Movable numerical control gantry boring and milling machine

Abstract

The invention provides a movable numerical control gantry boring and milling machine, and relates to the technical field of boring and milling machines, the movable numerical control gantry boring and milling machine comprises a gantry boring and milling machine, a transverse driving frame is arranged on the gantry boring and milling machine, a vertical driving frame is arranged on the front side of the transverse driving frame, a vertical driving machine is arranged in the vertical driving frame, and a main driver and a tool bit are arranged below the vertical driving machine; a double-channel assembly is arranged below the vertical driving frame and comprises an air circulation pipe, an inner oil way pipe and a pipeline cover, the pipeline cover is installed above the air circulation pipe and the inner oil way pipe, and the double-channel assembly below the vertical driving frame is of a double-channel design. Cooling liquid in the gantry boring and milling machine can be conveyed to the tool bit in a multi-angle mode through the double-channel assembly, the high-pressure air pump in the gantry boring and milling machine can convey high-pressure air to the tool bit through the double-channel assembly, boring chippings near the tool bit are blown away while the tool bit is cooled, the tool bit can be cooled, and the boring and milling efficiency is improved. And the tool bit and the surface of a workpiece can be cleaned, and the machining capacity is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of boring and milling machine technology, and more specifically, it relates to a mobile CNC gantry boring and milling machine. Background Technology

[0002] In the field of gantry milling, traditional machining methods and equipment have many problems, which seriously affect machining efficiency, machining quality and tool life.

[0003] Blade cooling and cleaning issues

[0004] Traditional gantry milling machines rely on a single, inefficient cooling method for the cutting head during machining. They typically use only simple coolant pouring, which fails to provide multi-angle, efficient cooling. When the cutting head generates significant heat during rapid machining, this single cooling method is insufficient to quickly reduce the cutting head temperature, leading to overheating, accelerated wear, shortened tool life, and reduced machining accuracy.

[0005] Poor cleaning performance: Traditional equipment lacks effective cleaning methods for boring debris generated near the cutting head. The debris easily accumulates on the cutting head and workpiece surface, affecting not only machining quality but also potentially causing cutting head clogging, further reducing machining efficiency, and even damaging the cutting head. Furthermore, traditional equipment cannot effectively clean the debris while cooling the cutting head, often requiring machine shutdown for manual cleaning, severely impacting machining continuity.

[0006] Airflow control and heat dissipation issues

[0007] Inadequate airflow organization: Traditional gantry milling machines suffer from inefficient airflow path and velocity control in air cooling. Ordinary straight pipes fail to create a high-speed, stable airflow, resulting in low heat exchange efficiency and an inability to quickly remove heat from the cutting head. Furthermore, uneven airflow distribution around the cutting head easily leads to localized cooling imbalances, affecting the overall heat dissipation of the cutting head.

[0008] Lack of impurity protection: Traditional equipment cannot effectively prevent impurities such as dust and coolant droplets from adhering to the cutting edge of the tool. These impurities affect the cutting performance of the tool, increase tool wear, and reduce machining accuracy, and traditional equipment lacks corresponding protective mechanisms to solve this problem.

[0009] Jet head angle adjustment problem

[0010] Fixed-angle air jet head: The air jet head of traditional gantry milling machines has a fixed angle and cannot be adjusted according to the machining position and condition of the cutter head. When the cutter head penetrates deep into the workpiece for machining, the fixed-angle air jet head cannot effectively push away the chips, which can easily interfere with the cutter head, affecting the machining effect and the life of the cutter head.

[0011] Lack of adaptive adjustment: Due to the lack of an adaptive adjustment mechanism, traditional equipment cannot automatically adjust the angle and jet force of the jet head according to the needs of the cutter head at different processing positions, and cannot meet the diverse needs of the cutter head throughout the entire processing process.

[0012] Coolant distribution and utilization issues

[0013] Uneven coolant distribution: Traditional equipment has shortcomings in coolant distribution. The coolant cannot fully cover all parts of the cutting head, especially when the cutting head is deeply embedded in the workpiece for deep machining. The tip and the area near the tip do not receive enough cooling, resulting in local overheating of the cutting head, which affects machining quality and tool life.

