A CNC turning, milling and grinding composite machining machine tool

Abstract

The present invention relates to the field of machine tool technology, and in particular to a CNC lathe-milling and grinding composite machining machine tool, comprising a machine tool body, a grinding module is also installed on the turret of the machine tool body, and the grinding module comprises a cover plate, and a grinder is slidably installed on the lower surface of the cover plate along the circumferential direction; two baffles are fixed on the upper surface of the cover plate, and a driving cylinder is rotatably installed between the two baffles, and a transmission belt is arranged on the driving cylinder, and the two ends of the transmission belt are fixedly connected to the adjacent ends of the grinder; an air inlet is opened on the lower surface of the driving cylinder, and an exhaust pipe connected to the inside of the driving cylinder is coaxially fixed at one end of the driving cylinder; a one-way air push plate is fixed on the inner surface of the transmission belt on both sides of the driving cylinder. The present invention is provided with a cover plate that can cover the grinding surface of the workpiece, and cooperates with the transmission belt, baffles, etc. to form an air suction chamber above the cover plate, and the one-way air push plate on the transmission belt is used to automatically suck the dust-containing gas under the cover plate into the air suction chamber, and then send it to the gas treatment device for treatment.

Description

Technical Field

[0001] The invention relates to the technical field of machine tools, and in particular to a CNC turning, milling and grinding compound processing machine tool. Background Art

[0002] The existing CNC turning, milling and grinding composite machining machine tools are usually equipped with a turret on the machine body. The turret is equipped with multiple tools for turning and milling, as well as a grinding module for grinding. When processing a columnar workpiece, the fixture on the spindle on the machine body clamps the columnar workpiece, and then the turret moves to the columnar workpiece. By rotating, different tools are aligned with the surface of the columnar workpiece to cooperate with the spindle to turn and mill the workpiece. After the processing is completed, the grinding module on the turret is also required to grind the surface of the columnar workpiece. The existing grinding module mainly uses sandpaper or grinding wheels to grind the workpiece surface. During the grinding process, since the surface of the columnar workpiece is a curved surface, it is difficult for the grinding module to completely cover the entire columnar workpiece, leaving the grinding environment in an open state, which is prone to generate a lot of dust. Summary of the invention

[0003] The purpose of the present invention is to solve the disadvantage of serious dust pollution in the grinding process in the prior art, and to propose a CNC turning, milling and grinding compound processing machine tool.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A CNC lathe-milling and grinding composite machining machine tool is designed, comprising a machine tool body, a turret of the machine tool body is also equipped with a grinding module, the grinding module comprises a cover plate, the cover plate is in an arc shape, and a grinder is slidably mounted on the lower surface of the cover plate along the circumferential direction;

[0006] Two baffles are fixed correspondingly on the upper surface of the cover plate along its length direction, a driving cylinder is rotatably installed between the two baffles, the driving cylinder is connected to a motor for transmission, a driving belt is arranged on the driving cylinder, a guide path is respectively penetrated on both sides of the lower part of the cover plate, and the two ends of the driving belt are fixedly connected to the adjacent ends of the grinder after passing through the corresponding guide paths respectively, and the side edges of the driving belt are in contact with the corresponding baffles, so that an air suction chamber is formed between the driving belt, the two baffles and the cover plate, and a plurality of air suction ports are arranged on the upper surface of the cover plate in the air suction chamber; an air inlet is arranged on the lower surface of the driving cylinder, and an exhaust pipe connected to the interior of the driving cylinder is coaxially fixed at one end of the driving cylinder, and the exhaust pipe is used to connect a gas treatment device; a one-way air pushing plate is fixed on the inner surface of the driving belt on both sides of the driving cylinder, so that the gas in the air suction chamber can be pushed toward the air inlet when the driving belt moves.

[0007] Preferably, the grinder comprises a plurality of transverse axes, and the lower surface of the cover plate is provided with a plurality of transverse axes along the circumferential direction. A grinding body can be detachably installed on each transverse axis away from the cover plate. The transverse axes are fixedly connected and can be slidably installed on the cover plate along the circumferential direction.

[0008] Preferably, a liquid storage cavity is opened in the horizontal axis, and the liquid storage cavity is used to store cooling water. A liquid inlet pipe is arranged at one end of the horizontal axis, and the liquid inlet pipe is used to connect a water replenishing device. An air jet hole is opened at the other end of the horizontal axis, and a sealing plate fitted therewith is arranged outside the other end of the horizontal axis, and the sealing plate is used to shield the air jet hole on the horizontal axis. A plurality of air guide holes corresponding to the air jet holes are also penetrated on the sealing plate, so that the air jet holes in motion can intermittently dock with the air guide holes; the air guide holes are connected to each other through a manifold, and nozzles are penetrated on adjacent baffles, and the nozzles are connected to the manifold.

