Multi-axis combined servo system

Abstract

The utility model relates to the technical field of servo systems, in particular to a multi-axis combined servo system, which comprises an X-direction servo driving assembly, a Y-direction servo driving assembly and a Z-direction servo driving assembly, a first balance supporting assembly is arranged at one end, far away from the X-direction servo driving assembly, of the Y-direction servo driving assembly, and a second balance supporting assembly is arranged at the other end of the Y-direction servo driving assembly. A second balance supporting assembly is arranged between the first balance supporting assembly and the X-direction servo driving assembly, the first balance supporting assembly comprises a balance side plate, a side balance sliding block and a side guide rail, and the second balance supporting assembly comprises an adapter block, a lower guide rail, a lower balance sliding block, a side balance sliding block and a side guide rail. The adapter block is fixedly connected to the inner side end of the side balance sliding block, the lower guide rail is fixedly connected between the adapter block and the side balance sliding block, the lower balance sliding block is assembled on the top of the lower guide rail in a sliding mode, the side guide rail is fixedly installed on the inner side of the X-direction servo driving assembly, and the side balance sliding block is assembled on the side guide rail in a sliding mode. And the lower balance sliding block is assembled with the Z-direction servo driving assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of servo systems, in particular to a multi-axis combined servo system. Background Art

[0002] A servo system is an automatic control system that enables the output of an object's position, orientation, state, etc. to change arbitrarily following an input quantity (or given value). The main task of servo is to amplify, transform, and regulate power according to the requirements of control commands, making the torque, speed, and position output by the driving device very flexible and convenient to control. A single servo system can only control the motion process in one direction. After combining multiple servo systems, multi-axis motion control can be achieved, which is also called a combined servo system.

[0003] Currently, Chinese Patent No. CN216505130U discloses a new type of multi-axis servo manipulator, which includes a rotating base and a first transmission mechanism, a second transmission mechanism, and a third transmission mechanism sequentially connected to the rotating base. A manipulator angle self-adjusting mechanism is connected to the third transmission mechanism, and a manipulator is connected to the manipulator angle self-adjusting mechanism; the manipulator angle self-adjusting mechanism includes a connecting rod. One end of the connecting rod is connected to the third transmission mechanism, and the other end of the connecting rod is connected to an adjusting block. An arc-shaped track is provided on one side of the adjusting block. The adjusting block is provided with a first adjusting bolt and a second adjusting bolt. The first adjusting bolt and the second adjusting bolt pass through the arc-shaped track and are fastened between the adjusting block and the arc-shaped track; the lower end surface of the arc-shaped track is connected to a manipulator connecting block, and the manipulator is connected to the manipulator connecting block.

[0004] Although the angle self-adjusting mechanism of this multi-axis servo manipulator is simple and fast to operate and does not require replacing parts when adjusting the angle, through studying its structure, it is found that although it can achieve multi-axis motion, the combination method of multiple servo systems is extremely unstable and the structure is not firm. The entire third slide rail and the related structure of the manipulator are suspended in mid-air, and only a part of the structure is connected by the second nut seat. The manipulator is also prone to problems with poor control accuracy during the motion process. Summary of the Utility Model

[0005] In view of the above situation, to overcome the defects of the prior art, the purpose of the present utility model is to provide a multi-axis combined servo system, which has excellent reliability and stability.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0007] A multi-axis combined servo system includes an X-axis servo drive assembly. A Y-axis servo drive assembly is installed on the top of the X-axis servo drive assembly. A Z-axis servo drive assembly is installed at the front end of the Y-axis servo drive assembly. One end of the Y-axis servo drive assembly far from the X-axis servo drive assembly is provided with a first balance support assembly. A second balance support assembly is provided between the first balance support assembly and the X-axis servo drive assembly. The first balance support assembly includes a balance side plate, a side balance slider, and a side guide rail. The balance side plate is fixedly connected to one side of the Y-axis servo drive assembly. The side balance slider is fixedly connected to the inner side of the bottom of the balance side plate. The side guide rail is installed below the side balance slider, and the side balance slider is slidably assembled with the side guide rail. The second balance support assembly includes an adapter block, a lower guide rail, a lower balance slider, a side-mounted balance slider, and a side-mounted guide rail. The adapter block is fixedly connected to the inner end of the side balance slider. The lower guide rail is fixedly connected between the adapter block and the side-mounted balance slider. The lower balance slider is slidably assembled on the top of the lower guide rail. The side-mounted guide rail is fixedly installed on the inner side of the X-axis servo drive assembly. The side-mounted balance slider is slidably assembled on the side-mounted guide rail. The lower balance slider is assembled with the Z-axis servo drive assembly.

