A mirror clamping tool for detecting the plane mirror transmission surface shape

Abstract

This utility model relates to the field of optical component testing technology, specifically to a reflector clamping fixture for detecting the transmission surface shape of a plane mirror, including an upper end plate, a lower end plate, and at least two columns. Both the upper and lower end plates have at least two through holes, which are then fitted onto the columns. The upper end plate is slidably positioned above the lower end plate. The lower end surface of the upper end plate and the upper end surface of the lower end plate together define a mirror clamping area for holding the reflector. A limiting groove adapted to the side of the reflector is provided on the side of the upper end plate and / or the lower end plate adjacent to the mirror clamping area. This utility model ensures the parallelism of the upper and lower end plates, avoiding clamping deviations caused by the fixture's own tilt. The size of the mirror clamping area can be flexibly adjusted to accommodate reflectors of different shapes and sizes, expanding the applicability of this clamping fixture. The limiting groove is designed to adapt to the side of the reflector, thus accommodating reflectors of different contours such as square and round.

Description

Technical Field

[0001] The utility model relates to the technical field of optical element detection. Specifically, it relates to a mirror clamping tooling for detecting the transmissive surface shape of a plane mirror. Background Technique

[0002] In the field of optical element detection, when using a laser interferometer to detect the transmissive surface shape of a plane mirror, a mirror needs to be set behind the plane mirror to be measured to form a specific optical path, so as to achieve accurate measurement of the transmissive surface shape of the plane mirror. However, the existing plane mirror clamping device supporting the laser interferometer only has a tooling for clamping the plane mirror to be measured, but lacks a special tooling for clamping the mirror.

[0003] In actual detection operations, due to the lack of a special mirror clamping tooling, operators often can only fix the mirror in a simple way, such as manually holding, using a temporarily built bracket or a general fixture, etc. These simple ways have many disadvantages: on the one hand, it is difficult to stably clamp mirrors of different shapes such as square and circular, and it is easy to displace or shake during the detection process, affecting the accuracy of the detection results; on the other hand, it is impossible to conveniently and accurately adjust the height and pitch angle of the mirror, and the height and pitch angle of the mirror directly relate to the accuracy of the optical path, thus affecting the accuracy and efficiency of the entire detection process.

[0004] Therefore, there is an urgent need for a special mirror clamping tooling that can stably clamp mirrors of different shapes and can achieve height and pitch adjustment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mirror clamping tooling for detecting the transmissive surface shape of a plane mirror. By setting an upper end plate, a lower end plate and a column, and using the sliding fit and limiting groove structure between the upper end plate and the lower end plate, the technical problems pointed out in the background technique are solved.

[0006] The utility model is realized through the following technical solutions: A mirror clamping tooling for detecting the transmissive surface shape of a plane mirror, including an upper end plate, a lower end plate and at least two columns;

[0007] At least two through holes are provided on both the upper end plate and the lower end plate. The upper end plate and the lower end plate are sleeved on the columns through the through holes. Among them, the upper end plate is slidably arranged above the lower end plate. The lower end surface of the upper end plate and the upper end surface of the lower end plate jointly define a mirror clamping area for clamping the mirror. A limiting groove adapted to the side of the mirror is provided on one side of the upper end plate and / or the lower end plate adjacent to the mirror clamping area.

[0008] According to a preferred embodiment, the system further includes a base, which is disposed below the lower end plate. The base has mounting holes, and the lower end of the column is embedded in the mounting holes. A first screw hole is provided at the corner of the base, and the base is mounted on the test bench via a first screw that is adapted to the first screw hole.

[0009] According to a preferred embodiment, the limiting groove is a V-shaped groove, U-shaped groove, or annular groove opened along the width direction of the upper and lower end plates.

[0010] According to a preferred embodiment, the device further includes a display module, and a pressure sensor is provided in the limiting groove, the pressure sensor being electrically connected to the display module.

[0011] According to a preferred embodiment, the pressure sensor is a piezoelectric thin film sensor.

