of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510993889.2A CN105446386A (en) | 2015-12-25 | 2015-12-25 | Temperature control device applicable to differentiated control of temperature field of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105446386A true CN105446386A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510993889.2A Pending CN105446386A (en) | 2015-12-25 | 2015-12-25 | Temperature control device applicable to differentiated control of temperature field of machine tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109176140A (en) * | 2018-10-09 | 2019-01-11 | 刘子良 | A method of for improving the cooling equipment temperature-controlled precision of electric main shaft of digital control machine tool |
| CN114326862A (en) * | 2022-01-18 | 2022-04-12 | 北京精雕科技集团有限公司 | Temperature self-adaptive adjusting method of cooling circulation loop |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235613A (en) * | 2013-04-03 | 2013-08-07 | 天津大学 | System and method for actively controlling precision machine tool temperature fields |
| CN103246300A (en) * | 2013-04-03 | 2013-08-14 | 天津大学 | Layered independent multipoint temperature control device applicable to machine tool temperature field differential control |
| CN104942650A (en) * | 2014-02-17 | 2015-09-30 | 德克尔马霍泽巴赫有限公司 | Machine tool having functional components that produce heating during operation |
-
2015
- 2015-12-25 CN CN201510993889.2A patent/CN105446386A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235613A (en) * | 2013-04-03 | 2013-08-07 | 天津大学 | System and method for actively controlling precision machine tool temperature fields |
| CN103246300A (en) * | 2013-04-03 | 2013-08-14 | 天津大学 | Layered independent multipoint temperature control device applicable to machine tool temperature field differential control |
| CN104942650A (en) * | 2014-02-17 | 2015-09-30 | 德克尔马霍泽巴赫有限公司 | Machine tool having functional components that produce heating during operation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109176140A (en) * | 2018-10-09 | 2019-01-11 | 刘子良 | A method of for improving the cooling equipment temperature-controlled precision of electric main shaft of digital control machine tool |
| CN114326862A (en) * | 2022-01-18 | 2022-04-12 | 北京精雕科技集团有限公司 | Temperature self-adaptive adjusting method of cooling circulation loop |
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Application publication date: 20160330 |