[0014] Inadequate cleaning function: Traditional coolant delivery methods mainly focus on cooling and have limited cleaning effect on the cutter head surface. They cannot effectively rinse the cutter head surface and are difficult to remove debris and impurities adhering to the cutter head surface.

[0015] Oil and gas transmission and integration issues

[0016] Complex transmission methods: Traditional gantry milling machines typically use complex pipeline systems for oil and gas transmission. The transmission distance is long and the structure is complex, which not only increases the equipment cost and maintenance difficulty, but also makes it prone to problems such as leakage, affecting the normal operation of the equipment.

[0017] Inconvenient switching and cleaning: When switching between oil and gas, traditional equipment often requires the cutter head to stop for switching operations, and the cutter head may need to be moved and cleaned during the switching process, which seriously affects processing efficiency and continuity. Summary of the Invention

[0018] To address the aforementioned technical problems, this invention provides a mobile CNC gantry milling machine.

[0019] A mobile CNC gantry milling machine includes a gantry milling machine with a transverse drive frame and a vertical drive frame in front of it. A vertical drive motor is housed inside the vertical drive frame. A main drive unit and a cutting head are located below the vertical drive motor. A dual-channel assembly is located below the vertical drive frame. The dual-channel assembly includes an air circulation pipe, an inner oil passage pipe, and a pipe cover. The pipe cover is installed above the air circulation pipe and the inner oil passage pipe. The inner oil passage pipe and the air circulation pipe are sequentially fitted around the main drive unit from the inside out. The inner wall of the inner oil passage pipe near the bottom has a sloping surface. Three sets of rotatable air jets are installed at the bottom of the air circulation pipe. The pipe cover, in conjunction with the air circulation pipe, provides coolant to the cutting head, and the pipe cover, in conjunction with the inner oil passage pipe, provides high-pressure gas to the cutting head.

[0020] Preferably, two fixed frames are fixedly installed below the vertical drive frame, and L-shaped brackets are installed below each of the two fixed frames. An elastic component is installed between the fixed frames and the L-shaped brackets. The two fixed frames are used to change the angle of multiple sets of jet heads. The air circulation pipe is divided into an upper contraction section and a lower expansion section. An air passage pipe is installed at the junction of the upper contraction section and the lower expansion section. A sliding ring is slidably fitted on the outer surface of the air circulation pipe. A rotating frame is fixed to the end of each jet head, and the rotating frame and the jet head are embedded in the bottom of the air circulation pipe. The rotating frame and the inner wall of the air circulation pipe are connected by a torsion spring and a rotating shaft. A flexible air tube is installed on the top of the rotating frame. The top of the flexible air tube is connected to and penetrates the air passage pipe. A bracket fixing plate is fixed to the outer wall of the rotating frame, and a rotating platform is installed inside the bracket fixing plate through a rotating shaft. A connecting rope is installed on the top of the rotating platform, and the top of the connecting rope is fixedly connected to the sliding ring.

[0021] Preferably, the top of the inner oil passage pipe is provided with a concave oil inlet groove, and at least two partitions are installed inside the concave oil inlet groove. At least two drain valves are installed between the bottom of each concave oil inlet groove and the inner wall of the inner oil passage pipe. Each drain valve is inclined at an angle to the inner oil passage pipe. A second oil injection pipe is installed inside each partition. The bottom of each second oil injection pipe is located on a sloping surface, and the angle between the bottom of the second oil injection pipe and the surface of the sloping surface matches. A first oil injection pipe is installed inside each partition located on the side of the second oil injection pipe. The bottom of each first oil injection pipe protrudes outside the inner oil passage pipe, and the bottom of each first oil injection pipe is inclined towards the cutter head.

