CN110883606A - Digit control machine tool coolant liquid cyclic utilization device - Google Patents
Digit control machine tool coolant liquid cyclic utilization device Download PDFInfo
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- CN110883606A CN110883606A CN201911157304.8A CN201911157304A CN110883606A CN 110883606 A CN110883606 A CN 110883606A CN 201911157304 A CN201911157304 A CN 201911157304A CN 110883606 A CN110883606 A CN 110883606A
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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
Abstract
The invention relates to the technical field of machine tool cooling liquid recycling, in particular to a numerically-controlled machine tool cooling liquid recycling device, which comprises a semiconductor refrigerator, a heat exchange channel, a first cooling medium channel, an air pipe, a feed fan and a filtering mechanism, wherein the air pipe is provided with an inlet and an outlet, the output end of the feed fan is communicated with the inlet, the refrigerating end of the semiconductor refrigerator is arranged in the air pipe, the outlet is provided with an air passing cylinder, a space is formed between the inner wall and the outer wall of the air passing cylinder, the space forms the first cooling medium channel, the inner wall of the air passing cylinder is provided with a helical blade, the center of the helical blade is provided with a hollow shaft, the outer surface of the helical blade and the inner wall of the air passing cylinder form the heat exchange channel, the inner wall of the hollow shaft forms a second cooling medium channel, outlet air is respectively communicated with one end of the first cooling medium channel and one end of the second cooling, the filtering mechanism is communicated with one of the drainage parts, and the invention can improve the quality and efficiency of the recovered cooling liquid.
Description
Technical Field
The invention relates to the technical field of machine tool cooling liquid recycling, in particular to a cooling liquid recycling device of a numerical control machine tool.
Background
The numerical control machine tool is a digital control machine tool for short, and is an automatic machine tool provided with a program control system. The control system can logically process a program defined by a control code or other symbolic instructions, control the operation of the machine tool, and automatically machine the part. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and multi-variety parts. Cooling liquid is often needed in the process of processing materials by a numerical control machine tool, the cooling liquid generally needs to be recycled, and in the process of recycling the cooling liquid, the cooling liquid to be utilized needs to be refrigerated so as to achieve the purpose of recycling; the existing cooling liquid has poor cooling effect and cannot meet the cooling requirement; in addition, because the machining environment of the numerical control machine tool is complex, more burrs and scraps exist, and more scraps exist in the cooling liquid, so that the cooling liquid can be recycled only by filtering, the filtering effect of the conventional cooling liquid recovery device is poor, which is mainly reflected in that the possibility of blockage of a filter screen in the filtering device is greatly increased due to the fact that the cooling liquid possibly contains too much slag due to the special reasons; the human may need to constantly attend to the filtration apparatus for maintenance down time, which delays production and wastes unnecessary manpower.
Disclosure of Invention
The invention aims to provide a cooling liquid recycling device of a numerical control machine tool.
In order to achieve the purpose, the invention adopts the following technical scheme:
the cooling liquid recycling device comprises a controller, a semiconductor refrigerator, a heat exchange channel, a first cold medium channel, an air pipe, a feeding fan and a filtering mechanism, wherein the air pipe is provided with an inlet and an outlet, the output end of the feeding fan is communicated with the inlet, the refrigerating end of the semiconductor refrigerator is arranged in the air pipe, the outlet is provided with a wind-walking cylinder, the upper end and the lower end of the wind-walking cylinder are of a closed structure, a space is formed between the inner wall and the outer wall of the wind-walking cylinder, the first cold medium channel is formed by the space, helical blades extending along the axial direction of the wind-walking cylinder are arranged between the inner walls of the wind-walking cylinder, a hollow shaft is arranged at the center of each helical blade, the hollow shaft, the helical blades and the wind-walking cylinder are overlapped in axial line, the outer surfaces of the helical blades are attached to the inner wall of the wind-walking cylinder, the heat exchange channel is formed between the inner surfaces of the helical blades, the heat exchange channel is used for flowing cooling liquid, the inner wall of the hollow shaft forms a second cold medium channel, the outlet air is respectively communicated with one end of the first cold medium channel and one end of the second cold medium channel through Y-shaped pipes, the other end of the first cold medium channel and the other end of the second cold medium channel are provided with circulation ports, two ends of the air walking cylinder are provided with drainage parts, the output end of the filtering mechanism is communicated with one drainage part through a circulation pipeline, the other drainage part is used for discharging the cooling liquid out of the heat exchange channel, and the first cold medium channel, the second cold medium channel and the heat exchange channel are not communicated with each other.
