CN114161217A - Coolant liquid intelligence circulation recovery unit of digit control machine tool processing usefulness - Google Patents
Coolant liquid intelligence circulation recovery unit of digit control machine tool processing usefulness Download PDFInfo
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- CN114161217A CN114161217A CN202111361726.4A CN202111361726A CN114161217A CN 114161217 A CN114161217 A CN 114161217A CN 202111361726 A CN202111361726 A CN 202111361726A CN 114161217 A CN114161217 A CN 114161217A
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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
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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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
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1069—Filtration systems specially adapted for cutting liquids
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Abstract
The invention discloses an intelligent cooling liquid circulating and recycling device for machining of a numerical control machine, which comprises a numerical control machine and a cooling liquid circulating system and is characterized in that: the automatic waste scrap discharge device is characterized in that a moving frame is arranged above the numerical control machine tool, a drill frame is connected to the moving frame in a sliding mode, a feeding cylinder is arranged above the drill frame, an output rod is arranged at the lower end of the feeding cylinder, the output rod and the feeding frame are fixedly installed, a rotating motor is arranged at the lower end of the feeding frame, a drill bit is arranged at the lower end of the rotating motor, a support frame is arranged at the lower end of the inner side of the numerical control machine tool, two telescopic cylinders are arranged inside the numerical control machine tool, a telescopic rod is arranged on one side of each telescopic cylinder, a cooling pump is fixedly installed on one side of each telescopic rod, a sprinkler head is connected to one side of each cooling pump in a bearing mode, and a filter box is arranged at the lower end of the numerical control machine tool.
Description
Technical Field
The invention relates to the technical field of machine tool cooling, in particular to an intelligent circulating and recycling device for cooling liquid for machining of a numerical control machine tool.
Background
The numerically controlled machine tool is one kind of automatic machine tool with program control system. The control system is capable of logically processing and decoding a program defined by a control code or other symbolic instructions, represented by coded numbers, which are input to the numerical control device via the information carrier. After operation, the numerical control device sends out various control signals to control the action of the machine tool, and the parts are automatically machined according to the shape and the size required by the drawing.
The existing numerical control machine tool cannot ensure that a processing part is cooled well when drilling and processing, and can not ensure that scraps cannot splash well.
Therefore, it is necessary to design an intelligent cooling liquid circulation and recovery device for machining a numerical control machine tool, which has a good cooling effect and can not cause waste chips to splash.
Disclosure of Invention
The invention aims to provide an intelligent cooling liquid circulating and recycling device for machining of a numerical control machine tool, and the device is used for solving the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a coolant liquid intelligence circulation recovery unit of digit control machine tool processing usefulness, includes digit control machine tool, coolant liquid circulation system, its characterized in that: the top of digit control machine tool is provided with the removal frame, sliding connection has the drill jig on the removal frame, the top of drill jig is provided with feed cylinder, feed cylinder's lower extreme is provided with the delivery rod, the lower extreme fixed mounting of delivery rod has the feed frame, feed frame and drill jig are sliding connection, the lower extreme of feed frame is provided with the rotation motor, the lower extreme of rotating the motor is provided with the brill sword, the inboard lower extreme of digit control machine tool is provided with the support frame.
According to the technical scheme, two telescopic cylinders are arranged in the numerical control machine tool, one side of each telescopic cylinder is provided with a telescopic rod, a cooling pump is fixedly arranged on one side of the telescopic rod, a bearing on one side of the cooling pump is connected with a spraying head, the lower end of the numerical control machine tool is provided with a filter box, the lower side of the numerical control machine tool is provided with a clamp, a filter screen is arranged in the filter box, an adjusting cylinder is arranged at one side of the filter box, a self-pushing arm is arranged at one side of the adjusting cylinder, the self-pushing arm is attached to the filter screen, the upper side bearing of the filter box is connected with a chip removal door, a torque spring is arranged at the joint of the filter box and the bearing of the chip removal door, one side of the filter box is provided with a temperature sensor, the right side of the lower end of the filter box is provided with a backflushing pump, and the left side of the upper end of the filter box is provided with a pressure valve.