[0022] Preferably, the pipe cover has an oil storage chamber inside, and a first slot is provided below the oil storage chamber. The pipe cover is sealed to the top of the air circulation pipe through the first slot. An oil inlet pipe is installed on the side wall of the pipe cover, penetrating into the oil storage chamber. An air storage chamber is provided inside the pipe cover located on the outer ring of the oil storage chamber. A second slot is provided below the pipe cover. The pipe cover is sealed to the top of the inner oil passage pipe through the second slot. An air inlet pipe is installed on the side wall of the pipe cover, penetrating into the air storage chamber. The pipe cover is fitted over the main drive.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In this invention, the transverse drive frame of the gantry milling machine can drive the vertical drive frame and the vertical drive motor to move horizontally, and the vertical drive frame can drive the vertical drive motor to move vertically up and down, placing the workpiece to be processed on the machining bed. Then, the main driver at the lower end of the vertical drive motor drives the cutting head to process the workpiece. The cutting head bores the workpiece, and a lot of heat is generated when the cutting head is processing rapidly. The dual-channel assembly below the vertical drive frame is a dual-channel design. The coolant in the gantry milling machine can be delivered to the cutting head at multiple angles through the dual-channel assembly. The high-pressure air pump in the gantry milling machine can deliver high-pressure air to the cutting head through the dual-channel assembly, which cools the cutting head and blows away the boring debris near the cutting head. This not only cools the cutting head but also cleans the surface of the cutting head and the workpiece, greatly improving the processing capacity.

[0025] In this invention, after the air pump of the gantry milling machine delivers air to the dual-channel assembly, the air is transmitted downward through the air circulation pipe. The air velocity changes as it passes through the air circulation pipe. The air first enters the upper contraction section of the air circulation pipe, which can lift the opening and accelerate it, forming a high-speed airflow jet that precisely hits the cutting area of ​​the tool head, directly carrying away heat. Compared with ordinary straight pipes, the high-speed airflow has a higher heat exchange efficiency and can quickly reduce the temperature of the tool head. The air then passes through the lower expansion section in the air circulation pipe, which can reduce the turbulence at the air outlet, making the cooling airflow more stable in covering the periphery of the tool head and avoiding uneven local cooling caused by airflow turbulence. The high-speed airflow can form an "air curtain" on the surface of the tool head, blocking dust, coolant droplets and other impurities in the machining environment from adhering to the cutting edge of the tool head, providing the tool head with three advantages: heat dissipation, chip removal and anti-interference.

[0026] In this invention, initially, multiple air jets face the cutting head, which can quickly cool the surface of the cutting head. When the vertical drive frame drives the vertical drive machine to move downward, the sliding ring is lifted by two L-shaped supports. At this time, the connecting rope on the back of the rotating frame is subjected to an upward force. The connecting rope pulls the support fixing plate outward through the rotating table. The support fixing plate is forced to rotate the rotating frame outward. At this time, the direction of the air jets changes from the inside to the outside. Generally, the cutting head is processing the inside of the workpiece at this time. Multiple sets of air jets spray air outward, which can push away the waste chips near the cutting head, thereby preventing the waste chips from affecting the processing of the cutting head.

[0027] In this invention, an elastic component is provided between each fixed frame and the L-shaped support. The elastic component consists of a spring and a slide bar. The elastic component can adjust the downward movement distance of the vertical drive. At a certain distance, the angle of the jet head changes very slightly. When the elastic component can no longer support the downward position of the vertical drive, the angle of the jet head changes more. At this time, it is more suitable for the processing degree of the cutter head and improves the air jet force received by the cutter head at different processing positions.

[0028] In this invention, when the coolant enters the inner oil passage, it first enters the concave oil inlet groove at the top of the inner oil passage. The coolant flows in the concave oil inlet groove and flows out through the drain valve. The coolant flows from the drain valve to the surface of the cutting head. At the same time, a portion of the coolant flows along the first and second oil injection pipes. When the coolant flows out from the second oil injection pipe, since the angle of the inclined surface at the bottom of the second oil injection pipe and the inner oil passage is the same, the coolant flowing out from the second oil injection pipe will spray towards the end of the cutting head, so that the coolant can fully adhere to the cutting head during processing. Meanwhile, the first oil injection pipe sprays towards the end of the cutting head. When the cutting head is performing deep processing on the workpiece, the coolant sprayed from the first oil injection pipe can flow rapidly at the drilling point of the cutting head, maintaining the cooling capacity during deep processing.

[0029] In this invention, multiple sets of drain valves surround the outer ring of the cutter head, and the drain valves are at an inclined angle. Therefore, when the multiple sets of drain valves spray coolant, they can flow more fully with the surface of the cutter head. In addition, the drain valves have large inlets and narrow outlets, which can flush the surface of the cutter head and achieve a certain cleaning effect.

