An electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings

Abstract

This utility model discloses an electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings, relating to the field of extra-large bearing processing technology. It includes processing equipment, within which a positioning mechanism and a lifting mechanism are installed; the lifting mechanism includes a mounting frame, with fixing bolts mounted on one side of the mounting frame. Through the positioning and lifting mechanisms, during operation, the first cylinder within the mounting frame is activated, pushing the sliding block and lifting plate vertically upwards along the mounting frame. The second cylinder then moves the lifting plate, causing the clamping ring to fit against the extra-large wind turbine bearing under the action of a spring. Subsequently, the wind turbine bearing is placed on the anti-slip pad on top of the lifting plate by a robotic arm. The first cylinder then precisely places the workpiece onto the electro-permanent magnet chuck. This device achieves stable vertical lifting and lowering, avoiding impact on the precision workpiece and the electro-permanent magnet chuck below, ensuring flexibility and safety during the loading and unloading process.

Description

Technical Field

[0001] This utility model relates to the field of extra-large bearing technology, specifically to an electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings. Background Technology

[0002] In wind power equipment manufacturing, wind turbine bearings are core rotating components, and their machining accuracy directly affects the operational stability and service life of wind turbines. Among them, ultra-precision machining is a key process to improve the surface quality of wind turbine bearings and reduce frictional losses. The accuracy and efficiency of the positioning device directly determine the quality and production capacity of ultra-precision machining. In traditional wind turbine bearing processing, roughing and finishing often need to be carried out in separate steps, and the positioning process relies on manual adjustment or a single magnetic or mechanical clamping method, resulting in large fluctuations in machining accuracy and low changeover efficiency, which makes it difficult to meet the high-precision and high-consistency production requirements of modern wind turbine bearings.

[0003] However, in the use of existing equipment, the weight of large wind turbine shafts can cause them to impact the surface of the electro-permanent magnet chuck under the influence of gravity when placed by a robotic arm, resulting in damage to the electro-permanent magnet chuck, reducing work efficiency and service life. Therefore, we propose a more convenient and practical positioning device to meet the usage requirements. Utility Model Content

[0004] The purpose of this utility model is to provide an electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings, comprising a processing equipment, wherein the processing equipment is provided with a positioning mechanism and a lifting mechanism; the lifting mechanism includes a mounting frame, a fixing bolt is installed on one side of the mounting frame, a mounting frame is fixedly connected to the top side of the mounting frame, a sliding block is slidably connected to the inner wall of one side of the mounting frame, and a first cylinder is installed at the center of the top of the mounting frame, wherein the output end of the first cylinder is connected to the sliding block.

[0006] Furthermore, the positioning mechanism includes a base, a drive assembly is mounted at the top center of the base, and a rotating seat is fixedly connected to the top of the drive assembly.

[0007] Furthermore, a rotating plate is fixedly connected to the top of the rotating seat, an electro-permanent magnet chuck is installed on the top of the rotating plate, and an automatic gripper is installed on the top of the electro-permanent magnet chuck.

[0008] Furthermore, a slot is provided in the middle of one side of the sliding block, and a second cylinder is installed in the slot. A lifting plate is fixedly connected to the output end of the second cylinder, and an anti-slip pad is fixedly connected to the top of the lifting plate.

[0009] Furthermore, a fixing plate is fixedly connected to one side of the top of the lifting plate, and a through hole is opened on one side of the top of the fixing plate. A sliding column is slidably connected in the through hole, and a clamping ring is fixedly connected to one end of the sliding column.

[0010] Furthermore, a spring is installed on the outer wall of the sliding column, with one end of the spring in contact with the clamping ring and the other end in contact with the fixing plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The electro-permanent magnet positioning device of this CNC vertical ultra-precision machine tool for wind turbine bearings, through the setting of positioning and lifting mechanisms, firstly fixes the mounting frame to the electro-permanent magnet chuck with fixing bolts. Then, the first cylinder inside the mounting frame is activated, pushing the sliding block and lifting plate to rise vertically along the mounting frame. The second cylinder is activated, pushing the lifting plate to move, so that the clamping ring fits the extra-large wind turbine bearing under the action of springs. Subsequently, the wind turbine bearing is placed on the anti-slip pad on the top of the lifting plate by the robot arm. The first cylinder is activated to accurately place the workpiece on the electro-permanent magnet chuck. Finally, the lifting plate is completely lowered below the electro-permanent magnet chuck table. This device can achieve smooth vertical lifting and lowering, avoiding impact on the precision workpiece and the electro-permanent magnet chuck below, ensuring the flexibility and safety of the loading and unloading process. It is highly practical and suitable for widespread application.

