Dual-drive (DD) five-axis rotary table

Abstract

The utility model discloses a kind of double-drive DD five-axis rotary workbench, it is related to numerical control equipment technical field, including first inclined shaft, the one end of first inclined shaft is rotatably connected with rotating installation shaft, rotating installation shaft is rotatably connected with second inclined shaft on the side away from first inclined shaft, first inclined shaft and second inclined shaft are all included shell, motor stator is mounted in the inside of each shell, front bearing is installed in the inner wall of shell, the one side of front bearing is fixedly connected with rotating shaft, front end cover is installed in the outer wall of shell;In the utility model, utilize double-motor drive through the collaborative work of two motors, torque output is added, sufficient power is provided for inclined shaft, ensure that workpiece can be driven to incline movement stably, efficiently under various working conditions, meet the demand of complex, high-strength processing task, make component have more extensive work applicability.

Description

Technical Field

[0001] This utility model relates to the field of CNC equipment technology, specifically a dual-drive DD five-axis rotary table. Background Technology

[0002] As modern manufacturing develops towards higher precision and complexity, fields such as aerospace, automotive molds, energy equipment, and precision instruments have placed high demands on the machining accuracy and surface quality of parts. The DD five-axis rotary table serves as a device for achieving high-precision machining of complex curved surfaces and polyhedral parts.

[0003] In the existing technology, the existing DD five-axis rotary table is usually composed of a tilt axis, a rotary axis, and a tailstock. The braking structure is mostly a disc brake structure. When machining heavy and large workpieces, the tilt axis has a high load rate because the tailstock does not output power. The tilt axis rotation accuracy will be reduced, which will affect the machining quality. Furthermore, under the same braking torque, the disc brake structure occupies a large axial space, which increases the size of the rotary table.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a dual-drive DD five-axis rotary table to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a dual-drive DD five-axis rotary worktable, including a first tilting shaft, one end of which is rotatably connected to a rotary mounting shaft, and a second tilting shaft rotatably connected to the side of the rotary mounting shaft away from the first tilting shaft. Both the first and second tilting shafts include housings, and a motor stator is installed inside each housing. A front bearing is installed on one inner wall of the housing, and a rotating shaft is fixedly connected to one side of the front bearing. A front end cover is installed on one outer wall of the housing, and a mounting seat is also installed on the inner wall of the housing. A rear bearing is installed on the outer wall of the mounting seat. A rotor adapter ring is installed on the side of the rotating shaft away from the mounting seat, and a motor rotor is installed on the outer wall of the rotor adapter ring. A rear cover is installed on the outer wall of the housing away from the front end cover. A clamp is fitted on the outer wall of the mounting seat. A brake flange is installed on one side of the rotating shaft, and an encoder is fixedly connected to the end of the rotating shaft away from the front end cover.

[0007] Furthermore, a rotating mounting disc is rotatably connected to the top of the rotating mounting shaft, and multiple mounting grooves are formed on the top of the rotating mounting disc.

[0008] Furthermore, a meshing assembly is installed inside the rotary mounting shaft. The meshing assembly includes a drive motor installed inside the rotary mounting shaft. A turntable is installed at the output end of the drive motor. A rotating rod is rotatably connected to the side of the turntable away from the center. A sliding plate is rotatably connected to the end of the rotating rod away from the turntable. Two mounting blocks are installed on the side of the sliding plate away from the rotating rod. The adjacent side of the two mounting blocks is an inclined surface. A gear plate is meshed with the two mounting blocks through the two mounting blocks. Multiple connecting rods are installed at the bottom end of the gear plate. A rotating rod is fixedly connected to the gear plate through the multiple connecting rods.

[0009] Furthermore, the bottom end of the rotating mounting plate is rotatably connected to the top end of the rotating mounting shaft, and the end of the rotating rod away from the rotating mounting plate is rotatably connected to the inner bottom wall of the rotating mounting shaft.

[0010] Furthermore, multiple meshing blocks are installed at the top of the gear disc, and the gear disc is meshed with the mounting blocks through the multiple meshing blocks. When the sliding plate slides, the two mounting blocks mesh intermittently with the gear disc.

[0011] Furthermore, the side of the drive motor away from the output end is fixedly connected to the inside of the rotating mounting shaft, and a fixed column is installed on the top of the turntable away from the center. The turntable is rotatably connected to the rotating rod through the fixed column.

