A servo direct drive micro hydraulic power station for machine tools
By introducing a damper and compact design into the servo direct drive micro hydraulic power station for machine tools, the problem of mechanical vibration affecting hydraulic operation is solved, machining accuracy is improved and the risk of hydraulic oil leakage is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO LIWO HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-23
AI Technical Summary
When a servo direct-drive micro hydraulic power station for machine tools is in operation, the lack of an effective vibration damping structure causes mechanical vibration to be transmitted through the structure, affecting the precise operation of hydraulic components, resulting in fluctuations in hydraulic oil flow and pressure, reducing machining accuracy. Conventional rubber pads have poor vibration isolation effect and are prone to aging.
Design a structure including a hydraulic component and a base component, with the base component mounted on the underside of the hydraulic component. The base component contains a damper for absorbing vibration. Combined with a compact cooling component and hydraulic pipe design, the power station is integrated and vibration is buffered.
It effectively reduces the negative impact of mechanical vibration on machining accuracy, improves the surface finish of workpieces, and reduces the risk of hydraulic oil leakage and pressure loss.
Smart Images

Figure CN224396837U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hydraulic equipment, and specifically relates to a servo direct drive micro hydraulic power station for machine tools. Background Technology
[0002] A servo direct-drive micro hydraulic power station for machine tools is a compact power unit integrating servo drive technology and a hydraulic system. During operation, mechanical vibrations inevitably occur due to the coordinated work of the servo motor and hydraulic pump. Lacking a specific vibration damping structure, these vibrations are transmitted through the power station's own structure, affecting the precise operation of internal hydraulic components, causing fluctuations in hydraulic oil flow and pressure, and reducing the machining accuracy of the machine tool. This is mainly due to the high-speed operation of the motor and the reciprocating motion of the pump. A conventional solution is to add simple vibration-damping materials such as rubber pads at the power station's installation location, relying on their elasticity to buffer some of the vibration energy. However, this method only addresses low-frequency, small-amplitude vibrations and is ineffective against high-frequency, complex vibrations. Furthermore, rubber pads are prone to aging due to long-term pressure and oil temperature, gradually reducing their vibration damping performance. They may also swell and deform after prolonged contact with hydraulic oil due to material compatibility issues, further weakening the vibration damping effect. Therefore, a new structure is needed to solve these technical problems. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a servo direct drive micro hydraulic power station for machine tools, which solves the problems mentioned in the background technology.
[0004] This utility model is achieved through the following technical solution: a servo direct-drive micro hydraulic power station for machine tools, comprising: a hydraulic component and a base assembly. The lower surface of the hydraulic component is fitted with a base assembly for damping vibration. The hydraulic component includes a mounting component for mounting hydraulic parts. The upper surface of the mounting component is fitted with a servo motor and hydraulic parts. The side of the mounting component is fitted with a cooling component for cooling and a hydraulic pipe for driving hydraulic oil. The base assembly includes a base body. The upper surface of the base body is fitted with a buffer for damping, and the lower surface of the base body is fitted with a base block.
[0005] In a preferred embodiment, the mounting component includes a base plate, a vertical plate, and a mounting plate. The vertical plate is integrally formed at the center of the upper surface of the base plate, and the mounting plate is installed on the side of the vertical plate away from the base plate. The mounting plate, the base plate, and the vertical plate form an I-shaped structure.
[0006] In a preferred embodiment, the hydraulic component includes a servo motor and a hydraulic device. The servo motor is mounted on the upper surface of the mounting plate, and the hydraulic device is mounted on the upper surface of the mounting plate. Two hydraulic pipes are symmetrically mounted on the front surface of the hydraulic device, and the two hydraulic pipes have the same structure.
[0007] In a preferred embodiment, the cooling component includes a cooling device and a cooling pipe. The cooling pipe is installed on the outer surface of the hydraulic device, and the cooling device is installed at the end of the cooling pipe away from the hydraulic device. The lower surface of the cooling device is connected to the upper surface of the base plate.
[0008] In a preferred embodiment, the outer surface of the hydraulic pipe is connected to the upper surface of the base plate, a base body is mounted on the lower surface of the base plate, and a base block is mounted on the lower surface of the base body.