[0030] In this invention, the air circulation pipe and the internal oil circuit pipe are sealed together with pipe caps. Coolant enters the oil storage tank through the oil inlet pipe, and then enters the internal oil circuit pipe through the oil storage tank. High-pressure air enters the air storage tank through the air inlet pipe, and then enters the air circulation pipe through the air storage tank. The dual-channel design with one cap allows for simultaneous operation of oil and air. Both are integrated with the cutter head, greatly reducing the transmission distance. Furthermore, the operation of both channels does not require the cutter head to be stopped for switching or to be moved for cleaning. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the gantry boring and milling machine of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall structure of the vertical drive motor of the present invention;

[0033] Figure 3 This is a schematic diagram of the overall structure of the cutter head of the present invention;

[0034] Figure 4 This is a schematic diagram of the overall structure of the vertical drive frame of the present invention;

[0035] Figure 5 This is a schematic diagram of the overall structure of the air circulation pipe of the present invention;

[0036] Figure 6 This is a schematic diagram of the overall structure of the jet head of the present invention;

[0037] Figure 7 This is a schematic diagram of the overall structure of the rotating frame of the present invention;

[0038] Figure 8 This is a schematic diagram of the overall structure of the internal oil passage pipe of the present invention;

[0039] Figure 9 This is a schematic diagram of the oil drain valve structure of the present invention;

[0040] Figure 10 This is a schematic diagram of the overall structure of the pipe cover of the present invention.

[0041] In the diagram, the correspondence between component names and attached drawing numbers is as follows: 1. Gantry milling machine; 11. Machining bed; 12. Transverse drive frame; 13. Vertical drive frame; 14. Vertical drive motor; 15. Main drive unit; 16. Tool head; 17. Fixed frame; 18. L-shaped bracket; 19. Elastic component; 2. Dual-channel assembly; 21. Air circulation pipe; 22. Upper retraction section; 23. Lower expansion section; 24. Sliding ring; 25. Rotating frame; 26. 28. Jet head; 29. ​​Support plate; 30. Rotating platform; 31. Connecting rope; 32. Soft air pipe; 33. Air passage pipe; 34. Inner oil passage pipe; 35. Concave oil inlet groove; 36. Oil drain valve; 37. Separator; 38. First oil injection pipe; 39. Second oil injection pipe; 4. Sloping surface; 41. Oil inlet pipe; 42. Oil storage tank; 43. First slot; 44. Air inlet pipe; 45. Air storage tank; 46. Second slot; 47. Pipe cover. Detailed Implementation

[0042] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0043] Please see Figures 1-10This invention provides a mobile CNC gantry milling machine, including a gantry milling machine 1. A transverse drive frame 12 is mounted on the gantry milling machine 1. A vertical drive frame 13 is mounted in front of the transverse drive frame 12. A vertical drive motor 14 is mounted inside the vertical drive frame 13. A main driver 15 and a cutting head 16 are mounted below the vertical drive motor 14. A dual-channel assembly 2 is mounted below the vertical drive frame 13. The dual-channel assembly 2 includes an air circulation pipe 21, an internal oil passage pipe 33, and a pipe... The pipe cover 47 is installed above the air circulation pipe 21 and the inner oil passage pipe 33. The inner oil passage pipe 33 and the air circulation pipe 21 are sequentially fitted around the main drive 15 from the inside to the outside. The inner wall of the inner oil passage pipe 33 near the bottom has a sloping surface 4. Three sets of rotatable jet nozzles 26 are installed at the bottom of the air circulation pipe 21. The pipe cover 47 cooperates with the air circulation pipe 21 to provide coolant to the cutter head 16, and the pipe cover 47 cooperates with the inner oil passage pipe 33 to provide high pressure to the cutter head 16. When the gantry milling machine 1 is working, the horizontal drive frame 12 on the gantry milling machine 1 can drive the vertical drive frame 13 and the vertical drive motor 14 to move horizontally. The vertical drive frame 13 can drive the vertical drive motor 14 to move vertically, placing the workpiece to be processed on the machining bed 11. Then, the main drive 15 at the lower end of the vertical drive motor 14 drives the cutting head 16 to process the workpiece. The cutting head 16 bores the workpiece. A large amount of heat is generated when the cutting head 16 is processing rapidly. The dual-channel assembly 2 below the vertical drive frame 13 is a dual-channel design. The coolant in the gantry milling machine 1 can be delivered to the cutter head 16 at multiple angles through the dual-channel assembly 2. The high-pressure air pump in the gantry milling machine 1 can deliver high-pressure air to the cutter head 16 through the dual-channel assembly 2. While cooling the cutter head 16, it also blows away the boring debris near the cutter head 16. This can both cool the cutter head 16 and clean the surface of the cutter head 16 and the workpiece, greatly improving the processing capacity.