Furthermore, two ends of the air-moving cylinder are respectively provided with a sealing disc, the sealing discs form a closed structure at the end part of the air-moving cylinder, each sealing disc comprises an outer ring disc and an inner ring disc arranged at the inner ring of the outer ring disc, the outer ring disc corresponds to the first cold medium channel and is used for sealing the first cold medium channel, the inner ring disc corresponds to the end part of the hollow shaft and is used for sealing the second cold medium channel, the diameter of the inner ring disc is larger than the outer diameter of the hollow shaft, and two ends of the hollow shaft are respectively connected with the inner surfaces of the two inner ring discs in a sealing manner.
Furthermore, the drainage part comprises a drainage main pipe and a plurality of drainage branch pipes which are distributed around the drainage main pipe at equal intervals in the circumferential direction, one end of each drainage branch pipe is communicated with the drainage main pipe, the other end of each drainage branch pipe penetrates through the inner circular disc and is communicated with the heat exchange channel, all the drainage branch pipes are located at the eccentric position of the inner circular disc, the two branched ends of the Y-shaped pipe penetrate through the outer surface of one end of the air-moving cylinder and one of the inner circular discs and are communicated with the first cooling medium channel and the second cooling medium channel respectively, a first outlet pipe is transversely inserted into the outer surface of the other end of the air-moving cylinder, a second outlet pipe communicated with the hollow shaft penetrates through the other inner circular disc, and the first outlet pipe and the second outlet pipe form circulation ports of the first cooling medium channel and the second cooling medium channel respectively.
Furthermore, the flowing direction of the media in the first cold medium channel and the second cold medium channel is opposite to the flowing direction of the fluid in the heat exchange channel.
Further, filtering mechanism is including filtering storehouse, medium guide portion, filtering part and recoil cleaning portion, left and right filter chamber is separated into through the baffle in the filtering storehouse, the quantity of medium guide portion is two to the two sets up respectively at the upper and lower both ends of filtering the storehouse, two the medium guide portion is linked together with left and right filter chamber, the quantity of filtering part is two, and the two sets up respectively at the both ends of filtering the storehouse, two the filtering part is linked together with left and right filter chamber respectively, the circulation pipeline is Y shape pipeline to its branching both ends are linked together with the delivery outlet of two filtering parts respectively, the quantity of recoil cleaning part is two, and the two is linked together with the branching both ends of circulation pipeline respectively.
Further, the medium guide part comprises a Y-shaped guide pipe, the two bifurcated ends of the guide pipe are respectively communicated with the left filter cavity and the right filter cavity, and the two bifurcated ends of the guide pipe are respectively provided with a first opening and closing valve.
Further, the filter part comprises a fixed plate, a filter screen, a connection block and a CCD image sensor, a first outlet is formed in each of two ends of the filter bin, the fixed plate is mounted at the end of the filter bin and covers the first outlet, a second outlet is formed in the fixed plate, the filter screen can be detachably arranged in the second outlet, the connection block is mounted at one end, far away from the filter bin, of the fixed plate, a third outlet is formed in the connection block, the third outlet is right opposite to the second outlet, the circulation pipeline is communicated with the third outlet, the connection block is made of a transparent material, the CCD image sensor is mounted at the side of the connection block, the CCD image sensor is electrically connected with the controller, and the detection end of the CCD image sensor is right opposite to the second outlet.
Further, a fourth outlet is formed in the outer side of the fixing plate and communicated with the second outlet, a sealing plate capable of being pulled and moved is arranged in the fourth outlet, the filter screen is arranged in the second outlet in a pulling and moving mode and connected with the filter screen, a pulling handle is arranged on the outer side of the sealing plate, and the sealing plate is fixedly connected with the fixing plate through bolts.
Furthermore, a second opening and closing valve is respectively arranged at the two ends of the branch of the circulating pipeline and close to the overlapped area of the two ends.
Further, the backflushing cleaning portion comprises a backflushing water inlet pipe and a third opening and closing valve, the backflushing water inlet pipe is communicated with the circulating pipeline, and the third opening and closing valve is installed on the backflushing water inlet pipe.
