Semi-integrated double-direct-drive AC (Alternating Current) double-swing head

Abstract

The utility model relates to the technical field of AC double swing heads, and discloses a semi-integrated double-direct-drive AC double swing head which comprises an A-axis part, a C-axis part installed on the top of the A-axis part, an auxiliary A-axis part arranged on one side of the A-axis part, a box body installed between the auxiliary A-axis part and the A-axis part, and an electric main shaft part arranged at the bottom of the box body. An outer rotor is arranged at the bottom in the auxiliary A shaft part, a crossed roller bearing is arranged at the top of the outer rotor, a bearing gland is arranged at the top of the crossed roller bearing, and the outer wall of the A shaft part is sleeved with an A main shaft shell; through the arrangement of the semi-integrated double-direct-drive structure, a half of the A shaft in the double-swing head is integrated as a main body part, rigidity and precision are guaranteed, the other half of the A shaft is of a split structure, installation and debugging are convenient, meanwhile, the A shaft adopts a double-drive mode, the drive torque is two times that of a single drive, and therefore motion stability and precision are guaranteed. And the method is suitable for high-requirement processing tasks.

Description

Technical Field

[0001] The utility model relates to the technical field of AC double-swing heads, in particular to a semi-integrated double-direct-drive AC double-swing head. Background Art

[0002] The dual direct-drive AC dual-swing head is a high-precision, high-efficiency motion control device, mainly used in CNC machine tools and automation equipment. It uses dual direct-drive motors to drive the two swing heads, which can achieve complex motion trajectories and flexible processing methods, allowing the tool to cut at different angles and positions, improving processing flexibility and production efficiency; at the same time, the direct-drive motor has high responsiveness and low friction characteristics.

[0003] The A-axis of the existing double swing head is usually a split or integrated structure. The split structure has a large cumulative error due to the large number of parts and poor rigidity, but it is easy to assemble and debug. The integrated structure has a small cumulative error and high rigidity, but it is more difficult to process and inconvenient to assemble and debug. Therefore, a semi-integrated dual direct-drive AC double swing head is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a semi-integrated dual direct drive AC dual swing head to solve the problem in the background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A semi-integrated dual direct-drive AC double swing head includes an A-axis portion, a C-axis portion is installed on the top of the A-axis portion, a secondary A-axis portion is provided on one side of the A-axis portion, a box is installed between the secondary A-axis portion and the A-axis portion, an electric spindle portion is provided at the bottom of the box, an outer rotor is provided at the bottom of the secondary A-axis portion, a cross-roller bearing is provided on the top of the outer rotor, a bearing cover is provided on the top of the cross-roller bearing, and an A-spindle housing is provided on the outer wall of the A-axis portion.

[0007] Preferably, a sealing cover is installed on one side of the secondary A-axis part, and a rotating shaft is installed on the top inside the secondary A-axis part, wherein the secondary A-axis part includes a motor, a swing head structure, a sensor, a bracket and a connector. The motor mainly provides high precision and high response. The swing head structure can rotate around a certain axis to perform cutting or processing tasks. The sensor is used to monitor the position and movement state of the swing head to ensure precise control. The bracket and connector are used to fix and connect the various components to ensure structural stability.

[0008] Preferably, a spindle box is provided on the outside of the rotating shaft, and a stator is provided on the top of the rotating shaft. An embracing brake ring is installed on the top of the interior of the secondary A-axis portion. Mounting blocks are provided on both sides of the embracing brake ring (not shown in the figure), and threaded holes are provided inside the two mounting blocks. The spindle box includes a spindle, a direct-drive motor, bearings, and a cooling system. The motor directly drives the spindle to rotate through electricity. The control system adjusts the motor's speed and torque according to the machining program to achieve different cutting requirements. The rotation of the spindle is supported by bearings to ensure high-precision rotation. The cooling system operates continuously during the machining process to maintain the spindle temperature within a safe range and prevent performance degradation due to overheating.

