An optical reference tool

Abstract

The present invention discloses an optical reference fixture, belonging to the technical field of optical adjustment fixtures. The optical reference fixture primarily comprises a translation assembly, an azimuth assembly, and a pitch assembly. The translation assembly implements displacement positioning, the azimuth assembly implements azimuth positioning, and the pitch assembly implements pitch positioning. These three positioning functions, combined, ultimately achieve three-degree-of-freedom adjustment of the light source.

Description

Technical Field

[0001] The present invention relates to the technical field of optical adjustment tooling, and in particular to an optical reference tooling. Background Art

[0002] During the integration of optomechanical components or instrument experiments, the optical components need to be installed in the correct position to avoid damage caused by collisions between components or instruments, as well as useless work such as repeated disassembly and assembly attempts. At present, the common implementation for specifying the orientation of the installation of optomechanical components is to attach a line light source or a point light source to a universal arm or directly install it in a fixed position, and use the light or light spot it emits as a reference for integration experiments. During long-term integration work or experiments, the universal arm will become loose and unstable, causing the cursor to drift and need to be readjusted. When the light source is directly installed in a fixed position, the light source loses its adjustment function, affecting its versatility. In order to ensure that optomechanical components or instruments are correctly positioned without the above shortcomings, an optical reference fixture is required to meet the following requirements:

[0003] a. The tooling should be economical and have low production costs;

[0004] b. The tooling should be small in size and light in weight;

[0005] c. The fixture should have good long-term stability after clamping the light source;

[0006] d. The tooling has a simple structure and is easy to operate;

[0007] e. The tooling should have multi-degree-of-freedom adjustment function to meet the needs of different working conditions.

[0008] However, using a purchased universal arm is not only expensive but also unstable. Mounting the light source directly in a fixed position also loses its adjustability, making it suitable only for small-scale work. Therefore, an optical reference fixture was needed to meet these requirements and ensure the smooth progress of work and experiments. Summary of the Invention

[0009] The purpose of the present invention is to solve the technical problems existing in the prior art by providing an optical reference fixture with a simplified structure, light weight, miniaturization and easy operation.

[0010] To achieve the above-mentioned purpose, the present invention provides an optical reference fixture, and the specific technical solution is as follows:

[0011] An optical reference fixture, comprising:

[0012] The translation assembly comprises: a base, a slide and an adjusting screw, the bottom of the base is fixedly connected to the base, the top of the base is provided with a mounting groove, a pair of guide shafts are arranged in the mounting groove along its length direction, and the two ends of the guide shafts are respectively fixed in the openings on the inner wall of the mounting groove; the two sides of the slide are sleeved on the guide shafts and can move linearly along the guide shafts; the side walls of the mounting groove are provided with translation threaded holes, the adjusting screws are screwed into the translation threaded holes and contact the side surfaces of the slide, a spring is sleeved on the side of the guide shaft away from the adjusting screw, and the spring is in a compressed state when in use; the top of the slide is fixedly connected to the adapter plate;

[0013] The first azimuth component is fixedly connected to the top of the translation component; the first azimuth component comprises: a rotating base, a rotating disk, a rotating shaft, an arc-shaped hole, a locking pin and a shift lever, the rotating base is fixedly connected to the top of the adapter plate, a circular hole is opened in the middle of the rotating base, the rotating disk is arranged above the rotating base, and a rotating shaft is fixedly connected at the center of the bottom of the rotating disk, and the rotating shaft cooperates with the gap in the circular hole; the shift lever is fixedly connected to the side of the rotating disk for driving the rotating disk to rotate; an arc-shaped hole concentric with the rotating disk is opened on the rotating disk, and a locking pin is arranged in the arc-shaped hole, and the locking pin is threadedly connected to the threaded hole on the rotating base for locking the rotating disk to rotate;

[0014] A pitch assembly, which is vertically fixed above the azimuth assembly via an L bracket and is used to clamp the light source and adjust the pitch angle of the light source; the L bracket includes: a horizontal plate and a vertical plate fixed vertically thereto, and the horizontal plate is fixed to the top of the rotating disk in the first azimuth assembly;

[0015] The pitch assembly includes: a clamping base plate, a clamping top plate and a second azimuth assembly. The second azimuth assembly has the same structure as the first azimuth assembly. The second azimuth assembly is fixed on the vertical plate along the vertical direction. The rotating disk in the second azimuth assembly is fixedly connected to the clamping base plate. The other side of the clamping base plate is connected to the clamping top plate, and a light source clamping space is provided between the two.

[0016] Furthermore, through holes are respectively opened on both sides of the slide, and a pair of guide shafts pass through the through holes respectively.

[0017] Furthermore, the inner sides of the clamping bottom plate and the clamping top plate are both provided with U-shaped grooves for clamping the light source.

