A high-precision positioning fixture for a lens mount of an optical instrument component

Abstract

This utility model discloses a high-precision positioning fixture for optical instrument component lens mounts, relating to the field of optical instrument component processing technology. It includes: a mounting base providing a foundation for a rotary drive assembly and a dual-station positioning assembly; a rotary drive assembly driving adjacent three-jaw chucks to rotate; and a dual-station positioning assembly comprising a rotating disk nested on top of a mounting table via bearings and a servo motor fixedly mounted on the bottom of the mounting table. This utility model, through its dual-station setup, allows the positioning of the next field lens mount to be completed during the grinding process of the previous one. This facilitates the simultaneous output of the ground field lens mount and the input of the field lens mount to be ground, effectively shortening the processing interval and improving processing efficiency. Simultaneously, the debris generated during grinding can be collected and guided for convenient centralized cleaning.

Description

Technical Field

[0001] This utility model relates to the field of optical instrument component processing technology, and in particular to a high-precision positioning fixture for optical instrument component lens mounts. Background Technology

[0002] Laser field lenses are the core optical components of laser processing systems. They are mainly used to form a uniformly focused spot of laser beam on a specific working plane to ensure consistent processing accuracy and effect. The main types are flat field lenses and telecentric field lenses. When using a field lens, a lens mount is set on its outer side to facilitate the installation of the field lens. During the production of the field lens mount, the edge of the mounting opening needs to be beveled by grinding.

[0003] In the prior art, when grinding field lens mounts, the field lens mount is usually first positioned with high precision using a positioning fixture. Then, the positioning fixture drives the field lens mount to rotate, and the grinding tool is kept close to the field lens mount until the excess part of the field lens mount is cut off by the grinding tool and a slope is formed.

[0004] However, existing positioning fixtures for machining field lens mounts are usually set up in a single station. After completing the previous machining, the operator needs to remove the machined field lens mount before installing and fixing the next field lens mount to be machined, which results in relatively low machining efficiency.

[0005] Therefore, it is necessary to invent a high-precision positioning fixture for the lens mount of optical instrument components to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-precision positioning fixture for optical instrument component mounts. Through a dual-station setup, the positioning of the next field lens mount can be completed during the grinding process of the previous one. This facilitates the simultaneous output of the ground field lens mount and the input of the field lens mount to be ground, effectively shortening the processing interval and improving processing efficiency. Simultaneously, the debris generated during grinding can be collected and guided for convenient centralized cleaning. This addresses the problem mentioned in the background art that existing positioning fixtures for processing field lens mounts are typically single-station setups. After completing the previous processing, the operator needs to remove the processed field lens mount before installing and fixing the next one, resulting in relatively low processing efficiency.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a high-precision positioning fixture for an optical instrument component lens mount, comprising:

[0008] Mounting base, which provides a mounting foundation for the rotary drive assembly and the dual-station positioning assembly;

[0009] A rotary drive assembly, wherein the rotary drive assembly is used to drive adjacent three-jaw chucks to rotate; and

[0010] A dual-station positioning assembly includes a rotary disk nested on the top of a mounting platform via bearings and a servo motor fixedly mounted on the bottom of the mounting platform. The rotary disk is fixedly sleeved on the outside of the output shaft of the servo motor. Two symmetrically arranged three-jaw chucks are nested on the top of the rotary disk via bearings. A central shaft is fixedly mounted at the bottom center of each three-jaw chuck, and a hexagonal groove is opened at the bottom of the central shaft. A guide plate is rotatably sleeved on the outside of each three-jaw chuck via bearings, and a retaining wall fixedly sleeved on the outside of the guide plate and fixedly connected to the rotary disk.

[0011] According to at least one embodiment of the present disclosure, a high-precision positioning fixture for an optical instrument component lens mount includes a mounting platform, wherein a clearance hole is provided at the rear end of the top of the mounting platform.

