Numerical control double-head milling machine

By designing a CNC double-head milling machine, adopting a double-head structure and a milling fluid system, the problems of low efficiency and difficulty in guaranteeing accuracy of existing CNC milling machines are solved, and the synchronous machining of two sides of the workpiece and the guarantee of accuracy are realized.

CN121945847APending Publication Date: 2026-05-01JIANGSU BAOJIN STEEL INTELLIGENT MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU BAOJIN STEEL INTELLIGENT MFG CO LTD
Filing Date
2026-03-06
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Most existing CNC milling machines are single-head designs, resulting in low processing efficiency. In particular, when it is necessary to mill both ends of the workpiece at the same time, multiple clamping is required, which leads to long processing cycles and difficulty in guaranteeing accuracy.

Method used

Design a CNC double-head milling machine with a double-head structure. It achieves simultaneous machining of both sides of the workpiece through a moving mechanism and a blanking assembly. Combined with a milling fluid cooling and lubrication system, it improves machining efficiency and ensures accuracy.

Benefits of technology

It enables simultaneous machining of both sides of the workpiece, reduces the number of clamping operations, improves machining efficiency, extends tool life, and ensures the dimensional accuracy and surface quality of the workpiece.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121945847A_ABST
    Figure CN121945847A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of numerical control milling machines, and particularly discloses a numerical control double-head milling machine which comprises a base, an objective table and a portal frame. The objective table is arranged on the top surface of the base; the portal frame is installed on the top face of the base and provided with a material pressing assembly. A pair of supporting tables is arranged outside the base; the pair of supporting tables are symmetrically arranged on the two sides, away from each other, of the base. A carrying plate is arranged on the top faces of the supporting tables. A spindle box is arranged on the top face of the carrying plate. Milling cutters are mounted at the output ends of the spindle boxes; a moving mechanism capable of driving the carrying plate to move in the three-dimensional direction is arranged on the top face of the supporting table. The milling cutters arranged on the two sides of the objective table work cooperatively to synchronously machine the two faces of the workpiece, the workpiece milling efficiency is improved, the workpiece clamping frequency is reduced, and the machining precision is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

A CNC double-head milling machine Technical Field

[0001] This invention relates to the field of CNC milling machine technology, and in particular to a CNC double-head milling machine. Background Technology

[0002] With the rapid development of the manufacturing industry, the requirements for the efficiency, precision and automation of processing equipment are getting higher and higher. As one of the core equipment of modern machining, CNC milling machines are widely used in the milling of various metal and non-metal materials.

[0003] In the existing technology, most CNC milling machines are single-head designs, which have limited processing efficiency. Especially when it is necessary to mill both ends of the workpiece at the same time, multiple clamping or equipment changes are often required, resulting in long processing cycles and difficulty in guaranteeing accuracy. Summary of the Invention

[0004] This application provides a CNC double-head milling machine that can simultaneously process both sides of a workpiece, thereby improving processing efficiency and reducing the number of workpiece clamping operations.

[0005] This application provides a CNC double-head milling machine, which adopts the following technical solution: A CNC double-head milling machine includes a base, a worktable, and a gantry; the worktable is disposed on the top surface of the base; the gantry is mounted on the top surface of the base, and a pressing assembly is provided on the gantry to press the workpiece onto the worktable; a pair of support platforms are disposed outside the base; the pair of support platforms are symmetrically arranged on two mutually distant sides of the base, and a work plate is disposed on the top surface of the support platforms; a spindle box is disposed on the top surface of the work plate; a milling cutter is mounted on the output end of the spindle box; a moving mechanism is disposed on the top surface of the support platforms; the moving mechanism can drive the work plate to move in three-dimensional directions.

