Five-axis numerical control machine tool

Abstract

The five-axis numerical control machine tool comprises a bottom plate and a vertical plate, the top of the bottom plate is fixedly connected with a movable sliding rail, a machining table is slidably connected into the movable sliding rail, the bottom of the machining table is rotationally connected with a mounting cylinder, a mounting disc is fixedly connected into the mounting cylinder, a lifting cylinder is mounted in the machining table, and an auxiliary ring is arranged at the top of the machining table; the end of the lifting cylinder is fixedly connected with a mounting ring, the two sides of the auxiliary ring are fixedly connected with rotating shafts, the ends of the rotating shafts are fixedly connected with reversing gears, the output end of the lifting cylinder is fixedly provided with a reversing motor, the output end of the reversing motor is fixedly connected with a positioning gear, the auxiliary ring sleeves the mounting disc, and a containing ring is arranged in the auxiliary ring. A plurality of clamping rotating shafts are rotatably connected in the containing ring, clamping arms and outer gears are fixedly connected outside the clamping rotating shafts, and a clamping gear ring is rotatably connected in the containing ring. Automatic overturning and double-end machining of workpieces are achieved, manual assistance is not needed, time is saved, and efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled machine tools, in particular to a five-axis numerically controlled machine tool. Background Art

[0002] High-end machining centers are developing in the direction of five-axis control. Five-axis linkage machining centers are characterized by high efficiency and high precision, and the workpiece can complete the processing of complex curved surfaces with one clamping. Five-axis linkage CNC machine tools are high-tech and high-precision machine tools specially used for processing complex curved surfaces. They have a significant influence on industries such as aviation, aerospace, military, scientific research, precision instruments, and high-precision medical equipment. However, when there are multiple faces of the blank that need to be processed or compound processes, manual participation is required to adjust or transfer to the corresponding machine tool for processing. For example, existing machine tools can generally only process one end of shaft parts, and the processing of the other end requires manual re-clamping after stopping the machine, but personnel need to keep watching the workpiece until one end of the processing is completed to seamlessly connect and re-clamp immediately, which reduces the processing efficiency and increases manpower input and processing work.

[0003] Based on this, the present invention designs a five-axis CNC machine tool to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a five-axis CNC machine tool to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: The transmission gear is a toothed gear of the transmission gear, and the toothed gear is a toothed gear of the transmission gear, and the toothed gear is a toothed gear of the transmission gear.

[0006] Preferably, lower hanging plates are fixedly connected at both ends of the processing table, and the lower hanging plates are located in the movable slide rail and the two are slidably matched. A movable lead screw is rotatably installed in the movable slide rail, and the movable lead screw passes through the lower hanging plate and is threadedly matched with the lower hanging plate.

[0007] Preferably, a self-rotating wheel is installed at the bottom of the processing table, and the self-rotating wheel is used to drive the installation cylinder to rotate. The self-rotating wheel and the installation cylinder are gear-driven.

[0008] Preferably, a yield window is provided at the top of the auxiliary ring, the end of the clamping arm is rotatably connected to an adaption shaft, the top of the adaption shaft is fixedly connected to a group of clamping wheels, and the clamping wheels are normally located at the yield window.

[0009] Preferably, a V-shaped frame is fixedly connected to the top of the adaptable shaft, and the clamping wheels are located at both ends of the V-shaped frame.

[0010] Preferably, the top of the clamping arm is rotatably connected to a reversing shaft and two transition wheels, a transmission chain is sleeved between the clamping shaft and the reversing wheel, the transmission chain bypasses the two transition wheels and is located in the accommodating ring, the top of the reversing shaft is fixedly connected to an outer gear ring, and the outer gear ring is meshed with the adaptation shaft.

[0011] Preferably, the mounting disk is a three-jaw chuck, and the auxiliary ring can be sleeved outside the mounting disk with the top flush with the mounting disk.

[0012] Preferably, a cross slide is installed in the vertical plate, a mounting block is fixedly connected to the output end of the cross slide, a tool holder is fixedly connected to the end of the mounting block, and a machining spindle is rotatably connected in the tool holder.