[0009] Preferably, the upper surface of the nozzle is also provided with a water pipe communicating with the interior thereof, and the water pipe is used to connect to a water supply device; the water pipe is inclined toward the side away from the baffle.

[0010] Preferably, inner walls on both sides of the lower part of the cover plate in the suction chamber are respectively provided with liquid guide channels along the length direction thereof, and a liquid inlet channel is penetrated and provided on the inner wall of the liquid guide channel in a direction toward one side of the suction chamber.

[0011] Preferably, a plurality of porous ceramic balls are placed in the liquid storage cavity.

[0012] Preferably, a flexible barrier net is provided in the air suction chamber below the two one-way air thrust plates, and the air outlet end of the nozzle is placed below the flexible barrier net, and the two ends of the flexible barrier net are respectively fixedly connected to adjacent transmission belts.

[0013] The invention provides a CNC turning, milling and grinding composite machining machine tool, which has the following beneficial effects:

[0014] By providing a cover plate that can cover the grinding surface of the workpiece, and cooperating with a transmission belt, a baffle, etc. to form an air suction chamber above the cover plate, the one-way air push plate on the transmission belt can be used to make the gas in the air suction chamber flow during the grinding process, so that the gas containing a large amount of dust under the cover plate is sucked into the air suction chamber and automatically discharged to the gas treatment device for treatment, thereby greatly reducing the dust pollution during the grinding process;

[0015] By arranging a liquid storage chamber on the horizontal axis of each grinder and connecting the liquid storage chamber with the air suction chamber, the heat generated by the grinder during the grinding process can be used to liquefy the cooling water in the liquid storage chamber to form high-pressure steam, which is then sprayed into the air suction chamber to pre-treat the dust and reduce the burden on subsequent gas treatment devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a CNC turning, milling and grinding composite machining machine tool proposed by the present invention;

[0017] Figure 2 Schematic diagram of the grinding module structure of a CNC lathe-milling and grinding composite machining machine tool proposed by the present invention Figure 1 ;

[0018] Figure 3 Schematic diagram of the grinding module structure of a CNC lathe-milling and grinding composite machining machine tool proposed by the present invention Figure 2 ;

[0019] Figure 4 A schematic diagram of the internal structure of a grinding module of a CNC lathe-milling and grinding composite machining machine tool proposed by the present invention;

[0020] Figure 5 A schematic diagram of the position of a transmission belt and a grinder of a CNC turning, milling and grinding composite machining machine tool proposed by the present invention;

[0021] Figure 6 A schematic diagram of a combination of a manifold and a plugging plate of a CNC turning, milling and grinding composite machining machine tool proposed by the present invention;

[0022] Figure 7 A schematic diagram of the separation of a manifold and a plugging plate of a CNC turning, milling and grinding composite machining machine tool proposed by the present invention;

[0023] Figure 8 A schematic diagram of the positions of the air guide holes and the air injection holes of a CNC turning, milling and grinding composite machining machine tool proposed by the present invention;

[0024] Fig. 9 A schematic diagram of the cover plate structure of a CNC lathe, milling and grinding composite machining machine tool proposed by the present invention Figure 1 ;

[0025] Fig.10 A schematic diagram of the cover plate structure of a CNC lathe, milling and grinding composite machining machine tool proposed by the present invention Figure 2 ;

[0026] Fig.11 The present invention provides a schematic diagram of the one-way air push plate structure of a CNC turning, milling and grinding composite machining machine tool.

[0027] In the figure: 1. cover plate; 2. horizontal axis; 3. grinding body; 4. baffle; 5. driving cylinder; 6. transmission belt; 7. guide channel; 8. one-way air push plate; 81. plate body; 82. air vent; 83. cover plate; 84. rotating shaft; 9. air inlet; 10. exhaust pipe; 11. flexible barrier net; 12. air intake; 13. liquid storage chamber; 14. jet hole; 15. liquid inlet pipe; 16. sealing plate; 17. air guide hole; 18. conduit; 19. nozzle; 20. water pipe; 21. liquid inlet channel; 22. liquid guide channel; 23. slideway; 24. slide block; 25. motor; 26. machine tool body; 27. water replenishment device. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1: Reference Figure 1-4 A CNC lathe, milling and grinding composite machining machine tool comprises a machine tool body 26, a grinding module is also installed on the turret of the machine tool body 26, and the grinding module comprises a cover plate 1, the cover plate 1 is in an arc shape, and a grinder is installed on the lower surface of the cover plate 1 along the circumferential sliding direction;

