A CNC five-axis cutting milling machine

Abstract

The application relates to the technical field of milling machines, and discloses a CNC five-axis cutting milling machine. The CNC five-axis cutting milling machine comprises a bottom table, a cushion table, a rotary support table, a first sliding table, a second sliding table, a third sliding table, a first motor, a milling cutter, a rotary table, a rotary driving motor, a mounting table and a workpiece table, a scrap magnetization structure is embedded at the bottom end of the workpiece table, air supply pipes are connected to the two sides of the scrap magnetization structure, gas distribution boxes are fixedly connected to the ends of the two air supply pipes away from the scrap magnetization structure, and the two gas distribution boxes are mirror installed on the front side and the rear side of the workpiece table; a second motor for driving the mounting table to swing is installed on one side of the rotary table; the workpiece table is matched with the milling cutter; the CNC five-axis cutting milling machine has the function of automatically collecting and cleaning the scrap, can reduce the accumulation of the scrap on the workpiece mounting seat after each machining, effectively avoids the situation that the scrap needs to be manually cleaned after each machining, improves the manual operation efficiency and reduces the safety risk of manual operation.

Description

Technical Field

[0001] This invention relates to the field of milling machine technology, specifically a CNC five-axis cutting milling machine. Background Technology

[0002] A milling machine is a versatile machine tool used for machining planes (horizontal and vertical), grooves (keyways, T-slots, dovetail grooves, etc.), geared parts (gears, splined shafts, sprockets), helical surfaces (threads, helical grooves), and various curved surfaces. It can also be used for machining rotating surfaces, internal holes, and cutting operations. When a milling machine is working, the workpiece is mounted on the worktable or indexing head. The milling cutter rotates as the primary motion, supplemented by the feed motion of the worktable or milling head, to obtain the desired machined surface. Due to its multi-bladed intermittent cutting, milling machines have high productivity. Simply put, a milling machine is a machine tool that can perform milling, drilling, and boring operations on workpieces.

[0003] Some existing milling machines, such as the five-axis milling machine disclosed in Chinese invention patent CN104668637A, have chips accumulating on the top of the workpiece table after the workpiece is machined. However, there is a lack of corresponding cleaning equipment, which requires pausing the milling machine after each machining operation and manually cleaning the chips. This manual chip cleaning is frequent and time-consuming, which reduces the efficiency of manual operation, increases the safety risks of manual operation, and reduces the efficiency of the milling machine.

