Chip cleaning device of numerical control milling machine

Abstract

The invention relates to a numerical control milling machine chipping cleaning device, which relates to the technical field of chipping cleaning of numerical control milling machine processing equipment, and comprises a rack, a chipping collecting box, a chipping scraping plate, a driving assembly and a spiral conveyer, the chip collecting box is arranged on the rack and on one side of the numerical control milling machine; the bottom face of the chip collecting box is obliquely arranged, and a chip discharging opening is formed in the bottom of the bottom face of the chip collecting box. The chip scraping plate is vertically arranged, the bottom surface of the chip scraping plate is also obliquely arranged, the inclination angle of the chip scraping plate is the same as that of the bottom surface of the chip collecting box, the bottom surface of the chip scraping plate abuts against the bottom surface of the chip collecting box, and the chip scraping plate can slide on the bottom surface of the chip collecting box; the driving assembly is arranged on one side of the chip collecting box and used for driving the chip scraping plate to slide. The spiral conveyor is arranged below the chip removal opening and used for receiving the chips and transporting the chips. The chippings generated by the numerical control milling machine can be effectively collected and cleaned.

Description

Technical Field

[0001] The present application relates to the technical field of chip cleaning of numerically controlled milling machine processing equipment, and in particular to a chip cleaning device for numerically controlled milling machine. 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, the large amount of metal debris 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 debris in a timely and effective manner.

[0003] The existing chip cleaning device of CNC milling machine includes 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 drop opening is provided at the bottom of the collection box. When cleaning, the chips need to be moved to the chip drop opening manually, and then the chips fall onto the conveyor belt for transportation. Manual cleaning and conveyor belt transportation. Although manual cleaning is simple and easy, it is inefficient and labor-intensive, and cannot meet the needs of modern industrial production. However, the conveyor belt conveying device still has some limitations in practical applications.

[0004] Although the conveyor belt conveyor device has solved the problem of chip cleaning of CNC milling machines to a certain extent, it still has some shortcomings. The conveyor belt conveyor device is easy to cause the chips to scatter during the cleaning process, which is difficult to collect completely, resulting in environmental pollution and waste of resources. Summary of the invention

[0005] In order to improve the problem of manual cleaning of metal debris and the problem of debris scattering caused by conveyor belt transportation, the present application provides a debris cleaning device for a CNC milling machine.

[0006] The present application provides a chip cleaning device for a CNC milling machine, which adopts the following technical solution: A chip cleaning device for a numerically controlled milling machine comprises a frame, a chip collecting box, a scraper plate, a driving assembly and a screw conveyor; the chip collecting box is arranged on the frame and is located on one side of the numerically controlled milling machine, the chip collecting box is a top-opening structure, and the side of the chip collecting box close to the numerically controlled milling machine is also open; the bottom surface of the chip collecting box is arranged obliquely, and a chip discharge opening is provided at the bottom of the bottom surface of the chip collecting box; the scraper plate is arranged vertically, and the bottom surface of the scraper plate is also arranged obliquely, and the inclination angle is the same as the inclination angle of the bottom surface of the chip collecting box, the bottom surface of the scraper plate abuts against the bottom surface of the chip collecting box, and the scraper plate can slide on the bottom surface of the chip collecting box; The driving assembly comprises an electric telescopic rod and a push plate; the electric telescopic rod is horizontally arranged and located outside the chip collection box on a side away from the chip discharge port; the electric telescopic rod is a multi-stage electric telescopic rod, the fixed end of the electric telescopic rod is fixedly arranged on the frame, and the movable end of the electric telescopic rod is fixedly connected to 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 to the scraper plate in a vertical direction; a sliding opening is provided on a side of the chip collection 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; The screw conveyor is arranged below the chip collecting box, a chip feed cylinder is fixedly arranged on one side of the screw conveyor, a chip feed opening is provided on the chip feed cylinder, a chip discharge cylinder is fixedly arranged on the side of the screw conveyor away from the chip feed cylinder, a chip discharge opening is provided at the bottom of the chip discharge cylinder.

