Vertical numerical control milling machine

Abstract

The invention discloses a vertical numerical control milling machine, and relates to the technical field of numerical control milling machines. Comprising a machine body, a first shell, a second shell, a blocking set and a cleaning device, the slidable blocking set is arranged in the first shell and the second shell, independent control is achieved in cooperation with a valve block and a rope winding device, cooling liquid and cleaning liquid can be accurately divided in the machining stage and the cleaning stage, mutual mixed flow of the two kinds of liquid is avoided, and the machining efficiency is improved. Independent operation of processing and cleaning loops is ensured; and meanwhile, the blocking set can directionally scrape and push the metal chippings on the bottom face of the shell and the top face of the filter plate in the sliding process, the problem that the metal chippings are attached and accumulated is effectively solved, and the cleaning efficiency and the operation stability of the equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of CNC milling machine technology, and more particularly to a vertical CNC milling machine. Background Technology

[0003] As the core equipment for the production of precision parts, CNC milling machines continuously generate a large amount of metal debris with oil and cutting fluid adhering to them during the milling process, which poses multiple constraints on the production process. The residue of metal debris is a key factor affecting the quality of parts and can also trigger secondary cutting, resulting in dimensional deviations, excessive surface roughness, and reduced part qualification rate.

[0004] From the perspective of production efficiency and equipment maintenance, existing CNC milling machines generally lack automated chip removal functions and still rely on manual shutdown for cleaning. This method is not only slow and prolongs the production cycle, but also increases labor intensity and operational risks for operators due to their exposure to high temperatures, sharp chips, and oily cutting fluid. Furthermore, chip accumulation on critical parts such as the worktable and lead screw accelerates component wear, leading to machine tool failures and shortening equipment lifespan. In addition, the inability to promptly recycle metal chips results in resource waste.

[0005] In summary, existing chip handling methods have significant shortcomings in terms of automation level, cleaning efficiency, and resource recovery, and there is an urgent need to develop automated chip cleaning devices adapted to CNC milling machines. Summary of the Invention

[0007] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a vertical CNC milling machine that uses water washing to clean the milling cutter and workpiece mounting platform. This effectively removes residual metal debris from the surface, preventing the debris from scratching the workpiece and affecting machining accuracy during subsequent processing. Furthermore, by separating the cleaned metal debris from the cleaning solution, the machine enables centralized collection and recycling of the metal debris, reducing resource waste and improving production efficiency.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A vertical CNC milling machine includes: a machine body, a first housing, a second housing, a blocking group, and a cleaning device; a milling cutter is mounted on the machine body and located inside the first housing; the cleaning device is rotated and connected to the annular upper end face of the first housing; two parallel partitions are arranged inside the second housing below the filter plate, and the lower part of the second housing is divided into three independent chambers by the partitions and the side wall of the second housing. The bottom of the first housing is connected to the second housing below via a first pipe and a second pipe; the two blocking groups are slidably disposed inside the first housing and the second housing respectively; in the initial state, one blocking group is located between the first pipe and the second pipe; the other blocking group is located above the filter plate, between the first chamber and the second chamber; a valve plate is slidably disposed at the upper end of the second pipe, the valve plate is arranged parallel to the bottom surface of the first housing, and the valve plate is used to switch the opening and closing state of the upper opening of the first pipe.

[0009] In one embodiment, a three-axis motion platform is fixedly installed in the internal cavity of the first housing. The three-axis motion platform includes a Z-axis electric slide rail, an X-axis electric slide rail, a base, a turntable, an electric slide rail, and a clamping plate. The Z-axis electric slide rail is fixedly installed inside the first housing and is connected to the X-axis electric slide rail, which is also connected to the base. A turntable is rotatably mounted on the base, and the electric slide rail is fixedly installed on the turntable and connected to the clamping plate.

[0010] In one embodiment, the Z-axis electric slide rail, X-axis electric slide rail, and electric slide rail all adopt the same protective structure: the opening of the outer shell of each slide rail is set facing downward and extends downward for a certain distance; the slider corresponding to each slide rail first extends downward out of the opening of the outer shell, and then bends upward to connect with the corresponding driven component.