[0004] Another Chinese invention patent, CN114515853B, discloses a gantry milling machine, including a base connecting frame, a base side plate, a base drive mechanism, a workpiece seat, a gantry upright plate, an angle rotation mechanism, a lifting support mechanism, a horizontal movement mechanism, a milling cutter support assembly, and a chip removal mechanism. In this invention, a milling cutter is mounted on the milling cutter support assembly. The milling cutter support assembly moves horizontally via the horizontal movement mechanism. The lifting support mechanism drives the milling cutter support assembly to move up and down. The base drive mechanism drives the workpiece seat to move back and forth, thus enabling the milling cutter support assembly to move in three dimensions relative to the workpiece seat. The gantry upright plate can rotate under the drive of the angle rotation mechanism, improving the flexibility of the milling cutter support assembly. When the workpiece seat moves between the two chip removal mechanisms, the chip removal mechanisms generate a strong magnetic force to attract chips towards the chip removal mechanism. When the chips pass through the chip guide box, they fall downwards, facilitating the cleaning of chips from the surface of the workpiece seat. Although this gantry milling machine can achieve the effect of convenient chip removal, this chip removal method can only be realized when the workpiece seat is moved between the two chip removal mechanisms. It cannot achieve chip removal simultaneously during the machining process, and still requires a long time to pause the milling machine for chip removal, which will also reduce the efficiency of the milling machine to a certain extent. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a CNC five-axis milling machine that utilizes intermittent energization of electromagnets to magnetize chips and generate piston motion to pump gas or coolant. The kinetic energy of the gas or coolant, along with the magnetic attraction between chips, enables automatic chip movement. This machine offers advantages such as automatic chip collection and cleaning, simultaneous chip cleaning during machining, reduced chip accumulation on the workpiece mounting base after each machining cycle, effective avoidance of manual chip cleaning after each machining cycle, reduced frequency of manual cleaning, improved manual operation efficiency and reduced safety risks, shorter chip cleaning time, and increased milling machine efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: A CNC five-axis milling machine includes a base table. A pad and a rotary support are fixedly installed on the rear and front sides of the top of the base table, respectively. Multiple horizontally arranged first slide rails are fixedly installed on the top of the pad. A first slide table is slidably installed on the top of the multiple first slide rails. A first drive device for driving the first slide table to slide left and right on the first slide rails is installed between the first slide table and the pad. Multiple front-to-back arranged second slide rails are fixedly installed on the top of the first slide table. A second slide table is slidably installed on the top of the multiple second slide rails. A second drive device for driving the second slide table to slide back and forth on the second slide rails is installed between the second slide table and the first slide table. Multiple vertically arranged third slide rails are fixedly installed on the front side of the second slide table. A third slide table is slidably installed on the front side of the multiple third slide rails. A third drive device for driving the third slide table to slide back and forth on the third slide rails is installed between the third slide table and the second slide table. A third drive unit slides on a slide rail; a first motor is fixedly connected to the top of the third slide table, and the output end of the first motor passes through the bottom of the third slide table and is connected to the milling cutter; the first, second, and third drive units provide three-dimensional movement for the milling cutter, and the first motor directly drives the milling cutter to rotate for milling operations; a rotary table is embedded in the upper end of a rotary support, and a rotary drive motor is set inside the rotary support to drive the rotary table to rotate on the rotary support, and the rotary drive motor drives the rotary table to rotate on a horizontal plane; a mounting platform is rotatably connected inside the rotary table, a workpiece table is embedded in the upper end of the mounting platform, and a chip magnetization structure is embedded in the bottom end of the workpiece table. Air supply pipes are connected to both sides of the chip magnetization structure, and air distribution boxes are fixedly connected to the ends of the two air supply pipes away from the chip magnetization structure. The two air distribution boxes are mirror-mounted on the front and rear sides of the workpiece table; a second motor is installed on one side of the rotary table to drive the mounting platform to swing; the workpiece table cooperates with the milling cutter.

[0009] Preferably, the workpiece table includes a workpiece mounting base, with multiple workpiece clamping strips fixedly mounted on the top of the workpiece mounting base. A workpiece clamp is installed between the multiple workpiece clamping strips, and the workpiece is mounted on the workpiece clamp and located directly above the workpiece mounting base. Multiple chip guide grooves are formed at the top of the workpiece mounting base, and these grooves alternate with the multiple workpiece clamping strips. A chip collection cavity is provided within the workpiece mounting base, where chips generated during milling primarily fall into the chip guide grooves. The chip collection cavity connects to the multiple chip guide grooves. A mounting bracket is fixedly connected to the bottom of the workpiece mounting base. The mounting cylinder has a chip collection chamber connected to the inner cavity of the mounting cylinder. A chip discharge groove connected to the inner cavity of the mounting cylinder is opened on the outer peripheral side of the mounting cylinder. The chip collection chamber is used to collect the chips in the chip guide groove and guide the chips into the mounting cylinder, so that the chips can be discharged from the chip discharge groove, thereby effectively cleaning the chips on the workpiece mounting base. Multiple connecting pipes are installed on the front and rear sides of the workpiece mounting base. Exhaust holes are opened on the front and rear inner walls of the multiple chip guide grooves, and the multiple exhaust holes are connected to the inner cavities of the multiple connecting pipes respectively. The front and rear air distribution boxes are connected to the connecting pipes on the front and rear sides respectively.

[0010] Preferably, the bottom end of the workpiece mounting base contacts the top end of the mounting platform, the mounting cylinder penetrates the mounting platform, and multiple chip removal grooves are provided and distributed in a circular array with the central axis of the mounting cylinder as the center; the bottom wall of the chip removal groove is set as an inclined surface with the inner side higher than the outer side, so as to facilitate the discharge of chips in the mounting cylinder through the chip removal groove.