[0007] By adopting the above technical solution, the debris generated by the CNC milling machine can be effectively collected and cleaned. Specifically, the design of the top opening and the side opening of the chip box allows the debris to smoothly enter the interior of the chip box, while the inclined bottom surface helps to concentrate the debris to the chip discharge port. The design of the scraper plate enables it to slide along the bottom surface of the chip box, effectively pushing the debris to the chip discharge port; the bottom surface of the scraper plate fits tightly with the bottom surface of the chip box, ensuring that the debris will not be retained between the two, further improving the cleaning effect. The drive assembly composed of the electric telescopic rod and the push plate enables the scraper plate to move between the chip discharge port and the side wall of the chip box under the action of the electric telescopic rod and the push plate, so that the scraper plate can concentrate the debris at the bottom of the chip box to the chip discharge port. The setting of the screw conveyor further improves the efficiency of debris processing and ensures that the debris can be smoothly transported to the designated location. In the process of transporting metal debris, the metal debris is difficult to fall off the screw conveyor and cause secondary scattering, which improves the defect of the traditional cleaning device that the metal debris is easily scattered to both sides when the conveyor belt is used to transport metal debris and needs secondary cleaning. Overall, the device significantly improves the cleanliness of the working environment of the CNC milling machine, reduces the labor intensity of manual cleaning, and improves production efficiency.

[0008] Optionally, a limit plate is fixedly provided on one side of the scraper plate close to the electric telescopic rod, and the limit plate is vertically arranged and provided with two, the cross-sections of the two limit plates are both L-shaped, and a limit groove is formed between the scraper plates on the side where the two limit plates are close to each other; a limit block is fixedly connected on both sides of the push plate, the size of the limit block is adapted to the size of the limit groove, and the limit block is slidably arranged in the limit groove along the vertical direction.

[0009] By adopting the above technical solution, the design of the limit plate and the limit groove can limit the scraper plate in a vertical state, so that when the electric telescopic rod pushes the push plate to move, the push plate can drive the scraper plate to move in the direction close to the chip discharge port, and can move obliquely along the bottom surface of the chip collection box, so that the scraper plate can not only move in the horizontal direction under the action of the push plate, but also move in the oblique direction of the bottom surface of the chip collection box, so that the push plate is more stable when pushing the scraper plate, avoiding the problem of incomplete scraping caused by the looseness between the push plate and the scraper plate. At the same time, the cooperation between the limit block and the limit groove can effectively prevent the push plate from deflecting or falling off during the sliding process, thereby improving the reliability and safety of the entire device.

[0010] Optionally, a connecting port is provided on the scraper plate, the size of the connecting port is adapted to the size of the push plate, and the size of the connecting port is also adapted to the size of the limit block; when the scraper plate moves to above the chip removal port and close to one side of the electric telescopic rod, the push plate and the limit block are opposite to the connecting port in the horizontal direction; when the push plate and the limit block are aligned with the connecting port, the push plate and the limit block can slide in the connecting port in the horizontal direction.

[0011] By adopting the above technical solution, the connecting port on the scraper plate is adapted to the size of the push plate and the limit block, ensuring that when the scraper plate moves to the top of the chip discharge port and close to the side of the electric telescopic rod, the push plate and the limit block can smoothly enter the connecting port and slide in it. When the scraper plate moves to the top of the chip discharge port and close to the side of the electric telescopic rod, the debris at the bottom of the chip collection box is concentrated to the side of the scraper plate away from the push plate and located above the chip discharge port, and the push plate and the limit block are aligned with the connecting port, and then the electric telescopic rod continues to extend. At this time, the scraper plate does not move, and the push plate and the limit block continue to move in the direction away from the electric telescopic rod under the action of the electric telescopic rod, and move to above the chip discharge port.