[0030] Two baffles 4 are fixed correspondingly on the upper surface of the cover plate 1 along its length direction, and a driving cylinder 5 is rotatably installed between the two baffles 4. The driving cylinder 5 is arranged parallel to the central axis of the cover plate 1, and the driving cylinder 5 is connected to the motor 25 for transmission. A transmission belt 6 is arranged on the driving cylinder 5, and a guide path 7 is respectively opened on both sides of the lower part of the cover plate 1. After the two ends of the transmission belt 6 pass through the corresponding guide paths 7, they are fixedly connected to the adjacent grinder ends, and the side of the transmission belt 6 contacts the corresponding baffle 4, so that an air suction chamber is formed between the transmission belt 6, the two baffles 4 and the cover plate 1, and a plurality of air suction ports 12 are opened on the upper surface of the cover plate 1 in the air suction chamber; the air suction ports 12 are arranged as a whole inclined toward the middle of the cover plate 1, so that the droplets flowing on the outer surface of the cover plate 1 will not enter the lower surface of the cover plate 1 through the air suction ports 12. An air inlet 9 is provided on the lower surface of the driving cylinder 5, and an exhaust pipe 10 connected to the inside of the driving cylinder 5 is coaxially fixed at one end of the driving cylinder 5, and the exhaust pipe 10 is used to connect a gas treatment device; the gas treatment device can be a miniaturized detachable filter, which is installed at the end of the exhaust pipe 10, which can greatly reduce the volume of the entire grinding module. A one-way air push plate 8 is fixed on the inner surface of the transmission belt 6 on both sides of the driving cylinder 5, so that the gas in the suction chamber can be pushed to the air inlet 9 when the transmission belt 6 moves. The one-way air push plate 8 includes a plate body 81, and a vent 82 is provided through the plate body 81. A cover plate 83 corresponding to the vent 82 is rotatably installed on the upper surface of the plate body 81 through a rotating shaft 84. When the plate body 81 moves downward, the airflow will push the cover plate 83 upward, so that the cover plate 83 is turned over to expose the vent 82. When the plate body 81 moves upward, the airflow resists the cover plate 83, so that the cover plate 83 blocks the vent 82.

[0031] The grinder includes a plurality of transverse axes 2, and a plurality of transverse axes 2 are circumferentially arranged on the lower surface of the cover plate 1. A grinding body 3 can be detachably installed on the side of each transverse axis 2 away from the cover plate 1. The transverse axes 2 are fixedly connected, and the transverse axes 2 can be slidably installed on the cover plate 1 along the circumferential direction. A plurality of slide grooves 23 are provided on the lower surface of the cover plate 1. The slide grooves 23 are arc-shaped and are coaxially arranged with the cover plate 1. A plurality of sliders 24 can be slidably installed in the slide grooves 23, and the sliders 24 are fixedly connected to any transverse axis 2.

[0032] In Example 1, the dust in the gas is simply treated by the gas treatment device, which places a heavy burden on the gas treatment device. Figure 4-11As another preferred embodiment of the present invention, the difference from embodiment 1 is that a liquid storage chamber 13 is provided in the horizontal axis 2, and the liquid storage chamber 13 is used to store cooling water. The volume of cooling water is less than one-third of the volume of the liquid storage chamber 13, and the height does not exceed the jet hole 14, so that there is sufficient space in the liquid storage chamber 13 to store steam. A liquid inlet pipe 15 is provided at one end of the horizontal axis 2, and the liquid inlet pipe 15 is used to connect the water replenishment device 27. The other end of the horizontal axis 2 is provided with a jet hole 14, and a sealing plate 16 is provided outside the other end of the horizontal axis 2 to fit therewith. The sealing plate 16 is used to shield the jet hole 14 on the horizontal axis 2. The sealing plate 16 is also penetrated with a plurality of air guide holes 17 corresponding to the jet hole 14, so that the jet hole 14 in motion can intermittently dock with the air guide hole 17; the air guide holes 17 are connected to each other through the manifold 18, and the adjacent baffles 4 are penetrated with nozzles 19, and the nozzles 19 are connected to the manifold 18. The cooling water in the horizontal axis 2 can also reduce the temperature of the grinding body 3, thereby preventing the grinding body 3 from being overheated and extending its service life.