[0006] By adopting the above technical solution, when milling a workpiece, the workpiece is placed on the worktable, the clamping assembly clamps and fixes the workpiece, and the moving mechanism on the support platform drives the milling cutter to move towards the workpiece so that the milling cutter contacts the workpiece. The spindle box drives the milling cutter to rotate. Through the coordinated work of the milling cutters arranged on both sides of the worktable, both sides of the workpiece are processed simultaneously, which improves the efficiency of workpiece milling, reduces the number of workpiece clamping times, and ensures the machining accuracy.

[0007] Preferably, the moving mechanism includes a base plate, a first electromagnetic slide rail, and a second electromagnetic slide rail; the base plate is horizontally mounted on the top surface of the support platform via a set of vertically arranged first electric push rods; the first electromagnetic slide rail is horizontally mounted on the top surface of the base plate, and a first sliding plate is slidably mounted on the top surface of the first electromagnetic slide rail; the second electromagnetic slide rail is horizontally mounted on the top surface of the first sliding plate, the second electromagnetic slide rail is perpendicular to the first electromagnetic slide rail, and a second sliding plate is slidably mounted on the top surface of the second electromagnetic slide rail; the loading plate is disposed on the top surface of the second sliding plate.

[0008] By adopting the above technical solution, the first electric actuator can drive the milling cutter to move vertically, and the arrangement of the first electromagnetic slide rail and the second electromagnetic slide rail can drive the milling cutter to move horizontally. Through the coordinated operation of the first electric actuator, the first electromagnetic slide rail and the second electromagnetic slide rail, the milling cutter can be easily moved in three dimensions.

[0009] Preferably, the pressing assembly includes a hydraulic cylinder; the hydraulic cylinder is vertically mounted on the top surface of the gantry, and a pressing rod extending to the bottom of the gantry is coaxially fixed to the output end of the hydraulic cylinder.

[0010] By adopting the above technical solution, after the workpiece is placed on the platform, the hydraulic cylinder can be activated to drive the pressure rod to move down and press it against the surface of the workpiece, so as to keep the workpiece stable during the processing and ensure the accuracy of the milling process.

[0011] Preferably, a first motor is vertically mounted on the base; a first rotating shaft is coaxially fixed to the output end of the first motor; the top end of the first rotating shaft is fixed to the bottom surface of one end of the gantry frame; a limiting cylinder is vertically fixed to the top surface of the base; a second electric push rod is provided on the top surface of the end of the gantry frame away from the first rotating shaft; the output end of the second electric push rod can be inserted into the limiting cylinder and slide in cooperation with the inner wall of the limiting cylinder.

[0012] By adopting the above technical solution, starting the first motor can drive the gantry to rotate, so as to make room for the loading and unloading of workpieces. When the gantry moves the second electric push rod to the top of the limiting cylinder, the output end of the second electric push rod can move down and extend into the limiting cylinder to limit the gantry, so as to keep the gantry stable and to press the workpiece stably.

[0013] Preferably, a water tank is installed on the bottom surface of the base; a spray pipe is provided on the outer wall of the gantry frame; multiple universal bamboo-joint pipes that can communicate with the spray pipe are provided on the outer wall of the spray pipe; a pump body is installed on the top surface of the gantry frame; an inlet pipe communicating with the water tank is provided at the input end of the pump body, and an outlet pipe communicating with the spray pipe is fixedly connected at the output end of the pump body.

[0014] By adopting the above technical solution, when milling a workpiece, the outlet end of the universal bamboo tube is adjusted to face the workpiece to be processed. During the processing, the pump body is started to draw out the milling fluid contained in the water tank and deliver it to the spray pipe, and spray it out through the universal bamboo tube to cool, lubricate and clean the workpiece processing area, thereby improving processing efficiency, extending tool life, and ensuring the dimensional accuracy and surface quality of the workpiece.

[0015] Preferably, the top surface of the platform is provided with a flow guide groove; the bottom wall of the flow guide groove is provided with a plurality of first openings; a second opening is provided on the base at the position corresponding to the first opening; a filter screen is installed on the inner wall of each first opening; and a plurality of semiconductor cooling chips are provided on the outer wall of the water tank.