According to the technical scheme, the cooling liquid circulating system comprises a detection module, a cooling module, a filtering module and a feeding control module, wherein the detection module is electrically connected with the cooling module, and the feeding control module is electrically connected with the filtering module;
the detection module is used for detecting the temperature of the cooling liquid, the cooling module is used for pumping the cooling liquid, the filtering module is used for filtering the cooling liquid when the cooling liquid is circulated, and the control module is used for controlling the drilling progress.
According to the technical scheme, the detection module comprises a temperature detection unit and a timing unit, the cooling module comprises an injection control unit and a flow control unit, and the timing unit is electrically connected with the flow control unit;
the temperature detection unit is used for detecting the temperature of the circulating liquid, the timing unit is used for timing, the injection control unit is used for controlling the spraying angle of the cooling liquid, and the flow control unit is used for controlling the flow of the cooling liquid.
According to the technical scheme, the filtering module comprises a backflushing unit, a filtering unit and a self-pushing unit, the control module comprises a rotating speed control unit and a feeding control unit, the feeding control unit is electrically connected with the timing unit, the rotating speed control unit is electrically connected with the backflushing unit, and the feeding control unit is electrically connected with the self-pushing unit;
the recoil unit is used for flushing the filter screen to avoid the filter screen from being blocked, the filtering unit is used for filtering the cooling liquid to avoid too much broken bits in the cooling liquid to influence the cooling performance of the cooling liquid, and the self-pushing module is used for cleaning the broken bits of the filter screen.
According to the technical scheme, the working process of the cooling liquid circulating system comprises the following steps:
s1: inputting the material of a workpiece to be processed, and determining a spraying angle according to the drilling depth to avoid the chips from splashing and accumulating in the numerical control machine tool to influence the service life of the numerical control machine tool;
s2: adjusting the pumping speed of the cooling liquid according to the rotating speed and the feeding rate of the drill cutter;
s3: collecting the cooling liquid at the washed processing part, and filtering the cooling liquid;
s4: measuring the temperature of the cooling liquid before filtering, and determining the flow rate of the cooling liquid according to the temperature change rate of the cooling liquid;
s5: during filtering, a cleaning mode is determined according to the product of the feeding rate and the rotating speed, and the filter screen is prevented from being blocked on the basis of ensuring energy conservation;
s6: and controlling the temperature of the filtered cooling liquid, and spraying the cooling liquid from the cooling pump again when the temperature returns to be normal, and repeating the steps S1-S6.
According to the above technical solution, in the above steps S1 and S2, the spraying angle of the cooling liquid needs to be determined according to the drilling depth, when drilling is started, the chips are mainly sputtered in the horizontal direction, here, the cooling liquid needs to be controlled to be sprayed from the horizontal direction, as the drilling depth increases, the spraying angle of the chips gradually changes from the horizontal direction to the vertical direction, at this time, the spraying angle of the cooling liquid also needs to change along with the sputtering angle of the chips, and when the spraying angle of the cooling liquid changes, the height of the cooling pump needs to be adjusted and controlled, so that the cooling liquid can be sprayed to the processing position;
the variation trend of the injection angle alpha of the cooling liquid can be calculated according to the following calculation formula:
α＝μr
in the formula, mu is an angle conversion coefficient, and r is the drilling depth;
the height h of the cooling pump can be calculated by means of the following calculation:
in the formula: l is the horizontal distance from the cooling pump to the processing position, and s is the vertical height from the upper surface of the processing position to the upper surface of the telescopic cylinder;
when the coolant liquid sprays, still need to regulate and control the injection rate of coolant liquid according to the rotational speed and the feed rate of boring cutter, the splash of sweeps is big more when the rotational speed of cutter is big more, it has bigger washing speed to need the coolant liquid this moment, avoid the sweeps to rush out the blockade scope of coolant liquid, and when feed speed is fast more, the spraying rate of coolant liquid also needs appropriate promotion, avoid the sweeps of same time to spill too much, lead to partly sweeps to rush out sealing of coolant liquidLock range, injection rate of cooling liquid VColdThe calculation is performed by means of the following calculation:
in the formula: delta is a correction factor, n is the rotational speed of the tool, VIntoIs the feed rate.