[0011] In one embodiment, the cleaning device includes an assembly ring, a first ring tube, a second ring tube, and a connecting pipe. The assembly ring is rotatably connected to the upper end of the first housing. Both the first and second ring tubes are installed inside the assembly ring and are interconnected via the connecting pipe. Multiple nozzles are arranged on the first and second ring tubes, with the nozzles on the first ring tube facing the milling cutter for spray cleaning. The nozzles on the second ring tube face the three-axis motion platform for spray cleaning. The assembly ring is connected to a first servo motor via a belt, and the first servo motor drives the assembly ring to reciprocate the first and second ring tubes.

[0012] In one embodiment, the blocking assembly includes: a baffle and a sliding plate, the baffle and the sliding plate being slidably connected, and a spring being provided at the slidable connection, and a rectangular slider being provided on the sliding plate; the side wall of the baffle is provided with a first groove and a second groove arranged vertically.

[0013] In one embodiment, the first housing and the second housing are provided with inclined grooves corresponding to rectangular sliders; the first housing and the second housing are provided with guide plates, one end of the guide plate is a rotatable structure, and a limiting block restricts the maximum flipping angle of one end of the guide plate to form a slope.

[0014] In one embodiment, a connecting rod is fixedly provided at one end of the valve plate, and the connecting rod extends outward from the first housing; a first spring rod is provided between the connecting rod and the outer wall of the first housing; a protrusion is provided at the other end of the top surface of the valve plate; when the baffle moves to the position between the first pipe and the second pipe, the baffle abuts against the protrusion and pushes the valve plate through the protrusion, thereby opening the first pipe.

[0015] In one embodiment, the rope winding device pulls two blocking groups respectively using two steel ropes; the rope winding device includes an assembly plate, a first spool, a second spool, a protrusion, a limiting plate, a push plate, a second servo motor, and an electric push rod; the second servo motor is fixedly mounted on the assembly plate, and two one-way bearings are provided on the output shaft of the second servo motor. The two one-way bearings are locked in opposite directions, and the output shaft of the second servo motor is locked in a stationary state; the first spool and the second spool are respectively wound with two steel ropes in opposite directions; both the first spool and the second spool are fixedly provided with protrusions; one end of each of the two limiting plates is elastically connected to the assembly plate through a spring rod, and the other end of each of the two limiting plates is respectively attached to the bottom and top surfaces of the two protrusions; the push plate has an approximately "U" shaped structure and is arranged between the two limiting plates, with both ends of the push plate respectively attached to the two limiting plates; the electric push rod is connected to the push plate and is used to drive the push plate to move left and right.

[0016] The beneficial effects of this invention are as follows: (1) The present invention provides a sliding blocking group in the first housing and the second housing, and achieves independent control in conjunction with the valve plate and the rope winding device. It can accurately separate the coolant and the cleaning liquid in the processing stage and the cleaning stage respectively, avoid the two liquids from mixing, and ensure that the processing and cleaning circuits operate independently. At the same time, the blocking group can directionally scrape and push the metal debris on the bottom surface of the housing and the top surface of the filter plate during the sliding process, effectively solving the problem of metal debris adhesion and accumulation, and improving the cleaning efficiency and operation stability of the equipment.