[0008] Further, the X-axis servo drive assembly includes a first servo motor, an X-axis guide rail, an X-axis slider, and a first lead screw. The first lead screw is directly connected to the first servo motor, and the first lead screw is installed inside the X-axis guide rail. The first lead screw is assembled with the X-axis slider. The X-axis slider is slidably connected to the top of the X-axis guide rail. The side-mounted guide rail is fixedly connected to the inner side of the X-axis guide rail.

[0009] Further, the Y-axis servo drive assembly includes a second servo motor, a Y-axis guide rail, a Y-axis slider, and a second lead screw. The second lead screw is directly connected to the second servo motor, and the second lead screw is installed inside the Y-axis guide rail. The second lead screw is assembled with the Y-axis slider. The Y-axis slider is slidably connected to the Y-axis guide rail. The balance side plate is fixedly connected to one side of the Y-axis guide rail.

[0010] Further, the Z-axis servo drive assembly includes a third servo motor, a Z-axis guide rail, a Z-axis slider, and a third lead screw. The third lead screw is directly connected to the third servo motor, and the third lead screw is installed on the Z-axis guide rail. The third lead screw is assembled with the Z-axis slider. The Z-axis slider is slidably connected to the Z-axis guide rail. The bottom end of the Z-axis guide rail is fixedly connected to the lower balance slider.

[0011] Further, a support base is fixedly connected to the top of the X-axis slider. A support block is fixedly connected to the top of the support base. The top end of the support block is fixedly connected to the Y-axis guide rail.

[0012] In summary, the present utility model has the following beneficial effects:

[0013] The utility model can realize the movement in three axial directions through the combination of each servo system. At the same time, after the combination of the servo systems, the first and second balance components dedicated to balancing and stabilizing the overall structure are added, ensuring the stability and reliability of the combined servo system during operation. During the working process, this stability and reliability can provide a more accurate progress for the movement control of the workpiece, making the control level of the movement have a smaller error. Brief Description of the Drawings

[0014] The drawings described herein are used to provide a further understanding of the utility model, form a part of this application, but do not constitute an improper limitation to the utility model. In the drawings:

[0015] Figure 1 is the perspective view of the utility model;

[0016] Figure 2 is the top view of the utility model;

[0017] Figure 3 is Figure 2 the sectional view taken along the line A-A in

[0018] Figure 4 is the front view of the utility model;

[0019] Figure 5 is Figure 4 the sectional view taken along the line B-B in

[0020] In the drawings, 1. X-axis servo drive assembly; 101. First servo motor; 102. X-axis guide rail; 103. X-axis slider; 104. First lead screw; 2. Y-axis servo drive assembly; 201. Second servo motor; 202. Y-axis guide rail; 203. Y-axis slider; 204. Second lead screw; 3. Z-axis servo drive assembly; 301. Third servo motor; 302. Z-axis guide rail; 303. Z-axis slider; 304. Third lead screw; 4. Balance side plate; 5. Side balance slider; 6. Side guide rail; 7. Adapter block; 8. Lower guide rail; 9. Lower balance slider; 10. Side-mounted balance slider; 11. Side-mounted guide rail; 12. Support base; 13. Support block. Detailed Description of the Embodiment

[0021] Regarding the foregoing and other technical contents, features and effects of the utility model, they will be clearly presented in the following detailed description of the embodiments in conjunction with the attached Figure 1 to the attached Figure 5 In the detailed description of the embodiments below, all the structural contents mentioned in the following embodiments are based on the reference of the drawings of the specification.

[0022] The following will describe each exemplary embodiment of the utility model with reference to the drawings.

[0023] Embodiment 1: A multi-axis combined servo system includes an X-axis servo drive assembly 1. A Y-axis servo drive assembly 2 is installed on the top of the X-axis servo drive assembly 1, and a Z-axis servo drive assembly 3 is installed at the front end of the Y-axis servo drive assembly 2.

[0024] The X-axis servo drive assembly 1 includes a first servo motor 101, an X-axis guide rail 102, an X-axis slider 103, and a first lead screw 104. The first lead screw 104 is directly connected to the first servo motor 101, and the first lead screw 104 is installed inside the X-axis guide rail 102. The first lead screw 104 is assembled with the X-axis slider 103, and the X-axis slider 103 is slidably connected to the top of the X-axis guide rail 102. A side guide rail 11 is fixedly connected to the inner side of the X-axis guide rail 102.

