Cooling liquid recovery system for high-speed machining center

Abstract

The utility model discloses a cooling liquid recovery system for a high-speed machining center, which comprises a liquid outlet pipe communicated with a liquid outlet of an external liquid collecting tray used for collecting cooling liquid, the liquid outlet pipe is communicated with a liquid outlet connecting cylinder, and the diameter of the liquid outlet connecting cylinder is larger than that of the liquid outlet pipe. A liquid outlet inclined pipe communicating with the liquid outlet pipe is arranged in the liquid outlet connecting cylinder, an outlet of the liquid outlet inclined pipe is formed in the position away from the circle center of the liquid outlet pipe, and a rotating cylinder is rotationally arranged on the lower side of the liquid outlet connecting cylinder. A plurality of filter pipes are arranged in the rotating cylinder to filter cooling liquid and remove impurities, chippings and the like in the cooling liquid, when the filter pipes need to be cleaned or replaced, the rotating cylinder can be rotated by a certain angle, the other filter pipe moves to the position between the liquid outlet inclined pipe and the liquid return pipe, the cooling liquid continues to be filtered, and therefore the cooling liquid can be cleaned or replaced conveniently. The filter pipe can be cleaned and replaced under the condition that a machining center or a cooling liquid recovery system is not shut down, the normal machining process is not affected, and the working efficiency is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining equipment technical field, concretely is a cooling liquid recovery system for high speed machining center. BACKGROUND

[0002] In the modern mechanical processing field, high speed machining center is widely used in cutting, milling and other processing processes because of its high efficiency and high precision. A large amount of metal chips and heat are usually generated in the processing process, so cooling liquid needs to be used continuously to reduce the temperature of the tool and the workpiece, and the chips generated in the processing process are washed away, so as to ensure the processing precision and prolong the tool life.

[0003] The use of cooling liquid not only increases the processing cost, but also causes the performance of cooling liquid to decrease due to the mixing of chips and impurities, and even causes the pipeline to be blocked or the processing quality to be affected. Therefore, the recycling and filtering circulation of cooling liquid become the key technology for improving processing efficiency and reducing cost.

[0004] The existing cooling liquid recovery system mainly separates the chips in the cooling liquid through a filtering device, and needs to be stopped for operation when cleaning or replacing the filtering device, which affects the normal processing process and reduces the production efficiency. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a cooling liquid recovery system for high speed machining center, which can clean and replace the filtering pipe without stopping the machining center or the cooling liquid recovery system, does not affect the normal processing process, ensures the work efficiency, and effectively solves the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cooling liquid recovery system for high speed machining center, including the liquid outlet pipe that communicates with the liquid outlet of the liquid collecting tray for collecting cooling liquid outside, the liquid outlet pipe communicates with the liquid outlet connecting cylinder, the diameter of the liquid outlet connecting cylinder is greater than that of the liquid outlet pipe, the liquid outlet connecting cylinder is provided with the liquid outlet elbow pipe communicated with the liquid outlet pipe, the outlet of the liquid outlet elbow pipe is arranged away from the center of the liquid outlet pipe, the lower side of the liquid outlet connecting cylinder is rotatably provided with the rotating cylinder, the rotating cylinder is provided with at least two filtering pipes, the lower side of the rotating cylinder is rotatably provided with the liquid return connecting cylinder, the lower surface of the liquid return connecting cylinder is provided with the liquid return pipe coaxially arranged with the outlet of the liquid outlet elbow pipe, and any filtering pipe on the rotating cylinder is communicated with the liquid outlet elbow pipe and the liquid return pipe when rotating to the outlet of the liquid outlet elbow pipe.

[0007] As a preferred technical scheme of the utility model, screw holes are arranged at the centers of the liquid outlet connecting cylinder, the rotating cylinder and the liquid return connecting cylinder, and connecting bolts are threadedly connected in the screw holes.

