A multi-functional numerical control machine tool

Abstract

This invention relates to the field of multifunctional metal processing equipment, and more particularly to a multifunctional CNC machine tool, comprising a crossbeam mounted on a CNC machine tool gantry. A guide rail and a lead screw are mounted on one side of the crossbeam, and the lead screw is connected to a ball nut. A shifting mechanism is provided at one end of the crossbeam. The shifting mechanism includes a tilting cage, which is rectangular in shape. This multifunctional CNC machine tool utilizes the flexibility of the crossbeam casting design. By adding a CNC rotating shifting mechanism to the end of a conventional crossbeam, it can flexibly switch between different processing execution units to perform different forms of processing on thin sheet metal parts. The docking component, combined with the lead screw in a traditional gantry drive system, not only allows for flexible and convenient control of the slide table moving between the crossbeam and the shifting mechanism, but also provides stable support for the lead screw.

Description

Technical Field

[0001] This invention relates to the field of multifunctional combined metal processing equipment, and in particular to a multifunctional CNC machine tool. Background Technology

[0002] Lightweight gantry CNC engraving machines are typically suitable for processing thin metal sheets. The most common processing methods are milling and stamping, but these are two completely different processing methods. Milling and cutting are performed by a spindle motor driving a milling cutter to rotate at high speed to mill the thin metal sheet, while stamping is generally completed by a cylinder or hydraulic cylinder. Therefore, when sheet metal products require both milling and stamping, a single CNC machine tool is insufficient to complete different metal processing methods, requiring two machines: a CNC engraving machine and a stamping machine. The process of switching sheet metal parts between the two machines not only involves repeated assembly and large positioning errors, but is also obviously cumbersome to operate, which is not conducive to increasing factory production capacity. Therefore, in order to solve the above problems, a multi-functional CNC machine tool has been proposed. Summary of the Invention

[0003] In view of the problem that a single CNC machine tool cannot complete different metal processing methods in the above or existing technologies, the present invention is proposed.

[0004] Therefore, the purpose of this invention is to provide a multifunctional CNC machine tool.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a multi-functional CNC machine tool, comprising a crossbeam mounted on the gantry of the CNC machine tool, a guide rail and a lead screw mounted on one side of the crossbeam, the lead screw being connected to a ball nut, and a shifting mechanism being provided at one end of the crossbeam; the shifting mechanism includes a tilting cage, the tilting cage being rectangular in shape, one end of the tilting cage being rotatably connected to the end face of the crossbeam, and the horizontal central axes of the tilting cage and the crossbeam being coaxial with the rotation axis of the tilting cage, and guide rails are fixed to the upper and lower edges on both sides of the tilting cage. Furthermore, both sides of the tilting cage are slidably connected to slide tables via guide rail two, and both sides of the tilting cage are provided with docking assemblies; the docking assembly includes a cylinder fixedly connected to the side wall of the tilting cage, the output shaft of the cylinder is fixedly connected to a sleeve one, a sleeve two is inserted into the end of the sleeve one, an annular electromagnet is fixedly sleeved on the outside of the end of the sleeve one, and a spring one is provided inside the sleeve one between the cylinder and the sleeve one, and a spring two is sleeved between the inner wall of the end of the electromagnet away from the cylinder and the outer wall of the sleeve one, and the sleeve two is coaxial with the lead screw.

[0006] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: a first motor is built in the cross beam, and a speed reducer is assembled at the output shaft end of the first motor. The housing of the speed reducer is fixedly connected to the cross beam. The turning cage is provided with a hollow structure, and an X-shaped support beam is arranged inside the turning cage. A short shaft is fixedly inserted at the middle intersection position of the support beam, and the short shaft is coaxially connected to the output shaft of the speed reducer.

[0007] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: the outer diameter of the second sleeve is matched and inserted into the inner hole of the ball nut. A cylindrical head is machined at one end of the screw rod located in the second sleeve, and the inner diameter of the second sleeve is matched and inserted with the head.

[0008] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: each sliding table is equipped with a ball nut, and the outer wall of the ball nut is fixedly connected to the sliding table through a nut seat.

