A multi-station CNC machine tool with interchangeable modules

Abstract

This invention relates to the field of machine tool technology and discloses a multi-station CNC machine tool with interchangeable modules. The machine tool includes a circular base, a worktable rotatably connected to the circular base, and a module interchange component. The module interchange component includes a mounting plate, a lifting component, and a mode switching component. The lifting component is positioned above the support plate, and the mounting plate is positioned on top of the lifting component. Rotary plates are rotatably connected to both sides of the mounting plate. Each rotary plate is equipped with a flat motor, and each flat motor has a turntable on its top. Multiple connecting posts are spaced apart on the top of the turntables, and pneumatic chucks are positioned on the top of the connecting posts. In this invention, the module interchange component allows for free interchange of tool modules between two adjacent vertical or horizontal lathes without requiring manual machine stoppage for replacement. It also allows for free changes to the machining sequence, effectively increasing the richness of machining methods. Furthermore, the tool modules have strong compatibility, enhancing the flexibility of machine tool processing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tools, in particular to a multi-station numerical control machine tool with interchangeable modules. BACKGROUND

[0002] A numerical control machine tool is used to automatically process a workpiece according to a pre-prepared processing program. The processing program is prepared by writing the processing route, processing parameters, tool movement trajectory, displacement, cutting parameters and auxiliary functions of the workpiece into a processing program sheet according to the instruction codes and program formats specified by the numerical control machine tool, recording the contents in the program sheet on a control medium, and then inputting the contents into the numerical control device of the numerical control machine tool to command the machine tool to process the workpiece.

[0003] Traditional machine tools can only perform one process at a time, and a product needs to be continuously processed through multiple processes to be manufactured, so a multi-station machine tool has been developed. The machine tool is designed with multiple processing stations and can continuously perform multiple cutting operations on a blank, which can be quickly processed into a finished product, greatly improving production efficiency.

[0004] However, the existing multi-station machine tool has a tool module that is usually fixed on the machine tool. When the processed product changes, the tool modules in different stations need to be stopped and replaced one by one because the adjacent tool modules do not match each other. The tool modules cannot be interchanged, which not only makes the processing method single, but also makes the compatibility of the tool modules poor, resulting in insufficient flexibility of the machine tool processing.

[0005] Therefore, the present application provides a multi-station numerical control machine tool with interchangeable modules to solve the above problems. SUMMARY

[0006] The present application aims to provide a multi-station numerical control machine tool with interchangeable modules to solve the problems presented in the background.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a multi-station numerical control machine tool with interchangeable modules, comprising a circular base and a work disc rotatably connected to the circular base, further comprising a rotary switching assembly, the rotary switching assembly comprising a servo motor, a circular guide rail and a support disc, the circular guide rail being arranged at the bottom of the work disc, the support disc being rotatably connected to the circular guide rail, the output shaft of the servo motor being drivingly connected to the support disc through a first one-way bearing;

[0008] The module interchanging assembly comprises a mounting plate, a lifting component and a mode switching component, the lifting component is arranged above the support disc, the mounting plate is arranged on the top of the lifting component, rotary plates are rotatably connected to the two sides of the mounting plate, flat motors are arranged on each rotary plate, a turntable is arranged on the top of each flat motor, the output shaft of the flat motor is fixedly connected to the bottom center of the turntable, a plurality of connecting columns are arranged at intervals on the top of the turntable, and pneumatic clamping jaws are arranged on the top of the connecting columns.

[0009] Through the above technical scheme, the module interchanging assembly can freely interchange the tool modules in the two adjacent groups of vertical lathes or horizontal lathes (as described below), without the need for manual shutdown and replacement, and can freely change the processing sequence, effectively improving the richness of the processing mode, and the compatibility of the tool modules is strong, which can improve the flexibility of machine tool processing.

[0010] Further, the inside of the circular base is provided with a control motor, the output shaft of the control motor is fixedly connected to the working disc, a plurality of vertical lathes are arranged at intervals around the working disc, a horizontal lathe is arranged between adjacent vertical lathes, a mechanical arm is arranged beside the working disc, and a plurality of chucks are arranged on the top of the working disc.

[0011] Through the above technical scheme, the mechanical arm is used for placing the blank in the chuck and taking out the product after processing, and the blanks on the multiple chucks can be transported as the working disc rotates and switches, and the same blank can be subjected to cutting processing by multiple different vertical lathes and horizontal lathes to quickly form a product, and the continuity and efficiency of production are higher.

