A chip cleaning device for a numerically controlled milling machine

Abstract

This application relates to a chip cleaning device for a numerically controlled milling machine, and relates to the technical field of chip cleaning for numerically controlled milling machine processing equipment. It includes a frame, a chip collection box, a chip scraping plate, a driving component, and a screw conveyor; the chip collection box is arranged on the frame and is located on one side of the numerically controlled milling machine; the bottom surface of the chip collection box is inclined, and a chip discharge port is opened at the bottom of the bottom surface of the chip collection box; the chip scraping plate is arranged vertically, and the bottom surface of the chip scraping plate is also inclined, and the inclination angle is the same as that of the bottom surface of the chip collection box. The bottom surface of the chip scraping plate is in contact with the bottom surface of the chip collection box, and the chip scraping plate can slide on the bottom surface of the chip collection box; the driving component is arranged on one side of the chip collection box and is used to drive the chip scraping plate to slide; the screw conveyor is arranged below the chip discharge port and is used to receive and transport chips. This application can effectively collect and clean the chips generated by the numerically controlled milling machine.

Description

Technical Field

[0001] This application relates to the technical field of chip cleaning for CNC milling machines, and particularly to a chip cleaning device for CNC milling machines. Background Art

[0002] CNC milling machines are widely used in the field of precision machining. Their high efficiency and precision make them occupy an important position in the manufacturing industry. However, during long-term use, a large amount of metal chips generated by the machine tool will not only affect the machining accuracy but also cause damage to the equipment. Therefore, it is particularly important to remove these chips in a timely and effective manner.

[0003] Existing chip cleaning devices for CNC milling machines include a collection box and a conveyor belt. The collection box is arranged on one side of the CNC milling machine, and the conveyor belt is arranged below the collection box. A chip dropping port is opened at the bottom of the collection box. During cleaning, it is necessary to manually move the chips to the chip dropping port, and then the chips fall onto the conveyor belt for transportation and manual cleaning and conveyor belt conveying. Although manual cleaning is simple and easy to implement, it has low efficiency and high labor intensity, and cannot meet the requirements of modern industrial production. However, the conveyor belt conveying device still has some limitations in practical applications.

[0004] Although the conveyor belt conveying device solves the problem of chip cleaning for CNC milling machines to a certain extent, there are still some deficiencies. The conveyor belt conveying device is prone to chip scattering during the cleaning process and is difficult to completely collect, resulting in environmental pollution and resource waste. Summary of the Invention

[0005] In order to improve the problems of manual cleaning of metal chips and easy chip scattering during conveyor belt transportation, this application provides a chip cleaning device for CNC milling machines.

[0006] A chip cleaning device for CNC milling machines provided by this application adopts the following technical solutions:

[0007] A chip cleaning device for CNC milling machines includes a frame, a chip collection box, a chip scraping plate, a driving component, and a screw conveyor; the chip collection box is arranged on the frame and is located on one side of the CNC milling machine. The chip collection box has an open top structure, and the side of the chip collection box close to the CNC milling machine is also open; the bottom surface of the chip collection box is inclined, and a chip discharge port is opened at the bottom of the bottom surface of the chip collection box; the chip scraping plate is arranged vertically, the bottom surface of the chip scraping plate is also inclined, and the inclination angle is the same as that of the bottom surface of the chip collection box. The bottom surface of the chip scraping plate abuts against the bottom surface of the chip collection box, and the chip scraping plate can slide on the bottom surface of the chip collection box;

[0008] The driving assembly includes an electric telescopic rod and a push plate; the electric telescopic rod is horizontally arranged and located on the side of the chip collecting box away from the chip discharging port outside the chip collecting box; the electric telescopic rod is a multi-stage electric telescopic rod, the fixed end of the electric telescopic rod is fixedly arranged on the machine frame, and the movable end of the electric telescopic rod is fixedly connected with the push plate; the push plate is horizontally arranged, and the side of the push plate away from the electric telescopic rod is slidably connected with the chip scraping plate in the vertical direction; a sliding opening is formed on one side of the chip collecting box close to the electric telescopic rod, the size of the sliding opening is adapted to the size of the push plate, and the push plate can slide in the sliding opening;

[0009] The screw conveyor is arranged below the chip collecting box, a chip inlet cylinder is fixedly arranged on one side of the screw conveyor, a chip inlet is formed on the chip inlet cylinder, a chip outlet cylinder is fixedly arranged on the side of the screw conveyor away from the chip inlet cylinder, and a chip dropping port is formed at the bottom of the chip outlet cylinder.