[0011] Preferably, the debris magnetization structure includes a cylinder body, which is embedded in the bottom end of the mounting cylinder. A top column is fixedly connected to the middle side of the bottom wall of the cylinder body, and a piston is provided above the top column. A spring is fixedly connected between the top column and the piston. A movable core is fixedly connected to the top of the piston, and the movable core passes through the cylinder body. An electromagnet is fixedly sleeved on the outer side of the cylinder body and is embedded in the mounting cylinder. Air supply pipes are provided on both the front and rear sides of the cylinder body, and the ends of the two air supply pipes away from the cylinder body are respectively connected to two air delivery pipes.

[0012] Preferably, the outer cylindrical surface of the cylinder body contracts laterally towards the central axis of the cylinder body to form a frustum-shaped surface, and the frustum-shaped surface fits into the bottom wall of the chip removal groove.

[0013] Preferably, the movable core is disposed inside the mounting cylinder, and the outer peripheral side of the movable core contracts laterally toward the central axis of the movable core to form a frustum-shaped surface.

[0014] Preferably, the outer peripheral side of the piston and the outer peripheral side of the cylinder form a sealing structure; a first check valve is connected to the bottom end of the cylinder, and the outlet of the first check valve points to the inner cavity of the cylinder.

[0015] Preferably, the exhaust port is tilted downward and points towards the chip guide groove, so that the gas blown out from the exhaust port can effectively act on the bottom surface of the chip guide groove and push the debris on the bottom surface of the chip guide groove to move.

[0016] Preferably, a No. 2 check valve is installed on both air supply pipes, and the outlets of both No. 2 check valves point to the end of the air supply pipe away from the cylinder body.

[0017] Preferably, the inlet of the first check valve is connected to the coolant pool.

[0018] Compared with the prior art, the present invention provides a CNC five-axis milling machine, which has the following beneficial effects:

[0019] 1. This milling machine uses a workpiece mounting base and workpiece clamping strips to mount the workpiece fixture. The workpiece is mounted on the workpiece fixture and located directly above the workpiece mounting base. By setting up a chip guide groove, a chip collection cavity, a mounting cylinder, and a chip discharge groove, the chips generated by the milling cutter during workpiece milling fall into the chip guide groove, collect in the chip collection cavity, and are discharged through the inner cavity of the mounting cylinder and the chip discharge groove, thereby achieving the effect of cleaning the chips on the workpiece mounting base.

[0020] 2. This milling machine, by using an electromagnet, magnetizes chips and a moving core using the magnetic field generated by the energized electromagnet. Intermittent energization of the electromagnet leads to intermittent magnetization of the moving core, causing it to move towards the top column during magnetization. A compression spring pushes gas from the cylinder into the air supply pipe, which then passes through the air delivery pipe and air distribution box to the exhaust port. The gas is discharged through the exhaust port and blown into the chip guide groove, providing power for the chips to move towards the chip collection chamber within the groove, thus facilitating chip collection. Simultaneously, the magnetized chips, propelled by the gas, continuously reduce their spacing, and the magnetic attraction between them increases as the spacing decreases. This increases the movement speed of the chips within the chip guide groove, facilitating the collection of chips from both sides of the chip collection chamber. This improves the speed and efficiency of chip collection, thereby enhancing chip cleaning efficiency. It achieves automatic chip cleaning, reducing the frequency of manual chip removal, increasing manual operation efficiency, and lowering the safety risks associated with manual operation.

[0021] 3. This milling machine, through the workpiece clamping bars and chip guide grooves set up one above the other, ensures that the chips generated during the machining process fall directly into the chip guide grooves. Furthermore, the movement of the chips within the chip guide grooves is not affected by the workpiece clamping between the clamping bars, allowing for chip removal during the milling process. This reduces the amount of chips accumulating on the workpiece mounting base after each machining operation, effectively avoiding the need for manual chip removal after each machining session. This further reduces the frequency of manual cleaning, improves operational efficiency, and lowers the safety risks associated with manual operation.