[0013] Preferably, the top of the base plate is fixedly connected to a casing, and a plurality of protective plates are sequentially stacked and slidably provided on both sides of the casing, the innermost protective plate is fixedly connected to both sides of the mounting block, and sealing plates are sequentially stacked and slidably provided on the upper and lower sides of the casing, the sealing plates are located between the innermost protective plates, and the innermost sealing plate is fixedly connected to the upper and lower sides of the mounting block.

[0014] Preferably, a plurality of cover plates are sequentially stacked and slidably provided on the top of the base plate, the cover plates are distributed on both sides of the base plate and the innermost cover plates are fixedly connected to both sides of the processing table, and the movable slide rails are located below the cover plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the device is used, the workpiece is mounted on the mounting plate. After one end of the workpiece is processed, the auxiliary ring is lifted by the lifting cylinder to a position where the workpiece is suitable for clamping. Then the clamping arm rotates toward the center of the auxiliary ring until the end of the clamping arm clamps the workpiece. The mounting plate is released so that the workpiece can be pulled out. The lifting cylinder continues to move upward to flip the auxiliary ring. The workpiece follows the flipping of the auxiliary ring so that the other end faces downward. Then the lifting cylinder falls and the workpiece is reinserted into the middle of the mounting plate. The mounting plate is started to clamp and fix the workpiece. Then the clamping gear ring is reversed, the clamping arm is retracted, and the lifting cylinder is further retracted so that the auxiliary ring stops at the mounting plate, and the top surfaces of the two are flush, thereby realizing automatic flipping of the workpiece and double-end processing without manual assistance, saving time and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the internal oblique side view structure of the present invention; Figure 2 This is a schematic diagram of the internal side view structure of the present invention; Figure 3 It is a schematic diagram of the enlarged structure of part A of the present invention; Figure 4 This is a half-section schematic diagram of the present invention from a front side perspective; Figure 5 It is a schematic diagram of the enlarged structure of part B of the present invention; Figure 6 This is a schematic diagram of a half-section structure of the present invention from a top view; Figure 7 It is a schematic diagram of the enlarged structure of part C of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bottom plate; 2. Vertical plate; 3. Moving slide rail; 4. Processing table; 5. Mounting cylinder; 6. Mounting plate; 7. Lifting cylinder; 8. Auxiliary ring; 9. Mounting ring; 10. Rotating shaft; 11. Reversing gear; 12. Reversing motor; 13. Positioning gear; 14. Accommodating ring; 15. Clamping arm; 16. External gear; 17. Clamping gear ring; 18. Lower hanging plate; 19. Moving lead screw; 20. Rotating wheel; 21. Give way window; 22. Adaptive shaft; 23. Clamping wheel; 24. V-shaped frame; 25. Reversing shaft; 26. Transition wheel; 27. Transmission chain; 28. External gear ring; 29. ​​Cross slide rail; 30. Mounting block; 31. Tool holder; 32. Processing spindle; 33. Casing; 34. Protective plate; 35. Sealing plate; 36. Cover plate, 37. Clamping rotating shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-7 , the present invention provides a technical solution: The five-axis CNC machine tool comprises a base plate 1 and a vertical plate 2. A movable slide rail 3 is fixedly connected to the top of the base plate 1. A processing table 4 is slidably connected in the movable slide rail 3. A mounting cylinder 5 is rotatably connected to the bottom of the processing table 4. A mounting plate 6 is fixedly connected in the mounting cylinder 5. A lifting cylinder 7 is installed in the processing table 4. An auxiliary ring 8 is provided on the top of the processing table 4. A mounting ring 9 is fixedly connected to the end of the lifting cylinder 7. A rotating shaft 10 is fixedly connected to both sides of the auxiliary ring 8. The rotating shaft 10 is located in the mounting ring 9 and the two are rotatably connected. A reversing gear 11 is fixedly connected to the end of the rotating shaft 10. A reversing motor 12 is fixedly installed at the output end of the lifting cylinder 7, and a positioning gear 13 is fixedly connected to the output end of the reversing motor 12. The positioning gear 13 meshes with the reversing gear 11. The auxiliary ring 8 is sleeved on the outside of the mounting plate 6. A receiving ring 14 is provided in the auxiliary ring 8. A plurality of clamping shafts 37 are rotatably connected in the receiving ring 14. A clamping arm 15 and an external gear 16 are fixedly connected outside the clamping shaft 37. A clamping gear ring 17 is rotatably connected in the receiving ring 14. The clamping gear ring 17 meshes with the external gear 16. The external gear 16 is located below the clamping arm 15.