[0012] Meanwhile, the positioning mechanism, once magnetized, provides a powerful clamping force without thermal deformation, ensuring the absolute stability of the workpiece during high-speed rotation and processing. This avoids the loosening or deformation that may occur with traditional hydraulic or mechanical clamping, thus guaranteeing the extremely high precision of ultra-precision machining. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the processing equipment structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the lifting mechanism of this utility model.

[0014] In the diagram: 1. Processing equipment; 2. Positioning mechanism; 201. Base; 202. Drive assembly; 203. Rotating seat; 204. Rotating plate; 205. Electro-permanent magnet chuck; 206. Automatic gripper; 3. Lifting mechanism; 301. Mounting bracket; 302. Fixing bolt; 303. Mounting frame; 304. Sliding block; 305. First cylinder; 306. Second cylinder; 307. Lifting plate; 308. Anti-slip pad; 309. Fixing plate; 310. Sliding column; 311. Clamping ring; 312. Spring. Detailed Implementation

[0015] 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.

[0016] In the processing of extra-large bearings, positioning equipment is required. The positioning equipment provided by this utility model is specifically used for the positioning of wind power bearings in the processing of extra-large bearings. When using this equipment for positioning, after use, the electro-permanent magnet chuck 205 may have residual magnetism. Before lifting the processed workpiece, it is necessary to use a gaussmeter to confirm that the residual magnetism intensity has dropped to a safe range, or use a non-magnetic material (such as copper or aluminum) pry bar to check for no adsorption force, so as to prevent the workpiece from suddenly falling off and causing serious accidents. The worktable surface of the electro-permanent magnet chuck 205 and the surface of the lifting plate 307 and the anti-slip pad 308 must be kept absolutely clean, free of any iron filings, dust, oil stains or small particles. It is strictly forbidden to hit the surface of the electro-permanent magnet chuck 205 with hard objects.

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: an electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings, including a processing equipment 1, a positioning mechanism 2 and a lifting mechanism 3 are provided inside the processing equipment 1; the lifting mechanism 3 includes a mounting frame 301, a fixing bolt 302 is installed on one side of the mounting frame 301, a mounting frame 303 is fixedly connected to the top side of the mounting frame 301, a sliding block 304 is slidably connected to the inner wall of one side of the mounting frame 303, a first cylinder 305 is installed at the top center of the mounting frame 303, and the output end of the first cylinder 305 is connected to the sliding block 304.

[0018] like Figure 3 As shown, the positioning mechanism 2 includes a base 201, a drive assembly 202 is installed at the top center of the base 201, a rotating seat 203 is fixedly connected to the top of the drive assembly 202, a rotating plate 204 is fixedly connected to the top of the rotating seat 203, an electro-permanent magnet chuck 205 is installed on the top of the rotating plate 204, and an automatic gripper 206 is installed on the top of the electro-permanent magnet chuck 205.

[0019] It is important to note that during use, when positioning and machining extra-large wind turbine bearings, the electro-permanent magnet chuck 205 is first energized and magnetized to generate a strong adsorption force. The wind turbine bearing is then slowly placed on the electro-permanent magnet chuck 205 via the lifting mechanism 3. Next, the automatic gripper 206 moves to clamp the wind turbine bearing workpiece from the outside, completing precise centering and initial clamping. During ultra-precision machining, the drive component 202 installed in the base 201 is activated. According to the CNC program instructions, it precisely drives the rotating seat 203, the rotating plate 204, and the wind turbine bearing fixed on it to rotate for machining. After being magnetized, the positioning mechanism 2 provides a strong clamping force without thermal deformation, ensuring the absolute stability of the workpiece during high-speed rotation and machining. This avoids the loosening or deformation that may occur with traditional hydraulic or mechanical clamping, thus ensuring the extremely high precision of ultra-precision machining.

[0020] like Figure 4 As shown, a slot is provided in the middle of one side of the sliding block 304, and a second cylinder 306 is installed in the slot. A lifting plate 307 is fixedly connected to the output end of the second cylinder 306. An anti-slip pad 308 is fixedly connected to the top of the lifting plate 307. A fixing plate 309 is fixedly connected to one side of the top of the lifting plate 307. A through hole is provided on one side of the top of the fixing plate 309. A sliding column 310 is slidably connected in the through hole. A clamping ring 311 is fixedly connected to one end of the sliding column 310. A spring 312 is installed on the outer wall of the sliding column 310. One end of the spring 312 is in contact with the clamping ring 311, and the other end is in contact with the fixing plate 309.

