Cooling liquid refrigerating, filtering and recycling device and machining center thereof

Abstract

The invention relates to the technical field of machining, and particularly discloses a cooling liquid refrigerating, filtering and recycling device and a machining center thereof. The upper end of the fixed base is detachably and fixedly connected with a storage pipe; a limiting groove is formed in the storage pipe; a filtering barrel is rotationally inserted into the limiting groove; the motor drives the center shaft and the filter barrel to rotate, centrifugal force is utilized to conduct centrifugal separation on mixed cooling liquid, particles such as cuttings enter the collecting groove along the filter holes to be collected, and therefore the cooling liquid which is filtered completely is contained in the filter barrel, and then under the refrigeration effect of the semiconductor refrigeration piece, the cooling liquid is cooled to the room temperature. The cooling liquid in the collecting tank is cooled, so that the sucked and circulated cooling liquid is kept at a low temperature, the low-temperature cooling liquid can be used in the long-time continuous cutting machining of the machining center, and the problem that the cooling effect of an existing machining center is reduced due to the fact that the temperature of the cooling liquid rises for a long time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a cooling liquid refrigeration filtering and recovery device and a processing center thereof. Background Art

[0002] Coolant (sometimes also called cutting fluid) is one of the very important auxiliary materials. Its main function is to reduce the temperature between the tool and the workpiece, reduce friction, and help extend the tool life while improving machining accuracy and surface quality during metal processing operations such as cutting, drilling, and grinding.

[0003] The Chinese invention patent with publication number CN114083342A disclosed a coolant recovery CNC machine tool on 2022-02-25, which includes a processing chamber and a base. The bottom wall of the inner cavity of the processing chamber is provided with a discharge port for discharging coolant and debris. At least three mutually parallel filter elements are rotatably penetrated in the base. A blanking chute inclined toward the ground is provided on one side of the base. Multiple filter elements are arranged in a direction close to the blanking chute and the height gradually decreases. The highest filter element is located directly below the discharge port. A drive assembly for driving the filter element to rotate is also provided on the base. This application has the advantage of saving coolant.

[0004] However, the above-mentioned disclosed scheme has the following shortcomings: the filtering device of the prior art does not have a cooling function, so even if the filtered cooling oil is recovered and reused, the temperature will increase, resulting in a decrease in the cooling and lubricating effects of the coolant. Therefore, the coolant needs to be cooled to achieve a good cooling effect. Summary of the invention

[0005] The purpose of the present invention is to solve the above technical problems and provide a coolant refrigeration filtering and recovery device and a processing center thereof.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The technical solution adopted by the present invention to solve its technical problems is: a coolant refrigeration filtering and recovery device and its processing center described in the present invention include a fixed base; a storage tube is detachably fixedly connected to the upper end of the fixed base; a limiting groove is provided in the storage tube; a filter barrel is rotatably inserted in the limiting groove; a collecting groove is provided in the storage tube; a plurality of filter holes are provided in the collecting groove connected to the filter barrel and the limiting groove; a sealing cover is detachably fixedly connected to the upper end of the storage tube; an injection flange and a discharge flange are connected and fixedly connected to the sealing cover; a central axis is fixedly connected to the lower end of the storage tube; a motor is detachably fixedly connected to the lower end of the central axis; and a plurality of semiconductor refrigeration plates are fixedly connected to the lower end of the storage tube.

[0008] Furthermore, a heat dissipation pipe is sleeved on the storage pipe; and a plurality of heat dissipation fins are evenly distributed and fixed on the outer surface of the heat dissipation pipe.

[0009] Furthermore, the fixed base is symmetrically provided with air inlet and outlet holes; an annular tube is inserted into the air inlet and outlet holes; a plurality of vertical holes are evenly distributed on the upper end of the annular tube; an air pump is connected and fixedly connected to the annular tube; and the air pump is fixedly connected to the fixed base.

[0010] Furthermore, a withdrawal pipe is detachably inserted in the discharge flange; the upper end of the withdrawal pipe is connected and fixedly connected to a suction pump; and the output end of the suction pump is connected and fixedly connected to the discharge pipe.

[0011] Furthermore, the lower end of the storage tube is connected to the collection tank opening and is threadedly sealed with a discharge cover.

[0012] Furthermore, a sealing sleeve is fixedly connected to the receiving tube corresponding to the central axis.

[0013] Furthermore, the storage tube is made of transparent plastic.