[0012] Further, the lifting component comprises two telescopic limiting columns, the two telescopic limiting columns are arranged between the mounting plate and the support disc, a pneumatic cylinder is arranged on the top of the support disc, and the output end of the pneumatic cylinder is fixedly connected to the bottom of the mounting plate.

[0013] Through the above technical scheme, the lifting component can adjust the height of the two pneumatic clamping jaws to adapt to the different heights of the vertical lathes and the horizontal lathes, the pneumatic clamping jaws can be docked with the tool modules on the vertical lathes or the horizontal lathes, and under the action of the flat motor, the corresponding tool modules can be quickly rotated and taken off or installed.

[0014] Further, a multi-stage telescopic rod is slidably connected to the output shaft of the servo motor, a second one-way bearing is arranged on the outer wall of the multi-stage telescopic rod, and a driving gear is sleeved on the second one-way bearing.

[0015] Further, the mode switching component comprises a one-way transmission part, a driving shaft and a limiting rod, the driving shaft is rotationally connected to the bottom of the mounting plate, the limiting rod is rotationally connected to the side of the driving shaft, both ends of the driving shaft are provided with reciprocating sliding groove sections, each reciprocating sliding groove section is provided with a driving sliding block, and each driving sliding block is in sliding fit with the limiting rod.

[0016] Through the above technical scheme, when the servo motor rotates clockwise, the mounting plate on the supporting disc can be driven to rotate under the one-way transmission of the first one-way bearing, thereby the two pneumatic clamping jaws can be rotated and switched, so that the two pneumatic clamping jaws are rotated to the positions corresponding to the tool modules, the tool modules are convenient to interchange, and under the action of the second one-way bearing, the driving gear will not be driven at this time, and similarly, when the servo motor rotates counterclockwise, the mounting plate will not rotate, and at this time the driving gear will also rotate counterclockwise, thereby the driving shaft can be driven to rotate.

[0017] Further, the one-way transmission part comprises a mounting frame and a connecting shaft, the mounting frame is fixedly connected with the movable ends of the two telescopic limiting columns, the connecting shaft is rotationally connected to the mounting frame, a worm is rotationally connected to the mounting frame, and the worm is meshed and connected with the connecting shaft through a pair of pinions.

[0018] Further, the one-way transmission part further comprises a worm wheel and a rotating gear, the rotating gear is arranged at one end of the connecting shaft away from the pinions, the worm wheel is arranged at the middle part of the driving shaft, the worm wheel is in transmission connection with the worm, and the rotating gear is meshed with the driving gear.

[0019] Through the above technical scheme, when the driving shaft rotates, the two driving sliding blocks can be driven to reciprocate through the two reciprocating sliding groove sections on the driving shaft.

[0020] Further, both sides of the bottom of the mounting plate are provided with sliding rails, each sliding rail is slidably connected with a sliding push block, each sliding push block corresponds to one driving sliding block, and each sliding push block is connected with the corresponding driving sliding block through a hinged push rod.

[0021] Further, one end of each hinged push rod is hinged with the driving sliding block, and the other end of each hinged push rod is hinged with the sliding push block.

[0022] Further, the bottom of each rotating plate is provided with a vertical rod, the bottom of each vertical rod is rotationally connected with a connecting rod, each connecting rod corresponds to one sliding push block, and one end of each connecting rod away from the vertical rod is hinged with the corresponding sliding push block.

[0023] Through the technical scheme, when the driving slider reciprocates on the driving shaft, the hinged push rod can drive the sliding push block to slide on the slide rail, the sliding push block can continue to drive the vertical rod to move through the connecting rod, and when the vertical rod moves, the rotating plate can be driven to rotate because the vertical rod is arranged at the bottom of the rotating plate, and then the angle of the rotating plate can be switched, when the rotating plate is in a horizontal state, the pneumatic clamping claw above the rotating plate can exchange the tool modules on the adjacent vertical lathe, and when the rotating plate is in a vertical state, the pneumatic clamping claw above the rotating plate can exchange the tool modules on the adjacent horizontal lathe, compared with the prior art, the structure is more compact, and the tool module exchange can be quickly completed without stopping for manual replacement.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] Firstly, in the present application, the module exchange assembly can freely exchange the tool modules in the two adjacent vertical lathes or horizontal lathes, does not need manual replacement, can freely change the processing sequence, can effectively improve the richness of the processing mode, and the compatibility of the tool modules is strong, and the flexibility of the lathe processing can be improved.