[0021] When the device is used, the workpiece is mounted on the mounting plate 6, the movement of the processing table 4 is realized in the Y direction, and the rotation of the mounting cylinder 5 drives the mounting plate 6 to realize self-rotation, thereby cooperating with the multiple degrees of freedom of the machine tool spindle to complete the flexible processing of the workpiece; when one end of the workpiece is processed, the auxiliary ring 8 is lifted by the lifting cylinder 7 to a position where the workpiece is suitable for clamping, and then the clamping gear ring 17 rotates to drive the external gear 16 to rotate, thereby driving the clamping arm 15 to rotate toward the center direction of the auxiliary ring 8 until the end of the clamping arm 15 clamps the workpiece, and the mounting plate 6 is released so that the workpiece can be pulled out, and then the lifting cylinder 7 continues to move upward, driving the auxiliary ring 8 together with the workpiece clamped by the clamping arm 15 to move upward until the workpiece can be turned over without hindrance. The height of rotation is sufficient. At this time, the positioning gear 13 is driven to rotate by the reversing motor 12, which in turn drives the reversing gear 11 to rotate, so that the auxiliary ring 8 flips over. At this time, the rotating shaft 10 rotates in the mounting ring 9, and the workpiece follows the flipping of the auxiliary ring 8, so that the other end faces downward, and then the lifting cylinder 7 falls, and the workpiece is reinserted into the middle of the mounting disk 6, and the mounting disk 6 is started to clamp the workpiece, and then the clamping gear ring 17 is reversed, the clamping arm 15 is retracted, and the lifting cylinder 7 is further retracted, so that the auxiliary ring 8 stops at the mounting disk 6, and the top surfaces of the two are flush, thereby realizing automatic flipping of the workpiece and double-head processing without manual assistance, saving time and improving efficiency; if necessary, the lifting cylinder 7 can be used to raise the middle of the clamped workpiece as an auxiliary support to improve the rotation accuracy of the workpiece.

[0022] Preferably, both ends of the processing table 4 are fixedly connected with lower hanging plates 18, the lower hanging plates 18 are located in the movable slide rail 3 and the two are slidably matched, and a movable lead screw 19 is rotatably installed in the movable slide rail 3, and the movable lead screw 19 passes through the lower hanging plate 18 and is threadedly matched therewith.

[0023] The processing table 4 is driven to move by the movable lead screw 19, which is more accurate and stable, and the processing table 4 covers the movable lead screw 19 and the movable slide rail 3 underneath, effectively protecting the transmission stability.

[0024] Preferably, a self-rotating wheel 20 is installed at the bottom of the processing table 4, and the self-rotating wheel 20 is used to drive the installation cylinder 5 to rotate. The self-rotating wheel 20 and the installation cylinder 5 are gear-driven.

[0025] The motor drives the rotating disk 20 to rotate, and the gear meshing causes the mounting cylinder 5 to rotate, thereby driving the mounting plate 6 to rotate, and realizing the rotation of the workpiece, thereby meeting the processing requirements.

[0026] Preferably, a yield window 21 is provided at the top of the auxiliary ring 8, the end of the clamping arm 15 is rotatably connected to an adaption shaft 22, the top of the adaption shaft 22 is fixedly connected to a group of clamping wheels 23, and the clamping wheels 23 are normally located at the yield window 21.

[0027] Preferably, a V-shaped frame 24 is fixedly connected to the top of the adaptable shaft 22 , and the clamping wheels 23 are located at both ends of the V-shaped frame 24 .

