Five-axis machining center

Abstract

The invention discloses a five-axis machining center, and belongs to the field of numerical control machine tools. A five-axis machining center comprises a lathe bed, a lifting seat, a connecting rotating seat and a cutter rotating seat. And the included angle between the rotating shaft of the cutter rotating seat and the rotating shaft of the connecting rotating seat is 45 degrees. The cutter rotating seat is rotationally connected with a main shaft; the main shaft is detachably connected with a cutter; a tool changing mechanism is installed on the upper portion of the lathe bed. The tool changing mechanism comprises a rotating disc arranged in a rotating mode and a driving gear arranged in a rotating mode and connected with the rotating disc in a one-way transmission mode. And a plurality of spare cutters are uniformly mounted on the turntable in the circumferential direction. A driving frame capable of being in transmission with the driving gear is connected to the lifting seat in a sliding manner; a rack is arranged on the driving frame; and when the connecting rotating seat and the cutter rotating seat move until the cutter is vertically upward, the rack is meshed with the driving frame. The turntable can be driven to rotate without an additional power element, so that the cutter is convenient to replace.

Description

Technical Field

[0001] The invention belongs to the field of numerically controlled machine tools, and more specifically, relates to a five-axis machining center. Background Art

[0002] The five-axis machining center is a high-tech, high-precision machining center specifically used for machining complex surfaces. This machining center system has a significant influence on a country's aviation, aerospace, military, scientific research, precision machinery, high-precision medical equipment and other industries.

[0003] The five-axis machining center is equipped with an automatic tool changer, a tool changer and an automatic pallet exchanger. These devices are designed to complete the processing requirements of different parts of the same workpiece as much as possible after one installation, and to reduce the non-fault downtime of the CNC machine tool machining center as much as possible, so as to shorten the product manufacturing cycle and improve the product processing accuracy.

[0004] However, the existing tool changing device requires multiple motors to work in coordination to change the tool, which takes up more space and increases costs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a five-axis machining center, which can realize a tool changing mechanism using fewer electrical components and save costs.

[0006] A five-axis machining center of the present invention comprises a bed, a lifting seat longitudinally slidably connected to the bed, a connecting swivel seat rotatably connected to the front end of the lifting seat, and a tool swivel seat rotatably connected to the connecting swivel seat; the angle between the rotating axis of the tool swivel seat and the rotating axis of the connecting swivel seat is 45°.

[0007] The tool swivel seat is rotatably connected to a spindle; the spindle is detachably connected to a tool; a tool changing mechanism is installed on the upper part of the bed; the tool changing mechanism includes a rotatably arranged turntable and a rotatably arranged drive gear connected to the turntable in one-way transmission; a plurality of spare tools are evenly installed circumferentially on the turntable.

[0008] The lifting seat is slidably connected with a driving frame capable of transmitting with a driving gear; a rack is arranged on the driving frame; when the connecting rotating seat and the tool rotating seat move until the tool is vertically upward, the rack is meshed with the driving frame.

[0009] As a further improvement of the present invention, a push rod capable of pushing the driving frame to move is axially slidably connected to the connecting swivel seat; and a push frame capable of resisting the push rod and thereby driving the push rod to move is provided on the tool swivel seat.

[0010] As a further improvement of the present invention, a push plate is slidably connected on the connecting swivel seat between the push rod and the lifting seat; a spring is installed between the end of the push rod close to the connecting seat and the push plate.

[0011] As a further improvement of the present invention, a turntable gear is coaxially arranged at the lower end of the turntable; an end face gear meshing with the turntable gear is rotatably connected to the bed; the end face gear is coaxially arranged with the driving gear, and a ratchet mechanism is installed between the end face gear and the driving gear.

[0012] As a further improvement of the present invention, the spindle includes a rotating shaft rotatably connected to the tool swivel seat, and a lifting frame axially slidably connected to the rotating shaft and rotating synchronously with the rotating shaft in the circumferential direction; the tool is provided with a tool clamping groove that can abut against the end face of the lifting frame.

[0013] As a further improvement of the present invention, a connecting frame for driving the lifting frame to move is slidably connected inside the tool swivel; a synchronous belt distributed axially along the rotating shaft is installed inside the tool swivel; the connecting frame is fixedly connected to one side of the surface of the synchronous belt; a pressure rod extending to the outside of the tool swivel is provided on the other side of the surface of the synchronous belt; a lower pressure frame for preventing the pressure rod from moving is installed on the upper part of the bed; the movement directions of the pressure rod and the connecting frame are opposite.