[0017] (2) The present invention adopts a tilting sliding and lifting avoidance structure design for the blocking group, so that the baffle avoids metal debris when moving upward and reliably pushes the debris when moving downward, realizing unidirectional efficient conveying and centralized collection of metal debris; combined with a rotatable double ring pipe cleaning device and a partitioned independent solid-liquid separation chamber, the coolant and cleaning liquid are recycled, which improves the processing accuracy and cleaning effect, reduces material consumption, and improves the degree of automation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of one side of the structure of the present invention; Figure 3 This is a schematic diagram of the three-axis motion platform structure of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the electric slide rail of the present invention; Figure 5 This is a schematic diagram of the cleaning device of the present invention; Figure 6 This is a schematic diagram of the baffle structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the first housing of the present invention; Figure 8 This is a schematic diagram of the valve plate structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the second housing of the present invention; Figure 10 This is a schematic diagram of the rope winding device of the present invention; In the diagram: 1. Body; 11. Lifting slider; 12. Milling cutter; 2. First housing; 21. Protective door; 22. First pipe; 23. Second pipe; 24. Valve plate; 241. Connecting rod; 242. First spring rod; 243. Protrusion; 3. Second housing; 31. Filter plate; 32. Partition plate; 30. Return pipe; 311. Second spring rod; 312. Vibrator; 3-1. First chamber; 3-2. Second chamber; 3-3. Third chamber; 4. Three-axis motion platform; 41. Z-axis electric slide rail; 42. X-axis electric slide rail; 43. Base; 44. Turntable; 45. Electric slide rail; 46. Clamping device 40. Plate; 401. Outer shell; 5. Blocking group; 51. Baffle; 52. Slide plate; 53. Guide plate; 54. Limiting block; 50. Slide groove; 511. First groove; 512. Second groove; 521. Rectangular block; 6. Rope winding device; 60. Steel rope; 61. Assembly plate; 62. First spool; 63. Second spool; 64. Protrusion; 65. Limiting plate; 66. Push plate; 67. Second servo motor; 68. Electric push rod; 651. Spring rod; 7. Cleaning device; 71. Assembly ring; 72. First ring tube; 73. Second ring tube; 74. Connecting tube; 75. First servo motor. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0022] First embodiment: Please see Figures 1-2 This invention discloses a vertical CNC milling machine, comprising: a machine body 1, a first housing 2, a second housing 3, a three-axis motion platform 4, a blocking group 5, and a cleaning device 7; Please see Figures 1-2The machine body 1 is fixedly equipped with a lifting slider 11 that can reciprocate in the vertical direction. A milling cutter 12 is fixedly installed on the lifting slider 11, allowing the milling cutter 12 to move along the Y-axis. The milling cutter 12 is powered by a matching drive motor and rotates at high speed to complete the milling operation on the workpiece. The first housing 2 covers the milling cutter 12. During the cutting, milling and other processing operations of the milling cutter 12 on the workpiece, the first housing 2 can effectively block the high-speed flying metal chips, avoiding the spillage of chips that pollute the working environment or pose a safety hazard to the operator. A protective door 21 is hinged to one side of the first housing 2. A three-axis motion platform 4 is fixedly installed in the internal cavity of the first housing 2. The three-axis motion platform 4 has three-dimensional motion adjustment functions in the X, Y, and R axes. It is used to clamp the workpiece to be processed and to precisely adjust the spatial orientation, processing angle, and feed position of the workpiece according to the processing requirements to ensure the processing accuracy and processing range of the milling cutter 12. The cross-section of the top end face of the first housing 2 is set as a circular structure. The cleaning device 7 is connected to the circular upper end face of the first housing 2 by rotation. The cleaning device 7 can reciprocate along the circular end face, which can comprehensively perform high-pressure spray cleaning of the metal chips, coolant, and dirt remaining on the surface of the milling cutter 12 and the three-axis motion platform 4. The bottom of the first housing 2 is connected to the second housing 3 below through the first pipe 22 and the second pipe 23. The coolant mixed with metal shavings generated during the processing and the cleaning fluid containing shavings generated during the cleaning operation can be guided into the second housing 3 through the first pipe 22 and the second pipe 23. The second housing 3 has a built-in filter plate 31, which can efficiently complete the separation and recycling of metal shavings and coolant, and metal shavings and cleaning fluid, so as to realize the recycling of cutting fluid and cleaning fluid and the centralized collection and treatment of metal