[0010] By adopting the above technical solutions, the chips generated by the CNC milling machine can be effectively collected and cleaned. Specifically, the design of the top opening and one-side opening of the chip collecting box enables the chips to smoothly enter the interior of the chip collecting box, and the inclined bottom surface helps the chips to concentrate towards the chip discharging port. The design of the chip scraping plate enables it to slide along the bottom surface of the chip collecting box, effectively pushing the chips towards the chip discharging port; the bottom surface of the chip scraping plate is closely attached to the bottom surface of the chip collecting box, ensuring that the chips will not stay between the two, further improving the cleaning effect. The driving assembly composed of the electric telescopic rod and the push plate enables the chip scraping plate to move between the chip discharging port and the side wall of the chip collecting box under the action of the electric telescopic rod and the push plate, so that the chip scraping plate can concentrate the chips at the bottom of the chip collecting box to the chip discharging port. The setting of the screw conveyor further improves the processing efficiency of the chips, ensuring that the chips can be smoothly transported to the designated position. During the transportation of the metal chips by the screw conveyor, it is difficult for the metal chips to fall off from the screw conveyor and cause secondary scattering, improving the defect that the traditional cleaning device uses a conveyor belt to transport metal chips and is easy to scatter to both sides and requires secondary cleaning. Generally speaking, this device significantly improves the cleanliness of the working environment of the CNC milling machine, reduces the labor intensity of manual cleaning, and improves the production efficiency.

[0011] Optionally, a limiting plate is fixedly arranged on the side of the chip scraping plate close to the electric telescopic rod, the limiting plate is vertically arranged and there are two of them, the cross sections of the two limiting plates are both L-shaped, and a limiting groove is formed between the sides of the two limiting plates close to each other and the chip scraping plate; a limiting block is fixedly connected to both sides of the push plate, the size of the limiting block is adapted to the size of the limiting groove, and the limiting block is slidably arranged in the limiting groove in the vertical direction.

[0012] By adopting the above technical solution, the design of the limiting plate and the limiting groove can limit the scraping plate in a vertical state. When the electric telescopic rod pushes the pushing plate to move, the pushing plate can drive the scraping plate to move towards the direction close to the chip discharge port, and can move obliquely along the bottom surface of the chip collecting box, so as to achieve the effect that the scraping plate can not only move horizontally under the action of the pushing plate, but also move along the inclined direction of the bottom surface of the chip collecting box, making the pushing plate more stable when pushing the scraping plate, and avoiding the problem of incomplete chip scraping caused by the looseness between the pushing plate and the scraping plate. At the same time, the cooperation between the limiting block and the limiting groove can effectively prevent the pushing plate from shifting or falling off during the sliding process, improving the reliability and safety of the whole device.

[0013] Optionally, a communication port is provided on the scraping plate, and the size of the communication port is adapted to the size of the pushing plate and also to the size of the limiting block; when the scraping plate moves above the chip discharge port and close to the side of the electric telescopic rod, the pushing plate and the limiting block are opposite to the communication port in the horizontal direction; when the pushing plate and the limiting block are aligned with the communication port, the pushing plate and the limiting block can slide horizontally in the communication port.

[0014] By adopting the above technical solution, the communication port on the scraping plate is adapted to the sizes of the pushing plate and the limiting block, ensuring that when the scraping plate moves above the chip discharge port and close to the side of the electric telescopic rod, the pushing plate and the limiting block can smoothly enter the communication port and slide therein. When the scraping plate moves above the chip discharge port and close to the side of the electric telescopic rod, at this time, the chips at the bottom of the chip collecting box are concentrated on the side of the scraping plate far from the pushing plate and are located above the chip discharge port, and the pushing plate and the limiting block are aligned with the communication port. Then the electric telescopic rod continues to extend. At this time, the scraping plate does not move, and the pushing plate and the limiting block continue to move in the direction away from the electric telescopic rod under the action of the electric telescopic rod and move above the chip discharge port.

[0015] Optionally, a number of air blowers are provided on the pushing plate.

[0016] By adopting the above technical solution, when the pushing plate moves above the chip discharge port, an air flow can be generated under the action of a number of air blowers on the pushing plate to help push and disperse the chips, so that the chips fall from the chip discharge port, improving the chip collection efficiency and reducing the possibility of chips adhering to the pushing plate or the scraping plate, thereby further enhancing the working performance and cleaning effect of the whole chip cleaning device of the CNC milling machine.

[0017] Optionally, a connecting cylinder is provided between the chip discharge port and the chip inlet of the chip inlet cylinder. The top of the connecting cylinder is fixedly connected to the chip collecting box, the top of the connecting cylinder is adapted to the size of the chip discharge port, the bottom of the connecting cylinder is fixedly connected to the chip inlet cylinder, and the bottom of the connecting cylinder is adapted to the size of the chip inlet.

[0018] By adopting the above technical solution, the connection cylinder makes the connection between the chip discharge port and the chip inlet cylinder more stable and reliable, avoiding leakage or blockage of chips during transmission. The top of the connection cylinder is adapted to the size of the chip discharge port, ensuring that the chips can smoothly enter the connection cylinder from the chip discharge port without being stuck or scattered due to size mismatch. Similarly, the bottom of the connection cylinder is adapted to the size of the chip inlet, ensuring that the chips can smoothly enter the chip inlet cylinder, improving the transmission efficiency and reliability of the entire system.