[0021] It should be noted that during use, the mounting bracket 301 is first fixed to the electro-permanent magnet chuck 205 using fixing bolts 302. Then, the first cylinder 305 inside the mounting frame 303 is activated, pushing the sliding block 304 and the lifting plate 307 to rise vertically along the mounting frame 303. The second cylinder is activated, pushing the lifting plate 307 to move, so that the clamping ring 311 fits against the extra-large wind turbine bearing under the action of the spring 312. Subsequently, the wind turbine bearing is placed on the anti-slip pad 308 on the top of the lifting plate 307 by the robot arm. Then, the first cylinder 305 is activated to accurately place the workpiece on the electro-permanent magnet chuck 205. Finally, the lifting plate 307 is completely lowered below the table surface of the electro-permanent magnet chuck 205. Under the action of the spring 312, the clamping ring 311 can slightly adapt to the outer ring of the workpiece, playing a preliminary role in straightening and guiding.

[0022] During use, when positioning and machining extra-large wind turbine bearings, the electro-permanent magnet chuck 205 is first energized and magnetized to generate a strong adsorption force. Then, a robotic arm places the extra-large wind turbine bearing on the anti-slip pad 308 on top of the lifting plate 307. The lifting mechanism 3 then slowly places the wind turbine bearing onto the electro-permanent magnet chuck 205. The first cylinder 305 activates, and the lifting plate 307 descends completely below the table surface of the electro-permanent magnet chuck 205, precisely placing the workpiece onto it. Simultaneously, the electro-permanent magnet chuck 205 is energized. Magnetization generates a strong adsorption force, while the automatic gripper 206 moves to clamp the wind turbine bearing workpiece from the outside, completing precise centering and initial clamping. During the ultra-precision machining process, the drive component 202 installed in the base 201 is activated. According to the CNC program instructions, it precisely drives the rotating seat 203, the rotating plate 204 and the wind turbine bearing fixed on it to rotate for processing. This device can achieve smooth vertical lifting and lowering, avoiding impact on the precision workpiece and the electro-permanent magnet chuck 205 below, ensuring the flexibility and safety of the loading and unloading process.

[0023] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings, comprising processing equipment (1), characterized in that: The processing equipment (1) is provided with a positioning mechanism (2) and a lifting mechanism (3); the lifting mechanism (3) includes a mounting frame (301), a fixing bolt (302) is installed on one side of the mounting frame (301), a mounting frame (303) is fixedly connected to the top side of the mounting frame (301), a sliding block (304) is slidably connected to the inner wall of one side of the mounting frame (303), a first cylinder (305) is installed at the center of the top of the mounting frame (303), and the output end of the first cylinder (305) is connected to the sliding block (304).

2. The electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings according to claim 1, characterized in that: The positioning mechanism (2) includes a base (201), a drive assembly (202) is installed at the top center of the base (201), and a rotating seat (203) is fixedly connected to the top of the drive assembly (202).

3. The electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings according to claim 2, characterized in that: The rotating seat (203) is fixedly connected to a rotating plate (204) on top, and an electro-permanent magnet chuck (205) is installed on the top of the rotating plate (204). An automatic gripper (206) is installed on the top of the electro-permanent magnet chuck (205).

4. The electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings according to claim 1, characterized in that: The sliding block (304) has a slot in the middle of one side, and a second cylinder (306) is installed in the slot. The output end of the second cylinder (306) is fixedly connected to a lifting plate (307), and an anti-slip pad (308) is fixedly connected to the top of the lifting plate (307).

5. The electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings according to claim 4, characterized in that: A fixing plate (309) is fixedly connected to one side of the top of the lifting plate (307). A through hole is opened on one side of the top of the fixing plate (309), and a sliding column (310) is slidably connected in the through hole. A clamping ring (311) is fixedly connected to one end of the sliding column (310).

6. The electro-permanent magnet positioning device for a CNC vertical ultra-precision machine tool for wind turbine bearings according to claim 5, characterized in that: A spring (312) is installed on the outer wall of the sliding column (310). One end of the spring (312) is in contact with the clamping ring (311), and the other end is in contact with the fixing plate (309).

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