[0012] Optionally, a plurality of fans are provided on the push plate.

[0013] By adopting the above technical solution, when the push plate moves above the chip discharge port, airflow can be generated under the action of several fans on the push plate, which helps to push and disperse the debris, causing the debris to fall from the chip discharge port, thereby improving the chip collection efficiency and reducing the possibility of debris adhering to the push plate or scraper plate, thereby further improving the working performance and cleaning effect of the entire CNC milling machine chip cleaning device.

[0014] Optionally, a connecting tube is provided between the chip discharge port and the chip feed port of the chip feed barrel, the top of the connecting tube is fixedly connected to the chip collection box, the top of the connecting tube is adapted to the size of the chip discharge port, the bottom of the connecting tube is fixedly connected to the chip feed barrel, and the bottom of the connecting tube is adapted to the size of the chip feed port.

[0015] By adopting the above technical solution, the connection between the chip discharge port and the chip feeder is more stable and reliable, avoiding leakage or blockage of chips during transmission. The top of the connecting tube is matched with the size of the chip discharge port, ensuring that the chips can smoothly enter the connecting tube from the chip discharge port without getting stuck or scattered due to size mismatch. Similarly, the bottom of the connecting tube is matched with the size of the chip feeder, ensuring that the chips can smoothly enter the chip feeder, improving the transmission efficiency and reliability of the entire system.

[0016] Optionally, the side surface of the connecting tube away from the electric telescopic rod is inclined and open, and a screen plate is provided at the opening. When debris falls from the chip discharge port, it can first fall onto the screen plate and then pass through the screen plate into the chip feed port.

[0017] By adopting the above technical solution, the side surface of the connecting tube away from the electric telescopic rod is inclined and open, and a screen plate is provided at the opening, so that when the debris falls from the chip discharge port, it can first fall on the screen plate, and then the debris can pass through the screen plate and fall into the chip inlet, and the fine particles in the debris can pass through the screen plate and fall from the sieve holes of the sieve plate, thereby preventing fine particles from entering the screw conveyor and causing damage to the screw conveyor.

[0018] Optionally, the top of the screen plate is hinged to the chip box; and a vibration assembly is provided under the screen plate to drive the screen plate to vibrate.

[0019] By adopting the above technical solution, the top of the screen plate is hinged to the chip collection box, so that the screen plate can swing freely, thereby playing a buffering role when the debris falls, reducing the impact of the debris on the chip inlet. At the same time, the vibration component arranged under the screen plate can drive the screen plate to vibrate, which helps to evenly distribute the debris and quickly send it into the chip inlet, thereby improving the efficiency and reliability of debris collection. The use of the vibration component can also effectively prevent the debris from clogging the screen plate, ensuring the continuous and stable operation of the cleaning device. In addition, the use of the vibration component can also make it easier for fine particles in the debris to fall from the screen plate, preventing them from entering the screw conveyor.

[0020] 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 is in contact with the screen plate.

[0021] By adopting the above technical solution, the motor and cam of the vibration assembly are used together to make the screen plate vibrate effectively. This design can make the debris more evenly distributed in the chip inlet, improve the efficiency of debris transportation, and avoid debris accumulation and blockage. Vibration can also further separate fine particles in the debris to prevent them from entering the screw conveyor and causing damage to the screw conveyor.

[0022] Optionally, a screen is provided at the bottom of the sieve plate, and the screen is made of elastic material chips. One side of the screen is fixedly connected to the bottom of the sieve plate, and the other side is fixedly connected to the top surface of the chip feeding cylinder.

[0023] By adopting the above technical solution, when the screen plate vibrates under the action of the vibration component, a gap will be generated between it and the chip feed port. The setting of the screen can block this part of the gap to prevent debris from scattering from the gap when the screen plate vibrates.

