CN103246300A - Layered independent multipoint temperature control device applicable to machine tool temperature field differential control - Google Patents
Layered independent multipoint temperature control device applicable to machine tool temperature field differential control Download PDFInfo
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- CN103246300A CN103246300A CN2013101157890A CN201310115789A CN103246300A CN 103246300 A CN103246300 A CN 103246300A CN 2013101157890 A CN2013101157890 A CN 2013101157890A CN 201310115789 A CN201310115789 A CN 201310115789A CN 103246300 A CN103246300 A CN 103246300A
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Abstract
The invention discloses a layered independent multipoint temperature control device applicable to machine tool temperature field differential control. The device comprises two groups of cooling circulation primary lines which output cooling liquids at different temperatures, a plurality of cooling circulation branch lines which are connected with the groups of cooling circulation primary lines respectively and a control system, wherein each group of cooling circulation primary line comprises one cooling circulator having temperature detection and liquid level detection functions and one circulating pump; each group of cooling circulation branch lines comprises one independent temperature adjusting box, a cooling pipeline through which thermal loads flow, an input electromagnetic valve group and an output electromagnetic valve group; an inlet of the independent temperature adjusting box is connected with the two groups of the cooling circulation primary lines respectively through the inlet electromagnetic valve group, and an outlet of the independent temperature adjusting box is connected with an inlet of the cooling pipeline; and an outlet of the cooling pipeline is connected with inlets of the two groups of the cooling circulation branch lines respectively through the output electromagnetic valve group, and each group of cooling circulation branch lines is simultaneously communicated with each group of cooling circulation primary lines. The device meets differentiated requirements of different parts of a machine tool for temperature control liquids.
Description
Technical field
The present invention relates to the numerically-controlled machine processing technique field, particularly a kind of layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field.
Background technology
The workpiece accuracy of machine tooling generally is about 1.5-2 times (considering that technological capacity coefficient is generally about 1.33) of machine tool accuracy value, for example plain edition machine tool position precision is 0.025mm, process workpiece hole apart from precision about 0.04-0.05mm, this is that the distortion of considering process system, the influence of processing temperature field, workpiece material are inhomogeneous, tool precision influence etc., and wherein the lathe change of temperature field is one of key factor that influences machining precision.Any lathe is processed will consumption of power, produces heat, and heat is transmitted to each moving component of lathe and machine element, must cause the thermal deformation of lathe worker process system, causes the variation of workpiece machining precision.For example, a numerical control end mill commonly used, when lathe is changed over to when hot by cold conditions, main shaft is through behind the long-time high-speed motion, temperature tens degree that might rise cause the main spindle box temperature rise, comprehensive deformations such as the local layback of column thermal deformation, spindle centerline extension, main shaft end face new line, the end mill of centering small dimension may reach the length variations of 0.02-0.04mm on the main shaft end face.Main thermal source derives from each servomotor and spindle motor, high-speed moving part and hydraulic system etc. on the numerically-controlled machine.The circulation fluid type of cooling is as a kind of effective ways of controlling thermal deformation of machine tool, has been widely used in the manufacturing and designing of all kinds of precisions and ultra-precision machine tool.At present, the circulation fluid type of cooling generally adopts ebullator to make the heating mechanism that enters lathe bed body through the liquid coolant of apparatus for supercooling cooling, and take away heat, be back in the cooling device, finish cool cycles, thereby reduce the temperature of lathe heat generating components, realize the control of circulation fluid temperature, but its circulation fluid temperature is single, can't realize the multiple spot potential difference alienation control in lathe temperature field.
Summary of the invention
The present invention provides a kind of layering independence multiple spot attemperating unit that can be applicable to the differentiation control of lathe temperature field for solving the technical matters that exists in the known technology.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is: a kind of layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field, comprise two groups of cool cycles main lines, many groups cool cycles branch road and the control system that links to each other with every group of cool cycles main line respectively, described two groups of cool cycles main lines output different temperatures liquid coolant, every group of described cool cycles main line comprises 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, every group of described cool cycles branch road comprises an independent controlled temperature cabinet, the flow through cooling line of heat load, one group of input solenoid valve group and one group of output solenoid valve group, the input port of described independent controlled temperature cabinet links to each other with the delivery outlet on described two groups of cool cycles main lines respectively by described input solenoid valve group, the delivery outlet of described independent controlled temperature cabinet links to each other with the input port of described cooling line, the delivery outlet of described cooling line links to each other with the input port on described two groups of cool cycles main lines respectively by described output solenoid valve group, described control system is controlled described input solenoid valve group and the work of described output solenoid valve group, and every group of described cool cycles branch road only is communicated with one group of described cool cycles main line simultaneously.