shavings. Please see Figure 3 The three-axis motion platform 4 includes a Z-axis electric slide rail 41, an X-axis electric slide rail 42, a base 43, a turntable 44, an electric slide rail 45, and a clamping plate 46. The Z-axis electric slide rail 41 is fixedly installed inside the first housing 2. The Z-axis electric slide rail 41 is connected to the X-axis electric slide rail 42, and the X-axis electric slide rail 42 is connected to the base 43. The turntable 44 is rotatably mounted on the base 43. The electric slide rail 45 is fixedly installed on the turntable 44 and is connected to the clamping plate 46 to achieve clamping and movement of the workpiece. Please see Figure 4The Z-axis electric slide rail 41, X-axis electric slide rail 42, and electric slide rail 45 all adopt the same protective structure: the opening of the outer shell 40 of each slide rail is set facing downward and extends downward for a certain distance; the corresponding slider 401 of each slide rail first extends downward out of the opening of the outer shell 40, and then bends upward to connect with the corresponding driven component; through the above-mentioned structure of the opening facing downward and the slider 401 extending downward and bending upward, metal chips, coolant and impurities can be effectively prevented from entering the interior of the outer shell 40 and adhering to the lead screw during the processing, thereby preventing problems such as jamming, wear and reduced accuracy of the lead screw during rotation; Please see Figure 5 The cleaning device 7 includes an assembly ring 71, a first ring tube 72, a second ring tube 73, and a connecting pipe 74. The assembly ring 71 is rotatably connected to the upper end of the first housing 2. The first ring tube 72 and the second ring tube 73 are both installed inside the assembly ring 71 and are interconnected through the connecting pipe 74. Multiple nozzles are arranged on the first ring tube 72 and the second ring tube 73 respectively. The nozzles on the first ring tube 72 are positioned towards the milling cutter 12 for spraying and cleaning the milling cutter 12. The nozzles on the second ring tube 73 are positioned towards the three-axis motion platform 4 for spraying and cleaning the three-axis motion platform 4. The assembly ring 71 is connected to the first servo motor 75 via a belt. The first servo motor 75 drives the assembly ring 71 to drive the first ring tube 72 and the second ring tube 73 to reciprocate and rotate, thereby achieving all-round cleaning of the milling cutter 12 and the three-axis motion platform 4. Please see Figure 2 Inside the second housing 3, below the filter plate 31, are two parallel partitions 32. These partitions 32 are arranged vertically and fixedly connected to the inner wall of the second housing 3. Through the separation between the partitions 32 and the side wall of the second housing 3, the lower part of the second housing 3 is divided into three independent chambers: a first chamber 3-1, a second chamber 3-2, and a third chamber 3-3. The first chamber 3-1 is specifically used to collect and store the clean coolant after solid-liquid separation; the second chamber 3-2 is specifically used to collect and store the clean cleaning fluid after separation; and the third chamber 3-3 is used to centrally store and temporarily store the separated metal fragments. The system separates the storage of debris and liquid to prevent mixing of different media. The bottoms of the first chamber 3-1 and the second chamber 3-2 are respectively connected to corresponding return pipes 30. Each return pipe 30 is equipped with a dedicated pump. Under the power of the pump, the coolant in the first chamber 3-1 can be returned to the first housing 2. The cleaning fluid in the second chamber 3-2 is returned to the first ring pipe 72 and the second ring pipe 73, achieving the recycling of coolant and cleaning fluid, improving resource utilization and reducing operating costs. The return pipe 30 connecting the second chamber 3-2 to the first ring pipe 72 and the second ring pipe 73 is a flexible hose. Please seeFigure 2 The number of the blocking groups 5 is set to two, and the two blocking groups 5 are slidably disposed inside the first housing 2 and the second housing 3 respectively; in the initial state, one blocking group 5 is located between the first pipe 22 and the second pipe 23, and is used to block the coolant during the processing stage to prevent the coolant from flowing into the second pipe 23; the other blocking group 5 is disposed above the filter plate 31, between the first chamber 3-1 and the second chamber 3-2, and is used to block the coolant from entering the second chamber 3-2 during the processing, so as to ensure that the coolant and the cleaning fluid are recycled separately and do not mix. The first housing 2 is slidably provided with a valve plate 24 at the upper end position corresponding to the second pipe 23. The valve plate 24 is arranged parallel to the bottom surface of the first housing 2, and the valve plate 24 realizes the switching between the opening and closing state of the upper opening of the first pipe 22.

