Five-axis numerical control machining center

Abstract

The invention discloses a five-axis numerical control machining center and relates to the technical field of machining centers, the five-axis numerical control machining center comprises a machine base, a first transmission assembly, a second transmission assembly and a third transmission assembly, a first door plate and a second door plate are synchronously, vertically and slidably connected to the machine base, and a first carrying plate and a second carrying plate are horizontally and slidably connected to the machine base in a reciprocating mode; the first carrying plate and the second carrying plate are each rotationally connected with a clamping block through a linkage assembly, a clamping mechanism is vertically connected into the machine base in a sliding mode, and the first transmission assembly is driven by vertical sliding of the first door plate so that the first carrying plate can horizontally slide in a reciprocating mode. The second transmission assembly is driven by vertical upward movement of the second door plate so that the second carrying plate can horizontally slide in a reciprocating mode, and the third transmission assembly is driven by horizontal sliding of the second carrying plate so that the clamping mechanism can vertically slide. According to the invention, an overweight workpiece can be changed from a horizontal state to a vertical state, so that the efficiency of processing the end surface of the workpiece is higher.

Description

Technical Field

[0001] The invention relates to the technical field of machining centers, in particular to a five-axis CNC machining center. Background Art

[0002] The CNC machining center is a high-efficiency automated machine tool composed of mechanical equipment and CNC systems, which is suitable for processing complex parts. The CNC machining center is one of the CNC machine tools with the highest output and the most extensive application in the world. It has strong comprehensive processing capabilities, can complete more processing content after the workpiece is clamped once, and has high processing accuracy. The five-axis linkage CNC machining center system is the only means to solve the processing of impellers, blades, marine propellers, heavy generator rotors, turbine rotors, large diesel engine crankshafts, etc.

[0003] For example, the Chinese patent with publication number CN117428485A and titled "A Multifunctional Five-Axis CNC Machining Center" includes a processing table, an axially movable table top is arranged at the inner bottom end of the processing table, four sets of dovetail electric sliding rails are arranged on the surface of the axially movable table top, and the four sets of dovetail electric sliding rails are internally slidably connected with a cleaning component. By cooperating with the cleaning component, the processing component and the clamping base component, using a laser locator, a laser interferometer tracker and a three-dimensional position sensor, when there is a height difference on the surface of the part under the action of the force resistance end, part of the vibrating cleaning head is driven to be forced to retract to the inside of the cavity connection end, so that the vibrating cleaning head forms a shape fit with the surface of the connected part, and the chips accumulated in the bottom concave part of the curved surface generated during or after the CNC machining process can be cleaned in real time, thereby improving the overall machining accuracy and reducing the influence of chips on the machining efficiency when machining complex curved surfaces.

[0004] Although the multifunctional five-axis CNC machining center in the above patent is practical and convenient, it also has its shortcomings. During the production process of the above device, if the weight of the workpiece to be processed is too heavy, it is difficult to change the workpiece from a horizontal state to a vertical state, causing the processing mechanism to process the end face of the workpiece into an impeller, etc., and it is difficult to align the clamping mechanism, which makes the workpiece prone to wear during the alignment and clamping process. The clamping of the parts before processing requires a lot of time, and the overall processing efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to provide a five-axis CNC machining center to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: the five-axis CNC machining center includes a machine base, a first transmission assembly, a second transmission assembly and a third transmission assembly, the machine base is synchronously vertically slidably connected with a first door panel and a second door panel, the machine base is horizontally reciprocatingly slidably connected with a first carrier plate and a second carrier plate, the first carrier plate and the second carrier plate are rotatably connected with a clamping block through a linkage assembly, a clamping mechanism is vertically slidably connected in the machine base, the first transmission assembly is driven by the vertical sliding of the first door panel to make the first carrier plate slide back and forth horizontally, the second transmission assembly is driven by the vertical upward movement of the second door panel to make the second carrier plate slide back and forth horizontally, and the third transmission assembly is driven by the horizontal sliding of the second carrier plate to make the clamping mechanism slide vertically.

[0007] Furthermore, the first transmission assembly includes a first cylinder, a second cylinder and a connecting rod, the first cylinder and the second cylinder are respectively arranged on one side of the first carrier plate and the first door panel, and both ends of the connecting rod are rotatably sleeved with the first cylinder and the second cylinder respectively.