The invention has the beneficial effects that: the feeding fan introduces external airflow into the air pipe, the inner wall of the air pipe forms an air channel for the flowing of the entered airflow, and the refrigerating end of the semiconductor refrigerator is arranged in the air channel, so that the airflow must pass through the refrigerating end of the semiconductor refrigerator when passing through the air channel to form a refrigerating effect; the refrigerated airflow enters the first cold medium channel and the second cold medium channel through the Y-shaped pipe respectively; in addition, the cooling liquid is filtered by a filtering mechanism to remove residues, and the filtered cooling liquid is introduced into one of the drainage parts through a circulating pipeline and enters the heat exchange channel through a plurality of drainage branch pipes on the drainage part; when the cooling liquid flows in the heat exchange channel, the cooling liquid realizes heat exchange through the cold sources in the first cold medium channel and the second cold medium channel, and further, the cold sources in the first cold medium channel and the second cold medium channel perform internal and external heat exchange on the cooling liquid in the heat exchange channel through the inner wall of the air duct and the outer wall of the hollow shaft respectively, so that the heat exchange effect is improved; in addition, because the inner surface of the helical blade of the heat exchange channel and the inner surface of the air-moving cylinder form, under the condition of adopting the short-distance air-moving cylinder, the time that the cooling liquid can flow in the heat exchange channel is increased, the heat exchange effect is further improved, and meanwhile, the occupied space of the air-moving cylinder is reduced; in addition, the circulation ports of the first cold medium channel and the second cold medium channel discharge the cold source subjected to heat exchange; meanwhile, because the numerical control machine tool is generally used for cutting and other works, very large scraps can be generated, and in order to further improve the filtering effect, two filtering parts are adopted, wherein one filtering part is in the filtering work, and the other filtering part is in a stop state; only when the filter part in the working state is blocked, the other filter part can start to work, namely one filter cavity is always idle in the left filter cavity and the right filter cavity; the specific process is as follows: one of the two medium guiding parts is communicated with a cooling liquid storage device, so that the medium guiding part introduces cooling liquid (unfiltered) into the filtering bin; two first opening and closing valves in the medium guide part are always in an opening state, and the other one is in a closing state; the valves in the opening state send cooling liquid into corresponding filter cavities, the filter screens in corresponding filter parts are used for filtering, the filter screens can be blocked quickly due to the fact that the residues are too much, the CCD image sensors corresponding to the filter screens can detect the filter screens at regular time in the process, when the filter screens are covered with a large amount of residues and are blocked, the residues are irradiated by the CCD image sensors and transmitted to the controller, and the controller analyzes the cooling liquid according to the fed-back image information; this approach is therefore only suitable for transparent cooling fluids; in addition, images of the filter screen in a normal state are manually input into the controller in advance, the CCD image sensor can acquire image information of the filter screen at regular time, and when the acquired image information is too different from the image information input in advance into the controller, the controller can indicate the first opening and closing valve corresponding to the filter screen to stop working; namely, the other first open-close valve of the medium guide part is opened to realize the function of filtering the cooling liquid without shutdown; the problem that cooling liquid cannot be supplied in time due to the blockage of the filter screen is prevented; meanwhile, a first opening and closing valve corresponding to the blocked filter cavity in the other medium guide part (serving as a medium guide part for removing waste residues) is opened, and simultaneously, flushing water is injected into a backflushing cleaning part corresponding to the blocked filter cavity to clean the blocked filter screen; finally, the cleaned waste water and waste residues flow out of the filter cavity through the opening of the first opening and closing valve in the medium guide part for removing the waste residues.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a plan sectional view of the wind tunnel of the present invention;
FIG. 6 is a schematic partial perspective view of the air-moving duct of the present invention;
FIG. 7 is a first perspective view of the filter mechanism of the present invention;
FIG. 8 is a schematic perspective view of a second embodiment of the filter mechanism of the present invention;
FIG. 9 is a third schematic perspective view of the filter mechanism of the present invention;
reference numerals: a semiconductor refrigerator 1.
The air feeding cylinder 2, the outer ring disc 211, the inner ring disc 212 and the first cold medium channel 213.
A hollow shaft 4 and a second coolant passage 411.
An air pipe 5, a Y-shaped pipe 511 and a feeding fan 512.
A guide tube 7, and a first open/close valve 711.
The device comprises a fixing plate 8, a filter screen 811, a connecting block 812, a third outlet 813, a CCD image sensor 814, a sealing plate 815 and a bolt 816.
Backflushing the water inlet pipe 9 and a third opening and closing valve 911.
A main drainage pipe 10 and a branch drainage pipe 10 a.
A circulation line 11 and a second opening/closing valve 11 a.
