CN112091720A - Cutting fluid recycling equipment of full-automatic numerical control machine tool - Google Patents
Cutting fluid recycling equipment of full-automatic numerical control machine tool Download PDFInfo
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- CN112091720A CN112091720A CN202011134854.0A CN202011134854A CN112091720A CN 112091720 A CN112091720 A CN 112091720A CN 202011134854 A CN202011134854 A CN 202011134854A CN 112091720 A CN112091720 A CN 112091720A
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- cutting fluid
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- filter screen
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- 238000004064 recycling Methods 0.000 title claims abstract description 60
- 239000002173 cutting fluid Substances 0.000 title claims abstract description 57
- 238000011084 recovery Methods 0.000 claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000010405 clearance mechanism Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1069—Filtration systems specially adapted for cutting liquids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention discloses cutting fluid recycling equipment of a full-automatic numerical control machine tool, which comprises a recycling bin, wherein one side of the lower end of the recycling bin is communicated with a recycling pipe, the bottom of the recycling bin is provided with a chip collecting box, and one side of the top of the recycling bin is provided with a backflow port; a plurality of filter assemblies are arranged in the recovery bin in the vertical direction, and a clearing mechanism is arranged below each filter assembly. According to the full-automatic numerical control machine tool cutting fluid recycling equipment, the cutting fluid is injected from the bottom of the recycling bin and flows out from the top, automatic settlement is achieved by the aid of the gravity of the chips, most of the chips are collected, the chips mixed in the cutting fluid are filtered step by the aid of the multi-layer filtering assembly, the quality of the recycled cutting fluid is guaranteed, meanwhile, a filter screen can be effectively prevented from being blocked, the cutting fluid is guaranteed to flow smoothly, and recycling efficiency is improved; the filter screen below sets up clearance mechanism, avoids the filter screen mesh to block up, guarantees the filter effect and the unobstructed degree of filter screen.
Description
Technical Field
The invention relates to the technical field of production and processing of flat ceramic membranes, in particular to cutting fluid recycling equipment for a full-automatic numerical control machine tool.
Background
The ceramic membrane has the advantages of good chemical stability, acid and alkali resistance, organic solvent resistance, high temperature resistance, pollution resistance, high mechanical strength, long service life and the like, is successfully applied to various fields of water treatment, food processing, biomedicine, fine chemical industry and the like, and can be used for separation, clarification, purification, concentration and other processes in the technical process. The flat ceramic membrane has the advantages of low manufacturing cost, small filtration resistance, low operation energy consumption, strong pollution resistance, easy cleaning and the like, so the flat ceramic membrane is rapidly developed in recent years.
In dull and stereotyped ceramic membrane production process, need use the digit control machine tool to process it, for resources are saved, the cutting fluid that produces in the course of working needs to be retrieved and recycled, generally set up the filter screen at the recovery end of cutting fluid at present, when the cutting fluid flows through the filter screen from last to low, piece in the cutting fluid is detained in the filter screen top, thereby realize the filtration recovery of cutting fluid, but this kind of filtration mode has an drawback, be exactly in long-time use, the piece can be accumulated gradually and collect on the wire side, cause the filter screen to block up, thereby influence the smooth circulation of cutting fluid, and then lead to cutting fluid recovery efficiency not high.
Disclosure of Invention
The invention aims to provide cutting fluid recycling equipment for a full-automatic numerical control machine tool, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the cutting fluid recycling equipment for the full-automatic numerical control machine tool comprises a recycling bin, wherein one side of the lower end of the recycling bin is communicated with a recycling pipe, the bottom of the recycling bin is provided with a chip collecting box, and one side of the top of the recycling bin is provided with a backflow port; it has a plurality of filter assemblies to arrange to retrieve vertical direction in the storehouse, filter assembly includes shrouding and filter screen, the shrouding stretches into in retrieving the storehouse and the card is established on retrieving storehouse offside inner wall from retrieving storehouse lateral wall downward sloping, be equipped with the filter screen on the shrouding, each filter assembly below all is equipped with clears away the mechanism, it includes slide rail and mounting panel to clear away the subassembly, slide rail fixed mounting just is unanimous with the gradient of filter screen on retrieving the storehouse inner wall, it is equipped with the slider to slide in the slide rail, be fixed with the mounting panel on the slider, the fixed plate is equipped with the brush on the terminal surface of filter screen, it is equipped with the drive assembly of drive slider along slide.