[0019] Optionally, the side surface of the connection cylinder away from the electric telescopic rod is inclined and open, and a sieve plate is provided at the opening. When the chips fall from the chip discharge port, they can first fall onto the sieve plate and then pass through the sieve plate and fall into the chip inlet.

[0020] By adopting the above technical solution, the side surface of the connection cylinder away from the electric telescopic rod is inclined and open, and a sieve plate is provided at the opening. When the chips fall from the chip discharge port, they can first fall onto the sieve plate, and then the chips can pass through the sieve plate and fall into the chip inlet. The fine particles in the chips can fall from the sieve holes of the sieve plate through the sieve plate, avoiding the fine particles from entering the screw conveyor and damaging the screw conveyor.

[0021] Optionally, the top of the sieve plate is hinged to the chip collection box; a vibration assembly is provided below the sieve plate for driving the sieve plate to vibrate.

[0022] By adopting the above technical solution, the top of the sieve plate is hinged to the chip collection box, enabling the sieve plate to swing freely, thereby playing a buffering role when the chips fall and reducing the impact force of the chips on the chip inlet. At the same time, the vibration assembly provided below the sieve plate can drive the sieve plate to vibrate, which helps to evenly distribute the chips and quickly send them into the chip inlet, improving the efficiency and reliability of chip collection. The use of the vibration assembly can also effectively prevent the sieve plate from being blocked by chips, ensuring the continuous and stable operation of the cleaning device. In addition, the use of the vibration assembly can also make the fine particles in the chips more easily fall from the sieve plate, avoiding them from entering the screw conveyor.

[0023] Optionally, the vibration assembly includes a motor and a cam; the motor fixing rod is arranged on the frame, the cam is fixedly connected to the output shaft of the motor, and the top of the cam abuts against the sieve plate.

[0024] By adopting the above technical solution, the motor and the cam of the vibration assembly cooperate to enable the sieve plate to vibrate effectively. This design can make the chips more evenly distributed into the chip inlet, improving the conveying efficiency of the chips and avoiding blockage caused by chip accumulation. Vibration can also further separate the fine particles in the chips, avoiding them from entering the screw conveyor and damaging the screw conveyor.

[0025] Optionally, a sieve mesh is provided at the bottom of the sieve plate. The sieve mesh is made of an elastic material. One side of the sieve mesh is fixedly connected to the bottom of the sieve plate, and the other side is fixedly connected to the top surface of the chip inlet cylinder.

[0026] By adopting the above technical solution, when the sieve plate vibrates under the action of the vibration assembly, a gap will be generated between the sieve plate and the chip inlet. The setting of the sieve mesh can block this part of the gap, preventing debris from scattering through the gap when the sieve plate vibrates.

[0027] Optionally, the screw conveyor is inclined. The bottom of the screw conveyor is located on the side close to the chip inlet cylinder, and a trolley is provided below the chip outlet cylinder.

[0028] By adopting the above technical solution, the inclined setting of the screw conveyor provides space for the placement of the trolley. Through the setting of the trolley, the collection and transfer of debris are facilitated, improving the work efficiency.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The inclined setting of the chip scraping plate and its cooperation with the bottom surface of the chip collection box enable the debris to smoothly slide along the inclined surface into the chip discharge port, avoiding the accumulation of debris in the chip collection box and improving the collection efficiency of the debris. At the same time, the bottom surface of the chip scraping plate is closely attached to the bottom surface of the chip collection box, ensuring that the debris will not stay between the two, further enhancing the cleaning effect.

[0031] 2. The design of the electric telescopic rod and the push plate in the driving assembly realizes the stable sliding of the chip scraping plate on the bottom surface of the chip collection box, ensuring the uniform pushing of the debris, reducing manual intervention, and improving the degree of automation. The sliding connection between the push plate and the chip scraping plate enables the chip scraping plate to smoothly slide on the bottom surface of the chip collection box, avoiding jamming phenomena, and improving the reliability and stability of the cleaning process.

[0032] 3. The design of the limiting plate and the limiting groove can limit the chip scraping plate in a vertical state, so that when the electric telescopic rod pushes the push plate to move, the push plate can drive the chip scraping plate to move towards the direction close to the chip discharge port, and can move obliquely along the bottom surface of the chip collection box, so as to achieve the effect that the chip scraping plate can not only move in the horizontal direction but also move along the inclined direction of the bottom surface of the chip collection box under the action of the push plate, making the push plate more stable when pushing the chip scraping plate and avoiding the problem of incomplete chip scraping caused by the looseness between the push plate and the chip scraping plate.