Described each independent controlled temperature cabinet is provided with the branch control module that links to each other with described control system, control module comprised temperature sensor and temperature indicator in described minute, described temperature sensor detects the delivery outlet temperature of described independent controlled temperature cabinet, and described temperature indicator shows the delivery outlet temperature of described independent controlled temperature cabinet.
The delivery outlet of described each independent controlled temperature cabinet is provided with centrifugal blower-pump, is used for supercharging output cooling circulation liquid.
Described cooling cycle machine is provided with the warning device of upper temperature limit, lowest temperature, high liquid level and low liquid level.
Described control system also comprises communication unit, and described communication unit links to each other with host computer, the delivery outlet temperature of described cooling cycle machine is shown and sets by host computer.
Further, described communication unit is that 485 correspondence trays are grown up to be a useful person, and the communication interface that links to each other with host computer is USB interface.
Described control system also comprises communication unit, and described communication unit links to each other with host computer, the delivery outlet temperature of described independent controlled temperature cabinet is shown and sets by host computer.
Further, described communication unit is that 485 correspondence trays are grown up to be a useful person, and the communication interface that links to each other with host computer is USB interface.
Advantage and good effect that the present invention has are: the liquid circulation feed flow main line that different temperatures is set, and the cool cycles branch road that the independent allocation liquid coolant is cooled off the equipment thermal source is set, come the coolant temperature of each branch road output of independent regulation, thereby realize providing based on two cooling cycle machines the independent control of a plurality of independent controlled temperature cabinet liquid outlet circulation fluid temperature of high low temperature circulation fluid, satisfy the lathe different parts to the differentiated demand of coolant temperature.And according to the temperature setting of each independent controlled temperature cabinet delivery outlet and the feedback of measured value, control input solenoid valve group, the accurate ratio of high temperature and low temperature circulation fluid that realizes is mixed, and finishes the accurate temperature of each independent controlled temperature cabinet liquid outlet circulation fluid and controls.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1, control system; 2, frequency converter; 3-1, first ebullator; 3-2, second ebullator; 4-1, first cooling cycle machine; 4-2, second cooling cycle machine; 5-1, first pressure transducer; 5-2, second pressure transducer; 6, input solenoid valve group; 7, output solenoid valve group; 8, independent controlled temperature cabinet; 9, cooling line; 10, centrifugal blower-pump; 11, divide control module.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, a kind of layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field, comprise two groups of cool cycles main lines, the many groups cool cycles branch road that links to each other with every group of cool cycles main line and control system 1 respectively, described two groups of cool cycles main lines output different temperatures liquid coolant, every group of described cool cycles main line comprises 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, as shown in Figure 1, wherein one group of cool cycles main line is high temperature cool cycles main line, comprises that an output coolant temperature scope is the first cooling cycle machine 3-1 and the first ebullator 4-1 of 5～35 degree; Other one group of cool cycles main line is sub-cooled circulation main line, comprises that an output coolant temperature scope is the second cooling cycle machine 3-2 and the second ebullator 4-2 of 5～35 degree; Every group of described cool cycles branch road comprises an independent controlled temperature cabinet 8, the flow through cooling line 9 of heat load, one group of input solenoid valve group 6 and one group of output solenoid valve group 7, the input port of described independent controlled temperature cabinet 8 links to each other with the delivery outlet on described two groups of cool cycles main lines respectively by described input solenoid valve group 6, the delivery outlet of described independent controlled temperature cabinet 8 links to each other with the input port of described cooling line 9, the delivery outlet of described cooling line 9 links to each other with the input port on described two groups of cool cycles main lines respectively by described output solenoid valve group 7, the described control system 1 described input solenoid valve group 6 of control and 7 work of described output solenoid valve group only are communicated with every group of described cool cycles branch road simultaneously with one group of described cool cycles main line.
Wherein, input solenoid valve group 6 can by 2 independently solenoid valve form, also can be formed by pile-up valve, the electromagnetism pile-up valve that comprises combination functions such as having two-position three way commutation and flow control, being communicated with or disconnection between the liquid coolant delivery outlet that can control the cool cycles main line and each independent controlled temperature cabinet input port, can also further control flow etc. during connection, by control system 1, control the break-make of independent solenoid valve or pile-up valve, and the program setting of passing through controllers such as logical circuit or PLC, the corresponding solenoid valve electromagnet that drives spool of control, make the related and interlocking of drive magnetic action that is positioned at same cool cycles branch road, when realizing liquid circulation, the circulating fluid flow rate that flows into independent controlled temperature cabinet by a cooling cycle machine in unit interval equates with the circulating fluid flow rate that flows back to this cooling cycle machine, realize the backflow reasonable distribution, avoid two cooling cycle machines backflow inequalities and overflowing or the liquid level deficiency of causing.