According to the above technical solution, in the step S4, the temperature of the internal scraps can be calculated according to the temperature increase rate of the cooling fluid, so as to approximately obtain the temperature of the drilling position, the flow rate of the cooling fluid can be further determined according to the temperature of the drilling position, when the temperature of the drilling position is higher, more cooling fluid is needed, when the temperature of the drilling position is lower, less cooling fluid can be sprayed, and unnecessary energy loss caused by the circulation of the cooling fluid is avoided;
the coolant flow Q may be calculated by means of the following calculation:
in the formula:
to adjust the coefficient, T1Is the temperature of the coolant, T is a short time, T2Is the temperature of the coolant, R, after a short period of timeThermal resistanceIs the thermal resistance between the swarf and the coolant.
According to the above technical solution, the step S5 further includes the following steps:
s51: according to the comparison result of the material of the processed workpiece, the rotating speed of the drill cutter, the feeding rate and the internal data, when the value of the rotating speed divided by the feeding rate is larger than h, small scraps can be generated;
s52: when in use
When the temperature of the water is higher than the set temperature,starting a self-pushing unit to remove the scraps blocked on the filter screen;
s53: when in use
When the self-propelled unit is used, the recoil unit is started, the situation that the scraps are too small and cannot be hung up by the self-propelled unit is avoided, but the recoil unit cannot be started when the scraps can be normally cleared by the self-propelled unit because the energy consumption of the recoil unit is large.
According to the above technical solution, in the step S51, the self-pushing unit is always 1 time/min, so as to avoid the filter screen from being clogged by the scraps, and when the self-pushing unit is used, the filter screen is not clogged
When the self-propelled unit is used, the propelling speed is higher, the self-propelled efficiency is increased, and when the self-propelled unit is used, the propelling speed is higher
When the filter screen is pushed fast, the filter screen is damaged due to the fact that the pushing speed of the self-pushing unit is low, and small waste chips are prevented from being clamped in the filter screen.
Compared with the prior art, the invention has the following beneficial effects: the invention can avoid the waste of cooling liquid while ensuring the cooling efficiency, can effectively avoid the service life reduction of the numerical control machine tool caused by scraps, can effectively avoid blockage when circulating the cooling liquid, and increases the processing efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall front perspective of the present invention;
FIG. 2 is a schematic view of the underside structure of the numerically controlled machine tool of the present invention;
FIG. 3 is a schematic view of the internal structure of the filtration tank of the present invention;
FIG. 4 is a schematic diagram of the system architecture of the present invention;
in the figure: 1. a numerical control machine tool; 2. a movable frame; 3. a feed cylinder; 4. a drilling frame; 5. a feed carriage; 6. rotating the motor; 7. drilling a cutter; 8. a cooling pump; 9. a sprinkler head; 10. a filter box; 101. filtering with a screen; 102. an adjusting cylinder; 103. a self-pushing arm; 104. a temperature sensor; 105. a chip removal door; 106. a back flushing pump; 107. a pressure valve; 11. a telescopic cylinder; 12. and (4) clamping.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a coolant liquid intelligence circulation recovery unit of digit control machine tool processing usefulness, includes digit control machine tool 1, coolant liquid circulation system, its characterized in that: a moving frame 2 is arranged above the numerical control machine tool 1, a drill frame 4 is connected to the moving frame 2 in a sliding mode, a feeding cylinder 3 is arranged above the drill frame 4, an output rod is arranged at the lower end of the feeding cylinder 3, a feeding frame 5 is fixedly installed at the lower end of the output rod, the feeding frame 5 is connected with the drill frame 4 in a sliding mode, a rotating motor 6 is arranged at the lower end of the feeding frame 5, a drill knife 7 is arranged at the lower end of the rotating motor 6, and a support frame 10 is arranged at the lower end of the inner side of the numerical control machine tool 1; the feeding cylinder 3 drives the feeding frame 5 to complete feeding of the drill 7 through the output rod, the feeding speed is adjustable, and the rotating motor 6 drives the drill 7 to rotate at a high speed to complete drilling.