[0033] 4. The arrangement of the screw conveyor and its connection to the chip discharge port can directly send the discharged chips into the trolley, achieving continuous conveyance and centralized treatment of the chips, further improving the efficiency and safety of chip cleaning. The inclined arrangement of the connecting cylinder and the design of the sieve plate ensure effective screening of the chips before they fall into the screw conveyor, preventing small particles from staying in the screw conveyor and causing damage to it, and ensuring the smooth operation of the entire system. Description of the Drawings

[0034] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0035] Figure 2 is the overall structural schematic diagram of the embodiment of the present application when the electric telescopic rod is in the longest state;

[0036] Figure 3 is the top view structural schematic diagram of the embodiment of the present application when the electric telescopic rod is in the longest state;

[0037] Figure 4 is Figure 3 the partial enlarged schematic diagram of part A in

[0038] Figure 5 is the overall structural schematic diagram of another perspective of the embodiment of the present application when the electric telescopic rod is in the longest state;

[0039] Figure 6 is Figure 2 the partial enlarged schematic diagram of part B in

[0040] Description of the Reference Numerals: 1, frame; 2, chip collecting box; 21, chip discharge port; 22, sliding port; 3, chip scraping plate; 31, limiting plate; 32, limiting groove; 33, communication port; 4, driving assembly; 41, electric telescopic rod; 42, push plate; 43, limiting block; 5, screw conveyor; 51, chip inlet cylinder; 511, chip inlet; 52, chip outlet cylinder; 521, chip falling port; 6, trolley; 61, push rod; 62, universal wheel; 7, connecting cylinder; 71, sieve plate; 72, sieve mesh; 8, vibration assembly; 81, motor; 82, cam; 9, blower. Detailed Description of the Embodiment

[0041] The following further describes the present application in detail Figures 1-6 in conjunction with the attached drawings.

[0042] The embodiment of the present application discloses a chip cleaning device for a CNC milling machine. Referring to Figure 1 and Figure 2, A chip cleaning device for a numerically controlled milling machine includes a frame 1, a chip collecting box 2, a chip scraping plate 3, a driving component 4, and a screw conveyor 5; the chip collecting box 2 is arranged on the frame 1, the chip collecting box 2 is arranged on one side of the numerically controlled milling machine, and the chip collecting box 2 is located on the side with the largest amount of splashing chips of the numerically controlled milling machine. The chip collecting box 2 has an open top structure, and the side of the chip collecting box 2 close to the numerically controlled milling machine is also open; the bottom surface of the chip collecting box 2 is inclined, and a chip discharge port 21 is opened at the bottom of the bottom surface of the chip collecting box 2; the chip scraping plate 3 is arranged vertically, the bottom surface of the chip scraping plate 3 is also inclined, and the inclination angle is the same as that of the bottom surface of the chip collecting box 2. The bottom surface of the chip scraping plate 3 abuts against the bottom surface of the chip collecting box 2, and the chip scraping plate 3 can slide on the bottom surface of the chip collecting box 2; the driving component 4 is arranged on one side of the chip collecting box 2 for driving the chip scraping plate 3 to slide; the screw conveyor 5 is arranged below the chip discharge port 21 for receiving and transporting chips.

[0043] The design of the open top and one side of the chip collecting box 2 enables chips to smoothly enter the interior of the chip collecting box 2, and the inclined bottom surface helps to concentrate the chips towards the chip discharge port 21. The design of the chip scraping plate 3 enables it to slide along the bottom surface of the chip collecting box 2, effectively pushing the chips towards the chip discharge port 21; the bottom surface of the chip scraping plate 3 is closely attached to the bottom surface of the chip collecting box 2, ensuring that chips will not stay between the two, further improving the cleaning effect.

[0044] During operation, most of the chips generated by the numerically controlled milling machine can splash into the chip collecting box 2 through the open top and side openings of the chip collecting box 2, and then fall into the screw conveyor 5 from the chip discharge port 21 under the inclination of the bottom surface of the chip collecting box 2 and accumulate at the chip discharge port 21; during cleaning, the driving component 4 drives the chip scraping plate 3 to move towards the direction close to the chip discharge port 21, concentrating all the chips in the chip collecting box 2 above the chip discharge port 21, and the screw conveyor 5 transports the chips falling from the chip discharge port 21.

[0045] Refer to Figure 1 and Figure 2, the driving component 4 includes an electric telescopic rod 41 and a push plate 42, and also includes a controller and a handheld control switch; the electric telescopic rod 41 is horizontally arranged and is located on the side of the chip collecting box 2 away from the chip discharging port 21; the controller is arranged inside the electric telescopic rod 41, and both the electric telescopic rod 41 and the handheld control switch are electrically connected to the controller. The electric telescopic rod 41 is a multi-stage electric telescopic rod 41. The fixed end of the electric telescopic rod 41 is fixedly arranged on the frame 1, and the movable end of the electric telescopic rod 41 is fixedly connected to the push plate 42; the push plate 42 is horizontally arranged, and the side of the push plate 42 away from the electric telescopic rod 41 is slidably connected to the chip scraping plate 3 in the vertical direction; a sliding port 22 is opened on one side of the chip collecting box 2 close to the electric telescopic rod 41, and the size of the sliding port 22 is adapted to the size of the push plate 42, and the push plate 42 can slide in the sliding port 22. The driving component 4 composed of the electric telescopic rod 41 and the push plate 42 enables the chip scraping plate 3 to move between the chip discharging port 21 and the side wall of the chip collecting box 2 under the action of the electric telescopic rod 41 and the push plate 42, so that the chip scraping plate 3 can concentrate the chips at the bottom of the chip collecting box 2 to the chip discharging port 21.

