A turning and milling composite CNC machine tool

Abstract

The present invention provides a lathe and milling compound CNC machine tool, which relates to the field of CNC machine tools, and comprises a casing, a compartment door slidably installed on the front side of the casing, a cutting fluid box located on one side of the casing, and a control panel. A processing table is arranged inside the casing, and a rotating assembly for driving the processing table to rotate is also arranged inside the casing. A pneumatic chuck is arranged at one end of the casing away from the cutting fluid box, and a tool magazine is arranged on the inner wall of the casing located on the rear side of the pneumatic chuck. The present invention integrates a lathe and a milling machine into one, and realizes different processing functions by replacing the cutting tools. At the same time, the device can process the workpiece at multiple angles through a first transverse movement mechanism, a first longitudinal movement mechanism and a first lifting mechanism, in cooperation with a vertically arranged milling cutter, a turning tool and a rotatable processing table, thereby increasing the processing range of the device.

Description

Technical Field

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

[0002] CNC machine tools refer to mechanical equipment that uses a computer control system to precisely control the movement of machine tools. It combines CNC technology with mechanical processing and uses pre-written CNC programs to achieve automated processing of workpieces. CNC machine tools can be classified according to their processing methods, structural forms, processing functions, axis number configuration, and other aspects. Generally, CNC lathes, CNC milling machines, and CNC drilling machines are more common types of CNC machine tools.

[0003] In the prior art, CNC lathes, CNC milling machines, and CNC drilling machines are all independent mechanisms. When processing complex workpieces, operators are required to install the parts on the lathes, milling machines, and drilling machines respectively to complete the corresponding processing steps. The parts cannot be processed in one go, which reduces work efficiency. At the same time, changing different machine tools to process parts not only increases the workload of the workers, but also makes the operation cumbersome and the processing complicated. Therefore, the present invention proposes a lathe and milling compound CNC machine tool to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the present invention proposes a turning and milling compound CNC machine tool, which integrates a lathe and a milling machine into one, and realizes different processing functions by replacing cutting tools. At the same time, the device uses a first transverse movement mechanism, a first longitudinal movement mechanism and a first lifting mechanism, in conjunction with a vertically arranged milling cutter, a turning tool and a rotatable processing table, to perform multi-angle processing on the workpiece, thereby increasing the processing range of the device.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a lathe and milling compound CNC machine tool, comprising a casing, a compartment door slidably installed on the front side of the casing, a cutting fluid tank located on one side of the casing, and a control panel, a processing table is arranged inside the casing, a rotating assembly for driving the processing table to rotate is also arranged inside the casing, a pneumatic chuck is arranged at one end of the casing away from the cutting fluid tank, a tool magazine is arranged on the inner wall of the casing located at the rear side of the pneumatic chuck, the height of the tool magazine is higher than the pneumatic chuck, a processing mechanism is arranged on the top inner wall of the casing, and an automatic tool changing mechanism is arranged on the side of the processing mechanism close to the tool magazine;

[0006] The processing mechanism includes a first transverse movement mechanism, a first longitudinal movement mechanism, a first lifting cylinder, a driving bin, a rotating seat, a turning tool and a milling cutter. The first longitudinal movement mechanism is located below the first transverse movement mechanism. The first transverse movement mechanism drives the first longitudinal movement mechanism to move laterally. The first lifting cylinder is installed below the first longitudinal movement mechanism. The driving bin is installed at the bottom of the first lifting cylinder. The lower end of the driving bin is tilted and rotated with a rotating seat. A turning tool is installed at one end of the rotating seat, and a milling cutter is installed at the other end. The turning tool and the milling cutter are vertically arranged. The rotating seat rotates 180° to drive the turning tool and the milling cutter to change positions.

[0007] A further improvement is that: a first mounting plate is fixed to both ends of the rotating seat, a nozzle is obliquely arranged on the inner side of the first mounting plate, and a liquid inlet is arranged on the other side of the first mounting plate.

