Machining center cutting fluid recovery device

Abstract

The invention relates to a machining center cutting fluid recovery device which comprises a rack arranged at a cutting fluid outlet of a machining center. The filtering barrel is arranged on the rack and used for receiving the cutting fluid discharged by the machining center; the filter screens are used for filtering the cutting fluid entering the filter barrel; the switching device is arranged on the rack and is used for replacing a clean filter screen and a full-load filter screen; the cleaning bin is arranged on the rack, is connected with the side wall of the filter barrel and is used for accommodating the full-load filter screen; the cleaning device is arranged in the cleaning bin and is used for cleaning the filter screen; the detection device is used for detecting the quality of waste scraps and impurities on the filter screen and starting the switching device and the cleaning device according to a detection result; the isolating device is used for isolating the filtering barrel from the cleaning bin. Compared with the prior art, the device has the beneficial effects that cleaning is conducted in an automatic cleaning mode, shutdown is not needed in the cleaning process, the cleaning process is convenient and rapid, and the overall production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of machine tools, and in particular to a cutting fluid recovery device for a machining center. Background Art

[0002] During the process of machining parts, the machining center needs to use a large amount of cutting fluid for heat dissipation and lubrication. Due to the high cost of cutting fluid, the used cutting fluid is usually recycled.

[0003] A common recycling method is to remove waste impurities in the cutting fluid through the cooperation of a filter screen and a sedimentation tank. The filter screens the cutting fluid to remove large particles of waste impurities, and then passes the cutting fluid through a sedimentation tank to precipitate and remove smaller particles of waste impurities. The cutting fluid is then recycled through a circulation pump.

[0004] Regarding the above-mentioned related technologies, it is believed that the following defects exist: in the process of continuous large-scale processing of parts, due to the fast processing speed of the machining center, the flow rate of the cutting fluid is large, and the filter screen filters a large amount of waste chips and impurities, requiring frequent shutdowns to clean the filter screen, which is troublesome and also reduces the processing efficiency. Summary of the invention

[0005] In order to solve the problem that the filter screen of the existing machining center needs to be frequently stopped for cleaning during large-scale continuous processing of parts, which reduces the processing efficiency, the present application provides a cutting fluid recovery device for the machining center.

[0006] The present application provides a machining center cutting fluid recovery device that adopts the following technical solution: A cutting fluid recovery device for a machining center, comprising: The frame is located at the cutting fluid outlet of the machining center; A filter barrel is provided on the frame and is used to receive the cutting fluid discharged from the machining center; A plurality of filter screens are provided for filtering the cutting fluid entering the filter barrel; A switching device, provided on the frame, for replacing a clean filter screen with a fully loaded filter screen; A cleaning bin, provided on the frame and connected to the side wall of the filter barrel, for accommodating the filter screen with a full load; A cleaning device, disposed in the cleaning chamber, for cleaning the filter screen; A detection device is used to detect the amount of waste debris on the filter screen and start the switching device and the cleaning device according to the detection result; Isolation device, used to isolate the filter barrel and the cleaning chamber.

[0007] Through the above technical solution, when the filter is fully loaded, the detection device detects that the filter is fully loaded, and then starts the switching device to switch the clean filter to the filter barrel for continued use, and switches the fully loaded filter to the cleaning bin for cleaning by the cleaning device. At the same time, the clean filter and the fully loaded filter are isolated by the isolation device, so that the filters are not easy to interfere with each other during cleaning, and because the cleaning is carried out by automatic cleaning, there is no need to stop the machine during the cleaning process, and compared with the traditional method that requires manual opening of the filter box for disassembly, the cleaning process is more convenient and quick, thereby improving the overall production efficiency.