[0008] Furthermore, a third sliding block is provided at the bottom of the first carrier plate, a third sliding groove is provided in the base, the third sliding block is slidably connected in the third sliding groove, and the cross-sections of the third sliding block and the third sliding groove are both inverted T-shaped.

[0009] Furthermore, the second transmission assembly includes a rotating rod, a second slider and a protrusion. A rotating rod is rotatably connected in the machine base. The rotating rod is provided with two spiral grooves connected end to end. The second slider is slidably sleeved on the rotating rod. The protrusion is arranged in the rotating rod. Both of the spiral grooves can slide with the protrusion. The top of the second slider is fixedly connected to the bottom of the second carrier plate. An adjustment mechanism is provided between the rotating rod and the second door panel.

[0010] Furthermore, the adjusting mechanism includes a second rack, a gear ring meshing with the second rack, a ratchet, a pawl meshing with the ratchet, a second rotating shaft, a torsion spring and a turntable, the second rack is fixedly connected to one side of the second door panel, the gear ring is rotatably connected in the machine base, the ratchet is arranged on the inner wall of the gear ring and is integrally formed with the gear ring, the turntable is rotatably connected in the ratchet, the second rotating shaft is penetrated in the turntable, the pawl is rotatably sleeved on the second rotating shaft, a torsion spring is arranged between the pawl and the second rotating shaft, a groove is opened on the turntable, the pawl is rotatably connected in the groove, and one end of the rotating rod is coaxially fixedly connected to one end of the turntable.

[0011] Furthermore, the third transmission assembly includes a bracket and a pushing block, the bottom of the second sliding block is fixedly connected to the pushing block through the bracket, an abutment block is provided at the bottom of the clamping mechanism, a fourth slide groove and a fifth slide groove communicated with the fourth slide groove are provided in the machine base, and the fourth slide groove is vertically arranged, the fifth slide groove is horizontally arranged, the bottom end of the abutment block is inclined, and the pushing block and the abutment block are slidably abutted and cooperated.

[0012] Furthermore, the two linkage components each include a first rotating shaft, a gear, and a first rack meshing with the gear; the two first rotating shafts are respectively rotatably connected in the first carrier plate and the second carrier plate; the two gears are respectively sleeved on the two first rotating shafts; the two first racks are both arranged in the machine base; and the two clamping blocks are respectively sleeved on the two first rotating shafts.

[0013] Furthermore, a first slide groove is provided on the first carrier plate, a first slider is slidably connected in the first slide groove, a first rotating shaft on the first carrier plate is rotatably connected in the first slider, a stopper is provided in the base, the stopper is abutted against the first slider, and an elastic member is provided between the first slider and the inner wall of the first slide groove.

[0014] Furthermore, the elastic member includes a telescopic column and a spring, the spring is sleeved on the telescopic column, two ends of the spring are respectively fixedly connected to the inner wall of the first slide groove and the first slider, and two ends of the telescopic column are respectively fixedly connected to the inner wall of the first slide groove and the first slider.

[0015] Furthermore, a cylinder is disposed on the top of the machine base, an output end of the cylinder is fixedly connected to a connecting plate, and the tops of the first door panel and the second door panel are both fixedly connected to the bottom of the connecting plate.

[0016] Compared with the prior art, the beneficial effects provided by the present invention are as follows: the five-axis CNC center lifts the first door panel and the second door panel, and in the process of the second door panel moving up, the second carrier plate is reciprocated and slid back and forth through the second transmission assembly, and in the process of the clamping block on the second carrier plate moving toward the clamping mechanism, the linkage assembly is rotated 90° and the processed workpiece vertically arranged on the clamping mechanism is clamped, and in the process of the clamping block on the second carrier plate moving away from the clamping mechanism, the linkage assembly is reversed 90° to transport the workpiece in a horizontal state, and in the process of the first door panel moving up, the first carrier plate is reciprocated and slid back and forth through the first transmission assembly. The workpiece moves toward the clamping mechanism, and the clamping block on the first carrier is rotated 90 degrees through the linkage component during the movement of the clamping block toward the clamping mechanism to make the workpiece vertical. At the same time, the second carrier moves away from the first carrier, and the clamping moves up through the third transmission component to clamp the workpiece to be processed on the clamping block on the first carrier. This can greatly shorten the clamping time before processing, and can preliminarily clamp the parts to be processed during the processing of parts, and unload the processed parts, thereby improving the processing efficiency and avoiding wear between the workpiece and the device due to inaccurate alignment during the alignment and clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 A top view of the overall structure provided by an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0021] Figure 4 for Figure 3 Sectional view at DD in the middle;

