Positioning mechanism for reflector machining

Abstract

The utility model discloses a positioning mechanism for reflector processing, which belongs to the technical field of lens processing and comprises a workbench, a mounting plate and a rotary positioning mechanism, the mounting plate is fixedly arranged at the top of the workbench, and the rotary positioning mechanism is arranged on the mounting plate; the rotating positioning mechanism comprises a rotating ring, sliding rails and a motor, a rotating groove is formed in the center of the mounting plate, the rotating ring is rotationally arranged in the rotating groove, four guide grooves are formed in the rotating ring, the sliding rails are fixedly arranged at the four opposite angles of the mounting plate and extend towards the center of the mounting plate, and a moving plate is slidably arranged on the sliding rails; a positioning block is arranged at the end, close to the center of the mounting plate, of the moving plate, a guide column is arranged at the bottom of the positioning block and arranged in the guide groove, and the motor is used for driving the rotating ring to rotate. The rotating ring rotates, the four positioning blocks can move towards the center or disperse outwards at the same time, multi-angle accurate positioning of the reflector is achieved, and the strict requirement for positioning accuracy in the reflector machining process is met.

Description

Technical Field

[0001] This utility model relates to the field of lens processing technology, and in particular to a positioning mechanism for mirror processing. Background Technology

[0002] A mirror is an optical element that uses the principle of mirror reflection to change the direction of light and to focus and collect light. Mirrors are widely used in many high-end fields such as astronomical observation, laser technology, and optical imaging. Even the slightest positioning deviation can cause serious problems such as inaccurate light reflection angle and blurred imaging in actual use, which in turn affects the performance of the entire optical system.

[0003] Chinese patent CN214980562U discloses an angle positioning device for mirror processing. The advantages are: since the clamping blocks can be detachably installed on the surface of the frame, different types of lenses can be clamped by different clamping blocks, which has a wide range of applications; the extension and retraction of the telescopic cylinder drives the processing plate to rotate, which facilitates the adjustment of the lens angle.

[0004] However, this patent also has the following problems: it can only achieve unidirectional left and right lens angle adjustment, while most reflectors are convex arc-shaped mirrors. When performing operations such as polishing, any part of the arc surface of the reflector needs to be polished evenly. Therefore, the unidirectional left and right adjustment of the above device is bound to be inflexible and have poor angle adjustment effect. Utility Model Content

[0005] This invention provides a positioning mechanism for mirror processing, which can solve the problem that the existing technology can only adjust the mirror left and right in one direction, resulting in poor angle positioning effect and affecting processing.

[0006] A positioning mechanism for mirror processing includes a worktable, a mounting plate, and a rotary positioning mechanism. The mounting plate is fixedly mounted on the top of the worktable, and the rotary positioning mechanism is mounted on the mounting plate. The rotary positioning mechanism includes a rotating ring, a slide rail, and a motor. A rotating groove is formed at the center of the mounting plate, and the rotating ring is rotatably mounted within the rotating groove. The rotating ring has four guide grooves. The slide rail is fixedly mounted at the four opposite corners of the mounting plate and extends towards the center of the mounting plate. A movable plate is slidably mounted on the slide rail. A positioning block is provided at one end of the movable plate near the center of the mounting plate. A guide post is provided at the bottom of the positioning block, and the guide post is positioned within the guide groove. The motor drives the rotating ring to rotate.

[0007] According to one embodiment of the present invention, the slide rail has grooves on both sides of its sidewalls, and the movable plate has sliders on both sides of its bottom, the sliders slidingly engaging with the grooves.

[0008] According to one embodiment of the present invention, a buffer groove is provided on the side of the positioning block near the center of the mounting plate, a buffer block is provided in the buffer groove, and a spring is provided between the buffer block and the buffer groove. One end of the spring is connected to the side wall of the buffer groove, and the other end is connected to the buffer block.

[0009] According to one embodiment of the present invention, the buffer block is provided with arc-shaped surfaces on both sides.

[0010] According to one embodiment of the present invention, the positioning block has an arc surface on the side near the center of the mounting plate.

[0011] According to one embodiment of the present invention, the motor is fixedly installed at the bottom of the workbench, and its output end extends through the rotating groove and is fixedly connected to the bottom of the rotating ring.

[0012] According to one embodiment of the present invention, the size of the rotating ring is adapted to the rotating groove.

[0013] According to one embodiment of the present invention, the guide post is adapted to the guide groove.

[0014] According to one embodiment of the present invention, the bottom of the workbench is provided with a plurality of support legs.