[0008] Optionally, the cleaning bin is annular, and the switching device comprises: An installation shaft is rotatably mounted on the frame in a vertical state; Brackets, circumferentially arranged at intervals on the side wall of the mounting shaft, for mounting the filter screen; A driving member, used for driving the installation shaft to rotate; A liquid inlet is formed through the top wall of the cleaning bin, and the upper end of the filter barrel passes through the bottom wall of the cleaning bin and is opposite to the liquid inlet. The used cutting fluid passes through the liquid inlet and is filtered by the filter net before entering the filter barrel.

[0009] Optionally, the bracket is rotatably connected to the side wall of the mounting shaft, the frame is provided with a driving mechanism for driving the bracket to rotate, and the mounting shaft is provided with a fixing assembly for fixing the bracket; The cleaning device comprises: A first waste box, which is arranged on the frame and connected to the cleaning bin, and is used to receive the waste dropped from the filter net after the support rotates; A flushing nozzle is arranged in the cleaning chamber and is used for reverse flushing and cleaning the filter screen; A second waste box, provided on the frame and connected to the cleaning bin, for receiving waste water flushed down by the flushing nozzle; A drying nozzle is arranged in the cleaning chamber and is used to dry the filter screen after backwashing.

[0010] Optionally, the detection device includes: A connecting rod, rotatably mounted on the inner wall of the filter barrel; A detection float, provided at one end of the connecting rod, for detecting the water level in the filter barrel; A start button, arranged on the inner wall of the filter barrel, for starting the drive member; The pressing block is arranged on the side wall of the connecting rod, and when the water level reaches a specified height, the starting button is pressed tightly.

[0011] Optionally, the driving mechanism includes: A driving bar, which is annular, is arranged on the frame and is coaxial with the mounting shaft, and has two arc-shaped racks arranged thereon; A switching gear is rotatably mounted on the side wall of the mounting shaft and is transmission-connected to the bracket via a bevel gear, and is used to engage with the arc-shaped rack, driving the bracket to flip before the bracket enters the range of the flushing nozzle, and driving the bracket to flip and reset when the bracket enters the range of the drying nozzle.

[0012] Optionally, the fixing component includes: A fixing plate is slidably mounted on the side wall of the mounting shaft, and the bracket is provided with a fixing hole that slidably cooperates with the fixing plate; A fixing spring, used for pushing the fixing plate to be inserted into the fixing hole; A first guide block, disposed on the fixed plate; The second guide block is arranged on the driving bar, and is used to cooperate with the first guide block to drive the fixing plate to slide out of the fixing hole during the rotation of the bracket.

[0013] Optionally, the isolation device includes: An isolation frame is vertically slidably installed in the cleaning bin and is used to isolate the liquid inlet space of the filter barrel from the remaining space in the cleaning bin; a third guide block, provided on the isolation frame; The fourth guide block is arranged on the installation shaft, and cooperates with the third guide block to push the isolation frame upward as the installation shaft rotates, and keeps the isolation frame in an open state during the switching process of the filter plate.

[0014] Optionally, the frame is provided with an annular installation box, the driving mechanism and the fixing assembly are both located in the installation box, the cleaning bin is connected to the installation box, a side wall connecting the installation box and the cleaning bin is penetrated with an annular groove, the annular groove penetrates the cleaning bin, an annular baffle is slidably installed in the annular groove, one end of the bracket passes through the annular baffle and rotates and seals with the annular baffle, and the fourth guide block is arranged on the annular baffle.

[0015] Optionally, a filter screen is also provided in the filter barrel.

[0016] Optionally, the mounting shaft is provided with a plurality of top blocks at circumferential intervals around its axis, the top blocks corresponding to the bracket one-to-one, the frame first pressure sensor, when the mounting shaft rotates to the point where the filter screen is opposite to the filter barrel, the top block presses against the first pressure sensor, and the mounting shaft stops rotating, two second pressure sensors are provided in the mounting box, the two pressure sensors are respectively provided with a first pressure plate and a second pressure plate, the mounting box is respectively provided with support springs for supporting the first pressure plate and the second pressure plate, the side wall of the mounting shaft is provided with a plurality of pressing blocks corresponding to the bracket, when the bracket enters the working range of the flushing nozzle, the pressing block corresponding to the bracket presses the first pressure plate down and presses against the second pressure sensor, and the flushing nozzle is started, when the bracket enters the working range of the drying nozzle, the pressing block corresponding to the bracket presses the second pressure plate down and presses against the second pressure sensor, and the drying nozzle is started.