As a further scheme of the invention: the driving assembly comprises a driving cylinder and a telescopic rod, the driving cylinder is fixedly mounted on the side wall of the recovery bin, the inclination of the driving cylinder is consistent with that of the filter screen, the telescopic rod is sleeved in the driving cylinder in a sliding mode, and the extending tail end of the telescopic rod is fixedly connected with the mounting plate through a connecting block.
As a further scheme of the invention: and the extending end of the sealing plate is provided with a push-pull plate.
As a further scheme of the invention: and a sealing strip is arranged at the joint of the side wall of the recovery bin and the sealing plate.
As a further scheme of the invention: the two sides of the upper end of the scrap collecting box are provided with U-shaped frames, two sides of the bottom of the recovery bin are provided with bulges, and the U-shaped frames are movably clamped on the bulges.
As a further scheme of the invention: and a liquid discharge pipe with a filter is arranged at the bottom of the scrap collecting box, and a valve is arranged on the liquid discharge pipe.
As a further scheme of the invention: and a check valve is arranged in the recovery pipe.
Compared with the prior art, the invention has the beneficial effects that:
according to the full-automatic numerical control machine tool cutting fluid recycling equipment, the cutting fluid is injected from the bottom of the recycling bin and flows out from the top, automatic settlement is realized by using the gravity of the chips, most of the chips are collected, and the chips mixed in the cutting fluid are filtered step by step through the multi-layer filter screen, so that the quality of the recycled cutting fluid is ensured, meanwhile, the filter screen can be effectively prevented from being blocked, the cutting fluid is ensured to flow smoothly, and the recycling efficiency is improved; a cleaning mechanism is arranged below the filter screen, and the brush which moves back and forth is used for cleaning the screen surface of the filter screen, so that the mesh blockage of the filter screen is avoided, and the filtering effect and the smoothness of the filter screen are ensured; filter screen and collection bits box all can carry out quick assembly disassembly, conveniently unpicks and washes and change, the simple operation.
Drawings
FIG. 1 is a first perspective view of a cutting fluid recycling apparatus of a full-automatic numerical control machine;
FIG. 2 is a perspective view of a filter assembly in the cutting fluid recycling apparatus of the full-automatic numerical control machine;
fig. 3 is a second perspective view of the cutting fluid recycling device of the full-automatic numerical control machine.
In the figure: 1-recovery bin, 2-recovery pipe, 3-scrap collecting box, 4-reflux port, 5-sealing plate, 6-filter screen, 7-slide rail, 8-slide block, 9-mounting plate, 10-brush, 11-connecting block, 12-driving cylinder, 13-telescopic rod, 14-push-pull plate, 15-sealing strip, 16-supporting plate, 17-U-shaped frame, 18-liquid discharge pipe, 19-valve and 20-check valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, a cutting fluid recycling device of a full-automatic numerical control machine tool comprises a recycling bin 1, wherein one side of the lower end of the recycling bin 1 is communicated with a recycling pipe 2, a chip collecting box 3 is arranged at the bottom of the recycling bin 1, and a backflow port 4 is arranged at one side of the top of the recycling bin 1; a plurality of filter assemblies are arranged in the recovery bin 1 in the vertical direction, each filter assembly comprises a closing plate 5 and a filter screen 6, each closing plate 5 inclines downwards from one side wall of the recovery bin 1 and extends into the recovery bin 1 and is clamped on the inner wall of the opposite side of the recovery bin 1, each closing plate 5 is provided with the filter screen 6, a cleaning mechanism is arranged below each filter assembly, each cleaning assembly comprises a slide rail 7 and a mounting plate 9, each slide rail 7 is fixedly mounted on the inner wall of the recovery bin 1 and is consistent with the inclination of the filter screen 6, a slide block 8 is embedded in each slide rail 7 in a sliding mode, each mounting plate 9 is fixed on each slide block 8, a brush 10 is arranged on the end face, facing the corresponding filter screen 6, of each fixing plate 9, and a driving assembly for driving each;
