Polishing device for nano-precision level machined surface

Abstract

The utility model provides a polishing device for a nanometer precision level machined surface, which belongs to the technical field of precision machining and comprises a base, a moving mechanism, a clamping mechanism and a polishing mechanism. And the moving mechanism comprises a mounting frame, a lead screw, a coupler, a rotating shaft, a first motor, a guide rod, a sliding block and a guide rail, the mounting frame is fixedly mounted at the top of the base, the lead screw and the guide rod are both arranged on the inner side of the mounting frame, and the coupler is fixedly connected to the end of the lead screw. Through accurate control of the moving mechanism, the workpiece can be uniformly polished in the polishing process, the problem that the surface quality is not uniform due to position deviation is avoided, the smoothness and precision of the surface of the workpiece are improved, the device can meet various machining requirements due to the flexibility and adaptability of the moving mechanism, and the machining efficiency is improved. And the utilization rate and the flexibility of equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision machining, and in particular relates to a polishing device for machining a surface at a nanometer precision level. Background Art

[0002] With the rapid development of science and technology, especially in high-tech fields such as aerospace, optoelectronics, biomedicine, and microelectronics, the requirements for material surface processing accuracy are getting higher and higher. Nano-precision processing technology, as an important part of advanced manufacturing technology, has become a key means to achieve high-precision and high-quality processing. Among them, the polishing device for nano-precision processing surface is a key equipment to achieve nano-level surface accuracy.

[0003] The existing polishing devices for nano-precision surface processing are unable to finely adjust and control the position of the workpiece, which directly leads to the workpiece being easily offset or slightly vibrating during the polishing process, thus seriously affecting the processing accuracy. Due to the reduction in processing accuracy, more rework and repair work may be required, increasing the waste of materials and time. Utility Model Content

[0004] The purpose of the utility model is to provide a polishing device for processing a surface at nanometer precision level, aiming to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A polishing device for nanometer precision machining surface comprises a base, a moving mechanism, a clamping mechanism and a polishing mechanism, wherein a roughness measuring instrument is fixedly mounted on one side of the top of the base, the moving mechanism comprises a mounting frame, a screw rod, a coupling, a rotating shaft, a first motor, a guide rod, a slider and a guide rail, the mounting frame is fixedly mounted on the top of the base, the screw rod and the guide rod are both arranged on the inner side of the mounting frame, the coupling is fixedly connected to the end of the screw rod, the rotating shaft is fixedly connected to the end of the coupling, the first motor is fixedly connected to the end of the rotating shaft, the slider is threadedly connected to the outer side of the screw rod, and the guide rail is fixedly mounted inside the mounting frame.

[0007] As a preferred solution of the utility model, a frame is fixedly mounted on one side of the base, and the first motor is fixedly mounted on the top of the frame.

[0008] As a preferred solution of the utility model, there are two guide rods, which are respectively located on both sides of the screw rod, and the screw rod is located above the guide rail.

[0009] As a preferred solution of the utility model, the sliding block is slidably mounted on the top of the guide rail and slidably mounted on the outer side of the guide rod.

[0010] As a preferred solution of the utility model, the clamping mechanism includes a slide groove, a double-headed screw, a clamp and a second motor, the slide groove is opened at the top of the slider, the double-headed screw is arranged inside the slide groove, and one end extends to the outside of the slider, the clamp is threadedly connected to both ends of the double-headed screw, and the second motor is fixedly connected to one end of the double-headed screw.

[0011] As a preferred solution of the utility model, the clamp is slidably installed inside the slide groove, and the thread directions of the two ends of the double-headed screw are opposite.

[0012] As a preferred solution of the utility model, the polishing mechanism includes a first polishing machine, a second polishing machine and a third polishing machine, the first polishing machine, the second polishing machine and the third polishing machine are all fixedly installed on the top of the base, the first polishing machine, the second polishing machine and the third polishing machine are arranged in sequence from right to left, and the number of grinding wheels increases in sequence.

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

[0014] 1. A polishing device for processing surfaces with nanometer precision. The moving mechanism can accurately control the position of the workpiece during the polishing process through the precise coordination of components such as a screw rod, a guide rod, a slider and a guide rail, ensuring that the workpiece can be accurately moved to the bottom of each polishing machine for processing. Due to the precise control of the moving mechanism, the workpiece can be polished evenly during the polishing process, avoiding the problem of uneven surface quality caused by position offset, thereby improving the smoothness and precision of the workpiece surface. In addition, the flexibility and adaptability of the moving mechanism enable the device to cope with a variety of processing requirements, thereby improving the utilization rate and flexibility of the equipment.

[0015] 2. This nanometer-precision surface polishing device can significantly improve the surface finish and precision of the workpiece and meet the processing requirements by polishing step by step in combination with grinding wheels of different mesh sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a rear view of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the mobile mechanism of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the mobile mechanism of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the utility model.