[0046] During cleaning, it is started through the handheld control switch. The handheld control switch first transmits a signal to the controller, and the controller controls the movable end of the electric telescopic rod 41 to extend. The movable end of the electric telescopic rod 41 drives the push plate 42 to move towards the direction close to the chip discharging port 21, and the push plate 42 drives the chip scraping plate 3 to also move towards the direction close to the chip discharging port 21, so as to concentrate the chips in the chip collecting box 2 above the chip discharging port 21.

[0047] Refer to Figure 1 and Figure 2 , the screw conveyor 5 is arranged below the chip collecting box 2. A chip inlet cylinder 51 is fixedly arranged on one side of the screw conveyor 5, and a chip inlet 511 is opened on the chip inlet cylinder 51. A chip outlet cylinder 52 is fixedly arranged on the side of the screw conveyor 5 away from the chip inlet cylinder 51, and a chip dropping port 521 is opened at the bottom of the chip outlet cylinder 52. The screw conveyor 5 is inclined, the bottom of the screw conveyor 5 is located on the side close to the chip inlet cylinder 51, and a trolley 6 is arranged below the chip outlet cylinder 52. Four universal wheels 62 are arranged at the bottom of the trolley 6, and a push rod 61 is fixedly arranged on one side of the top of the trolley 6.

[0048] The setting of the screw conveyor 5 further improves the processing efficiency of the chips, ensures that the chips can be smoothly transported to the designated position. During the process of transporting the metal chips by the screw conveyor 5, it is difficult for the metal chips to fall off from the screw conveyor 5 and cause secondary scattering, improving the defect that when using a conveyor belt to transport metal chips in the traditional cleaning device, it is easy for the metal chips to scatter to both sides and require secondary cleaning. The screw conveyor 5 is inclined, providing space for the placement of the trolley 6. The setting of the trolley 6 facilitates the collection and transfer of the chips.

[0049] Refer to Figure 3 and Figure 4, on one side of the chip scraping plate 3 close to the electric telescopic rod 41, a limiting plate 31 is fixedly arranged. The limiting plate 31 is vertically arranged and there are two of them. The cross-sections of the two limiting plates 31 are both L-shaped. The two limiting plates 31 are arranged oppositely in the horizontal direction. A limiting groove 32 is formed between the two limiting plates 31 and the chip scraping plate 3 on the side where they are close to each other; on both sides of the pushing plate 42, a limiting block 43 is fixedly connected. The size of the limiting block 43 is adapted to the size of the limiting groove 32, and the limiting block 43 is slidably arranged in the limiting groove 32 in the vertical direction.

[0050] The design of the limiting plate 31 and the limiting groove 32 can limit the chip scraping plate 3 in a vertical state, so that when the electric telescopic rod 41 pushes the pushing plate 42 to move, the pushing plate 42 can drive the chip scraping plate 3 to move towards the direction close to the chip discharging port 21, and can move obliquely along the bottom surface of the chip collecting box 2, so as to achieve the effect that the chip scraping plate 3 can not only move horizontally under the action of the pushing plate 42, but also move along the inclined direction of the bottom surface of the chip collecting box 2, making the pushing plate 42 more stable when pushing the chip scraping plate 3, and avoiding the problem of incomplete chip scraping caused by the looseness between the pushing plate 42 and the chip scraping plate 3. At the same time, the cooperation between the limiting block 43 and the limiting groove 32 can effectively prevent the pushing plate 42 from shifting or falling off during the sliding process, improving the reliability and safety of the whole device.

[0051] Referring to Figure 2 and Figure 5 , a communication port 33 is opened on the chip scraping plate 3. The size of the communication port 33 is adapted to the size of the pushing plate 42, and the size of the communication port 33 is also adapted to the size of the limiting block 43; when the chip scraping plate 3 moves above the chip discharging port 21 and is close to the side of the electric telescopic rod 41, the pushing plate 42 and the limiting block 43 are opposite to the communication port 33 in the horizontal direction; when the pushing plate 42 and the limiting block 43 are aligned with the communication port 33, the pushing plate 42 and the limiting block 43 can slide horizontally in the communication port 33. The communication port 33 on the chip scraping plate 3 is adapted to the size of the pushing plate 42 and the limiting block 43, ensuring that when the chip scraping plate 3 moves above the chip discharging port 21 and is close to the side of the electric telescopic rod 41, the pushing plate 42 and the limiting block 43 can smoothly enter the communication port 33 and slide therein. A plurality of air blowers 9 are arranged on the pushing plate 42, and the air blowers 9 can blow air downward.