[0014] As a further improvement of the present invention, the side wall of the tool is provided with a positioning magnet; and the rotating shaft is provided with an electromagnet capable of being tightly attracted to the positioning magnet.

[0015] As a further improvement of the present invention, a tool changing groove is provided on the outer wall of the tool; a push-pull frame is slidably connected to the bed above the turntable along the radial direction of the turntable; and two symmetrically arranged clamping rods that can be engaged with the tool changing groove are rotatably connected to the push-pull frame.

[0016] As a further improvement of the present invention, the clamping rod is provided with a first abutment head on the side of the clamping rod's rotating shaft close to the center of the turntable; the clamping rod is provided with a second abutment head on the side of the clamping rod's rotating shaft away from the center of the turntable.

[0017] The first abutting head and the second abutting head can both abut against the outer wall of the tool to push the tool to move.

[0018] As a further improvement of the present invention, a positioning frame is fixedly connected to the bed; a push rod for driving the push-pull frame to move is fixedly connected to the positioning frame; two inclined and symmetrically arranged guide rods are arranged at the upper end of the positioning frame; the guide rods can contact the first abutment heads, thereby bringing the two first abutment heads closer to each other.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: a feature of the five-axis machining center is that the direction of the tool is changed by rotating the connecting swivel and the tool swivel, so that the tool can process surfaces of parts at different angles, and can be used for more complex part models. At the same time, the present solution also utilizes the rotation of the connecting swivel and the tool swivel again, so that when the tool is rotated to vertically upward, the rotation of the connecting swivel and the tool swivel can move the drive frame, thereby driving the turntable to rotate, so that the turntable drives the tool with the corresponding number to move to the specified position, which is convenient for tool changing, reduces the original required motors, and saves costs.

[0020] This solution allows the lifting seat to rise to the specified position, and then allows the rack to mesh with the driving gear, so that the rack can make the driving gear rotate to any desired angle, and then the turntable rotates to the specified angle. At this time, the tool with the required number moves to face the push-pull frame, and the tool is replaced. No additional control mechanism is required, and this function is achieved through the original components of the five-axis machining center.

[0021] The lifting seat was originally only used to drive the tool to move up and down and change the processing position of the tool, but in this solution, the lifting seat can also drive the rack to move, so that the rack cooperates with the driving gear to rotate the turntable, and the pressure rod can cooperate with the lower pressure frame so that the lifting frame drives the tool to separate from the tool swivel seat, which is convenient for replacing the tool.

[0022] This solution uses the cooperation between the push-pull frame and the clamping rod, so that during the push-pull frame's forward and backward movement, a new tool can be installed on the lifting frame, and an old tool can be removed from the lifting frame and reinstalled on the turntable, without the need for additional excessive actions. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 , Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the lifting seat, the connecting rotating seat and the tool rotating seat of the present invention; Figure 4 It is a structural schematic diagram of the tool changing mechanism of the present invention.

[0024] Figure 5 It is a schematic structural diagram of the tool of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the lifting frame of the present invention driving the tool to move above the tool rotating seat.

[0026] Figure 7 It is a schematic diagram of the structure when the tool of the present invention passes through two second abutment heads.

[0027] Figure 8It is a schematic diagram of the structure when the tool of the present invention abuts against the first abutment head.

[0028] Fig. 9 A schematic diagram of the structure when the tool with a designated number in the present invention is located at the upper end of the lifting frame.

[0029] Fig.10 It is a structural schematic diagram of the present invention when tool change is completed.

[0030] Fig.11 It is a schematic structural diagram of the first abutment head and the guide rod when they cooperate with each other in the present invention.