[0016] By adopting the above technical solution, the milling fluid sprayed onto the stage will flow along the guide channel. After being filtered by the filter screen, the milling fluid will fall into the water tank through the first port and the second through hole, realizing the recovery of the milling fluid. The semiconductor cooling chip is used to cool the milling fluid in the water tank to ensure the cooling effect of the milling fluid on the workpiece, so as to promote the reuse of the milling fluid.

[0017] Preferably, a second motor is horizontally mounted on the outer wall of the water tank; a second rotating shaft extending into the water tank is coaxially fixed to the output end of the second motor; and a stirring plate is provided on the outer wall of the second rotating shaft.

[0018] By adopting the above technical solution, starting the second motor can drive the second rotating shaft to rotate, causing the stirring plate to agitate the milling fluid in the water tank, so that the semiconductor cooling chip can uniformly cool the milling fluid.

[0019] Preferably, the inner wall of the guide channel is provided with a plurality of blow pipes; the plurality of blow pipes are respectively located on top of a plurality of filter screens, and each blow pipe is provided with a plurality of air jet nozzles inclined toward the top of the filter screen; the base is provided with a blower mechanism that can blow air into the plurality of blow pipes.

[0020] By adopting the above technical solution, during the process of filtering milling fluid through the filter screen, the blower mechanism can blow gas into multiple blow pipes, and the gas is then sprayed out through the jet nozzle to clean the impurities on the top of the filter screen, causing the impurities on the surface of the filter screen to be cleaned out of the guide groove, reducing the possibility of the filter screen being blocked by impurities and ensuring the water permeability of the filter screen.

[0021] Preferably, the blower mechanism includes a tube body; the tube body is disposed on the outer wall of the base, the tube body is coaxial with the second rotating shaft, and a rotating shaft is coaxially rotatably connected to the inner wall of the tube body through a support plate; fan blades are disposed on the outer wall of the rotating shaft; a dustproof net is installed on the inner wall of the inlet end of the tube body, and an air supply pipe connected to multiple blow pipes is disposed on the outer wall of the outlet end of the tube body; a transmission component is disposed on the outer wall of the base, which enables the second rotating shaft to drive the rotating shaft to rotate.

[0022] By adopting the above technical solution, the second rotating shaft will drive the rotating shaft to rotate through the transmission component during the rotation process, causing the fan blades to rotate and continuously blow air into the tube body. The airflow is then transported to multiple blow pipes through the air supply pipe to achieve continuous airflow into multiple blow pipes. The dustproof net is set to filter dust and impurities in the air and reduce the possibility of dust and impurities clogging the jet nozzle.

[0023] Preferably, the transmission assembly includes a speed-increasing gearbox, a first pulley, a second pulley, and a belt; the speed-increasing gearbox is mounted on the outer wall of the base, the input end of the speed-increasing gearbox is coaxially fixed to the second rotating shaft, and the output end of the speed-increasing gearbox is coaxially fixed to the rotating shaft; the first pulley is coaxially fixed to the output end of the speed-increasing gearbox; the second pulley is coaxially fixed to the outer wall of the end of the rotating shaft; and the belt is sleeved on the outside of the first pulley and the second pulley.

[0024] By adopting the above technical solution, with the cooperation of the speed-increasing gearbox, the first pulley, the second pulley and the belt, the second rotating shaft will drive the rotating shaft to rotate at high speed during the rotation process, thereby realizing the transmission of kinetic energy during the rotation of the second rotating shaft.