[0022] 4. This milling machine utilizes the intermittent magnetization of the moving core to cause the spring to be reciprocated and compressed, thereby realizing the piston movement within the cylinder and achieving exhaust. The kinetic energy of the gas discharged from the exhaust port and the magnetic attraction between the chips are used to move the chips. The continuous piston movement within the cylinder provides a continuous air source for the movement of chips in the chip guide groove, enabling continuous chip movement and automatic and continuous chip cleaning. This fully utilizes the magnetic field of the electromagnet after it is energized, achieving energy-saving effects.

[0023] 5. This milling machine features a coolant pool located on the rotary table below the cylinder. A second check valve is added to each of the two air supply pipes. The piston movement within the cylinder pumps coolant, which is then discharged through the exhaust port. The kinetic energy of the flowing coolant, combined with the magnetic attraction between the chips, propels the chips forward, allowing for more sustained chip movement and automatic chip collection. This makes chip collection and cleaning more convenient and effective. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram showing the arrangement of the mounting platform and workpiece platform of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the workpiece stage of the present invention;

[0027] Figure 4 This is an intentional design for the venting holes and chip guide grooves of the workpiece stage in this invention.

[0028] Figure 5 This is a cross-sectional view of the workpiece stage of the present invention;

[0029] Figure 6 This is a cross-sectional view of the exhaust port of the present invention;

[0030] Figure 7 This is a schematic diagram of the debris magnetization structure of the present invention;

[0031] Figure 8 This is a cross-sectional schematic diagram of the debris magnetization structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the debris magnetization structure according to another embodiment of the present invention;

[0033] Figure 10 This is a cross-sectional view showing the connection between the workpiece stage and the chip magnetization structure of the present invention.

[0034] The components include: 1. Base platform; 2. Pad platform; 3. Rotary support platform; 4. No. 1 slide table; 5. No. 2 slide table; 6. No. 3 slide table; 7. No. 1 motor; 8. Milling cutter; 9. Rotary table; 10. Mounting platform; 11. Workpiece table; 12. Debris magnetization structure; 13. Air supply pipe; 14. Air distribution box; 15. No. 2 motor; 16. No. 1 slide rail; 17. No. 2 slide rail; 18. No. 3 slide rail; 111. Workpiece. 112. Mounting base; 113. Chip removal groove; 114. Workpiece clamping strip; 115. Chip guide groove; 116. Exhaust hole; 117. Connecting pipe; 118. Chip collection chamber; 121. Cylinder body; 122. Electromagnet; 123. Movable core; 124. Air supply pipe; 125. Top column; 126. Piston; 127. Spring; 128. No. 1 check valve; 129. No. 2 check valve. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-810. A CNC five-axis milling machine includes a base table 1. A pad 2 and a rotary support 3 are fixedly installed on the rear and front sides of the top of the base table 1, respectively. Multiple horizontally arranged first slide rails 16 are fixedly installed on the top of the pad 2. A first slide 4 is slidably installed on the top of the multiple first slide rails 16. A first drive device for driving the first slide 4 to slide left and right on the first slide rails 16 is installed between the first slide 4 and the pad 2. Multiple front-to-back arranged second slide rails are fixedly installed on the top of the first slide 4. A second slide table 5 is slidably mounted on the top of multiple second slide rails 17. A second drive device for driving the second slide table 5 to slide back and forth on the second slide rail 17 is installed between the second slide table 5 and the first slide table 4. Multiple vertically arranged third slide rails 18 are fixedly mounted on the front side of the second slide table 5. A third slide table 6 is slidably mounted on the front side of multiple third slide rails 18. A third drive device for driving the third slide table 6 to slide on the third slide rail 18 is installed between the third slide table 6 and the second slide table 5. A first motor 7 is fixedly connected to the top of the third slide table 6. The output end of the first motor 7 passes through the bottom end of the third slide table 6 and is connected to the milling cutter 8. The first drive device, the second drive device, and the third drive device provide three-dimensional movement for the milling cutter 8. The first motor 7 directly drives the milling cutter 8 to rotate for milling operations. A rotary table 9 is embedded in the upper end of the rotary support 3. A rotary drive motor is provided inside the rotary support 3 to drive the rotary table 9 to rotate on the rotary support 3. The rotary drive motor drives the rotary table 9 to rotate on the horizontal plane. A mounting platform 10 is rotatably connected to the inner side of the rotary table 9. A workpiece table 11 is embedded at the upper end of the mounting platform 10, and a chip magnetization structure 12 is embedded at the bottom end of the workpiece table 11. Air supply pipes 13 are connected to both sides of the chip magnetization structure 12. Air distribution boxes 14 are fixedly connected to the ends of the two air supply pipes 13 away from the chip magnetization structure 12. The two air distribution boxes 14 are mirror images mounted on the front and rear sides of the workpiece table 11. A second motor 15 for driving the mounting platform 10 to swing is installed on one side of the rotary table 9. The workpiece table 11 cooperates with the milling cutter 8.

