Positioning tool for plane mirror in reflex optical system

Abstract

A positioning tool for a plane mirror in a reflex optical system comprises a pressing plate, a pressing column, a measuring head and a flat plate, a through hole is formed in the center of the pressing plate, a vertical sliding rail is arranged in the through hole, the upper portion of the pressing column is a cake-shaped column head, a column body is arranged in the center of the bottom of the column head, and the column body is matched with a hole in the pressing plate and installed in the pressing plate in a sliding mode through a sliding block. The measuring head is embedded in the end part of the column body; the reflecting mirror frame provided with the plane reflecting mirror is inversely arranged on the flat plate, the pressing plate is placed on the reflecting mirror frame, the measuring head is pressed on the central area of the back face of the plane reflecting mirror, and the pressing plate is pressed on the reflecting mirror frame. After the combined body of the plane mirror and the reflector frame is inversely buckled on the flat plate, vertically downward force is respectively applied to the plane mirror and the reflector frame through the pressing column with the measuring head and the pressing plate, so that the requirement that the plane mirror and the reflector frame are coplanar is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical assembly and adjustment, and in particular relates to a positioning tool for a plane reflector in a folding optical system. Background Art

[0002] In order to ensure that the position and posture of the plane reflector in the optical-mechanical system meet the design requirements, the reflective surface of the plane reflector is required to be coplanar with the mounting surface of the reflector frame when the plane reflector is assembled. However, since silicone rubber is filled between the reflector and the reflector frame, it is difficult for the mounting surfaces of the two to meet the coplanar requirement. Therefore, a tool is required to position the plane reflector in the reflector frame and meet the coplanar requirement. Utility Model Content

[0003] The utility model aims to provide a positioning tool for a plane reflector in a folding optical system to meet the requirement that the reflective surface of the plane reflector is coplanar with the mounting surface of a reflector frame when the plane reflector is assembled.

[0004] A positioning tool for a plane reflector in a folding optical system, characterized in that it includes a pressure plate, a pressure column, a probe and a flat plate, the pressure plate is a rectangular parallelepiped, a through hole is provided at the center of the pressure plate, a vertical slide rail is arranged in the through hole, the upper part of the pressure column is a round pancake-shaped column head, a column body is arranged at the center of the bottom of the column head, the column body matches the hole on the pressure plate, and is slidably installed in the pressure plate through a slider, and the probe is embedded in the end of the column body; a flip mirror frame with a plane reflector installed is inverted on the flat plate, and the pressure plate is placed on the reflector frame so that the probe is pressed on the central area of ​​the back of the plane reflector, and the pressure plate is pressed on the reflector frame.

[0005] Furthermore, the pressing plate is a rectangular parallelepiped with a thickness of 20 mm, a width of 15 mm, and a length of 80 mm.

[0006] Furthermore, the column head diameter of the pressure column is 40 mm.

[0007] The beneficial effect of the utility model is that after the combination of the plane reflector and the reflector frame is inverted on the flat plate, the pressure column with the probe and the pressure plate respectively apply a vertical downward force to the plane reflector and the reflector frame, so as to meet the requirement that the plane reflector and the reflector frame installation surface are coplanar. Combined with silicone rubber, the positioned plane reflector is fixed in the reflector frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a cross-sectional view of the positioning fixture for positioning the reflector.

[0009] Figure 2 Schematic diagram of the installation of reflector frame and plane reflector.

[0010] Figure 3The figure is a schematic diagram of the structure of a positioning fixture for a plane reflector in a folding optical system.

[0011] Among them: 1- plane reflector, 2- reflector frame, 3- pressure plate, 4- pressure column, 5- probe, 6- flat plate. DETAILED DESCRIPTION

[0012] Embodiment 1: A positioning tool for a plane reflector in a folding optical system, comprising a pressure plate 3, a pressure column 4, a probe 5 and a flat plate 6. The pressure plate 3 is a rectangular parallelepiped, a through hole is provided at the center of the pressure plate 3, a vertical slide rail is arranged in the through hole, the upper 4 parts of the pressure column are a circular pancake-shaped column head, a column body is arranged at the center of the bottom of the column head, the column body matches the hole on the pressure plate 3, and is slidably installed in the pressure plate through a slider, and the probe 5 is inlaid and installed at the end of the column body.

[0013] Place the plane reflector 1 into the reflector frame 2, and insert six elastic gaskets at equal intervals in the gap between the two. The thickness of the elastic gaskets should be consistent with the gap, so that the plane reflector 1 is roughly centered. Turn the combination of the plane reflector 1 and the reflector frame 2 180° as a whole, and place it on the horizontally placed flat plate 6. Place the pressure plate 4 directly above the back of the plane reflector 1, so that the probe 5 is pressed on the central area of ​​the back of the plane reflector 1, and the pressure plate 3 is pressed on the reflector frame 2. Under the action of gravity, the reflective surface of the plane reflector 1 is coplanar with the mounting surface of the reflector frame 2. Apply three to four drops of silicone rubber at equal intervals in the gap between the back of the plane reflector 1 and the reflector frame 2, and let it stand for three hours. Remove the positioning fixture of the plane reflector, and turn the plane reflector 1 and the reflector frame 2 assembly 180°. Inject special silicone rubber into the gap between the plane reflector 1 and the reflector frame 2 and cure it. The reflector is installed and fixed.

Claims

1. A positioning fixture for a plane reflector in a folding optical system, characterized in that: It includes a pressing plate, a pressing column, a measuring head and a flat plate. The pressing plate is a rectangular parallelepiped. A through hole is provided at the center of the pressing plate. A vertical slide rail is arranged in the through hole. The upper part of the pressing column is a round pancake-shaped column head. A column body is arranged at the center of the bottom of the column head. The column body matches the hole on the pressing plate and is slidably installed in the pressing plate through a slider. The measuring head is inlaid and installed at the end of the column body. The flip mirror frame with a plane reflector is inverted on the flat plate, and the pressing plate is placed on the reflector frame so that the measuring head is pressed on the central area of ​​the back of the plane reflector, and the pressing plate is pressed on the reflector frame.

2. A positioning fixture for a plane reflector in a folding optical system as claimed in claim 1, characterized in that The pressing plate is a cuboid with a thickness of 20 mm, a width of 15 mm and a length of 80 mm.

3. A positioning fixture for a plane reflector in a folding optical system as claimed in claim 1, characterized in that The column head diameter of the pressure column is 40 mm.

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