The numerical control machine tool comprises a numerical control machine tool 1, wherein two telescopic cylinders 11 are arranged in the numerical control machine tool 1, a telescopic rod is arranged on one side of each telescopic cylinder 11, a cooling pump 8 is fixedly installed on one side of each telescopic rod, a sprinkler head 9 is connected to a bearing on one side of each cooling pump 8, a filter box 10 is arranged at the lower end of the numerical control machine tool 1, a clamp 12 is arranged on the lower side of the numerical control machine tool 1, a filter screen 101 is arranged in the filter box 10, an adjusting cylinder 102 is arranged on one side of the filter box 10, a self-pushing arm 103 is arranged on one side of the adjusting cylinder 102, the self-pushing arm 103 is attached to the filter screen 101, a chip removal door 105 is connected to a bearing on the upper side of the filter box 10, a torque spring is arranged at the bearing connection position of the filter box 10 and the chip removal door 105, a temperature sensor 104 is arranged on one side of the filter box 10, a recoil pump 106 is arranged on the right side of the lower end of the filter box 10, and a pressure valve 107 is arranged on the left side of the upper end of the filter box 10; the height of the cooling pump 8 is controlled to change through the telescopic rod by the telescopic cylinder 11, the relative angle between the sprinkler head 9 and the cooling pump 8 can be changed, the clamp 12 is used for clamping a workpiece, the filter screen 101 is used for filtering cooling liquid, the adjusting cylinder 102 drives the self-pushing arm 103 to move to take away large scraps on the filter screen 101, the scrap discharge door 105 can be pushed open to discharge the scraps, the temperature sensor 104 is used for measuring the temperature of the cooling liquid, a recoil liquid flow can be generated after the recoil pump 106 is started, and the recoil liquid flow can push the pressure valve 107 open to discharge impurities from the pressure valve 107.
The cooling liquid circulating system comprises a detection module, a cooling module, a filtering module and a feeding control module, wherein the detection module is electrically connected with the cooling module, and the feeding control module is electrically connected with the filtering module;
the detection module is used for detecting the temperature of the cooling liquid, the cooling module is used for pumping the cooling liquid, the filtering module is used for filtering the cooling liquid when the cooling liquid is circulated, and the control module is used for controlling the drilling progress.
The detection module comprises a temperature detection unit and a timing unit, the cooling module comprises an injection control unit and a flow control unit, and the timing unit is electrically connected with the flow control unit;
the temperature detection unit is used for detecting the temperature of the circulating liquid, the timing unit is used for timing, the injection control unit is used for controlling the spraying angle of the cooling liquid, and the flow control unit is used for controlling the flow of the cooling liquid.
The filtering module comprises a backflushing unit, a filtering unit and a self-pushing unit, the control module comprises a rotating speed control unit and a feeding control unit, the feeding control unit is electrically connected with the timing unit, the rotating speed control unit is electrically connected with the backflushing unit, and the feeding control unit is electrically connected with the self-pushing unit;
the recoil unit is used for flushing the filter screen 101 to avoid the blockage of the filter screen 101, the filter unit is used for filtering cooling liquid to avoid the influence on the cooling performance caused by excessive broken chips in the cooling liquid, and the self-pushing module is used for cleaning the broken chips of the filter screen 101.
The working process of the cooling liquid circulating system comprises the following steps:
s1: inputting the material of the workpiece to be processed, and determining the spraying angle according to the drilling depth, so that the chips are prevented from being splashed out and accumulated in the numerical control machine 1, and the service life of the numerical control machine 1 is prevented from being influenced;
s2: the pumping speed of the cooling liquid is adjusted according to the rotating speed and the feeding rate of the drill bit 7;
s3: collecting the cooling liquid at the washed processing part, and filtering the cooling liquid;
s4: measuring the temperature of the cooling liquid before filtering, and determining the flow rate of the cooling liquid according to the temperature change rate of the cooling liquid;
s5: during filtering, a cleaning mode is determined according to the product of the feeding rate and the rotating speed, and the filter screen (101) is prevented from being blocked on the basis of ensuring energy conservation;
s6: and controlling the temperature of the filtered cooling liquid, re-spraying the cooling liquid from the cooling pump 8 when the temperature returns to normal, and repeating the steps S1-S6.