[0008] Further improvements are: the automatic tool changing mechanism includes a second transverse movement mechanism, a second lifting cylinder, a first motor, a third lifting cylinder, a second motor and a clamp, the second transverse movement mechanism is located at the rear side of the first transverse movement mechanism and is parallel to the first transverse movement mechanism, a second lifting cylinder is installed below the second transverse movement mechanism, a first motor is provided below the second lifting cylinder, a third lifting cylinder is installed at the output end of the first motor, a second motor is fixed to one end of the third lifting cylinder, and a clamp for clamping the tool is fixed to the output end of the second motor.

[0009] A further improvement is that the rotating assembly includes a fixed block, a rotating shaft, a first gear, a second gear and a third motor, fixed blocks are fixed on the front and rear sides of the processing table, a supporting block is fixed on the inner wall of the front side of the casing, a rotating shaft is fixed on one side of the fixed block, the rotating shaft located on the front side is rotatably connected to the supporting block, the rotating shaft located on the rear side passes through the casing and is fixedly connected to the first gear, a second gear is meshed above the first gear, and a third motor for driving the second gear to rotate is fixed on the inner wall of the rear side of the casing.

[0010] A further improvement is that a support rod is provided on the inner side of the cutting fluid box, an electric telescopic rod is fixed to one end of the support rod, a second mounting plate is electromagnetically fixed to one end of the electric telescopic rod, a hose is connected to one side of the second mounting plate, the hose is connected to the cutting fluid box, a liquid outlet is provided on the other side of the second mounting plate, the liquid outlet is aligned with the liquid inlet, and the first mounting plate and the second mounting plate are electromagnetically fixed.

[0011] A further improvement is that the processing table includes a top cover, a bottom shell and a rotating table, the top of the bottom shell is provided with a top cover, the bottom shell is rotatably connected to the rotating table, the rotating table drives the bottom shell to rotate, a plurality of groups of suction ports are distributed in a circular array on the top cover, a vacuum pump is fixed to the bottom of the top cover, and the vacuum pump is connected to the plurality of groups of suction ports through a first air pipe.

[0012] Further improvements are: multiple groups of lifting columns are distributed in a circular array on the top cover, the lifting columns are hollow structures, a mounting plate is slidably installed inside the bottom shell, the bottom of the lifting column is rotatably connected to the mounting plate, a purge port is provided at the upper end of the lifting column, an elastic component is provided between the lifting column and the top cover, a third gear is provided at the lower end of the lifting column, a fourth motor is fixed at the center position of the top of the mounting plate, a fourth gear is fixed at the output end of the fourth motor, the fourth gear is meshed with multiple groups of third gears, an air pump is fixed at the center position of the bottom of the mounting plate, and the air pump is rotatably connected to the multiple groups of lifting columns through multiple groups of second air pipes.

[0013] A further improvement is that multiple groups of magnetically repelling electromagnets are symmetrically arranged between the mounting plate and the bottom inner wall of the bottom shell, and multiple groups of telescopic rods are fixed between the mounting plate and the bottom inner wall of the bottom shell. When the symmetrical electromagnets are energized, they push the mounting plate upward as a whole.

[0014] A further improvement is that the elastic component includes a fixing ring, a spring, a ball seat and an annular fixing seat, the fixing ring is fixed to the outer wall of the upper end of the lifting column, an empty groove is provided inside the top cover for the fixing ring to rise, a group of springs are fixed in an annular array at the bottom of the fixing ring, the lower end of the spring is fixed to the ball seat, a limiting ring is also clamped on one side of the ball seat, the limiting ring is fixedly connected to the top cover, an annular fixing seat is provided at the bottom of the top cover directly below the fixing ring, a ball is rotatably mounted on the ball seat, and the bottom of the ball is rollingly connected to the inner wall of the annular fixing seat.

[0015] Further improvements are: a filter plate is fixed under the processing table, a push plate is provided on the rear side of the top of the filter plate, a bin door baffle is provided on the front side of the filter plate below the support block, a liquid collecting bin is provided under the filter plate, the liquid collecting bin is connected to the cutting fluid tank, and the push plate is driven by a second longitudinal movement mechanism.