[0014] A machining center comprises any one of the coolant refrigeration filtering and recovery devices described above.

[0015] The present invention provides a cooling liquid refrigeration filtering and recovery device and a processing center thereof, which have the following beneficial effects:

[0016] 1. The present invention can collect the coolant discharged from the machining center into the filter barrel through the injection flange, and then insert a pipe into the discharge flange to suck and filter the cooled coolant, and then drive the central axis and the filter barrel to rotate through the motor, and use centrifugal force to centrifugally separate the mixed coolant, so that the particles such as chips enter the collection tank through the filter holes for collection, so that the filter barrel contains the filtered coolant, and then the coolant in the collection tank is cooled down under the refrigeration effect of the semiconductor refrigeration plate, so that the coolant sucked for circulation is kept at a low temperature, so that the machining center can have low-temperature coolant for use in long-term continuous chip processing, which solves the problem of reduced cooling effect caused by long-term coolant heating in the existing machining center;

[0017] 2. The present invention conducts the heat in the storage tube to the heat pipe through the large-area contact between the heat dissipation tube and the outer surface of the storage tube, and then passively dissipates the heat through the contact between multiple heat sinks and the atmosphere. Therefore, effective passive heat dissipation can be performed even when the indoor temperature is low, solving the problem of low passive heat dissipation efficiency of the existing filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings;

[0019] Figure 1 It is a first isometric structural schematic diagram of a coolant refrigeration filtering and recycling device;

[0020] Figure 2 It is a second isometric structural schematic diagram of a coolant refrigeration filtering and recycling device;

[0021] Figure 3 It is a third axonometric structural schematic diagram of a coolant refrigeration filtering and recycling device;

[0022] Figure 4 It is a schematic diagram of the fourth axonometric structure of a coolant refrigeration filtering and recovery device.

[0023] Explanation of the numbers in the figure: 1. Fixed base; 2. Storage tube; 3. Limiting groove; 4. Filter barrel; 5. Filter hole; 6. Sealing cover; 7. Injection flange; 8. Discharge flange; 9. Extraction pipe; 10. Suction pump; 11. Discharge pipe; 12. Center axis; 13. Motor; 14. Air pump; 15. Annular pipe; 16. Vertical hole; 17. Inlet and outlet holes; 18. Discharge cover; 19. Heat dissipation pipe; 20. Heat sink; 21. Sealing sleeve; 22. Semiconductor cooling plate; 23. Collection tank. DETAILED DESCRIPTION

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0027] See also Figure 1-4As shown, a cooling liquid refrigeration filtering and recovery device comprises a fixed base 1; a storage tube 2 is detachably fixedly connected to the upper end of the fixed base 1; a limiting groove 3 is provided in the storage tube 2; a filter barrel 4 is rotatably inserted in the limiting groove 3; a collecting groove 23 is provided in the storage tube 2; a plurality of filter holes 5 are provided in the collecting groove 23 connected to the filter barrel 4 and the limiting groove 3; a sealing cover 6 is detachably fixedly connected to the upper end of the storage tube 2; an injection flange 7 and a discharge flange 8 are connected and fixedly connected to the sealing cover 6; a central shaft 12 is fixedly connected to the lower end of the storage tube 2; a motor 13 is detachably fixedly connected to the lower end of the central shaft 12; a plurality of semiconductor cooling plates 22 are fixedly connected to the lower end of the storage tube 2; when working, the machining center can be discharged through the injection flange 7 The coolant is collected in the filter barrel 4, and then a pipe is inserted into the discharge flange 8 to suck and filter the cooled coolant. The central shaft 12 and the filter barrel 4 are driven by the motor 13 to rotate, and the mixed coolant is centrifugally separated by centrifugal force, so that particles such as chips enter the collection tank 23 along the filter hole 5 for collection, so that the filter barrel 4 contains filtered coolant. Then, under the refrigeration effect of the semiconductor refrigeration plate 22, the coolant in the collection tank 23 is cooled, so that the coolant sucked for circulation is kept at a low temperature, so that the machining center can have low-temperature coolant for use during long-term continuous chip processing, which solves the problem of reduced cooling effect caused by long-term coolant heating in the existing machining center.