A first outlet pipe 12 and a second outlet pipe 13.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, the cooling liquid recycling device for a numerically-controlled machine tool includes a controller, a semiconductor refrigerator 1, a heat exchange channel 311, a first cooling medium channel 213, an air duct 5, a feeding fan 512, and a filtering mechanism, where the air duct 5 has an inlet and an outlet, an output end of the feeding fan 512 is communicated with the inlet, a refrigerating end of the semiconductor refrigerator 1 is disposed in the air duct 5, the outlet is provided with an air-moving duct 2, upper and lower ends of the air-moving duct 2 are closed, and an inner wall and an outer wall of the air-moving duct have a space therebetween, the space constitutes the first cooling medium channel 213, a helical blade 3 extending along an axial direction of the air-moving duct 2 is disposed between inner walls of the air-moving duct 2, a hollow shaft 4 is disposed at a center of the helical blade 3, and axes of the hollow shaft 4, the helical blade 3 and the air-moving duct 2 coincide, the outer surface of the spiral blade 3 is attached to the inner wall of the air-moving cylinder 2, the heat exchange channel 311 is formed between the inner surface of the spiral blade 3 and the inner wall of the air-moving cylinder 2, the heat exchange channel 311 is used for flowing cooling liquid, the inner wall of the hollow shaft 4 is used for forming a second cold medium channel 411, the outlet air is respectively communicated with one end of the first cold medium channel 213 and one end of the second cold medium channel 411 through a Y-shaped pipe 511, the other end of the first cold medium channel 213 and the other end of the second cold medium channel 411 are provided with circulation ports, two ends of the air-moving cylinder 2 are provided with flow guide portions, the output end of the filtering mechanism is communicated with one flow guide portion through a circulation pipeline 11, the other flow guide portion is used for discharging the cooling liquid out of the heat exchange channel 311, and the first cold medium channel 213, the second cold medium channel 411 and the heat exchange channel 311 are not communicated with each other.
The two ends of the air-moving cylinder 2 are respectively provided with a sealing disc, the sealing discs form a closed structure of the end part of the air-moving cylinder 2, each sealing disc is composed of an outer ring disc 211 and an inner ring disc 212 arranged at the inner ring of the outer ring disc 211, the outer ring disc 211 corresponds to the first cold medium channel 213 and is used for sealing the first cold medium channel 213, the inner ring disc 212 corresponds to the end part of the hollow shaft 4 and is used for sealing the second cold medium channel 411, the diameter of the inner ring disc 212 is larger than the outer diameter of the hollow shaft 4, the two ends of the hollow shaft 4 are respectively connected with the inner surfaces of the two inner ring discs 212 in a sealing way, and the outer ring disc 211 in each sealing disc is used for ensuring the sealing performance of the first cold medium channel 213; the inner disk 212 is used to ensure the tightness of the second cooling medium channel 411; the end of the hollow shaft 4 is in sealing contact with the lower surface of the inner disc 212, so that no fluid communication occurs between the second cold medium channel 411 and the heat exchange channel 311; ensuring that the media in the respective channels can flow safely.
The drainage part comprises a main drainage pipe 10 and a plurality of branch drainage pipes 10a which are equidistantly distributed around the circumference of the main drainage pipe 10, one end of each branch drainage pipe 10a is communicated with the main drainage pipe 10, the other end of each branch drainage pipe 10a penetrates through the inner circular disc 212 and is communicated with the heat exchange channel 311, all the branch drainage pipes 10a are positioned at the eccentric position of the inner circular disc 212, the two branched ends of the Y-shaped pipe 511 respectively penetrate through the outer surface of one end of the air walking cylinder 2 and one of the inner circular discs 212 and are communicated with the first cold medium channel 213 and the second cold medium channel 411, the outer surface of the other end of the air walking cylinder 2 is transversely inserted with a first outlet pipe 12, the other inner circular disc 212 is penetrated with a second outlet pipe 13 communicated with the hollow shaft 4, and the first outlet pipe 12 and the second outlet pipe 13 respectively form circulation ports of the first cold medium channel 213 and the second cold medium channel 411, the branch drainage pipe 10a is used for leading the fluid cooling liquid in the main drainage pipe 10 to enter the heat exchange channel 311; the purpose of using a plurality of branched drainage pipes 10a is: the inner disk 212 penetrating through the outer annular disk 211 is communicated with the heat exchange channel 311; in addition, since the branched drainage pipe 10a is located at the eccentric position of the inner circular disk 212, the through connection of the second outlet pipe 13 and the Y-shaped pipe 511 to the inner circular disk 212 is not affected; the phase change is said to be not to affect the communication between the second coolant passage 411 and the Y-shaped pipe 511 and the second outlet pipe 13.
The flowing directions of the media in the first cold medium channel 213 and the second cold medium channel 411 are opposite to the flowing direction of the fluid in the heat exchange channel 311, and the direction of the fluid in the heat exchange channel 311 is always opposite to the flowing directions of the media in the first cold medium channel 213 and the second cold medium channel 411, so that the media flow oppositely, and the heat exchange effect is favorably improved; in addition, the stroke is enlarged due to the spiral blades 3 in the heat exchange channel 311, so that the time required for the cooling liquid to flow in the heat exchange channel 311 is increased on the premise of adopting the short-distance air cylinder 2, and the heat exchange is facilitated.