[0016] The beneficial effects of the present invention are as follows: the present invention integrates a lathe and a milling machine into one, and realizes different processing functions by replacing cutting tools. At the same time, the present device can process the workpiece at multiple angles through the first transverse movement mechanism, the first longitudinal movement mechanism and the first lifting mechanism, in cooperation with the vertically arranged milling cutter, the turning tool and the rotatable processing table, thereby increasing the processing range of the present device. At the same time, the present device adopts an adsorption fixing method to non-destructively fix some disc and plate workpieces. At the same time, through the purge port on the lifting column, and the cooperation of the fourth motor, the third gear and the fourth gear, the purge port can be driven to rotate to clean the surface of the processing table, further increasing the practicality of the present device. The present device is also provided with a filter plate to separate cutting chips and cutting fluid, and can be used to compact and push out the cutting chips in cooperation with the push plate and the compartment door baffle for easy collection and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure inside the casing of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure on the top inner wall of the casing of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the rotating seat of the present invention.

[0021] Figure 5 It is a schematic diagram of the processing table of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure inside the processing table of the present invention.

[0023] Figure 7 It is a schematic diagram of the position of the air pump of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the elastic component of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the second mounting plate of the present invention.

[0026] Fig.10 It is a schematic diagram of the positions of the filter plate, the push plate and the door baffle of the present invention.

[0027] Among them: 1. housing; 2. door; 3. cutting fluid tank; 4. control panel; 5. processing table; 6. pneumatic chuck; 7. tool magazine; 8. first transverse mechanism; 9. first longitudinal mechanism; 10. first lifting cylinder; 11. drive bin; 12. rotating seat; 13. first mounting plate; 14. nozzle; 15. liquid inlet; 16. second transverse mechanism; 17. second lifting cylinder; 18. first motor; 19. third lifting cylinder; 20. second motor; 21. fixture; 22. fixed block; 23. rotating shaft; 24. first gear; 25. second gear; 26. third motor; 27. support rod; 28. electric telescopic rod; 29. ​​second Mounting plate; 30. Hose; 31. Liquid outlet; 32. Top cover; 33. Bottom shell; 34. Turntable; 35. Vacuum pump; 36. Adsorption port; 37. First air pipe; 38. Lifting column; 39. Mounting plate; 40. Purge port; 41. Third gear; 42. Fourth motor; 43. Fourth gear; 44. Air pump; 45. Second air pipe; 46. Electromagnet; 47. Telescopic rod; 48. Fixing ring; 49. Spring; 50. Ball seat; 51. Annular fixing seat; 52. Limiting ring; 53. Ball; 54. Filter plate; 55. Push plate; 56. Support block; 57. Door baffle; 58. Liquid collecting bin; 59. Second longitudinal movement mechanism. DETAILED DESCRIPTION

[0028] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0029] according to Figure 1-Figure 10 As shown, this embodiment proposes a lathe and milling compound CNC machine tool, comprising a casing 1, a compartment door 2 slidably installed on the front side of the casing 1, a cutting fluid tank 3 located on one side of the casing 1, and a control panel 4, a processing table 5 is provided inside the casing 1, and a rotating assembly for driving the processing table 5 to rotate is also provided inside the casing 1, a pneumatic chuck 6 is provided at one end of the casing 1 away from the cutting fluid tank 3, a tool magazine 7 is provided on the inner wall of the casing 1 located at the rear side of the pneumatic chuck 6, and the height of the tool magazine 7 is higher than the pneumatic chuck 6, a processing mechanism is provided on the top inner wall of the casing 1, and an automatic tool changing mechanism is provided on the side of the processing mechanism close to the tool magazine 7;

[0030] The processing table 5 and the pneumatic chuck 6 of the device are used to position the workpiece, wherein the processing table 5 is mostly used for positioning discs, plates and large workpieces, while the pneumatic chuck 6 is used for positioning sleeves and thin cylindrical workpieces;