[0037] When performing milling operations on a workpiece using the above technical solution, the workpiece fixture is first installed on the workpiece table 11, and the workpiece is then installed on the workpiece fixture. Then, the milling cutter 8 is driven to move by the first drive device, the second drive device, and the third drive device, so that the milling cutter 8 can move left and right, forward and backward, and up and down according to the processing requirements. The first motor 7 drives the milling cutter 8 to rotate, and the milling cutter 8 contacts the workpiece to perform milling operations on the workpiece. During the workpiece processing, the workpiece rotates and swings under the drive of the rotary drive motor and the second motor 15, thereby realizing the milling operations on multiple surfaces of the workpiece.

[0038] During the milling process, the generated chips fall onto the workpiece table 11. By intermittently energizing the chip magnetization structure 12, the chips are intermittently magnetized, and the chip magnetization structure 12 is intermittently vented, pushing the magnetized chips towards the middle of the workpiece table 11, so that the chips fall from the middle of the workpiece table 11 onto the rotary table 9, thus cleaning the chips on the workpiece table 11.

[0039] As a further explanation of the above technical solution, the workpiece table 11 includes a workpiece mounting base 111. Multiple workpiece clamping strips 114 are fixedly mounted on the top of the workpiece mounting base 111. Workpiece clamps are installed between the multiple workpiece clamping strips 114, and the workpiece is mounted on the workpiece clamps and located directly above the workpiece mounting base 111. Multiple chip guide grooves 115 are formed at the top of the workpiece mounting base 111, and the multiple chip guide grooves 115 and multiple workpiece clamping strips 114 are alternately arranged. A chip collection cavity 118 is provided inside the workpiece mounting base 111. The top sides of the workpiece clamping strips 114 are inclined downwards. Debris falling on the workpiece clamping strips 114 is magnetized and falls along the inclined surfaces on both sides of the workpiece clamping strips 114 into the chip guide grooves 115, so that the debris generated when the milling cutter 8 mills the workpiece mainly falls into the chip guide grooves 115. The chip collection cavity 118 connects to the multiple chip guide grooves 115. A mounting bracket is fixedly connected to the bottom end of the workpiece mounting base 111. The mounting cylinder 112 has a chip collection chamber 118 connected to its inner cavity. A chip discharge groove 113, connected to the inner cavity of the mounting cylinder 112, is provided on the outer peripheral side of the mounting cylinder 112. The chip collection chamber 118 collects chips from the chip guide groove 115 and guides them into the mounting cylinder 112, allowing the chips to be discharged from the chip discharge groove 113, thus effectively cleaning the chips on the workpiece mounting base 111. Multiple connecting... The pipe 117 has exhaust holes 116 on the front and rear inner walls of multiple chip guide grooves 115, and the multiple exhaust holes 116 are respectively connected to the inner cavity of multiple connecting pipes 117; the front and rear air distribution boxes 14 are respectively connected to the connecting pipes 117 on the front and rear sides; the air outlet of the exhaust hole 116 is inclined downward and points towards the chip guide groove 115, so that the gas blown out from the exhaust hole 116 can effectively act on the bottom surface of the chip guide groove 115 and push the debris on the bottom surface of the chip guide groove 115 to move.

