Anti-splashing device for metal chips in CNC machine tool

The device addresses chip clogging and filter issues in CNC machine tools by using a screw rod and rake mechanism for chip separation and a scraper system for filter cleaning, enhancing operational efficiency.

CN222269505UActive Publication Date: 2024-12-31SUZHOU JIUGE PRECISION MACHINERY CO LTD
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Patent Information

Application Number
CN202420489405.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-14
Publication Date
2024-12-31
Estimated Expiration
2034-03-14

AI Technical Summary

Technical Problem

Existing CNC machine tools face issues with metal chip accumulation blocking mesh holes in waste chip collection frames, affecting separation of metal chips and cutting fluid, and filters getting clogged due to debris, hindering cutting fluid recovery.

Method used

A device with a waste chip collection frame mechanism using screw rods and rakes to prevent chip clogging, combined with a scraper system to clean filters, ensuring effective separation and recovery of metal chips and cutting fluid.

Benefits of technology

Prevents metal chip splashing and improves separation of chips and fluid, maintaining efficient operation by preventing clogging and ensuring effective cutting fluid recovery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-splashing device for metal chips in a CNC machine tool, and relates to the technical field of machine tools. The device comprises a machine tool body and a movable door, the movable door is installed on the front side of the machine tool body, a function chamber is formed in the machine tool body, a liquid storage tank is arranged in the function chamber, and a liquid inlet pipe is installed at the top of the liquid storage tank. According to the anti-splashing device for the metal chips in the CNC machine tool, the output end of a first driving motor drives a rotating rod to rotate, a third chain wheel and a second chain wheel are in transmission through a chain, the second chain wheel drives one of first lead screws to rotate, and the two first chain wheels are in transmission through a chain, so that synchronous rotation of the two first lead screws is achieved; the two first lead screws are both connected with the raking rake through nut pairs, the raking rake can move in a reciprocating mode at the bottom end of the interior of the waste chip collecting frame, the situation that the waste chip collecting frame is blocked by metal chips can be avoided, and the separation effect of the metal chips and cutting fluid is improved.
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Description

Technical Field

[0001] The utility model relates to a metal chip anti-splashing device, in particular to a metal chip anti-splashing device inside a CNC machine tool, and belongs to the technical field of machine tools. Background Art

[0002] A machine tool refers to a machine that manufactures machines, also known as a mother machine or machine tool, and is usually referred to as a machine tool. It is generally divided into metal cutting machine tools, forging machine tools, and woodworking machine tools. There are many methods for processing mechanical parts in modern machinery manufacturing: in addition to cutting, there are casting, forging, welding, stamping, extrusion, etc. However, all parts with high precision requirements and fine surface roughness requirements generally need to be finally processed on machine tools using cutting methods.

[0003] The utility model discloses a cutting machine tool metal chip splash prevention device, which includes a machine tool body and a control switch, wherein the right side of the front of the machine tool body is fixedly connected to the back of the control switch. The utility model relates to the technical field of cutting machine tools. The cutting machine tool metal chip splash prevention device is fixedly connected to an annular plate through a mounting block on the left side of the inner wall of the working chamber, and a fan-shaped nozzle is fixedly connected to the inner wall of the annular plate.

[0004] Although there are many benefits in the above scheme, there are also the following disadvantages: 1. The metal chips are filtered and retained by the waste chip collection frame, and the cutting fluid flows into the bottom of the collection tank. However, when too much metal chips accumulate in the waste chip collection frame, the mesh holes on the waste chip collection frame may be blocked, thereby affecting the separation of metal chips and cutting fluid; 2. Turn on the working switch of the first water pump, and the cutting fluid in the collection tank is filtered and recovered into the liquid storage tank through the joint action of the first pumping pipe, the first water outlet pipe and the filter in the first pumping pipe. However, since the filter does not have a cleaning effect, some of the debris entering the collection tank may block the filter, thereby affecting the recovery of the cutting fluid. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a device for preventing metal chips from splashing inside a CNC machine tool in order to solve the above-mentioned problems, so as to solve the problems in the prior art that: 1. the metal chips are filtered and retained by a waste chip collection frame, and the cutting fluid flows into the bottom of the collection tank. However, when too much metal chips accumulate in the waste chip collection frame, the mesh holes on the waste chip collection frame may be blocked, thereby affecting the separation of metal chips and cutting fluid; 2. the working switch of the first water pump is turned on, and the cutting fluid in the collection tank is filtered and recovered into the liquid storage tank through the joint action of the first pumping pipe, the first water outlet pipe and the filter in the first pumping pipe. However, since the filter does not have a cleaning effect, some of the debris entering the collection tank may block the filter, thereby affecting the recovery of the cutting fluid.

