Automatic tool changing device for five-axis numerical control machine tool machining

Abstract

The invention relates to the technical field of automatic tool changing for machine tool machining, in particular to an automatic tool changing device for five-axis numerical control machine tool machining, which comprises a mounting frame, a five-axis numerical control system is mounted on the mounting frame, a machining head is mounted at the working end of the five-axis numerical control system, and a sliding block is slidably mounted on any one of the left side and the right side of the vertical section of the mounting frame. A rotating device is fixedly installed at the front end of the sliding block, a sliding groove plate is fixedly installed at the working end of the rotating device, a horizontal moving assembly is arranged on the sliding groove plate, a rotating tool rest is arranged at the top end of the horizontal moving assembly, and a tool bit is placed on the edge of the rotating tool rest. Multi-directional flexible tool changing is combined with five-axis linkage, efficient integrated machining of a complex workpiece is achieved, the non-machining time is shortened, re-clamping is reduced, the service life of a tool is effectively prolonged, and the machining precision is improved through the rapid and accurate tool changing process, the tool temperature control and dust removal system and the automatic stop lever reset and tool positioning design.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic tool changing for machine tool machining, and particularly relates to an automatic tool changing device for five-axis CNC machine tool machining. Background Art

[0002] A five-axis CNC machine tool is an advanced machining equipment. By adding two rotating axes on the basis of the traditional three axes (X, Y, and Z axes for linear motion), it can machine workpieces in five degrees of freedom. The characteristic of five-axis linkage enables the tool to adjust any posture in space and can machine parts with complex curved surfaces such as aeroengine blades and steam turbine impellers. Since the tool can better adapt to the complex shape of the workpiece, the number of clamping times is reduced, and the positioning error caused by multiple clampings is reduced, thereby improving the machining accuracy.

[0003] During the use of the tool on a five-axis CNC machine tool, it needs to be replaced to meet different machining accuracy requirements. However, in the prior art, when replacing the tool on a five-axis CNC machine tool, either the tool is changed manually or the tool change operation is performed by an automated device. The method of changing the tool manually can minimize the damage to the tool during tool change, but its tool change speed is slow, affecting the machining efficiency. While the method of changing the tool by an automated device can improve the tool change speed, it is easy to damage the tool. In view of the disadvantages and advantages of the two, for this reason, we propose an automatic tool changing device for five-axis CNC machine tool machining. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned disadvantages existing in the prior art, and to propose an automatic tool changing device for five-axis CNC machine tool machining.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An automatic tool changing device for five-axis CNC machine tool machining, including an installation frame, on which a five-axis numerical control system is installed. The working end of the five-axis numerical control system is installed with a machining head. A sliding block is slidably installed on either the left or right side of the vertical section of the installation frame. The front end of the sliding block is fixedly installed with a rotating device. The working end of the rotating device is fixedly installed with a chute plate. A horizontal moving component is provided on the chute plate. The top of the horizontal moving component is provided with a rotating tool rest. Tool heads are placed at the edge of the rotating tool rest, and the rotating tool rest is driven by a driving component arranged on one side of the horizontal moving component;

[0007] A fine-adjustment assembly is provided at the center of the rotating tool holder, a rotatable tool-changing plate is provided at the working end of the fine-adjustment assembly, clamping assemblies are provided at both ends of the tool-changing plate, and the two sets of clamping assemblies are centrally symmetrically arranged, and the clamping assembly includes a grasping claw fixedly mounted on the end of the tool-changing plate and designed in an arc shape, a stop rod is provided on one side of the opening of the grasping claw, and the stop rod is slidably connected to the tool-changing plate through an elastic telescopic assembly;

[0008] A high-pressure gas injection assembly is provided inside the tool changing plate. Both ends of the high-pressure gas injection assembly are provided with injection ports. The injection port and the end of the blocking rod are located on the same horizontal line, and the inner diameter thereof is the same as the diameter of the blocking rod.

[0009] Preferably, the five-axis CNC system includes a material adjustment system and a processing end adjustment system. The material adjustment system includes a first axis system installed below the installation frame. The working end of the first axis system is provided with a working plate, and the material to be processed is placed on the working plate.

[0010] Preferably, the processing end adjustment system includes a second axis system installed in the middle position of the installation frame, the working end of the second axis system is provided with a first mounting frame, the first mounting frame is provided with a third axis system, the working end of the third axis system is provided with a second mounting frame, a fixed frame is detachably installed below the front end of the second mounting frame, a fourth axis system is installed on the fixed frame, the working end of the fourth axis system is vertically downward and fixedly connected to a rotating frame, a fifth axis system is installed above the rotating frame, the rotating frame is rotatably connected to the processing head at the bottom, and the working end of the fifth axis system is connected to the processing head through a transmission device.