[0025] In summary, this application has the following beneficial effects: 1. The workpiece is placed on the platform and clamped and fixed by the clamping assembly. The moving mechanism on the support platform on both sides of the base drives the milling cutter to move towards the workpiece, so that the milling cutter contacts the workpiece. The spindle box drives the milling cutter to rotate. Through the cooperation of the milling cutters arranged on both sides of the platform, the two sides of the workpiece are processed simultaneously, improving the milling efficiency, reducing the number of workpiece clamping times, and ensuring processing accuracy; 2. When milling the workpiece, the outlet end of the universal bamboo tube is adjusted to face the workpiece to be processed. During the processing, the pump body is started to draw the milling fluid in the water tank and deliver it to the spray pipe, and spray it out through the universal bamboo tube to cool, lubricate and clean the workpiece processing area, improving processing efficiency, extending tool life, and ensuring the dimensional accuracy and surface quality of the workpiece; 3. Starting the second motor can drive the second rotating shaft to rotate, causing the stirring plate to agitate the milling fluid in the water tank, and causing the semiconductor cooling chip to uniformly cool the milling fluid so that the milling fluid can be reused. Attached Figure Description

[0026] Figure 1 is a structural schematic diagram of a CNC double-head milling machine; Figure 2 is a structural schematic diagram of the cooperation between the first rotating shaft, gantry, and pressure assembly in this application; Figure 3 is a structural schematic diagram of the cooperation between the carrying plate and the moving mechanism in this application; Figure 4 is a structural schematic diagram of the cooperation between the base, water tank, and carrying platform in this application; Figure 5 is a structural schematic diagram of the internal structure of the water tank in this application; Figure 6 is a structural schematic diagram of the cooperation between the air supply pipe and the blower pipe in this application; Figure 7 is a structural schematic diagram of the blower mechanism in this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Base; 2. Platform; 21. Guide channel; 22. Filter screen; 23. Spray pipe; 231. Air nozzle; 3. Gantry frame; 31. First motor; 32. First rotating shaft; 33. Limiting cylinder; 34. Second electric actuator; 35. Spray pipe; 351. Universal bamboo joint pipe; 36. Pump body; 361. Liquid inlet pipe; 362. Liquid outlet pipe; 4. Pressing assembly; 41. Hydraulic cylinder; 42. Pressing rod; 5. Support platform; 51. Carrying plate; 52. Spindle box; 53. Milling cutter; 6. Moving mechanism; 61. Base plate; 62. First electromagnetic slide rail; 621. First sliding plate; 63. Second electromagnetic slide rail; 631. Second sliding plate; 64. First electric push rod; 7. Water tank; 71. Semiconductor cooling chip; 72. Second motor; 73. Second rotating shaft; 74. Stirring plate; 8. Blower mechanism; 81. Pipe body; 82. Rotating shaft; 83. Fan blade; 84. Air duct; 85. Transmission assembly; 851. Speed-increasing gearbox; 852. First pulley; 853. Second pulley; 854. Belt. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] This invention discloses a CNC double-head milling machine, as shown in Figures 1 and 2, including a base 1 and a stage 2; the stage 2 is fixedly connected to the top surface of the base 1, and a workpiece can be placed on the stage 2; a first motor 31 is vertically mounted on the bottom surface of the base 1, and a first rotating shaft 32 extending to the top of the base 1 is coaxially fixedly connected to the output end of the first motor 31; a gantry frame 3 is horizontally fixedly connected to the top of the first rotating shaft 32; a limit cylinder 33 is vertically fixedly connected to the top surface of the base 1 on the side of the stage 2 away from the first rotating shaft 32; the gantry... A second electric push rod 34 is vertically installed on the top surface of the end of the frame 3 away from the first rotating shaft 32. The output end of the second electric push rod 34 can be inserted into the inside of the limiting cylinder 33 and slide in cooperation with the inner wall of the limiting cylinder 33. A pressing assembly 4 that can press the workpiece on the platform 2 is provided on the gantry frame 3. The pressing assembly 4 includes a hydraulic cylinder 41. The hydraulic cylinder 41 is vertically installed on the top surface of the middle part of the gantry frame 3. A pressing rod 42 that extends vertically through the gantry frame 3 to the bottom of the gantry frame 3 is coaxially fixed to the output end of the hydraulic cylinder 41.