[0023] Working principle of this invention: During the machining stage, the coolant and metal scrap mixture generated during milling flows into the lower second housing 3 through the first pipe 22 along the inner cavity of the first housing 2. The mixture undergoes solid-liquid separation treatment through the filter plate 31, where the metal scrap is retained and the clean coolant flows through the filter plate 31 into the first chamber 3-1 for temporary storage. The coolant in the first chamber 3-1 is then returned to the machining area inside the first housing 2 by the pump on the corresponding return pipe 30, realizing the circulation and reuse of the coolant. During the cleaning phase, the blocking group 5 inside the first housing 2 is moved by the drive mechanism, while the valve plate 24 is controlled to slide and close the upper opening of the first pipe 22, thus isolating the coolant circuit and switching to the cleaning fluid circuit. The cleaning fluid in the second chamber 3-2 is transported upward under the pressure of the pump body on the corresponding return pipe 30, and enters the first ring pipe 72 and the second ring pipe 73 in sequence, and is then sprayed out under high pressure through multiple nozzles arranged on the ring pipe. At the same time, the first servo motor 75 drives the assembly ring 71 to rotate the first ring pipe 72 and the second ring pipe 73, and sprays the milling cutter 12 and the three-axis motion platform 4 for all-round cleaning. The cleaning fluid and metal debris mixture generated after cleaning flows into the second housing 3 along the first housing 2 and the second pipe 23, and is separated from the metal debris by the filter plate 31. The separated cleaning fluid flows into the second chamber 3-2 for storage, so that the milling cutter 12 and the three-axis motion platform 4 can be cleaned again later.