[0011] Preferably, a sliding limit groove is provided on either left or right side of the vertical section of the installation frame, and one end of the sliding block close to the sliding limit groove is slidably connected thereto.

[0012] Preferably, the horizontal moving assembly includes a sliding plate slidably mounted on one side of the slide plate, and a third telescopic rod fixedly mounted on the other side of the slide plate, the telescopic end of the third telescopic rod faces one side of the sliding plate and is fixedly connected thereto, a mounting shell is fixedly connected to one side above the sliding plate, and the rotating tool holder is rotatably mounted on the top of the mounting shell.

[0013] Preferably, the driving assembly comprises a rotary motor fixedly mounted on one side below the sliding plate, and the lower end of the rotary tool holder is located inside the mounting shell and is transmission-connected to the output end of the rotary motor via a transmission device.

[0014] Preferably, the micro-adjustment assembly includes a fixed rod that rotatably penetrates the rotary tool holder. The bottom end of the fixed rod is fixedly connected to the mounting shell. The top end of the fixed rod is fixedly installed with a first telescopic rod. The telescopic end of the first telescopic rod faces the side of the processing head and is fixedly connected to a servo motor. The output end of the servo motor faces downward and is key-connected to a second telescopic rod. The telescopic end of the second telescopic rod is fixedly connected to the tool-changing plate.

[0015] Preferably, the elastic telescopic assembly includes first stoppers fixedly installed on the upper and lower surfaces of the blocking rod. Second stoppers corresponding to the positions of the first stoppers are fixedly installed on the upper and lower inner walls of the tool-changing plate. Springs are fixedly connected between the second stoppers and the first stoppers.

[0016] Preferably, the high-pressure gas injection assembly includes an air delivery pipe provided inside the middle section of the tool-changing plate. The jet ports are provided at both ends of the air delivery pipe. One side of the air delivery pipe is communicated with an air inlet pipe. The input end of the air inlet pipe is connected to an external compressed gas supply device.

[0017] Preferably, a dust-proof frame is sleeved outside the rotary tool holder. One side of the dust-proof frame is fixedly installed with a blow pipe communicated with its interior. The end of the blow pipe away from the dust-proof frame is connected to an external gas supply device.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] 1. In this application, the five-axis CNC machine tool can position the processing head at any angle in space with five degrees of freedom, realizing the all-round processing of complex workpieces, getting rid of the angle limitation of traditional three-axis machine tools, being able to complete continuous processing of multiple surfaces and multiple angles, reducing the number of commutation and shutdown times, improving the processing efficiency and the surface quality of the workpiece, and providing a solid foundation for the high-precision manufacturing of complex devices.

[0020] 2. In this application, the multi-directional flexible tool-changing device realizes the precise and rapid positioning of the tool-changing plate in the horizontal, vertical and rotational directions through the sliding block, the rotating device and three telescopic rods with different ranges. No matter what angle the processing head is at, the tool can be changed in place without moving the processing head to a fixed position and then changing the tool, avoiding secondary positioning and re-clamping of the workpiece, thus significantly shortening the tool-changing cycle, reducing the non-cutting time, increasing the effective processing time of the machine tool, and significantly improving the production rhythm and comprehensive production efficiency.

[0021] 3. With the coordinated control of the rotary tool rest and the servo motor, the tool-changing plate completes the swapping of the old and new tools in the horizontal plane, and under the alternating action of the air suction and jet systems, the quick reset of the shift lever and the positioning and fixing of the tool are achieved. The entire process requires no additional fixtures or manual intervention, with a high degree of automation. The multi-directional tool change not only reduces the cumulative error caused by repeated workpiece clamping but also enables complex workpieces to flexibly call multiple tools in the same machining program, further improving the machining accuracy and flexible manufacturing ability.

[0022] 4. During the tool-changing process of the present application, the compressed gas jets obliquely from the side of the jet orifice at high speed instead of straight out. Under the action of Bernoulli's principle, an adsorption effect on the shift lever is generated, reducing the force that the tool tip needs to overcome to push the shift lever backward, and at the same time reducing the force of the shift lever against the side of the tool tip when it enters halfway, avoiding damage to the side of the tool tip being forced in.