[0024] Optionally, the screw conveyor is arranged at an angle, and the bottom of the screw conveyor is located on a side close to the chip inlet cylinder, and a trolley is provided under the chip outlet cylinder.

[0025] By adopting the above technical solution, the screw conveyor is tilted to provide space for the placement of the trolley. The placement of the trolley facilitates the collection and transfer of debris and improves work efficiency.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The inclined setting of the scraper plate and its coordination with the bottom of the chip box enable the debris to slide smoothly into the chip discharge port along the inclined surface, avoiding the accumulation of debris in the chip box and improving the efficiency of debris collection. At the same time, the bottom of the scraper plate fits tightly with the bottom of the chip box, ensuring that the debris will not be retained between the two, further improving the cleaning effect.

[0027] 2. The design of the electric telescopic rod and push plate in the drive assembly enables the scraper plate to slide stably on the bottom surface of the chip box, ensuring the uniform pushing of debris, reducing manual intervention and improving the degree of automation. The sliding connection between the push plate and the scraper plate enables the scraper plate to slide smoothly on the bottom surface of the chip box, avoiding jamming and improving the reliability and stability of the cleaning process.

[0028] 3. The design of the limit plate and the limit groove can limit the scraper plate in a vertical state, so that when the electric telescopic rod pushes the push plate to move, the push plate can drive the scraper plate to move in the direction close to the chip discharge port, and can move obliquely along the bottom surface of the chip collection box, so that the scraper plate can not only move in the horizontal direction under the action of the push plate, but also move along the inclined direction of the bottom surface of the chip collection box, making the push plate more stable when pushing the scraper plate, avoiding the problem of incomplete scraping caused by looseness between the push plate and the scraper plate.

[0029] 4. The setting of the screw conveyor and its connection with the chip discharge port can directly deliver the discharged debris into the trolley, realizing the continuous transportation and centralized treatment of the debris, further improving the efficiency and safety of debris cleaning. The inclined setting of the connecting cylinder and the design of the screen plate ensure that the debris is effectively screened before falling into the screw conveyor, preventing fine particles from being retained in the screw conveyor and causing damage to it, thus ensuring the smooth operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic diagram of the overall structure of the electric telescopic rod in the embodiment of the present application when it is in the longest state; Figure 3 is a schematic diagram of a top view of the structure when the electric telescopic rod in the embodiment of the present application is in the longest state; Figure 4 yes Figure 3 A partial enlarged schematic diagram of part A; Figure 5 is a schematic diagram of the overall structure from another perspective when the electric telescopic rod in the embodiment of the present application is in the longest state; Figure 6 yes Figure 2 A partial enlarged schematic diagram of part B.

[0031] Explanation of the reference numerals: 1. Frame; 2. Chip collecting box; 21. Chip discharge port; 22. Sliding port; 3. Scraper plate; 31. Limit plate; 32. Limit groove; 33. Connecting port; 4. Driving assembly; 41. Electric telescopic rod; 42. Push plate; 43. Limit block; 5. Screw conveyor; 51. Chip feed cylinder; 511. Chip feed port; 52. Chip discharge cylinder; 521. Chip drop port; 6. Trolley; 61. Push rod; 62. Universal wheel; 7. Connecting cylinder; 71. Screen plate; 72. Screen; 8. Vibration assembly; 81. Motor; 82. Cam; 9. Fan. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The present application embodiment discloses a chip cleaning device for a CNC milling machine. Figure 1 and Figure 2A chip cleaning device for a numerically controlled milling machine 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, 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 where the amount of splashing chips of the numerically controlled milling machine is the largest, 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 inclined, and a chip discharge port 21 is provided at the bottom of the bottom surface of the chip collecting box 2; the scraper plate 3 is vertically arranged, and the bottom surface of the scraper plate 3 is also inclined, 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 abuts against the bottom surface of the chip collecting box 2, and the scraper plate 3 can slide on the bottom surface of the chip collecting box 2; the driving assembly 4 is arranged on one side of the chip collecting box 2, and is used to drive the scraper plate 3 to slide; the screw conveyor 5 is arranged below the chip discharge port 21, and is used to receive and transport the chips.