the specific form of the driving assembly is not limited, in this embodiment, preferably, the driving assembly includes a driving cylinder 12 and an expansion link 13, the driving cylinder 12 is fixedly installed on the side wall of the recovery bin 1, the inclination of the driving cylinder is consistent with that of the filter screen 6, the expansion link 13 is slidably sleeved in the driving cylinder 12, and the extending tail end of the expansion link 13 is fixedly connected with the mounting plate 9 through a connecting block 11;
specifically, the used cutting fluid flows into a recovery bin 1 through a recovery pipe 2, most of chips contained in the cutting fluid can sink and fall into a chip collecting box 3 under the action of gravity, a small part of chips can flow upwards along with the cutting fluid, and in the flowing process, each layer of filter screen 6 can filter the chips contained in the cutting fluid step by step, so that the cutting fluid finally flowing into a return port meets the recycling requirement; after long-time use, part of the scraps can be blocked in the meshes of the filter screen 6, so that the filter screen 6 is blocked, and normal circulation of cutting fluid is influenced, at the moment, the telescopic rod 13 can be driven by the driving cylinder 12 to do reciprocating telescopic motion, so that the sliding block 8 is driven to do reciprocating motion along the sliding rail 7, and the hairbrush 10 on the mounting plate 9 is driven to perform back-and-forth cleaning on the filter screen 6, so that the meshes on the filter screen 6 are dredged;
referring to fig. 3, in order to facilitate replacement of the filter screen 6, the extending end of the sealing plate 5 is provided with a push-pull plate 14, and the sealing plate 5 can be inserted into the recycling bin 1 or pulled out of the recycling bin 1 through the push-pull plate 14, so that the operation is convenient;
the sealing strip 15 is arranged at the joint of the side wall of the recovery bin 1 and the sealing plate 5, so that the sealing performance of the recovery bin 1 is improved, and the cutting fluid is prevented from leaking out from a gap between the recovery bin 1 and the sealing plate 5;
in order to facilitate the disassembly and assembly of the scrap collecting box 3, two sides of the upper end of the scrap collecting box 3 are provided with U-shaped frames 17, two sides of the bottom of the recovery bin 1 are provided with bulges, the U-shaped frames 17 are movably clamped on the bulges, and when the scrap in the scrap collecting box 3 is fully collected, the scrap collecting box 3 can be conveniently horizontally drawn out for cleaning;
the bottom of the chip collection box 3 is provided with a liquid discharge pipe 18 with a filter, the liquid discharge pipe 18 is provided with a valve 19, after the operation is stopped, the valve 19 is opened, the residual cutting liquid in the recovery bin 1 is discharged from the liquid discharge pipe 18 at the bottom of the chip collection box 3, the chips are retained in the chip collection box 3 under the action of the filter, and then the chip collection box 3 is taken out, so that the internal chips can be poured out and cleaned.
The working principle of the embodiment is as follows:
the used cutting fluid flows into the recovery bin 1 through the recovery pipe 2, most of chips contained in the cutting fluid can sink and fall into the chip collection box 3 under the action of gravity, and a small amount of chips can flow upwards along with the cutting fluid, and in the flowing process, each layer of filter screen 6 can filter the chips contained in the cutting fluid step by step, so that the cutting fluid finally flowing into the return port can meet the recycling requirement; after long-time use, part of the scraps can be blocked in the meshes of the filter screen 6, so that the filter screen 6 is blocked, and normal circulation of cutting fluid is influenced, at the moment, the telescopic rod 13 can be driven by the driving cylinder 12 to do reciprocating telescopic motion, so that the sliding block 8 is driven to do reciprocating motion along the sliding rail 7, and the hairbrush 10 on the mounting plate 9 is driven to perform back-and-forth cleaning on the filter screen 6, so that the meshes on the filter screen 6 are dredged; after the chip collecting box 3 is filled with chips, cutting fluid recovery is stopped, the valve 19 is opened, residual cutting fluid in the recovery bin 1 is discharged from the liquid discharge pipe 18 at the bottom of the chip collecting box 3, the chips are retained in the chip collecting box 3 under the action of the filter, the chip collecting box 3 is taken out, and the chips inside can be poured out and cleaned.