[0031] The processing mechanism includes a first transverse movement mechanism 8, a first longitudinal movement mechanism 9, a first lifting cylinder 10, a driving bin 11, a rotating seat 12, a turning tool and a milling cutter. The first longitudinal movement mechanism 9 is located below the first transverse movement mechanism 8. The first transverse movement mechanism 8 drives the first longitudinal movement mechanism 9 to move laterally. The first lifting cylinder 10 is installed below the first longitudinal movement mechanism 9. The driving bin 11 is installed at the bottom of the first lifting cylinder 10. The rotating seat 12 is installed at the lower end of the driving bin 11 in an inclined and rotating manner. A turning tool is installed at one end of the rotating seat 12, and a milling cutter is installed at the other end. The turning tool and the milling cutter are vertically arranged. The rotating seat 12 rotates 180° to drive the turning tool and the milling cutter to change positions.

[0032] The device drives the turning tool and the milling cutter to move horizontally through the first transverse movement mechanism 8, drives the turning tool and the milling cutter to move longitudinally through the first longitudinal movement mechanism 9, drives the turning tool and the milling cutter to move vertically through the first lifting cylinder 10, and drives the rotating seat 12 to rotate through the driving bin 11, thereby driving the turning tool and the milling cutter to change their positions. When the rotating seat 12 rotates 180°, the turning tool and the milling cutter are exchanged in position. By vertically distributing the turning tool and the milling cutter, the workpiece can be processed vertically and horizontally. The turning tool and the milling cutter of the device are fixed to the rotating seat 12 by hydraulic clamping.

[0033] A first mounting plate 13 is fixed to both ends of the rotating seat 12, a nozzle 14 is obliquely arranged on the inner side of the first mounting plate 13, and a liquid inlet 15 is arranged on the other side of the first mounting plate 13.

[0034] The automatic tool changing mechanism includes a second transverse movement mechanism 16, a second lifting cylinder 17, a first motor 18, a third lifting cylinder 19, a second motor 20 and a clamp 21. The second transverse movement mechanism 16 is located at the rear side of the first transverse movement mechanism 8 and is parallel to the first transverse movement mechanism 8. The second lifting cylinder 17 is installed below the second transverse movement mechanism 16. The first motor 18 is provided below the second lifting cylinder 17. The third lifting cylinder 19 is installed at the output end of the first motor 18. The second motor 20 is fixed to one end of the third lifting cylinder 19. The clamp 21 for clamping the tool is fixed to the output end of the second motor 20.

[0035] This device drives the clamp 21 to move horizontally through the second transverse movement mechanism 16, and the second lifting cylinder 17 is used to drive the clamp 21 to move vertically and adjust the height, so as to clamp the tool at different positions on the tool holder. The first motor 18 is used to drive the clamp 21 to rotate in the horizontal direction, so that it can move the tool to the position directly below the tool installation position on the rotating seat 12, and the second lifting cylinder 17 drives the clamp 21 to move upward so that the tool handle is plugged and fixed to the rotating seat 12. The third lifting cylinder 19 is set in conjunction with the first motor 18 to drive the clamp 21 to move in the horizontal and longitudinal positions, wherein the horizontal movement is used for alignment between the tool handle and the rotating seat 12, and the longitudinal movement is used to push the clamp 21 to perform clamping work. The second motor 20 is set to drive the clamp 21 to rotate in the vertical direction, so as to flip the knife and rotate the tool handle to the top.

[0036] The rotating assembly includes a fixed block 22, a rotating shaft 23, a first gear 24, a second gear 25 and a third motor 26. Fixed blocks 22 are fixed on the front and rear sides of the processing table 5. A supporting block 56 is fixed on the inner wall of the front side of the casing 1. A rotating shaft 23 is fixed on one side of the fixed block 22. The rotating shaft 23 located on the front side is rotatably connected to the supporting block 56. The rotating shaft 23 located on the rear side passes through the casing 1 and is fixedly connected to the first gear 24. The second gear 25 is meshed above the first gear 24. A third motor 26 that drives the second gear 25 to rotate is fixed on the inner wall of the rear side of the casing 1.