[0028] A heat dissipation pipe 19 is sleeved on the storage tube 2; a plurality of heat dissipation fins 20 are evenly distributed and fixedly connected to the outer surface of the heat dissipation pipe 19; during operation, the heat inside the storage tube 2 can be transferred to the heat dissipation pipe 19 through the large-area contact between the heat dissipation pipe 19 and the outer surface of the storage tube 2, and then the heat is passively dissipated through the contact between the plurality of heat dissipation fins 20 and the atmosphere, so that effective passive heat dissipation can be performed even when the indoor temperature is low, thereby solving the problem of low passive heat dissipation efficiency of the existing filtering device.

[0029] The fixed base 1 is symmetrically provided with air inlet and outlet holes 17; the annular tube 15 is inserted into the air inlet and outlet holes 17; the upper end of the annular tube 15 is evenly provided with a plurality of vertical holes 16; the annular tube 15 is connected and fixedly connected with an air pump 14; the air pump 14 is fixedly connected to the fixed base 1; when working, the air pump 14 can operate through the air inlet and outlet holes 17 to suck the air outside the fixed base 1, and then transport the atmospheric air to the heat sink 20 and the heat pipe 19, thereby taking away the heat on the heat sink 20 and the heat pipe 19, thereby accelerating the heat reduction of the coolant, thereby accelerating the cooling speed of the coolant, and the heat sink 20 and the heat pipe 19 can realize the functions of active and passive heat dissipation, thereby effectively utilizing the atmosphere for cooling, making the energy consumption small, and can be used for a long time, solving the problem of low refrigeration recovery efficiency of the existing coolant.

[0030] An extraction pipe 9 is detachably inserted in the discharge flange 8; the upper end of the extraction pipe 9 is connected and fixedly connected with a suction pump 10; the output end of the suction pump 10 is connected and fixedly connected with a discharge pipe 11; when working, the suction pump 10 is powered on to operate, so that the filtered and cooled coolant at the lower end of the extraction pipe 9 can be sucked and discharged into the coolant tank of the machining center through the discharge pipe 11, thereby completing the recycling, so that the machining center can continuously use the coolant for machining, which solves the problem that the existing machining center coolant has a small volume and cannot achieve cooling recycling.

[0031] The lower end of the storage tube 2 is connected to the collection tank 23 and is threadedly sealed with a discharge cover 18; during operation, the particulate matter stored in the collection tank 23 can be discharged regularly through the discharge cover 18, thereby not affecting the filtration and cooling of new coolant, and not affecting the low-temperature transfer of cooling, thereby solving the problem that the existing equipment cannot quickly handle a large amount of cooling for filtration and cooling.

[0032] A sealing sleeve 21 is fixedly connected to the receiving tube 2 corresponding to the central axis 12 ; during operation, the sealing sleeve 21 allows the central axis 12 to maintain a seal with the receiving tube 2 during rotational motion, so that the coolant can be stored in the collecting tank 23 .

[0033] The storage tube 2 is made of transparent plastic. When working, the filtered particles in the storage tube 2 can be directly observed visually through the storage tube 2 made of transparent plastic, so that it can be known when the coolant that has been cooled is sucked and filtered through the extraction tube 9, and it can also be known that the accumulated particles have reached a certain height and can be discharged through the discharge cover 18, so that the filtering and cooling of the coolant will not be affected.

[0034] A machining center comprises any one of the coolant refrigeration filtering and recovery devices described above.