[0030] The first motor 31 drives the first rotating shaft 32 to rotate, causing the gantry 3 to rotate and move aside to make room. Then, the workpiece is placed on the platform 2. The first motor 31 drives the gantry 3 to rotate until the second electric push rod 34 is aligned with the limiting cylinder 33. The output end of the second electric push rod 34 moves down and extends into the limiting cylinder 33 to limit the gantry 3. Then, the hydraulic cylinder 41 drives the pressure rod 42 to move down and press it against the surface of the workpiece to keep the workpiece stable, as shown in Figures 1 and 3. The base 1 has two symmetrically arranged support platforms 5 on its two far apart sides. The top surface of the support platform 5 is connected to the carrying plate 51 through the moving mechanism 6. The moving mechanism 6 can drive the carrying plate 51 to move in three dimensions. The top surface of the carrying plate 51 is provided with a spindle box 52. The output end of the spindle box 52 is equipped with a milling cutter 53. The input end of the spindle box 52 is provided with a power element that can drive the milling cutter 53 to rotate.

[0031] During milling, the moving mechanism 6 drives the milling cutter 53 to move toward the workpiece, so that the milling cutter 53 contacts the workpiece. The spindle box 52 drives the milling cutter 53 to rotate. Through the cooperation of the milling cutters 53 arranged on both sides of the platform 2, both sides of the workpiece are machined simultaneously, which improves the milling efficiency of the workpiece, reduces the number of workpiece clamping times, and ensures the machining accuracy.

[0032] As shown in Figures 1 and 3, the moving mechanism 6 includes a base plate 61, a first electromagnetic slide rail 62, and a second electromagnetic slide rail 63. The base plate 61 is horizontally mounted on the top surface of the support platform 5 via a set of vertically arranged first electric push rods 64. The first electromagnetic slide rail 62 is horizontally mounted on the top surface of the base plate 61, and a first sliding plate 621 is slidably mounted on the top surface of the first electromagnetic slide rail 62. The second electromagnetic slide rail 63 is horizontally mounted on the top surface of the first sliding plate 621 and is perpendicular to the first electromagnetic slide rail 62. A second sliding plate 631 is slidably mounted on the top surface of the second electromagnetic slide rail 63. The carrying plate 51 is fixed to the top surface of the second sliding plate 631.

[0033] The first electric actuator 64 enables the vertical lifting and lowering of the milling cutter 53. The first slide plate 621 on the first electromagnetic slide rail 62 and the second slide plate 631 on the second electromagnetic slide rail 63 can cooperate to enable the milling cutter 53 to move horizontally, thereby enabling the milling cutter 53 to move in three dimensions.

[0034] As shown in Figures 1, 2, and 4, a water tank 7 is installed on the bottom surface of the base 1. The top of the water tank 7 is open. A pair of interconnected spray pipes 35 are provided on the outer wall of the gantry frame 3. Each spray pipe 35 has multiple universal bamboo joint pipes 351 connected to it on its outer wall. A pump body 36 is installed on the top surface of the gantry frame 3. The pump body 36 has an inlet pipe 361 connected to the water tank 7 at its input end and an outlet pipe 362 connected to the spray pipes 35 at its output end. A grid-shaped guide channel 21 is provided on the top surface of the platform 2. Multiple first openings are vertically opened on the bottom wall of the guide channel 21. Multiple second openings corresponding to the first openings are vertically opened on the base 1. The first and second openings connect the guide channel 21 and the water tank 7.

[0035] During the machining process, the pump body 36 is started to deliver the milling fluid in the water tank 7 to the spray pipe 35. The universal bamboo joint pipe 351 sprays the milling fluid onto the workpiece to cool, lubricate and rinse the workpiece machining area, extend the tool life, and ensure the dimensional accuracy and surface quality of the workpiece machining. The milling fluid that falls into the guide groove 21 then flows back into the water tank 7 for recycling.