[0012] Furthermore, the outer wall of the sliding plate and the inner wall of the rotating mounting shaft are slidably connected, and the two mounting blocks are made of wear-resistant material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Single-motor drives may experience a drop in speed, reduced processing efficiency, or even failure to drive normally due to insufficient torque. Dual-motor drives, on the other hand, work together to superimpose torque output, providing sufficient power to the tilting shaft. This ensures stable and efficient driving of the workpiece for tilting motion under various working conditions, meeting the needs of complex and high-intensity processing tasks and giving the component a wider range of working applicability.

[0015] 2. While achieving the same braking torque, the caliper brake has a significantly smaller overall size compared to traditional brake devices. This avoids space conflicts for internal motor components caused by an excessively large brake device, thus optimizing the internal space layout of the motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a dual-drive DD five-axis rotary table;

[0017] Figure 2 This is a side sectional view of a dual-drive DD five-axis rotary table.

[0018] Figure 3This is a side view of the meshing assembly in a dual-drive DD five-axis rotary table.

[0019] Figure 4 A schematic diagram of the overall front structure of the meshing assembly in a dual-drive DD five-axis rotary table;

[0020] Figure 5 This is a schematic diagram of the back structure of the meshing assembly in a dual-drive DD five-axis rotary table.

[0021] In the diagram: 1. Front bearing; 2. Front end cover; 3. Housing; 4. Rotor adapter ring; 5. Motor stator; 6. Motor rotor; 7. Rear cover; 8. Clamp; 9. Brake flange; 10. Rear bearing; 11. Mounting base; 12. Encoder; 13. Rotating shaft; 14. First tilting shaft; 15. Rotary mounting shaft; 16. Second tilting shaft; 17. Drive motor; 18. Turntable; 19. Rotating rod; 20. Sliding plate; 21. Mounting block; 22. Gear plate; 23. Rotating rod; 24. Rotary mounting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5This utility model provides a technical solution: a dual-drive DD five-axis rotary table, including a first tilting axis 14, one end of which is rotatably connected to a rotary mounting shaft 15, and the side of the rotary mounting shaft 15 away from the first tilting axis 14 is rotatably connected to a second tilting axis 16. Both the first tilting axis 14 and the second tilting axis 16 include a housing 3. The rotary mounting shaft 15 connects the first tilting axis 14 and the second tilting axis 16, is located in the middle of them, and can rotate around its own axis to achieve horizontal rotation of the workpiece. The second tilting axis 16 is symmetrically arranged with the first tilting axis 14 and is used for... The first tilting shaft 14 cooperates with each other to realize the tilting movement of the workpiece. The housing 3 is the main structure of the second tilting shaft 16 and the first tilting shaft 14, providing a mounting base and protection function, and ensuring the stability and sealing of the internal components. A motor stator 5 is installed inside each housing 3. A front bearing 1 is installed on one inner wall of the housing 3. A rotating shaft 13 is fixedly connected to one side of the front bearing 1. A front end cover 2 is installed on one outer wall of the housing 3. A mounting base 11 is also installed on the inner wall of the housing 3. A rear bearing 10 is installed on the outer wall of the mounting base 11. The front bearing 1 and the rear bearing 10 cooperate with each other to support the rotating shaft 1. 3. To ensure smooth rotation of the rotating shaft 13 and reduce friction and vibration, a rotor adapter ring 4 is installed on the side of the rotating shaft 13 away from the mounting base 11. A motor rotor 6 is installed on the outer wall of the rotor adapter ring 4. The motor stator 5 and the motor rotor 6 are combined to form a component that directly drives the rotating shaft 13 to rotate, achieving tilting motion and improving dynamic response speed and positioning accuracy. A rear cover 7 is installed on the outer wall of the housing 3 away from the front cover 2. A clamp 8 is fitted on the outer wall of the mounting base 11. The clamp 8 is used to lock the rotating shaft 13 when needed, preventing accidental rotation of the rotating shaft 13 and improving the safety of the component during operation. To prevent damage caused by rotation, a brake flange 9 is installed on one side of the rotating shaft 13. The brake flange 9 is used to clamp the 8 and provide additional braking torque to enhance the locking braking effect. An encoder 12 is fixedly connected to the end of the rotating shaft 13 away from the front cover 2. The encoder 12 provides real-time feedback on the rotation angle and speed of the rotating shaft 13 to achieve closed-loop control, which improves the positioning accuracy and repeatability of the first tilting shaft 14 and the second tilting shaft 16. The installation of the first tilting shaft 14 and the second tilting shaft 16 makes the load evenly distributed, reduces the load rate on one side, and improves the reliability and service life of the components.