[0017] To summarize, the present application detects the usage of cutting fluid and switches the filter through the installation shaft according to the usage. While the filter is replaced one by one, the waste chips on the filter are poured out in turn, the filter is backwashed, the filter is reset and blown dry, so that the filter can be switched automatically, thereby improving the overall filtration efficiency and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0019] Figure 2 It is an exploded schematic diagram of the present application, in which the top wall of the cleaning bin and the installation box are removed.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the present application, in which part of the frame and the top wall of the installation box are removed.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the driving mechanism of the present application, in which the frame below the second pressure plate is exploded, and the bracket is in a state of being aligned with the filter screen, and the filter screen mounting part of the bracket is cut off in the figure.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the bracket and the switching gear of the present application.

[0023] Figure 6 It is a cross-sectional view of the filter barrel of the present application.

[0024] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.

[0025] Figure numerals: 1, frame; 11, filter barrel; 12, filter screen; 13, circulation pump; 14, cleaning chamber; 141, liquid inlet; 15, first pressure sensor; 2, switching device; 21, mounting shaft; 211, top block; 212, bottom plate; 213, tightening block; 214, mounting surface; 22, bracket; 221, fixing hole; 23, driving member; 231, driving motor; 3, cleaning device; 31, first waste box; 32, flushing nozzle; 321, flushing pipe; 33, second waste box; 34, drying nozzle; 341, drying pipe; 35, drying box; 4, detection device; 41, Connecting rod; 42, detection float; 43, start button; 44, pressure block; 5, isolation device; 51, isolation frame; 52, third guide block; 53, fourth guide block; 54, sealing strip; 6, driving mechanism; 61, driving bar; 62, arc rack; 63, switching gear; 64, bevel gear; 7, fixing assembly; 71, fixing plate; 72, fixing spring; 73, first guide block; 74, second guide block; 741, guiding slope; 8, mounting box; 81, annular groove; 82, annular baffle; 83, second pressure sensor; 84, first pressure plate; 85, second pressure plate; 86, supporting spring. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 —6 Provide further details of this application.

[0027] The present application embodiment discloses a cutting fluid recovery device for a machining center, referring to Figure 1 , Figure 2 and Figure 3 , including a frame 1, a switching device 2, a cleaning device 3, a detection device 4, an isolation device 5, a cleaning chamber 14, a filter barrel 11 fixedly installed on the frame 1, and a plurality of filter screens 12 for filtering the cutting fluid entering the filter barrel 11.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The cleaning device 3 is fixedly installed on the frame 1 in a ring shape, and the filter barrel 11 is fixedly installed on the frame 1, and the upper end of the filter barrel 11 passes through the bottom wall of the cleaning chamber 14 and is located in the cleaning chamber 14. A liquid inlet 141 is opened through the top wall of the cleaning chamber 14. The waste cutting fluid enters the filter barrel 11 after passing through the liquid inlet 141. A circulating pump 13 is fixedly provided on the side wall of the filter barrel 11 for recovering the cutting fluid in the filter barrel 11.

[0029] Reference Figure 3 and Figure 4The switching device 2 includes a mounting shaft 21 coaxially rotatably mounted on the frame 1 with the cleaning bin 14. In this embodiment, four filter screens 12 are provided. Four mounting surfaces 214 are provided at the upper end of the mounting shaft 21. A horizontal bracket 22 is rotatably mounted on each of the four mounting surfaces 214. The frame 1 is provided with a driving member 23. The driving member 23 includes a driving motor 231 fixedly mounted on the frame 1. The driving motor 231 is in transmission connection with the mounting shaft 21, and the mounting shaft 21 is driven to rotate by the driving motor 231.