[0028] Preferably, the top of the clamping arm 15 is rotatably connected to a reversing shaft 25 and two transition wheels 26, a transmission chain 27 is sleeved between the clamping shaft 37 and the reversing wheels, the transmission chain 27 bypasses the two transition wheels 26 and is located in the accommodating ring 14, and the top of the reversing shaft 25 is fixedly connected to an outer gear ring 28, which engages with the adaptation shaft 22.

[0029] By providing a clamping wheel 23 at the end of the clamping arm 15, the clamping fixing point with the workpiece is increased during clamping, which is beneficial to the stable clamping of the workpiece.

[0030] When the clamping arm 15 is driven to rotate outward by the clamping gear ring 17, the reversing shaft 25 is driven to rotate through the rotation of the clamping shaft 37 via chain transmission, and then the adapting shaft 22 is meshed with the gear of the adapting shaft 22 through the outer gear ring 28, so that the adapting shaft 22 rotates following the rotation of the clamping arm 15, so that the center of the V-shaped frame 24 is always facing the center of the auxiliary ring 8, so that each set of clamping wheels 23 can be evenly distributed and clamp the workpiece in the positive direction, which is beneficial to the stability of the workpiece when it is flipped.

[0031] Preferably, the mounting disk 6 is a three-jaw chuck, and the auxiliary ring 8 can be sleeved outside the mounting disk 6 with the top flush with the mounting disk 6 .

[0032] Preferably, a cross slide 29 is installed in the vertical plate 2, and a mounting block 30 is fixedly connected to the output end of the cross slide 29, and a tool holder 31 is fixedly connected to the end of the mounting block 30, and a processing spindle 32 is rotatably connected in the tool holder 31. The movement of the tool holder 31 and the processing spindle 32 in the X and Z directions is realized by the cross slide 29, and the angle change of the processing spindle 32 is realized by the tool holder 31, so as to realize multi-axis precision processing in coordination with the movement of the processing table 4 and the rotation of the mounting plate 6, and meet various parts processing requirements.

[0033] Preferably, a casing 33 is fixedly connected to the top of the base plate 1, and a plurality of protective plates 34 are sequentially stacked and slidably provided on both sides of the casing 33. The innermost protective plate 34 is fixedly connected to both sides of the mounting block 30, and sealing plates 35 are sequentially stacked and slidably provided on the upper and lower sides of the casing 33. The sealing plates 35 are located between the innermost protective plates 34 and the innermost sealing plates 35 are fixedly connected to the upper and lower sides of the mounting block 30.

[0034] When the tool holder 31 moves, the blocking plate 35 and the protective plate 34 follow the movement to fold or stretch, thereby keeping the cross slide 29 inside, avoiding machining debris or other factors that affect the smooth movement of the machining spindle 32 and ensuring that the movement accuracy is not disturbed.

[0035] Preferably, a plurality of cover plates 36 are sequentially stacked and slidably provided on the top of the base plate 1 , the cover plates 36 are distributed on both sides of the base plate 1 and the innermost cover plates 36 are fixedly connected to both sides of the processing table 4 , and the movable slide rail 3 is located below the cover plates 36 .

[0036] Similarly, the cover plate 36 also follows the movement of the processing table 4 with one side folded and the other side stretched and unfolded, thereby protecting the movable slide rail 3 during the entire processing process.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Five-axis CNC machine tool, characterized by: The invention comprises a bottom plate (1) and a vertical plate (2), wherein the top of the bottom plate (1) is fixedly connected to a movable slide rail (3), a processing table (4) is slidably connected inside the movable slide rail (3), a mounting cylinder (5) is rotatably connected to the bottom of the processing table (4), a mounting plate (6) is fixedly connected inside the mounting cylinder (5), a lifting cylinder (7) is installed inside the processing table (4), an auxiliary ring (8) is provided on the top of the processing table (4), an mounting ring (9) is fixedly connected to the end of the lifting cylinder (7), a rotating shaft (10) is fixedly connected to both sides of the auxiliary ring (8), the rotating shaft (10) is located inside the mounting ring (9), and the two are rotatably connected, a reversing gear (11) is fixedly connected to the end of the rotating shaft (10), and the lifting cylinder (7) is fixedly connected to the mounting ring (9). A reversing motor (12) is fixedly mounted on the output end of the lifting cylinder (7), and a positioning gear (13) is fixedly connected to the output end of the reversing motor (12), and the positioning gear (13) meshes with the reversing gear (11). The auxiliary ring (8) is sleeved outside the mounting plate (6), and a receiving ring (14) is provided inside the auxiliary ring (8). A plurality of clamping shafts (37) are rotatably connected inside the receiving ring (14). A clamping arm (15) and an external gear (16) are fixedly connected outside the clamping shaft (37), and a clamping gear ring (17) is rotatably connected inside the receiving ring (14), and the clamping gear ring (17) meshes with the external gear (16). The external gear (16) is located below the clamping arm (15).