[0036] As shown in Figures 4 and 5, a filter screen 22 is installed on the inner wall of each first port, a plurality of semiconductor cooling chips 71 are provided on the outer wall of the water tank 7, a second motor 72 is horizontally installed on the outer wall of the water tank 7, and a second rotating shaft 73 extending into the water tank 7 is coaxially fixed to the output end of the second motor 72, and a plurality of stirring plates 74 are fixed to the outer wall of the second rotating shaft 73.

[0037] The returned milling fluid will first be filtered through filter screen 22 and then flow into water tank 7. When recovering the milling fluid, the second motor 72 is started to cause the stirring plate 74 to stir the milling fluid and cause the semiconductor cooling chip 71 to cool the milling fluid evenly, so as to ensure the cooling effect of the milling fluid during the recycling process.

[0038] As shown in Figures 4 and 6, the inner wall of the guide channel 21 is provided with multiple blow pipes 23 located on top of multiple filters 22. Each blow pipe 23 is provided with multiple air nozzles 231, which are inclined towards the top of the filter 22. The base 1 is provided with a blower mechanism 8 that can blow air into the multiple blow pipes 23.

[0039] During the process of filtering milling fluid through the filter screen 22, the blower mechanism 8 blows gas into multiple blow pipes 23 and sprays it out through the jet nozzle 231 to clean the impurities on the top of the filter screen 22, causing the impurities to be cleaned out of the guide groove 21 and ensuring the water permeability of the filter screen 22.

[0040] As shown in Figures 4, 6, and 7, the blower mechanism 8 includes a tube body 81, a rotating shaft 82, and a transmission assembly 85. The tube body 81 is horizontally mounted on the outer wall of the base 1 and is coaxial with the second rotating shaft 73. The rotating shaft 82 is coaxially rotatably connected to the inner wall of the tube body 81 via a support plate. Fan blades 83 are mounted on the outer wall of the rotating shaft 82. A dustproof net is mounted on the inner wall of the inlet end of the tube body 81. An air supply pipe 84 is fixedly connected to the outlet end of the tube body 81. The end of the air supply pipe 84 away from the tube body 81 is fixedly connected to multiple blow pipes 23. The transmission assembly 85 is mounted on the outer wall of the base 1 and includes a speed-increasing gear. The gearbox 851, first pulley 852, second pulley 853, and belt 854 are included. The speed-increasing gearbox 851 is mounted on the outer wall of the base 1. The input end of the speed-increasing gearbox 851 is coaxially fixed to the second rotating shaft 73, and the output end of the speed-increasing gearbox 851 is coaxially arranged with the rotating shaft 82. The first pulley 852 is coaxially fixed to the outer wall of the output end of the speed-increasing gearbox 851, and the second pulley 853 is coaxially fixed to the outer wall of the end of the rotating shaft 82 that extends outside the tube body 81. The belt 854 is sleeved on the outside of the first pulley 852 and the second pulley 853, and the belt 854 drives the first pulley 852 and the second pulley 853 to move together.

[0041] With the coordinated operation of the speed-increasing gearbox 851, the first pulley 852, the second pulley 853 and the belt 854, the second rotating shaft 73 will drive the rotating shaft 82 to rotate at high speed during rotation, causing the fan blades 83 to rotate and continuously blow air into the pipe body 81. The airflow is then transported to multiple blow pipes 23 through the air supply pipe 84, so as to achieve continuous air blowing into multiple blow pipes 23.