[0040] Furthermore, the bottom end of the workpiece mounting base 111 contacts the top end of the mounting platform 10, the mounting cylinder 112 penetrates the mounting platform 10, and multiple chip removal grooves 113 are provided and arranged in a circular array with the central axis of the mounting cylinder 112 as the center; the bottom wall of the chip removal groove 113 is set as an inclined surface with the inner side higher than the outer side, so as to facilitate the discharge of debris in the mounting cylinder 112 through the chip removal groove 113.

[0041] As a further explanation of the above technical solution, the debris magnetization structure 12 includes a cylinder 121, which is embedded in the bottom end of the mounting cylinder 112. A top post 125 is fixedly connected to the middle side of the bottom wall of the cylinder 121, and a piston 126 is arranged above the top post 125. A spring 127 is fixedly connected between the top post 125 and the piston 126. A movable core 123 is fixedly connected to the top of the piston 126, and the movable core 123 penetrates the cylinder 121. An electromagnet 122 is fixedly sleeved on the outer surface of the cylinder 121 and is embedded in the mounting cylinder 112. Both the top post 125 and the movable core 123 are made of magnetic core material, and the electromagnet 122 is connected to the cylinder 121. After the magnetic field is generated by electricity, the top post 125 and the movable core 123 are magnetized, and a magnetic attraction is formed between the movable core 123 and the top post 125. The movable core 123 moves towards the top post 125 to compress the spring 127. The electromagnet 122 is energized and de-energized repeatedly, so that the movable core 123 and the top post 125 are intermittently magnetized, causing the movable core 123 to move down intermittently. This causes the spring 127 to be compressed and extended repeatedly, so that the movable core 123 moves up and down repeatedly, realizing the reciprocating up and down movement of the piston 126 in the cylinder 121. Air supply pipes 124 are connected to both the front and rear sides of the cylinder 121. The ends of the two air supply pipes 124 away from the cylinder 121 are respectively connected to two air delivery pipes 13.

[0042] Furthermore, the outer cylindrical surface of the cylinder 121 contracts laterally towards the central axis of the cylinder 121 to form a frustum-shaped surface, which mates with the bottom wall of the chip discharge groove 113. The movable core 123 is disposed inside the mounting cylinder 112, and the outer peripheral side of the movable core 123 contracts laterally towards the central axis of the movable core 123 to form a frustum-shaped surface. The frustum-shaped surfaces on the cylinder 121 and the movable core 123 can guide the falling of debris, reduce the accumulation of debris on the cylinder 121 and the movable core 123, and prevent debris from forming a blockage in the mounting cylinder 112.

[0043] By setting the debris magnetization structure 12, the principle of automatic debris cleaning on the workpiece table 11 is as follows: After debris accumulates on the workpiece mounting base 111, the electromagnet 122 is energized and de-energized repeatedly, reciprocatingly magnetizing the movable core 123, the top column 125, and the debris. The magnetized debris located on the workpiece clamping strip 114 falls into the chip guide groove 115 or onto the top two sides of the workpiece mounting base 111 under the action of magnetic attraction. The debris that falls onto the top two sides of the workpiece mounting base 111 moves to both sides of the workpiece mounting base 111 and falls down. During the reciprocating magnetization process, the movable core 123 cooperates with the spring 127 to move up and down reciprocally. The piston 126 moves up and down reciprocally within the cylinder 121. The piston 126 moves down, pushing the gas in the cylinder 121 into the gas supply pipe 124. The gas passes through the gas supply pipe 124, the gas delivery pipe 13, and the gas distribution box 14 into multiple connecting pipes 117, and then is discharged through multiple exhaust holes 116 and blown into the chip guide groove 115, causing the chips to move towards the chip collection chamber 118, where they are collected. The chips then fall into the mounting cylinder 112 and, under the action of the frustum-shaped surface of the cylinder 121 and the inclined bottom wall of the chip discharge groove 113, are discharged through the chip discharge groove 113 and fall onto the rotary table 9.