2. The five-axis CNC machine tool according to claim 1, characterized in that: The two ends of the processing table (4) are fixedly connected with lower hanging plates (18), the lower hanging plates (18) are located in the movable slide rail (3) and the two are slidably matched, and a movable lead screw (19) is rotatably installed in the movable slide rail (3), and the movable lead screw (19) passes through the lower hanging plate (18) and is threadedly matched therewith.

3. The five-axis CNC machine tool according to claim 1, characterized in that: A self-rotating wheel (20) is installed at the bottom of the processing table (4), and the self-rotating wheel (20) is used to drive the installation cylinder (5) to rotate. The self-rotating wheel (20) and the installation cylinder (5) are driven by gears.

4. The five-axis CNC machine tool according to claim 1, characterized in that: A clearance window (21) is provided at the top of the auxiliary ring (8); an adaption shaft (22) is rotatably connected to the end of the clamping arm (15); a group of clamping wheels (23) are fixedly connected to the top of the adaption shaft (22); and the clamping wheels (23) are normally located at the clearance window (21).

5. The five-axis CNC machine tool according to claim 4, characterized in that: A V-shaped frame (24) is fixedly connected to the top of the adaptable shaft (22), and the clamping wheels (23) are located at both ends of the V-shaped frame (24).

6. The five-axis CNC machine tool according to claim 4, characterized in that: The top of the clamping arm (15) is rotatably connected to a reversing shaft (25) and two transition wheels (26); a transmission chain (27) is sleeved between the clamping shaft (37) and the reversing wheels; the transmission chain (27) bypasses the two transition wheels (26) and is located in the accommodating ring (14); the top of the reversing shaft (25) is fixedly connected to an outer gear ring (28); the outer gear ring (28) is meshed with the adapting shaft (22).

7. The five-axis CNC machine tool according to claim 1, characterized in that: The mounting plate (6) is a three-jaw chuck, and the auxiliary ring (8) can be sleeved outside the mounting plate (6) with the top thereof flush with the mounting plate (6).

8. The five-axis CNC machine tool according to claim 1, characterized in that: A cross slide rail (29) is installed in the vertical plate (2); a mounting block (30) is fixedly connected to the output end of the cross slide rail (29); a tool holder (31) is fixedly connected to the end of the mounting block (30); and a machining spindle (32) is rotatably connected to the tool holder (31).

9. The five-axis CNC machine tool according to claim 8, characterized in that: The top of the bottom plate (1) is fixedly connected to a housing (33); a plurality of protective plates (34) are sequentially stacked and slidably provided on both sides of the housing (33); the innermost protective plate (34) is fixedly connected to both sides of the mounting block (30); and blocking plates (35) are sequentially stacked and slidably provided on the upper and lower sides of the housing (33); the blocking plates (35) are located between the innermost protective plates (34); and the innermost blocking plate (35) is fixedly connected to both sides of the mounting block (30).

10. The five-axis CNC machine tool according to claim 1, characterized in that: A plurality of cover plates (36) are sequentially stacked and slidably arranged on the top of the bottom plate (1), the cover plates (36) being distributed on both sides of the bottom plate (1) and the innermost cover plates (36) being fixedly connected to both sides of the processing table (4), and the movable slide rails (3) being located below the cover plates (36).

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