[0012] According to a preferred embodiment, both the upper end plate and the lower end plate are composed of an L-shaped base and a movable seat. The movable seat is slidably disposed at the long end of the L-shaped base, the limiting groove is opened at the long end of the L-shaped base, and the short end of the L-shaped base is sleeved on the column.

[0013] According to a preferred embodiment, the short end of the L-shaped base is provided with a second screw hole along its width direction, and the movable seat is slidably disposed at the long end of the L-shaped base via a second screw adapted to the second screw hole.

[0014] According to a preferred embodiment, the long end of the L-shaped base is provided with a scale.

[0015] According to a preferred embodiment, a third screw hole is provided on the short end side of the L-shaped base, and the short end of the L-shaped base is installed on the column via a third screw that is adapted to the third screw hole.

[0016] According to a preferred embodiment, it also includes a knob-type locking ring, which is threadedly connected to the top of the column.

[0017] The technical solution of the reflector clamping fixture for plane mirror transmission surface shape detection provided by this utility model has at least the following advantages and beneficial effects: (1) The upper end plate and the lower end plate are sleeved on the column through holes to form a "frame" support structure, ensuring the parallelism of the upper end plate and the lower end plate and avoiding clamping deviation caused by the inclination of the fixture itself; (2) The size of the mirror clamping area can be flexibly adjusted to adapt to light-emitting mirrors of different shapes and sizes, thus expanding the applicability of this clamping fixture; (3) The design of the limiting groove to adapt to the side of the reflector can be compatible with reflectors of different contours such as square and round, breaking through the limitations of general fixtures. (4) The pressure sensor monitors the pressure when clamping the reflector in real time and displays it through the display module, so that the operator can grasp the clamping force and avoid damage to the reflector due to excessive clamping force or loosening of the reflector due to insufficient clamping force; (5) By adjusting the position of the moving seat and the position of the L-shaped base on the column, the pitch angle of the reflector can be adjusted to ensure the accuracy of the optical path; (6) The scale set on the L-shaped base can quantify the sliding distance of the moving seat, thereby indirectly reflecting the change in the pitch angle of the reflector, so that the operator can accurately control the adjustment range. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the mirror clamping fixture provided in Embodiment 1 of this utility model;

[0019] Figure 2 This is a side view of the mirror clamping fixture provided in Embodiment 2 of this utility model;

[0020] Figure 3 Rear view of the mirror clamping fixture provided in Embodiment 2 of this utility model;

[0021] Figure 4 This is a top view of the mirror clamping fixture provided in Embodiment 2 of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of the mirror clamping fixture provided in Embodiment 3 of this utility model;

[0023] Reference numerals: 100-Upper end plate, 110-Through hole, 120-Limiting groove, 130-L-shaped base, 140-Moving seat, 150-Second screw, 160-Scale, 170-Third screw, 200-Lower end plate, 300-Column, 310-Turn-type locking ring, 400-Base, 410-First screw hole, 500-Mirror clamping area, 600-Reflector. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Example 1

[0026] This embodiment provides a 600-type reflector clamping fixture for detecting the transmissive surface shape of a plane mirror. Figure 1 This is a schematic diagram of the overall structure of the 600-type mirror clamping fixture for detecting the transmission surface shape of a plane mirror. (See attached diagram) Figure 1 As shown, the reflector 600 clamping fixture for plane mirror transmission surface shape detection includes an upper end plate 100, a lower end plate 200, and at least two columns 300.

[0027] In this embodiment, at least two through holes 110 are provided on both the upper end plate 100 and the lower end plate 200. The upper end plate 100 and the lower end plate 200 are sleeved on the column 300 through the through holes 110 to form a "frame" support structure, which ensures the parallelism of the upper end plate 100 and the lower end plate 200 and avoids clamping deviation caused by the inclination of the tooling itself.

[0028] The upper end plate 100 is slidably disposed above the lower end plate 200. The lower end surface of the upper end plate 100 and the upper end surface of the lower end plate 200 together define a mirror clamping area 500 for clamping the reflector 600. The size of the mirror clamping area 500 can be flexibly adjusted to accommodate light-emitting mirrors of different shapes and sizes, thus expanding the applicability of this clamping fixture.