[0022] In the figure: 1. base; 2. moving mechanism; 201. mounting frame; 202. screw rod; 203. coupling; 204. rotating shaft; 205. first motor; 206. guide rod; 207. slider; 208. guide rail; 3. clamping mechanism; 301. slide groove; 302. double-headed screw; 303. fixture; 304. second motor; 4. polishing mechanism; 401. first polishing machine; 402. second polishing machine; 403. third polishing machine; 5. roughness measuring instrument; 6. frame. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1

[0027] Refer to the figure Figure 1-5, is the first embodiment of the utility model, which provides a polishing device for nanometer precision surface processing, including a base 1, a moving mechanism 2, a clamping mechanism 3 and a polishing mechanism 4. A roughness measuring instrument 5 is fixedly installed on one side of the top of the base 1. The moving mechanism 2 includes a mounting frame 201, a screw rod 202, a coupling 203, a rotating shaft 204, a first motor 205, a guide rod 206, a slider 207 and a guide rail 208. The mounting frame 201 is fixedly installed on the top of the base 1, the screw rod 202 and the guide rod 206 are both arranged on the inner side of the mounting frame 201, the coupling 203 is fixedly connected to the end of the screw rod 202, the rotating shaft 204 is fixedly connected to the end of the coupling 203, the first motor 205 is fixedly connected to the end of the rotating shaft 204, the slider 207 is threadedly connected to the outer side of the screw rod 202, and the guide rail 208 is fixedly installed inside the mounting frame 201.

[0028] Specifically, a frame 6 is fixedly mounted on one side of the base 1 , and the first motor 205 is fixedly mounted on the top of the frame 6 .

[0029] Further: the base 1 is the supporting structure of the entire device, providing a stable platform to ensure that all components maintain precise positions and angles during the processing to avoid vibration and deviation. The roughness measuring instrument 5 performs roughness detection on the surface of the workpiece after polishing to ensure that the processing quality meets the requirements. The mounting frame 201 serves as the supporting frame of the moving mechanism 2, providing installation positions for components such as the screw rod 202, the guide rod 206, and the slider 207 to maintain the stability of their relative positions. The screw rod 202 rotates under the drive of the motor, causing the slider 207 to move along its axis. The movement of the moving mechanism 2 drives the clamping mechanism 3 and the workpiece to move, thereby realizing the precise positioning and movement of the workpiece. The coupling 203 connects the two shafts so that they can rotate synchronously, and transmits the rotational power of the motor to the screw rod 202 to realize the transmission and conversion of power. The first motor 205 provides a power source for the moving mechanism 2, driving the screw rod 202 to rotate. The guide rod 206 and the guide rail 208 provide guidance and support for the slider 207, ensuring that the slider 207 moves along the predetermined path, preventing the slider 207 from offsetting or tilting during the movement, and ensuring the accuracy of the moving trajectory.

[0030] Specifically, there are two guide rods 206 , which are respectively located on both sides of the screw rod 202 . The screw rod 202 is located above the guide rail 208 . The slider 207 is slidably installed on the top of the guide rail 208 and slidably installed on the outer side of the guide rod 206 .

[0031] Specifically, the clamping mechanism 3 includes a slide groove 301, a double-headed screw 302, a clamp 303 and a second motor 304. The slide groove 301 is opened at the top of the slider 207, the double-headed screw 302 is arranged inside the slide groove 301, and one end extends to the outside of the slider 207, the clamp 303 is threadedly connected to the two ends of the double-headed screw 302, and the second motor 304 is fixedly connected to one end of the double-headed screw 302. The clamp 303 is slidably installed inside the slide groove 301, and the thread directions at the two ends of the double-headed screw 302 are opposite.

[0032] Furthermore: the slide groove 301 provides installation and movement space for the double-headed screw 302 and the clamp 303, guiding the clamp 303 to move in a predetermined direction to achieve clamping and releasing of the workpiece. The thread directions at both ends of the double-headed screw 302 are opposite, and the two ends produce relative movement during rotation, so that the clamps 303 at both ends move toward or away from each other at the same time to clamp or release the workpiece, thereby achieving rapid clamping and releasing of the workpiece. The clamp 303 firmly clamps the workpiece to prevent movement or falling off during polishing, thereby ensuring the stability and safety of the polishing process. The second motor 304 drives the double-headed screw 302 to rotate to achieve the clamping and releasing actions of the clamp 303.

[0033] Specifically, the polishing mechanism 4 includes a first polishing machine 401, a second polishing machine 402 and a third polishing machine 403. The first polishing machine 401, the second polishing machine 402 and the third polishing machine 403 are all fixedly installed on the top of the base 1. The first polishing machine 401, the second polishing machine 402 and the third polishing machine 403 are arranged from right to left, and the number of grinding wheels increases successively.

[0034] Further: The polishing machine grinds and polishes the workpiece surface through the grinding wheel to achieve the required surface roughness. Different polishing machines have different grinding wheel mesh numbers, which are used to achieve step-by-step polishing, polishing the workpiece surface step by step from coarse to fine, thereby improving polishing efficiency and accuracy.