[0007] (II) Technical solution

[0008] The utility model is realized by the following technical scheme: a device for preventing metal chips from splashing inside a CNC machine tool comprises a machine tool body and a movable door, wherein the movable door is installed on the front side of the machine tool body, a function chamber is provided inside the machine tool body, a liquid storage tank is provided inside the function chamber, a liquid inlet pipe is installed on the top of the liquid storage tank, one end of the liquid inlet pipe passes through the inside of the function chamber and extends to the outside of the machine tool body, the liquid inlet pipe is fixedly connected to the machine tool body, a fan-shaped nozzle assembly is arranged on the top of the liquid storage tank, a through hole is provided at the bottom end of the machine tool body, a collecting groove is formed at the bottom of the through hole, a waste chip collecting frame is arranged inside the collecting groove, and the waste chip collecting frame is arranged inside the collecting groove. Two first screw rods are provided on the top of the chip collection frame, and the two first screw rods are both arranged inside the through hole. A rake and a connecting plate are provided between the two first screw rods, and the connecting plate is arranged on one side of the rake. One end of the two first screw rods passes through the rake and the connecting plate in sequence, and the first screw rod is connected to the rake through a nut pair, and the first screw rod is rotatably connected to the connecting plate. The outer sides of the two first screw rods are fixedly connected with first sprockets, and the two first sprockets are connected by chain transmission, a driving assembly is provided on the outer side of one of the first screw rods, and a lifting assembly is provided on the outer side of the connecting plate, and a pumping assembly is provided at the bottom of the waste chip collection frame.

[0009] Preferably, an elongated groove is provided on the front side of the machine tool body, the elongated groove is communicated with the collecting groove, slide grooves are formed on both sides of the collecting groove, and slide rods are fixedly connected on both sides of the waste chip collection frame. The two slide rods are arranged inside the two slide grooves and in sliding contact with the machine tool body.

[0010] Preferably, a movable plate is fixedly connected to the front side of the waste chip collection frame, and a U-shaped handle is fixedly connected to the front side of the movable plate. Rotating blocks are provided on both sides of the movable plate, and the two rotating blocks are rotatably connected to the front side of the machine tool body. The two rotating blocks are in contact with the movable plate and the U-shaped handle. The setting of the two rotating blocks can improve the stability of the waste chip collection frame placed inside the collection trough.

[0011] Preferably, the driving assembly includes a second sprocket, the second sprocket is fixedly connected to one end of the first screw rod, a third sprocket is provided on the outer side of the second sprocket, the second sprocket and the third sprocket are connected by a chain transmission, and a rotating rod is fixedly connected to the outer side of the third sprocket.

[0012] Preferably, the lifting assembly includes two L-shaped plates, both of which are fixedly connected to both sides of the connecting plate, one end of the rotating rod passes through one of the L-shaped plates and is rotatably connected to one of the L-shaped plates, a first driving motor is fixedly connected to the outer side of one of the L-shaped plates, and the output end of the first driving motor is fixedly connected to the rotating rod.

[0013] Preferably, the lifting assembly also includes two second screw rods, which are both arranged on the outside of the two L-shaped plates, and are rotatably connected to the machine tool body. The two L-shaped plates are connected to the outside of the two second screw rods through a nut pair, and two forward and reverse motors are fixedly connected to one side of the inside of the machine tool body, and the output ends of the two forward and reverse motors are respectively fixedly connected to the two second screw rods.