[0009] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: the sliding table is provided with a cross-shaped groove on the side close to the turning cage, and positioning sleeves are inserted through the four short-sided grooves on both sides of the cross shape of the groove. Each positioning sleeve is inserted with a pin along its radial direction.

[0010] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: the pin is slidably connected to the groove in a matching manner, and a third spring is pre-pressed between two adjacent pins.

[0011] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: a transfer plate is disposed in a fitting manner on the side of the sliding table away from the turning cage, and each positioning sleeve is inserted with a positioning pin in a matching manner. The positioning pins are perpendicularly and fixedly connected to the transfer plate, and the adjacent positioning pins and pins are inserted in a matching manner.

[0012] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: the sliding table covers the groove and is sealed with a cross-shaped cover plate, and the cover plate is fitted with the sliding table.

[0013] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: an air joint is arranged at the edge of the sliding table, and the air joint is communicated with the top of the cross shape of the groove.

[0014] As a preferred embodiment of the multi-functional numerical control machine tool of the present invention, wherein: a spindle motor and a stamping cylinder are respectively vertically and fixedly assembled on the two sliding tables through the transfer plates thereon. The two sliding tables are slidably matched with the first guide rail. A second motor is arranged at one end of the cross beam away from the transposition mechanism and is coaxially connected to the screw rod.

[0015] The beneficial effects of the multifunctional CNC machine tool of the present invention: The multifunctional CNC machine tool of the present invention utilizes the flexibility of the crossbeam casting design. By adding a CNC rotating shifting mechanism to the end of the conventional crossbeam, it can flexibly switch different processing execution units to perform different forms of processing on thin sheet metal parts. The docking component is combined with the lead screw in the traditional gantry drive system, which not only allows for flexible and convenient control of the slide table to move between the crossbeam and the shifting mechanism, but also provides stability support for the lead screw. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a multi-functional CNC machine tool.

[0018] Figure 2 This is a structural schematic diagram of the crossbeam of a multi-functional CNC machine tool from the rear view.

[0019] Figure 3 This is a schematic diagram showing the partial structural breakdown of the switching mechanism of a multi-functional CNC machine tool.

[0020] Figure 4 This is a schematic diagram of the docking components and the tilting cage assembly structure of a multi-functional CNC machine tool.

[0021] Figure 5 This is a sectional view of the docking components.

[0022] Figure 6 This is a cross-sectional view of the structure after the docking assembly is connected to the lead screw.

[0023] Figure 7 This is a schematic diagram of the slide structure of a multi-functional CNC machine tool.

[0024] Figure 8 This is an exploded view of the slide structure of a multi-functional CNC machine tool.

[0025] Figure 9 This is a sectional view of the slide structure of a multi-functional CNC machine tool.

[0026] In the diagram: 100, crossbeam; 101, guide rail one; 102, lead screw; 103, ball nut; 104, main shaft; 105, stamping cylinder; 106, motor two; 102a, column head; 200, shifting mechanism; 201, tilting cage; 202, guide rail two; 203, slide table; 204, motor one; 205, reducer; 206, support beam; 207, short shaft; 208, adapter plate; 203a, groove; 203b, positioning sleeve; 203c, pin; 203d, spring three; 203e, cover plate; 203f, air connector; 208a, positioning pin; 300, docking assembly; 301, cylinder; 302, sleeve one; 303, sleeve two; 304, electromagnet; 305, spring one; 306, spring two. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Example 1, referring to Figures 1-7 This is the first embodiment of the present invention, which provides a multi-functional CNC machine tool capable of performing both milling and stamping metal processing on a single gantry CNC machine tool, such as... Figure 1 As shown, it includes a crossbeam 100 mounted on the gantry of a CNC machine tool. One side of the crossbeam 100 is fitted with a guide rail 101 and a lead screw 102. Figure 4 As shown, the lead screw 102 is connected to a ball nut 103, and a shifting mechanism 200 is provided at one end of the crossbeam 100; as Figure 3 As shown, the switching mechanism 200 includes a tilting cage 201, which is rectangular in shape. One end of the tilting cage 201 is rotatably connected to the end face of the crossbeam 100. The horizontal central axes of the tilting cage 201 and the crossbeam 100 are coaxial with the rotation axis of the tilting cage 201. Guide rails 202 are fixed to the upper and lower edges of both sides of the tilting cage 201, and slide tables 203 are slidably connected to both sides of the tilting cage 201 through the guide rails 202. A docking assembly 300 is provided on both sides of the tilting cage 201. Figure 4 and Figure 5 As shown, the docking assembly 300 includes a cylinder 301 fixedly connected to the side wall of the tilting cage 201. The output shaft of the cylinder 301 is fixedly connected to a sleeve 302. A sleeve 303 is inserted into the end of the sleeve 302. An annular electromagnet 304 is fixedly sleeved on the outside of the end of the sleeve 302. A spring 305 is provided inside the sleeve 302 between the cylinder 301 and the sleeve 302. A spring 306 is sleeved between the inner wall of the end of the electromagnet 304 away from the cylinder 301 and the outer wall of the sleeve 302. The sleeve 303 is coaxial with the lead screw 102.

