Prism assembling and positioning tool

Abstract

The utility model belongs to the technical field of prism assembly, and particularly relates to a prism assembly positioning tool which comprises a bottom plate, the upper side of the bottom plate is fixedly connected with an installation station, the upper side of the installation station is provided with two first datum planes, and the upper side of the bottom plate is fixedly connected with a positioning block located on one side of the installation station. The upper side of the bottom plate is further fixedly connected with two prism pressurizing mechanisms, each prism pressurizing mechanism comprises a stand column fixedly connected to the upper side of the bottom plate, the upper side of each stand column is provided with a positioning inclined face, each positioning inclined face is provided with a threaded hole, and the interior of each threaded hole is in threaded connection with a threaded knob. The outer side of the threaded knob is rotationally connected with a pressing plate, and the end of the pressing plate is fixedly connected with a limiting piece. According to the utility model, the prism combination structure placed in the V-shaped station can be simply and rapidly positioned, and the problems of deviation and dislocation of the prism in the assembling process are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of prism assembly technology, specifically relating to a prism assembly positioning fixture. Background Technology

[0002] Precise positioning is crucial for ensuring the performance and quality of the prism assembly structure during prism assembly. As the precision requirements of optical instruments continue to increase, higher standards are being set for the accuracy and efficiency of prism assembly positioning. Traditional prism assembly positioning methods rely heavily on manual experience, which not only makes it difficult to guarantee positioning accuracy but also results in low production efficiency, failing to meet the demands of large-scale production.

[0003] For example, some simple tooling only provides a basic placement position and lacks precise positioning references and effective pressure fixing measures, which makes it easy for prisms to shift or misalign during assembly, affecting the optical performance of the final product. Utility Model Content

[0004] The purpose of this invention is to provide a prism assembly positioning fixture that can easily and quickly position the prism assembly structure placed inside the V-shaped workstation, reducing the offset and misalignment problems that occur during the assembly process.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A prism assembly and positioning fixture includes a base plate, an installation station fixedly connected to the upper side of the base plate, two reference surfaces one being formed on the upper side of the installation station, a positioning block located on one side of the installation station fixedly connected to the upper side of the base plate, the side of the positioning block facing the installation station being a reference surface two, and two prism pressing mechanisms also fixedly connected to the upper side of the base plate.

[0007] Furthermore, the prism pressurizing mechanism includes a column fixedly connected to the upper side of the base plate. A positioning inclined surface is provided on the upper side of the column, and a threaded hole is provided on the positioning inclined surface. A threaded knob is threadedly connected inside the threaded hole, and a pressure plate is rotatably connected to the outer side of the threaded knob.

[0008] Furthermore, a limiting piece is fixedly connected to the end of the pressure plate.

[0009] Furthermore, a limiting piece is fixedly connected to the end of the pressure plate.

[0010] Furthermore, a slide rail is fixedly connected to the upper side of the base plate. The slide rail is located on the side of the installation position away from the positioning block, and an extrusion block is slidably connected to the slide rail.

[0011] Furthermore, a fixing block is fixedly connected to the upper side of the base plate and to one side of the slide rail, and a limit screw is threaded onto the fixing block.

[0012] Furthermore, camera positioning bracket one and camera positioning bracket two are also fixedly connected to the base plate.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model provides a prism assembly and positioning fixture. By setting reference surface one and reference surface two on the installation station and positioning block, it can cooperate with the prism pressurization mechanism to simply and quickly position the prism assembly structure placed inside the V-shaped station, reducing the offset and misalignment problems that occur during the assembly process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Base plate; 2. Installation station; 3. Reference surface one; 4. Column; 5. Positioning slope; 6. Stop bar; 7. Pressure plate; 8. Threaded knob; 9. Limiting plate; 10. Slide rail; 11. Extrusion block; 12. Fixing block; 13. Limiting screw; 14. Camera positioning bracket one; 15. Camera positioning bracket two; 16. Positioning block. Detailed Implementation

[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0021] like Figures 1-3 As shown, a prism assembly and positioning fixture includes a base plate 1. An installation station 2 is fixedly connected to the upper side of the base plate 1. Two reference surfaces 3 are provided on the upper side of the installation station 2. The included angle between the two reference surfaces 3 is preferably 90°. The two reference surfaces 3 form a V-shaped station. The prism assembly structure after the first prism and the second prism are glued together can be placed inside the V-shaped station, so that the right-angle polished surface of the first prism abuts against the two reference surfaces 3 respectively.

[0022] A positioning block 16 is fixedly connected to the upper side of the base plate 1, located on one side of the installation station 2. The side of the positioning block 16 facing the installation station 2 is the reference surface 2. The middle frosted side of the first prism abuts against the reference surface 2. At this time, the prism assembly structure placed inside the V-shaped station can be positioned by the two reference surfaces 1 3 and one reference surface 2, reducing the offset and misalignment problems that occur during the assembly of the prism.

[0023] Two prism pressurization mechanisms are also fixedly connected to the upper side of the base plate 1, which are used to pressurize the combined structure respectively.

[0024] Specifically, such as Figures 1-3 As shown, the prism pressurization mechanism includes a column 4 fixedly connected to the upper side of the base plate 1. A positioning inclined surface 5 is provided on the upper side of the column 4. A threaded hole is provided on the positioning inclined surface 5. A threaded knob 8 is threadedly connected inside the threaded hole. A pressure plate 7 is rotatably connected to the outside of the threaded knob 8. At this time, by rotating the threaded knob 8, the pressure plate 7 can be moved to pressurize the prism. The structure is relatively simple and the operation is relatively convenient.