[0015] According to one embodiment of the present invention, the slide rail bolts are fixedly mounted on the mounting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This invention uses a starting motor to drive a rotating ring to rotate within a rotating groove. As the rotating ring rotates, the position of the guide groove changes. Since the guide post is located within the guide groove, the guide post at the bottom of the positioning block moves with the guide groove, thereby causing the positioning block and the moving plate to move closer to or further away from the center of the mounting plate on the slide rail. Through the rotation of the rotating ring, the four positioning blocks can move simultaneously towards the center or spread outwards, enabling precise control of the positions of the four positioning blocks and achieving multi-angle precise positioning of the reflector, meeting the stringent positioning accuracy requirements during reflector manufacturing.

[0018] 2. In the positioning process of this utility model, if the position of the reflector is slightly deviated, the buffer block on the side of the positioning block near the center of the mounting plate can adaptively adjust the squeezing force on the reflector under the action of the spring, so as to avoid damage to the reflector due to rigid squeezing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a positioning mechanism for mirror processing.

[0020] Figure 2 This is a schematic diagram of the installation of the slider and the moving plate.

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the rotary positioning mechanism.

[0022] The attached diagram is labeled as follows: 1. Workbench; 11. Support leg; 2. Mounting plate; 3. Rotating ring; 31. Guide groove; 4. Slide rail; 41. Slide groove; 5. Motor; 6. Moving plate; 61. Slider; 7. Positioning block; 71. Guide post; 72. Buffer groove; 73. Buffer block; 74. Spring. Detailed Implementation

[0023] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0024] like Figures 1 to 3 As shown, a positioning mechanism for mirror processing includes a worktable 1, a mounting plate 2, and a rotary positioning mechanism. The mounting plate 2 is fixedly mounted on the top of the worktable 1, and the rotary positioning mechanism is mounted on the mounting plate 2. The rotary positioning mechanism includes a rotating ring 3, a slide rail 4, and a motor 5. A rotating groove is formed at the center of the mounting plate 2, and the rotating ring 3 is rotatably mounted in the rotating groove. The rotating ring 3 has four guide grooves 31. The slide rail 4 is fixedly mounted at the four opposite corners of the mounting plate 2 and extends towards the center of the mounting plate 2. A movable plate is slidably mounted on the slide rail 4. A positioning block 7 is provided at one end of the movable plate near the center of the mounting plate 2. A guide post 71 is provided at the bottom of the positioning block 7 and is located in the guide groove 31. The motor 5 is used to drive the rotating ring 3 to rotate.

[0025] The slide rail 4 has grooves 41 on both sides of its sidewalls, and the movable plate 6 has sliders 61 on both sides of its bottom, which slide in cooperation with the grooves 41.

[0026] The grooves 41 on both sides of the slide rail 4 cooperate with the sliders 61 on both sides of the bottom of the moving plate 6. When the positioning block 7 moves on the slide rail 4 driven by the guide post 71, the sliders 61 slide within the grooves 41, providing guidance and support for the movement of the moving plate 6. This ensures the smoothness and accuracy of the movement of the moving plate 6 on the slide rail 4, preventing the moving plate 6 from shaking or shifting during movement, thereby ensuring that the positioning block 7 can accurately position the reflector.

[0027] The positioning block 7 has a buffer groove 72 on the side near the center of the mounting plate 2. A buffer block 73 is provided in the buffer groove 72. A spring 74 is provided between the buffer block 73 and the buffer groove 72. One end of the spring 74 is connected to the side wall of the buffer groove 72, and the other end is connected to the buffer block 73.

[0028] When the positioning block 7 contacts the reflector, if the reflector's position is off or its surface is uneven, the buffer block 73 will be squeezed and moved into the buffer groove 72, compressing the spring 74. The elastic force of the spring 74 will generate a counterforce on the buffer block 73, ensuring that the buffer block 73 always remains in contact with the reflector, and adjusting the squeezing force according to the actual situation of the reflector. This effectively avoids rigid squeezing of the reflector by the positioning block 7, protects the reflector's surface, prevents scratches, cracks, and other damage to the reflector during the positioning process, and improves product quality.

[0029] The buffer block 73 has arc-shaped surfaces on both sides. When the arc-shaped surfaces on both sides of the buffer block 73 come into contact with the reflector, they can better fit the edge shape of the reflector, so that the pressure is evenly distributed on the edge of the reflector and the situation of excessive local pressure is reduced.

[0030] The positioning block 7 has an arc-shaped surface on the side closest to the center of the mounting plate 2. This arc-shaped surface allows the positioning block 7 to make smoother contact with the edge of the reflector when it approaches the reflector, reducing the friction between the positioning block 7 and the reflector and preventing damage to the reflector surface due to excessive friction.

[0031] The motor 5 is fixedly mounted on the bottom of the worktable 1, and its output end passes through the rotating groove and is fixedly connected to the bottom of the rotating ring 3. When the motor 5 is started, its output shaft rotates, causing the rotating ring 3 to rotate within the rotating groove. This installation method makes the motor 5 more stable and avoids it occupying too much overhead space, resulting in a more rational layout of the entire positioning mechanism and facilitating operation and maintenance.