[0008] As a preferred technical scheme of the utility model, the inside of the filter pipe is provided with annular permanent magnets.

[0009] As a preferred technical scheme of the utility model, the inside of the filter pipe is provided with annular permanent magnets.

[0010] As a preferred technical scheme of the utility model, the inside of the filter pipe is provided with annular permanent magnets.

[0011] As a preferred technical scheme of the utility model, the lower surface of the liquid return connecting cylinder is provided with a replacement hole at the symmetrical position with the liquid return pipe, the diameter of the replacement hole is larger than that of the filter pipe, a stop block is arranged in the replacement hole, the stop block is fixed on the liquid return connecting cylinder through fixing bolts, and the lower surface of the stop block is provided with a pull ring.

[0012] As a preferred technical scheme of the utility model, the inside of the filter pipe is provided with annular permanent magnets.

[0013] Compared with the prior art, the utility model has the advantages that: the cooling liquid is filtered through the multiple filter pipes arranged in the rotating cylinder, and the impurities and debris are removed, when the filter pipes need to be cleaned or replaced, the rotating cylinder is rotated by a certain angle, so that another filter pipe moves to between the liquid outlet inclined pipe and the liquid return pipe, and the cooling liquid continues to be filtered, the filter pipes can be cleaned and replaced without stopping the machining center or the cooling liquid recovery system, the normal machining process is not affected, and the work efficiency is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the utility model;

[0016] Figure 3The utility model discloses a structure schematic drawing;

[0017] Figure 4 The utility model discloses a structure schematic drawing;

[0018] Figure 5 The utility model discloses a structure schematic drawing.

[0019] In the drawing: 1 liquid outlet pipe, 2 liquid outlet connecting cylinder, 3 rotating cylinder, 4 liquid return connecting cylinder, 5 liquid return pipe, 6 liquid outlet inclined pipe, 7 connecting bolt, 8 filter pipe, 9 inclined plate, 10 permanent magnet, 11 filter screen, 12 stop block, 13 pull ring, 14 convex block, 15 connecting rod, 16 fixed block, 17 spring, 18 sliding block, 19 sealing groove, 20 flow guide groove. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range protected by the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a cooling liquid recovery system for high-speed machining center, including with the liquid outlet of the liquid collection tray for collecting cooling liquid outside with the liquid outlet pipe 1 of communication, the liquid outlet pipe 1 with liquid outlet connecting cylinder 2 communication, the diameter of liquid outlet connecting cylinder 2 is greater than the diameter of liquid outlet pipe 1, liquid outlet connecting cylinder 2 is provided with the liquid outlet inclined pipe 6 in communication with liquid outlet pipe 1, the outlet of liquid outlet inclined pipe 6 is arranged at the place away from the center of liquid outlet pipe 1, the lower side of liquid outlet connecting cylinder 2 is rotatably provided with rotating cylinder 3, and 2-4 filter pipes 8 are provided in rotating cylinder 3, and the cooling liquid is filtered in filter pipe 8, and the impurities and the like are removed therein.

[0022] The lower side of rotating cylinder 3 is rotatably provided with liquid return connecting cylinder 4, and the outer diameters of liquid outlet connecting cylinder 2, rotating cylinder 3 and liquid return connecting cylinder 4 can be same. And between liquid outlet connecting cylinder 2 and rotating cylinder 3, rotating cylinder 3 and liquid return connecting cylinder 4 are all provided with conventional rotary sealing members, to avoid that cooling liquid leaks from the connecting place.

[0023] The lower surface of liquid return connecting cylinder 4 is provided with liquid return pipe 5 coaxially arranged with the outlet of liquid outlet inclined pipe 6, and any one filter pipe 8 on rotating cylinder 3 is communicated with liquid outlet inclined pipe 6 and liquid return pipe 5 when rotating to the outlet of liquid outlet inclined pipe 6. Liquid outlet pipe 1, liquid outlet connecting cylinder 2, liquid return pipe 5, liquid return connecting cylinder 4 and the like are all fixed immovably by external fixed structure (liquid collection tray, liquid return tank, support and the like), that is, only rotating cylinder 3 can rotate.