[0052] When the chip scraping plate 3 moves above the chip discharging port 21 and is close to the side of the electric telescopic rod 41 under the action of the electric telescopic rod 41 and the push plate 42, at this time, the debris at the bottom of the chip collecting box 2 is concentrated on the side of the chip scraping plate 3 away from the push plate 42 and above the chip discharging port 21. At this time, the push plate 42 and the limit block 43 are aligned with the communication port 33; the electric telescopic rod 41 continues to extend. At this time, the chip scraping plate 3 does not move, and the push plate 42 and the limit block 43 continue to move away from the electric telescopic rod 41 under the action of the electric telescopic rod 41 until they move above the chip discharging port 21. When the electric telescopic rod 41 extends to the longest state, the side of the push plate 42 away from the electric telescopic rod 41 abuts against the side wall of the chip collecting box 2 on the side away from the electric telescopic rod 41. When the electric telescopic rod 41 extends to the longest state, the blower 9 is located above the chip discharging port 21. At this time, the controller controls the blower 9 to start, and the blower 9 blows downward, blowing the debris between the blower 9 and the chip discharging port 21 in the direction of the chip discharging port 21, helping to push and disperse the debris, improving the collection efficiency of the debris, and reducing the possibility of the debris adhering to the push plate 42 or the chip scraping plate 3.

[0053] Referring to Figure 2 and Figure 6 , a connecting cylinder 7 is provided between the chip discharging port 21 and the chip inlet 511 of the chip inlet cylinder 51. The top of the connecting cylinder 7 is fixedly connected to the chip collecting box 2. The top of the connecting cylinder 7 is adapted to the size of the chip discharging port 21. The bottom of the connecting cylinder 7 is fixedly connected to the chip inlet cylinder 51. The bottom of the connecting cylinder 7 is adapted to the size of the chip inlet 511. The setting of the connecting cylinder 7 makes the connection between the chip discharging port 21 and the chip inlet cylinder 51 more stable and reliable, avoiding the leakage or blockage of debris during the transmission process. The top of the connecting cylinder 7 is adapted to the size of the chip discharging port 21, ensuring that the debris can smoothly enter the connecting cylinder 7 from the chip discharging port 21 without being stuck or scattered due to size mismatch. Similarly, the bottom of the connecting cylinder 7 is adapted to the size of the chip inlet 511, ensuring that the debris can smoothly enter the chip inlet cylinder 51, improving the transmission efficiency and reliability of the entire system.

[0054] Referring to Figure 2 and Figure 6, the side of the connecting cylinder 7 away from the electric telescopic rod 41 is inclined and open, and a sieve plate 71 is provided at the opening. A number of uniformly distributed sieve holes are formed in the sieve plate 71, and the size of the sieve holes is small. Most of the debris cannot fall through the sieve holes, and only the fine particles in the debris can fall through the sieve holes. When the debris falls from the chip discharge port 21, it can first fall onto the sieve plate 71, and then pass through the sieve plate 71 and fall into the chip inlet 511. When the debris falls from the chip discharge port 21, it can first fall onto the sieve plate 71, and then the debris can pass through the sieve plate 71 and fall into the chip inlet 511. The fine particles in the debris can pass through the sieve plate 71 and fall from the sieve holes of the sieve plate 71, preventing the fine particles from entering the screw conveyor 5 and damaging the screw conveyor 5. A recycling box can be provided below the sieve plate 71 to receive the fine particles that fall from the sieve plate 71.

[0055] Refer to Figure 2 and Figure 6 , the top of the sieve plate 71 is hinged to the chip collecting box 2; a vibration assembly 8 is provided below the sieve plate 71 for driving the sieve plate 71 to vibrate. The sieve plate 71 can swing freely, thereby playing a buffering role when the debris falls and reducing the impact force of the debris on the chip inlet 511. At the same time, the vibration assembly 8 provided below the sieve plate 71 can drive the sieve plate 71 to vibrate, which helps to evenly distribute the debris and quickly send it into the chip inlet 511, improving the efficiency and reliability of debris collection. The use of the vibration assembly 8 can also effectively prevent the debris from clogging the sieve plate 71 and ensure the continuous and stable operation of the cleaning device. In addition, the use of the vibration assembly 8 can also make the fine particles in the debris more likely to fall from the sieve plate 71, preventing them from entering the screw conveyor 5.

[0056] Refer to Figure 2 and Figure 6 , the vibration assembly 8 includes a motor 81 and a cam 82; the motor 81 is also electrically connected to the controller, and the controller can control the start and stop of the motor 81. The motor 81 is fixedly arranged on the frame 1, the cam 82 is fixedly connected to the output shaft of the motor 81, and the top of the cam 82 abuts against the sieve plate 71. The motor 81 and the cam 82 of the vibration assembly 8 cooperate to enable the sieve plate 71 to vibrate effectively. This design can make the debris more evenly distributed into the chip inlet 511, improve the conveying efficiency of the debris, and at the same time prevent the debris from accumulating and causing blockage. Vibration can further separate the fine particles in the debris, preventing them from entering the screw conveyor 5 and damaging the screw conveyor 5.