[0037] The device starts the third motor 26, which starts the second gear 25 to rotate, thereby driving the first gear 24 to rotate, and then through the rotating shaft 23 and the fixed block 22, the rotating table is mobilized to adjust the angle, further increasing the processing range of the device.

[0038] A support rod 27 is provided on the inner side of the cutting fluid box 3, an electric telescopic rod 28 is fixed to one end of the support rod 27, a second mounting plate 29 is electromagnetically fixed to one end of the electric telescopic rod 28, a hose 30 is connected to one side of the second mounting plate 29, the hose 30 is connected to the cutting fluid box 3, a liquid outlet 31 is provided on the other side of the second mounting plate 29, the liquid outlet 31 is aligned with the liquid inlet 15, and the first mounting plate 13 and the second mounting plate 29 are electromagnetically fixed.

[0039] The device is provided with a first mounting plate 13 on the side of the rotating seat 12, and a nozzle 14 is provided on the first mounting plate 13. The angle of the nozzle 14 is toward the position of the cutter head, and a liquid inlet 15 is provided on the other side of the first mounting plate 13. In cooperation with the electric telescopic rod 28, when preparing for cutting, the electric telescopic rod 28 is used to push the second mounting plate 29 to be assembled with the first mounting plate 13, and the liquid outlet 31 is also aligned with the liquid inlet 15 to achieve communication. The first mounting plate 13 and the second mounting plate 29 are fixed by magnetic attraction, and the electric telescopic rod 28 is disconnected from the second mounting plate 29, so as to ensure that the second mounting plate 29 moves synchronously when the rotating seat 12 moves horizontally, longitudinally and vertically. When changing the tool, the second mounting plate 29 is fixed to the electric telescopic rod 28 by magnetic attraction, and the first mounting plate 13 and the second mounting plate 29 are disconnected.

[0040] The processing table 5 includes a top cover 32, a bottom shell 33 and a rotating table 34. The top cover 32 is provided on the top of the bottom shell 33. The bottom shell 33 is rotatably connected to the rotating table 34. The rotating table 34 drives the bottom shell 33 to rotate. A plurality of groups of suction ports 36 are distributed in a circular array on the top cover 32. A vacuum pump 35 is fixed to the bottom of the top cover 32. The vacuum pump 35 is connected to the plurality of groups of suction ports 36 through a first air pipe 37.

[0041] The device sets a plurality of adsorption ports 36 on the top cover 32 of the processing table 5, and absorbs air through the vacuum pump 35 and the first air pipe 37, so as to achieve the effect of vacuum adsorption and fixation between the adsorption ports 36 and the bottom of the workpiece, thereby achieving the fixation of plate and disc workpieces, and at the same time drives the workpiece to rotate through the rotating table 34, thereby further increasing the processing range of the workpiece.

[0042] A plurality of lifting columns 38 are arranged in a circular array on the top cover 32, and the lifting columns 38 are of a hollow structure. A mounting plate 39 is slidably mounted inside the bottom shell 33, and the bottom of the lifting column 38 is rotatably connected to the mounting plate 39. A purge port 40 is provided at the upper end of the lifting column 38, and an elastic component is provided between the lifting column 38 and the top cover 32. A third gear 41 is provided at the lower end of the lifting column 38. A fourth motor 42 is fixed at the center position of the top of the mounting plate 39, and a fourth gear 43 is fixed at the output end of the fourth motor 42. The fourth gear 43 is meshed with the plurality of third gears 41. An air pump 44 is fixed at the center position of the bottom of the mounting plate 39, and the air pump 44 is rotatably connected to the plurality of lifting columns 38 through a plurality of second air pipes 45.