[0024] When the filter tube 8 needs to be cleaned or replaced, the rotating cylinder 3 can be rotated by a certain angle to move another filter tube 8 between the liquid outlet inclined pipe 6 and the liquid return pipe 5, and continue to filter the cooling liquid, so that the filter tube 8 can be cleaned and replaced without stopping the machining center or the cooling liquid recovery system, without affecting the normal machining process, and ensuring the work efficiency.

[0025] Indicators such as pointers, arrows, scales, etc. can be arranged outside the rotating cylinder 3, the liquid outlet connecting cylinder 2 and the liquid return connecting cylinder 4, which facilitates the staff to adjust the position of the rotating cylinder 3 and quickly adjust to the position.

[0026] In the preferred technical solution, screw holes are formed at the centers of the liquid outlet connecting cylinder 2, the rotating cylinder 3 and the liquid return connecting cylinder 4, and connecting bolts 7 are screwed into the screw holes for connecting the liquid outlet connecting cylinder 2, the rotating cylinder 3 and the liquid return connecting cylinder 4.

[0027] The screw hole on the liquid outlet connecting cylinder 2 is a blind hole, and the screw holes on the rotating cylinder 3 and the liquid return connecting cylinder 4 are blind holes. The connecting bolts 7 can connect the liquid outlet connecting cylinder 2, the rotating cylinder 3 and the liquid return connecting cylinder 4 together without affecting the rotation and sealing of the rotating cylinder 3 between the liquid outlet connecting cylinder 2 and the liquid return connecting cylinder 4.

[0028] Optionally, clamping structures are arranged between the liquid outlet connecting cylinder 2 and the rotating cylinder 3 and between the rotating cylinder 3 and the liquid return connecting cylinder 4. The clamping structures can be commonly used structures, which can make the upper and lower ends of the rotating cylinder 3 clamped into the inner sides of the liquid outlet connecting cylinder 2 and the liquid return connecting cylinder 4 through external force and the elasticity of the structures, so that the connection and disassembly are more convenient.

[0029] In the preferred technical solution, a ring-shaped permanent magnet 10 is arranged inside the filter tube 8 to adsorb ferromagnetic particles and debris. The ring-shaped permanent magnet 10 is distributed in a ring shape along the inner wall of the filter tube 8 to form a continuous magnetic field area, which can adsorb ferromagnetic particles (such as iron filings, cobalt alloy debris, etc.) in the flowing cooling liquid in all directions. Compared with the traditional single-sided magnetic rod or magnetic sheet design, this structure avoids the adsorption dead angle caused by uneven distribution of magnetic lines, and improves the filtering efficiency.

[0030] The permanent magnet 10 is made of neodymium iron boron (Nd-Fe-B) permanent magnetic material, which has high magnetic energy product (>40MGOe) and anti-demagnetization ability, can withstand high-speed liquid flow impact, and ensures long-term stable adsorption performance. The surface of the neodymium iron boron needs to be plated with nickel or coated with an epoxy resin coating to prevent corrosion of the cooling liquid.

[0031] In the further preferred technical solution, a filter screen 11 is arranged below the permanent magnet 10 inside the filter tube 8. The filter screen 11 can be made of multiple layers of 316L stainless steel wire mesh sintered together, or can be made of titanium alloy woven mesh. At the same time, the surface can be electrolytic polished or treated with a nano coating to reduce impurity adhesion.

[0032] Permanent magnet 10 is responsible for adsorbing ferromagnetic particles (such as iron filings, alloy debris), and filter screen 11 is located on the lower side thereof, mainly for intercepting non-magnetic impurities (such as aluminum filings, plastic debris or oil sludge), forming a double filtration mechanism 5 of "magnetic adsorption + mechanical interception". This multi-stage design can cover impurities of different physicochemical properties, improving the overall filtration efficiency.