[0012] According to at least one embodiment of the optical instrument component lens mount high-precision positioning fixture, the mounting platform is fixedly provided with support columns at the four corners of the bottom, and the bottom ends of the four support columns are jointly fixedly provided with a fixed base.

[0013] According to at least one embodiment of the present disclosure, a high-precision positioning fixture for an optical instrument component lens mount includes a lower fixing frame fixedly disposed on the top of a fixed base, and an electric push rod fixedly disposed on the top inner side of the lower fixing frame.

[0014] According to at least one embodiment of the present disclosure, a high-precision positioning fixture for an optical instrument component lens mount is provided, wherein the output shaft of the electric push rod extends to the top of the lower fixed frame and is fixedly connected to an upper fixed frame, and a drive motor is fixedly provided on the inner side of the upper fixed frame.

[0015] According to at least one embodiment of the optical instrument component lens mount high-precision positioning fixture, guide shafts are fixedly provided at both ends of the bottom of the upper fixed frame, and the guide shafts pass through the lower fixed frame in the vertical direction and are slidably connected to the lower fixed frame through linear bearings.

[0016] According to at least one embodiment of the present disclosure, a high-precision positioning fixture for an optical instrument component lens mount is provided, wherein the output shaft of the drive motor extends to the top of the upper fixed frame and is fixedly connected to a hexagonal shaft, and the hexagonal shaft and the adjacent hexagonal slot are coaxially arranged in the vertical direction and adapted to each other.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] This invention, through the dual-station setup, allows the positioning of the next field mirror mount to be completed during the grinding process of the previous field mirror mount. This facilitates the simultaneous output of the field mirror mount after grinding and the input of the field mirror mount to be ground, effectively shortening the processing interval and improving processing efficiency. At the same time, the debris generated during grinding can be collected and guided for convenient centralized cleaning. Attached Figure Description

[0019] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0021] Figure 2 This is a schematic diagram of the mounting base structure of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0022] Figure 3 This is a schematic diagram of the rotation drive assembly structure of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0023] Figure 4 This is a schematic diagram of a dual-station positioning assembly of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0024] The specific labels in the attached figures are as follows:

[0025] 1. Mounting base; 11. Mounting platform; 12. Clearance hole; 13. Support column; 14. Fixed base;

[0026] 2. Rotary drive assembly; 21. Lower fixed frame; 22. Electric push rod; 23. Upper fixed frame; 24. Drive motor; 25. Guide shaft; 26. Hexagonal shaft;

[0027] 3. Dual-station positioning assembly; 31. Rotary disk; 32. Servo motor; 33. Three-jaw chuck; 34. Central shaft; 35. Hexagonal groove; 36. Guide plate; 37. Enclosure. Detailed Implementation

[0028] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0029] Figure 1 This is a schematic diagram of the overall structure of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0030] Figure 2 This is a schematic diagram of the mounting base 1 of a high-precision positioning fixture for an optical instrument component mirror mount according to one embodiment of the present disclosure.

[0031] Figure 2 This is a schematic diagram of the rotating drive assembly 2 of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0032] Figure 3 This is a schematic diagram of the dual-station positioning component 3 of a high-precision positioning fixture for an optical instrument component lens mount according to one embodiment of the present disclosure.

[0033] like Figures 1-4 As shown, the high-precision positioning fixture for the lens mount of the optical instrument component disclosed herein may include components such as: mounting base 1, rotary drive assembly 2, and dual-station positioning assembly 3.

[0034] like Figure 2 As shown in this disclosure, the mounting base 1 includes a mounting platform 11. The mounting platform 11 has a clearance hole 12 at the rear end of its top. Support columns 13 are fixedly installed at the four corners of the bottom of the mounting platform 11. The support columns 13 are made of No. 45 steel and have strong bending resistance. The bottom ends of the four support columns 13 are fixedly installed with a fixed base 14. The base 14 is made of gray cast iron, which has excellent shock absorption properties and can offset the high-frequency vibration during grinding, ensuring the stability of positioning accuracy.

