High-precision positioning tool for optical instrument part mirror base

Abstract

The utility model relates to the technical field of precise optical instruments, in particular to a high-precision positioning tool for an optical instrument part lens base, which comprises a lens base, a mounting table and a positioning mechanism, the positioning mechanism comprises a plurality of positioning rods, and through holes and locking grooves which are in one-to-one correspondence with the positioning rods are respectively formed in the lens base and the mounting table. The positioning rods penetrate through the through holes and are clamped in the locking grooves. The lens base is further provided with a fixing mechanism used for fixing the positioning rods. The fixing mechanism comprises a plurality of rotating shafts which are rotatably connected to the lens base and correspond to the through holes, the end of each rotating shaft is fixedly connected with a supporting frame, and a pressing assembly is arranged on each supporting frame. Through the arranged fixing mechanism, the positioning rod firstly penetrates through the through hole and is clamped in the locking groove to restrain the lens base and the mounting table, and then the positioning rod is fixed through the fixing mechanism to fix the lens base and the mounting table. The utility model meets the requirement of high-precision positioning of the mirror base.

Description

Technical Field

[0001] The utility model relates to the technical field of precision optical instruments, in particular to a high-precision positioning tool for a lens seat of an optical instrument component. Background Art

[0002] Optical instruments are composed of a single or multiple optical components. They are primarily categorized as those that produce real images or virtual images. Mirror mounts secured with screws often experience tangential friction during tightening, which can cause the mirror mount to shift, making them unable to meet the high-precision positioning requirements of the mirror mount.

[0003] The Chinese patent with the authorization announcement number "CN211402880U" and the name "A fast and precise positioning fixed type eyeglass frame" includes a eyeglass frame body and a base, and also includes a positioning pin screw. A pin section is provided on the lower side of the nut of the positioning pin screw, and a threaded section is provided on the lower side of the pin section; the diameter of the pin section is larger than the threaded section; a process tool backing groove is also provided between the pin section and the threaded section; a first pin hole, a second pin hole and a screw through hole arranged in a triangle are provided on the base; the installation and positioning operation is simpler, which greatly improves the installation and debugging efficiency, effectively realizes the complete constrained positioning of the optical element, and effectively avoids the over-constraint problem, significantly improving the installation and fixing accuracy of the eyeglass frame.

[0004] However, this patent uses positioning pin screws to fix the frame and the mounting platform, and the frame may still be misaligned and displaced during the tightening process, requiring multiple debugging. In addition, the vibration during machine operation may also cause the adjusted screws to move, resulting in the inability to meet the requirements of the precision optical system for the position and angle accuracy of the optical lens. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision positioning tool for a lens holder of an optical instrument component, so as to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A high-precision positioning tool for a lens base of an optical instrument component, comprising a lens base and a mounting platform, and also comprising a positioning mechanism, wherein the positioning mechanism comprises a plurality of positioning rods, and the lens base and the mounting platform are respectively provided with through holes and locking grooves corresponding to the positioning rods, the positioning rods pass through the through holes and are clamped in the locking grooves, and the lens base is also provided with a fixing mechanism for fixing the positioning rods; the fixing mechanism comprises a plurality of rotating shafts rotatably connected to the lens base and corresponding to the through holes, the ends of each rotating shaft are fixedly connected to a support frame, and the support frame is provided with a clamping assembly.

[0008] Furthermore, the clamping assembly includes an eccentric wheel rotatably arranged on the support frame, and a holding rod is fixedly connected to the eccentric wheel. Rotating the holding rod drives the eccentric wheel to rotate, and the rotation of the eccentric wheel presses the positioning rod into the locking groove.

[0009] Furthermore, the portion where the eccentric wheel abuts against the positioning rod is the middle portion of the positioning rod.

[0010] Furthermore, the lens holder is provided with a plurality of limiting blocks corresponding to the through holes, and each limiting block is provided with a limiting groove corresponding to the gripping rod.

[0011] Furthermore, the positioning rod is fixedly connected to the connecting frame, and a connecting groove corresponding to the connecting frame is provided on the mirror base, and the connecting groove is located between the rotating shaft and the limit block.

[0012] In the above technical solution, the utility model provides a high-precision positioning tool for optical instrument parts and components, which has the following beneficial effects:

[0013] The fixing mechanism is provided to first pass the positioning rod through the through hole and clamp it into the locking groove, constraining the mirror base and the mounting platform. The positioning rod is then fixed by the fixing mechanism to achieve the installation and fixation of the mirror base and the mounting platform. This utility model has a fast fixing operation, is easy to install, and can avoid position deviation caused by installation, thus meeting the requirements of high-precision positioning of the mirror base.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0018] Figure 2 A schematic diagram of the mirror base structure provided by an embodiment of the present utility model;

[0019] Figure 3 This is a schematic cross-sectional view of an embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 1. Mirror base; 11. Through hole; 12. Connecting groove; 2. Mounting platform; 21. Locking groove; 3. Positioning rod; 31. Connecting frame; 4. Rotating shaft; 41. Support frame; 42. Eccentric wheel; 43. Holding rod; 5. Limit block; 51. Limit groove. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0023] In one embodiment provided by the present utility model, please refer to Figure 1-3 , a high-precision positioning tool for a lens base 1 of an optical instrument component, comprising a lens base 1 and a mounting platform 2, and also comprising a positioning mechanism, wherein the positioning mechanism comprises a plurality of positioning rods 3, and the lens base 1 and the mounting platform 2 are respectively provided with through holes 11 and locking grooves 21 corresponding one to one to the positioning rods 3, the positioning rods 3 pass through the through holes 11 and are clamped in the locking grooves 21, and the lens base 1 is also provided with a fixing mechanism for fixing each positioning rod 3; the fixing mechanism comprises a plurality of rotating shafts 4 rotatably connected to the lens base 1 and corresponding to the through holes 11, and each end of the rotating shaft 4 is fixedly connected to a support frame 41, and a clamping assembly is provided on the support frame 41.