[0009] Preferably, a connecting shaft is mounted on the top of the C-axis, with a reinforcement sleeve attached to the outside of the connecting shaft. A reinforcement bolt is mounted on the top of the reinforcement sleeve. The C-axis comprises a C-axis motor, a rotating platform, an encoder, and a support structure. The C-axis operates by directly driving the rotating platform to achieve a high degree of rotation via a C-axis direct-drive motor. The control system adjusts the motor's speed and direction in real time according to the machining program to achieve precise positioning and cutting of the workpiece. The encoder continuously provides feedback on the C-axis's rotational position, ensuring the accuracy and stability of the motion. The workpiece on the rotating platform can perform complex cutting operations with the spindle's cutting tool, improving machining flexibility and precision.

[0010] Preferably, two connecting sleeves are provided on the top of the A-axis part and the auxiliary A-axis part, and the two connecting sleeves are located at the bottom outside the C-axis part. Through the setting of the connecting sleeves, the A-axis part and the auxiliary A-axis part are more stable during installation and will not fall off easily.

[0011] Preferably, a connecting groove is provided at the bottom of the electric spindle part, a detachable maintenance cover is connected to one side of the box body, and a control handle is installed on one side of the A-axis part and the auxiliary A-axis part.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] 1. This utility model adopts the setting of semi-integrated dual direct drive structure, so that the A axis of the double swing head adopts half of the integrated structure as the main part to ensure rigidity and precision, and the other half adopts a split structure to facilitate installation and debugging. At the same time, the A axis adopts a dual drive mode, and the driving torque is twice that of a single drive, thereby ensuring the smoothness and precision of the movement, which is suitable for high-demand processing tasks;

[0014] 2. The utility model adopts an outer rotor structure through the setting of the A-axis stator. The brake ring realizes the braking function by locking the outer rotor. Since the outer diameter of the outer rotor is usually larger, it has a greater braking force. At the same time, compared with the conventional brake ring, only one end is thicker and can be screwed. The brake ring of this device is fixed with screws at both ends, which has better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of the utility model

[0016] Figure 2 It is a side view of the entire utility model.

[0017] Among them: 1. A spindle housing; 2. Encircling brake ring; 3. Stator; 4. Rotating shaft; 5. Sealing cover; 6. Spindle box; 7. Bearing cover; 8. Cross roller bearing; 9. Outer rotor; 10. A-axis part; 11. C-axis part; 12. Auxiliary A-axis part; 13. Box; 14. Electric spindle part; 15. Reinforcement sleeve; 16. Connecting sleeve. DETAILED DESCRIPTION

[0018] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0019] Please refer to Figure 1 and Figure 2 , a semi-integrated dual direct-drive AC double swing head, an A-axis part 10, a C-axis part 11 is installed on the top of the A-axis part 10, a sub-A-axis part 12 is arranged on one side of the A-axis part 10, a box body 13 is installed between the sub-A-axis part 12 and the A-axis part 10, an electric spindle part 14 is arranged at the bottom of the box body 13, an outer rotor 9 is arranged at the bottom of the inner part of the sub-A-axis part 12, a cross-roller bearing 8 is arranged on the top of the outer rotor 9, a bearing pressure cover 7 is arranged on the top of the cross-roller bearing 8, an A-spindle housing 1 is provided on the outer wall of the A-axis part 10, a sealing cover 5 is installed on one side of the sub-A-axis part 12, and a rotating shaft 4 is installed on the top of the inner part of the sub-A-axis part 12, a connecting groove is provided at the bottom of the electric spindle part 14, a detachable maintenance cover is connected to one side of the box body 13, and a control handle is installed on one side of the A-axis part 10 and the sub-A-axis part 12.

[0020] The device is composed of an A-axis portion 10, a C-axis portion 11, a secondary A-axis portion 12, a housing 13, and an electric spindle portion 14. The A-axis portion 10 and the secondary A-axis portion 12 are integrated into one to form the A-axis. The A-axis and the connecting block between the C-axis are integrated into an integrated structure to form the A-spindle housing 1. The A-axis portion 10 serves as the main rigid bearing body, and the secondary A-axis portion 12 serves as the supporting portion, which is adjustable. Therefore, it is possible to reduce the cumulative error of parts and improve rigidity. At the same time, the adjustable feature facilitates user use, thereby increasing the practicality of the present invention.