[0044] Furthermore, the outer peripheral side of piston 126 forms a sealing structure with the outer peripheral side of cylinder 121; a first check valve 128 is connected to the bottom end of cylinder 121, and the outlet of the first check valve 128 points to the inner cavity of cylinder 121; when piston 126 moves upward, air below cylinder 121 can enter cylinder 121 through the first check valve 128, and air in chip guide groove 115 can enter cylinder 121 through exhaust port 116, connecting pipe 117, air distribution box 14, air supply pipe 13 and air delivery pipe 124. The setting of the first check valve 128 can shorten the stroke and time required for air below cylinder 121 to enter cylinder 121, making cylinder 121 easier to be filled by air below it, thereby improving the filling efficiency and filling effect of gas in cylinder 121, thereby improving the exhaust effect when exhaust port 116 exhausts.

[0045] In another embodiment, such as Figure 9As shown, the debris magnetization structure 12 of this invention also includes two second-order check valves 129 respectively installed on two air supply pipes 124. The outlets of both second-order check valves 129 point to the end of the air supply pipe 124 away from the cylinder body 121. In this case, the inlet of the first-order check valve 128 is connected to the coolant pool. In this embodiment, when the piston 126 moves downward in the cylinder body 121, the volume between the piston 126 and the bottom of the cylinder body 121 decreases. When the piston 126 moves upward in the cylinder body 121, the volume between the piston 126 and the bottom of the cylinder body 121 increases. After the first-order check valve 128 is connected to the coolant pool, as the piston 126 moves upward in the cylinder body 121, the volume in the coolant pool increases. The cooling oil is drawn into the cavity below the piston 126 in the cylinder body 121 through the first check valve 128. When the piston 126 moves down, the cooling oil in the cylinder body 121 is pumped into the air supply pipe 124 and then through the second check valve 129, and then through the air distribution box 14 and the air supply pipe 13 into the exhaust port 116. The cooling oil is then sprayed into the chip guide groove 115 through the exhaust port 116. The cooling oil flows from the chip guide groove 115 into the chip collection chamber 118, and then is discharged through the inner cavity of the mounting cylinder 112 and the chip discharge groove 113. During this process, the kinetic energy of the flowing cooling oil and the magnetic attraction between the chips work together to push the chips to move, thereby collecting the chips. The collection and cleaning of the chips are more convenient and effective.

[0046] In this embodiment, the coolant pool connected to the first check valve 128 is set on the rotary table 9 and located below the cylinder 121 to receive the coolant discharged from the chip discharge tank 113 and realize the recycling of the coolant.