[0023] In summary, the multi-directional flexible tool change of the present application combined with five-axis linkage realizes the efficient integrated machining of complex workpieces. Its fast and accurate tool-changing process, tool temperature control and dust removal system, as well as the automatic shift lever reset and tool positioning design, not only shorten the non-machining time, reduce re-clamping, but also effectively extend the tool life and improve the machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an automatic tool-changing device for five-axis CNC machine tool machining proposed by the present invention.

[0025] Figure 2 It is a schematic diagram of the installation frame and working plate structure of an automatic tool-changing device for five-axis CNC machine tool machining proposed by the present invention.

[0026] Figure 3 It is a schematic diagram of the dust cover and air blowing pipe structure of an automatic tool-changing device for five-axis CNC machine tool machining proposed by the present invention.

[0027] Figure 4 It is a schematic diagram of the rotary tool rest and tool tip structure of an automatic tool-changing device for five-axis CNC machine tool machining proposed by the present invention.

[0028] Figure 5 It is a schematic diagram of the rotary motor and sliding plate structure of an automatic tool-changing device for five-axis CNC machine tool machining proposed by the present invention.

[0029] Figure 6 It is a schematic diagram of the fixed rod and the first telescopic rod structure of an automatic tool-changing device for five-axis CNC machine tool machining proposed by the present invention.

[0030] Figure 7 It is Figure 6 The enlarged view of the structure at A in

[0031] In the figure: 1 mounting frame, 2 first axis system, 3 working plate, 4 second axis system, 5 third axis system, 6 fourth axis system, 7 fifth axis system, 8 machining head, 9 first mounting bracket, 10 second mounting bracket, 11 slide bar, 12 fixing bracket, 13 dust-proof frame, 14 air blowing pipe, 15 fixing rod, 16 first telescopic rod, 17 servo motor, 18 second telescopic rod, 19 rotary tool holder, 20 tool bit, 21 rotary motor, 22 sliding plate, 23 third telescopic rod, 24 sliding block, 25 rotating device, 26 chute plate, 27 tool changing plate, 28 air inlet pipe, 29 gripping claw, 30 air jet port, 31 spring, 32 retaining rod, 33 first retaining block, 34 second retaining block. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] Refer to Figures 1 to 7 , an automatic tool changing device for five-axis CNC machine tool machining, including a mounting frame 1 placed on the ground or other platforms. A first axis system 2 is installed below the mounting frame 1. The working end of the first axis system 2 is provided with a working plate 3. The material to be machined is placed on the working plate 3. By setting the first axis system 2, the working plate 3 can be driven to move longitudinally in the horizontal plane. A second axis system 4 is installed at the middle position of the mounting frame 1. The working end of the second axis system 4 is provided with a first mounting bracket 9. By setting the second axis system 4, the first mounting bracket 9 can be driven to move horizontally left and right in the vertical plane. To ensure the stability of the first mounting bracket 9 during the movement, a slide bar 11 for guiding the first mounting bracket 9 is fixedly installed above the mounting frame 1.

[0034] A third axis system 5 is installed on the first mounting bracket 9. The working end of the third axis system 5 is provided with a second mounting bracket 10. By setting the third axis system 5, the second mounting bracket 10 can be driven to move up and down in the vertical plane. A fixing bracket 12 is detachably installed below the front end of the second mounting bracket 10. A fourth axis system 6 is installed on the fixing bracket 12. The working end of the fourth axis system 6 is vertically downward and fixedly connected with a rotating frame. A fifth axis system 7 is installed above the rotating frame. A machining head 8 is rotatably installed below the rotating frame. The working end of the fifth axis system 7 is connected with the machining head 8 through a transmission device. By setting the fourth axis system 6 and the fifth axis system 7, the machining head 8 can rotate while also rotating 90° clockwise and counterclockwise in the vertical plane.