[0022] Figure 5 for Figure 4 Enlarged view of point E in the middle;

[0023] Figure 6 for Figure 2 Sectional view at the middle BB;

[0024] Figure 7 for Figure 2 Sectional view at CC;

[0025] Figure 8 for Figure 7 Cross-sectional view at FF;

[0026] Fig. 9 A schematic diagram of a local structure provided for an embodiment of the present invention.

[0027] Description of reference numerals: 1, base; 2, first door panel; 3, second door panel; 4, first carrier plate; 5, second carrier plate; 6, first rotating shaft; 7, gear; 8, clamping block; 9, first slider; 10, stopper; 11, first rack; 12, first cylinder; 13, second cylinder; 14, connecting rod; 15, second rack; 16, gear ring; 17, ratchet; 18, pawl; 19, second rotating shaft; 20, torsion spring; 21, groove; 22. Turntable; 23. Turnbar; 24. Spiral groove; 25. Second slider; 26. Protrusion; 27. Bracket; 28. Push block; 29. ​​Abutment block; 30. Clamping mechanism; 31. Second slide groove; 32. Fourth slide groove; 33. Fifth slide groove; 34. Spring; 35. Telescopic column; 36. First slide groove; 37. Connecting plate; 38. Cylinder; 39. Third slider; 40. Third slide groove; 41. Workpiece; 42. Processing mechanism. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] See also Figure 1-9, a technical solution provided by an embodiment of the present invention: the five-axis CNC machining center includes a machine base 1, a first transmission assembly, a second transmission assembly and a third transmission assembly, the machine base 1 is synchronously vertically slidably connected with a first door panel 2 and a second door panel 3, the machine base 1 is horizontally reciprocatingly slidably connected with a first carrier plate 4 and a second carrier plate 5, the first carrier plate 4 and the second carrier plate 5 are both rotatably connected with a clamping block 8 through a linkage assembly, a clamping mechanism 30 is vertically slidably connected in the machine base 1, the first transmission assembly is driven by the vertical sliding of the first door panel 2 to make the first carrier plate 4 reciprocate horizontally The second transmission assembly receives the vertical upward movement drive of the second door panel 3 to make the second carrier plate 5 slide back and forth horizontally. The third transmission assembly receives the horizontal sliding drive of the second carrier plate 5 to make the clamping mechanism 30 slide vertically. Specifically, a processing mechanism 42 is provided in the machine base 1 for processing the workpiece 41. The moving speed of the first carrier plate 4 is slower than that of the second carrier plate 5. When the second carrier plate 5 reciprocates one back and forth, the first carrier plate 4 starts to move in the direction away from the clamping mechanism 30, lifting the first door panel 2 and the second door panel 3. The process of the second door panel 3 moving up is completed by the second The transmission assembly enables the second carrier plate 5 to slide back and forth one time. During the process of the clamping block 8 on the second carrier plate 5 moving toward the clamping mechanism 30, the linkage assembly rotates 90° and clamps the vertically arranged and processed workpiece 41 on the clamping mechanism 30. During the process of the clamping block 8 on the second carrier plate 5 moving away from the clamping mechanism 30, the linkage assembly reverses 90° to transport the workpiece 41 in a horizontal state. During the process of the first door panel 2 moving upward, the first carrier plate 4 is moved toward the clamping mechanism 30 through the first transmission assembly, and the clamping block 8 on the first carrier plate 4 moves toward the clamping mechanism 30. During the movement of the holding mechanism 30, the linkage component is rotated 90° to make the workpiece 41 vertical. At the same time, the second carrier plate 5 moves away from the first carrier plate 4, and the clamping is moved up by the third transmission component to clamp the workpiece 41 to be processed on the clamping block 8 on the first carrier plate 4. This can greatly shorten the clamping time before processing, and can preliminarily clamp the parts to be processed during the processing of parts, and unload the processed parts, thereby improving the processing efficiency and avoiding wear between the workpiece 41 and the device due to inaccurate alignment during the clamping process.