[0029] Specifically, such as Figure 2As shown, a motor 204 is built into the crossbeam 100, and a reducer 205 is mounted on the output shaft end of the motor 204. The housing of the reducer 205 is fixedly connected to the crossbeam 100, as shown. Figure 3 As shown, the tilting cage 201 is hollowed out, and an X-shaped support beam 206 is provided inside the tilting cage 201. A short shaft 207 is fixedly inserted at the middle intersection position of the support beam 206. The short shaft 207 is coaxially connected to the output shaft of the reducer 205. Figure 6 As shown, the outer diameter of sleeve 303 matches the inner diameter of ball nut 103 for insertion. A cylindrical head 102a is machined at one end of sleeve 303, and the inner diameter of sleeve 303 matches the head 102a for insertion. Figure 7 As shown, each slide 203 is equipped with a ball nut 103, and the outer wall of the ball nut 103 is fixedly connected to the slide 203 through a nut seat.

[0030] like Figure 1 As shown, two slides 203 are vertically fixed with a main spindle 104 motor and a stamping cylinder 105 respectively via an adapter plate 208. Both slides 203 and guide rail 101 are slidably matched. A motor 2 106 is provided at the end of the crossbeam 100 away from the shifting mechanism 200 and is coaxially connected to the lead screw 102.

[0031] This invention provides a multifunctional CNC machine tool. To achieve both milling and stamping of thin sheet metal parts, a switching mechanism 200 is provided on the basis of a conventional CNC gantry machine tool. This mechanism allows for the rotational switching of machining execution units (e.g., milling spindle 104 and stamping cylinder 105). A docking assembly 300 is also provided to connect the machining execution unit with the traditional gantry drive system (guide rail 101, lead screw 102, ball nut 103, etc.) during the switching process. When a switching of machining mode is required, the traditional gantry drive system moves the slide 203 and the machining execution unit close to the switching mechanism 200. The docking assembly 300 takes over the slide 203 and pulls it into the switching mechanism 200. The switching mechanism 200 rotates to switch to the target machining execution unit, and then the docking assembly 300 pushes the target machining execution unit into the traditional gantry drive system.

[0032] To achieve the above-mentioned objectives, the present invention also relates to the following technical details:

[0033] Firstly, it should be noted that the shifting mechanism 200 is installed at the end of the conventional crossbeam 100. Therefore, during machining, the working range of the slide table 203 is limited to the area of ​​guide rail 101. The shifting mechanism 200 and guide rail 202 are located outside the machine tool machining platform and are only used to switch between different machining execution units, not to bear the load during machining. Motor 104 should be a stepper motor (stepper motors are less expensive than servo motors and have higher static torque), and motor 206 can be either a stepper motor or a servo motor.

[0034] The switching mechanism 200 adopts a hollow cast aluminum tilting cage 201. Its cubic peripheral wall and X-shaped support beam 206 give it four evenly distributed triangular structures, which makes the tilting cage 201 lightweight and has sufficient structural strength. The connection between the X-shaped support beam 206 and the four edges of the cubic peripheral wall makes the four edges of the tilting cage 201 thickened, which is used to open holes for mounting the guide rail 202 with greater force.