[0030] Reference Figure 1 and Figure 6 The detection mechanism includes a connecting rod 41 rotatably installed in the filter barrel 11 and a detection float 42 fixedly installed at the end of the connecting rod 41, a pressure block 44 is fixedly installed on the side wall of the connecting rod 41, and a start button 43 for starting the drive motor 231 is fixedly installed on the inner wall of the filter barrel 11. When the liquid level in the filter barrel 11 reaches a specified height, the detection float 42 drives the connecting rod 41 to rotate until the pressure block 44 presses the start button 43, and the start button 43 starts the drive motor 231 and the circulation pump 13. The circulation pump 13 starts to discharge a specified amount of cutting fluid per unit time.

[0031] Reference Figure 3 and Figure 4 The filter screens 12 are fixedly mounted on four brackets 22 one by one, four top blocks 211 are fixedly mounted at intervals around the axis of the mounting shaft 21, a first pressure sensor 15 is fixedly mounted on the frame 1, and the four top blocks 211 correspond to the four brackets 22 respectively. When the mounting shaft 21 rotates to one of the brackets 22 corresponds to the filter barrel 11, the top block 211 corresponding to the bracket 22 presses against the first pressure sensor 15, the driving motor 231 stops, and the circulating pump 13 stops.

[0032] Reference Figure 2 and Figure 3 The cleaning device 3 includes a first waste box 31, a second waste box 33 and a drying box 35 which are slidably mounted on the frame 1. The first waste box 31, the second waste box 33 and the drying box 35 are sequentially arranged along the rotation direction of the mounting shaft 21. The first waste box 31 has an upper opening and is connected to the cleaning bin 14, the second waste box 33 has an upper opening and is connected to the cleaning bin 14, and the drying box 35 also has an upper opening and is connected to the cleaning bin 14.

[0033] Reference Figure 2 and Figure 3A flushing pipe 321 and a drying pipe 341 are fixedly installed in the cleaning chamber 14 along the rotation direction of the installation shaft 21. A plurality of flushing nozzles 32 are fixedly installed on the flushing pipe 321, and a plurality of drying nozzles 34 are fixedly installed on the drying pipe 341. The flushing nozzles 32 are used to flush the filter screen 12 entering the cleaning chamber 14, and the drying nozzles 34 are used to dry the residual water on the filter screen 12 after flushing to prevent the water from diluting the cutting fluid.

[0034] Reference Figure 2 and Figure 3 A mounting box 8 is fixedly provided on the frame 1. The mounting box 8 is cylindrical. The mounting shaft 21 is located in the mounting box 8 and is coaxial with the mounting box 8. A driving mechanism 6 is provided in the mounting box 8 to drive the bracket 22 to rotate. The outer wall of the mounting box 8 and the inner wall of the cleaning bin 14 are connected to each other in a close fit. An annular groove 81 is coaxially provided on the outer wall of the mounting box 8. The annular groove 81 penetrates both the outer wall of the mounting box 8 and the inner wall of the cleaning bin 14. An annular baffle 82 is slidably installed in the annular groove 81. One end of the bracket 22 passes through the annular baffle 82 and is connected to the mounting shaft 21. The bracket 22 and the annular baffle 82 are rotatably matched. The bracket 22 drives the annular baffle 82 to slide through the annular baffle 82 to isolate the mounting box 8 from the cleaning bin 14.

[0035] Reference Figure 3 and Figure 4 The driving mechanism 6 includes an annular driving bar 61 fixedly mounted in the mounting box 8. The driving bar 61 is coaxial with the mounting shaft 21. Two arc-shaped racks 62 are integrally provided on the inner circle of the driving bar 61. The driving mechanism 6 also includes a switching gear 63 rotatably mounted on the mounting surface 214 of the mounting shaft 21. The switching gear 63 is transmission-connected to the bracket 22 through a bevel gear 64. The switching gear 63 meshes with the arc-shaped rack 62.