[0018] Beneficial effects of the present invention

[0019] The optical reference fixture mainly consists of a translation component, an azimuth component, and a pitch component. The translation component realizes displacement positioning, the azimuth component realizes azimuth positioning, and the pitch component realizes pitch positioning. The three positioning functions are integrated to ultimately realize the three-degree-of-freedom adjustment function of the light source.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The optical reference tooling proposed by the present invention has good economic efficiency and low production cost;

[0022] 2. The optical reference fixture proposed by the present invention has good miniaturization and lightweight effects;

[0023] 3. The optical reference fixture proposed by the present invention has small drift and good stability;

[0024] 4. The optical reference fixture proposed in the present invention has a simple structure design and is easy to operate;

[0025] 5. The optical reference fixture proposed in the present invention has a three-degree-of-freedom adjustment function and is highly versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the overall structure of the optical reference tooling provided by the present invention;

[0027] Figure 2 A schematic structural diagram of the translation assembly provided by the present invention;

[0028] Figure 3 A disassembled diagram of the translation assembly provided by the present invention;

[0029] Figure 4 A cross-sectional view of a first orientation component provided by the present invention;

[0030] Figure 5 A schematic diagram of the first component structure provided by the present invention;

[0031] Figure 6 This is a disassembled diagram of the pitch assembly provided by the present invention.

[0032] In the figure,

[0033] 1. Translation assembly; 2. First azimuth assembly; 3. Pitch assembly; 4. L bracket; 5. Light source; 6. Second azimuth assembly;

[0034] 11. Base; 12. Mounting groove; 13. Guide shaft; 14. Translation threaded hole; 15. Slide plate; 16. Through hole; 17. Spring; 18. Adjustment screw; 19. Adapter plate;

[0035] 21. Rotating seat; 22. Rotating plate; 23. Rotating shaft; 24. Arc hole; 25. Locking pin; 26. Push rod; 27. Round hole;

[0036] 31. Clamp the bottom plate; 32. Clamp the top plate. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] It should be noted that the terms "upper", "one side", etc. used in this article to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for illustrative purposes, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the invention.

[0039] See also Figures 1-6 ;

[0040] An optical reference fixture, comprising:

[0041] The translation assembly 1 comprises: a base 11, a slide 15 and an adjustment screw 18. The bottom of the base 11 is fixedly connected to the pedestal, and a mounting groove 12 is provided at the top thereof. A pair of guide shafts 13 are arranged along the length of the mounting groove 12, and the ends of the guide shafts 13 are respectively fixed in the openings on the inner wall of the mounting groove 12; the two sides of the slide 15 are sleeved on the guide shafts 13 and can move linearly along the guide shafts 13; further, through holes 16 are respectively provided on both sides of the slide 15, and the pair of guide shafts 13 respectively pass through the through holes 16. A translation threaded hole 14 is provided on the side wall of the mounting groove 12, and the adjustment screw 18 is screwed into the translation threaded hole 14 and contacts the side of the slide 15. A spring 17 is sleeved on the side of the guide shaft 13 away from the adjustment screw 18, and the spring 17 is in a compressed state when in use; an adapter plate 19 is fixedly connected to the top of the slide 15;

[0042] The first orientation component 2, the first orientation component 2 is fixedly connected to the top of the translation component 1; the first orientation component 2 includes: a rotating base 21, a rotating disk 22, a rotating shaft 23, an arc-shaped hole 24, a locking pin 25 and a shift lever 26, the rotating base 21 is fixedly connected to the top of the adapter plate 19, a circular hole 27 is opened in the middle of the rotating base 21, the rotating disk 22 is arranged above the rotating base 21, and the rotating shaft 23 is fixedly connected at the bottom center of the rotating disk 22, and the rotating shaft 23 is used in conjunction with the circular hole 27; the shift lever 26 is fixedly connected to the side of the rotating disk 22 for driving the rotating disk 22 to rotate; the rotating disk 22 is provided with an arc-shaped hole 24 concentric with the rotating disk 22, and a locking pin 25 is arranged in the arc-shaped hole 24, and the locking pin 25 is threadedly connected to the threaded hole on the rotating base 21 for locking the rotating disk 22 to rotate;

[0043] A pitch assembly 3 is vertically fixed above the azimuth assembly 2 via an L-shaped bracket 4, and is used to clamp the light source 5 and adjust the pitch angle of the light source 5. The L-shaped bracket 4 includes a horizontal plate 41 and a vertical plate 42 fixed vertically thereto. The horizontal plate 41 is fixed to the top of the rotating disk 22 in the first azimuth assembly 2.