[0035] Therefore, when fixing this tooling, it can be done by using the holes at the four corners of the top of the fixed base 14 with fixing bolts. The setting of the clearance hole 12 can avoid obstructing the lifting and lowering of the hexagonal shaft 26.

[0036] like Figure 3 As shown, in a preferred embodiment, the dual-station positioning assembly 3 includes a lower fixed frame 21 fixedly mounted on the top of the fixed base 14. An electric push rod 22 is fixedly mounted on the top inner side of the lower fixed frame 21. The output shaft of the electric push rod 22 extends to the top of the lower fixed frame 21 and is fixedly connected to an upper fixed frame 23. Both the upper fixed frame 21 and the lower fixed frame 23 are made of 6061-T6 aluminum alloy, which is lightweight and can reduce the driving load of the electric push rod 22 and reduce energy consumption. A drive motor 24 is fixedly mounted on the inner side of the upper fixed frame 23. Guide shafts 25 are fixedly mounted at both ends of the bottom of the upper fixed frame 23. The guide shafts 25 pass through the lower fixed frame 21 in the vertical direction and are slidably connected to the lower fixed frame 21 through linear bearings. The output shaft of the drive motor 24 extends to the top of the upper fixed frame 23 and is fixedly connected to a hexagonal shaft 26. The hexagonal shaft 26 and the adjacent hexagonal slot 35 are coaxially arranged in the vertical direction and are mutually adapted.

[0037] Therefore, after the three-jaw chuck 33 moves the field lens mount to the grinding station, the electric push rod 22 drives the upper fixed frame 23, which is guided by the guide shaft 25, to move upward continuously. When the upper fixed frame 23 moves upward, the drive motor 24 drives the hexagonal shaft 26 to insert into the inner side of the adjacent hexagonal slot 35. Then, the drive motor 24 can drive the central shaft 34 to rotate continuously through the hexagonal shaft 26 and the hexagonal slot 35. In turn, the central shaft 34 drives the field lens mount to be ground to rotate continuously through the corresponding three-jaw chuck 33, which facilitates the formation of the annular slope.

[0038] like Figure 4As shown in this disclosure, the dual-station positioning assembly 3 includes a rotating disk 31 nested on the top of the mounting platform 11 via bearings and a servo motor 32 fixedly mounted on the bottom of the mounting platform 11. The rotating disk 31 is made of 6061-T6 aluminum alloy with a hard anodized surface. Its lightweight design reduces the start-stop load of the servo motor 32, improving the station switching speed. The hard anodized layer is wear-resistant and scratch-resistant, preventing surface damage caused by debris impact. It is lightweight yet strong, with low rotational inertia, resulting in higher control precision for the servo motor 32. A servo controller (existing technology) is connected to the servo motor 32 to control the rotation angle of its output shaft. The rotating disk 31 is fixedly mounted on the servo motor 31. A fixed sleeve is installed on the outside of the output shaft of the servo motor 32. Two symmetrically arranged three-jaw chucks 33 are nested on the top of the rotating disk 31 through a bearing. A central shaft 34 is fixedly installed at the bottom center of each three-jaw chuck 33. A hexagonal groove 35 is opened at the bottom of the central shaft 34. A guide plate 36 is installed on the outside of each three-jaw chuck 33 through a bearing. The guide plate 36 is made of 304 stainless steel, which is resistant to cutting fluid and metal shavings corrosion. It has a smooth surface, allowing shavings to slide off smoothly without residue and providing good flow guidance. A barrier 37 is fixedly installed on the outside of the guide plate 36 and is fixedly connected to the rotating disk 31. The barrier 37 is made of ABS engineering plastic, which is lightweight, has good formability, and provides a wide range of protection.