[0035] Working principle:

[0036] When in use, the workpiece to be polished is placed between the clamps 303 of the clamping mechanism 3, and the second motor 304 is started through the control system to drive the double-headed screw 302 to rotate. Since the threads at both ends of the double-headed screw 302 are in opposite directions, the clamps 303 at both ends will move toward each other at the same time during rotation, and the workpiece is firmly clamped between the clamps 303. The first motor 205 is started through the control system, and the motor drives the screw 202 to rotate through the rotating shaft 204 and the coupling 203. The rotation of the screw 202 causes the slider 207 threadedly connected thereto to move along its axial direction. At the same time, the slider 207 is guided and supported by the guide rod 206 and the guide rail 208, and moves accurately along a predetermined path to the bottom of the first polishing machine 401. First, the workpiece is moved to the bottom of the first polishing machine 401 by the guide rod 206 and the guide rail 208. 1 for preliminary polishing to remove the larger roughness and uneven parts on the workpiece surface. After completing the preliminary polishing, the moving mechanism 2 is started again to move the workpiece to the second polishing machine 402 for intermediate polishing to further refine the surface roughness. Finally, the workpiece is moved to the third polishing machine 403 for fine polishing, using a grinding wheel with a larger mesh number to achieve a surface quality of qualified accuracy. After polishing is completed, the moving mechanism 2 moves the workpiece into the detection range of the roughness measuring instrument 5, starts the roughness measuring instrument 5, and performs roughness detection on the workpiece surface to ensure that the processing quality meets the requirements. If the detection result shows that it is qualified, the second motor 304 is started through the control system to make the double-headed screw 302 rotate in the opposite direction, and the clamp 303 moves in the opposite direction to release the workpiece.

[0037] To sum up: the moving mechanism 2 can accurately control the position of the workpiece during the polishing process through the precise coordination of components such as the screw rod 202, the guide rod 206, the slider 207 and the guide rail 208, ensuring that the workpiece can be accurately moved to the bottom of each polishing machine for processing. Due to the precise control of the moving mechanism 2, the workpiece can be polished evenly during the polishing process, avoiding the problem of uneven surface quality caused by position offset, thereby improving the smoothness and precision of the workpiece surface. In addition, the flexibility and adaptability of the moving mechanism 2 enable the device to cope with a variety of processing requirements, improve the utilization rate and flexibility of the equipment, and through the step-by-step polishing method, combined with grinding wheels of different mesh sizes, the smoothness and precision of the workpiece surface can be significantly improved to meet the processing requirements.

Claims

1. A polishing device for nanometer-precision surface processing, characterized in that: The invention comprises a base (1), a moving mechanism (2), a clamping mechanism (3) and a polishing mechanism (4); a roughness measuring instrument (5) is fixedly mounted on one side of the top of the base (1); the moving mechanism (2) comprises a mounting frame (201), a screw rod (202), a coupling (203), a rotating shaft (204), a first motor (205), a guide rod (206), a sliding block (207) and a guide rail (208); the mounting frame (201) is fixedly mounted on the top of the base (1); The screw rod (202) and the guide rod (206) are both arranged on the inner side of the mounting frame (201); the coupling (203) is fixedly connected to the end of the screw rod (202); the rotating shaft (204) is fixedly connected to the end of the coupling (203); the first motor (205) is fixedly connected to the end of the rotating shaft (204); the slider (207) is threadedly connected to the outer side of the screw rod (202); and the guide rail (208) is fixedly installed inside the mounting frame (201).

2. The polishing device for nanometer-precision surface processing according to claim 1, characterized in that: A frame (6) is fixedly mounted on one side of the base (1), and the first motor (205) is fixedly mounted on the top of the frame (6).

3. The polishing device for nanometer-precision surface processing according to claim 1, characterized in that: There are two guide rods (206), which are respectively located on both sides of the screw rod (202), and the screw rod (202) is located above the guide rail (208).

4. The polishing device for nanometer-precision surface processing according to claim 1, characterized in that: The slider (207) is slidably mounted on the top of the guide rail (208) and is slidably mounted on the outside of the guide rod (206).

5. The polishing device for nanometer-precision surface processing according to claim 1, characterized in that: The clamping mechanism (3) comprises a slide groove (301), a double-headed screw (302), a clamp (303) and a second motor (304); the slide groove (301) is opened at the top of the slider (207); the double-headed screw (302) is arranged inside the slide groove (301) and one end extends to the outside of the slider (207); the clamp (303) is respectively threadedly connected to both ends of the double-headed screw (302); and the second motor (304) is fixedly connected to one end of the double-headed screw (302).

6. The polishing device for nanometer-precision surface processing according to claim 5, characterized in that: The clamp (303) is slidably mounted inside the slide groove (301), and the thread directions of the two ends of the double-headed screw (302) are opposite.

7. The polishing device for nanometer-precision surface processing according to claim 1, characterized in that: The polishing mechanism (4) comprises a first polishing machine (401), a second polishing machine (402) and a third polishing machine (403); the first polishing machine (401), the second polishing machine (402) and the third polishing machine (403) are all fixedly mounted on the top of the base (1); the first polishing machine (401), the second polishing machine (402) and the third polishing machine (403) are arranged in sequence from right to left, and the grits of the grinding wheels increase in sequence.

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