[0044] The pitch assembly 3 includes: a clamping base plate 31, a clamping top plate 32, and a second azimuth assembly 6. The second azimuth assembly 6 has the same structure as the first azimuth assembly 2 and is vertically fixed to the upright plate 42. The rotating disk 22 in the second azimuth assembly 6 is fixedly connected to the clamping base plate 31. The clamping top plate 32 is connected to the other side of the clamping base plate 31, and a clamping space for the light source 5 is provided between the two. Furthermore, the inner sides of the clamping base plate 31 and the clamping top plate 32 are each provided with a U-shaped groove for clamping the light source 5.

[0045] Instructions for use: By turning the adjusting screw 18 forward, the slide 15 and the first azimuth assembly 2 and pitch assembly 3 connected thereto are driven to move in a forward linear motion along the guide shaft 13, thereby further compressing the spring 17; by turning the adjusting screw 18 backward, the slide 15 slides in the reverse direction under the force of the spring 17 until it contacts and is pressed against the adjusting screw 18, thereby being fixed in position;

[0046] By toggling the lever 26 in the first azimuth assembly 2, the rotating disk 22 and the L bracket 4 and the pitch assembly 3 connected thereto rotate synchronously around the rotating axis 23. At the same time, the locking pin 25 slides in the arc hole 24 to adjust the light source 5 to a suitable angle. After completion, the locking pin 25 is tightened to fix the position.

[0047] By toggling the lever in the second orientation component 6, the rotating disk in the component rotates, and the light source 5 is synchronously driven to adjust the pitch angle. After the adjustment is completed, the locking nail is tightened to fix the position.

Claims

1. An optical reference fixture, characterized in that: include: The translation assembly (1) comprises: a base (11), a slide plate (15) and an adjusting screw (18); the bottom of the base (11) is fixedly connected to the base, and a mounting groove (12) is provided on the top of the base; a pair of guide shafts (13) are arranged in the mounting groove (12) along its length direction, and the two ends of the guide shafts (13) are respectively fixed in the openings on the inner wall of the mounting groove (12); the two sides of the slide plate (15) are sleeved on the guide shafts (13) and can perform linear motion along the guide shafts (13); a translation threaded hole (14) is provided on the side wall of the mounting groove (12), the adjusting screw (18) is screwed into the translation threaded hole (14) and contacts the side of the slide plate (15); a spring (17) is sleeved on the side of the guide shaft (13) away from the adjusting screw (18), and the spring (17) is in a compressed state when in use; the top of the slide plate (15) is fixedly connected to the adapter plate (19); A first orientation component (2), the first orientation component (2) is fixedly connected to the top of the translation component (1); the first orientation component (2) comprises: a rotating base (21), a rotating disk (22), a rotating shaft (23), an arc-shaped hole (24), a locking pin (25) and a shifting rod (26); the rotating base (21) is fixedly connected above the adapter plate (19); a circular hole (27) is opened in the middle of the rotating base (21); the rotating disk (22) is arranged above the rotating base (21); the rotating disk ( A rotating shaft (23) is fixedly connected to the center of the bottom of the rotating disk (22), and the rotating shaft (23) is used in conjunction with the circular hole (27) through a gap; the shifting rod (26) is fixedly connected to the side of the rotating disk (22) and is used to drive the rotating disk (22) to rotate; an arc-shaped hole (24) concentric with the rotating disk (22) is opened on the rotating disk (22), and a locking nail (25) is arranged in the arc-shaped hole (24), and the locking nail (25) is screwed into the threaded hole on the rotating base (21) to lock the rotating disk (22) from rotating; A pitch assembly (3), the pitch assembly (3) being vertically fixed above the azimuth assembly (2) via an L bracket (4), and being used for clamping a light source (5) and adjusting the pitch angle of the light source (5); the L bracket (4) comprising: a horizontal plate (41) and a vertical plate (42) vertically fixed thereto; the horizontal plate (41) being fixed to the top of a rotating disk (22) in the first azimuth assembly (2); The pitch assembly (3) comprises: a clamping bottom plate (31), a clamping top plate (32) and a second orientation assembly (6). The second orientation assembly (6) has the same structure as the first orientation assembly (2). The second orientation assembly (6) is fixed on the vertical plate (42) in the vertical direction. The rotating disk (22) in the second orientation assembly (6) is fixedly connected to the clamping bottom plate (31). The other side of the clamping bottom plate (31) is connected to the clamping top plate (32), and a light source (5) clamping space is provided between the two.

2. An optical reference fixture according to claim 1, characterized in that: Through holes (16) are respectively formed on both sides of the slide plate (15), and a pair of guide shafts (13) pass through the through holes (16) respectively.

3. The optical reference fixture according to claim 1, characterized in that: The inner sides of the clamping bottom plate (31) and the clamping top plate (32) are both provided with U-shaped grooves for clamping the light source (5).

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