[0034] The design of the top opening and the side opening of the chip box 2 allows the debris to smoothly enter the interior of the chip box 2, and the inclined bottom surface helps the debris to be concentrated to the chip discharge port 21. The design of the scraper plate 3 enables it to slide along the bottom surface of the chip box 2, effectively pushing the debris to the chip discharge port 21; the bottom surface of the scraper plate 3 is tightly fitted with the bottom surface of the chip box 2, ensuring that the debris will not be retained between the two, further improving the cleaning effect.

[0035] During operation, most of the chips generated by the CNC milling machine can splash into the chip box 2 through the top opening and side openings of the chip box 2, and then fall from the chip discharge port 21 into the screw conveyor 5 under the inclination of the bottom surface of the chip box 2, and accumulate at the chip discharge port 21; during cleaning, the drive assembly 4 drives the scraper plate 3 to move toward the direction close to the chip discharge port 21, and the chips in the chip box 2 are concentrated above the chip discharge port 21, and the screw conveyor 5 transports the chips falling from the chip discharge port 21.

[0036] Reference Figure 1 and Figure 2The driving assembly 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 collection box 2 away from the chip discharge port 21; the controller is arranged in the electric telescopic rod 41, 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 scraper plate 3 in the vertical direction; a sliding opening 22 is opened on the side of the chip collection box 2 close to the electric telescopic rod 41, and the size of the sliding opening 22 is adapted to the size of the push plate 42, and the push plate 42 can slide in the sliding opening 22. The drive assembly 4 composed of the electric telescopic rod 41 and the push plate 42 enables the scraper plate 3 to move between the chip discharge port 21 and the side wall of the chip collection box 2 under the action of the electric telescopic rod 41 and the push plate 42, so that the scraper plate 3 can collect the debris at the bottom of the chip collection box 2 to the chip discharge port 21.

[0037] During cleaning, it is started by the hand-held control switch, which first transmits a signal to the controller. The controller controls the movable end of the electric telescopic rod 41 to extend, and the movable end of the electric telescopic rod 41 drives the push plate 42 to move toward the direction close to the chip discharge port 21. The push plate 42 drives the scraper plate 3 to move toward the direction close to the chip discharge port 21, thereby concentrating the debris in the chip collection box 2 above the chip discharge port 21.

[0038] Reference Figure 1 and Figure 2 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. The screw conveyor 5 is arranged obliquely. The bottom of the screw conveyor 5 is located on the side close to the chip feed cylinder 51. A trolley 6 is arranged below the chip discharge cylinder 52. Four universal wheels 62 are arranged at the bottom of the trolley 6. A push rod 61 is fixedly arranged on one side of the top of the trolley 6.

[0039] The setting of the screw conveyor 5 further improves the processing efficiency of the debris, ensuring that the debris can be smoothly transported to the designated location. In the process of the screw conveyor 5 transporting metal debris, the metal debris is difficult to fall off from the screw conveyor 5 and cause secondary scattering, which improves the defect of the traditional cleaning device that the metal debris is easily scattered to both sides when the conveyor belt is used to transport the metal debris, and needs secondary cleaning. The screw conveyor 5 is tilted to provide space for the placement of the trolley 6. The setting of the trolley 6 facilitates the collection and transfer of debris.

[0040] Reference Figure 3 and Figure 4A limit plate 31 is fixedly provided on one side of the scraper plate 3 close to the electric telescopic rod 41. The limit plates 31 are vertically arranged and are provided with two. The cross-sections of the two limit plates 31 are both L-shaped. The two limit plates 31 are arranged in a horizontal direction. A limit groove 32 is formed between the scraper plates 3 on the side where the two limit plates 31 are close to each other; a limit block 43 is fixedly connected to both sides of the push plate 42. The size of the limit block 43 is adapted to the size of the limit groove 32, and the limit block 43 is slidably arranged in the limit groove 32 along the vertical direction.