[0024] Second embodiment: Since the bottom surface area of ​​the first housing 2 is relatively large, while the actual circulation flow of the coolant and cleaning fluid is limited, it is difficult to completely flush away the metal debris on the bottom surface of the first housing 2 by relying solely on liquid flow. As a result, some metal debris tends to adhere to and accumulate on the bottom surface of the first housing 2 for a long time. At the same time, the metal debris trapped on the filter plate 31 also needs to be moved to the third chamber 3-3 in a timely and reliable manner for centralized collection to avoid long-term accumulation that could clog the filter plate 31 and affect the solid-liquid separation efficiency.

[0025] During the sliding motion, the lower end faces of the two blocking groups 5 respectively fit into the bottom surface of the first housing 2 and the top surface of the filter plate 31, which can scrape and push the metal debris attached to the bottom surface of the first housing 2 and the metal debris stuck on the top surface of the filter plate 31, effectively cleaning the residual debris and pushing it to the designated area, thereby ensuring that the bottom surface of the housing is clean and the filter plate 31 is unobstructed. At the same time, it realizes the stable transportation and centralized collection of metal debris to the third chamber 3-3. The specific method is as follows: Please see Figure 6 , Figure 7 , Figure 9 The blocking assembly 5 includes a baffle 51 and a sliding plate 52. The baffle 51 and the sliding plate 52 are slidably connected, and a spring (not shown in the figure) is provided at the sliding connection. The spring causes the two baffles 51 to abut downwards against the bottom surface of the first housing 2 and the top surface of the filter plate 31, respectively. A rectangular slider 521 is provided on the sliding plate 52. The first housing 2 and the second housing 3 are provided with inclined grooves 50 corresponding to the rectangular slider 521. Gravity causes the two blocking assemblies 5 to slide to one side. The side wall of the baffle 51 has a first groove 511 and a second groove 512 arranged vertically. A guide plate 53 is provided on the first housing 2 and the second housing 3. One end of the guide plate 53 is rotatable. The structure includes a limiting block 54 that restricts the maximum flipping angle of one end of the guide plate 53, creating a slope. When the baffle 51 slides downwards under gravity, the guide plate 53 passes through the upper first groove 511. When the baffle 51 moves in the opposite direction, it overlaps the second groove 512 through the slope of one end of the guide plate 53, causing the baffle 51 to rise. At this time, the guide plate 53 passes through the lower second groove 512. The function of lifting the baffle 51 is to avoid metal debris on the bottom surface of the first housing 2 and the top surface of the filter plate 31. When the two baffles 51 move downwards, they scrape away the metal debris on the bottom surface of the first housing 2 and the top surface of the filter plate 31, allowing the metal debris to enter the first pipe 22 and the third chamber 3-3. Please see Figure 8One end of the valve plate 24 is fixedly provided with a connecting rod 241, which extends outward from the first housing 2. A first spring rod 242 is provided between the connecting rod 241 and the outer wall of the first housing 2. The first spring rod 242 provides an elastic restoring force to the valve plate 24, so that the valve plate 24 tends to keep the first pipe 22 closed. The other end of the top surface of the valve plate 24 is provided with a protrusion 243. When the baffle 51 moves to the position between the first pipe 22 and the second pipe 23, the baffle 51 abuts against the protrusion 243 and pushes the valve plate 24 through the protrusion 243, overcoming the elastic force of the first spring rod 242 and causing the valve plate 24 to move, thereby opening the first pipe 22 and realizing the flow of coolant during the processing stage. Please see Figure 10 The rope winding device 6 uses two steel ropes 60 to pull the two blocking groups 5 to achieve reset movement. The rope winding device 6 includes an assembly plate 61, a first spool 62, a second spool 63, a protrusion 64, a limiting plate 65, a push plate 66, a second servo motor 67, and an electric push rod 68. The second servo motor 67 is fixedly installed on the assembly plate 61. The output shaft of the second servo motor 67 is provided with two one-way bearings (not shown in the figure). The two one-way bearings are locked in opposite directions, and the output shaft of the second servo motor 67 is locked in a stationary state. The first spool 62 and the second spool 63 are respectively wound with two steel ropes 60, and the winding directions of the two are opposite. The first spool 62 is driven by the steel ropes 60. Pulling the blocking assembly 5 inside the first housing 2, the second spool 63 pulls the blocking assembly 5 inside the second housing 3 via the steel rope 60; both the first spool 62 and the second spool 63 are fixedly provided with protrusions 64; one end of each of the two limiting plates 65 is elastically connected to the assembly plate 61 via spring rods 651, and the other ends of the two limiting plates 65 are respectively attached to the bottom and top surfaces of the two protrusions 64 to achieve limiting constraint on the spools; the push plate 66 has an approximately "U" shaped structure and is arranged between the two limiting plates 65, and both ends of the push plate 66 are respectively attached to the two limiting plates 65; the electric push rod 68 is connected to the push plate 66 and is used to drive the push plate 66 to move left and right, thereby achieving control of the limiting plates 65; The working process of the rope winding device 6 is as follows: The electric push rod 68 drives the push plate 66 to move to the left, pushing the left limiting plate 65 to move, so that the left limiting plate 65 disengages from the protrusion 64 on the first spool 62. At this time, the blocking group 5 in the first housing 2 slides under the action of gravity. During this process, the first spool 62 rotates clockwise with the release of the steel rope 60 through the corresponding one-way bearing; The electric push rod 68 drives the push plate 66 to reset to the right, and the left limiting plate 65 resets and reloads under the action of the spring rod 651. The new fitting attaches to the bottom surface of the protrusion 64 on the first spool 62, thereby limiting the first spool 62 and thus positioning and constraining the blocking assembly 5 inside the first housing 2; the left limiting plate 65 disengages from the protrusion 64 on the first spool 62 again, and then the second servo motor 67 drives the first spool 62 to rotate counterclockwise through the corresponding one-way bearing, while the one-way bearing and output shaft of the second spool 63 rotate freely, pulling the blocking assembly 5 inside the first housing 2 through the steel cable 60; similarly, the electric push rod 68 drives the push plate 66 to move to the right, pushing the right limit plate 65 to move, causing the right limit plate 65 to disengage from the protrusion 64 on the second spool 63. The blocking assembly 5 inside the second housing 3 slides under the action of gravity. During this process, through the corresponding one-way bearing, the second spool 63 rotates counterclockwise as the steel rope 60 is released. The electric push rod 68 drives the push plate 66 to reset to the left. The right limit plate 65 resets under the action of the spring rod 651 and re-attaches to the top surface of the protrusion 64 on the second spool 63. This achieves the limiting of the second spool 63, thereby positioning and constraining the blocking group 5 inside the second housing 3; the right limiting plate 65 disengages from the protrusion 64 on the second spool 63 again, and then the second servo motor 67 drives the second spool 63 to rotate clockwise through the corresponding one-way bearing, while the one-way bearing and output shaft corresponding to the first spool 62 rotate freely, pulling the blocking group 5 inside the second housing 3 through the steel rope 60; through the above control method, the two blocking groups 5 can be driven independently; Please see Figure 9 The four corners of the filter plate 31 are connected to the second housing 3 via the second spring rod 311, and a vibrator 312 is provided on the bottom surface of the filter plate 31. The vibrator 312 causes the filter plate 31 to vibrate at high frequency, thereby placing metal scraps stuck in the filter holes of the filter plate 31.