[0031] Description of the numbers in the figure: 1. Shell; 21. Workbench; 22. Left and right guide rails; 23. Front and rear guide rails; 24. Longitudinal guide rails; 25. Lower pressure frame; 26. Bed; 27. Tool holder cover; 31. Lifting seat; 32. Connecting swivel seat; 33. Tool swivel seat; 331. Retaining frame; 34. Retaining rod; 35. Push plate; 36. Spring; 37. Driving frame; 371. Rack; 4. Tool changing mechanism; 41. Turntable; 411. Slot; 412 , turntable gear; 42, end gear; 43, driving gear; 5, tool; 51, tool changing slot; 52, tool clamping slot; 53, positioning magnet; 6, spindle; 61, rotating shaft; 62, lifting frame; 63, connecting frame; 64, synchronous belt; 641, pressure rod; 71, push rod; 72, push-pull frame; 73, clamping rod; 731, first butt; 732, second butt; 8, positioning frame; 81, guide rod. DETAILED DESCRIPTION

[0032] Specific embodiment 1: Please refer to Figure 1-11 A five-axis machining center includes a bed 26, a lifting seat 31 longitudinally slidably connected to the bed 26, a connecting swivel seat 32 rotatably connected to the front end of the lifting seat 31, and a tool swivel seat 33 rotatably connected to the connecting swivel seat 32; the angle between the rotating axis of the tool swivel seat 33 and the rotating axis of the connecting swivel seat 32 is 45°.

[0033] The tool swivel seat 33 is rotatably connected to a spindle 6; the spindle 6 is detachably connected to a tool 5; a tool changing mechanism 4 is installed on the upper part of the bed 26; the tool changing mechanism 4 includes a rotatably arranged turntable 41 and a rotatably arranged drive gear 43 connected to the turntable 41 in one-way transmission; a plurality of spare tools 5 are evenly installed circumferentially on the turntable 41.

[0034] The lifting seat 31 is slidably connected with a driving frame 37 capable of transmitting with a driving gear 43; a rack 371 is provided on the driving frame 37; when the connecting swivel seat 32 and the tool swivel seat 33 move until the tool 5 is vertically upward, it is in a tool changing state, and the rack 371 is engaged with the driving frame 37.

[0035] The included angle between the rotation axis of the spindle 6 and the rotation axis of the tool swivel 33 is 45°.

[0036] A second spring for returning the driving frame 37 is installed between the driving frame 37 and the lifting seat 31 .

[0037] The connecting swivel seat 32 is axially slidably connected with a push rod 34 capable of pushing the driving frame 37 to move; the tool swivel seat 33 is provided with a push frame 331 capable of abutting against the push rod 34 and thereby driving the push rod 34 to move.

[0038] When the connecting swivel seat 32 and the tool swivel seat 33 are relatively perpendicular, and the connecting swivel seat 32 is rotated until the tool 5 is vertically upward, the support frame 331 abuts against the support rod 34, and the support rod 34 moves to the extreme position close to the lifting seat 31. At the same time, the support rod 34 is opposite to the driving frame 37, pushing the driving frame 37 to move until the rack 371 is engaged with the driving gear 43.

[0039] A push plate 35 is slidably connected between the push rod 34 and the lifting seat 31 on the connecting rotating seat 32 ; a spring 36 is installed between the push plate 35 and one end of the push rod 34 close to the connecting seat 32 .

[0040] When the connecting swivel seat 32 and the tool swivel seat 33 are relatively vertical, and the connecting swivel seat 32 has not been rotated to the point where the tool 5 is vertically upward, the push plate 35 abuts against the end surface of the lifting seat 31, and the push rod 34 moves to the limit position close to the lifting seat 31, and the spring is compressed. By setting the spring 36 and the push plate 35, when the push rod 34 is not directly opposite to the driving frame 37, the push frame 331 pushes the push rod 34 to move and will not collide with the lifting seat 311, thereby avoiding affecting normal use.

[0041] The rotating shaft of the turntable 41 is arranged longitudinally; a turntable gear 412 is coaxially arranged at the lower end of the turntable 41; an end gear 42 meshing with the turntable gear 412 is rotatably connected to the bed 26; the end gear 42 is coaxially arranged with the drive gear 43, and a ratchet mechanism is installed between the end gear 42 and the drive gear 43.

[0042] The rotating shaft of the driving gear 43 is arranged in the horizontal direction; when the rack 371 moves upward, the rack 371 causes the turntable 41 to rotate through the driving gear 43 and the ratchet mechanism; when the rack 371 moves downward, the rack 371 drives the driving gear 43 to rotate, and due to the characteristics of the ratchet mechanism, the turntable 41 does not rotate.