[0042] Working principle: The first motor 31 is started, driving the first rotating shaft 32 to rotate, causing the gantry 3 to move away from the top of the platform 2 to make room for the workpiece to be placed on the platform 2. The first motor 31 drives the gantry 3 to rotate until the second electric push rod 34 is aligned with the limiting cylinder 33. The output end of the second electric push rod 34 moves down and extends into the limiting cylinder 33 to limit the gantry 3. The hydraulic cylinder 41 drives the pressure rod 42 to move down and press against the surface of the workpiece, making the workpiece stable. During milling, the milling cutter 53 can be easily moved in three dimensions through the cooperation of the first electric push rod 64, the first electromagnetic slide rail 62 and the second electromagnetic slide rail 63, so that the milling cutter 53 can contact the workpiece. Then, the spindle box 52 drives the milling cutter 53 to rotate to mill the workpiece. The cooperation of the milling cutters 53 set on both sides of the platform 2 allows for simultaneous processing of both sides of the workpiece, improving the workpiece processing efficiency and ensuring the workpiece processing accuracy. During the workpiece milling process, the pump body 36 is started to pump water from the water tank 7. The milling fluid is delivered to the spray pipe 35 and sprayed onto the workpiece through the universal bamboo joint pipe 351 to cool, lubricate, and rinse the machined parts of the workpiece, extend the tool life, and ensure the dimensional accuracy and surface quality of the workpiece. The sprayed milling fluid flows into the guide channel 21 and is then filtered by the filter screen 22 before flowing back into the water tank 7 for recycling. During the recycling process, the second motor 72 is activated to agitate the milling fluid with the stirring plate 74 and to uniformly cool the milling fluid with the semiconductor cooling chip 71, enabling the reuse of the milling fluid. During the rotation of the second rotating shaft 73, the rotating shaft 82 is driven by the transmission component 85, causing the fan blades 83 to rotate and continuously blow air into multiple spray pipes 23. The air is sprayed out through the nozzle 231 to clean the impurities on the top of the filter screen 22, removing the impurities from the surface of the filter screen 22 from the guide channel 21, reducing the possibility of the filter screen 22 being clogged by impurities, and ensuring the water permeability of the filter screen 22.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC double-head milling machine, characterized in that: The system includes a base (1), a platform (2), and a gantry (3); the platform (2) is located on the top surface of the base (1); the gantry (3) is installed on the top surface of the base (1), and a pressing assembly (4) is provided on the gantry (3) to press the workpiece onto the platform (2); a pair of support platforms (5) are provided on the outside of the base (1); the pair of support platforms (5) are symmetrically arranged on two opposite sides of the base (1), and a loading plate (51) is provided on the top surface of the support platform (5); a spindle box (52) is provided on the top surface of the loading plate (51); a milling cutter (53) is installed at the output end of the spindle box (52); a moving mechanism (6) is provided on the top surface of the support platform (5); the moving mechanism (6) can drive the loading plate (51) to move in three dimensions.

2. A CNC double-head milling machine according to claim 1, characterized in that: The moving mechanism (6) includes a base plate (61), a first electromagnetic slide rail (62), and a second electromagnetic slide rail (63); the base plate (61) is horizontally mounted on the top surface of the support platform (5) via a set of vertically arranged first electric push rods (64); the first electromagnetic slide rail (62) is horizontally mounted on the top surface of the base plate (61), and a first sliding plate (621) is slidably mounted on the top surface of the first electromagnetic slide rail (62); the second electromagnetic slide rail (63) is horizontally mounted on the top surface of the first sliding plate (621), the second electromagnetic slide rail (63) is perpendicular to the first electromagnetic slide rail (62), and a second sliding plate (631) is slidably mounted on the top surface of the second electromagnetic slide rail (63); the carrying plate (51) is disposed on the top surface of the second sliding plate (631).

3. A CNC double-head milling machine according to claim 1, characterized in that: The pressing assembly (4) includes a hydraulic cylinder (41); the hydraulic cylinder (41) is vertically installed on the top surface of the gantry (3), and the output end of the hydraulic cylinder (41) is coaxially fixed with a pressing rod (42) extending to the bottom of the gantry (3).