[0014] Preferably, the pumping assembly includes a pumping pipe, which is arranged inside the collecting tank, one end of the pumping pipe passes through the inner side of the collecting tank and extends to the inside of the functional chamber, the pumping pipe is fixedly connected to the machine tool body, and a filter screen is installed inside the other end of the pumping pipe, and a rotating rod is provided at the bottom end of the pumping pipe, the rotating rod is rotatably connected to the machine tool body, a scraper is fixedly connected to the outside of the rotating rod, and the scraper contacts the filter screen, a first bevel gear is fixedly connected to the outside of the rotating rod, and a second bevel gear is meshedly connected to the outside of the first bevel gear, one end of the second bevel gear is fixedly connected to a connecting rod, one end of the connecting rod passes through one side of the collecting tank and extends to the inside of the functional chamber, the connecting rod is rotatably connected to the machine tool body, and a second drive motor is provided at the bottom end of the inside of the functional chamber, the second drive motor is fixedly connected to the machine tool body, and the output end of the second drive motor is fixedly connected to the connecting rod.

[0015] Preferably, the pumping assembly also includes a water pump, which is arranged inside the functional room and fixedly connected to the machine tool body, the pumping pipe is installed at the input end of the water pump, and a water outlet pipe is installed at the output end of the pumping pipe. A fixed plate is fixedly connected to the outside of the water outlet pipe, and the fixed plate is fixedly connected to the machine tool body. The liquid storage tank is fixedly connected to the top of the fixed plate, and the water outlet pipe is fixedly connected to the liquid storage tank. The setting of the fixed plate serves as a fixed support for the liquid storage tank.

[0016] The utility model provides a device for preventing metal chips from splashing inside a CNC machine tool, which has the following beneficial effects:

[0017] 1. The metal chip anti-splashing device inside the CNC machine tool, the output end of the first drive motor drives the rotating rod to rotate, the third sprocket and the second sprocket are driven by a chain, the second sprocket drives one of the first screw rods to rotate, and the two first sprockets are driven by a chain, so that the two first screw rods can rotate synchronously, and the two first screw rods are connected to the rake through a nut pair, and the rake can reciprocate at the bottom end of the waste chip collection frame, which can prevent the metal chips from clogging the waste chip collection frame and improve the separation effect of metal chips and cutting fluid.

[0018] 2. The CNC machine tool has an internal metal chip anti-splash device. The output end of the second drive motor drives the connecting rod to rotate. The second bevel gear is meshed and connected with the first bevel gear. The rotating rod drives the scraper to rotate. The scraper can be used to clean the filter to prevent some metal chips from clogging the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the machine tool body of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0022] Figure 4 It is a schematic diagram of the rake structure of the utility model.

[0023]

Main component symbol description

[0024] 1. Machine tool body; 2. Movable door; 3. Through hole; 4. Collecting trough; 5. Waste chip collecting frame; 6. First screw rod; 7. Rake; 8. First sprocket; 9. Connecting plate; 10. L-shaped plate; 11. Second screw rod; 12. Second sprocket; 13. Third sprocket; 14. Functional chamber; 15. Liquid storage tank; 16. Fan-shaped nozzle assembly; 17. Fixed plate; 18. Water pump; 19. Water outlet pipe; 20. Suction pipe; 21. Rotating rod; 22. Scraper; 23. First bevel gear; 24. Second bevel gear; 25. Connecting rod; 26. Movable plate; 27. Rotating block. DETAILED DESCRIPTION