[0043] The spindle 6 includes a rotating shaft 61 rotatably connected to the tool swivel seat 33, and a lifting frame 62 axially slidably connected to the rotating shaft 61 and circumferentially rotating synchronously with the rotating shaft 61; the tool 5 is provided with a tool clamping groove 52 that can abut against the end surface of the lifting frame 62.

[0044] The tool slot 52 is inserted into the lifting frame 62 and abuts against the end surface of the lifting frame 62, so that when the rotating shaft 61 rotates, the rotating shaft 61 drives the lifting frame 63 and the tool 5 to rotate synchronously.

[0045] When the tool 5 is vertically upward, the lifting frame 62 moves upward, thereby driving the tool 5 to move upward synchronously until it is opposite to the turntable 41, so as to facilitate the replacement of the tool 5.

[0046] A connecting frame 63 for driving the lifting frame 62 to move is slidably connected inside the tool swivel seat 33; a synchronous belt 64 axially distributed along the rotating shaft 61 is installed inside the tool swivel seat 33; the connecting frame 63 is fixedly connected to one side of the surface of the synchronous belt 64; a pressure rod 641 extending to the outside of the tool swivel seat 33 is provided on the other side of the surface of the synchronous belt 64; a lower pressure frame 25 for preventing the pressure rod 641 from moving is installed on the upper part of the bed 26; the movement direction of the pressure rod 641 is opposite to that of the connecting frame 63.

[0047] When the tool 5 is vertically upward, it drives the pressure rod 641 to be located directly below the lower pressure frame 25. When the lifting seat 31 moves upward until the pressure rod 641 is in contact with the lower pressure frame 25, the pressure rod 641 will no longer move. At this time, the lifting seat 31 continues to move upward, the synchronous belt 64 will operate, and the pressure rod 641 will move downward relative to the tool rotating seat 33, and then the connecting frame 63 drives the lifting frame 62 to move upward relative to the tool rotating seat 33, and the lifting frame 62 drives the tool 5 to separate from the tool rotating seat 33.

[0048] The side wall of the tool 5 is provided with a positioning magnet 53, and the rotating shaft 61 is provided with an electromagnet that can be tightly attracted to the positioning magnet 53. When the electromagnet is energized, it can be firmly attracted to the positioning magnet 53, thereby fixing the tool 5.

[0049] The outer wall of the tool 5 is provided with a tool changing groove 51 ; a push-pull frame 72 is slidably connected to the bed 26 above the turntable 41 along the radial direction of the turntable 41 ; the push-pull frame 72 is rotatably connected with two symmetrically arranged clamping rods 73 that can be engaged with the tool changing groove 51 .

[0050] The sliding direction of the push-pull frame 72 is directly opposite to the tool 5 in the tool changing state, and the rotating axis of the clamping rod 73 is arranged longitudinally.

[0051] The clamping rod 73 is provided with a first abutment 731 on a side of the clamping rod 73 , which is close to the center of the rotating disk 41 ; the clamping rod 73 is provided with a second abutment 732 on a side of the clamping rod 73 , which is far from the center of the rotating disk 41 .

[0052] The first abutting head 731 and the second abutting head 732 can both abut against the outer wall of the tool 5 to push the tool 5 to move.

[0053] In the initial state, the push-pull frame 72 is located above the turntable 41, the two clamping rods 73 are relatively inclined, and the two first abutting heads 731 abut against each other. At this time, the distance between the two second abutting heads 732 is sufficient for the tool 5 to pass through.

[0054] A positioning frame 8 is fixedly connected to the bed 26; a push rod 71 for driving the push-pull frame 72 to move is fixedly connected to the positioning frame 8; two inclined and symmetrically arranged guide rods 81 are arranged on the upper end of the positioning frame 8; the guide rods 81 can contact with the first abutment heads 731, thereby bringing the two first abutment heads 731 closer to each other.

[0055] The bed 26 is provided with a workbench 21 , left and right guide rails 22 for driving the workbench to move left and right, and front and rear guide rails 23 for driving the left and right guide rails 22 to move forward and backward. The bed 26 is provided with a longitudinal guide rail 24 . The lifting seat 31 is installed on the longitudinal guide rail 24 .

[0056] The bed 26 is installed in the housing 1 ; a tool holder cover 27 covering the tool changing mechanism 4 is installed in the housing 1 .