[0033] Filter screen 11 can be provided with multiple apertures, which can be customized according to the type of coolant impurities (such as 20 μm, 10 μm), to intercept small particles that are not magnetically adsorbed, preventing them from entering the circulation system and causing pipe blockage or damage to the workpiece surface.

[0034] Further, the upper side of the internal permanent magnet 10 of the filter tube 8 is provided with two inclined plates 9, one end of the inclined plate 9 is fixedly connected with the inner wall of the filter tube 8, and the other end of the inclined plate 9 is provided with a flow guide opening between the inner wall of the filter tube 8. The flow guide openings of the two inclined plates 9 are staggered left and right, and the two inclined plates 9 form a V-shaped inlet on the upper side inside the filter tube 8, so that the coolant and the impurities such as debris carried thereby move downward along the inclined plate 9 under the action of gravity and are intercepted by the permanent magnet 10 and the filter screen 11. The inclined downward arrangement of the inclined plate 9 can block the upward backflow of debris and other impurities, preventing the impurities from moving from the inside to the outside of the filter tube 8 when the rotating cylinder 3 rotates to switch the working filter tube 8, ensuring the stability of the cleaning and replacement of the filter tube 8.

[0035] In the preferred technical solution, a replacement hole is formed in the lower surface of the liquid return connecting cylinder 4 symmetrically with the liquid return pipe 5, the diameter of the replacement hole is greater than the diameter of the filter tube 8, and a stop block 12 is arranged in the replacement hole. The stop block 12 is fixed on the liquid return connecting cylinder 4 by a fixing bolt, and the lower surface of the stop block 12 is provided with a pull ring 13. When the rotating cylinder 3 is operated to rotate, the clean filter tube 8 is moved to the position between the outlet of the liquid outlet inclined pipe 6 and the inlet of the liquid return pipe 5, and the filter tube 8 that needs to be cleaned or replaced is rotated to the replacement hole. At this time, the fixing bolt can be removed and the stop block 12 can be taken out through the pull ring 13, so that the filter tube 8 that needs to be cleaned or replaced can be taken out for treatment. After the treatment is completed or a new filter tube 8 is inserted into the rotating cylinder 3 through the replacement hole, the stop block 12 can be fixed again.

[0036] The filter tube 8 is inserted into the through slot formed in the rotating cylinder 3, and can rotate with the rotating cylinder 3.

[0037] Preferably, the outlet of the liquid outlet inclined pipe 6 and the inner surface of the inlet of the liquid return pipe 5 are provided with 2-4 connecting rods 15, and a plurality of connecting rods 15 are fixedly provided with a circular fixed block 16 coaxial with the outlet of the liquid outlet inclined pipe 6 or the liquid return pipe 5. The cooling liquid flows into the filter cartridge 8 or the liquid return tank (with the function of cooling the cooling liquid) through the gap between the connecting rod 15, the fixed block 16 and the inner wall of the liquid outlet inclined pipe 6 or the liquid return pipe 5. The connecting rod 15, the fixed block 16, the spring 17 and the sliding block 18 at the outlet of the liquid outlet inclined pipe 6 and the inlet of the liquid return pipe 5 are the same structure, and the directions are opposite (up and down).

[0038] The side surface of the connecting rod 15 is fixedly provided with a spring 17 coaxially arranged with the fixed block 16. The end of the spring 17 is fixedly connected with a sliding block 18. The sliding block 18 is in contact with the inner wall of the outlet of the liquid outlet inclined pipe 6 or the liquid return pipe 5. The sliding block 18 is arranged to slide up and down on the inner wall of the vertical part of the liquid outlet inclined pipe 6 or the liquid return pipe 5.