[0025] The embodiment of the utility model provides a device for preventing metal chips from splashing inside a CNC machine tool.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, including a machine tool body 1 and a movable door 2, the movable door 2 is installed on the front side of the machine tool body 1, a function chamber 14 is opened inside the machine tool body 1, a liquid storage tank 15 is arranged inside the function chamber 14, a liquid inlet pipe is installed on the top of the liquid storage tank 15, one end of the liquid inlet pipe passes through the inner side of the function chamber 14 and extends to the outside of the machine tool body 1, the liquid inlet pipe is fixedly connected to the machine tool body 1, a fan-shaped nozzle assembly 16 is arranged on the top of the liquid storage tank 15, a through hole 3 is opened at the bottom end of the machine tool body 1, a collecting groove 4 is formed at the bottom of the through hole 3, a waste chip collection frame 5 is arranged inside the collecting groove 4, a long groove is opened on the front side of the machine tool body 1, the long groove is communicated with the collecting groove 4, slide grooves are formed on both sides of the collecting groove 4, slide rods are fixedly connected to both sides of the waste chip collection frame 5, the two slide rods are arranged inside the two slide grooves and slide in contact with the machine tool body 1, a movable plate 26 is fixedly connected to the front side of the waste chip collection frame 5, and the movable A U-shaped handle is fixedly connected to the front side of the movable plate 26, and rotating blocks 27 are provided on both sides of the movable plate 26. The two rotating blocks 27 are rotatably connected to the front side of the machine tool body 1, and the two rotating blocks 27 are in contact with the movable plate 26 and the U-shaped handle. Two first screw rods 6 are provided on the top of the waste chip collection frame 5, and the two first screw rods 6 are arranged inside the through hole 3. A rake 7 and a connecting plate 9 are provided between the two first screw rods 6. The connecting plate 9 is arranged on one side of the rake 7. One end of the two first screw rods 6 passes through the rake 7 and the connecting plate 9 in turn. The first screw rod 6 is connected to the rake 7 through a nut pair, and the first screw rod 6 is rotatably connected to the connecting plate 9. The outer sides of the two first screw rods 6 are fixedly connected to the first sprockets 8, and the two first sprockets 8 are connected by chain transmission. A driving assembly is provided on the outer side of one of the first screw rods 6, and a lifting assembly is provided on the outer side of the connecting plate 9. A pumping assembly is provided at the bottom of the waste chip collection frame 5.

[0027] The driving assembly includes a second sprocket 12, which is fixedly connected to one end of the first screw rod 6. A third sprocket 13 is provided on the outer side of the second sprocket 12. The second sprocket 12 and the third sprocket 13 are connected by chain transmission. A rotating rod is fixedly connected to the outer side of the third sprocket 13. The lifting assembly includes two L-shaped plates 10. The two L-shaped plates 10 are fixedly connected to both sides of the connecting plate 9. One end of the rotating rod passes through one of the L-shaped plates 10 and is rotatably connected to one of the L-shaped plates 10. A first driving motor is fixedly connected to the outer side of one of the L-shaped plates 10. The output end of the first driving motor is fixedly connected to the rotating rod. The lifting assembly also includes two second screw rods 11. The two second screw rods 11 are both arranged on the outer sides of the two L-shaped plates 10. The two second screw rods 11 are rotatably connected to the machine tool body 1. The two L-shaped plates 10 are connected to the outer sides of the two second screw rods 11 through a nut pair. Two forward and reverse motors are fixedly connected to one side of the inside of the machine tool body 1, and the output ends of the two forward and reverse motors are respectively fixedly connected to the two second screw rods 11.

[0028] Specifically, by setting the fan-shaped nozzle assembly 16, splashing of metal cutting waste can be effectively avoided, and the cutting fluid mixed with metal chips flows into the collecting tank 4 from the through hole 3, and the metal chips and the cutting fluid are separated and filtered through the waste chip collection frame 5.

[0029] By starting the two forward and reverse motors, the models of the two forward and reverse motors are not specifically limited, and the adapter equipment shall prevail. The output ends of the two forward and reverse motors drive the two second screw rods 11 to rotate forwardly. The two second screw rods 11 are connected to the two L-shaped plates 10 through nut pairs. The two L-shaped plates 10 drive the connecting plate 9 to move downward, and drive the two first screw rods 6 and the rake 7 to move downward through the connecting plate 9, and adjust the rake 7 to a position in contact with the mesh holes opened at the bottom end of the waste collection frame 5;

[0030] Then start the first drive motor. There is no specific limitation on the model of the first drive motor, which shall be based on the adapted equipment. The output end of the first drive motor drives the rotating rod to rotate. The third sprocket 13 and the second sprocket 12 are driven by a chain. The second sprocket 12 drives one of the first screw rods 6 to rotate. The two first sprockets 8 are driven by a chain, thereby realizing the synchronous rotation of the two first screw rods 6. The two first screw rods 6 are connected to the rake 7 by a nut pair. The rake 7 can reciprocate at the bottom end of the waste collection frame 5 to prevent metal chips from clogging the waste collection frame 5, thereby improving the separation effect of metal chips and cutting fluid.