[0024] By means of the fixing mechanism, the positioning rod 3 is first passed through the through hole 11 and clamped in the locking groove 21, constraining the mirror base 1 and the mounting platform 2. The positioning rod 3 is then fixed by the fixing mechanism to achieve the installation and fixation of the mirror base 1 and the mounting platform 2. The fixing operation of the utility model is quick and easy to install, and position deviation caused by installation can be avoided, thereby meeting the requirements of high-precision positioning of the mirror base 1.

[0025] Furthermore, the clamping assembly includes an eccentric wheel 42 rotatably arranged on a support frame 41 , and a holding rod 43 is fixedly connected to the eccentric wheel 42 . Rotating the holding rod 43 drives the eccentric wheel 42 to rotate, and the rotation of the eccentric wheel 42 presses the positioning rod 3 into the locking groove 21 .

[0026] Furthermore, the portion where the eccentric wheel 42 abuts against the positioning rod 3 is the middle portion of the positioning rod 3 .

[0027] Furthermore, the mirror base 1 is provided with a plurality of stop blocks 5 corresponding to the through holes 11, and each of the stop blocks 5 is provided with a stop slot 51 corresponding to the gripping rod 43. After the gripping rod 43 is rotated, it is stuck in the stop slot 51, preventing the rotation shaft 4 from being rotated by accidentally touching the gripping rod 43, releasing the constraint on the stop bar, and the position of the stop slot 51 can indicate the rotation direction of the rotation shaft 4, so that the eccentric wheel 42 can abut against the middle of the positioning rod 3.

[0028] Furthermore, the positioning rods 3 are fixedly connected to the connecting frame 31. The mirror base 1 is provided with a connecting slot 12 corresponding to the connecting frame 31. The connecting slot 12 is located between the rotating shaft 4 and the stop block 5. By connecting the positioning rods 3 together, installation convenience is improved and the fixing stability is enhanced. The connecting slot 12 is located between the rotating shaft 4 and the stop block 5 to facilitate the removal and placement of the connecting frame 31.

[0029] Working principle:

[0030] During installation, first pass the positioning rod 3 on the connecting frame 31 through the through hole 11 and clamp it in the locking groove 21 to constrain the mirror base 1 and the mounting platform 2, then rotate the rotating shaft 4 to align the holding rod 43 with the direction of the limiting groove 51, and rotate the holding rod 43 to drive the eccentric wheel 42 to rotate. The rotation of the eccentric wheel 42 presses the positioning rod 3 into the locking groove 21, and the holding rod 43 is clamped in the limiting groove 51.

[0031] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision positioning tool for a lens holder (1) of an optical instrument component, comprising a lens holder (1) and a mounting platform (2), characterized in that: It also includes a positioning mechanism, the positioning mechanism includes a plurality of positioning rods (3), the mirror base (1) and the mounting platform (2) are respectively provided with through holes (11) and locking grooves (21) corresponding to the positioning rods (3), the positioning rods (3) pass through the through holes (11) and are clamped in the locking grooves (21), and the mirror base (1) is also provided with a fixing mechanism for fixing each positioning rod (3); The fixing mechanism comprises a plurality of rotating shafts (4) rotatably connected to the mirror base (1) and corresponding to the through holes (11); the end of each rotating shaft (4) is fixedly connected to a support frame (41); and a clamping assembly is provided on the support frame (41).

2. The high-precision positioning tool for an optical instrument component lens holder (1) according to claim 1, characterized in that: The clamping assembly comprises an eccentric wheel (42) rotatably arranged on a support frame (41), a holding rod (43) being fixedly connected to the eccentric wheel (42), and the rotation of the holding rod (43) drives the eccentric wheel (42) to rotate, and the rotation of the eccentric wheel (42) presses the positioning rod (3) into the locking groove (21).

3. The high-precision positioning tool for an optical instrument component lens holder (1) according to claim 2, characterized in that: The part where the eccentric wheel (42) abuts against the positioning rod (3) is the middle part of the positioning rod (3).

4. The high-precision positioning tool for an optical instrument component lens holder (1) according to claim 2, characterized in that: The mirror base (1) is provided with a plurality of limit blocks (5) corresponding to the through holes (11), and each of the limit blocks (5) is provided with a limit groove (51) corresponding to the gripping rod (43).

5. The high-precision positioning tool for an optical instrument component lens holder (1) according to claim 1, characterized in that: The positioning rod (3) is fixedly connected to the connecting frame (31), and the mirror base (1) is provided with a connecting groove (12) corresponding to the connecting frame (31), and the connecting groove (12) is located between the rotating shaft (4) and the limiting block (5).

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