The filtering mechanism comprises a filtering bin 6, medium guiding parts, a filtering part and a back flushing cleaning part, wherein the filtering bin 6 is internally divided into a left filtering cavity 611 and a right filtering cavity 611 by a partition plate, the number of the medium guiding parts is two, and the two are respectively arranged at the upper end and the lower end of the filter bin 6, the two medium guide parts are communicated with the left filter cavity 611 and the right filter cavity 611, the number of the filter parts is two, and the two are respectively arranged at the two ends of the filtering bin 6, the two filtering parts are respectively communicated with the left filtering cavity 611 and the right filtering cavity 611, the circulating pipeline 11 is a Y-shaped pipeline 511, and the two branched ends of the back-flushing cleaning part are respectively communicated with the output ports of the two filtering parts, the number of the back-flushing cleaning parts is two, and the two are respectively communicated with two ends of the branch of the circulating pipeline 11, and the two filtering parts are arranged for the purpose that one filtering part is in the filtering work and the other filtering part is in the stop state; only when the filter part in the working state is blocked, the other filter part can start to work, namely, one filter cavity is always idle in the left and right filter cavities 611; one of the two medium guiding parts is communicated with a cooling liquid storage device, and under the normal condition that the recovered cooling liquid is respectively injected into the left filtering cavity 611 and the right filtering cavity 611, only one filtering cavity in the left filtering cavity 611 and the right filtering cavity 611 has the cooling liquid flowing, and the other one is stopped; the other medium guide part has the functions of: when the filter portion in the working filter chamber is clogged, the waste residues on the filter net 811 are cleaned by the corresponding back-flushing cleaning portion, and the waste residues are removed by the medium guide portion.
The medium guide part comprises a Y-shaped guide pipe 7, the two branched ends of the guide pipe 7 are respectively communicated with the left filter cavity 611 and the right filter cavity 611, the two branched ends of the guide pipe 7 are respectively provided with a first opening and closing valve 711, one of the two medium guide parts is always in an opening state, and the other medium guide part is always in a closing state; namely, only one of the two works all the time; the arrangement is such that both filter sections are recycled; only when one filter part is blocked, the first opening and closing valve 711 of the corresponding blocked filter part stops injecting the cooling liquid into the corresponding filter cavity; and the other first on-off valve 711 is opened to inject the cooling liquid into the other filtering cavity; as described above, the two first on/off valves 711 in the other medium guide section also work in sequence to: when the filter screen 811 in a certain filter chamber is blocked, the first open/close valve 711 corresponding to the blocked filter screen 811 is opened, if the filter screen 811 is normal, the filter screen is not blocked; the corresponding first opening and closing valve 711 is closed.
The filtering part comprises a fixing plate 8, a filter screen 811, a connecting block 812 and a CCD image sensor 814, two ends of the filtering bin 6 are respectively provided with a first outlet, the fixing plate 8 is arranged at the end part of the filtering bin 6, and covers the first outlet, a second outlet is opened on the fixing plate 8, the filter net 811 can be detachably arranged in the second outlet, the connecting block 812 is installed at one end of the fixing plate 8 far away from the filter bin 6, and a third outlet 813 is arranged in the connecting block 812, the third outlet 813 is opposite to the second outlet, the circulation pipeline 11 is communicated with the third outlet 813, the connecting block 812 is made of transparent material, the CCD image sensor 814 is installed at the side of the joint block 812, the CCD image sensor 814 is electrically connected with the controller, the detection end of the filter screen 811 is opposite to the second outlet, and the filter screen is used for filtering solid residues in the cooling liquid; because the connecting block 812 is made of transparent material and the detecting end of the CCD image sensor 814 is opposite to the second outlet, in this way, the detecting end of the CCD image sensor 814 actually corresponds to the filter net 811, and when the filter net 811 is covered with a large amount of residue and causes blockage, the residue is irradiated by the CCD image sensor 814 and transmitted to the controller, and is analyzed by the controller; this approach is therefore only suitable for transparent cooling fluids; an image in a normal state of the filter screen 811 can be input into the controller in advance, the CCD image sensor 814 can collect image information of the filter screen 811 at regular time, and when the difference between the collected image information and the image information input into the controller in advance is too large, the controller can instruct the first opening/closing valve 711 corresponding to the filter screen 811 to stop working; that is, the other first opening and closing valve 711 is opened to perform the function of filtering the cooling liquid without shutdown; the coolant cannot be supplied immediately due to the blockage of the filter screen 811; the coolant filtered by the filter net 811 reaches the third outlet 813 through the second outlet, flows into the circulation line 11 through the third outlet 813, and can flow into the drain connected to the circulation line 11 through the circulation line 11; the circulation pipeline 11 is communicated with a main drainage pipe 10 in the drainage part.