[0026] Secondly, in the present application, the lifting component can adjust the height of the two pneumatic clamping claws to adapt to the different heights of the vertical lathe and the horizontal lathe, the pneumatic clamping claw can be connected with the tool module on the vertical lathe or the horizontal lathe, and under the action of the flat motor, the corresponding tool module can be quickly rotated and removed or installed.

[0027] Thirdly, in the present application, when the servo motor rotates clockwise, under the one-way transmission effect of the first one-way bearing, the two pneumatic clamping claws can be rotated to the positions of the corresponding tool modules, so that the tool modules can be conveniently exchanged, and under the action of the second one-way bearing, the driving gear will not be driven to rotate, and similarly, when the servo motor rotates counterclockwise, the mounting plate will not rotate, and at this time, the driving gear will also rotate counterclockwise, so as to drive the driving shaft to rotate, and the horizontal rotation of the pneumatic clamping claw and the vertical angle conversion can be completed through the same servo motor, and the adaptability is stronger.

[0028] Fourthly, in the present application, the mechanical arm is used for placing the blank in the chuck and taking out the product after processing, and the blanks on the multiple chucks can be conveyed through the rotation switching of the work disc, and the same blank can be quickly formed after being cut by multiple different vertical lathes and horizontal lathes, and the continuity and efficiency of production are higher. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0030] Figure 2Structure schematic diagram of the control motor in the application;

[0031] Figure 3 Structure schematic diagram of the part in the application;

[0032] Figure 4 Structure schematic diagram of the part in the application; Figure 3 Enlarged view of A in the figure;

[0033] Figure 5 Structure schematic diagram of the rotating plate in the application;

[0034] Figure 6 Structure schematic diagram of the driving gear in the application;

[0035] Figure 7 Structure schematic diagram of the part in the application; Figure 6 Enlarged view of B in the figure;

[0036] Figure 8 Structure schematic diagram of the reciprocating sliding groove section in the application;

[0037] Figure 9 Structure schematic diagram of the part in the application; Figure 8 Enlarged view of C in the figure;

[0038] Figure 10 Schematic diagram of the pneumatic clamping jaw in a horizontal state in the application;

[0039] Figure 11 Schematic diagram of the pneumatic clamping jaw in a vertical state in the application.

[0040] In the figure: 1, round base; 2, work disc; 3, vertical lathe; 4, horizontal lathe; 5, mechanical arm; 6, chuck; 7, control motor; 8, servo motor; 9, mounting plate; 10, round guide rail; 11, rotating plate; 12, first one-way bearing; 13, second one-way bearing; 14, support disc; 15, air cylinder; 16, telescopic limiting column; 17, flat motor; 18, rotating disc; 19, pneumatic clamping jaw; 20, connecting column; 21, vertical rod; 22, connecting rod; 23, sliding rail; 24, sliding push block; 25, hinged push rod; 26, driving sliding block; 27, driving gear; 28, reciprocating sliding groove section; 29, limiting rod; 30, worm wheel; 31, worm; 32, mounting frame; 33, rotating gear; 34, connecting shaft; 35, driving shaft; 36, multi-stage telescopic rod; 37, small gear. DETAILED DESCRIPTION

[0041] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0042] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0044] In the embodiments of the present application, as shown in Figures 1-11 A multi-station numerical control machine tool with interchangeable modules, comprising a circular base 1 and a work disc 2 rotatably connected to the circular base 1, further comprising a rotary switching assembly, the rotary switching assembly comprising a servo motor 8, a circular guide rail 10 and a support disc 14, the circular guide rail 10 being arranged at the bottom of the work disc 2, the support disc 14 being rotatably connected to the circular guide rail 10, the output shaft of the servo motor 8 being drivingly connected to the support disc 14 through a first one-way bearing 12;

[0045] The module interchanging assembly comprises a mounting plate 9, a lifting component and a mode switching component, the lifting component is arranged above the support disc 14, the mounting plate 9 is arranged at the top of the lifting component, and the two sides of the mounting plate 9 are rotationally connected with rotary plates 11; each rotary plate 11 is provided with a flat motor 17, the top of each flat motor 17 is provided with a rotating disc 18, the output shaft of the flat motor 17 is fixedly connected with the bottom center of the rotating disc 18, and a plurality of connecting columns 20 are arranged at the top of the rotating disc 18 in a spaced mode; and the top of the plurality of connecting columns 20 is provided with pneumatic clamping jaws 19.