[0024] See Figure 1A rotating mounting disk 24 is rotatably connected to the top of the rotating mounting shaft 15. The rotating mounting shaft 15 is an intermediate transmission component located between the first inclined shaft 14 and the second inclined shaft 16, enabling horizontal rotation. It can rotate continuously 360° around the connection point, driving the rotating mounting disk 24 to rotate synchronously. The top of the rotating mounting disk 24 has multiple mounting grooves, which are formed by splicing two rectangles from top to bottom to form a stepped structure. The overall length of the upper and lower parts is 24, the length ratio of the lower rectangle is 10, the width ratio of the upper rectangle is 14, and the width ratio of the lower rectangle is 25. Driven by the rotating mounting shaft 15, the rotating mounting disk 24 achieves horizontal rotation, with the rotation angle consistent with that of the rotating mounting shaft 15. The mounting grooves are used for the quick installation and removal of workpiece fixtures, improving processing efficiency.

[0025] See Figure 3 , Figure 4 , Figure 5 A meshing assembly is installed inside the rotary mounting shaft 15. This assembly includes a drive motor 17 installed inside the rotary mounting shaft 15. A turntable 18 is mounted at the output end of the drive motor 17. After the drive motor 17 is started, the turntable 18 rotates around the output end of the drive motor 17. A rotating rod 19 is rotatably connected to the side of the turntable 18 furthest from the center. The rotating rod 19 reciprocates with the rotation of the turntable 18. A sliding plate 20 is rotatably connected to the end of the rotating rod 19 furthest from the turntable 18. Driven by the rotating rod 19, the sliding plate 20 moves along the inside of the rotary mounting shaft 15. The guide rail makes linear reciprocating motion. Two mounting blocks 21 are installed on the side of the sliding plate 20 away from the rotating rod 19. The adjacent side of the two mounting blocks 21 is an inclined surface. The sliding plate 20 is connected to the gear plate 22 through the meshing of the two mounting blocks 21. The mounting blocks 21 move linearly synchronously with the sliding plate 20 and mesh with the gear plate 22 through the inclined surface. Under the action of the inclined surface of the mounting blocks 21, the gear plate 22 rotates. Multiple connecting rods are installed at the bottom of the gear plate 22. The gear plate 22 is fixedly connected to the rotating rod 23 through the multiple connecting rods. The rotating rod 23 rotates synchronously with the rotation of the gear plate 22.

[0026] See Figure 4 The drive motor 17 is fixedly connected to the inside of the rotating mounting shaft 15 on the side away from the output end. A fixed column is installed on the top of the turntable 18 on the side away from the center. The turntable 18 is rotatably connected to the rotating rod 19 through the fixed column. The rotating rod 19 can be directly connected to the turntable 18 and the sliding plate 20 to reduce energy loss. The sliding plate 20 converts the swing motion of the rotating rod 19 into the rotation motion of the gear plate 22. The meshing transmission is achieved through the inclined surface of the mounting block 21, which improves the smoothness and reliability of the motion and prevents reverse rotation during operation.

[0027] See Figure 4The top of the toothed disc 22 is equipped with multiple meshing blocks. The toothed disc 22 is meshed with the mounting block 21 through the multiple meshing blocks. When the sliding plate 20 slides, the two mounting blocks 21 mesh with the toothed disc 22 intermittently. The meshing blocks ensure the accuracy and stability of the meshing. For example, when machining a workpiece with multiple machining surfaces, it is necessary to periodically rotate the mounting disc 24 so that the different surfaces of the workpiece are aligned with the machining tool in sequence, and to ensure that reverse rotation is prevented.