A fourth outlet is formed in the outer side of the fixed plate 8, the fourth outlet is communicated with the second outlet, a sealing plate 815 capable of being pulled and moved is arranged in the fourth outlet, the filter net 811 is arranged in the second outlet in a pulling and moving manner, the sealing plate 815 is connected with the filter net 811, a pulling handle is arranged on the outer side of the sealing plate 815, the sealing plate 815 is fixedly connected with the fixed plate 8 through a bolt 816, and the filter net 811 is used for too long time and has too much inevitable stubborn residues, so that the cleaning effect of a backwashing part is poor, the sealing plate 815 can be pulled and pulled by removing the bolt 816, and the purpose is to pull out the filter net 811 together, so that the filter net 811 can be conveniently and manually cleaned; to ensure the cleanliness of the filter net 811.
Two second opening and closing valves 11a are respectively arranged at two branched ends of the circulation pipeline 11 and near the overlapped area of the two branched ends, and the second opening and closing valves 11a prevent the fluid in the two branched ends of the circulation pipeline 11 from mixing.
The backflushing cleaning part comprises a backflushing water inlet pipe 9 and a third opening and closing valve 911, the backflushing water inlet pipe 9 is communicated with the circulating pipeline 11, the third opening and closing valve 911 is installed on the backflushing water inlet pipe 9, and the third opening and closing valve 911 prevents unnecessary communication between clear water in the backflushing water inlet pipe 9 and cooling liquid in the circulating pipeline 11 when the backflushing cleaning is not needed; the third opening/closing valve 911 is opened when the corresponding filter net 811 is clogged, and water is injected into the circulation line 11 through the backflushing water inlet pipe 9, so that the clogged filter net 811 is cleaned.
The working principle is as follows: the feed fan 512 introduces external airflow into the air pipe 5, the inner wall of the air pipe 5 forms an air channel for the flow of the entered airflow, and the refrigeration end of the semiconductor refrigerator 1 is arranged in the air channel, so that the airflow tends to pass through the refrigeration end of the semiconductor refrigerator 1 when passing through the air channel, and the refrigeration effect is formed; the refrigerated air flow enters the first cold medium channel 213 and the second cold medium channel 411 through the Y-shaped pipe 511 respectively; in addition, the cooling liquid is filtered by the filtering mechanism to remove residues, and the filtered cooling liquid is introduced into one of the drainage parts through the circulating pipeline 11 and enters the heat exchange channel 311 through a plurality of branch drainage pipes 10a on the drainage part; when the cooling liquid flows in the heat exchange channel 311, the cooling liquid exchanges heat through the cold sources in the first cold medium channel 213 and the second cold medium channel 411, that is, the cold sources in the first cold medium channel 213 and the second cold medium channel 411 respectively exchange heat between the inside and the outside of the cooling liquid in the heat exchange channel 311 through the inner wall of the wind-going barrel 2 and the outer wall of the hollow shaft 4, so as to improve the heat exchange effect; in addition, because the inner surface of the helical blade 3 of the heat exchange channel 311 and the inner surface of the air-moving cylinder 2 form, under the condition of adopting the short-distance air-moving cylinder 2, the time that the cooling liquid can flow in the heat exchange channel 311 is increased, the heat exchange effect is further improved, and meanwhile, the occupied space of the air-moving cylinder 2 is reduced; in addition, the circulation ports of the first cold medium channel 213 and the second cold medium channel 411 discharge the cold sources subjected to heat exchange; meanwhile, because the numerical control machine tool is generally used for cutting and other works, very large scraps can be generated, and in order to further improve the filtering effect, two filtering parts are adopted, wherein one filtering part is in the filtering work, and the other filtering part is in a stop state; only when the filter part in the working state is blocked, the other filter part can start to work, namely, one filter cavity is always idle in the left and right filter cavities 611; the specific process is as follows: one of the two medium guiding parts is communicated with a cooling liquid storage device, so that the medium guiding part introduces the cooling liquid into the filter bin 6 without filtering; two first open/close valves 711 in the medium guide section, one of which is always in an open state and the other of which is always in a closed state; the valve in the open state sends the cooling liquid into the corresponding filter cavity, the filter 811 in the corresponding filter part performs filtering, and