[0021] When in use, the secondary A-axis part 12 drives the swing head to rotate through a direct-drive motor. The motor is directly connected to the swing head, reducing the friction and transmission loss in the traditional transmission system. The control system adjusts the motor speed and angle in real time according to the set processing program to achieve precise motion control. The sensor continuously feeds back the position of the swing head to ensure accuracy and stability during the processing.

[0022] Please also refer to Figure 1 and Figure 2 A spindle box 6 is provided on the outside of the rotating shaft 4, and a stator 3 is provided on the top of the rotating shaft 4, an embracing brake ring 2 is installed on the top of the inside of the secondary A-axis part 12, a connecting shaft is installed on the top of the C-axis part 11, a reinforcement sleeve 15 is provided on the outside of the connecting shaft, and a reinforcement bolt is installed on the top of the reinforcement sleeve 15. Two connecting sleeves 16 are provided on the top of the A-axis part 10 and the secondary A-axis part 12, and the two connecting sleeves 16 are located at the bottom outside the C-axis part 11.

[0023] The A spindle housing 1 is installed with a stator 3, and a cross roller bearing 8 is installed on the stator 3. The cross roller bearing 8 is fixed by a bearing cover 7. The rotating shaft 4 passes through the inner hole of the cross roller bearing 8, and the inner ring is interference fit. The front end of the rotating shaft 4 is installed with a spindle box 6, and the front end of the spindle box 6 is installed with an outer rotor 9. Based on this, when the stator 3 is energized, the outer rotor 9 drives the spindle box 6 to rotate, and the embracing brake ring 2 is installed on the A spindle housing 1, and the inner diameter is clearance-matched with the outer rotor 9. When oil pressure is passed, the embracing brake ring 2 deforms and holds the outer rotor 9 tightly to realize the braking function. Since the outer diameter of the outer rotor 9 is usually larger, it has a larger braking force, which makes the device more stable when braking.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-integrated dual direct drive AC dual swing head, comprising an A-axis portion (10), characterized in that: A C-axis portion (11) is installed on the top of the A-axis portion (10), a secondary A-axis portion (12) is provided on one side of the A-axis portion (10), a box body (13) is installed between the secondary A-axis portion (12) and the A-axis portion (10), an electric spindle portion (14) is provided at the bottom of the box body (13), an outer rotor (9) is provided at the bottom inside the secondary A-axis portion (12), a cross roller bearing (8) is provided at the top of the outer rotor (9), a bearing pressure cover (7) is provided at the top of the cross roller bearing (8), and an A spindle housing (1) is provided on the outer wall of the A-axis portion (10).

2. The semi-integrated dual direct drive AC dual swing head according to claim 1, characterized in that: A sealing cover (5) is installed on one side of the auxiliary A-axis portion (12), and a rotating shaft (4) is installed on the top inside the auxiliary A-axis portion (12).

3. The semi-integrated dual direct drive AC dual swing head according to claim 2, characterized in that: A spindle box (6) is provided outside the rotating shaft (4), a stator (3) is provided on the top of the rotating shaft (4), and an embracing brake ring (2) is installed on the top inside the auxiliary A-axis part (12).

4. The semi-integrated dual direct drive AC dual swing head according to claim 1, characterized in that: A connecting shaft is installed on the top of the C-axis part (11), a reinforcing sleeve (15) is provided on the outside of the connecting shaft, and a reinforcing bolt is installed on the top of the reinforcing sleeve (15).

5. The semi-integrated dual direct drive AC dual swing head according to claim 1, characterized in that: Two connecting sleeves (16) are provided on the top of the A-axis portion (10) and the auxiliary A-axis portion (12), and the two connecting sleeves (16) are located at the bottom outside the C-axis portion (11).

6. The semi-integrated dual direct drive AC dual swing head according to claim 1, characterized in that: A connecting groove is provided at the bottom of the electric main shaft part (14), a detachable maintenance cover is connected to one side of the box body (13), and a control handle is installed on one side of the A-axis part (10) and the auxiliary A-axis part (12).

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