[0036] Reference Figure 3 and Figure 4 The mounting shaft 21 rotates clockwise. When the mounting shaft 21 drives the bracket 22 to rotate above the first waste bin 31, the switching gear 63 engages with one of the arc-shaped racks 62. The mounting shaft 21 continues to rotate, and the arc-shaped rack 62 drives the switching gear 63 to rotate, and then drives the bracket 22 to rotate through the bevel gear 64 to pour the waste on the filter screen 12 into the first waste bin 31.

[0037] Reference Figure 2 , Figure 3 and Figure 4After the flipping is completed, the installation shaft 21 continues to rotate to drive the filter 12 to the flushing nozzle 32, and the flushing nozzle 32 starts to backwash the filter 12. The second waste box 33 is located below the flushing nozzle 32 to receive the waste water after the flushing nozzle 32. With the rotation of the installation shaft 21, the filter 12 enters the working area of ​​the drying nozzle 34 after being flushed. The drying nozzle 34 starts to blow dry the filter 12. The drying box 35 is located below the drying nozzle 34 to receive the blown water. At this time, the switching gear 63 is meshed with the second arc-shaped rack 62. The switching gear rotates and drives the flip reset and continues to move until the previous filter 12 enters the filter barrel 11 area and starts working. This filter 12 is blown dry by the drying nozzle 34.

[0038] Reference Figure 2 , Figure 3 and Figure 4 A second pressure sensor 83 is fixedly installed at the flushing nozzle 32 and the drying nozzle 34 in the installation box 8, and a first pressure plate 84 and a second pressure plate 85 are respectively provided at the two pressure sensors. The installation box 8 is fixedly provided with support springs 86 for supporting the first pressure plate 84 and the second pressure plate 85.

[0039] Reference Figure 2 , Figure 3 and Figure 4 Four pressing blocks 213 corresponding to the bracket 22 are fixedly installed on the side wall of the mounting shaft 21. When the bracket 22 enters the working range of the flushing nozzle 32, the pressing blocks 213 corresponding to the bracket 22 press the first pressure plate 84 down and press against the second pressure sensor 83, and the flushing nozzle 32 is started. When the bracket 22 enters the working range of the drying nozzle, the pressing blocks 213 corresponding to the bracket 22 press the second pressure plate 85 down and press against the second pressure sensor 83, and the drying nozzle 34 is started.

[0040] When the clean filter screen 12 is aligned with the filter barrel 11, the abutting blocks 213 of the two brackets 22 are separated from the first pressing plate 84 and the second pressing plate 85 respectively, and the flushing nozzle 32 and the drying nozzle 34 stop.

[0041] Reference Figure 4 and Figure 5 The mounting shaft 21 is provided with a fixing assembly 7, which includes a bottom plate 212 fixedly mounted on the mounting surface 214 of the mounting shaft 21 and a fixing plate 71 slidably mounted on the bottom plate 212. The bottom plate 212 is horizontal, and the pressing block 213 is located on the bottom plate 212. The fixing plate 71 is fixedly connected with a fixing spring 72, one end of which is fixedly connected to the bottom plate 212, and the bracket 22 is penetrated with a fixing hole 221 that is slidably matched with one end of the fixing plate 71.