[0030] As a preferred technical solution, the first transmission assembly includes a first cylinder 12, a second cylinder 13 and a connecting rod 14. The first cylinder 12 and the second cylinder 13 are respectively arranged on one side of the first carrier plate 4 and the first door panel 2, and the two ends of the connecting rod 14 are rotatably connected to the first cylinder 12 and the second cylinder 13 respectively. Specifically, when the first door panel 2 is lifted, since the length of the connecting rod 14 is fixed, as the height of the first cylinder 12 is lifted, the horizontal position of the first cylinder 12 remains unchanged, so that the horizontal position of the second cylinder 13 changes, and the connecting rod 14 drives the first carrier plate 4 to move horizontally through the second cylinder 13.

[0031] As a preferred technical solution, a third slider 39 is provided at the bottom of the first carrier plate 4, and a third slide groove 40 is opened in the base 1. The third slider 39 is slidably connected in the third slide groove 40. The cross-sections of the third slider 39 and the third slide groove 40 are both inverted T-shaped. Specifically, the third slide groove 40 is horizontally arranged, and the third slider 39 slides horizontally in the third slide groove 40 to avoid vertical displacement of the first carrier plate 4. At the same time, the cooperation between the third slider 39 and the third slide groove 40 plays a guiding role, so that the first carrier plate 4 makes horizontal linear motion.

[0032] As a preferred technical solution, the second transmission assembly includes a rotating rod 23, a second slider 25 and a protrusion 26. A rotating rod 23 is rotatably connected in the machine base 1. Two spiral grooves 24 connected end to end are opened on the rotating rod 23. The second slider 25 is slidably sleeved on the rotating rod 23. The protrusion 26 is arranged in the rotating rod 23. Both spiral grooves 24 can slide with the protrusion 26. The top of the second slider 25 is fixedly connected to the bottom of the second carrier plate 5. An adjustment mechanism is provided between the rotating rod 23 and the second door panel 3. Specifically, the adjustment mechanism The structure includes a second rack 15, a ring gear 16 meshing with the second rack 15, a ratchet 17, a pawl 18 meshing with the ratchet 17, a second rotating shaft 19, a torsion spring 20 and a rotating disk 22. The second rack 15 is fixedly connected to one side of the second door panel 3, the ring gear 16 is rotatably connected in the machine base 1, the ratchet 17 is arranged on the inner wall of the ring gear 16 and is integrally formed with the ring gear 16, the rotating disk 22 is rotatably connected in the ratchet 17, the second rotating shaft 19 is penetrated in the rotating disk 22, the pawl 18 is rotatably sleeved on the second rotating shaft 19, and the pawl 18 is A torsion spring 20 is arranged between the second rotating shaft 19, a groove 21 is provided on the rotating disk 22, the pawl 18 is rotatably connected in the groove 21, one end of the rotating rod 23 is coaxially fixedly connected with one end of the rotating disk 22, the second door panel 3 drives the second rack 15 to move up, and the gear ring 16 is driven to rotate through the meshing transmission of the second rack 15 and the gear ring 16, and the elastic deformation of the torsion spring 20 makes the ratchet 17 and the pawl 18 cooperate to drive the rotating disk 22 to rotate, and the rotating disk 22 drives the rotating rod 23 to rotate, and the protrusion 26 is connected with the two The sliding cooperation between the spiral grooves 24 can drive the second slider 25 to slide back and forth along the length direction of the rotating rod 23. At the same time, a second slide groove 31 is opened in the machine base 1, and the second slider 25 is slidably connected in the second slide groove 31. The second slide groove 31 limits the circumferential rotation of the second slider 25. When the second door panel 3 moves downward, the second rack 15 drives the ring gear 16 to reverse, and the ratchet 17 reverses with the ring gear 16 and does not engage with the pawl 18, so it does not drive the turntable 22 to rotate. At this time, the second carrier plate 5 has moved to the initial position.