the filter 811 may be blocked quickly due to the excessive residues, at this time, the CCD image sensor 814 corresponding to the filter 811 detects the filter 811 regularly, and when the filter 811 is blocked due to the large amount of residues, the CCD image sensor 814 irradiates and transmits the residues to the controller, and the controller performs analysis according to the feedback image information; this approach is therefore only suitable for transparent cooling fluids; in addition, images in a normal state of the filter screen 811 are manually input into the controller in advance, the CCD image sensor 814 acquires image information of the filter screen 811 at regular time, and when the acquired image information is too different from the image information input into the controller in advance, the controller instructs the first opening/closing valve 711 corresponding to the filter screen 811 to stop working; that is, the other first open/close valve 711 of the medium guide is opened to perform the function of filtering the coolant without shutdown; the coolant cannot be supplied in time due to the blockage of the filter screen 811; meanwhile, the first opening and closing valve 711 corresponding to the blocked filter chamber in the other medium guide part used as the medium guide part for removing the waste residues is opened, and simultaneously, the backflushing cleaning part corresponding to the blocked filter chamber is injected with cleaning water to clean the blocked filter screen 811; the finally cleaned waste water and waste slag flow out of the filter chamber through the opening of the first on-off valve 711 in the medium guide for removing waste slag.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (10)
1. The utility model provides a digit control machine tool coolant liquid cyclic utilization device which characterized in that: the semiconductor refrigerator comprises a controller, a semiconductor refrigerator (1), a heat exchange channel (311), a first cold medium channel (213), an air pipe (5), a feeding fan (512) and a filtering mechanism, wherein the air pipe (5) is provided with an inlet and an air outlet, the output end of the feeding fan (512) is communicated with the inlet, the refrigerating end of the semiconductor refrigerator (1) is arranged in the air pipe (5), the air outlet is provided with an air walking cylinder (2), the upper end and the lower end of the air walking cylinder (2) are of a closed structure, the inner wall and the outer wall of the air walking cylinder are provided with a space which forms the first cold medium channel (213), helical blades (3) extending along the axial direction of the inner walls of the air walking cylinder (2) are arranged between the inner walls of the air walking cylinder (2), the center of the helical blades (3) is provided with a hollow shaft (4), and the axes of the helical blades (3) and the air walking cylinder (2) are, the outer surface of the spiral blade (3) is attached to the inner wall of the air-moving cylinder (2), the inner surface of the spiral blade (3) and the inner wall of the air-moving cylinder (2) form the heat exchange channel (311), the heat exchange channel (311) supplies cooling liquid to flow, the inner wall of the hollow shaft (4) forms the second cooling medium channel (411), outlet air is respectively communicated with one ends of the first cooling medium channel (213) and the second cooling medium channel (411) through a Y-shaped pipe (511), the other ends of the first cooling medium channel (213) and the second cooling medium channel (411) are provided with circulation ports, two ends of the air-moving cylinder (2) are provided with drainage parts, the output end of the filtering mechanism is communicated with one of the drainage parts through a circulation pipeline (11), the other drainage part is used for discharging cooling liquid out of the heat exchange channel (311), the first cooling medium channel (213) is connected with the second cooling medium channel (311), The second cold medium channel (411) and the heat exchange channel (311) are not communicated with each other.
2. The cooling liquid recycling device of the numerical control machine tool according to claim 1, characterized in that: the two ends of the air-moving cylinder (2) are respectively provided with a sealing disc, the sealing discs form a closed structure of the end part of the air-moving cylinder (2), each sealing disc is composed of an outer ring disc (211) and an inner ring disc (212) arranged at the inner ring of the outer ring disc (211), the outer ring disc (211) corresponds to the first cold medium channel (213) and is used for sealing the first cold medium channel (213), the inner ring disc (212) corresponds to the end part of the hollow shaft (4) and is used for sealing the second cold medium channel (411), the diameter of the inner ring disc (212) is larger than the outer diameter of the hollow shaft (4), and the two ends of the hollow shaft (4) are respectively connected with the inner surfaces of the two inner ring discs (212) in a sealing mode.