[0041] The design of the limiting plate 31 and the limiting groove 32 can limit the scraper plate 3 in a vertical state, so that when the electric telescopic rod 41 pushes the push plate 42 to move, the push plate 42 can drive the scraper plate 3 to move in the direction close to the chip discharge port 21, and can move obliquely along the bottom surface of the chip collection box 2, so that the scraper plate 3 can not only move in the horizontal direction under the action of the push plate 42, but also move in the oblique direction of the bottom surface of the chip collection box 2, so that the push plate 42 is more stable when pushing the scraper plate 3, avoiding the problem of incomplete scraping caused by the looseness between the push plate 42 and the scraper plate 3. At the same time, the cooperation between the limiting block 43 and the limiting groove 32 can effectively prevent the push plate 42 from deflecting or falling off during the sliding process, thereby improving the reliability and safety of the entire device.

[0042] Reference Figure 2 and Figure 5 The scraper plate 3 is provided with a connecting port 33, the size of which matches that of the push plate 42, and the size of which also matches that of the stop block 43; when the scraper plate 3 moves to the top of the chip discharge port 21 and close to the electric telescopic rod 41, the push plate 42 and the stop block 43 are opposite to the connecting port 33 in the horizontal direction; when the push plate 42 and the stop block 43 are aligned with the connecting port 33, the push plate 42 and the stop block 43 can slide in the connecting port 33 in the horizontal direction. The connecting port 33 on the scraper plate 3 matches the size of the push plate 42 and the stop block 43, ensuring that when the scraper plate 3 moves to the top of the chip discharge port 21 and close to the electric telescopic rod 41, the push plate 42 and the stop block 43 can smoothly enter the connecting port 33 and slide therein. The push plate 42 is provided with a plurality of fans 9, which can blow air downward.

[0043] When the scraper plate 3 moves to above the chip discharge port 21 and close to one side of the electric telescopic rod 41 under the action of the electric telescopic rod 41 and the push plate 42, the debris at the bottom of the chip collection box 2 is concentrated to the side of the scraper plate 3 away from the push plate 42 and is located above the chip discharge port 21. At this time, the push plate 42 and the limit block 43 are aligned with the connecting port 33; the electric telescopic rod 41 continues to extend, and the scraper plate 3 does not move. The push plate 42 and the limit block 43 continue to move in the direction away from the electric telescopic rod 41 under the action of the electric telescopic rod 41, and move to above the chip discharge port 21. Until the electric telescopic rod 41 is extended 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 collection box 2 away from the electric telescopic rod 41. When the electric telescopic rod 41 is extended to its longest state, the fan 9 is located above the chip discharge port 21. At this time, the controller controls the fan 9 to start, and the fan 9 blows air downward to blow the debris between the fan 9 and the chip discharge port 21 toward the chip discharge port 21, helping to push and disperse the debris, thereby improving the debris collection efficiency and reducing the possibility of debris adhering to the push plate 42 or the scraper plate 3.

[0044] Reference Figure 2 and Figure 6 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 collecting 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, and the bottom of the connecting tube 7 is adapted to the size of the chip feed port 511. The setting of the connecting tube 7 makes the connection between the chip discharge port 21 and the chip feed tube 51 more stable and reliable, avoiding leakage or blockage of debris during the transmission process. The top of the connecting tube 7 is adapted to the size of the chip discharge port 21, ensuring that the debris can smoothly enter the connecting tube 7 from the chip discharge port 21, and the debris will not be stuck or scattered due to size mismatch. Similarly, the bottom of the connecting tube 7 is adapted to the size of the chip feed port 511, ensuring that the debris can smoothly enter the chip feed tube 51, thereby improving the transmission efficiency and reliability of the entire system.