[0039] The spring 17 is made of Inconel 718 high-temperature alloy, which can withstand cooling liquid temperature fluctuations (-20-150℃) and cyclic stress, and has excellent anti-relaxation performance. The spring 17 can also be made of 304 / 316L stainless steel, which is surface plated with zinc, phosphorized or coated with polytetrafluoroethylene (PTFE) to enhance protection, and is suitable for water-based cooling liquid environment.

[0040] The outer side of the spring 17 can be wrapped with fluororubber or silicone rubber sleeve to isolate the direct contact of the cooling liquid; or the spring can be wrapped with stainless steel bellows to prevent debris from being stuck or chemically eroded.

[0041] The sliding block 18 and the fixed block 16 can be made of silicone or fluororubber.

[0042] A flow guide groove 20 is formed on one side surface of the sliding block 18 close to the outlet of the liquid outlet inclined pipe 6 or the inlet of the liquid return pipe 5. A sealing groove 19 is formed on the other side surface of the sliding block 18 away from the outlet of the liquid outlet inclined pipe 6 or the inlet of the liquid return pipe 5, and is in communication with the flow guide groove 20. The sealing groove 19 is matched with the shape of the fixed block 16. The diameters of the sealing groove 19 and the fixed block 16 are greater than the diameter of the flow guide groove 20. When the sliding block 18 is not subjected to external force, it is located away from the fixed block 16 under the action of the spring 17. The flow direction of the cooling liquid is: at the liquid outlet inclined pipe 6, the gap between the connecting rod 15 and the fixed block 16-sealing groove 19-flow guide groove 20-filter cartridge 8; at the liquid return pipe 5, filter cartridge 8-flow guide groove 20-sealing groove 19-gap between the connecting rod 15 and the fixed block 16.

[0043] The rotating cylinder 3 is provided with the arc-shaped convex blocks 14 corresponding to the sliding blocks 18 on the upper and lower surfaces of the rotating cylinder 3, the convex blocks 14 and the filtering tubes 8 are alternately arranged on the same circumference, and the connection between the convex blocks 14 and the filtering tubes 8 is smooth, when the rotating cylinder 3 rotates, the filtering tubes 8 are staggered with the liquid outlet inclined pipe 6 and the liquid return pipe 5, the convex blocks 14 rotate to the liquid outlet inclined pipe 6 and the liquid return pipe 5, and the sliding blocks 18 are extruded upward or downward, when the sliding blocks 18 move, the sealing grooves 19 are clamped to the outer side of the fixed blocks 16, the sealing grooves 19 are closed by the fixed blocks 16, the cooling liquid no longer flows, until another filtering tube 8 moves to the liquid outlet inclined pipe 6 and the liquid return pipe 5, at this time, the sliding blocks 18 are no longer extruded by the convex blocks 14, and the sliding blocks 18 are reset under the elastic force of the springs 17, the sliding blocks 18 are pushed away from the fixed blocks 16, and the sealing grooves 19 and the flow guide grooves 20 are opened, so that the cooling liquid can be continuously recovered and circulated.

[0044] Optionally, the process that the cooling liquid enters the filtering tube 8 can be suspended by arranging the valves (manual or electric) on the liquid outlet pipe 1 and the liquid return pipe 5, then the rotating cylinder 3 is operated to rotate, and the position of the filtering tube 8 is replaced, at this time, the cooling liquid is slightly gathered on the liquid collecting tray, and the working of the machining center is not affected.

[0045] The application also comprises the liquid collecting tray connected with the liquid outlet pipe 1, the liquid return tank connected with the liquid return pipe 5, the cooling device in the liquid return tank, the pump and the cooling liquid spray head, etc., which all adopt the device structures commonly used in the prior art, and the application does not improve the above structures, therefore, the structures disclosed in the prior art are not described again.