[0025] The Y-axis servo drive assembly 2 includes a second servo motor 201, a Y-axis guide rail 202, a Y-axis slider 203, and a second lead screw 204. The second lead screw 204 is directly connected to the second servo motor 201, and the second lead screw 204 is installed inside the Y-axis guide rail 202. The second lead screw 204 is assembled with the Y-axis slider 203, and the Y-axis slider 203 is slidably connected to the Y-axis guide rail 202. A balance side plate 4 is fixedly connected to one side of the Y-axis guide rail 202.

[0026] A support base 12 is fixedly connected to the top of the X-axis slider 103, a support block 13 is fixedly connected to the top of the support base 12, and the top end of the support block 13 is fixedly connected to the Y-axis guide rail 202.

[0027] The Z-axis servo drive assembly 3 includes a third servo motor 301, a Z-axis guide rail 302, a Z-axis slider 303, and a third lead screw 304. The third lead screw 304 is directly connected to the third servo motor 301, and the third lead screw 304 is installed on the Z-axis guide rail 302. The third lead screw 304 is assembled with the Z-axis slider 303, and the Z-axis slider 303 is slidably connected to the Z-axis guide rail 302. The bottom end of the Z-axis guide rail 302 is fixedly connected to a lower balance slider 9.

[0028] A first balance support assembly is provided at one end of the Y-axis servo drive assembly 2 away from the X-axis servo drive assembly 1. The first balance support assembly includes a balance side plate 4, a side balance slider 5, and a side guide rail 6. The balance side plate 4 is fixedly connected to one side of the Y-axis servo drive assembly 2. The side balance slider 5 is fixedly connected to the inner side of the bottom of the balance side plate 4. The side guide rail 6 is installed below the side balance slider 5, and the side balance slider 5 is slidably assembled with the side guide rail 6.

[0029] A second balance support assembly is provided between the first balance support assembly and the X-direction servo drive assembly 1. The second balance support assembly includes an adapter block 7, a lower guide rail 8, a lower balance slider 9, a side balance slider 10, and a side guide rail 11. The adapter block 7 is fixedly connected to the inner end of the side balance slider 5. The lower guide rail 8 is fixedly connected between the adapter block 7 and the side balance slider 10. The lower balance slider 9 is slidably assembled on the top of the lower guide rail 8. The side guide rail 11 is fixedly installed inside the X-direction servo drive assembly 1. The side balance slider 10 is slidably assembled on the side guide rail 11. The lower balance slider 9 is assembled with the Z-direction servo drive assembly 3.

[0030] First of all, it should be stated that this combined servo system can control the movement of the workpiece in three-axis directions, and the workpiece needs to be installed on the surface of the Z-direction slider 303.

[0031] X direction:

[0032] The movement control in the X direction is mainly completed by the X-direction servo system. The first servo motor 101 controls the X-direction slider 103 to move along the arrangement direction of the X-direction guide rail 102 by using the first lead screw 104. Since one side of the Y-direction guide rail 202 is fixed on the surface of the X-direction slider 103 through the support base 12 and the support block 13, and the other side is fixed on the side balance slider 5 through the balance side plate 4, when the X-direction slider 103 moves, it drives the entire Y-direction guide rail 202 to move. The other side of the Y-direction guide rail 202 is affected by the X-direction slider 103, and the side balance slider 5 moves synchronously with the X-direction slider 103. Moreover, during the movement in the X direction, the lower guide rail 8 and the Z-direction servo system assembled on the Y-direction slider 203 also move synchronously in the X direction. The side slider moves along the direction of the side guide rail 11, and since the installation direction of the side guide rail 11 is consistent with the direction of the X-direction guide rail 102, the side slider also moves synchronously with the X-direction slider 103. During this process, the structure of the Z-direction servo system can also be well supported by the lower guide rail 8 and the lower balance slider 9, and there will be no structural shaking problem.