[0044] Two fixed brackets 17 are fixedly installed below the vertical drive frame 13. Each fixed bracket 17 has an L-shaped support 18 installed below it, and an elastic component 19 is installed between the fixed brackets 17 and the L-shaped support 18. The two fixed brackets 17 are used to change the angle of multiple sets of jet heads 26. The airflow pipe 21 is internally divided into an upper constriction section 22 and a lower expansion section 23. Air passage pipes 32 are installed at the junction of the upper constriction section 22 and the lower expansion section 23. A sliding sleeve is provided on the outer surface of the airflow pipe 21. The rotating ring 24 has a rotating frame 25 fixed to the end of each jet head 26. The rotating frame 25 and the jet head 26 are embedded in the bottom of the air circulation pipe 21. The rotating frame 25 and the inner wall of the air circulation pipe 21 are connected by a torsion spring and a rotating shaft. A flexible air tube 31 is installed on the top of the rotating frame 25. The top of the flexible air tube 31 is connected to and passes through the air passage pipe 32. A bracket fixing plate 28 is fixed to the outer wall of the rotating frame 25. A rotating platform 29 is installed inside the bracket fixing plate 28 through a rotating shaft. The top of the rotating platform 29... A connecting rope 3 is installed, and the top of the connecting rope 3 is fixedly connected to the sliding ring 24. After the air pump of the gantry milling machine 1 delivers air to the dual-channel assembly 2, the air is transmitted downward through the air circulation pipe 21. When the air passes through the air circulation pipe 21, the air velocity changes. The air first enters the upper contraction section 22 of the air circulation pipe 21. The upper contraction section 22 can lift the opening and accelerate, forming a high-speed airflow jet, which accurately rushes to the cutting area of ​​the tool head 16 and directly carries away the heat. Compared with ordinary straight pipes, the high-speed airflow has a higher heat exchange efficiency and can quickly reduce the temperature of the tool head. The air then passes through the lower expansion section 23 in the air circulation pipe 21. The lower expansion section 23 can reduce the turbulence at the air outlet, so that the cooling airflow covers the periphery of the tool head more stably, avoiding uneven local cooling caused by airflow turbulence. The high-speed airflow can form a "air curtain" on the surface of the tool head 16, blocking dust, coolant droplets and other impurities in the machining environment from adhering to the cutting edge of the tool head 16, providing the tool head 16 with three advantages: heat dissipation, chip removal and anti-interference.

[0045] When air passes through the air circulation pipe 21, some air enters the flexible air pipe 31 through the air passage pipe 32. The air then enters the jet nozzle 26 through the flexible air pipe 31 and is finally ejected through the jet nozzle 26. In the initial state, multiple jet nozzles 26 face the cutter head 16, which can quickly cool the surface of the cutter head 16. When the vertical drive frame 13 drives the vertical drive machine 14 to move downward, the sliding ring 24 is lifted by the two L-shaped brackets 18. At this time, the connecting rope 3 on the back of the rotating frame 25 is subjected to an upward force. At this time, the connecting rope 3 pulls the bracket fixing plate 28 outward through the rotating table 29. The bracket fixing plate 28 is forced to rotate the rotating frame 25 outward. At this time, the jet nozzles 26 face from the inside to the outside. Generally, the cutter head 16 is processing the inside of the workpiece at this time. Multiple sets of jet nozzles 26 spray air outward, which can push away the waste chips near the cutter head 16, thereby preventing the waste chips from affecting the processing of the cutter head 16.

[0046] An elastic component 19 is provided between each fixed bracket 17 and the L-shaped bracket 18. The elastic component 19 consists of a spring and a slide bar. The elastic component 19 can adjust the downward distance of the vertical drive 14. At a certain distance, the angle of the jet head 26 changes very slightly. When the elastic component 19 can no longer support the downward position of the vertical drive 14, the angle of the jet head 26 changes more. At this time, it is more suitable for the processing degree of the cutter head 16 and improves the air jet force received by the cutter head 16 at different processing positions.