[0009] In a preferred embodiment, a buffer is installed at each of the four corners of the upper surface of the base body. The end of the buffer away from the base body is connected to the lower surface of the base plate. A gap is provided between the base body and the base plate. A bottom block is integrally formed on the lower surface of the base body. The lower surface of the base plate abuts against the ground.
[0010] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting a base assembly, a base assembly for buffering vibration is installed on the lower surface of the hydraulic assembly. When in use, by installing a base assembly on the lower surface of the hydraulic assembly for buffering vibration, the transmission of mechanical vibration generated by the servo motor and hydraulic pump during operation to the machine tool body can be effectively reduced, thereby reducing the negative impact of vibration on machining accuracy and improving the surface machining quality of the workpiece.
[0011] 2. By setting up a hydraulic assembly, which includes a mounting component for installing hydraulic parts, a servo motor and hydraulic parts are mounted on the upper surface of the mounting component, and a cooling component and hydraulic pipes for driving hydraulic oil are mounted on the side of the mounting component. In use, by integrating the servo motor and hydraulic parts onto the mounting component and configuring the cooling component and hydraulic pipes on the side, a high degree of integration and compactness of the power station structure can be achieved, reducing the length of external connection pipelines and reducing the risk of hydraulic oil leakage and pressure loss. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the hydraulic components of a servo direct-drive micro hydraulic power station for machine tools according to this utility model.
[0014] Figure 2 This is a schematic diagram of the side structure of a servo direct-drive micro hydraulic power station for machine tools according to this utility model.
[0015] Figure 3 This is a schematic diagram of the base assembly of a servo direct-drive micro hydraulic power station for machine tools according to this utility model.
[0016] In the diagram, 100 is the base plate, 110 is the vertical plate, 120 is the mounting plate, and 130 is the servo motor.
[0017] 200 - Hydraulic equipment; 210 - Hydraulic pipe;
[0018] 300 - Cooling pipe; 310 - Cooling equipment;
[0019] 400 - Base body, 410 - Base block, 420 - Buffer. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1 to 3 As the first embodiment of this utility model: a servo direct drive micro hydraulic power station for machine tools, including: a hydraulic component and a base assembly, the lower surface of the hydraulic component is equipped with a base assembly for damping vibration, the hydraulic component includes a mounting component for mounting hydraulic components, the upper surface of the mounting component is equipped with a servo motor 130 and hydraulic components, the side of the mounting component is equipped with a cooling component for cooling and a hydraulic pipe 210 for driving hydraulic oil, the base assembly includes a base body 400, the upper surface of the base body 400 is equipped with a buffer 420 for damping, and the lower surface of the base body 400 is equipped with a bottom block 410;
[0022] The mounting components include a base plate 100, a vertical plate 110, and a mounting plate 120. The vertical plate 110 is integrally formed at the center of the upper surface of the base plate 100, and the mounting plate 120 is mounted on the side of the vertical plate 110 away from the base plate 100. The mounting plate 120, the base plate 100, and the vertical plate 110 form an I-shaped structure.
[0023] The hydraulic components include a servo motor 130 and a hydraulic device 200. The servo motor 130 is mounted on the upper surface of the mounting plate 120, and the hydraulic device 200 is mounted on the upper surface of the mounting plate 120. Two hydraulic pipes 210 are symmetrically mounted on the front surface of the hydraulic device 200, and the two hydraulic pipes 210 have the same structure.
[0024] The cooling component includes a cooling device 310 and a cooling pipe 300. The cooling pipe 300 is installed on the outer surface of the hydraulic device 200. The cooling device 310 is installed at the end of the cooling pipe 300 away from the hydraulic device 200. The lower surface of the cooling device 310 is connected to the upper surface of the base plate 100.
[0025] The outer surface of the hydraulic pipe 210 is connected to the upper surface of the base plate 100, the base body 400 is installed on the lower surface of the base plate 100, and the base block 410 is installed on the lower surface of the base body 400.
[0026] In use, the upper surface of the base plate 100 is equipped with a servo motor 130, hydraulic equipment 200, cooling components, and hydraulic pipes 210 via the upright plate 110 and mounting plate 120. By integrating the servo motor 130 and hydraulic components onto the mounting plate and configuring the cooling components and hydraulic pipes 210 on the side, the power station structure can be highly integrated and compacted, reducing the length of external connection pipelines and lowering the risk of hydraulic oil leakage and pressure loss. In use, the servo motor 130, hydraulic equipment 200, cooling components, and hydraulic pipes 210 are all existing technologies. Their specific working principles, connection principles, and specific structures are not described here. Existing market equipment can be selected for their models.