[0031] When the waste chip collection frame 5 needs to be taken out, the two forward and reverse motors are started, and the output ends of the two forward and reverse motors drive the two second screw rods 11 to rotate in the opposite direction, thereby realizing the movement of the rake 7 upward and away from the waste chip collection frame 5, resetting the rake 7, and then rotating the two rotating blocks 27, the two rotating blocks 27 are away from the U-shaped handle, and then the U-shaped handle is pulled to take out the waste chip collection frame 5.

[0032] See also Figure 2 and Figure 3The pumping assembly includes a pumping pipe 20, which is arranged inside the collecting tank 4. One end of the pumping pipe 20 passes through the inner side of the collecting tank 4 and extends to the inside of the functional chamber 14. The pumping pipe 20 is fixedly connected to the machine tool body 1. A filter screen is installed inside the other end of the pumping pipe 20. A rotating rod 21 is provided at the bottom of the pumping pipe 20. The rotating rod 21 is rotatably connected to the machine tool body 1. A scraper 22 is fixedly connected to the outer side of the rotating rod 21. The scraper 22 contacts the filter screen. A first bevel gear 23 is fixedly connected to the outer side of the rotating rod 21. A second bevel gear 24 is meshedly connected to the outer side of the first bevel gear 23. A connecting rod 25 is fixedly connected to one end of the second bevel gear 24. One end of the connecting rod 25 passes through one side of the collecting tank 4 And it extends to the inside of the functional chamber 14, the connecting rod 25 is rotatably connected to the machine tool body 1, a second drive motor is provided at the bottom end of the functional chamber 14, the second drive motor is fixedly connected to the machine tool body 1, and the output end of the second drive motor is fixedly connected to the connecting rod 25. The pumping assembly also includes a water pump 18, the water pump 18 is arranged inside the functional chamber 14 and is fixedly connected to the machine tool body 1, a pumping pipe 20 is installed at the input end of the water pump 18, and an outlet pipe 19 is installed at the output end of the pumping pipe 20. A fixed plate 17 is fixedly connected to the outside of the outlet pipe 19, and the fixed plate 17 is fixedly connected to the machine tool body 1. The liquid storage tank 15 is fixedly connected to the top of the fixed plate 17, and the outlet pipe 19 is fixedly connected to the liquid storage tank 15.

[0033] Specifically, when the cutting fluid in the collection tank 4 is extracted through the suction pipe 20, the second drive motor is started at this time. The model of the second drive motor is not specifically limited and is subject to the adapter equipment. The output end of the second drive motor drives the connecting rod 25 to rotate, and the second bevel gear 24 is meshed and connected with the first bevel gear 23. The rotating rod 21 drives the scraper 22 to rotate. The scraper 22 can be used to clean the filter screen to prevent some metal chips from clogging the filter screen.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for preventing metal chips from splashing inside a CNC machine tool, comprising a machine tool body (1) and a movable door (2), characterized in that: The movable door (2) is installed on the front side of the machine tool body (1). A function chamber (14) is provided inside the machine tool body (1). A liquid storage tank (15) is provided inside the function chamber (14). A liquid inlet pipe is installed on the top of the liquid storage tank (15). One end of the liquid inlet pipe passes through the inside of the function chamber (14) and extends to the outside of the machine tool body (1). The liquid inlet pipe is fixedly connected to the machine tool body (1). A fan-shaped nozzle assembly (16) is provided on the top of the liquid storage tank (15). A through hole (3) is provided at the bottom end of the machine tool body (1). A collecting trough (4) is formed at the bottom of the through hole (3). A waste chip collection frame (5) is provided inside the collecting trough (4). Two first screw rods (6) are provided on the top of the waste chip collection frame (5). The two first screw rods (6) are provided on the top of the waste chip collection frame (5). The first screw rods (6) are all arranged inside the through hole (3), a rake (7) and a connecting plate (9) are arranged between the two first screw rods (6), the connecting plate (9) is arranged on one side of the rake (7), one end of the two first screw rods (6) passes through the rake (7) and the connecting plate (9) in sequence, the first screw rod (6) and the rake (7) are connected by a nut pair, the first screw rod (6) and the connecting plate (9) are rotatably connected, the outer sides of the two first screw rods (6) are fixedly connected with a first sprocket (8), the two first sprockets (8) are connected by a chain transmission, a driving component is arranged on the outer side of one of the first screw rods (6), a lifting component is arranged on the outer side of the connecting plate (9), and a pumping component is arranged at the bottom of the waste collecting frame (5).

2. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 1, characterized in that: The front side of the machine tool body (1) is provided with an elongated groove, the elongated groove is communicated with the collecting groove (4), both sides of the collecting groove (4) are formed with sliding grooves, both sides of the waste chip collecting frame (5) are fixedly connected with sliding rods, and the two sliding rods are arranged inside the two sliding grooves and in sliding contact with the machine tool body (1).

3. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 1, characterized in that: A movable plate (26) is fixedly connected to the front side of the waste chip collection frame (5), a U-shaped handle is fixedly connected to the front side of the movable plate (26), rotating blocks (27) are provided on both sides of the movable plate (26), the two rotating blocks (27) are rotatably connected to the front side of the machine tool body (1), and the two rotating blocks (27) are in contact with the movable plate (26) and the U-shaped handle.

4. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 1, characterized in that: The driving assembly comprises a second sprocket (12), the second sprocket (12) is fixedly connected to one end of the first screw rod (6), a third sprocket (13) is arranged outside the second sprocket (12), the second sprocket (12) and the third sprocket (13) are connected via a chain transmission, and a rotating rod is fixedly connected to the outside of the third sprocket (13).

5. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 4, characterized in that: The lifting assembly comprises two L-shaped plates (10), the two L-shaped plates (10) are fixedly connected to both sides of the connecting plate (9), one end of the rotating rod passes through one of the L-shaped plates (10) and is rotatably connected to one of the L-shaped plates (10), a first driving motor is fixedly connected to the outer side of one of the L-shaped plates (10), and an output end of the first driving motor is fixedly connected to the rotating rod.

6. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 5, characterized in that: The lifting assembly further comprises two second screw rods (11), the two second screw rods (11) are both arranged outside the two L-shaped plates (10), the two second screw rods (11) are both rotatably connected to the machine tool body (1), the two L-shaped plates (10) are both connected to the outsides of the two second screw rods (11) through nut pairs, one side of the inside of the machine tool body (1) is fixedly connected to two forward and reverse motors, and the output ends of the two forward and reverse motors are respectively fixedly connected to the two second screw rods (11).

7. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 1, characterized in that: The pumping assembly comprises a pumping pipe (20), the pumping pipe (20) being arranged inside the collecting tank (4), one end of the pumping pipe (20) passing through the inside of the collecting tank (4) and extending into the inside of the functional chamber (14), the pumping pipe (20) being fixedly connected to the machine tool body (1), a filter screen being installed inside the other end of the pumping pipe (20), a rotating rod (21) being provided at the bottom end of the pumping pipe (20), the rotating rod (21) being rotatably connected to the machine tool body (1), a scraper (22) being fixedly connected to the outside of the rotating rod (21), the scraper (22) being in contact with the filter screen, and the rotating rod A first bevel gear (23) is fixedly connected to the outside of the first bevel gear (21); a second bevel gear (24) is meshedly connected to the outside of the first bevel gear (23); a connecting rod (25) is fixedly connected to one end of the second bevel gear (24); one end of the connecting rod (25) passes through one side of the collecting trough (4) and extends into the inside of the functional chamber (14); the connecting rod (25) is rotatably connected to the machine tool body (1); a second drive motor is provided at the bottom end of the inside of the functional chamber (14); the second drive motor is fixedly connected to the machine tool body (1); and the output end of the second drive motor is fixedly connected to the connecting rod (25).

8. The device for preventing metal chips from splashing inside a CNC machine tool according to claim 7, characterized in that: The pumping assembly further comprises a water pump (18), the water pump (18) being arranged inside the function chamber (14) and fixedly connected to the machine tool body (1), the water pumping pipe (20) being installed at the input end of the water pump (18), the output end of the water pumping pipe (20) being installed with a water outlet pipe (19), the outer side of the water outlet pipe (19) being fixedly connected with a fixing plate (17), the fixing plate (17) being fixedly connected to the machine tool body (1), the liquid storage tank (15) being fixedly connected to the top of the fixing plate (17), and the water outlet pipe (19) being fixedly connected to the liquid storage tank (15).