[0035] By adopting the above scheme, when the present invention is in use, the coolant discharged from the machining center can be collected into the filter barrel 4 through the injection flange 7, and then the pipe is inserted into the discharge flange 8 to suck and filter the cooled coolant, and then the central shaft 12 and the filter barrel 4 are driven to rotate by the motor 13, and the mixed coolant is centrifugally separated by centrifugal force, so that the particles such as chips are collected in the collection tank 23 along the filter hole 5, so that the filter barrel 4 contains the filtered coolant, and then the coolant in the collection tank 23 is cooled under the refrigeration effect of the semiconductor refrigeration sheet 22, so that the coolant sucked for circulation is kept at a low temperature, so that the machining center can have a long-term continuous chip processing. The use of low-temperature coolant solves the problem of reduced cooling effect caused by long-term coolant heating in the existing machining center; the heat pipe 19 is in large-area contact with the outer surface of the storage tube 2, so that the heat in the storage tube 2 can be transferred to the heat pipe 19, and then passive heat dissipation is performed through the contact between the multiple heat sinks 20 and the atmosphere, so that effective passive heat dissipation can be performed when the indoor temperature is low, solving the problem of low passive heat dissipation efficiency of the existing filtering device; the air pump 14 is operated through the air inlet and outlet holes 17 to suck the air outside the fixed base 1, and then the atmospheric air is transported to the heat sink 20 and the heat pipe 19, thereby taking away the heat on the heat sink 20 and the heat pipe 19, so as to accelerate the heat reduction of the coolant. The cooling speed of the cooling liquid is low, and the active and passive heat dissipation functions can be realized by cooperating with the heat sink 20 and the heat pipe 19, so that the atmosphere can be effectively used for cooling, so that the energy consumption is small and it can be used for a long time, solving the problem of low cooling recovery efficiency of the existing cooling liquid; by energizing the suction pump 10, the filtered and cooled cooling liquid at the lower end of the extraction pipe 9 can be sucked and discharged to the cooling liquid tank of the machining center through the discharge pipe 11, so as to complete the recycling, so that the machining center can continue to use the cooling liquid for processing, solving the problem that the existing machining center has a small cooling liquid volume and cannot achieve cooling recycling; through the discharge cover 18, the particulate matter stored in the collection tank 23 can be Regular discharge will not affect the filtration and cooling of new coolant, and will not affect the low-temperature transfer of cooling, which solves the problem that existing equipment cannot quickly handle a large amount of cooling for filtration and cooling; the sealing sleeve 21 allows the central shaft 12 to maintain a seal with the storage tube 2 during rotation, so that the coolant can be stored in the collection tank 23; the storage tube 2 is made of transparent plastic, so that the filtered particles in the storage tube 2 can be directly observed visually, so that it can be understood when the cooled coolant is sucked and filtered through the extraction tube 9, and it can also be known to what height the accumulated particles reach and can be discharged through the discharge cover 18, so that the filtration and cooling of the coolant are not affected.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A coolant refrigeration filtering and recovery device and a processing center thereof, characterized in that; The invention comprises a fixed base (1); a storage tube (2) is detachably fixedly connected to the upper end of the fixed base (1); a limiting groove (3) is provided in the storage tube (2); a filter barrel (4) is rotatably inserted in the limiting groove (3); a collecting groove (23) is provided in the storage tube (2); a plurality of filter holes (5) are provided in the collecting groove (23) connected to the filter barrel (4) and the limiting groove (3); a sealing cover (6) is detachably fixedly connected to the upper end of the storage tube (2); an injection flange (7) and a discharge flange (8) are connected and fixedly connected to the sealing cover (6); a central axis (12) is fixedly connected to the lower end of the storage tube (2); a motor (13) is detachably fixedly connected to the lower end of the central axis (12); and a plurality of semiconductor cooling plates (22) are fixedly connected to the lower end of the storage tube (2).

2. The coolant refrigeration filtering and recovery device and the processing center thereof according to claim 1, characterized in that: A heat dissipation pipe (19) is sleeved on the storage pipe (2); and a plurality of heat dissipation fins (20) are evenly distributed and fixedly connected on the outer surface of the heat dissipation pipe (19).

3. The coolant refrigeration filtering and recovery device and the processing center thereof according to claim 2 are characterized in that: The fixed base (1) is symmetrically provided with air inlet and outlet holes (17); an annular tube (15) is inserted into the air inlet and outlet holes (17); a plurality of vertical holes (16) are evenly distributed on the upper end of the annular tube (15); an air pump (14) is connected and fixedly connected to the annular tube (15); and the air pump (14) is fixedly connected to the fixed base (1).

4. The coolant refrigeration filtering and recovery device and the processing center thereof according to claim 3, characterized in that: An extraction pipe (9) is detachably inserted into the discharge flange (8); the upper end of the extraction pipe (9) is connected and fixedly connected to a suction pump (10); and the output end of the suction pump (10) is connected and fixedly connected to a discharge pipe (11).

5. The coolant refrigeration filtering and recovery device and the processing center thereof according to claim 4, characterized in that: The lower end of the storage tube (2) is connected to the opening of the collection tank (23) and is threadedly sealed to be connected to a discharge cover (18).

6. The coolant refrigeration filtering and recovery device and the processing center thereof according to claim 5, characterized in that: A sealing sleeve (21) is fixedly connected to the storage tube (2) corresponding to the central axis (12).

7. The coolant refrigeration filtering and recovery device and the processing center thereof according to claim 6, characterized in that: The storage tube (2) is made of transparent plastic.

8. A machining center, characterized in that: The invention comprises the cooling liquid refrigeration filtering and recovery device as described in any one of claims 1 to 6.

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