[0027] Please see Figures 1 to 3 As a second embodiment of the present invention: based on the description in the above embodiments, further, a buffer 420 is installed at each of the four corners of the upper surface of the base body 400. The end of the buffer 420 away from the base body 400 is connected to the lower surface of the base plate 100. A gap is provided between the base body 400 and the base plate 100. A bottom block 410 is integrally formed on the lower surface of the base body 400. The lower surface of the base plate 100 abuts against the ground.
[0028] When in use, the servo motor 130, hydraulic equipment 200, cooling components, and hydraulic pipes 210 on the upper surface of the mounting plate 120 and base plate 100 will generate vibrations. These vibrations will be transmitted to the base assembly through the base plate 100, vertical plate 110, and mounting plate 120. The vibrations will then be transmitted to the buffer 420 (the buffer 420 is a spring-damped buffer, the specific working principle of which will not be elaborated here). The buffer 420 will absorb the vibrations, thereby achieving a buffering effect. By installing the base assembly on the lower surface of the hydraulic components to buffer vibrations, the transmission of mechanical vibrations generated by the servo motor 130 and hydraulic pump during operation to the machine tool body can be effectively reduced, thereby reducing the negative impact of vibrations on machining accuracy and improving the surface machining quality of the workpiece.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A servo direct-drive miniature hydraulic power unit for machine tools, comprising: A hydraulic assembly and a base assembly, characterized in that a base assembly for damping vibration is mounted on the lower surface of the hydraulic assembly, the hydraulic assembly includes a mounting member for mounting hydraulic components, a servo motor (130) and hydraulic components are mounted on the upper surface of the mounting member, a cooling component for cooling and a hydraulic pipe (210) for driving hydraulic oil are mounted on the side of the mounting member, and the base assembly includes a base body (400), a buffer (420) for damping is mounted on the upper surface of the base body (400), and a base block (410) is mounted on the lower surface of the base body (400).
2. The servo direct-drive micro hydraulic power station for machine tools as described in claim 1, characterized in that: The mounting component includes a base plate (100), a vertical plate (110), and a mounting plate (120). The vertical plate (110) is integrally formed at the center of the upper surface of the base plate (100). The mounting plate (120) is installed on the side of the vertical plate (110) away from the base plate (100). The mounting plate (120), the base plate (100), and the vertical plate (110) form an I-shaped structure.
3. The servo direct-drive micro hydraulic power station for machine tools as described in claim 2, characterized in that: The hydraulic components include a servo motor (130) and a hydraulic device (200). The servo motor (130) is mounted on the upper surface of the mounting plate (120), and the hydraulic device (200) is mounted on the upper surface of the mounting plate (120). Two hydraulic pipes (210) are symmetrically mounted on the front surface of the hydraulic device (200), and the two hydraulic pipes (210) have the same structure.
4. The servo direct-drive micro hydraulic power station for machine tools as described in claim 3, characterized in that: The cooling component includes a cooling device (310) and a cooling pipe (300). The cooling pipe (300) is installed on the outer surface of the hydraulic device (200). The cooling device (310) is installed at the end of the cooling pipe (300) away from the hydraulic device (200). The lower surface of the cooling device (310) is connected to the upper surface of the base plate (100).
5. A servo direct-drive micro hydraulic power station for machine tools as described in claim 4, characterized in that: The outer surface of the hydraulic pipe (210) is connected to the upper surface of the base plate (100), and a base body (400) is installed on the lower surface of the base plate (100), and a base block (410) is installed on the lower surface of the base body (400).
6. The servo direct-drive micro hydraulic power station for machine tools as described in claim 5, characterized in that: A buffer (420) is installed at each of the four corners of the upper surface of the base body (400). The end of the buffer (420) away from the base body (400) is connected to the lower surface of the base plate (100). A gap is provided between the base body (400) and the base plate (100). A base block (410) is integrally formed on the lower surface of the base body (400). The lower surface of the base plate (100) is in contact with the ground.