[0043] The device is provided with multiple groups of lifting columns 38 on the top cover 32, and the side walls of the lifting columns 38 are provided with purge ports 40. After the turning and milling work is completed, the processing table 5 is tilted and then air is blown through the purge ports 40. At the same time, the device uses a vacuum pump 35 with an exhaust function, so that the vacuum pump 35 also performs exhaust and blowing work synchronously, thereby blowing the cutting chips on the processing table 5 off and preventing the cutting chips from blocking the adsorption port 36. The device drives the fourth gear 43 to rotate through the fourth motor 42, thereby driving the multiple groups of third gears 41 to rotate synchronously, and then driving the purge port 40 to rotate, and the surface of the processing table 5 is omnidirectionally purged to ensure the cleanliness of the surface of the processing table 5.

[0044] A plurality of groups of magnetically repelling electromagnets 46 are symmetrically arranged between the mounting plate 39 and the bottom inner wall of the bottom shell 33. A plurality of groups of telescopic rods 47 are also fixed between the mounting plate 39 and the bottom inner wall of the bottom shell 33. When the symmetrical electromagnets 46 are energized, they push the mounting plate 39 upward as a whole.

[0045] The device uses the principle of magnets with the same poles repelling each other, and energizes the upper and lower electromagnets 46 to produce a repulsive reaction, thereby pushing the lifting column 38 upward as a whole. The arrangement of multiple sets of telescopic rods 47 can ensure the stability of the lifting column 38 when moving upward.

[0046] The elastic component includes a fixing ring 48, a spring 49, a ball seat 50 and an annular fixing seat 51. The fixing ring 48 is fixed to the outer wall of the upper end of the lifting column 38. An empty groove is provided inside the top cover 32 for the fixing ring 48 to rise. A group of springs 49 are fixed to the bottom of the fixing ring 48 in an annular array. The lower end of the spring 49 is fixed to the ball seat 50. A limiting ring 52 is also clamped on one side of the ball seat 50. The limiting ring 52 is fixedly connected to the top cover 32. An annular fixing seat 51 is provided at the bottom of the top cover 32, which is located directly below the fixing ring 48. A ball 53 is rotatably mounted on the ball seat 50, and the bottom of the ball 53 is rollingly connected to the inner wall of the annular fixing seat 51.

[0047] When the device is in turning and milling operation, the lifting column 38 is pulled to retract by the elastic potential energy of the spring 49, and can be automatically reset after the electromagnet 46 is powered off. The setting of the ball seat 50 and the ball 53 ensures the stability of the rotation of the elastic component.

[0048] A filter plate 54 is fixed below the processing table 5, a push plate 55 is provided on the rear side of the top of the filter plate 54, a door baffle 57 is provided on the front side of the filter plate 54 below the support block 56, a liquid collecting bin 58 is provided below the filter plate 54, the liquid collecting bin 58 is connected to the cutting fluid tank 3, and the push plate 55 is driven by a second longitudinal movement mechanism 59.

[0049] The first transverse mechanism 8, the second transverse mechanism 16, the first longitudinal mechanism 9 and the second longitudinal mechanism 59 of the device have the same working principle. The device classifies the cutting chips and the cutting fluid through the filter plate 54, wherein the liquid enters the liquid collecting bin 58 through the filter plate 54, and the cutting chips are driven by the push plate 55 to move through the second longitudinal mechanism 59, and the cutting chips are compacted in cooperation with the bin door baffle 57. After a period of time, the compacted cutting chips are pushed out by opening the bin door baffle 57 for recycling, which is relatively convenient.