Described each independent controlled temperature cabinet 8 can be provided with the branch control module 11 that links to each other with described control system 1, control module 11 comprised temperature sensor and temperature indicator in described minute, described temperature sensor detects the delivery outlet temperature of described independent controlled temperature cabinet 8, and described temperature indicator shows the delivery outlet temperature of described independent controlled temperature cabinet 8.
Can adopt the PID control model to the delivery outlet temperature target setting value of each described independent controlled temperature cabinet 8, can control described input solenoid valve group 6, the output coolant temperature of described independent controlled temperature cabinet 8 is carried out closed-loop control.
The delivery outlet of described each independent controlled temperature cabinet 8 can be provided with centrifugal blower-pump 10, and centrifugal blower-pump 10 links to each other with the input port of described cooling line 9, is used for supercharging output cooling circulation liquid to cooling line 9.
Described control system 1 can comprise frequency converter 2 and detect the pressure transducer of cool cycles main line output coolant pressure, as shown in Figure 1, wherein the first pressure transducer 5-1 detects the coolant pressure of high temperature cool cycles main line output, the second pressure transducer 5-2 detects the coolant pressure of sub-cooled circulation main line output, described control system 1 can be according to the detected pressure value of described pressure transducer, control the described ebullator of described frequency converter 2 frequency conversion drive, wherein, every ebullator needs a frequency converter frequency conversion drive, make the output pressure unanimity of described two ebullators, namely the first ebullator 4-1 is consistent with the output coolant pressure of the second ebullator 4-2.
Described cooling cycle machine can be provided with the warning device of upper temperature limit, lowest temperature, high liquid level and low liquid level, wherein the upper temperature limit of the first cooling cycle machine 3-1 can be made as 35 degree, lowest temperature can be made as 5 degree, the upper temperature limit of the second cooling cycle machine 3-2 can be made as 35 degree, and lowest temperature can be made as 5 degree.
Described control system 1 also can comprise communication unit, and described communication unit links to each other with host computer, the delivery outlet temperature of described cooling cycle machine is shown and sets by host computer.
Described control system 1 also can comprise communication unit, and described communication unit links to each other with host computer, the delivery outlet temperature of described independent controlled temperature cabinet is shown and sets by host computer.
Described control system 1 can be grown up to be a useful person by 485 correspondence trays and is converted to USB interface, link to each other with host computer, can pass through host computer, the cooling circulation liquid outlet temperature of every cooling cycle machine is shown and sets, and to demonstration and the setting of each independent controlled temperature cabinet cooling circulation liquid outlet temperature.
The present invention can may further comprise the steps for realizing the differentiation control of lathe temperature field:
1. the layering independence multiple spot attemperating unit that will be applicable to the control of lathe temperature field differentiation is grown up to be a useful person by 485 correspondence trays and is converted to USB interface, links to each other with host computer.
2. at first carry out demonstration and the setting of the second cooling cycle machine cool cycles liquid temp of first cooling cycle machine of high temperature and low temperature by host computer, to determine the upper limit and the lower limit of each independent controlled temperature cabinet liquid coolant output temperature value.
3. set each independent controlled temperature cabinet liquid coolant delivery rate respectively by manual manual control valve aperture.
4. according to the actual requirements, by host computer each independent temperature adjustment water tank cooling circulation liquid outlet temperature is set, realizes the control of layering independence multiple spot megadyne temperature degree then.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (8)
1. layering independence multiple spot attemperating unit that is applicable to the control of lathe temperature field differentiation, it is characterized in that, comprise two groups of cool cycles main lines, many groups cool cycles branch road and the control system that links to each other with every group of cool cycles main line respectively, described two groups of cool cycles main lines output different temperatures liquid coolant, every group of described cool cycles main line comprises 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, every group of described cool cycles branch road comprises an independent controlled temperature cabinet, the flow through cooling line of heat load, one group of input solenoid valve group and one group of output solenoid valve group, the input port of described independent controlled temperature cabinet links to each other with the delivery outlet on described two groups of cool cycles main lines respectively by described input solenoid valve group, the delivery outlet of described independent controlled temperature cabinet links to each other with the input port of described cooling line, the delivery outlet of described cooling line links to each other with the input port on described two groups of cool cycles main lines respectively by described output solenoid valve group, described control system is controlled described input solenoid valve group and the work of described output solenoid valve group, and every group of described cool cycles branch road only is communicated with one group of described cool cycles main line simultaneously.