[0042] Reference Figure 4 and Figure 5 In normal conditions, the fixing spring 72 pushes the fixing plate 71 to slide and insert into the fixing hole 221 to fix the bracket 22 circumferentially. The fixing plate 71 is fixedly installed with a cylindrical first guide block 73. A second guide block 74 is fixedly installed at the two arc-shaped racks 62 on the driving bar 61. The second guide block 74 is provided with a guide slope 741 at both ends of the length direction of the driving bar 61. When the bracket 22 rotates to the point where the switching gear 63 is meshed with the arc-shaped rack 62, the second guide block 74 pushes the first guide block 73 through the guide slope 741. The guide block 73 slides, and then the fixing plate 71 is pushed out of the fixing hole 221 through the first guide block 73 to facilitate the subsequent rotation of the bracket 22. At the same time, during the rotation of the bracket 22, the first guide block 73 presses against the side wall of the second guide block 74 to keep the fixing plate 71 sliding out of the fixing hole 221. When the rotation of the bracket 22 is completed, the first guide block 73 is reset under the belt of the other guide slope 741 of the second guide block 74, and then the fixing plate 71 is reinserted into the fixing hole 221 to re-fix the bracket 22.

[0043] Reference Figure 6 Since some unfiltered cutting fluid will directly enter the filter barrel 11 when the filter 12 is switched, a filter 12 is also fixedly installed in the filter barrel 11 to filter the cutting fluid entering the filter barrel 11 during the replacement of the filter 12. Since the single use time of the filter 12 is short, it can be used for a long time without replacement, which does not violate the purpose of this application.

[0044] Reference Figure 3 and Figure 6 The isolation device 5 is located on the upper side of the filter barrel 11. The isolation device 5 includes an isolation frame 51 that is vertically slidably installed in the liquid inlet 141 of the cleaning chamber 14. The upper end of the isolation frame 51 exceeds the cleaning chamber 14 to guide the entry of the cutting fluid. The lower end of the isolation frame 51 is provided with a sealing strip 54 and fits tightly against the top wall of the bracket 22. The opening area of ​​the lower end of the isolation frame 51 is smaller than the opening area of ​​the upper end of the isolation frame 51. The inner hole section of the isolation frame 51 is funnel-shaped, so that the cutting fluid is located in the middle of the filter screen 12 when flowing down. The outer edge of the filter screen 12 is used as a buffer, so that the cutting fluid is not easy to flow out of the bracket 22 during filtering. At the same time, the bottom walls of the cleaning chambers 14 on both sides of the filter barrel 11 are inclined toward the first waste box 31 and the drying box 35 respectively, so that the cutting fluid dripping due to sputtering and when replacing the filter screen 12 will enter the first waste box 31 and the drying box 35 along the bottom wall of the cleaning chamber 14 respectively, to prevent the cutting fluid from accumulating in the cleaning chamber 14.

[0045] Reference Figure 3 and Figure 6When the bracket 22 rotates to the point where the filter screen 12 is opposite to the barrel opening of the filter barrel 11, the bracket 22 is mounted on the barrel opening of the filter barrel 11, and the bracket 22 is supported by the filter barrel 11, so that the bracket 22 is not easily deformed or damaged.

[0046] Reference Figure 2 and Figure 3 A fourth guide block 53 in the shape of an annular wave is integrally provided on the annular baffle 82, and a third guide block 52 in the shape of a cylinder is fixedly provided on the side wall of the isolation frame 51. When the filter 12 is in use, one end of the third guide block 52 presses against the trough of the fourth guide block 53. When the filter 12 is replaced, the third guide block 52 rises along the curved surface of the fourth guide block 53, thereby driving the isolation frame 51 to separate from the bracket 22, so that there is no conflict between the isolation frame 51 and the bracket 22 when the filter 12 is replaced. When the filter 12 is replaced, one end of the third guide block 52 presses against the trough of the fourth guide block 53 again.

[0047] The implementation principle of a cutting fluid recovery device for a machining center in an embodiment of the present application is as follows: the detection float 42 detects that the water level in the filter barrel 11 reaches the standard, and the start button 43 is pressed through the pressure block 44. The start button 43 starts the circulation pump 13 and the drive motor 231, and the installation shaft 21 rotates. The isolation frame 51 is raised through the cooperation of the third guide block 52 and the fourth guide block 53. When the next clean filter screen 12 is aligned with the filter barrel 11, the top block 211 presses against the first pressure sensor 15, and the drive motor 231 and the circulation pump 13 are stopped.