[0035] A sliding limit groove is provided on either side of the left or right vertical section of the mounting frame 1, and a sliding block 24 is slidably installed inside the sliding limit groove, and a rotating device 25 is fixedly installed at the front end of the sliding block 24. The rotating device 25 is a prior art, and its specific structural design is no longer repeated here. A slide plate 26 is fixedly installed at the working end of the rotating device 25, and the slide plate 26 can be driven to rotate in a vertical plane by setting the rotating device 25. A sliding plate 22 is slidably installed on one side of the slide plate 26, and a third telescopic rod 23 is fixedly installed on the other side. The telescopic end of the third telescopic rod 23 faces one side of the sliding plate 22 and is fixedly connected to it. By setting the third telescopic rod 23, the sliding plate 22 can be pushed to reciprocate left and right on the slide plate 26. A mounting shell is fixedly connected to one side above the sliding plate 22, a rotating motor 21 is fixedly installed to one side below the sliding plate 22, a rotating tool holder 19 is rotatably installed on the top of the mounting shell, the lower end of the rotating tool holder 19 is located inside the mounting shell and is connected to the output end of the rotating motor 21 through a transmission device, so that the rotating motor 21 can drive the rotating tool holder 19 to rotate during operation. The rotating tool holder 19 is disc-shaped, and a plurality of clamping stations are evenly distributed on its edge, and a tool head 20 is placed on the inside of each clamping station.

[0036] A fixed rod 15 is rotatably connected to the center of the rotating tool holder 19, the bottom end of the fixed rod 15 is fixedly connected to the mounting shell, and a first telescopic rod 16 is fixedly installed on the top of the fixed rod 15. The telescopic end of the first telescopic rod 16 faces one side of the processing head 8 and is fixedly connected to a servo motor 17. The output end of the servo motor 17 faces downward and is key-connected to a second telescopic rod 18. The telescopic end of the second telescopic rod 18 is fixedly connected to a tool changing plate 27 arranged horizontally. Clamping assemblies are provided at both ends of the tool changing plate 27. Two sets of clamping assemblies The clamping assembly is arranged in a centrally symmetrical manner, and includes a grasping claw 29 fixedly installed at the end of the tool changing plate 27 and having an arc-shaped design. A stop rod 32 is provided on one side of the opening of the grasping claw 29. The stop rod 32 is slidably installed inside the tool changing plate 27, and a first stop block 33 is fixedly installed on the upper and lower surfaces of a section of the stop rod 32 located inside the tool changing plate 27. A second stop block 34 corresponding to the position of the first stop block 33 is fixedly installed on the upper and lower side walls inside the tool changing plate 27, and a spring 31 is fixedly connected between the second stop block 34 and the first stop block 33.

[0037] An air pipeline is provided inside the middle section of the tool changing plate 27, and jet ports 30 are provided at both ends of the air pipeline. An air intake pipe 28 is connected to one side of the air pipeline, and the input end of the air intake pipe 28 is connected to an external compressed gas supply device, so that the compressed gas is ejected from the jet port 30 at high speed through the air pipeline. The jet port 30 and the end of the baffle rod 32 are located on the same horizontal line, and the inner diameter of the jet port 30 is the same as the diameter of the baffle rod 32, so that the baffle rod 32 can be partially inserted into the jet port 30.

[0038] A dust-proof frame 13 is sleeved outside the rotary tool rest 19. One side of the dust-proof frame 13 is fixedly installed with a blow pipe 14 communicating with its interior. One end of the blow pipe 14 away from the dust-proof frame 13 is connected to an external gas supply device. The gas blown out from the blow pipe 14 can, on the one hand, reduce the temperature of the tool bit 20, and on the other hand, blow off the dust on the surface of the tool bit 20, preparing for the subsequent replacement of the tool bit 20.

[0039] When the present invention is working, the front and back movement of the working plate 3 is controlled by the first shaft system 2, the left and right movement of the first mounting frame 9 on the sliding rod 11 can be controlled by the second shaft system 4, the up and down movement of the second mounting frame 10 in the first mounting frame 9 can be controlled by the third shaft system 5, the fourth shaft system 6 can control the processing head 8 to rotate self, and the fifth shaft system 7 can control the processing head 8 to rotate ±90° in the vertical direction. Therefore, the processing of complex devices can be completed.

[0040] In order to cooperate with the complex working conditions of the processing head 8, the tool changing device also needs to quickly cooperate with the processing head 8 to change tools at different positions and in different directions, thereby improving the processing efficiency of complex devices.

[0041] The blow pipe 14 blows air into the dust-proof frame 13. Firstly, it can reduce the temperature of the tool bit 20, and secondly, it can blow off the dust on the surface of the tool bit 20, preparing for the subsequent replacement.