[0039] Therefore, to facilitate actual processing, after fixing this fixture on the grinding equipment, the field lens holder to be processed is fixed on the front three-jaw chuck 33. The three-jaw chuck 33 performs high-precision positioning of the field lens holder. Then, the servo motor 32 drives the rotary table 31 to rotate 180 degrees. At this time, the two three-jaw chucks 33 complete the interchange, and the positioned field lens holder moves to the grinding station adjacent to the grinding tool. Then, the grinding equipment drive unit drives the grinding tool to move closer to the grinding position on the field lens holder until the grinding is completed. During this process, the next field lens to be processed is moved to the next grinding position. The field lens mount is fixed on an empty three-jaw chuck 33. After the previous field lens mount is ground, the servo motor 32 drives the rotary table 31 to rotate 180 degrees again. At this time, the ground field lens mount is output, and the field lens mount to be ground is input into the grinding station. Compared with the existing technology, the dual-station setting allows the positioning of the next field lens mount to be completed during the grinding process of the previous field lens mount. This facilitates the simultaneous output of the ground field lens mount and the input of the field lens mount to be ground, effectively shortening the processing interval and improving processing efficiency.

[0040] In addition, during the grinding process, the grinding debris falls onto the top of the corresponding 36b and is collected. Then, guided by 36b and 37b, it is output for easy collection and cleaning.

[0041] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0042] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A high-precision positioning fixture for a lens mount of an optical instrument component, characterized in that, include: Mounting base, which provides a mounting foundation for the rotary drive assembly and the dual-station positioning assembly; A rotary drive assembly for driving adjacent three-jaw chucks to rotate; as well as A dual-station positioning assembly includes a rotary disk nested on the top of a mounting platform via bearings and a servo motor fixedly mounted on the bottom of the mounting platform. The rotary disk is fixedly sleeved on the outside of the output shaft of the servo motor. Two symmetrically arranged three-jaw chucks are nested on the top of the rotary disk via bearings. A central shaft is fixedly mounted at the bottom center of each three-jaw chuck, and a hexagonal groove is opened at the bottom of the central shaft. A guide plate is rotatably sleeved on the outside of each three-jaw chuck via bearings, and a retaining wall fixedly sleeved on the outside of the guide plate and fixedly connected to the rotary disk.

2. The high-precision positioning fixture for the lens mount of optical instrument components according to claim 1, characterized in that: The mounting base includes a mounting platform, and the rear end of the top of the mounting platform has an avoidance hole.

3. The high-precision positioning fixture for the lens mount of optical instrument components according to claim 2, characterized in that: Each of the four corners of the bottom of the mounting platform is fixedly equipped with a support column, and the bottom of the four support columns are jointly fixedly equipped with a base.

4. The high-precision positioning fixture for the lens mount of optical instrument components according to claim 3, characterized in that: The dual-station positioning assembly includes a lower fixing frame fixedly mounted on the top of the fixed base, and an electric push rod is fixedly mounted on the top inner side of the lower fixing frame.

5. The high-precision positioning fixture for the lens mount of optical instrument components according to claim 4, characterized in that: The output shaft of the electric push rod extends to the top of the lower fixed frame and is fixedly connected to the upper fixed frame. A drive motor is fixedly installed on the inner side of the upper fixed frame.

6. The high-precision positioning fixture for the lens mount of optical instrument components according to claim 5, characterized in that: Guide shafts are fixedly installed at both ends of the bottom of the upper fixed frame. The guide shafts pass through the lower fixed frame in a vertical direction and are slidably connected to the lower fixed frame through linear bearings.

7. The high-precision positioning fixture for the lens mount of an optical instrument component according to claim 6, characterized in that: The output shaft of the drive motor extends to the top of the upper fixed frame and is fixedly connected to a hexagonal shaft. The hexagonal shaft and the adjacent hexagonal slot are coaxially arranged in the vertical direction and are mutually adapted.

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