[0048] During the rotation of the bracket 22, the bracket 22 is driven to rotate by the cooperation between the switching gear 63 and the arc-shaped rack 62; the fixing plate 71 is driven to slide out of the fixing hole 221 by the cooperation between the first guide block 73 and the second guide block 74, so that the bracket 22 can rotate freely; through the cooperation between the clamping block 213 and the first pressure plate 84 and the second pressure plate 85, the two second pressure sensors 83 are pressed in turn to start the flushing nozzle 32 and the drying nozzle 34 to backwash and blow dry the filter 12.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cutting fluid recovery device for a machining center, characterized in that: include: A frame (1) is arranged at a cutting fluid outlet of a machining center; A filter barrel (11) is arranged on the frame (1) and is used to receive cutting fluid discharged from the machining center; A filter screen (12), which is provided in plurality and is used to filter the cutting fluid entering the filter barrel (11); A switching device (2), disposed on the frame (1), used to replace a clean filter screen (12) with a fully loaded filter screen (12); A cleaning chamber (14), arranged on the frame (1), connected to the side wall of the filter barrel (11), and used for accommodating the filter screen (12) with a full load; A cleaning device (3), disposed in the cleaning chamber (14), and used for cleaning the filter screen (12); A detection device (4) is used to detect the amount of waste debris on the filter screen (12) and to activate the switching device (2) and the cleaning device (3) according to the detection result; The isolation device (5) is used to isolate the filter barrel (11) and the cleaning chamber (14).

2. A cutting fluid recovery device for a machining center according to claim 1, characterized in that: The cleaning bin (14) is annular in shape, and the switching device (2) comprises: A mounting shaft (21) rotatably mounted on the frame (1) in a vertical position; Brackets (22) are arranged at intervals in the circumferential direction on the side wall of the mounting shaft (21) and are used for mounting the filter screen (12); A driving member (23), used for driving the mounting shaft (21) to rotate; The top wall of the cleaning bin (14) is penetrated by a liquid inlet (141); the upper end of the filter barrel (11) passes through the bottom wall of the cleaning bin (14) and is opposite to the liquid inlet (141); the used cutting fluid passes through the liquid inlet (141), is filtered by the filter screen (12), and then enters the filter barrel (11).

3. A cutting fluid recovery device for a machining center according to claim 2, characterized in that: The bracket (22) is rotatably connected to the side wall of the mounting shaft (21); the frame (1) is provided with a driving mechanism (6) for driving the bracket (22) to rotate; and the mounting shaft (21) is provided with a fixing assembly (7) for fixing the bracket (22); The cleaning device (3) comprises: A first waste box (31), arranged on the frame (1), connected to the cleaning bin (14), and used for receiving waste dropped from the filter screen (12) after the support (22) rotates; A flushing nozzle (32) is disposed in the cleaning chamber (14) and is used for reverse flushing and cleaning the filter screen (12); A second waste box (33) is provided on the frame (1), connected to the cleaning chamber (14), and is used to receive waste water flushed down by the flushing nozzle (32); A drying nozzle (34) is disposed in the cleaning chamber (14) and is used to dry the filter screen (12) after backwashing.

4. The cutting fluid recovery device for a machining center according to claim 1, characterized in that: The detection device (4) comprises: A connecting rod (41) rotatably mounted on the inner wall of the filter barrel (11); A detection float (42) is disposed at one end of the connecting rod (41) and is used to detect the water level in the filter barrel (11); A start button (43), disposed on the inner wall of the filter barrel (11), and used for starting the drive member (23); The pressing block (44) is arranged on the side wall of the connecting rod (41), and when the water level reaches a specified height, the starting button (43) is pressed tightly.