[0026] Working principle: When cleaning the bottom surface of the first housing 2, the electric push rod 68 drives the push plate 66 to move to the left, causing the left limiting plate 65 to disengage from the protrusion 64 on the first spool 62; the second servo motor 67 drives the first spool 62 to rotate counterclockwise, pulling the blocking group 5 through the steel rope 60. Subsequently, the blocking group 5 inside the first housing 2 slides along a preset trajectory under the action of gravity, scraping and pushing away the metal debris remaining on the bottom surface of the first housing 2; when the baffle 51 moves to the upper position of the first pipe 22, the baffle 51 pushes the valve plate 24 through the protrusion 243, so that the first pipe 22 is in the open state, and the scraped metal debris falls into the interior of the second housing 3 along the first pipe 22; after the action is completed, the left limiting plate 65 and the protrusion 64 on the first spool 62 are engaged again, realizing the limiting constraint of the first spool 62, so that the blocking group 5 is stably stopped between the first pipe 22 and the second pipe 23; When cleaning the top surface of the filter plate 31, the electric push rod 68 drives the push plate 66 to move to the right, causing the right limit plate 65 to disengage from the protrusion 64 on the second spool 63; the second servo motor 67 drives the second spool 63 to rotate clockwise, pulling the blocking group 5 through the steel rope 60. The blocking group 5 slides under the action of gravity, scraping and pushing the metal debris trapped on the top surface of the filter plate 31 until the metal debris is sent into the third chamber 3-3 for centralized collection; then the second servo motor 67 continues to drive the second spool 63 to rotate clockwise, pulling the blocking group 5 back to the position above the first chamber 3-1 and the second chamber 3-2. At the same time, the right limit plate 65 and the protrusion 64 on the second spool 63 re-engage, realizing the limiting constraint of the second spool 63, so that the blocking group 5 is stably stationed above the position between the first chamber 3-1 and the second chamber 3-2.

Claims

1. A vertical CNC milling machine, comprising: The machine body (1), first housing (2), second housing (3), blocking group (5), and cleaning device (7) are characterized in that: a milling cutter (12) is installed on the machine body (1) and located inside the first housing (2); the cleaning device (7) is connected to the annular upper end face of the first housing (2) by rotation; two parallel partitions (32) are provided inside the second housing (3) below the filter plate (31), and the lower part of the second housing (3) is divided into three independent chambers by the separation effect of the partitions (32) and the side wall of the second housing (3); The bottom of the first housing (2) is connected to the lower second housing (3) through the first pipe (22) and the second pipe (23); the two blocking groups (5) are slidably arranged inside the first housing (2) and the second housing (3); in the initial state, one blocking group (5) is located between the first pipe (22) and the second pipe (23); the other blocking group (5) is located above the filter plate (31) and between the first chamber (3-1) and the second chamber (3-2); a valve plate (24) is slidably arranged at the upper end of the second pipe (23), and the valve plate (24) is arranged parallel to the bottom surface of the first housing (2), and the opening and closing states of the upper opening of the first pipe (22) are switched through the valve plate (24).

2. The vertical CNC milling machine according to claim 1, characterized in that: A three-axis motion platform (4) is fixedly installed in the internal cavity of the first housing (2). The three-axis motion platform (4) includes a Z-axis electric slide rail (41), an X-axis electric slide rail (42), a base (43), a turntable (44), an electric slide rail (45), and a clamping plate (46). The Z-axis electric slide rail (41) is fixedly installed inside the first housing (2). The Z-axis electric slide rail (41) is connected to the X-axis electric slide rail (42), and the X-axis electric slide rail (42) is connected to the base (43). The turntable (44) is rotatably provided on the base (43). The electric slide rail (45) is fixedly installed on the turntable (44), and the electric slide rail (45) is connected to the clamping plate (46).