[0033] The upper surface of the nozzle 19 is also provided with a water pipe 20 connected to the inside thereof, and the water pipe 20 is used to connect the water supply device; the water pipe 20 is inclined toward the side away from the baffle 4. When the nozzle 19 sprays a small amount of small droplets in the high-pressure steam into the suction chamber, the dust removal effect may be unsatisfactory, so the water pipe 20 is provided. When the water supply device injects a small amount of low-speed water flow into the nozzle 19, the high-pressure steam sprayed from the nozzle 19 will tear the water flow into many small droplets, thereby compensating for the lack of droplets in the high-pressure steam.

[0034] The inner walls on both sides of the lower part of the cover plate 1 in the suction chamber are respectively provided with liquid guide channels 22 along the length direction thereof, and a liquid inlet channel 21 is provided through the inner wall of the liquid guide channel 22 toward one side of the suction chamber. When the liquid droplets dripping on the surface of the cover plate 1 slide toward the two sides of the cover plate 1 under the action of gravity, in order to prevent the liquid droplets from dripping on the surface of the workpiece and contaminating the workpiece, the liquid guide channel 22 and the liquid inlet channel 21 are provided. When the liquid droplets slide down to the liquid inlet channel 21, they will flow into the liquid inlet channel 21 and then be discharged toward the two sides of the cover plate 1 through the liquid guide channel 22. The liquid guide channel 22 can also be connected to a separate sewage treatment device for collecting sewage.

[0035] A plurality of porous ceramic balls are placed in the liquid storage chamber 13. During the movement of the horizontal axis 2, the porous ceramic balls will continuously collide and squeeze with the liquid in the liquid storage chamber 13. With the help of their porous surfaces, more bubbles can be stimulated in the liquid in the liquid storage chamber 13. After the bubbles burst, more water vapor will be generated in the liquid storage chamber 13, so that the high-pressure steam ejected from the liquid storage chamber 13 can be rich in small droplets of water vapor.

[0036] A flexible barrier net 11 is arranged in the air suction chamber below the two one-way air pushing plates 8, and the air outlet end of the nozzle 19 is placed below the flexible barrier net 11, and the two ends of the flexible barrier net 11 are fixedly connected to the adjacent transmission belts 6 respectively. The mesh diameter of the flexible barrier net 11 is small, and the flexible barrier net 11 is made of highly elastic nylon material. The flexible barrier net 11 is arranged because the high-pressure steam ejected from the nozzle 19 contains a large amount of floating liquid with a small mass. After these floating liquids are combined with dust, they are still in a floating state. When they pass through the flexible barrier net 11, the flexible barrier net 11 will intercept them and wait for them to further condense into large droplets on the flexible barrier net 11. At the same time, the flexible barrier net 11 will continuously pull the flexible barrier net 11 back and forth because the transmission belts 6 on both sides move in different directions, so that the flexible barrier net 11 undergoes reciprocating elastic deformation, thereby shaking off the large droplets containing dust condensed thereon, which can further improve the dust removal effect.

[0037] The overall workflow of the present invention is as follows:

[0038] When it is necessary to grind the surface of the columnar workpiece on the spindle of the machine tool body 26, the turret is controlled to align the grinding module above the workpiece, and the cover plate 1 of the grinding module is covered on the surface of the workpiece. Then the operator starts the motor 25, and the motor 25 drives the driving cylinder 5 to rotate back and forth, and the driving cylinder 5 drives the transmission belt 6 thereon to move back and forth. The transmission belt 6 pulls the grinder under the cover plate 1 back and forth to slide back and forth in the circumferential direction, so that the grinder can grind the surface of the workpiece cleanly;

[0039] During this process, the transmission belt 6 on one side of the suction chamber drives a one-way air pushing plate 8 to move downward. At this time, the one-way air pushing plate 8 is in an open state and will not bring the gas in the suction chamber to the lower side. The transmission belt 6 on the other side drives the one-way air pushing plate 8 to move upward. At this time, the one-way air pushing plate 8 is in a closed state, which will bring the gas in the suction chamber upward, so that the gas in the suction chamber is pushed toward the air inlet 9 of the driving cylinder 5, so that the gas in the suction chamber is in a flowing state. With the help of the pressure difference generated by the gas flow, the dust-containing gas generated during the grinding process below the cover plate 1 will be sucked into the suction chamber through the suction port 12;