[0035] The 100mm crossbeam of the gantry is generally made of cast iron, such as... Figure 2 As shown, utilizing this feature, by pre-setting a motor mounting position inside one end of the crossbeam 100 and installing the motor 204 and reducer 205, the crossbeam 100 and the tilting cage 201 can be assembled. The reducer 205 amplifies the torque of the motor 204 to drive the tilting cage 201 to rotate, while ensuring that the static torque of the motor 204 is sufficient to provide adequate resistance to external interference when the tilting cage 201 is stationary. Therefore, no additional locking structure is required, simplifying the equipment structure. Figure 3 As shown, the reducer 205 can replace the output shaft of the motor 204 to connect to the relatively thicker short shaft 207, thereby ensuring the structural rigidity (referring to the bending rigidity of the rotating shaft) between the tilting cage 201 and the crossbeam 100.

[0036] Secondly, conventional gantry CNC equipment typically uses a lead screw 102 guide rail structure for its drive mechanism. High-precision lead screws 102 and guide rails (C5 standard or higher, C3 standard) are very expensive, accounting for a significant portion of the overall hardware cost of the CNC machine tool. Therefore, this invention does not simply use a set of lead screw 102 guide rails on both sides of the crossbeam 100 to achieve two metal processing modes. Instead, it uses a flip cage 201 to flip and switch between different processing execution units to achieve different processing modes. The switching mechanism 200 is simple and compact, significantly reducing hardware costs. However, its technical challenges lie in: firstly, the lead screw 102... The BF end (the end furthest from the motor 106) requires a special support to help stabilize the rotation of the end of the lead screw 102. However, using the BF support will prevent the slide table 203 from moving between the crossbeam 100 and the shifting mechanism 200. Secondly, there are three main problems with the ball nut 103 on the slide table 203 after it is disengaged from the lead screw 102: how to move the slide table 203 to the target position of the tilting cage 201 after losing the drive of the lead screw 102; how to prevent the steel column inside the ball nut 103 from falling off after losing the holding function of the lead screw 102; and how the internal steel ball of the ball nut 103 connects with the spiral groove of the lead screw 102 when the ball nut 103 is repeatedly assembled with the lead screw 102.

[0037] refer to Figure 4 The lead screw 102 first drives the ball nut 103 to move to the BF end of the lead screw 102. At this time, the nut has not yet disengaged from the lead screw 102, and the balls inside the nut are supported by the lead screw 102. In this invention, the cylinder 301 on the side wall of the flipping cage 201 pushes the sleeve 1 302 towards the lead screw 102. The sleeve 2 303 inserted at the end of the sleeve 1 302 will engage with the post head 102a at the end of the lead screw 102. After the sleeve 2 303 abuts against the end of the lead screw 102, the sleeve 1 302 compresses the spring 1 305 and continues to move towards the lead screw 102 until the working surface of the electromagnet 304 is in contact with the ball nut 1. 03 (while compressing spring 2 306), at this time the lead screw 102 continues to rotate and pushes the ball nut 103 towards the cylinder 301. The cylinder 301 is depressurized and the electromagnet 304 is energized to attract the ball nut 103. The ball nut 103 adheres to the electromagnet 304 and enters the range of the sleeve 2 303 and disengages from the lead screw 102. At this time, the balls inside the ball nut 103 are supported by the sleeve 2 303 to prevent them from falling off. The cylinder 301 returns to the zero position, and the ball nut 103 and the slide table 203 enter the switching mechanism 200. At this time, the rotating cage 201 can be rotated to switch the processing execution unit.