[0046] The un-disclosed parts in the utility model are the prior art, and the specific structure, material, control mode of electronic elements and working principle are not described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling liquid recovery system for a high speed machining center, comprising a liquid outlet pipe (1) in communication with a liquid outlet of an external liquid collection tray for collecting cooling liquid, characterized in that: The outlet pipe (1) is communicated with the outlet connecting cylinder (2), the diameter of the outlet connecting cylinder (2) is larger than that of the outlet pipe (1), the outlet connecting cylinder (2) is provided with the outlet inclined pipe (6) communicated with the outlet pipe (1), the outlet of the outlet inclined pipe (6) is arranged away from the center of the outlet pipe (1), the lower side of the outlet connecting cylinder (2) is rotatably provided with the rotating cylinder (3), the rotating cylinder (3) is provided with at least two filter pipes (8), the lower side of the rotating cylinder (3) is rotatably provided with the liquid return connecting cylinder (4), the lower surface of the liquid return connecting cylinder (4) is provided with the liquid return pipe (5) coaxially arranged with the outlet of the outlet inclined pipe (6), when any one of the filter pipes (8) on the rotating cylinder (3) rotates to the outlet of the outlet inclined pipe (6), the outlet inclined pipe (6) and the liquid return pipe (5) are communicated.

2. The cooling liquid recovery system for a high-speed machining center according to claim 1, characterized in that: The center of the outlet connecting cylinder (2), the rotating cylinder (3) and the liquid return connecting cylinder (4) is provided with a screw hole, and the screw hole is threadedly connected with a connecting bolt (7).

3. The cooling liquid recovery system for high speed machining center according to claim 1, characterized in that: The inside of the filter pipe (8) is provided with a ring-shaped permanent magnet (10).

4. The cooling liquid recovery system for high speed machining center according to claim 3, characterized in that: The lower side of the permanent magnet (10) in the filter pipe (8) is provided with a filter screen (11).

5. The cooling liquid recovery system for high speed machining center according to claim 1, characterized in that: The upper side of the permanent magnet (10) in the filter pipe (8) is provided with at least two inclined plates (9), one end of the inclined plate (9) is fixedly connected with the inner wall of the filter pipe (8), and the other end of the inclined plate (9) is provided with a flow guide opening between the inner wall of the filter pipe (8), and the flow guide openings of the adjacent inclined plates (9) are staggered left and right.

6. The cooling liquid recovery system for high speed machining center according to claim 1, characterized in that: The lower surface of the liquid return connecting cylinder (4) is provided with a replacement hole symmetrical with the liquid return pipe (5), the diameter of the replacement hole is larger than that of the filter pipe (8), and the replacement hole is provided with a stop block (12), the stop block (12) is fixed on the liquid return connecting cylinder (4) by a fixing bolt, and the lower surface of the stop block (12) is provided with a pull ring (13).

7. The cooling liquid recovery system for high speed machining center according to any one of claims 1-6, characterized in that: The inside surface of the outlet of the outlet inclined pipe (6) and the inlet of the liquid return pipe (5) is provided with at least two connecting rods (15), the connecting rods (15) are fixedly provided with a circular fixing block (16) coaxial with the outlet of the outlet inclined pipe (6) or the liquid return pipe (5), the side surface of the connecting rod (15) is fixedly provided with a spring (17) coaxial with the fixing block (16), the end of the spring (17) is fixedly connected with a sliding block (18), the sliding block (18) is in contact with the inner wall of the outlet of the outlet inclined pipe (6) or the liquid return pipe (5), the side surface of the sliding block (18) close to the outlet of the outlet inclined pipe (6) or the inlet of the liquid return pipe (5) is provided with a flow guide groove (20), the side surface of the sliding block (18) away from the outlet of the outlet inclined pipe (6) or the inlet of the liquid return pipe (5) is provided with a sealing groove (19) communicated with the flow guide groove (20), the sealing groove (19) is matched with the shape of the fixing block (16), the upper surface and the lower surface of the rotating cylinder (3) are provided with arc-shaped convex blocks (14) corresponding to the sliding block (18), and the convex blocks (14) and the filter pipes (8) are alternately arranged on the same circumference.

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