[0045] Reference Figure 2 and Figure 6The side 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. The sieve plate 71 is provided with a number of evenly distributed sieve holes. The size of the sieve holes is small, and most of the debris cannot fall from the sieve holes. Only fine particles in the debris can fall from the sieve holes. When the debris falls from the chip discharge port 21, it can first fall on the sieve plate 71, and then pass through the sieve plate 71 to fall into the chip inlet 511. When the debris falls from the chip discharge port 21, it can first fall on 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, so as to prevent the fine particles from entering the screw conveyor 5 and causing damage to the screw conveyor 5. A recovery box can be provided below the sieve plate 71 to receive the fine particles falling from the sieve plate 71.

[0046] Reference 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 to drive the sieve plate 71 to vibrate. The sieve plate 71 can swing freely, thereby playing a buffering role when debris falls, 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 feed it into the chip inlet 511, thereby improving the efficiency and reliability of debris collection. The use of the vibration assembly 8 can also effectively prevent debris from clogging the sieve plate 71, ensuring the continuous and stable operation of the cleaning device. In addition, the use of the vibration assembly 8 can also make it easier for fine particles in the debris to fall from the sieve plate 71, preventing it from entering the screw conveyor 5.

[0047] Reference 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 fixing rod is set on the frame 1, and the cam 82 is fixedly connected to the output shaft of the motor 81, and the top of the cam 82 is in contact with the screen plate 71. The motor 81 and the cam 82 of the vibration assembly 8 are used in conjunction with each other, so that the screen plate 71 can vibrate effectively. This design can make the debris more evenly distributed in the chip inlet 511, improve the transportation efficiency of the debris, and avoid the accumulation of debris causing blockage. Vibration can also further separate fine particles in the debris to prevent them from entering the screw conveyor 5 and causing damage to the screw conveyor 5.

[0048] Reference Figure 2 and Figure 6A screen 72 is provided at the bottom of the screen plate 71. 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 feed tube 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 feed port 511. The screen 72 can block the gap, so that the connecting tube 7 is always in a closed state, and the debris is prevented from scattering from the gap between the screen plate 71 and the chip feed port 511 when the screen plate 71 vibrates.

[0049] The implementation principle of a chip cleaning device for a CNC milling machine in the embodiment of the present application is as follows: During operation, most of the chips generated by the CNC milling machine can splash into the chip box 2 through the top opening and side openings of the chip 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 box 2, and accumulate in the chip discharge port 21, the connecting tube 7 and the chip feed tube 51.

[0050] When the debris accumulates at the chip discharge port 21 to a certain extent and needs to be cleaned, it is started by the hand-held control switch, which first transmits a signal to the controller, and the controller controls the active end of the electric telescopic rod 41 to extend. The controller also starts the screw conveyor 5 to transport the debris accumulated in the chip discharge port 21, the connecting tube 7 and the chip feed tube 51; the active end of the electric telescopic rod 41 drives the push plate 42 to move toward the direction close to the chip discharge port 21, and the push plate 42 drives the scraper plate 3 to move toward the direction close to the chip discharge port 21, thereby concentrating the debris in the chip collection box 2 above the chip discharge port 21.

[0051] The controller controls the electric telescopic rod 41 to extend, and at the same time as the screw conveyor 5 is started, the controller also controls the motor 81 to start, and the output shaft of the motor 81 drives the cam 82 to rotate, and 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 debris more evenly distributed in the chip inlet 511, thereby improving the transportation efficiency of the debris and avoiding blockage caused by the accumulation of debris; the vibration can also further separate the fine particles in the debris, and the fine particles in the debris can fall through the sieve holes of the sieve plate 71, thereby avoiding their entry into the screw conveyor 5 and causing damage to the screw conveyor 5.