[0057] The machining center also includes multiple motors that respectively drive the swivel seat 32, the tool swivel seat 33, and the rotating shaft 61 to rotate; each motor, the left and right guide rails 22, the front and rear guide rails 23, the longitudinal guide rail 24, the push rod 71, and the electromagnet are respectively electrically connected to the control unit in the housing 1.

[0058] The turntable 41 has a plurality of numbers, each number corresponds to a tool, and the tool can be replaced by selecting a designated number.

[0059] When processing a part, the material is fixed on the upper end of the workbench 21, and the tool 5 cuts the material through the coordinated operation of various components.

[0060] When the tool needs to be replaced, the rotating shaft 61 drives the tool 5 to rotate to the tool changing slot 51 arranged along the front-to-back direction, so that the clamping rod 73 can be inserted into the tool changing slot 51, and the number corresponding to the tool 5 at the specified position is selected. The control unit automatically calculates the angle required for the turntable 41 to rotate, and then calculates other data. Then the lifting seat 31 is controlled to rise to a corresponding height and then stop, and then the rotating seat 32 and the tool rotating seat 33 are connected to rotate, so that the tool 5 rotates to the vertical upward, and then the support frame 331 pushes the support rod 34 to move in the direction close to the lifting seat 31, so that the corresponding position on the rack 371 on the driving frame 37 is engaged with the driving gear 43.

[0061] At this time, the lifting seat 31 continues to move upward, and the rack 371 will drive the driving gear 43 to rotate a corresponding angle, and then the driving gear 43 drives the turntable 41 to rotate a required angle, so that the tool 5 with a specified number moves to face the push-pull frame 72.

[0062] After the tool 5 rotates to the corresponding position, the lifting seat 31 continues to move upward, so that the lower pressure frame 25 and the pressure rod 641 abut against each other, and then the lifting frame 62 pushes the tool 5 to move upward relative to the tool rotating seat 33, and finally the tool 5 is opposite to the push-pull frame 72.

[0063] Then the push rod 71 pushes the push-pull frame 72 to move forward, and the tool 5 with the corresponding number enters between the two clamping rods 73, and after passing through the two second abutting heads 732, the tool changing slot 51 abuts against the side walls of the two clamping rods 73, forcing the two clamping rods 73 to rotate relative to each other. When the tool 5 abuts against the first abutting heads 731, the two clamping rods 73 are relatively parallel, and the clamping rods 73 are inserted into the tool changing slot 51. At this time, the distance between the two first abutting heads cannot allow the tool 5 to pass through.

[0064] The push-pull frame 72 continues to move forward, and the clamping rod 73 drives the tool 5 with the corresponding number to move forward synchronously, until the tool changing slot 51 on the replaced tool 5 is inserted into the clamping rod 73 and abuts against the first abutment 731. Then the first abutment 731 pushes the replaced tool 5 to leave the lifting frame 62, and the tool 5 with the designated number moves to the upper end of the lifting frame 62.

[0065] Then, the rotating shaft 61 rotates a certain angle, and the tool 5 with the specified number rotates synchronously by a corresponding angle, so that the tool changing slot 51 is separated from the clamping rod 73. At this time, the lifting seat 31 moves downward, and the lifting frame 62 will drive the tool 5 with the specified number to move downward relative to the tool rotating seat 33, and the tool 5 with the specified number is separated from the clamping rod 73. Finally, the tool 5 with the specified number is inserted into the tool rotating seat 33 to complete the tool change.

[0066] Then the push rod 71 drives the push-pull frame 72 to move backward, and the clamping rod 73 drives the replaced tool 5 to move backward synchronously, until the replaced tool 5 is inserted into the vacant slot 411, and the replaced tool is installed on the turntable 41. The push-pull frame 72 continues to move backward, and the first abutment 731 will contact the guide rod 81 and move along the guide rod 81, and finally the two first abutment 731 will abut against each other and restore the initial state.

[0067] The tool swivel 33 is controlled to rotate, so that the support frame 331 is separated from the support rod 34, and the driving frame 37 is separated from the rack 371 and the driving gear 43 under the action of the second spring, and the push plate 35 moves into the tool swivel 33, thereby completing a tool change operation.