[0042] The sliding block 24 can move up and down on the right mounting frame 1 (corresponding sliding limit grooves are provided on the mounting frame 1). The rotating device 25 can rotate the entire tool changing device. The range of the first telescopic rod 16 is small, which can finely adjust the position of the tool changing plate 27 in the horizontal direction. The range of the second telescopic rod 18 is small, which can finely adjust the position of the tool changing plate 27 in the vertical direction. The range of the third telescopic rod 23 is large, which can push the sliding plate 22 to move a large horizontal displacement on the chute plate 26. Through the cooperation of these devices, the tool changing plate 27 can be moved to a suitable angle and position to change the tool for the processing head 8. In this way, even when the processing head 8 is in the position of ±90° rotation, the tool can be changed, and there is no need for the processing head 8 to move to a fixed place and then rotate back to the vertical angle to change the tool, avoiding problems that limit the processing efficiency or cause the workpiece to need to be reinstalled and waste time.

[0043] Multi-directional flexible tool changing can improve processing flexibility, reduce the number of times of workpiece repositioning, save time, and improve efficiency. Especially for complex workpieces, different-direction tools may need to be frequently changed during the same processing process. At this time, the advantage of multi-directional tool changing is obvious. In addition, reducing reinstallation can also improve processing accuracy because each clamping may introduce errors.

[0044] After the tool change plate 27 moves to a suitable position, start the rotary motor 21 to rotate the rotary tool holder 19, select the tool head 20, and then start the servo motor 17. Rotate the tool change plate 27 through the second telescopic rod 18. The tool head 20 removed by the processing head 8 and the replaced tool head 20 are on the same horizontal plane, and the tool change plate 27 is in the middle of the two.

[0045] During the rotation of the tool change plate 27, the tool head 20 first contacts the stop rod 32, and the stop rod 32 moves backward. The first stop block 33 contacts the spring 31. The first stop block 33 is fixedly connected to the stop rod 32. When the stop rod 32 moves backward, it compresses the spring 31. At the same time, the tail of the stop rod 32 is close to the air jet port 30, and the distance is very close. At this time, compressed gas is introduced into the air inlet pipe 28. The compressed gas will be ejected obliquely laterally from the air jet port 30 at a high speed instead of straight. Under the action of Bernoulli's principle, an adsorption effect on the stop rod 32 will be generated, reducing the force that the tool head 20 needs to overcome to push the stop rod 32 backward, and at the same time reducing the force of the stop rod 32 pushing against the side of the tool head 20 when it enters halfway, avoiding damage to the side of the tool head 20 being squeezed in hard.

[0046] After the tool head 20 enters the gripping claws 29, the stop rod 32 is reset forward under the action of the spring 31, and the stop rod 32 moves away from the air jet port 30. At this time, the compressed gas ejected from the air jet port 30 plays a role in assisting the stop rod 32 to quickly return to its original position, quickly fixing the tool head 20 in the gripping claws 29 and the stop rod 32, and spraying out into the space on both sides onto the tool head 20 for cooling and removing dust.

[0047] After being fixed, the second telescopic rod 18 moves downward to remove the tool head 20 from the rotary tool holder 19. The servo motor 17 rotates in the reverse direction again to place the new tool head 20 under the processing head 8, and the old tool head is under the rotary tool holder 19. Then start the second telescopic rod 18 to control the tool head 20 to move upward. The new tool head 20 is clamped into the processing head 8, and the old tool head is clamped into the rotary tool holder 19. At this time, the tool change is completed. Just rotate the tool change plate 27 to avoid affecting the operation of the processing head 8.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An automatic tool changing device for five-axis CNC machine tool processing, comprising a mounting frame (1), characterized in that: A five-axis numerical control system is installed on the installation frame (1), a processing head (8) is installed on the working end of the five-axis numerical control system, a sliding block (24) is slidably installed on either side of the left or right vertical section of the installation frame (1), a rotating device (25) is fixedly installed on the front end of the sliding block (24), a slide plate (26) is fixedly installed on the working end of the rotating device (25), a horizontal moving component is provided on the slide plate (26), a rotating tool holder (19) is provided at the top end of the horizontal moving component, a tool head (20) is placed at the edge of the rotating tool holder (19), and the rotating tool holder (19) is driven by a driving component arranged on one side of the horizontal moving component; A fine adjustment component is provided at the center of the rotating tool holder (19); a rotatable tool changing plate (27) is provided at the working end of the fine adjustment component; clamping components are provided at both ends of the tool changing plate (27); the two groups of clamping components are centrally symmetrically arranged; the clamping component comprises a gripping claw (29) fixedly mounted on the end of the tool changing plate (27) and having an arc-shaped design; a stop rod (32) is provided on one side of the opening of the gripping claw (29); the stop rod (32) is slidably connected to the tool changing plate (27) via an elastic telescopic component; A high-pressure gas injection assembly is provided inside the tool changing plate (27), and both ends of the high-pressure gas injection assembly are provided with injection ports (30). The injection port (30) and the end of the blocking rod (32) are located on the same horizontal line, and the inner diameter of the injection port (30) is the same as the diameter of the blocking rod (32).