2. the layering independence multiple spot attemperating unit that is applicable to the control of lathe temperature field differentiation according to claim 1, it is characterized in that, described each independent controlled temperature cabinet is provided with the branch control module that links to each other with described control system, control module comprised temperature sensor and temperature indicator in described minute, described temperature sensor detects the delivery outlet temperature of described independent controlled temperature cabinet, and described temperature indicator shows the delivery outlet temperature of described independent controlled temperature cabinet.
3. the layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field according to claim 1 and 2 is characterized in that the delivery outlet of described each independent controlled temperature cabinet is provided with centrifugal blower-pump, is used for supercharging output cooling circulation liquid.
4. the layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field according to claim 1 and 2 is characterized in that described cooling cycle machine is provided with the warning device of upper temperature limit, lowest temperature, high liquid level and low liquid level.
5. the layering independence multiple spot attemperating unit that is applicable to the control of lathe temperature field differentiation according to claim 1, it is characterized in that, described control system also comprises communication unit, described communication unit links to each other with host computer, the delivery outlet temperature of described cooling cycle machine is shown and sets by host computer.
6. the layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field according to claim 5 is characterized in that described communication unit is that 485 correspondence trays are grown up to be a useful person, and the communication interface that links to each other with host computer is USB interface.
7. the layering independence multiple spot attemperating unit that is applicable to the control of lathe temperature field differentiation according to claim 2, it is characterized in that, described control system also comprises communication unit, described communication unit links to each other with host computer, the delivery outlet temperature of described independent controlled temperature cabinet is shown and sets by host computer.
8. the layering independence multiple spot attemperating unit that is applicable to the differentiation control of lathe temperature field according to claim 7 is characterized in that described communication unit is that 485 correspondence trays are grown up to be a useful person, and the communication interface that links to each other with host computer is USB interface.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104848573A (en) * | 2015-05-25 | 2015-08-19 | 三河市同飞制冷设备有限公司 | Centralized temperature management system of metal cutting machine of numerical control machine tool |
| CN105446386A (en) * | 2015-12-25 | 2016-03-30 | 鼎奇(天津)主轴科技有限公司 | Temperature control device applicable to differentiated control of temperature field of machine tool |
| CN110153612A (en) * | 2019-04-30 | 2019-08-23 | 重庆山朕科技发展有限公司 | The welding fixture of energy-absorption box and bottom plate based on preceding anti-collision beam |
| CN112045168A (en) * | 2020-09-07 | 2020-12-08 | 北京理工大学 | Casting mold and temperature control method and device thereof |
| CN112397976A (en) * | 2020-11-11 | 2021-02-23 | 西南石油大学 | Laser with quick heat dissipation function |
| 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 |
| CN114405046A (en) * | 2022-02-28 | 2022-04-29 | 中国科学院长春应用化学研究所 | Cooling device based on vacuum sublimation purification equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848573A (en) * | 2015-05-25 | 2015-08-19 | 三河市同飞制冷设备有限公司 | Centralized temperature management system of metal cutting machine of numerical control machine tool |
| CN105446386A (en) * | 2015-12-25 | 2016-03-30 | 鼎奇(天津)主轴科技有限公司 | Temperature control device applicable to differentiated control of temperature field of machine tool |
| CN110153612A (en) * | 2019-04-30 | 2019-08-23 | 重庆山朕科技发展有限公司 | The welding fixture of energy-absorption box and bottom plate based on preceding anti-collision beam |
| CN112045168A (en) * | 2020-09-07 | 2020-12-08 | 北京理工大学 | Casting mold and temperature control method and device thereof |
| CN112045168B (en) * | 2020-09-07 | 2021-12-10 | 北京理工大学 | Casting mold and temperature control method and device thereof |
| CN112397976A (en) * | 2020-11-11 | 2021-02-23 | 西南石油大学 | Laser with quick heat dissipation function |
| CN112397976B (en) * | 2020-11-11 | 2021-09-28 | 西南石油大学 | Laser with quick heat dissipation function |
| 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 |
| CN114405046A (en) * | 2022-02-28 | 2022-04-29 | 中国科学院长春应用化学研究所 | Cooling device based on vacuum sublimation purification equipment |
| CN114405046B (en) * | 2022-02-28 | 2023-08-29 | 中国科学院长春应用化学研究所 | Cooling device based on vacuum sublimation purification equipment |
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