[0040] When the grinding body 3 on the horizontal axis 2 rubs against the surface of the workpiece, its temperature rises and the heat is transferred to the cooling water in the liquid storage chamber 13 in the horizontal axis 2, so that the cooling water heats up. The temperature rise will cause more steam to be generated in the liquid storage chamber 13, so that the liquid storage chamber 13 is in a high pressure state. When the horizontal axis 2 is reciprocating, every time the jet hole 14 at one end of the horizontal axis 2 is aligned with the air guide hole 17 on the blocking plate 16, the high-pressure steam in the liquid storage chamber 13 will enter the air guide hole 17, and enter the manifold 18 through the air guide hole 17, and then enter the nozzle 19 after being collected by the manifold 18, and finally be sprayed into the suction chamber from the nozzle 19. The water vapor in the high-pressure steam will combine with the dust in the suction chamber, so that most of the dust is captured by the water droplets in the water vapor and falls, and drips on the upper surface of the cover plate 1, so that the dust-containing air in the suction chamber will be purified, and the purified air will finally enter the inside of the driving cylinder 5 through the air inlet 9, and finally be discharged through the exhaust pipe 10 on the driving cylinder 5.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC turning, milling and grinding machine tool, comprising a machine tool body (26), characterized in that: A grinding module is also installed on the turret of the machine tool body (26), the grinding module comprising a cover plate (1), the cover plate (1) is in an arc shape, and a grinder is slidably installed on the lower surface of the cover plate (1) along the circumferential direction; Two baffles (4) are fixedly provided on the upper surface of the cover plate (1) along its length direction. A driving cylinder (5) is rotatably mounted between the two baffles (4). The driving cylinder (5) is transmission-connected to a motor (25). A driving belt (6) is provided on the driving cylinder (5). A guide path (7) is respectively provided through both sides of the lower part of the cover plate (1). After the two ends of the driving belt (6) pass through the corresponding guide paths (7), they are fixedly connected to the adjacent ends of the sander. The side of the driving belt (6) contacts the corresponding baffles (4) so ​​that the driving belt (6) 6), an air suction chamber is formed between the two baffles (4) and the cover plate (1), and a plurality of air suction ports (12) are provided on the upper surface of the cover plate (1) in the air suction chamber; an air inlet (9) is provided on the lower surface of the driving cylinder (5), and an exhaust pipe (10) connected to the interior of the driving cylinder (5) is coaxially fixed to one end of the driving cylinder (5), and the exhaust pipe (10) is used to connect to a gas processing device; a one-way air pushing plate (8) is fixed to the inner surface of the transmission belt (6) on both sides of the driving cylinder (5), so that the transmission belt (6) can push the gas in the air suction chamber toward the air inlet (9) when it moves; The grinder comprises a plurality of transverse shafts (2), the lower surface of the cover plate (1) is provided with a plurality of transverse shafts (2) along the circumferential direction, a grinding body (3) is detachably mounted on a side of each transverse shaft (2) away from the cover plate (1), the transverse shafts (2) are fixedly connected, and the transverse shafts (2) can be slidably mounted on the cover plate (1) along the circumferential direction; A liquid storage chamber (13) is provided in the transverse axis (2), and the liquid storage chamber (13) is used to store cooling water. A liquid inlet pipe (15) is provided at one end of the transverse axis (2), and the liquid inlet pipe (15) is used to connect to a water replenishing device (27). An air jet hole (14) is provided at the other end of the transverse axis (2), and a sealing plate (16) is provided outside the other end of the transverse axis (2) to fit therewith, and the sealing plate (16) is used to shield the air jet hole (14) on the transverse axis (2). The sealing plate (16) is also provided with a plurality of air guide holes (17) corresponding to the air jet holes (14), so that the air jet holes (14) in motion can intermittently dock with the air guide holes (17); the air guide holes (17) are interconnected via a manifold (18), and nozzles (19) are provided through adjacent baffles (4), and the nozzles (19) are connected to the manifold (18).

2. The CNC turning-milling-grinding combined machining machine tool according to claim 1, characterized in that: The upper surface of the spray pipe (19) is also provided with a water pipe (20) in communication with the interior thereof, and the water pipe (20) is used to connect to a water supply device; the water pipe (20) is arranged to be inclined towards a side away from the baffle (4).

3. The CNC turning-milling-grinding combined machining machine tool according to claim 1, characterized in that: The inner walls of both sides of the lower part of the cover plate (1) in the air suction chamber are respectively provided with liquid guide channels (22) along the length direction thereof, and the inner walls of the liquid guide channels (22) are provided with liquid inlet channels (21) penetrating in the direction toward one side of the air suction chamber.

4. The CNC turning-milling-grinding combined machining machine tool according to claim 1, characterized in that: A plurality of porous porcelain balls are placed in the liquid storage cavity (13).

5. The CNC turning-milling-grinding combined machining machine tool according to claim 1, characterized in that: A flexible barrier net (11) is provided in the air suction chamber below the two one-way air thrust plates (8), and the air outlet end of the nozzle (19) is placed below the flexible barrier net (11), and the two ends of the flexible barrier net (11) are respectively fixedly connected to adjacent transmission belts (6).

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