Claims

1. A five-axis machining center, comprising a bed (26), a lifting seat (31) longitudinally slidably connected to the bed (26), a connecting seat (32) rotatably connected to the front end of the lifting seat (31), and a tool swivel seat (33) rotatably connected to the connecting seat (32); the angle between the rotating axis of the tool swivel seat (33) and the rotating axis of the connecting seat (32) is 45°, characterized in that: The tool rotating seat (33) is rotatably connected to a main shaft (6); the main shaft (6) is detachably connected to a tool (5); a tool changing mechanism (4) is installed on the upper part of the bed (26); the tool changing mechanism (4) comprises a rotatably arranged rotating disk (41) and a rotatably arranged driving gear (43) connected to the rotating disk (41) in a one-way transmission manner; a plurality of spare tools (5) are evenly installed circumferentially on the rotating disk (41); The lifting seat (31) is slidably connected to a driving frame (37) capable of transmitting with a driving gear (43); a rack (371) is provided on the driving frame (37); when the connecting seat (32) and the tool seat (33) move until the tool (5) is vertically upward, the rack (371) meshes with the driving frame (37).

2. A five-axis machining center according to claim 1, characterized in that: The connecting swivel seat (32) is axially slidably connected with a push rod (34) capable of pushing the driving frame (37) to move; the tool swivel seat (33) is provided with a push frame (331) capable of abutting against the push rod (34) and thereby driving the push rod (34) to move.

3. A five-axis machining center according to claim 2, characterized in that: A push plate (35) is slidably connected between the push rod (34) and the lifting seat (31) on the connecting rotating seat (32); a spring (36) is installed between one end of the push rod (34) close to the connecting seat (32) and the push plate (35).

4. A five-axis machining center according to claim 1, characterized in that: A turntable gear (412) is coaxially arranged at the lower end of the turntable (41); an end face gear (42) meshing with the turntable gear (412) is rotatably connected to the bed (26); the end face gear (42) and the drive gear (43) are coaxially arranged, and a ratchet mechanism is installed between the end face gear (42) and the drive gear (43).

5. The five-axis machining center according to claim 1, characterized in that: The spindle (6) comprises a rotating shaft (61) rotatably connected to the tool rotating seat (33), and a lifting frame (62) axially slidably connected to the rotating shaft (61) and circumferentially rotating synchronously with the rotating shaft (61); the tool (5) is provided with a tool clamping groove (52) capable of abutting against the end surface of the lifting frame (62).

6. A five-axis machining center according to claim 5, characterized in that: A connecting frame (63) for driving the lifting frame (62) to move is slidably connected inside the tool swivel seat (33); a synchronous belt (64) axially distributed along the rotating shaft (61) is installed inside the tool swivel seat (33); the connecting frame (63) is fixedly connected to one side of the surface of the synchronous belt (64); a pressure rod (641) extending to the outside of the tool swivel seat (33) is provided on the other side of the surface of the synchronous belt (64); a lower pressure frame (25) for preventing the pressure rod (641) from moving is installed on the upper part of the bed (26); the movement direction of the pressure rod (641) is opposite to that of the connecting frame (63).

7. A five-axis machining center according to claim 5, characterized in that: A positioning magnet (53) is provided on the side wall of the tool (5); and an electromagnet capable of being tightly attracted to the positioning magnet (53) is provided in the rotating shaft (61).

8. The five-axis machining center according to claim 1, characterized in that: The outer wall of the tool (5) is provided with a tool changing groove (51); a push-pull frame (72) is slidably connected to the bed (26) above the turntable (41) along the radial direction of the turntable (41); and the push-pull frame (72) is rotatably connected to two symmetrically arranged clamping rods (73) capable of engaging with the tool changing groove (51).

9. A five-axis machining center according to claim 8, characterized in that: The clamping rod (73) is provided with a first abutment head (731) on a side of the rotating shaft of the clamping rod (73) close to the center of the rotating disk (41); the clamping rod (73) is provided with a second abutment head (732) on a side of the rotating shaft of the clamping rod (73) away from the center of the rotating disk (41); The first abutment head (731) and the second abutment head (732) can both abut against the outer wall of the tool (5) to thereby push the tool (5) to move.

10. A five-axis machining center according to claim 9, characterized in that: A positioning frame (8) is fixedly connected to the bed (26); a push rod (71) for driving the push-pull frame (72) to move is fixedly connected to the positioning frame (8); two inclined and symmetrically arranged guide rods (81) are arranged at the upper end of the positioning frame (8); the guide rods (81) can contact the first abutment heads (731), thereby bringing the two first abutment heads (731) closer to each other.

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