[0047] The top of the inner oil passage pipe 33 is provided with a concave oil inlet groove 34. At least two partitions 37 are installed inside the concave oil inlet groove 34, and at least two drain valves 36 are installed between the bottom of each concave oil inlet groove 34 and the inner wall of the inner oil passage pipe 33. Each drain valve 36 is inclined to the inner oil passage pipe 33. A second injection pipe 39 is installed inside each partition 37. The bottom of each second injection pipe 39 is located on a sloping surface 4, and the angle between the bottom of the second injection pipe 39 and the surface of the sloping surface 4 matches. A first injection pipe 38 is installed inside each partition 37 located on the side of the second injection pipe 39, and the bottom of each first injection pipe 38 protrudes outside the inner oil passage pipe 33. The bottom of each first injection pipe 38 is inclined towards the cutter head 16. When coolant enters the inner oil passage pipe 33, the coolant rate... The coolant first enters the concave oil inlet groove 34 at the top of the inner oil pipe 33. The coolant flows in the concave oil inlet groove 34 and flows out through the drain valve 36. The coolant flows from the drain valve 36 to the surface of the cutter head 16. At the same time, a portion of the coolant flows along the first oil injection pipe 38 and the second oil injection pipe 39. When the coolant flows out from the second oil injection pipe 39, since the angle of the inclined slope 4 at the bottom of the second oil injection pipe 39 and the inner oil pipe 33 is the same, the coolant flowing out from the second oil injection pipe 39 will spray towards the end of the cutter head 16, so that the coolant can fully adhere to the cutter head 16 during processing. Meanwhile, the first oil injection pipe 38 at the other end sprays towards the end of the cutter head 16. When the cutter head 16 is performing deep processing on the workpiece, the coolant sprayed from the first oil injection pipe 38 can flow rapidly at the drilling point of the cutter head 16, maintaining the cooling capacity during deep processing.

[0048] Multiple sets of drain valves 36 surround the outer ring of the cutter head 16, and the drain valves 36 are at an inclined angle. Therefore, when the multiple sets of drain valves 36 spray coolant, they can flow more fully with the surface of the cutter head 16. In addition, the drain valves 36 have large inlets and narrow outlets, which can flush the surface of the cutter head 16 and achieve a certain cleaning effect.

[0049] The pipe cover 47 has an internal oil storage tank 42, and a first slot 43 is provided below the oil storage tank 42. The pipe cover 47 is sealed to the top of the air circulation pipe 21 through the first slot 43. An oil inlet pipe 41 is installed on the side wall of the pipe cover 47, penetrating into the oil storage tank 42. An air storage tank 45 is provided inside the pipe cover 47 located on the outer ring of the oil storage tank 42. A second slot 46 is provided below the pipe cover 47. The pipe cover 47 is sealed to the top of the inner oil passage pipe 33 through the second slot 46. An air inlet pipe 44 is installed on the side wall of the pipe cover 47, penetrating into the air storage tank 45. The air circulation pipe 21 and the inner oil circuit pipe 33 are sealed and connected by a pipe cover 47, which is installed outside the main drive 15. The coolant enters the oil storage tank 42 through the oil inlet pipe 41, and then enters the inner oil circuit pipe 33 through the oil storage tank 42. The high-pressure air enters the air storage tank 45 through the air inlet pipe 44, and then enters the air circulation pipe 21 through the air storage tank 45. The dual-channel design with one cover can realize the simultaneous operation of oil and air. Both are integrated with the cutter head 16, which greatly reduces the transmission distance. In addition, the cutter head 16 does not need to be stopped for switching or cleaning during the operation of the two channels.