In the above steps S1 and S2, the spraying angle of the cooling liquid needs to be determined according to the drilling depth, when drilling is started, the chips are mainly sputtered in the horizontal direction, the cooling liquid needs to be controlled to be sprayed from the horizontal direction, the spraying angle of the chips gradually changes from the horizontal direction to the vertical direction along with the increase of the drilling depth, the spraying angle of the cooling liquid also needs to change along with the sputtering angle of the chips, and when the spraying angle of the cooling liquid changes, the height of the cooling pump 8 needs to be adjusted and controlled, so that the cooling liquid can be sprayed to the machining position;
the variation trend of the injection angle alpha of the cooling liquid can be calculated according to the following calculation formula:
α＝μr
in the formula, mu is an angle conversion coefficient, and r is the drilling depth;
the height h of the cooling pump 8 can be calculated by means of the following calculation:
in the formula: l is the horizontal distance from the cooling pump 8 to the processing position, and s is the vertical height from the upper surface of the processing position to the upper surface of the telescopic cylinder 11;
when the coolant liquid sprays, still need to regulate and control the injection rate of coolant liquid according to the rotational speed and the feed rate of boring cutter 7, the splash of sweeps is big when the rotational speed of cutter is big more, it has bigger washing speed to need the coolant liquid this moment, avoid the sweeps to rush out the blockade range of coolant liquid, and when feed speed is fast more, the spraying rate of coolant liquid also needs appropriate promotion, avoid the sweeps of same time to spill too much, lead to the blockade range that partial sweeps rush out the coolant liquid, the injection rate V of coolant liquidColdThe calculation is performed by means of the following calculation:
in the formula: delta is a correction factor, n is the rotational speed of the tool, VIntoIs the feed rate.
In the step S4, the temperature of the coolant can be calculated according to the temperature increase rate of the coolant, so as to approximate the temperature of the drilling location, and the flow rate of the coolant can be further determined according to the temperature of the drilling location, when the temperature of the drilling location is higher, more coolant is needed, when the temperature of the drilling location is lower, less coolant can be sprayed, and unnecessary energy loss caused by coolant circulation is avoided;
the coolant flow Q may be calculated by means of the following calculation:
in the formula:
to adjust the coefficient, T1Is the temperature of the coolant, T is a short time, T2Is the temperature of the coolant, R, after a short period of timeThermal resistanceIs the thermal resistance between the swarf and the coolant.
The step S5 further includes the following steps:
s51: according to the comparison result of the material of the processed workpiece, the rotating speed of the drill bit 7, the feeding rate and the internal data, when the value of the rotating speed divided by the feeding rate is larger than h, small scraps can be generated;
s52: when in use
When the filter screen is used, the self-pushing unit is started to remove the scraps blocked on the filter screen 101;
s53: when in use
When the self-propelled unit is used, the recoil unit is started, the situation that the scraps are too small and cannot be hung up by the self-propelled unit is avoided, but the recoil unit cannot be started when the scraps can be normally cleared by the self-propelled unit because the energy consumption of the recoil unit is large.
In the step S51, the self-pushing unit is always 1 time/min to avoid the filter net 101 from being clogged by the scraps, and when the self-pushing unit is used, the filter net is opened
When the self-propelled unit is used, the propelling speed is higher, the self-propelled efficiency is increased, and when the self-propelled unit is used, the propelling speed is higher
When the pushing speed is high, the filter screen 101 is damaged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a coolant liquid intelligence circulation recovery unit of digit control machine tool processing usefulness, includes digit control machine tool (1), coolant liquid circulation system, its characterized in that: the top of digit control machine tool (1) is provided with removes frame (2), sliding connection has drill jig (4) on removing frame (2), the top of drill jig (4) is provided with feed cylinder (3), the lower extreme that feeds cylinder (3) is provided with the output pole, the lower extreme fixed mounting of output pole has feed frame (5), feed frame (5) and drill jig (4) for sliding connection, the lower extreme that feeds frame (5) is provided with rotates motor (6), the lower extreme that rotates motor (6) is provided with boring cutter (7), the inboard lower extreme of digit control machine tool (1) is provided with support frame (10).
2. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: the inside of digit control machine tool (1) is provided with two telescopic cylinder (11), one side of telescopic cylinder (11) is provided with the telescopic link, one side fixed mounting of telescopic link has cooling pump (8), one side bearing of cooling pump (8) is connected with sprinkler head (9), the lower extreme of digit control machine tool (1) is provided with rose box (10), the downside of digit control machine tool (1) is provided with anchor clamps (12), the inside of rose box (10) is provided with filter screen (101), one side of rose box (10) is provided with adjusting cylinder (102), one side of adjusting cylinder (102) is provided with from pushing arm (103), from pushing arm (103) and filter screen (101) laminating mutually, the upside bearing of rose box (10) is connected with chip removal door (105), the bearing junction of rose box (10) and chip removal door (105) is provided with torque spring, one side of the filter box (10) is provided with a temperature sensor (104), the right side of the lower end of the filter box (10) is provided with a backflushing pump (106), and the left side of the upper end of the filter box (10) is provided with a pressure valve (107).
3. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: the cooling liquid circulating system comprises a detection module, a cooling module, a filtering module and a feeding control module, wherein the detection module is electrically connected with the cooling module, and the feeding control module is electrically connected with the filtering module;
the detection module is used for detecting the temperature of the cooling liquid, the cooling module is used for pumping the cooling liquid, the filtering module is used for filtering the cooling liquid when the cooling liquid is circulated, and the control module is used for controlling the drilling progress.
4. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: the cooling module comprises an injection control unit and a flow control unit, and the timing unit is electrically connected with the flow control unit;
the temperature detection unit is used for detecting the temperature of the circulating liquid, the timing unit is used for timing, the injection control unit is used for controlling the spraying angle of the cooling liquid, and the flow control unit is used for controlling the flow of the cooling liquid.
5. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: the filter module comprises a backflushing unit, a filter unit and a self-pushing unit, the control module comprises a rotating speed control unit and a feeding control unit, the feeding control unit is electrically connected with the timing unit, the rotating speed control unit is electrically connected with the backflushing unit, and the feeding control unit is electrically connected with the self-pushing unit;
the effect of recoil unit lies in washing filter screen (101), avoids filter screen (101) to block up, the effect of filter unit lies in filtering the coolant liquid, avoids the bits too much to lead to influencing its cooling performance in the coolant liquid, the effect of self-propelled module lies in the piece of clearance filter screen (101).
6. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: the working process of the cooling liquid circulating system comprises the following steps:
s1: inputting the material of a workpiece to be processed, and determining the spraying angle according to the drilling depth to avoid the chips from splashing and accumulating in the numerical control machine (1) to influence the service life of the numerical control machine (1);
s2: the pumping speed of the cooling liquid is adjusted according to the rotating speed and the feeding rate of the drill (7);
s3: collecting the cooling liquid at the washed processing part, and filtering the cooling liquid;
s4: measuring the temperature of the cooling liquid before filtering, and determining the flow rate of the cooling liquid according to the temperature change rate of the cooling liquid;
s5: during filtering, a cleaning mode is determined according to the product of the feeding rate and the rotating speed, and the filter screen (101) is prevented from being blocked on the basis of ensuring energy conservation;
s6: and controlling the temperature of the filtered cooling liquid, and spraying the cooling liquid from the cooling pump (8) again when the temperature returns to normal, and repeating the steps S1-S6.
7. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: in the above steps S1 and S2, the spraying angle of the cooling liquid needs to be determined according to the drilling depth, when drilling is started, the scraps are mainly sputtered in the horizontal direction, here, the spraying of the cooling liquid needs to be controlled from the horizontal direction, as the drilling depth increases, the sputtering angle of the scraps is gradually changed from the horizontal direction to the vertical direction, at this time, the spraying angle of the cooling liquid also needs to be changed along with the sputtering angle of the scraps, and when the spraying angle of the cooling liquid changes, the height of the cooling pump (8) needs to be regulated and controlled, so that the cooling liquid can be sprayed to the processing position;
the variation trend of the injection angle alpha of the cooling liquid can be calculated according to the following calculation formula:
α＝μr
in the formula, mu is an angle conversion coefficient, and r is the drilling depth;
the height h of the cooling pump (8) can be calculated by means of the following calculation:
in the formula: l is the horizontal distance from the cooling pump (8) to the processing position, and s is the vertical height from the upper surface of the processing position to the upper surface of the telescopic cylinder (11);
when the coolant liquid sprays, still need to regulate and control the injection rate of coolant liquid according to the rotational speed and the feed rate of boring cutter (7), the splash of sweeps is big when the rotational speed of cutter is big more, it has bigger washing speed to need the coolant liquid this moment, avoid the sweeps to dash out the blockade range of coolant liquid, and when feed rate is fast more, the spraying rate of coolant liquid also needs appropriate promotion, avoid the sweeps of same time to spill too much, lead to the blockade range of part sweeps to dash out the coolant liquid, the injection rate V of coolant liquidColdThe calculation is performed by means of the following calculation:
in the formula: delta is a correction factor, n is the rotational speed of the tool, VIntoIs the feed rateAnd (4) rate.
8. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: in the step S4, the temperature of the coolant can be calculated according to the temperature increase rate of the coolant, so as to approximate the temperature of the drilling location, and the flow rate of the coolant can be further determined according to the temperature of the drilling location, when the temperature of the drilling location is higher, more coolant is needed, when the temperature of the drilling location is lower, less coolant can be sprayed, and unnecessary energy loss caused by coolant circulation is avoided;
the coolant flow Q may be calculated by means of the following calculation:
in the formula:
to adjust the coefficient, T1Is the temperature of the coolant, T is a short time, T2Is the temperature of the coolant, R, after a short period of timeThermal resistanceIs the thermal resistance between the swarf and the coolant.
9. The intelligent cooling liquid circulation and recovery device for machining of the numerical control machine tool is characterized in that: the step S5 further includes the following steps:
s51: according to the comparison result of the material of the processed workpiece, the rotating speed of the drill (7), the feeding rate and the internal data, when the value of the rotating speed divided by the feeding rate is larger than h, small scraps are generated;
s52: when in use
When the filter screen is used, the self-pushing unit is started to remove the scraps blocked on the filter screen (101);
s53: when in use
When the self-propelled unit is used, the recoil unit is started, the situation that the scraps are too small and cannot be hung up by the self-propelled unit is avoided, but the recoil unit cannot be started when the scraps can be normally cleared by the self-propelled unit because the energy consumption of the recoil unit is large.
10. The intelligent circulation and recovery device for the cooling liquid for the machining of the numerical control machine tool is characterized in that: in the step S51, the self-pushing unit is always 1 time/min to avoid the filter screen (101) from being blocked by the scraps, and when the scraps are not blocked, the filter screen is opened
When the self-propelled unit is used, the propelling speed is higher, the self-propelled efficiency is increased, and when the self-propelled unit is used, the propelling speed is higher
When the pushing speed is high, the filter screen (101) is damaged.
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| CN202111361726.4A CN114161217A (en) | 2021-11-17 | 2021-11-17 | Coolant liquid intelligence circulation recovery unit of digit control machine tool processing usefulness |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770205A (en) * | 2022-06-21 | 2022-07-22 | 南通睿格特智能科技有限公司 | Numerical control machine tool based on digital twinning technology |
| CN114815095A (en) * | 2022-05-30 | 2022-07-29 | 武汉电信器件有限公司 | Circulating liquid cooling module device and using method |
| CN115008250A (en) * | 2022-06-27 | 2022-09-06 | 南通纳侬精密机械有限公司 | But digit control machine tool of self-diagnosis trouble |
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2021
- 2021-11-17 CN CN202111361726.4A patent/CN114161217A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815095A (en) * | 2022-05-30 | 2022-07-29 | 武汉电信器件有限公司 | Circulating liquid cooling module device and using method |
| CN114770205A (en) * | 2022-06-21 | 2022-07-22 | 南通睿格特智能科技有限公司 | Numerical control machine tool based on digital twinning technology |
| CN115008250A (en) * | 2022-06-27 | 2022-09-06 | 南通纳侬精密机械有限公司 | But digit control machine tool of self-diagnosis trouble |
| CN115008250B (en) * | 2022-06-27 | 2023-08-22 | 南通纳侬精密机械有限公司 | Numerical control machine tool capable of self-diagnosing faults |
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