[0029] Furthermore, the upper end plate 100 and / or the lower end plate 200 are provided with a limiting groove 120 adapted to the side of the reflector 600 on one side adjacent to the mirror clamping area 500; specifically, the design of the limiting groove 120 to adapt to the side of the reflector 600 can accommodate reflectors 600 with different contours such as square and round, breaking through the shape limitation of general clamps; in this embodiment, the limiting groove 120 is a V-shaped groove, U-shaped groove or annular groove opened along the width direction of the upper and lower end plates 200.

[0030] In some embodiments, the reflector 600 clamping fixture is mounted on a test bench for use with a laser interferometer. Specifically, the reflector 600 clamping fixture also includes a base 400, which is located below the lower end plate 200. The base 400 has mounting holes, and the lower end of the column 300 is embedded in the mounting holes. The base 400 has first screw holes 410 at its corners. The base 400 is mounted on the test bench via first screws that are adapted to the first screw holes 410, and the tilt of the entire reflector 600 clamping fixture can be adjusted to facilitate testing with a laser interferometer.

[0031] Considering that the reflector 600 is thin and its film layer is brittle, excessive clamping pressure can easily lead to surface distortion of the reflector 600. Therefore, this embodiment includes a pressure sensor in the limiting groove 120 to monitor the pressure applied when clamping the reflector 600 in real time and display the data through a display module. This allows operators to easily control the clamping force and avoid damage to the reflector 600 due to excessive clamping force or loosening of the reflector 600 due to insufficient clamping force. In some embodiments, the pressure sensor is a piezoelectric thin film sensor, which is installed in the limiting groove 120 to collect pressure data.

[0032] Example 2

[0033] This embodiment, based on the technical solution provided in Embodiment 1, further explains the structure of the upper end plate 100 and the lower end plate 200:

[0034] In this embodiment, see Figure 2 As shown, both the upper end plate 100 and the lower end plate 200 are composed of an L-shaped base 130 and a movable base 140. The movable base 140 is slidably disposed at the long end of the L-shaped base 130, and the limiting groove 120 is formed at the long end of the L-shaped base 130. The short end of the L-shaped base 130 is sleeved on the column 300. Specifically, by reasonably adjusting the position of the movable base 140 and the position of the L-shaped base 130 on the column 300, the pitch angle of the reflector 600 can be adjusted to ensure the accuracy of the optical path.

[0035] See Figure 3 and Figure 4As shown, the short end of the L-shaped base 130 has a second screw hole along its width direction, and the movable seat 140 is slidably mounted on the long end of the L-shaped base 130 via a second screw 150 adapted to the second screw hole. In this embodiment, the second screw 150 pushes the movable seat 140 to adjust the pitch angle of the reflector 600, thereby flexibly adapting to the optical requirements of different detection scenarios and enhancing the versatility of the tooling. Furthermore, the long end of the L-shaped base 130 is provided with a scale 160 to quantify the sliding distance of the movable seat 140, thereby indirectly reflecting the change in the pitch angle of the reflector 600, facilitating precise control of the adjustment range by the operator.

[0036] Example 3

[0037] This embodiment describes the movement limit of the upper and lower end plates 200 based on the technical solution provided in Embodiment 2:

[0038] In one embodiment of this example, see Figure 5 As shown, the short end of the L-shaped base 130 has a third screw hole. The short end of the L-shaped base 130 is mounted on the column 300 via a third screw 170 that matches the third screw hole. The third screw 170, passing through the third screw hole, can tighten or loosen the column 300. When adjusting the overall height of the upper end plate 100 and the lower end plate 200, loosening the third screw 170 allows the L-shaped base 130 to slide up and down along the column 300. After adjusting to a suitable height, tightening the third screw 170 securely fixes the L-shaped base 130 to the column 300. This structure allows operators to precisely adjust the installation height of the reflector 600 according to testing requirements, such as the height of the plane mirror under test or the optical path position of the laser interferometer, ensuring that the reflector 600 is in the optimal optical path position and avoiding testing errors caused by height deviations.