[0038] When the ball nut 103 moves from the shifting mechanism 200 onto the crossbeam 100, the lead screw 102 needs to rotate at low speed to actively engage the ball nut 103. Additionally, the pressure build-up in the cylinder 301 needs to be gradual to avoid structural impact. Figure 6As shown, it is also necessary to first connect the sleeve 303 to the post 102a at the end of the lead screw 102, and then gradually reduce the voltage supply of the electromagnet 304 so that the magnetic attraction of the electromagnet 304 to the ball nut 103 gradually decreases, thereby making the release speed of the spring 306 controllable, so that the ball nut 103 engages with the lead screw 102 at a moving speed that matches the rotation speed of the lead screw 102, thereby allowing the lead screw 102 to be smoothly screwed into the ball nut 103;

[0039] Once the ball nut 103 is fully inserted into the lead screw 102, the ball nut 103, the slide 203 mounted on it, and the processing unit mounted on the slide 203 can be used normally. At this time, the cylinder 301 does not need to retract and needs to maintain pressure build-up. Since the conventional BF support seat is eliminated at the BF end of the lead screw 102 in this invention, the second sleeve 303, the first sleeve 302, and the cylinder 301 at this time play a stabilizing role for the BF end of the lead screw 102, equivalent to a support seat.

[0040] In summary, the multifunctional CNC machine tool of the present invention utilizes the flexibility of the casting design of the crossbeam 100. By adding a CNC rotating shifting mechanism 200 to the end of the conventional crossbeam 100, it can flexibly switch different processing execution units to perform different forms of processing on thin sheet metal parts. The docking component 300 is combined with the lead screw 102 in the traditional gantry drive system, which not only allows for flexible and convenient control of the slide table 203 to move between the crossbeam 100 and the shifting mechanism 200, but also provides stability support for the lead screw 102.

[0041] Example 2, Reference Figures 7-8 This is the second embodiment of the present invention. This embodiment provides a slide table 203 and an adapter plate 208 for a multi-functional CNC machine tool. By using more adapter plates 208 to assemble different machining execution units, the functionality of the machine tool can be expanded through quick assembly and disassembly between the slide table 203 and the adapter plate 208. The slide table 203 has a T-shaped groove 203a on the side of the slide table 203 near the tilting cage 201, and the slide table 203 has four short side grooves on both sides of the T-shaped groove 203a that penetrate through it. A positioning sleeve 203b is fitted, and each positioning sleeve 203b has a pin 203c inserted radially therein. The pin 203c is slidably connected to the groove 203a. A spring 203d is pre-compressed between two adjacent pins 203c. A slide table 203 covers the groove 203a and is sealed with a T-shaped cover plate 203e, which is fitted into the slide table 203. An air connector 203f is provided on the edge of the slide table 203, and the air connector 203f is connected to the top of the T-shaped groove 203a. Figure 8As shown, a transition plate 208 is attached to the side of the slide table 203 away from the tilting cage 201, and each positioning sleeve 203b is matched with a positioning pin 208a. The positioning pins 208a are all vertically fixedly connected to the transition plate 208, and adjacent positioning pins 208a and pins 203c are matched and inserted.

[0042] by Figure 9 Taking the perspective as an example, by machining a groove 203a on the side wall of the slide table 203 and sealing and installing a cover plate 203e, an air passage is established on the inner wall of the slide table 203, which also serves as a sliding guide for the pin 203c. A threaded hole is machined on the top of the slide table 203 to connect with the groove 203a and an air connector 203f is installed. By drawing negative pressure through the air connector 203f, the two pins 203c on the same axis are controlled to move towards each other, and are pulled out from the positioning sleeve 203b and the positioning pin 208a, thus unlocking the adapter plate 208 from the slide table 203. If the negative pressure is disconnected, the pin 203c is pushed into the positioning sleeve 203b and the positioning pin 208a under the reset of the spring 203d, which normally locks the slide table 203 and the adapter plate 208.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-functional CNC machine tool, characterized in that: It includes a crossbeam (100) arranged on the gantry of a numerically controlled machine tool. One side of the crossbeam (100) is equipped with a first guide rail (101) and a lead screw (102). The lead screw (102) is connected to a ball nut (103). One end of the crossbeam (100) is provided with a换位机构 (200); The换位机构 (200) includes a flipping cage (201). The outer shape of the flipping cage (201) is a cuboid. One end of the flipping cage (201) is rotatably connected to the end face of the crossbeam (100) in a fitting manner. And the horizontal central axes of the flipping cage (201) and the crossbeam (100) are coaxial with the rotating shaft of the flipping cage (201). Guide rails two (202) are fixed to the upper and lower edges on both sides of the flipping cage (201). And slide tables (203) are slidably connected to both sides of the flipping cage (201) through the guide rails two (202). Docking assemblies (300) are arranged on both sides of the flipping cage (201); The docking assembly (300) includes a cylinder (301) fixedly connected to the side wall of the flipping cage (201). The output shaft of the cylinder (301) is fixedly connected to a first sleeve (302). A second sleeve (303) is inserted into the end of the first sleeve (302). An annular electromagnet (304) is fixedly sleeved outside the end of the first sleeve (302). And a first spring (305) is arranged between the cylinder (301) and the first sleeve (302) inside the first sleeve (302). A second spring (306) is sleeved between the inner wall of the end of the electromagnet (304) away from the cylinder (301) and the outer wall of the first sleeve (302). The second sleeve (303) is coaxial with the lead screw (102).