[0028] Working principle: The rotary mounting shaft 15 is an intermediate transmission component between the first tilting shaft 14 and the second tilting shaft 16. It can rotate continuously around the connection point, driving the rotary mounting plate 24 to rotate synchronously, realizing the horizontal rotational movement of the workpiece. The stepped mounting groove at the top of the rotary mounting plate 24 facilitates the quick installation and disassembly of the workpiece fixture, improving processing efficiency. The first tilting shaft 14 and the second tilting shaft 16 are symmetrically arranged, and the housing 3 is the main structure. The motor stator 5 is installed inside each housing 3, and the motor rotor 6 is installed on one side of the rotating shaft 13. The combination of the motor stator 5 and the motor rotor 6 forms a component that directly drives the rotating shaft 13 to rotate. The front bearing 1 and the rear bearing 10 cooperate to support the rotating shaft 13, ensuring smooth rotation and reducing friction and vibration, thereby realizing the tilting movement of the workpiece. The dual drive can provide greater torque, improve dynamic response speed and positioning accuracy, and the brake flange 9 and clamp 8 are smaller in size under the same torque.

[0029] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dual-drive (DD) five-axis rotary table, comprising a first tilting axis (14), characterized in that: One end of the first tilting shaft (14) is rotatably connected to a rotating mounting shaft (15). The side of the rotating mounting shaft (15) away from the first tilting shaft (14) is rotatably connected to a second tilting shaft (16). Both the first tilting shaft (14) and the second tilting shaft (16) include a housing (3). A motor stator (5) is installed inside each housing (3). A front bearing (1) is installed on one inner wall of one side of the housing (3). A rotating shaft (13) is fixedly connected to one side of the front bearing (1). A front end cover (2) is installed on one outer wall of one side of the housing (3). The inner wall is also equipped with a mounting base (11), the outer wall of the mounting base (11) is equipped with a rear bearing (10), the side of the rotating shaft (13) away from the mounting base (11) is equipped with a rotor adapter ring (4), the outer wall of the rotor adapter ring (4) is equipped with a motor rotor (6), the outer wall of the housing (3) away from the front end cover (2) is equipped with a rear cover (7), the outer wall of the mounting base (11) is fitted with a clamp (8), the side of the rotating shaft (13) is equipped with a brake flange (9), and the end of the rotating shaft (13) away from the front end cover (2) is fixedly connected to an encoder (12).

2. The dual-drive DD five-axis rotary table as described in claim 1, characterized in that: The top end of the rotating mounting shaft (15) is rotatably connected to a rotating mounting disk (24), and the top end of the rotating mounting disk (24) has multiple mounting grooves.

3. The dual-drive DD five-axis rotary table as described in claim 2, characterized in that: The rotating mounting shaft (15) is equipped with a meshing assembly, which includes a drive motor (17) installed inside the rotating mounting shaft (15). A turntable (18) is installed at the output end of the drive motor (17). A rotating rod (19) is rotatably connected to the side of the turntable (18) away from the center. A sliding plate (20) is rotatably connected to the end of the rotating rod (19) away from the turntable (18). Two mounting blocks (21) are installed on the side of the sliding plate (20) away from the rotating rod (19). The adjacent side of the two mounting blocks (21) is an inclined surface. The sliding plate (20) is meshed with a gear plate (22) through the two mounting blocks (21). Multiple connecting rods are installed at the bottom end of the gear plate (22). A rotating rod (23) is fixedly connected to the gear plate (22) through the multiple connecting rods.

4. The dual-drive DD five-axis rotary table as described in claim 3, characterized in that: The bottom end of the rotating mounting plate (24) is rotatably connected to the top end of the rotating mounting shaft (15), and the end of the rotating rod (23) away from the rotating mounting plate (24) is rotatably connected to the inner bottom wall of the rotating mounting shaft (15).

5. A dual-drive DD five-axis rotary table as described in claim 4, characterized in that: The drive motor (17) is fixedly connected to the inside of the rotating mounting shaft (15) on the side away from the output end. A fixed column is installed on the top of the turntable (18) on the side away from the center. The turntable (18) is rotatably connected to the rotating rod (19) through the fixed column.

6. The dual-drive DD five-axis rotary table as described in claim 5, characterized in that: The outer wall of the sliding plate (20) is slidably connected to the inner wall of the rotating mounting shaft (15), and the two mounting blocks (21) are made of wear-resistant material.

7. A dual-drive DD five-axis rotary table as described in claim 6, characterized in that: The top of the toothed disc (22) is equipped with multiple meshing blocks. The toothed disc (22) is meshed with the mounting block (21) through the multiple meshing blocks. When the sliding plate (20) slides, the two mounting blocks (21) mesh with the toothed disc (22) intermittently.

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