[0039] In another embodiment, a knob-type locking ring 310 is provided at the top of the column 300, and the knob-type locking ring 310 is threadedly connected to the top of the column 300. After the knob-type locking ring 310 is tightened, it can press down on the upper surface of the upper end plate 100, forming a stable "clamping" structure with the lower end plate 200. The above fixing method can effectively prevent the upper end plate 100 from shifting vertically on the column 300, especially during the testing process due to vibration or external force causing the upper end plate 100 to loosen, ensuring that the position of the mirror clamping area 500 remains stable, and preventing the reflector 600 from shaking or deforming due to the displacement of the upper end plate 100.

[0040] Example 4

[0041] This embodiment describes the design parameters of the mirror 600 clamping fixture based on the technical solution provided in Embodiment 3:

[0042] In some embodiments, the base 400 is a cuboid with a side length of 200mm and a thickness of 20mm, the column 300 has an overall length of 368mm, the length of the mounting hole embedded in the base 400 is 18mm, and the upper and lower end plates 200 have a length of 210mm, a width of 70mm, and a thickness of 25mm.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mirror (600) clamping fixture for detecting the transmissive surface shape of a plane mirror, characterized in that, Includes an upper end plate (100), a lower end plate (200), and at least two uprights (300); At least two through holes (110) are provided on both the upper end plate (100) and the lower end plate (200). The upper end plate (100) and the lower end plate (200) are sleeved on the column (300) through the through holes (110). The upper end plate (100) is slidably disposed above the lower end plate (200). The lower end surface of the upper end plate (100) and the upper end surface of the lower end plate (200) together define a mirror clamping area (500) for clamping the reflector (600). A limiting groove (120) adapted to the side of the reflector (600) is provided on the side of the upper end plate (100) and / or the lower end plate (200) adjacent to the mirror clamping area (500).

2. The mirror (600) holding tool for flat mirror transmissive surface shape inspection according to claim 1, wherein It also includes a base (400), which is located below the lower end plate (200). The base (400) has mounting holes, and the lower end of the column (300) is embedded in the mounting holes. The base (400) has a first screw hole (410) at its corner, and the base (400) is mounted on the test bench via a first screw that is adapted to the first screw hole (410).

3. The mirror (600) holding tool for flat mirror transmissive surface shape inspection according to claim 1, wherein The limiting groove (120) is a V-shaped groove, U-shaped groove or annular groove opened along the width direction of the upper and lower end plates (200).

4. The mirror (600) holding tool for flat mirror transmissive surface shape inspection according to claim 1, wherein It also includes a display module, and a pressure sensor is provided in the limiting groove (120), and the pressure sensor is electrically connected to the display module.

5. The mirror (600) holding tool for flat mirror transmissive surface shape detection according to claim 4, wherein The pressure sensor is a piezoelectric thin film sensor.

6. The mirror (600) holding tool for flat mirror transmissive surface shape inspection according to any one of claims 1 to 5, characterized in that, The upper end plate (100) and the lower end plate (200) are both composed of an L-shaped base (130) and a movable seat (140). The movable seat (140) is slidably disposed at the long end of the L-shaped base (130). The limiting groove (120) is opened at the long end of the L-shaped base (130). The short end of the L-shaped base (130) is sleeved on the column (300).

7. The mirror (600) holding tool for flat mirror transmissive surface shape detection according to claim 6, wherein The short end of the L-shaped base (130) is provided with a second screw hole along its width direction, and the movable seat (140) is slidably disposed at the long end of the L-shaped base (130) via a second screw (150) adapted to the second screw hole.

8. The mirror (600) holding tool for flat mirror transmissive surface shape inspection according to claim 6, wherein The long end of the L-shaped base (130) is provided with a scale (160).

9. The mirror (600) clamping fixture for detecting the transmissive surface shape of a plane mirror as described in claim 6, characterized in that, The short end of the L-shaped base (130) is provided with a third screw hole, and the short end of the L-shaped base (130) is installed on the column (300) via a third screw (170) that is adapted to the third screw hole.

10. The mirror (600) clamping fixture for detecting the transmissive surface shape of a plane mirror as described in claim 6, characterized in that, It also includes a knob-type locking ring (310), which is threaded to the top of the column (300).

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