[0033] As a preferred technical solution, the third transmission assembly includes a bracket 27 and a pushing block 28. The bottom of the second slider 25 is fixedly connected to the pushing block 28 through the bracket 27. A contact block 29 is provided at the bottom of the clamping mechanism 30. A fourth slide groove 32 and a fifth slide groove 33 communicating with the fourth slide groove 32 are provided in the machine base 1. The fourth slide groove 32 is vertically arranged, the fifth slide groove 33 is horizontally arranged, the bottom end of the contact block 29 is inclined, and the pushing block 28 and the contact block 29 are slidably abutted and cooperated. Specifically, when the second slider 25 drives the second carrier 5 to move toward the clamping mechanism 30, the pushing block 28 is moved away from the contact block 29 through the bracket 27. Since the bottom end of the contact block 29 is inclined, the contact block 29 moves downward in the fourth slide groove 32, thereby driving the clamping mechanism 30 to move downward. At the same time, the workpiece 41 that has been processed on the clamping mechanism 30 moves downward, so that the clamping block 8 on the second carrier 5 can clamp the middle part of the processed workpiece 41 to avoid unstable clamping.

[0034] As a preferred technical solution, the two linkage components include a first rotating shaft 6, a gear 7 and a first rack 11 meshing with the gear 7. The two first rotating shafts 6 are respectively rotatably connected in the first carrier plate 4 and the second carrier plate 5. The two gears 7 are respectively mounted on the two first rotating shafts 6. The two first racks 11 are both arranged in the machine base 1. The two clamping blocks 8 are respectively mounted on the two first rotating shafts 6. Specifically, during the movement of the two clamping blocks 8, the corresponding gears 7 are meshed with the corresponding first racks 11 for transmission, so that the clamped workpiece 41 is converted between the horizontal and vertical states.

[0035] As a preferred technical solution, a first slide groove 36 is provided on the first carrier 4, and a first slider 9 is slidably connected in the first slide groove 36. The first rotating shaft 6 on the first carrier 4 is rotatably connected in the first slider 9. A stopper 10 is provided in the base 1, and the stopper 10 abuts against the first slider 9. An elastic member is provided between the first slider 9 and the inner wall of the first slide groove 36. Specifically, the elastic member includes a telescopic column 35 and a spring 34. The spring 34 is sleeved on the telescopic column 35. The two ends of the spring 34 are respectively fixedly connected to the inner wall of the first slide groove 36 and the first slider 9. The two ends of the telescopic column 35 are respectively fixedly connected to the inner wall of the first slide groove 36 and the first slider 9. In the process of the first carrier 4 driving the first slider 9 to move toward the clamping mechanism 30, the clamping block 8 is meshed with the first rack 11 through the gear 7. The transmission causes the workpiece 41 clamped by the clamping block 8 on the first carrier 4 to change from a horizontal state to a vertical state. When the first slider 9 abuts against the stopper 10, the horizontal position of the workpiece 41 to be processed remains unchanged. At this time, the workpiece 41 to be processed is located directly above the clamping mechanism 30. The cooperation between the spring 34 and the telescopic column 35 causes relative displacement between the first carrier 4 and the workpiece 41 in the horizontal direction. At this time, the second slider 25 slides away from the clamping mechanism 30, and is driven by the bracket 27 to slide toward the clamping mechanism 30. Through the sliding abutment between the push block 28 and the abutment block 29, the abutment block 29 drives the clamping mechanism 30 to move upward, clamps the bottom end of the workpiece 41 to be processed, and facilitates the processing mechanism 42 to process the top end of the workpiece 41 to be processed.

[0036] As a preferred technical solution, a cylinder 38 is provided on the top of the base 1, and the output end of the cylinder 38 is fixedly connected to a connecting plate 37. The tops of the first door panel 2 and the second door panel 3 are fixedly connected to the bottom of the connecting plate 37. Specifically, the cylinder 38 drives the connecting plate 37 to move vertically, and drives the first door panel 2 and the second door panel 3 to move vertically synchronously through the connecting plate 37.