[0047] Through the above, the present invention provides a CNC five-axis milling machine that uses the magnetic field generated by the energized electromagnet 122 to magnetize the chips, so that the chips can attract each other under the action of magnetic force, providing assistance for the movement of the chips. At the same time, the reciprocating energization and de-energization of the electromagnet 122 causes the piston 126 to move within the cylinder 121, causing the exhaust port 116 to continuously exhaust gas or continuously discharge coolant. The discharged gas or coolant is used to push the chips to move, so that the chips are discharged from the workpiece mounting seat 111 through the chip guide groove 115, the chip collection cavity 118, the inner cavity of the mounting cylinder 112 and the chip discharge groove 113, thereby achieving chip cleaning.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC five-axis cutting miller comprising a base table (1), characterized in that: The top end rear side and the top end front side of the base table (1) are respectively fixedly provided with a cushion table (2) and a rotary support table (3), a first sliding table (4) is slidingly arranged on the top end of the cushion table (2), a second sliding table (5) is slidingly arranged on the top end of the first sliding table (4), a third sliding table (6) is slidingly arranged on the front side of the second sliding table (5), a first motor (7) is fixedly connected to the top end of the third sliding table (6), the output end of the first motor (7) penetrates through the bottom end of the third sliding table (6) and is drivingly connected with a milling cutter (8), a rotary table (9) is embedded on the upper end of the rotary support table (3), a rotary drive motor is arranged on the inner side of the rotary support table (3) and is used to drive the rotary table (9) to rotate on the rotary support table (3), a mounting table (10) is rotatably connected to the inner side of the rotary table (9), a workpiece table (11) is embedded on the upper end of the mounting table (10), a scrap magnetization structure (12) is embedded on the bottom end of the workpiece table (11), air supply pipes (13) are connected to the two sides of the scrap magnetization structure (12), gas distribution boxes (14) are fixedly connected to the ends of the two air supply pipes (13) away from the scrap magnetization structure (12), and the two gas distribution boxes (14) are mirror image arranged on the front side and the rear side of the workpiece table (11); a second motor (15) is arranged on one side of the rotary table (9) and is used to drive the mounting table (10) to swing; the workpiece table (11) cooperates with the milling cutter (8); The workpiece table (11) comprises a workpiece mounting seat (111), a plurality of workpiece clamp clamping strips (114) are fixedly arranged on the top end of the workpiece mounting seat (111), a plurality of chip guide grooves (115) are formed on the top end of the workpiece mounting seat (111), the plurality of chip guide grooves (115) and the plurality of workpiece clamp clamping strips (114) are alternately arranged, a chip collecting cavity (118) is arranged in the workpiece mounting seat (111), and the chip collecting cavity (118) is communicated with the plurality of chip guide grooves (115); an installation cylinder (112) is fixedly connected to the bottom end of the workpiece mounting seat (111), and the chip collecting cavity (118) is communicated with the inner cavity of the installation cylinder (112); a chip discharge groove (113) which is communicated with the inner cavity of the installation cylinder (112) is formed on the outer side circumferential surface of the installation cylinder (112); a plurality of connecting pipes (117) are arranged on the front and rear sides of the workpiece mounting seat (111), air exhaust holes (116) are formed on the front and rear inner walls of the plurality of chip guide grooves (115), and the plurality of air exhaust holes (116) are respectively communicated with the inner cavities of the plurality of connecting pipes (117); the front and rear gas distribution boxes (14) are respectively connected with the connecting pipes (117) on the front and rear sides; The bottom end of the workpiece mounting seat (111) is in contact with the top end of the mounting table (10), the installation cylinder (112) penetrates through the mounting table (10), the plurality of chip discharge grooves (113) are arranged in a ring array around the central axis of the installation cylinder (112), and the bottom wall of the chip discharge groove (113) is arranged as an inclined surface with an inner high portion and an outer low portion. The debris magnetization structure (12) comprises a cylinder (121) embedded in the bottom end of the mounting cylinder (112), a top column (125) fixedly connected in the bottom wall of the cylinder (121), a piston (126) arranged above the top column (125), a spring (127) fixedly connected between the top column (125) and the piston (126), an active core (123) fixedly connected to the top end of the piston (126), the active core (123) penetrating the cylinder (121), an electromagnet (122) fixedly sleeved on the outer side of the cylinder (121), the electromagnet (122) embedded in the mounting cylinder (112), a gas conveying pipe (124) arranged on the front and rear sides of the cylinder (121), two gas conveying pipes (124) respectively connected with two gas conveying pipes (13) at the ends away from the cylinder (121), the outer cylindrical surface of the cylinder (121) being contracted into a circular truncated cone surface on the side of the central axis of the cylinder (121), the circular truncated cone surface cooperating with the bottom wall of the chip removal groove (113), The active core (123) is arranged in the mounting cylinder (112), and the outer peripheral side of the active core (123) is contracted into a circular truncated cone surface on the side of the central axis of the active core (123), The outer peripheral side of the piston (126) forms a sealing structure with the outer peripheral side of the cylinder (121); a one-way valve (128) is arranged in communication at the bottom end of the cylinder (121), and the outlet of the one-way valve (128) points to the inner cavity of the cylinder (121).

2. A CNC five-axis cutting miller as claimed in claim 1, characterized in that: The gas outlet of the exhaust hole (116) is downwardly inclined and points to the chip guide groove (115).

3. A CNC five-axis cutting miller as claimed in claim 2, characterized in that: A second one-way valve (129) is arranged on each of the two gas conveying pipes (124), and the outlets of the two second one-way valves (129) both point to the ends of the gas conveying pipes (124) away from the cylinder (121).

4. A CNC five-axis cutting miller as claimed in claim 3, characterized in that: The inlet of the one-way valve (128) is connected with a cooling liquid pool.

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