[0057] Refer to Figure 2 and Figure 6, a screen 71 is provided at the bottom of the screen plate 71, and the screen 72 is made of an elastic material. One side of the screen 72 is fixedly connected to the bottom of the screen plate 71, and the other side is fixedly connected to the top surface of the chip inlet cylinder 51. When the screen plate 71 vibrates under the action of the vibration assembly 8, a gap will be generated between the screen plate 71 and the chip inlet 511. The setting of the screen 72 can block this part of the gap, so that the connecting cylinder 7 is always in a closed state, avoiding the scattering of debris from the gap between the screen plate 71 and the chip inlet 511 when the screen plate 71 vibrates.

[0058] The implementation principle of the chip cleaning device of the CNC milling machine in the embodiment of the present application is as follows:

[0059] During operation, most of the chips generated by the CNC milling machine can splash into the chip collection box 2 through the top opening and side opening of the chip collection box 2, and then fall into the screw conveyor 5 from the chip discharge port 21 under the inclination of the bottom surface of the chip collection box 2, and accumulate in the chip discharge port 21, the connecting cylinder 7 and the chip inlet cylinder 51.

[0060] When the chips accumulated at the chip discharge port 21 need to be cleaned to a certain extent, it is started by holding the control switch. The hand-held control switch first transmits the signal to the controller. The controller controls the movable end of the electric telescopic rod 41 to extend. The controller simultaneously starts the screw conveyor 5 to transport the chips accumulated in the chip discharge port 21, the connecting cylinder 7 and the chip inlet cylinder 51; the movable end of the electric telescopic rod 41 drives the push plate 42 to move towards the direction close to the chip discharge port 21, and the push plate 42 drives the chip scraping plate 3 to also move towards the direction close to the chip discharge port 21, so as to concentrate the chips in the chip collection box 2 above the chip discharge port 21.

[0061] The controller controls the electric telescopic rod 41 to extend. While the screw conveyor 5 is started, the controller also controls the motor 81 to start. The output shaft of the motor 81 drives the cam 82 to rotate. The top of the cam 82 abuts against the screen plate 71, and the cam 82 drives the screen plate 71 to vibrate. The vibration of the screen plate 71 can make the chips more evenly distributed into the chip inlet 511, improve the chip conveying efficiency, and at the same time avoid chip accumulation and blockage; the vibration can further separate the fine particles in the chips, and the fine particles in the chips can fall through the screen holes of the screen plate 71, avoiding entering the screw conveyor 5 and causing damage to the screw conveyor 5.

[0062] When the chip scraping plate 3 moves above the chip discharging port 21 and close to the side of the electric telescopic rod 41 under the action of the electric telescopic rod 41 and the push plate 42, at this time, the debris at the bottom of the chip collecting box 2 is concentrated on the side of the chip scraping plate 3 away from the push plate 42 and above the chip discharging port 21. At this time, the push plate 42 and the limit block 43 are aligned with the communication port 33; the controller controls the electric telescopic rod 41 to continue to extend. At this time, the chip scraping plate 3 does not move, and the push plate 42 and the limit block 43 continue to move away from the electric telescopic rod 41 under the action of the electric telescopic rod 41 until they move above the chip discharging port 21. When the electric telescopic rod 41 extends to the longest state, the side of the push plate 42 away from the electric telescopic rod 41 abuts against the side wall of the chip collecting box 2 on the side away from the electric telescopic rod 41. When the electric telescopic rod 41 extends to the longest state, the blower 9 is located above the chip discharging port 21. At this time, the controller controls the blower 9 to start, and the blower 9 blows downward, blowing the debris between the blower 9 and the chip discharging port 21 towards the direction of the chip discharging port 21, helping to push and disperse the debris, improving the collection efficiency of the debris, and reducing the possibility of the debris adhering to the push plate 42 or the chip scraping plate 3.

[0063] Meanwhile, the screw conveyor 5 continues to work, transporting the debris from the chip inlet cylinder 51 to the chip outlet cylinder 52 and discharging it through the chip outlet, so that the debris falls into the trolley 6.

[0064] Until it is visually observed that the debris cleaning is completed, the cleaning device is controlled to be closed through the hand-held control switch. The controller receives the closing signal, causing the electric telescopic rod 41 to shorten, the screw conveyor 5 and the motor 81 to stop working; when the movable end of the electric telescopic rod 41 shortens, it drives the push plate 42 to move towards the direction close to the electric telescopic rod 41 until the limit block 43 passes through the communication port 33 and enters the limit groove 32 and abuts against the side wall of the limit groove 32. The push plate 42 drives the limit plate 31 and the chip scraping plate 3 to move towards the direction close to the electric telescopic rod 41 together until the chip scraping plate 3 abuts against the inner side wall of the chip collecting box 2. At this time, it returns to the initial state, and the controller controls the electric telescopic rod 41 to also stop working, completing the operation process of the entire cleaning device. Then, the debris can be transferred manually through the trolley 6.