[0037] Working principle: The five-axis CNC center lifts the first door panel 2 and the second door panel 3 through the cylinder 38. During the upward movement of the second door panel 3, the second door panel 3 drives the second rack 15 to move upward, and the meshing transmission between the second rack 15 and the ring gear 16 drives the ring gear 16 to rotate. The elastic deformation of the torsion spring 20 makes the ratchet 17 and the pawl 18 cooperate to drive the turntable 22 to rotate, and the turntable 22 drives the rotating rod 23 to rotate. The sliding cooperation between the protrusion 26 and the two spiral grooves 24 can drive the second slider 25 to slide back and forth along the length direction of the rotating rod 23. At the same time, a second slide groove 31 is opened in the machine base 1, and the second slider 25 is slidably connected in the second slide groove 31. The second slide groove 31 limits the circumferential rotation of the second slider 25, and the clamping block 8 on the second carrier plate 5 moves toward the clamping During the movement of the holding mechanism 30, the corresponding gear 7 and the first rack 11 are rotated 90°, and the pushing block 28 is moved away from the abutting block 29 through the bracket 27. Since the bottom end of the abutting block 29 is inclined, the abutting block 29 moves downward in the fourth slide groove 32, and at the same time drives the clamping mechanism 30 to move downward. At the same time, the processed workpiece 41 on the clamping mechanism 30 moves downward, so that the clamping block 8 on the second carrier plate 5 can clamp the middle part of the processed workpiece 41 to avoid unstable clamping. During the movement of the clamping block 8 on the second carrier plate 5 away from the clamping mechanism 30, the corresponding gear 7 and the first rack 11 are reversed 90° to transport the workpiece 41 in a horizontal state. During the upward movement of the first door panel 2, due to the length of the connecting rod 14 The degree of rotation remains unchanged. As the height of the first cylinder 12 is raised, the horizontal position of the first cylinder 12 remains unchanged, so that the horizontal position of the second cylinder 13 changes. The connecting rod 14 drives the first carrier plate 4 through the second cylinder 13 to move the first carrier plate 4 toward the clamping mechanism 30. During the movement of the clamping block 8 on the first carrier plate 4 toward the clamping mechanism 30, the corresponding gear 7 and the first rack 11 are rotated 90 degrees to make the workpiece 41 in a vertical state, so as to facilitate the processing of one end of the workpiece 41. When the first slide block 9 abuts against the stopper 10, the horizontal position of the workpiece 41 to be processed remains unchanged. At this time, the workpiece 41 to be processed is located directly above the clamping mechanism 30. Through the cooperation between the spring 34 and the telescopic column 35, The first carrier plate 4 and the workpiece 41 are relatively displaced in the horizontal direction, and the second carrier plate 5 moves away from the first carrier plate 4. At this time, the second slider 25 slides away from the clamping mechanism 30, and is driven by the bracket 27 to slide toward the clamping mechanism 30. The abutment block 29 drives the clamping mechanism 30 to move up through the sliding abutment between the pushing block 28 and the abutment block 29. In the process of the first door panel 2 and the second door panel 3 moving down, the first carrier plate 4 moves in the opposite direction to reset. In the process of the second door panel 3 moving down, the second rack 15 drives the gear ring 16 to reverse, and the ratchet 17 reverses with the gear ring 16 and does not mesh with the pawl 18, so it does not drive the turntable 22 to rotate. At this time, the second carrier plate 5 has moved to the initial position to clamp the bottom end of the workpiece 41 to be processed.It can greatly shorten the clamping time before processing, and can preliminarily clamp the parts to be processed during the processing of parts, and unload the processed parts, thereby improving the processing efficiency and avoiding the wear between the workpiece 41 and the device due to inaccurate alignment during the clamping process.

[0038] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A five-axis CNC machining center, comprising a machine base (1), a first door panel (2) and a second door panel (3) are synchronously and vertically slidably connected to the machine base (1), a first carrier plate (4) and a second carrier plate (5) are horizontally and reciprocatingly slidably connected to the machine base (1), a clamping block (8) is rotatably connected to the first carrier plate (4) and the second carrier plate (5) via a linkage assembly, a clamping mechanism (30) is vertically slidably connected to the machine base (1), and is characterized in that: Also includes: A first transmission assembly, which is driven by the vertical sliding of the first door panel (2) to enable the first carrier plate (4) to slide back and forth horizontally; A second transmission assembly, which is driven by the vertical upward movement of the second door panel (3) to enable the second carrier plate (5) to slide back and forth horizontally; The third transmission assembly is driven by the horizontal sliding of the second carrier plate (5) to enable the clamping mechanism (30) to slide vertically.

2. A five-axis CNC machining center according to claim 1, characterized in that: The first transmission assembly comprises a first cylinder (12), a second cylinder (13) and a connecting rod (14); the first cylinder (12) and the second cylinder (13) are respectively arranged on one side of the first carrier plate (4) and the first door plate (2); and the two ends of the connecting rod (14) are respectively rotatably sleeved with the first cylinder (12) and the second cylinder (13).