2. The automatic tool changing device for five-axis CNC machine tool processing according to claim 1 is characterized in that: The five-axis CNC system comprises a material adjustment system and a processing end adjustment system. The material adjustment system comprises a first axis system (2) installed below a mounting frame (1). The working end of the first axis system (2) is provided with a working plate (3), and the material to be processed is placed on the working plate (3).

3. The automatic tool changing device for five-axis CNC machine tool processing according to claim 2 is characterized in that: The processing end adjustment system comprises a second axis system (4) installed at the middle position of the installation frame (1); a first mounting frame (9) is provided at the working end of the second axis system (4); a third axis system (5) is installed on the first mounting frame (9); a second mounting frame (10) is provided at the working end of the third axis system (5); a fixed frame (12) is detachably installed below the front end of the second mounting frame (10); a fourth axis system (6) is installed on the fixed frame (12); the working end of the fourth axis system (6) is vertically downward and fixedly connected to a rotating frame; a fifth axis system (7) is installed above the rotating frame; the rotating frame is rotatably connected to a processing head (8) at the bottom; and the working end of the fifth axis system (7) is connected to the processing head (8) through a transmission device.

4. The automatic tool changing device for five-axis CNC machine tool processing according to claim 1, characterized in that: A sliding limit groove is provided on either side of the vertical section of the installation frame (1), and one end of the sliding block (24) close to the sliding limit groove is slidably connected to the sliding limit groove.

5. The automatic tool changing device for five-axis CNC machine tool processing according to claim 1 is characterized in that: The horizontal moving assembly comprises a sliding plate (22) slidably mounted on one side of a slide plate (26), and a third telescopic rod (23) fixedly mounted on the other side of the slide plate (26), the telescopic end of the third telescopic rod (23) faces one side of the sliding plate (22) and is fixedly connected thereto, a mounting shell is fixedly connected to one side above the sliding plate (22), and the rotating tool holder (19) is rotatably mounted on the top of the mounting shell.

6. The automatic tool changing device for five-axis CNC machine tool processing according to claim 5, characterized in that: The driving assembly comprises a rotating motor (21) fixedly mounted on one side below the sliding plate (22); the lower end of the rotating tool holder (19) is located inside the mounting shell and is transmission-connected to the output end of the rotating motor (21) via a transmission device.

7. The automatic tool changing device for five-axis CNC machine tool processing according to claim 5, characterized in that: The fine adjustment assembly comprises a fixed rod (15) which rotates and passes through a rotating tool holder (19); the bottom end of the fixed rod (15) is fixedly connected to a mounting shell; the top end of the fixed rod (15) is fixedly installed with a first telescopic rod (16); the telescopic end of the first telescopic rod (16) faces one side of the processing head (8) and is fixedly connected to a servo motor (17); the output end of the servo motor (17) faces downward and is key-connected to a second telescopic rod (18); the telescopic end of the second telescopic rod (18) is fixedly connected to a tool changing plate (27).

8. The automatic tool changing device for five-axis CNC machine tool processing according to claim 1, characterized in that: The elastic telescopic component comprises a first stopper (33) fixedly mounted on the upper and lower surfaces of the stopper rod (32); the upper and lower side walls inside the tool changing plate (27) are both fixedly mounted with second stops (34) corresponding to the position of the first stopper (33); and a spring (31) is fixedly connected between the second stopper (34) and the first stopper (33).

9. The automatic tool changing device for five-axis CNC machine tool processing according to claim 8, characterized in that: The high-pressure gas injection assembly comprises a gas pipeline arranged inside the middle section of the tool changing plate (27), the injection ports (30) are arranged at both ends of the gas pipeline, one side of the gas pipeline is connected to an air intake pipe (28), and the input end of the air intake pipe (28) is connected to an external compressed gas supply device.

10. The automatic tool changing device for five-axis CNC machine tool processing according to claim 1, characterized in that: The outer side of the rotating tool holder (19) is sleeved with a dustproof frame (13), and a blow pipe (14) communicating with the interior of the dustproof frame (13) is fixedly installed on one side of the dustproof frame (13), and one end of the blow pipe (14) away from the dustproof frame (13) is connected to an external gas supply device.

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