[0065] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A chip cleaning device for a CNC milling machine, characterized in that: The invention comprises a frame (1), a chip collecting box (2), a scraper plate (3), a driving assembly (4) and a screw conveyor (5); the chip collecting box (2) is arranged on the frame (1) and is located on one side of a numerically controlled milling machine; the chip collecting box (2) is a top-opening structure, and the side of the chip collecting box (2) close to the numerically controlled milling machine is also open; the bottom surface of the chip collecting box (2) is arranged at an angle, and a chip discharge opening (21) is provided at the bottom of the bottom surface of the chip collecting box (2); the scraper plate (3) is arranged vertically, and the bottom surface of the scraper plate (3) is also arranged at an angle, and the inclination angle is the same as the inclination angle of the bottom surface of the chip collecting box (2); the bottom surface of the scraper plate (3) and the bottom surface of the chip collecting box (2) are in contact with each other, and the scraper plate (3) can slide on the bottom surface of the chip collecting box (2); The driving assembly (4) comprises an electric telescopic rod (41) and a push plate (42); the electric telescopic rod (41) is arranged horizontally and is located outside the chip collecting box (2) on a side away from the chip discharge port (21); the electric telescopic rod (41) is a multi-stage electric telescopic rod (41), the fixed end of the electric telescopic rod (41) is fixedly arranged on the frame (1), and the movable end of the electric telescopic rod (41) is fixedly connected to the push plate (42); the push plate (42) is arranged horizontally, and the side of the push plate (42) away from the electric telescopic rod (41) is slidably connected to the scraper plate (3) in the vertical direction; a sliding opening (22) is provided on a side of the chip collecting box (2) close to the electric telescopic rod (41), the size of the sliding opening (22) is matched with the size of the push plate (42), and the push plate (42) can slide in the sliding opening (22); The screw conveyor (5) is arranged below the chip collecting box (2); a chip feed cylinder (51) is fixedly arranged on one side of the screw conveyor (5); a chip feed opening (511) is provided on the chip feed cylinder (51); a chip discharge cylinder (52) is fixedly arranged on the side of the screw conveyor (5) away from the chip feed cylinder (51); a chip discharge opening (521) is provided at the bottom of the chip discharge cylinder (52); A limiting plate (31) is fixedly arranged on one side of the scraper plate (3) close to the electric telescopic rod (41); the limiting plates (31) are arranged vertically and two of them are provided; the cross-sections of the two limiting plates (31) are both L-shaped; a limiting groove (32) is formed between the two sides of the two limiting plates (31) close to each other on the scraper plate (3); a limiting block (43) is fixedly connected to both sides of the push plate (42); the size of the limiting block (43) is adapted to the size of the limiting groove (32); the limiting block (43) is slidably arranged in the limiting groove (32) along the vertical direction; The scraper plate (3) is provided with a connecting opening (33), the size of which matches the size of the push plate (42), and the size of which also matches the size of the limit block (43); when the scraper plate (3) moves to the top of the chip removal opening (21) and close to one side of the electric telescopic rod (41), the push plate (42) and the limit block (43) are opposite to the connecting opening (33) in the horizontal direction; when the push plate (42) and the limit block (43) are aligned with the connecting opening (33), the push plate (42) and the limit block (43) can slide in the connecting opening (33) in the horizontal direction; The push plate (42) is provided with a plurality of fans (9); A connecting tube (7) is provided between the chip discharge port (21) and the chip feed port (511) of the chip feed tube (51); the top of the connecting tube (7) is fixedly connected to the chip collection box (2); the top of the connecting tube (7) is adapted to the size of the chip discharge port (21); the bottom of the connecting tube (7) is fixedly connected to the chip feed tube (51); the bottom of the connecting tube (7) is adapted to the size of the chip feed port (511); The side surface of the connecting tube (7) away from the electric telescopic rod (41) is inclined and open, and a sieve plate (71) is provided at the opening. When the chips fall from the chip discharge opening (21), they can first fall onto the sieve plate (71) and then pass through the sieve plate (71) and fall into the chip feed opening (511); The top of the sieve plate (71) is hinged to the chip collecting box (2); a vibration assembly (8) is provided below the sieve plate (71) for driving the sieve plate (71) to vibrate; The vibration assembly (8) comprises a motor (81) and a cam (82); a fixing rod of the motor (81) is arranged on the frame (1), the cam (82) is fixedly connected to an output shaft of the motor (81), and a top of the cam (82) abuts against the sieve plate (71); A screen (72) is provided at the bottom of the screen plate (71), and the screen (72) is made of elastic material. One side of the screen (72) is fixedly connected to the bottom of the screen plate (71), and the other side is fixedly connected to the top surface of the chip feeding cylinder (51); The screw conveyor (5) is arranged at an angle, and the bottom of the screw conveyor (5) is located on a side close to the chip inlet cylinder (51), and a trolley (6) is provided below the chip outlet cylinder (52).

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