3. A five-axis CNC machining center according to claim 2, characterized in that: A third sliding block (39) is provided at the bottom of the first carrier plate (4), a third sliding groove (40) is provided in the machine base (1), the third sliding block (39) is slidably connected in the third sliding groove (40), and the cross-sections of the third sliding block (39) and the third sliding groove (40) are both in an inverted T shape.

4. A five-axis CNC machining center according to claim 1, characterized in that: The second transmission assembly comprises a rotating rod (23), a second slider (25) and a protrusion (26); a rotating rod (23) is rotatably connected inside the machine base (1); the rotating rod (23) is provided with two spiral grooves (24) connected end to end; the second slider (25) is slidably sleeved on the rotating rod (23); the protrusion (26) is arranged inside the rotating rod (23); both of the spiral grooves (24) can slidably cooperate with the protrusion (26); the top of the second slider (25) is fixedly connected to the bottom of the second carrier plate (5); and an adjustment mechanism is provided between the rotating rod (23) and the second door panel (3).

5. A five-axis CNC machining center according to claim 4, characterized in that: The adjusting mechanism comprises a second rack (15), a gear ring (16) meshing with the second rack (15), a ratchet (17), a pawl (18) meshing with the ratchet (17), a second rotating shaft (19), a torsion spring (20) and a rotating disk (22); the second rack (15) is fixedly connected to one side of the second door panel (3); the gear ring (16) is rotatably connected in the machine base (1); the ratchet (17) is arranged on the inner wall of the gear ring (16) and is integrally formed with the gear ring (16); The rotating disk (22) is rotatably connected in the ratchet wheel (17), the second rotating shaft (19) is inserted in the rotating disk (22), the pawl (18) is rotatably sleeved on the second rotating shaft (19), a torsion spring (20) is arranged between the pawl (18) and the second rotating shaft (19), a groove (21) is provided on the rotating disk (22), the pawl (18) is rotatably connected in the groove (21), and one end of the rotating rod (23) is coaxially fixedly connected to one end of the rotating disk (22).

6. A five-axis CNC machining center according to claim 4, characterized in that: The third transmission assembly comprises a bracket (27) and a pushing block (28); the bottom of the second sliding block (25) is fixedly connected to the pushing block (28) through the bracket (27); a contact block (29) is provided at the bottom of the clamping mechanism (30); a fourth slide groove (32) and a fifth slide groove (33) communicating with the fourth slide groove (32) are provided in the machine base (1); the fourth slide groove (32) is vertically arranged, the fifth slide groove (33) is horizontally arranged, the bottom end of the contact block (29) is inclined, and the pushing block (28) and the contact block (29) are slidably contacted with each other.

7. The five-axis CNC machining center according to claim 1, characterized in that: The two linkage assemblies each comprise a first rotating shaft (6), a gear (7) and a first rack (11) meshed with the gear (7); the two first rotating shafts (6) are respectively rotatably connected to the first carrier plate (4) and the second carrier plate (5); the two gears (7) are respectively sleeved on the two first rotating shafts (6); the two first racks (11) are both arranged in the machine base (1); and the two clamping blocks (8) are respectively sleeved on the two first rotating shafts (6).

8. A five-axis CNC machining center according to claim 7, characterized in that: The first carrier plate (4) is provided with a first slide groove (36), a first slider (9) is slidably connected in the first slide groove (36), a first rotating shaft (6) on the first carrier plate (4) is rotatably connected in the first slider (9), a stopper (10) is provided in the machine base (1), the stopper (10) is abutted against the first slider (9), and an elastic member is provided between the first slider (9) and the inner wall of the first slide groove (36).

9. A five-axis CNC machining center according to claim 8, characterized in that: The elastic member comprises a telescopic column (35) and a spring (34), wherein the spring (34) is sleeved on the telescopic column (35), and the two ends of the spring (34) are respectively fixedly connected to the inner wall of the first slide groove (36) and the first slide block (9), and the two ends of the telescopic column (35) are respectively fixedly connected to the inner wall of the first slide groove (36) and the first slide block (9).

10. The five-axis CNC machining center according to claim 1, characterized in that: A cylinder (38) is arranged on the top of the machine base (1), and an output end of the cylinder (38) is fixedly connected to a connecting plate (37), and the tops of the first door panel (2) and the second door panel (3) are fixedly connected to the bottom of the connecting plate (37).

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