4. A CNC double-head milling machine according to claim 1, characterized in that: A first motor (31) is vertically mounted on the base (1); a first rotating shaft (32) is coaxially fixed to the output end of the first motor (31); the top end of the first rotating shaft (32) is fixed to the bottom surface of one end of the gantry frame (3); a limiting cylinder (33) is vertically fixed to the top surface of the base (1); a second electric push rod (34) is provided on the top surface of the end of the gantry frame (3) away from the first rotating shaft (32); the output end of the second electric push rod (34) can be inserted into the inside of the limiting cylinder (33) and slide in cooperation with the inner wall of the limiting cylinder (33).

5. A CNC double-head milling machine according to claim 1, characterized in that: A water tank (7) is installed on the bottom surface of the base (1); a spray pipe (35) is provided on the outer wall of the gantry frame (3); a plurality of universal bamboo joint pipes (351) that can communicate with the spray pipe (35) are provided on the outer wall of the spray pipe (35); a pump body (36) is installed on the top surface of the gantry frame (3); an inlet pipe (361) that communicates with the water tank (7) is provided at the input end of the pump body (36), and an outlet pipe (362) that communicates with the spray pipe (35) is fixedly connected at the output end of the pump body (36).

6. A CNC double-head milling machine according to claim 5, characterized in that: The top surface of the platform (2) is provided with a flow guide groove (21); the bottom wall of the flow guide groove (21) is provided with a plurality of first openings; the base (1) is provided with a second opening at the position corresponding to the first opening; a filter screen (22) is installed on the inner wall of each first opening; a plurality of semiconductor cooling chips (71) are provided on the outer wall of the water tank (7).

7. A CNC double-head milling machine according to claim 6, characterized in that: A second motor (72) is horizontally installed on the outer wall of the water tank (7); a second rotating shaft (73) extending into the water tank (7) is coaxially fixed to the output end of the second motor (72); a stirring plate (74) is provided on the outer wall of the second rotating shaft (73).

8. A CNC double-head milling machine according to claim 7, characterized in that: The inner wall of the guide channel (21) is provided with a plurality of blow pipes (23); the plurality of blow pipes (23) are respectively located on the top of a plurality of filters (22), and each blow pipe (23) is provided with a plurality of air nozzles (231) tilted toward the top of the filter (22); the base (1) is provided with a blower mechanism (8) that can blow air into the plurality of blow pipes (23).

9. A CNC double-head milling machine according to claim 8, characterized in that: The blower mechanism (8) includes a tube body (81); the tube body (81) is disposed on the outer wall of the base (1), the tube body (81) is coaxial with the second rotating shaft (73), and a rotating shaft (82) is coaxially rotatably connected to the inner wall of the tube body (81) through a support plate; a fan blade (83) is disposed on the outer wall of the rotating shaft (82); a dustproof net is installed on the inner wall of the inlet end of the tube body (81), and an air supply pipe (84) connected to multiple blow pipes (23) is disposed on the outer wall of the outlet end of the tube body (81); a transmission component (85) is disposed on the outer wall of the base (1) to enable the second rotating shaft (73) to drive the rotating shaft (82) to rotate.

10. A CNC double-head milling machine according to claim 9, characterized in that: The transmission assembly (85) includes a speed-increasing gearbox (851), a first pulley (852), a second pulley (853), and a belt (854); the speed-increasing gearbox (851) is mounted on the outer wall of the base (1), the input end of the speed-increasing gearbox (851) is coaxially fixed to the second rotating shaft (73), and the output end of the speed-increasing gearbox (851) is coaxially fixed to the rotating shaft (82); the first pulley (852) is coaxially fixed to the output end of the speed-increasing gearbox; the second pulley (853) is coaxially fixed to the outer wall of the end of the rotating shaft (82); the belt (854) is sleeved on the outside of the first pulley (852) and the second pulley (853).