[0046] In the application, the module interchanging assembly can freely interchange the tool modules in the two groups of vertical lathes 3 or horizontal lathes 4 (as follows) adjacent to each other, without manual shutdown and replacement, can freely change the processing sequence, can effectively improve the richness of the processing mode, and has strong compatibility of the tool modules, so that the flexibility of the machine tool processing is improved.

[0047] As shown in Figures 1-3 , the inside of the circular base 1 is provided with a control motor 7, the output shaft of the control motor 7 is fixedly connected with a work disc 2, a plurality of vertical lathes 3 are arranged at the periphery of the work disc 2 in a spaced mode, a horizontal lathe 4 is arranged between the adjacent vertical lathes 3, a mechanical arm 5 is arranged beside the work disc 2, and a plurality of chucks 6 are arranged at the top of the work disc 2.

[0048] It is worth noting that the mechanical arm 5 is used for placing the blank in the chuck 6 and taking down the product after processing, and the blanks on the plurality of chucks 6 can be transported with the rotation switching of the work disc 2; the same blank can be subjected to cutting processing through a plurality of different vertical lathes 3 and horizontal lathes 4, and then rapidly formed, so that the continuity and efficiency of production are higher.

[0049] As shown in Figures 4-6 , the lifting component comprises two telescopic limiting columns 16, the two telescopic limiting columns 16 are arranged between the mounting plate 9 and the support disc 14, the top of the support disc 14 is provided with a pneumatic cylinder 15, and the output end of the pneumatic cylinder 15 is fixedly connected with the bottom of the mounting plate 9.

[0050] It should be pointed out that the lifting component can adjust the height of the two pneumatic clamping jaws 19 to adapt to different heights of the vertical lathes 3 and the horizontal lathes 4; the pneumatic clamping jaws 19 can be connected with the tool modules on the vertical lathes 3 or the horizontal lathes 4, and under the action of the flat motor 17, the corresponding tool modules can be quickly rotated and taken down or installed.

[0051] As shown in Figures 5-6 , the output shaft of the servo motor 8 is slidingly connected with a multi-stage telescopic rod 36, the outer wall of the multi-stage telescopic rod 36 is provided with a second one-way bearing 13, and the second one-way bearing 13 is sleeved with a driving gear 27.

[0052] As Figures 7-9 shown, the mode switching component includes a one-way transmission member, a drive shaft 35, and a limiting rod 29. The drive shaft 35 is rotationally connected to the bottom of the mounting plate 9. The limiting rod 29 is rotationally connected to the side of the drive shaft 35. The two ends of the drive shaft 35 are each provided with a reciprocating sliding groove section 28. Each reciprocating sliding groove section 28 is provided with a drive sliding block 26. Each drive sliding block 26 is in sliding cooperation with the limiting rod 29.

[0053] It is worth mentioning that when the servo motor 8 rotates clockwise, under the one-way transmission effect of the first one-way bearing 12, the mounting plate 9 on the support disc 14 can be driven to rotate, thereby driving the two pneumatic clamping jaws 19 to rotate and switch positions, so that the two pneumatic clamping jaws 19 are rotated to positions corresponding to the tool modules, facilitating the exchange of the tool modules. Under the effect of the second one-way bearing 13, the drive gear 27 will not be driven at this time. Similarly, when the servo motor 8 rotates counterclockwise, the mounting plate 9 will not rotate, and at this time the drive gear 27 will also rotate counterclockwise, thereby driving the drive shaft 35 to rotate.

[0054] As Figures 7-10 shown, the one-way transmission member includes a mounting frame 32 and a connecting shaft 34. The mounting frame 32 is fixedly connected to the movable ends of the two telescopic limiting columns 16. The connecting shaft 34 is rotationally connected to the mounting frame 32. The mounting frame 32 is rotationally connected to a worm 31. The worm 31 is meshingly connected to the connecting shaft 34 through a pair of pinions 37. The one-way transmission member further includes a worm wheel 30 and a rotating gear 33. The rotating gear 33 is arranged at one end of the connecting shaft 34 away from the pinions 37. The worm wheel 30 is arranged at the middle part of the drive shaft 35. The worm wheel 30 is in transmission connection with the worm 31. The rotating gear 33 is in meshing connection with the drive gear 27.