3. The cooling liquid recycling device of the numerical control machine tool according to claim 2, characterized in that: the drainage part comprises a drainage main pipe (10) and a plurality of drainage branch pipes (10a) which are distributed around the circumference of the drainage main pipe (10) at equal intervals, one end of each drainage branch pipe (10a) is communicated with the drainage main pipe (10), the other end of each drainage branch pipe (10a) penetrates through the inner disc (212) and is communicated with the heat exchange channel (311), all the drainage branch pipes (10a) are positioned at the eccentric position of the inner disc (212), the two branched ends of the Y-shaped pipe (511) respectively penetrate through the outer surface of one end of the air-walking cylinder (2) and one of the inner discs (212) and are communicated with the first cold medium channel (213) and the second cold medium channel (411), the outer surface of the other end of the air-walking cylinder (2) is transversely inserted with a first outlet pipe (12), and the second outlet pipe (13) communicated with the hollow shaft (4) penetrates through the other inner disc (212), the first outlet pipe (12) and the second outlet pipe (13) form circulation ports of the first refrigerant channel (213) and the second refrigerant channel (411), respectively.
4. The cooling liquid recycling device of the numerical control machine tool according to claim 1, characterized in that: the flowing direction of the media in the first cold medium channel (213) and the second cold medium channel (411) is opposite to the flowing direction of the fluid in the heat exchange channel (311).
5. The cooling liquid recycling device of the numerical control machine tool according to claim 1, characterized in that: filtering mechanism separates into left and right filter chamber (611) through the baffle in filtering storehouse (6), the quantity of medium guide portion is two to the two sets up respectively at the upper and lower both ends of filtering storehouse (6), two medium guide portion is linked together with left and right filter chamber (611), the quantity of filter portion is two, and the two sets up respectively at the both ends of filtering storehouse (6), two the filter portion is linked together with left and right filter chamber (611) respectively, circulation pipeline (11) are Y venturi tube (511) way to its branching both ends are linked together with the delivery outlet of two filter portions respectively, the quantity of recoil cleaning portion is two to the two is linked together with the branching both ends of circulation pipeline (11) respectively.
6. The cooling liquid recycling device of the numerical control machine tool according to claim 5, wherein: the medium guiding part comprises a Y-shaped guiding pipe (7), the two forked ends of the guiding pipe (7) are respectively communicated with the left filtering cavity (611) and the right filtering cavity (611), and the two forked ends of the guiding pipe (7) are respectively provided with a first opening and closing valve (711).
7. The cooling liquid recycling device of the numerical control machine tool according to claim 5, wherein: the filter part comprises a fixing plate (8), a filter screen (811), a connecting block (812) and a CCD image sensor (814), a first outlet is respectively arranged at two ends of the filter bin (6), the fixing plate (8) is arranged at the end part of the filter bin (6) and covers the first outlet, a second outlet is arranged on the fixing plate (8), the filter screen (811) can be detachably arranged in the second outlet, the connecting block (812) is arranged at one end of the fixing plate (8) far away from the filter bin (6), a third outlet (813) is arranged in the connecting block (812), the third outlet (813) is just opposite to the second outlet, the circulating pipeline (11) is communicated with the third outlet (813), the connecting block (812) is made of a transparent material, and the CCD image sensor (814) is arranged at the side part of the connecting block (812), the CCD image sensor (814) is electrically connected with the controller, and the detection end of the CCD image sensor is opposite to the second outlet.
8. The cooling liquid recycling device of the numerical control machine tool according to claim 7, wherein: the outer side of the fixing plate (8) is provided with a fourth outlet, the fourth outlet is communicated with the second outlet, a sealing plate (815) capable of being pulled and moved is arranged in the fourth outlet, the filter screen (811) is movably arranged in the second outlet, the sealing plate (815) is connected with the filter screen (811), a pulling handle is arranged on the outer side of the sealing plate (815), and the sealing plate (815) is fixedly connected with the fixing plate (8) through bolts (816).
9. The cooling liquid recycling device of the numerical control machine tool according to claim 5, wherein: and a second opening and closing valve (11a) is respectively arranged at the two ends of the branch of the circulating pipeline (11) and close to the overlapped area of the two ends.
10. The cooling liquid recycling device of the numerical control machine tool according to claim 5, wherein: the backflushing cleaning part comprises a backflushing water inlet pipe (9) and a third opening and closing valve (911), the backflushing water inlet pipe (9) is communicated with a circulating pipeline (11), and the third opening and closing valve (911) is installed on the backflushing water inlet pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157304.8A CN110883606A (en) | 2019-11-22 | 2019-11-22 | Digit control machine tool coolant liquid cyclic utilization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157304.8A CN110883606A (en) | 2019-11-22 | 2019-11-22 | Digit control machine tool coolant liquid cyclic utilization device |
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| CN110883606A true CN110883606A (en) | 2020-03-17 |
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| CN201911157304.8A Pending CN110883606A (en) | 2019-11-22 | 2019-11-22 | Digit control machine tool coolant liquid cyclic utilization device |
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Application publication date: 20200317 |
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