Example 2
The cutting fluid recycling equipment for the full-automatic numerical control machine tool comprises a recycling bin 1, wherein one side of the lower end of the recycling bin 1 is communicated with a recycling pipe 2, a scrap collecting box 3 is arranged at the bottom of the recycling bin 1, and a backflow port 4 is arranged at one side of the top of the recycling bin 1; a plurality of filter assemblies are arranged in the recovery bin 1 in the vertical direction, each filter assembly comprises a closing plate 5 and a filter screen 6, each closing plate 5 inclines downwards from one side wall of the recovery bin 1 and extends into the recovery bin 1 and is clamped on the inner wall of the opposite side of the recovery bin 1, each closing plate 5 is provided with the filter screen 6, a cleaning mechanism is arranged below each filter assembly, each cleaning assembly comprises a slide rail 7 and a mounting plate 9, each slide rail 7 is fixedly mounted on the inner wall of the recovery bin 1 and is consistent with the inclination of the filter screen 6, a slide block 8 is embedded in each slide rail 7 in a sliding mode, each mounting plate 9 is fixed on each slide block 8, a brush 10 is arranged on the end face, facing the corresponding filter screen 6, of each fixing plate 9, and a driving assembly for driving each;
in order to avoid the backflow of the cutting fluid in the recovery pipe 2, a check valve 20 is installed in the recovery pipe 2, and the check valve 20 enables the recovery pipe 2 to be conducted in a one-way mode and cut in a reverse direction, so that the backflow of the cutting fluid is prevented, and the smoothness of the recovery pipe 2 is guaranteed.
According to the full-automatic numerical control machine tool cutting fluid recycling equipment, cutting fluid is injected from the bottom of the recycling bin 1 and flows out from the top, automatic settlement is achieved by the aid of gravity of the chips, most of the chips are collected, the chips mixed in the cutting fluid are filtered step by step through the multi-layer filter screen 6, quality of the recycled cutting fluid is guaranteed, meanwhile, the filter screen 6 can be effectively prevented from being blocked, the cutting fluid is guaranteed to flow smoothly, and recycling efficiency is improved; a cleaning mechanism is arranged below the filter screen, and the brush 10 which moves back and forth is used for cleaning the screen surface of the filter screen 6, so that the mesh of the filter screen 6 is prevented from being blocked, and the filtering effect and the smoothness of the filter screen 6 are ensured; filter screen 6 and collection bits box 3 all can carry out quick assembly disassembly, conveniently unpick and wash and change, the simple operation.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The cutting fluid recycling equipment for the full-automatic numerical control machine tool comprises a recycling bin (1), and is characterized in that one side of the lower end of the recycling bin (1) is communicated with a recycling pipe (2), a chip collecting box (3) is arranged at the bottom of the recycling bin (1), and a backflow port (4) is arranged at one side of the top of the recycling bin (1); a plurality of filtering components are vertically arranged in the recovery bin (1), each filtering component comprises a closing plate (5) and a filter screen (6), the sealing plate (5) is downwards inclined from one side wall of the recovery bin (1) to extend into the recovery bin (1) and is clamped on the inner wall of the opposite side of the recovery bin (1), a filter screen (6) is arranged on the sealing plate (5), a clearing mechanism is arranged below each filter component, the clearing component comprises a slide rail (7) and a mounting plate (9), the slide rail (7) is fixedly mounted on the inner wall of the recovery bin (1) and is consistent with the inclination of the filter screen (6), a slide block (8) is embedded in the slide rail (7) in a sliding way, a mounting plate (9) is fixed on the slide block (8), a brush (10) is arranged on the end surface of the fixing plate (9) facing the filter screen (6), and a driving component for driving the sliding block (8) to move along the sliding rail (7) is arranged on the side wall of the recovery bin (1).