[0055] As Figures 8-11 shown, the bottom of the mounting plate 9 is provided with a slide rail 23 on each side. Each slide rail 23 is slidingly connected to a sliding push block 24. Each sliding push block 24 corresponds to one drive sliding block 26. Each sliding push block 24 is connected to the corresponding drive sliding block 26 through a hinged push rod 25. One end of each hinged push rod 25 is hingedly connected to the drive sliding block 26. The other end of each hinged push rod 25 is hingedly connected to the sliding push block 24. The bottom of each rotating plate 11 is provided with a vertical rod 21. The bottom of each vertical rod 21 is rotationally connected to a connecting rod 22. Each connecting rod 22 corresponds to one sliding push block 24. One end of each connecting rod 22 away from the vertical rod 21 is hingedly connected to the corresponding sliding push block 24.

[0056] It is worth noting that when the driving shaft 35 rotates, the two driving sliding blocks 26 are driven to reciprocate through the two reciprocating sliding groove sections 28 on the driving shaft 35, when the driving sliding blocks 26 reciprocate on the driving shaft 35, the sliding push block 24 can be driven to slide on the slide rail 23 through the hinged push rod 25, and the sliding push block 24 can continue to drive the vertical rod 21 to move through the connecting rod 22, and since the vertical rod 21 is arranged at the bottom of the rotating plate 11, when the vertical rod 21 moves, the rotating plate 11 can be driven to rotate, thereby the angle of the rotating plate 11 can be switched, when the rotating plate 11 is in a horizontal state, the pneumatic clamping jaw 19 above the rotating plate 11 can exchange the tool module on the adjacent vertical machine tool, and when the rotating plate 11 is in a vertical state, the pneumatic clamping jaw 19 above the rotating plate 11 can exchange the tool module on the adjacent horizontal machine tool, compared with the prior art, the structure is more compact, and manual replacement is not required during shutdown, so that the tool module can be quickly exchanged.

[0057] The working principle of the present application is that first, the mechanical arm 5 places the blank in the chuck 6, and with the rotation switching of the work disc 2, the blanks on the multiple chucks 6 can be transported, and the same blank can be cut after passing through multiple different vertical lathes 3 and horizontal lathes 4, and the formed product is quickly formed, and the continuity and efficiency of production are higher.

[0058] When it is necessary to replace the workpiece for machining, the lifting part can adjust the height of the two pneumatic clamping jaws 19 to adapt to the different heights of the vertical lathe 3 and the horizontal lathe 4, when the servo motor 8 rotates clockwise, under the one-way transmission of the first one-way bearing 12, the mounting plate 9 on the support disc 14 can be rotated, thereby the two pneumatic clamping jaws 19 can be rotated and positioned, so that the two pneumatic clamping jaws 19 are rotated to the positions corresponding to the tool modules, facilitating the exchange of the tool modules, and under the action of the second one-way bearing 13, the driving gear 27 is not driven at this time, and under the action of the flat motor 17, the corresponding tool module can be quickly rotated and removed or installed.

[0059] Then, when the servo motor 8 rotates counterclockwise, the mounting plate 9 will not rotate, and at this time the drive gear 27 will also rotate counterclockwise, thereby driving the drive shaft 35 to rotate, when the drive shaft 35 rotates, it will drive the two drive sliding blocks 26 to reciprocate through the two reciprocating sliding groove segments 28 on the drive shaft 35, when the drive sliding block 26 reciprocates on the drive shaft 35, it can drive the sliding push block 24 to slide on the slide rail 23 through the hinged push rod 25, and the sliding push block 24 can continue to drive the vertical rod 21 to move through the connecting rod 22, and since the vertical rod 21 is arranged at the bottom of the rotating plate 11, when the vertical rod 21 moves, it can drive the rotating plate 11 to rotate, thereby switching the angle of the rotating plate 11, when the rotating plate 11 is horizontal, the pneumatic clamping jaw 19 above the rotating plate 11 can exchange the tool module on the adjacent vertical machine tool, and when the rotating plate 11 is vertical, the pneumatic clamping jaw 19 above the rotating plate 11 can exchange the tool module on the adjacent horizontal machine tool, compared with the prior art, the structure is more compact, and manual replacement is not required during shutdown, so that the tool module can be quickly exchanged.