[0050] When the turning and milling compound CNC machine tool is working, some small-diameter long columns are fixed by pneumatic claws, and some large plates or disks are placed on the processing table 5, and vacuum pump 35 is started to fix them through the suction port 36. When the workpiece is fixed, the tool on the rotating seat 12 is driven to move forward and backward, left and right, and up and down through the first transverse movement mechanism 8, the first longitudinal movement mechanism 9 and the first lifting cylinder 10. At the same time, the third motor 26 is started, and the third motor 26 starts the second gear 25 to rotate, thereby driving the first gear 24 to rotate, and then through the rotating shaft 23 and the fixed block 22, the rotating table is mobilized to adjust the angle, and further The processing range of the device is increased. When the tool needs to be changed, the rotating seat 12 is moved to the side of the tool magazine 7 through the first transverse movement mechanism 8, and then the clamp 21 is driven by the second transverse movement mechanism 16 to move horizontally to select the tool. Then, the clamp 21 is pushed by the third lifting cylinder 19 to clamp and take out the tool. Then, the clamp 21 and the tool are rotated 90 degrees clockwise by the first motor 18, and then the clamp 21 and the tool are driven by the second motor 20 to rotate 180 degrees, so that the handle of the tool is facing upward, and then the second transverse movement mechanism 16, the first longitudinal movement mechanism 9, the second lifting cylinder 17 and the third lifting cylinder 19 cooperate with each other to install the tool on the rotating seat 12 to complete the tool change.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lathe and milling composite CNC machine tool, comprising a housing (1), a door (2) slidably mounted on the front side of the housing (1), a cutting fluid tank (3) located on one side of the housing (1), and a control panel (4), characterized in that: A processing table (5) is provided inside the casing (1), and a rotating assembly for driving the processing table (5) to rotate is also provided inside the casing (1); a pneumatic chuck (6) is provided at one end of the casing (1) away from the cutting fluid tank (3); a tool magazine (7) is provided on the inner wall of the casing (1) at the rear side of the pneumatic chuck (6); the height of the tool magazine (7) is higher than that of the pneumatic chuck (6); a processing mechanism is provided on the top inner wall of the casing (1); and an automatic tool changing mechanism is provided on the side of the processing mechanism close to the tool magazine (7); The processing mechanism comprises a first transverse movement mechanism (8), a first longitudinal movement mechanism (9), a first lifting cylinder (10), a driving bin (11), a rotating seat (12), a turning tool and a milling cutter, wherein the first longitudinal movement mechanism (9) is located below the first transverse movement mechanism (8), the first transverse movement mechanism (8) drives the first longitudinal movement mechanism (9) to move transversely, a first lifting cylinder (10) is installed below the first longitudinal movement mechanism (9), a driving bin (11) is installed at the bottom of the first lifting cylinder (10), a rotating seat (12) is installed at the lower end of the driving bin (11) in an inclined and rotatable manner, a turning tool is installed at one end of the rotating seat (12), and a milling cutter is installed at the other end, the turning tool and the milling cutter are vertically arranged, and the rotating seat (12) rotates 180 degrees to drive the turning tool and the milling cutter to change positions; The processing table (5) comprises a top cover (32), a bottom shell (33) and a rotating table (34); the top of the bottom shell (33) is provided with the top cover (32); the bottom shell (33) and the rotating table (34) are rotatably connected; the rotating table (34) drives the bottom shell (33) to rotate; a plurality of groups of adsorption ports (36) are distributed in an annular array on the top cover (32); a vacuum pump (35) is fixed at the bottom of the top cover (32); the vacuum pump (35) is connected to the plurality of groups of adsorption ports (36) via a first air pipe (37); A plurality of lifting columns (38) are arranged in a circular array on the top cover (32), the lifting columns (38) being of a hollow structure, a mounting plate (39) being slidably mounted inside the bottom shell (33), the bottom of the lifting column (38) being rotatably connected to the mounting plate (39), a purge port (40) being provided at the upper end of the lifting column (38), an elastic component being provided between the lifting column (38) and the top cover (32), a third gear (41) being provided at the lower end of the lifting column (38), a fourth motor (42) being fixed at the center position of the top of the mounting plate (39), a fourth gear (43) being fixed at the output end of the fourth motor (42), the fourth gear (43) being meshed with the plurality of third gears (41), an air pump (44) being fixed at the center position of the bottom of the mounting plate (39), the air pump (44) being rotatably connected to the plurality of lifting columns (38) through the plurality of second air pipes (45).

2. A turning and milling compound CNC machine tool according to claim 1, characterized in that: A first mounting plate (13) is fixed to both ends of the rotating seat (12), a spray head (14) is obliquely arranged on the inner side of the first mounting plate (13), and a liquid inlet (15) is arranged on the other side of the first mounting plate (13).