2. The cutting fluid recycling device of the full-automatic numerical control machine tool according to claim 1, wherein the driving assembly comprises a driving cylinder (12) and a telescopic rod (13), the driving cylinder (12) is fixedly installed on the side wall of the recycling bin (1) and has the same inclination as the filter screen (6), the telescopic rod (13) is slidably sleeved in the driving cylinder (12), and the extending tail end of the telescopic rod (13) is fixedly connected with the mounting plate (9) through a connecting block (11).
3. The cutting fluid recycling device of the full-automatic numerical control machine tool according to claim 1, wherein the protruding end of the sealing plate (5) is provided with a push-pull plate (14).
4. The full-automatic numerically-controlled machine tool cutting fluid recycling equipment as claimed in claim 3, wherein a sealing strip (15) is arranged at the joint of the side wall of the recycling bin (1) and the sealing plate (5).
5. The cutting fluid recycling device of the full-automatic numerical control machine tool according to claim 1, wherein two sides of the upper end of the chip collecting box (3) are provided with U-shaped frames (17), two sides of the bottom of the recycling bin (1) are provided with protrusions, and the U-shaped frames (17) are movably clamped on the protrusions.
6. The cutting fluid recycling device of the full-automatic numerical control machine tool according to claim 5, characterized in that a drain pipe (18) with a filter is arranged at the bottom of the chip collecting box (3), and a valve (19) is arranged on the drain pipe (18).
7. The full-automatic numerically-controlled machine tool cutting fluid recycling equipment as claimed in any one of claims 1 to 6, wherein a check valve (20) is installed in the recycling pipe (2).
Priority Applications (1)
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CN202011134854.0A CN112091720A (en) | 2020-10-21 | 2020-10-21 | Cutting fluid recycling equipment of full-automatic numerical control machine tool |
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CN202011134854.0A CN112091720A (en) | 2020-10-21 | 2020-10-21 | Cutting fluid recycling equipment of full-automatic numerical control machine tool |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113275637A (en) * | 2021-05-14 | 2021-08-20 | 常州肯达工具有限公司 | Milling cutter machining cooling device capable of recycling cooling liquid |
CN114083342A (en) * | 2021-12-07 | 2022-02-25 | 无锡云集机械有限公司 | Coolant liquid recovery formula digit control machine tool |
CN114833622A (en) * | 2022-04-19 | 2022-08-02 | 刘珍珠 | Regular self-cleaning type intelligent machine tool and cleaning method thereof |
CN116276278A (en) * | 2023-03-24 | 2023-06-23 | 江苏安锦橡胶有限公司 | Waste recycling equipment for machining mechanical parts |
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2020
- 2020-10-21 CN CN202011134854.0A patent/CN112091720A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113275637A (en) * | 2021-05-14 | 2021-08-20 | 常州肯达工具有限公司 | Milling cutter machining cooling device capable of recycling cooling liquid |
CN113275637B (en) * | 2021-05-14 | 2022-07-01 | 常州肯达工具有限公司 | Milling cutter machining cooling device capable of recycling cooling liquid |
CN114083342A (en) * | 2021-12-07 | 2022-02-25 | 无锡云集机械有限公司 | Coolant liquid recovery formula digit control machine tool |
CN114833622A (en) * | 2022-04-19 | 2022-08-02 | 刘珍珠 | Regular self-cleaning type intelligent machine tool and cleaning method thereof |
CN114833622B (en) * | 2022-04-19 | 2023-10-20 | 湖南普达精密科技有限公司 | Periodic self-cleaning intelligent machine tool and cleaning method thereof |
CN116276278A (en) * | 2023-03-24 | 2023-06-23 | 江苏安锦橡胶有限公司 | Waste recycling equipment for machining mechanical parts |
CN116276278B (en) * | 2023-03-24 | 2023-11-21 | 江苏安锦橡胶有限公司 | Waste recycling equipment for machining mechanical parts |
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Country or region after: China Address after: 250000 science and Technology Park, Xincheng University, Jinan, Shandong Province Applicant after: Qilu University of Technology (Shandong Academy of Sciences) Address before: 250000 science and Technology Park, Xincheng University, Jinan, Shandong Province Applicant before: Qilu University of Technology Country or region before: China |