5. The cutting fluid recovery device for a machining center according to claim 2, characterized in that: The driving mechanism (6) comprises: A driving bar (61) in an annular shape, disposed on the frame (1) and coaxial with the mounting shaft (21), and having two arc-shaped racks (62) disposed thereon; A switching gear (63) is rotatably mounted on a side wall of the mounting shaft (21), and is transmission-connected to the bracket (22) via a bevel gear (64), and is used to mesh with the arc-shaped rack (62), and to drive the bracket (22) to flip before the bracket (22) enters the range of the flushing nozzle (32), and to drive the bracket (22) to flip and reset when the bracket (22) enters the range of the dry and miscellaneous nozzle.

6. A cutting fluid recovery device for a machining center according to claim 5, characterized in that: The fixing assembly (7) comprises: A fixing plate (71) is slidably mounted on a side wall of the mounting shaft (21), and the bracket (22) is provided with a fixing hole (221) slidably matched with the fixing plate (71); A fixing spring (72), used for pushing the fixing plate (71) to be inserted into the fixing hole (221); A first guide block (73) provided on the fixing plate (71); The second guide block (74) is arranged on the driving bar (61) and is used to cooperate with the first guide block (73) to drive the fixing plate (71) to slide out of the fixing hole (221) during the rotation of the bracket (22).

7. The cutting fluid recovery device for a machining center according to claim 1, characterized in that: The isolation device (5) comprises: An isolation frame (51) is vertically slidably mounted in the cleaning chamber (14) and is used to isolate the space at the liquid inlet (141) from the remaining space in the cleaning chamber (14); A third guide block (52), provided on the isolation frame (51); A fourth guide block (53) is arranged on the mounting shaft (21), and cooperates with the third guide block (52) to push the isolation plate upward as the mounting shaft (21) rotates, and keeps the isolation plate in an open state during the switching process of the filter plates.

8. The cutting fluid recovery device for a machining center according to claim 6, characterized in that: The frame (1) is provided with an annular installation box (8), the driving mechanism (6) and the fixing assembly (7) are both located in the installation box (8), the cleaning chamber (14) is connected to the installation box (8), a side wall of the installation box (8) connected to the cleaning chamber (14) is penetrated by an annular groove (81), the annular groove (81) penetrates the cleaning chamber (14), an annular baffle (82) is slidably installed in the annular groove (81), one end of the bracket (22) passes through the annular baffle (82) and is rotatably sealed with the annular baffle (82), and the fourth guide block (53) is arranged on the annular baffle (82).

9. The cutting fluid recovery device for a machining center according to claim 2, characterized in that: A filter screen (12) is also provided in the filter barrel (11).

10. The cutting fluid recovery device for a machining center according to claim 2, characterized in that: The mounting shaft (21) is provided with a plurality of top blocks (211) at intervals around its axis in the circumferential direction. The top blocks (211) correspond to the brackets (22) one by one. The frame (1) has a first pressure sensor (15). When the mounting shaft (21) rotates until the filter screen (12) is opposite to the filter barrel (11), the top blocks (211) press against the first pressure sensor (15), and the mounting shaft (21) stops rotating. Two second pressure sensors (83) are provided in the mounting box (8). The two pressure sensors are provided with a first pressure plate (84) and a second pressure plate (85), respectively. The mounting box (8) is provided with a support spring (86) for supporting the first pressure sensor (15). A pressure plate (84) and a second pressure plate (85), a side wall of the mounting shaft (21) is provided with a plurality of pressing blocks (213) corresponding to the bracket (22); when the bracket (22) enters the working range of the flushing nozzle (32), the pressing blocks (213) corresponding to the bracket (22) press the first pressure plate (84) down to press against the second pressure sensor (83), and the flushing nozzle (32) is started; when the bracket (22) enters the working range of the drying nozzle (34), the pressing blocks (213) corresponding to the bracket (22) press the second pressure plate (85) down to press against the second pressure sensor (83), and the drying nozzle (34) is started.

Images