3. The turning and milling compound CNC machine tool according to claim 1, characterized in that: The automatic tool changing mechanism comprises a second transverse movement mechanism (16), a second lifting cylinder (17), a first motor (18), a third lifting cylinder (19), a second motor (20) and a clamp (21), wherein the second transverse movement mechanism (16) is located at the rear side of the first transverse movement mechanism (8) and is parallel to the first transverse movement mechanism (8), a second lifting cylinder (17) is installed below the second transverse movement mechanism (16), a first motor (18) is provided below the second lifting cylinder (17), a third lifting cylinder (19) is installed at the output end of the first motor (18), a second motor (20) is fixed to one end of the third lifting cylinder (19), and a clamp (21) for clamping a tool is fixed to the output end of the second motor (20).

4. The turning and milling compound CNC machine tool according to claim 1, characterized in that: The rotating assembly comprises a fixed block (22), a rotating shaft (23), a first gear (24), a second gear (25) and a third motor (26); the fixed blocks (22) are fixed on both the front and rear sides of the processing table (5); a supporting block (56) is fixed on the inner wall of the front side of the casing (1); a rotating shaft (23) is fixed on one side of the fixed block (22); the rotating shaft (23) located on the front side is rotatably connected to the supporting block (56); the rotating shaft (23) located on the rear side passes through the casing (1) and is fixedly connected to the first gear (24); the second gear (25) is meshed above the first gear (24); and a third motor (26) for driving the second gear (25) to rotate is fixed on the inner wall of the rear side of the casing (1).

5. The turning and milling compound CNC machine tool according to claim 2, characterized in that: A support rod (27) is provided on the inner side of the cutting fluid box (3); an electric telescopic rod (28) is fixed to one end of the support rod (27); a second mounting plate (29) is electromagnetically fixed to one end of the electric telescopic rod (28); a hose (30) is connected to one side of the second mounting plate (29); the hose (30) is in communication with the cutting fluid box (3); a liquid outlet (31) is provided on the other side of the second mounting plate (29); the liquid outlet (31) is aligned with the liquid inlet (15); and the first mounting plate (13) and the second mounting plate (29) are electromagnetically fixed to each other.

6. The turning and milling compound CNC machine tool according to claim 1, characterized in that: A plurality of groups of electromagnets (46) with magnetic repulsion are symmetrically arranged between the mounting plate (39) and the bottom inner wall of the bottom shell (33), and a plurality of groups of telescopic rods (47) are fixed between the mounting plate (39) and the bottom inner wall of the bottom shell (33). When the electromagnets (46) are symmetrically arranged, they push the mounting plate (39) upward as a whole.

7. A turning and milling compound CNC machine tool according to claim 6, characterized in that: The elastic component comprises a fixing ring (48), a spring (49), a ball seat (50) and an annular fixing seat (51); the fixing ring (48) is fixed to the outer wall of the upper end of the lifting column (38); a slot for the fixing ring (48) to rise is provided inside the top cover (32); springs (49) are fixed to the bottom of the fixing ring (48) in an annular array; the lower end of the spring (49) is fixed to the ball seat (50); a limiting ring (52) is also clamped on one side of the ball seat (50); the limiting ring (52) is fixedly connected to the top cover (32); an annular fixing seat (51) is provided at the bottom of the top cover (32) directly below the fixing ring (48); a ball (53) is rotatably mounted on the ball seat (50); the bottom of the ball (53) is rollingly connected to the inner wall of the annular fixing seat (51).

8. The turning and milling compound CNC machine tool according to claim 4, characterized in that: A filter plate (54) is fixed below the processing table (5), a push plate (55) is provided on the rear side of the top of the filter plate (54), a bin door baffle (57) is provided on the front side of the filter plate (54) at a position below the support block (56), a liquid collecting bin (58) is provided below the filter plate (54), the liquid collecting bin (58) is connected to the cutting fluid tank (3), and the push plate (55) is driven by a second longitudinal movement mechanism (59).

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