[0050] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A mobile CNC gantry boring and milling machine, comprising a gantry boring and milling machine (1), wherein a transverse drive frame (12) is provided on the gantry boring and milling machine (1), a vertical drive frame (13) is provided on the front side of the transverse drive frame (12), a vertical drive motor (14) is provided inside the vertical drive frame (13), and a main drive (15) and a cutting head (16) are provided below the vertical drive motor (14), characterized in that: A dual-channel assembly (2) is provided below the vertical drive frame (13). The dual-channel assembly (2) includes an air circulation pipe (21), an inner oil pipe (33), and a pipe cover (47). The pipe cover (47) is installed above the air circulation pipe (21) and the inner oil pipe (33). The inner oil pipe (33) and the air circulation pipe (21) are sequentially sleeved on the outside of the main drive (15) from the inside to the outside. The inner wall of the inner oil pipe (33) near the bottom has a sloping surface (4). Three sets of rotatable jet heads (26) are installed at the bottom of the air circulation pipe (21). The pipe cover (47) cooperates with the air circulation pipe (21) to provide coolant to the cutter head (16). The pipe cover (47) cooperates with the inner oil pipe (33) to provide high-pressure gas to the cutter head (16).

2. The mobile CNC gantry boring and milling machine as described in claim 1, characterized in that, Two fixed brackets (17) are fixedly installed below the vertical drive frame (13). An L-shaped bracket (18) is installed below each of the two fixed brackets (17), and an elastic component (19) is installed between the fixed brackets (17) and the L-shaped brackets (18). The two fixed brackets (17) are used to change the angle of multiple sets of jet heads (26).

3. The mobile CNC gantry boring and milling machine as described in claim 1, characterized in that, The air circulation pipe (21) is divided into an upper contraction section (22) and a lower expansion section (23), and an air passage pipe (32) is installed at the junction of the upper contraction section (22) and the lower expansion section (23). A sliding ring (24) is slidably sleeved on the outer surface of the air circulation pipe (21).

4. The mobile CNC gantry boring and milling machine as described in claim 3, characterized in that, Each jet head (26) has a rotating frame (25) fixed at its end, and the rotating frame (25) and the jet head (26) are embedded in the bottom of the air circulation pipe (21). The rotating frame (25) and the inner wall of the air circulation pipe (21) are connected by a torsion spring and a rotating shaft.

5. A mobile CNC gantry boring and milling machine as described in claim 4, characterized in that, A flexible air tube (31) is installed on the top of the rotating frame (25). The top of the flexible air tube (31) is connected to the air passage tube (32) and they are in communication. A bracket fixing plate (28) is fixed on the outer wall of the rotating frame (25). A rotating platform (29) is installed inside the bracket fixing plate (28) through a rotating shaft. A connecting rope (3) is installed on the top of the rotating platform (29). The top of the connecting rope (3) is fixedly connected to the sliding ring (24).

6. The mobile CNC gantry boring and milling machine as described in claim 1, characterized in that, The top of the inner oil pipe (33) is provided with a concave oil inlet groove (34), and at least two partitions (37) are installed inside the concave oil inlet groove (34). At least two drain valves (36) are installed between the bottom of each concave oil inlet groove (34) and the inner wall of the inner oil pipe (33).

7. A mobile CNC gantry boring and milling machine as described in claim 6, characterized in that, Each drain valve (36) is inclined at an angle to the inner oil pipe (33), and a second oil injection pipe (39) is installed inside each partition (37). The bottom of each second oil injection pipe (39) is located on the inclined slope (4), and the bottom of the second oil injection pipe (39) matches the angle of the inclined slope (4).

8. A mobile CNC gantry boring and milling machine as described in claim 7, characterized in that, Each partition (37) located on the side of the second fuel injection line (39) is equipped with a first fuel injection line (38), and the bottom of each first fuel injection line (38) protrudes outside the inner fuel line (33), and the bottom of each first fuel injection line (38) is inclined towards the cutter head (16).

9. A mobile CNC gantry boring and milling machine as described in claim 1, characterized in that, The pipe cover (47) has an oil storage tank (42) inside, and a first slot (43) is provided below the oil storage tank (42). The pipe cover (47) is sealed to the top of the air circulation pipe (21) through the first slot (43), and an oil inlet pipe (41) that penetrates the inside of the oil storage tank (42) is installed on the side wall of the pipe cover (47).

10. A mobile CNC gantry boring and milling machine as described in claim 9, characterized in that, An air storage chamber (45) is provided inside the pipe cover (47) located on the outer ring of the oil storage tank (42), and a second slot (46) is provided below the pipe cover (47). The pipe cover (47) is sealed to the top of the inner oil pipe (33) through the second slot (46), and an air inlet pipe (44) is installed on the side wall of the pipe cover (47) that penetrates into the air storage chamber (45). The pipe cover (47) is fitted outside the main drive (15).

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