[0052] When the scraper plate 3 moves to above the chip discharge port 21 and close to one side of the electric telescopic rod 41 under the action of the electric telescopic rod 41 and the push plate 42, the debris at the bottom of the chip collection box 2 is concentrated to the side of the scraper plate 3 away from the push plate 42 and located above the chip discharge port 21. At this time, the push plate 42 and the limit block 43 are aligned with the connecting port 33; the controller controls the electric telescopic rod 41 to continue to extend, and the scraper plate 3 does not move. The push plate 42 and the limit block 43 continue to move in the direction away from the electric telescopic rod 41 under the action of the electric telescopic rod 41, and move to above the chip discharge port 21. When the electric telescopic rod 41 is extended 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 collection box 2 away from the electric telescopic rod 41. When the electric telescopic rod 41 is extended to its longest state, the fan 9 is located above the chip discharge port 21. At this time, the controller controls the fan 9 to start, and the fan 9 blows air downward to blow the debris between the fan 9 and the chip discharge port 21 toward the chip discharge port 21, helping to push and disperse the debris, thereby improving the debris collection efficiency and reducing the possibility of debris adhering to the push plate 42 or the scraper plate 3.

[0053] At the same time, the screw conveyor 5 continues to work, transporting the debris from the chip inlet tube 51 to the chip outlet tube 52 , and discharging the debris through the chip outlet, so that the debris falls into the trolley 6 .

[0054] After the debris is visually cleaned, the cleaning device is turned off by controlling the handheld control switch, and the controller receives the shutdown signal, shortens the electric telescopic rod 41, and stops the screw conveyor 5 and the motor 81; when the movable end of the electric telescopic rod 41 is shortened, the push plate 42 is driven to move in the direction close to the electric telescopic rod 41 until the limit block 43 enters the limit groove 32 through the connecting port 33 and abuts against the side wall of the limit groove 32, and the push plate 42 drives the limit plate 31 and the scraper plate 3 to move together in the direction close to the electric telescopic rod 41 until the scraper plate 3 abuts against the inner wall of the chip collection box 2, and then returns to the initial state, and the controller controls the electric telescopic rod 41 to stop working, completing the operation process of the entire cleaning device, and then the debris can be transferred manually through the trolley 6.

[0055] 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 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).

2. A chip cleaning device for a CNC milling machine according to claim 1, characterized in that: 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 scraper plates (3) on the sides where the two limiting plates (31) are close to each other; a limiting block (43) is fixedly connected to both sides of the push plate (42); the size of the limiting block (43) is matched with the size of the limiting groove (32); the limiting block (43) is slidably arranged in the limiting groove (32) along the vertical direction.

3. A chip cleaning device for a CNC milling machine according to claim 2, characterized in that: 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.

4. A chip cleaning device for a CNC milling machine according to claim 3, characterized in that: A plurality of fans (9) are provided on the push plate (42).

5. The chip cleaning device for a CNC milling machine according to claim 1, characterized in that: 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 collecting 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).

6. A chip cleaning device for a CNC milling machine according to claim 5, characterized in that: 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 chips fall from the chip discharge opening (21), they first fall onto the sieve plate (71) and then pass through the sieve plate (71) and fall into the chip feed opening (511).

7. A chip cleaning device for a CNC milling machine according to claim 6, characterized in that: 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.

8. The chip cleaning device for a CNC milling machine according to claim 7, characterized in that: 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 the top of the cam (82) is in contact with the screen plate (71).

9. A chip cleaning device for a CNC milling machine according to claim 8, characterized in that: A screen (72) is provided at the bottom of the sieve plate (71), and the screen (72) is made of elastic material chips. One side of the screen (72) is fixedly connected to the bottom of the sieve plate (71), and the other side is fixedly connected to the top surface of the chip feeding cylinder (51).

10. The chip cleaning device for a CNC milling machine according to claim 1, characterized in that: 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 arranged below the chip outlet cylinder (52).

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