[0060] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A multi-station numerically controlled machine tool with interchangeable modules, comprising a circular base (1) and a worktable (2) rotatably connected to the circular base (1), characterized in that, Also include a rotary switching assembly, the rotary switching assembly includes servo motor (8), circular guide rail (10) and support disc (14), the circular guide rail (10) is arranged at the bottom of the work disc (2), the support disc (14) is rotatably connected on the circular guide rail (10), the output shaft of the servo motor (8) is drivenly connected with the support disc (14) through the first one-way bearing (12); The module interchanging assembly includes a mounting plate (9), a lifting component, and a form switching component. The lifting component is arranged above the support disc (14). The mounting plate (9) is arranged on the top of the lifting component. Rotating plates (11) are rotatably connected to the two sides of the mounting plate (9). Flat motors (17) are arranged on each rotating plate (11). Turntables (18) are arranged on the top of each flat motor (17). The output shaft of the flat motor (17) is fixedly connected with the bottom center of the turntable (18). Multiple connecting columns (20) are arranged at intervals on the top of the turntable (18). Pneumatic clamping jaws (19) are arranged on the top of the multiple connecting columns (20). A control motor (7) is arranged inside the circular base (1). The output shaft of the control motor (7) is fixedly connected with the work disc (2). Multiple vertical lathes (3) are arranged at intervals around the work disc (2). Horizontal lathes (4) are arranged between adjacent vertical lathes (3). A mechanical arm (5) is arranged beside the work disc (2). Multiple chucks (6) are arranged on the top of the work disc (2). The lifting component includes two telescopic limiting columns (16). The two telescopic limiting columns (16) are arranged between the mounting plate (9) and the support disc (14). A pneumatic cylinder (15) is arranged on the top of the support disc (14). The output end of the pneumatic cylinder (15) is fixedly connected with the bottom of the mounting plate (9). A multiple-stage telescopic rod (36) is slidably connected to the output shaft of the servo motor (8). A second one-way bearing (13) is arranged on the outer wall of the multiple-stage telescopic rod (36). A drive gear (27) is sleeved on the second one-way bearing (13). The form switching component includes a one-way transmission member, a drive shaft (35), and a limiting rod (29). The drive shaft (35) is rotatably connected to the bottom of the mounting plate (9). The limiting rod (29) is rotatably connected beside the drive shaft (35). Reciprocating sliding groove sections (28) are formed at both ends of the drive shaft (35). Drive sliding blocks (26) are arranged on each reciprocating sliding groove section (28). Each drive sliding block (26) is in sliding cooperation with the limiting rod (29).

2. A multi-station numerically controlled machine tool having interchangeable modules according to claim 1, characterized in that, The one-way transmission part comprises a mounting frame (32) and a connecting shaft (34), the mounting frame (32) is fixedly connected with the movable ends of the upper portions of the two telescopic limiting columns (16), the connecting shaft (34) is rotatably connected on the mounting frame (32), a worm (31) is rotatably connected on the mounting frame (32), and the worm (31) is meshingly connected with the connecting shaft (34) through a pair of pinions (37).

3. A multi-station numerically controlled machine tool having interchangeable modules according to claim 2, characterized in that, The one-way transmission part further comprises a worm wheel (30) and a rotating gear (33), the rotating gear (33) is arranged at one end of the connecting shaft (34) away from the pinions (37), the worm wheel (30) is arranged at the middle portion of the drive shaft (35), the worm wheel (30) is in transmission connection with the worm (31), and the rotating gear (33) is in meshing connection with the drive gear (27).

4. A multi-station numerically controlled machine tool having interchangeable modules according to claim 3, characterized in that, The bottom of the mounting plate (9) is provided with slide rails (23) on both sides, each slide rail (23) is slidably connected with a sliding push block (24), each sliding push block (24) corresponds to a drive sliding block (26), and each sliding push block (24) is connected with the corresponding drive sliding block (26) through a hinged push rod (25).

5. A multi-station numerically controlled machine tool having interchangeable modules according to claim 4, characterized in that, One end of each hinged push rod (25) is hinged with the drive sliding block (26), and the other end of each hinged push rod (25) is hinged with the sliding push block (24).

6. A multi-station numerically controlled machine tool having interchangeable modules according to claim 4, characterized in that, The bottom of each rotating plate (11) is provided with a vertical rod (21), the bottom of each vertical rod (21) is rotatably connected with a connecting rod (22), each connecting rod (22) corresponds to a sliding push block (24), and one end of each connecting rod (22) away from the vertical rod (21) is hinged with the corresponding sliding push block (24).

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