[0033] Y direction:

[0034] The movement in the Y direction is controlled by the second servo motor 201. The second servo motor 201 controls the Y-direction slider 203 to slide on the Y-direction guide rail 202 through the second lead screw 204, thereby driving the Z-direction guide rail 302 to move in the Y direction. At the same time, since the setting direction of the lower guide rail 8 is consistent with the setting direction of the Y-direction guide rail 202, the lower balance slider 9 slides synchronously along the lower guide rail 8, so that while providing a supporting force below the Z-direction guide rail 302, it also locks the structure of the Z-direction guide rail 302, making it always perpendicular to the horizontal plane, ensuring the accuracy when controlling the movement of the workpiece.

[0035] Z direction:

[0036] The movement in the Z direction is completed by the third servo motor 301. Since in the Z-axis servo system, the workpiece is directly connected to the Z-axis slider 303 and the overall structure has maintained good stability and reliability, there is no need to additionally set a balance component here.

[0037] The above is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited thereto; for those skilled in the art of the present invention and related technical fields, based on the technical solution idea of the present invention, the expansions, operation methods, and data replacements should all fall within the protection scope of the present invention.

Claims

1. A multi-axis combined servo system, characterized in that: It includes an X-axis servo drive assembly (1), a Y-axis servo drive assembly (2) is installed on the top of the X-axis servo drive assembly (1), a Z-axis servo drive assembly (3) is installed at the front end of the Y-axis servo drive assembly (2), a first balance support assembly is provided at one end of the Y-axis servo drive assembly (2) away from the X-axis servo drive assembly (1), and a second balance support assembly is provided between the first balance support assembly and the X-axis servo drive assembly (1). The first balance support assembly includes a balance side plate (4), a side balance slider (5), and a side guide rail (6). The balance side plate (4) is fixedly connected to one side of the Y-axis servo drive assembly (2), the side balance slider (5) is fixedly connected to the inner side of the bottom of the balance side plate (4), the side guide rail (6) is installed below the side balance slider (5), and the side balance slider (5) is slidably assembled with the side guide rail (6). The second balance support assembly includes an adapter block (7), a lower guide rail (8), a lower balance slider (9), a side-mounted balance slider (10), and a side-mounted guide rail (11). The adapter block (7) is fixedly connected to the inner end of the side balance slider (5), the lower guide rail (8) is fixedly connected between the adapter block (7) and the side-mounted balance slider (10), the lower balance slider (9) is slidably assembled on the top of the lower guide rail (8), the side-mounted guide rail (11) is fixedly installed inside the X-axis servo drive assembly (1), the side-mounted balance slider (10) is slidably assembled on the side-mounted guide rail (11), and the lower balance slider (9) is assembled with the Z-axis servo drive assembly (3).

2. The multi-axis combined servo system according to claim 1, wherein: The X-axis servo drive assembly (1) includes a first servo motor (101), an X-axis guide rail (102), an X-axis slider (103), and a first lead screw (104). The first lead screw (104) is directly connected to the first servo motor (101), and the first lead screw (104) is installed inside the X-axis guide rail (102). The first lead screw (104) is assembled with the X-axis slider (103), the X-axis slider (103) is slidably connected to the top of the X-axis guide rail (102), and the side-mounted guide rail (11) is fixedly connected to the inner side of the X-axis guide rail (102).

3. The multi-axis combined servo system according to claim 2, characterized in that: The Y-axis servo drive assembly (2) includes a second servo motor (201), a Y-axis guide rail (202), a Y-axis slider (203), and a second lead screw (204). The second lead screw (204) is directly connected to the second servo motor (201), and the second lead screw (204) is installed inside the Y-axis guide rail (202). The second lead screw (204) is assembled with the Y-axis slider (203), the Y-axis slider (203) is slidably connected to the Y-axis guide rail (202), and the balance side plate (4) is fixedly connected to one side of the Y-axis guide rail (202).

4. A multi-axis combined servo system according to claim 3, characterized in that: The Z-axis servo drive assembly (3) includes a third servo motor (301), a Z-axis guide rail (302), a Z-axis slider (303), and a third lead screw (304). The third lead screw (304) is directly connected to the third servo motor (301), and the third lead screw (304) is installed on the Z-axis guide rail (302). The third lead screw (304) is assembled with the Z-axis slider (303), and the Z-axis slider (303) is slidably connected to the Z-axis guide rail (302). The bottom end of the Z-axis guide rail (302) is fixedly connected to the lower balance slider (9).

5. A multi-axis combined servo system according to claim 4, wherein: A support base (12) is fixedly connected to the top of the X-axis slider (103). A support block (13) is fixedly connected to the top of the support base (12). The top end of the support block (13) is fixedly connected to the Y-axis guide rail (202).

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