2. The multi-functional CNC machine tool as described in claim 1, characterized in that: A first motor (204) is arranged inside the crossbeam (100). And a reducer (205) is assembled at the output shaft end of the first motor (204). The housing of the reducer (205) is fixedly connected to the crossbeam (100). The flipping cage (201) is arranged in a hollow manner. And an X-shaped support beam (206) is arranged inside the flipping cage (201). A short shaft (207) is fixedly inserted at the middle intersection position of the support beam (206). The short shaft (207) is coaxial with the output shaft of the reducer (205).

3. The multi-functional CNC machine tool as described in claim 2, characterized in that: The outer diameter dimension of the second sleeve (303) is matched and inserted with the inner hole of the ball nut (103). A cylindrical head (102a) is machined at one end of the lead screw (102) located in the second sleeve (303). And the inner diameter dimension of the second sleeve (303) is matched and inserted with the head (102a).

4. The multi-functional CNC machine tool as described in claim 3, characterized in that: Each slide table (203) is equipped with a ball nut (103). And the outer wall of the ball nut (103) is fixedly connected to the slide table (203) through a nut seat.

5. The multi-functional CNC machine tool as described in claim 4, characterized in that: A T-shaped groove (203a) is opened on the side of the slide table (203) close to the flipping cage (201). And positioning sleeves (203b) are inserted through the four short sides of the T-shaped sides of the T-shaped groove (203a) of the slide table (203). And a pin (203c) is inserted along the radial direction of each positioning sleeve (203b). It should be noted that the term "换位机构" in the original text is not clear. It is tentatively translated as "docking mechanism" here, but it may need to be adjusted according to the actual meaning.

6. The multi-functional CNC machine tool as described in claim 5, characterized in that: The bolt (203c) is slidably connected in a matching manner with the groove (203a), and a third spring (203d) is pre-pressed between two adjacent bolts (203c).

7. The multi-functional CNC machine tool as described in claim 6, characterized in that: A transfer plate (208) is disposed in a fitting manner on one side of the sliding table (203) away from the flipping cage (201), and a positioning pin (208a) is inserted into each positioning sleeve (203b) in a matching manner. The positioning pins (208a) are vertically and fixedly connected to the transfer plate (208), and the adjacent positioning pins (208a) and bolts (203c) are inserted into each other in a matching manner.

8. The multi-functional CNC machine tool as described in claim 7, characterized in that: The sliding table (203) covers the groove (203a) and is hermetically provided with a cross-shaped cover plate (203e), and the cover plate (203e) is fitted with the sliding table (203).

9. The multi-functional CNC machine tool as described in claim 8, characterized in that: An air joint (203f) is provided at the edge of the sliding table (203), and the air joint (203f) is communicated with the cross-shaped top end of the groove (203a).

10. The multi-functional CNC machine tool as described in claim 1, characterized in that: Two sliding tables (203) are respectively and vertically fixedly equipped with a main shaft (104) motor and a stamping cylinder (105) through the transfer plates (208) thereon, and the two sliding tables (203) are in sliding contact with the first guide rail (101) in a matching manner. A second motor (1) is provided at one end of the cross beam (100) away from the transposition mechanism (200), and the second motor (106) is coaxially connected with a lead screw (102).

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