3. A vertical CNC milling machine according to claim 2, characterized in that: The Z-axis electric slide rail (41), X-axis electric slide rail (42) and electric slide rail (45) all adopt the same protective structure: the opening of the outer shell (40) of each slide rail is set facing downward and extends downward for a certain distance; the corresponding slider (401) of each slide rail first extends downward out of the opening of the outer shell (40) and then bends upward to connect with the corresponding driven component.

4. A vertical CNC milling machine according to claim 1, characterized in that: The cleaning device (7) includes an assembly ring (71), a first ring tube (72), a second ring tube (73), and a connecting tube (74); the assembly ring (71) is rotatably connected to the upper end of the first housing (2), the first ring tube (72) and the second ring tube (73) are both installed in the assembly ring (71), and the first ring tube (72) and the second ring tube (73) are connected to each other through the connecting tube (74); multiple nozzles are arranged on the first ring tube (72) and the second ring tube (73); the assembly ring (71) is connected to the first servo motor (75) by a belt, and the first servo motor (75) drives the assembly ring (71) to drive the first ring tube (72) and the second ring tube (73) to perform reciprocating rotational motion.

5. A vertical CNC milling machine according to claim 4, characterized in that: The nozzles on the first ring pipe (72) are set towards the milling cutter (12) to spray and clean the milling cutter (12); the nozzles on the second ring pipe (73) are set towards the three-axis motion platform (4) to spray and clean the three-axis motion platform (4).

6. A vertical CNC milling machine according to claim 1, characterized in that: The blocking assembly (5) includes: a baffle (51) and a sliding plate (52). The baffle (51) and the sliding plate (52) are slidably connected, and a spring is provided at the slidable connection. A rectangular slider (521) is provided on the sliding plate (52). The side wall of the baffle (51) is provided with a first groove 11 and a second groove (512) arranged vertically.

7. A vertical CNC milling machine according to claim 6, characterized in that: The first housing (2) and the second housing (3) are provided with inclined grooves (50) corresponding to the rectangular sliders (521); the first housing (2) and the second housing (3) are provided with guide plates (53).

8. A vertical CNC milling machine according to claim 7, characterized in that: One end of the guide plate (53) is a rotatable structure, and the limiting block (54) restricts the maximum flipping angle of one end of the guide plate (53) to form a slope.

9. A vertical CNC milling machine according to claim 1, characterized in that: One end of the valve plate (24) is fixedly provided with a connecting rod (241), which extends outward from the first housing (2); a first spring rod (242) is provided between the connecting rod (241) and the outer wall of the first housing (2); a protrusion (243) is provided at the other end of the top surface of the valve plate (24); when the baffle (51) moves between the first pipe (22) and the second pipe (23), the baffle (51) abuts against the protrusion (243) and pushes the valve plate (24) through the protrusion (243) to open the first pipe (22).

10. A vertical CNC milling machine according to claim 1, characterized in that: The rope winding device (6) pulls the two blocking groups (5) respectively through two steel ropes (60); the rope winding device (6) includes an assembly plate (61), a first spool (62), a second spool (63), a protrusion (64), a limiting plate (65), a push plate (66), a second servo motor (67), and an electric push rod (68); the second servo motor (67) is fixedly installed on the assembly plate (61), and two one-way bearings are provided on the output shaft of the second servo motor (67). The two one-way bearings are locked in opposite directions, and the output shaft of the second servo motor (67) is locked in a stationary state; the first spool (62) and the second spool (63) Two steel ropes (60) are wound in opposite directions respectively; protrusions (64) are fixedly provided on the first spool (62) and the second spool (63); one end of the two limiting plates (65) is elastically connected to the assembly plate (61) through the spring rod (651), and the other end of the two limiting plates (65) is respectively attached to the bottom and top surfaces of the two protrusions (64); the push plate (66) has an approximately "U" shaped structure and is arranged between the two limiting plates (65), and the two ends of the push plate (66) are respectively attached to the two limiting plates (65); the electric push rod (68) is connected to the push plate (66) and drives the push plate (66) to move left and right.

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