[0025] A stop bar 6 is fixedly connected to the lower side of the positioning inclined surface 5 to limit the lower edge of the pressure plate 7 and control the angle of the pressure plate 7.

[0026] The end of the pressure plate 7 can be fixedly connected to the limiting piece 9. At this time, the two sides of the pressure plate 7 can be positioned by the limiting piece 9 and the stop strip 6, so that the pressure plate 7 can be easily aligned with the positioning slope 5. When the pressure plate 7 and the positioning slope 5 are aligned, the threaded knob 8 and the threaded hole on the positioning slope 5 can be aligned.

[0027] like Figure 1 As shown, a slide rail 10 is also fixedly connected to the upper side of the base plate 1. The slide rail 10 is located on the side of the installation station 2 away from the positioning block 16. An extrusion block 11 is slidably connected to the slide rail 10. At this time, the metal parts with glue can be installed on the extrusion block 11. The installation method can be snap-fit ​​or hanging. Move the extrusion block 11 so that the side of the metal parts with glue on the extrusion block 11 abuts against the prism assembly structure, so that the prism assembly structure can be pressurized and the metal parts and the prism assembly structure can be fixed together.

[0028] Meanwhile, the extrusion block 11 can also be placed directly on the other frosted surface of the prism, away from the positioning block 16.

[0029] A fixing block 12 is fixedly connected to the upper side of the base plate 1 and to one side of the slide rail 10. A limit screw 13 is threaded onto the fixing block 12. By the limit screw 13 abutting against the pressing block 11, the pressing block 11 can be positioned, thereby locking the pressing force applied by the pressing block 11 to the metal part.

[0030] At the same time, such as Figures 1-2As shown, camera positioning bracket 14 and camera positioning bracket 2 15 are also fixedly connected to the base plate 1. Cameras can be fixedly connected to both camera positioning bracket 14 and camera positioning bracket 2 15. The positions of the two prisms are collected by the two cameras respectively to calibrate the positions of the prisms.

[0031] The working principle of this utility model is as follows: Apply NOA61 glue to the center of both ends of prism one, and then slowly and steadily bring the convex optical surfaces of the two prisms two parallel to the glue surface of one point of the prism. When the entire convex optical surface of prism two is wetted with glue, tiny air bubbles may appear in the glue layer during the glue application process. You can slowly move the relative position of prism two and prism one to slowly remove excess glue and air bubbles at the same time. Note that the glue cannot be discharged indefinitely.

[0032] Place prism one in the V-shaped station, with the middle frosted side and the two 90° right-angle polished surfaces as references. It must be in contact with the three reference surfaces. Install pressure plate 7 to pressurize and limit the prism.

[0033] Then, the prism assembly structure is pre-cured using 365nm ultraviolet light for 125 seconds, until prism two and prism one are temporarily and firmly fixed together.

[0034] Apply NOA61 glue to the metal part. Place the metal part against the other frosted surface of the prism, and simultaneously move the extrusion block 11 so that it abuts against the other frosted surface of the prism, thus fixing the metal part onto the prism. Then, pre-cur it for 125 seconds under 365nm ultraviolet light, curing until the metal part and the prism are temporarily and firmly fixed together. After curing, remove and clean the prism assembly structure, and then place it in a deep curing chamber for 4 hours.

[0035] In summary, this technical solution, by setting reference surface 3 and reference surface 2 on the installation station 2 and the positioning block 16, can cooperate with the prism pressurization mechanism to simply and quickly position the prism assembly structure placed inside the V-shaped station, reducing the offset and misalignment problems that occur during the assembly process of the prism.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A prism assembly and positioning fixture, characterized in that: Includes a base plate (1), an installation station (2) is fixedly connected to the upper side of the base plate (1), two reference surfaces (3) are opened on the upper side of the installation station (2), a positioning block (16) located on one side of the installation station (2) is fixedly connected to the upper side of the base plate (1), the side of the positioning block (16) facing the installation station (2) is the second reference surface, and two prism pressurizing mechanisms are also fixedly connected to the upper side of the base plate (1).

2. The prism assembly and positioning fixture according to claim 1, characterized in that: The included angle between the two reference planes (3) is 90°.

3. The prism assembly and positioning fixture according to claim 1, characterized in that: The prism pressurization mechanism includes a column (4) fixedly connected to the upper side of the base plate (1). A positioning inclined surface (5) is provided on the upper side of the column (4). A threaded hole is provided on the positioning inclined surface (5). A threaded knob (8) is threadedly connected inside the threaded hole. A pressure plate (7) is rotatably connected to the outer side of the threaded knob (8).

4. The prism assembly and positioning fixture according to claim 3, characterized in that: Limiting plates (9) are fixedly connected to the end of the pressure plate (7).

5. A prism assembly and positioning fixture according to claim 3, characterized in that: Limiting plates (9) are fixedly connected to the end of the pressure plate (7).

6. The prism assembly and positioning fixture according to claim 1, characterized in that: The upper side of the base plate (1) is also fixedly connected to a slide rail (10), the slide rail (10) is located on the side of the installation station (2) away from the positioning block (16), and an extrusion block (11) is slidably connected on the slide rail (10).

7. A prism assembly and positioning fixture according to claim 6, characterized in that: A fixing block (12) is fixedly connected to the upper side of the base plate (1) and to one side of the slide rail (10), and a limit screw (13) is threaded onto the fixing block (12).

8. A prism assembly and positioning fixture according to claim 1, characterized in that: The base plate (1) is also fixedly connected to a camera positioning bracket one (14) and a camera positioning bracket two (15).

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