[0032] The dimensions of the rotating ring 3 are adapted to the rotating groove. The rotating ring 3 can rotate smoothly within the rotating groove, while the rotating groove provides positioning and support for the rotating ring 3, ensuring its stability during rotation.

[0033] The guide post 71 is adapted to the guide groove. The guide post 71 can slide flexibly within the guide groove. When the rotating ring 3 rotates, the guide post 71 can accurately follow the movement trajectory of the guide groove, thereby driving the positioning block 7 to move on the slide rail 4. This ensures the accuracy and synchronization of the movement of the positioning block 7, enabling the four positioning blocks 7 to coordinately position the reflector, thus improving the reliability and stability of the positioning.

[0034] The workbench 1 has several support legs 11 at its bottom. The slide rail 4 is bolted to the mounting plate 2.

[0035] The entire positioning mechanism uses the workbench 1 as its basic support structure. Several support legs 11 are installed at the bottom of the workbench 1 for stable placement. The mounting plate 2 is fixed to the top of the workbench 1, and the rotary positioning mechanism is mounted on the mounting plate 2. In the rotary positioning mechanism, a rotating groove is formed in the center of the mounting plate 2, and a rotating ring 3 rotates within this groove. A motor 5 is fixed to the bottom of the workbench 1, and its output end passes through the rotating groove and is fixedly connected to the bottom of the rotating ring 3, providing power for the rotation of the rotating ring 3. Four guide grooves 31 are formed on the rotating ring 3, and slide rails 4 are fixed at the four opposite corners of the mounting plate 2, extending towards the center of the mounting plate 2. A movable plate 6 on the slide rail 4 slides along the slide rail 4 via sliders 61 on both sides of its bottom, which engage with the grooves 41 on the side walls of the slide rail 4. A positioning block 7 is provided at the end of the movable plate 6 closest to the center of the mounting plate 2, and the guide post 71 at the bottom of the positioning block 7 engages with the guide groove 31 on the rotating ring 3.

[0036] The working principle of this invention is as follows: When positioning the reflector is required, motor 5 is started, and motor 5 drives the rotating ring 3 to rotate within the rotating groove. As the rotating ring 3 rotates, the position of the guide groove 31 changes. Since the guide post 71 is set within the guide groove 31, the guide post 71 at the bottom of the positioning block 7 moves with the movement of the guide groove 31, thereby driving the positioning block 7 and the moving plate 6 to move closer to or further away from the center of the mounting plate 2 on the slide rail 4. Through the rotation of the rotating ring 3, the four positioning blocks 7 can move simultaneously towards the center or spread outwards. When the reflector is placed at the center of the mounting plate 2, the four positioning blocks 7 gradually approach and contact the edge of the reflector, positioning the reflector. During the positioning process, if the position of the reflector is slightly deviated, the buffer block 73 on the side of the positioning block 7 closest to the center of the mounting plate 2, under the action of the spring 74, can adaptively adjust the squeezing force on the reflector, avoiding damage to the reflector due to rigid squeezing.

[0037] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A positioning mechanism for mirror processing, comprising a worktable (1), a mounting plate (2) and a rotary positioning mechanism, wherein the mounting plate (2) is fixedly disposed on the top of the worktable (1) and the rotary positioning mechanism is disposed on the mounting plate (2); Its features are, The rotating positioning mechanism includes a rotating ring (3), a slide rail (4), and a motor (5). A rotating groove is provided in the center of the mounting plate (2). The rotating ring (3) is rotatably disposed in the rotating groove. There are four guide grooves (31) on the rotating ring (3). The slide rail (4) is fixedly disposed at the four opposite corners of the mounting plate (2) and extends toward the center of the mounting plate (2). A moving plate (6) is slidably disposed on the slide rail (4). A positioning block (7) is provided at one end of the moving plate (6) near the center of the mounting plate (2). A guide post (71) is provided at the bottom of the positioning block (7). The guide post (71) is disposed in the guide groove (31). The motor (5) is used to drive the rotating ring (3) to rotate.

2. The positioning mechanism for mirror processing as described in claim 1, characterized in that, The slide rail (4) has grooves (41) on both sides of its sidewalls, and the movable plate (6) has sliders (61) on both sides of its bottom, and the sliders (61) slide in cooperation with the grooves (41).

3. The positioning mechanism for mirror processing as described in claim 1, characterized in that, The positioning block (7) has a buffer groove (72) on one side near the center of the mounting plate (2). A buffer block (73) is provided in the buffer groove (72). A spring (74) is provided between the buffer block (73) and the buffer groove (72). One end of the spring (74) is connected to the side wall of the buffer groove (72), and the other end is connected to the buffer block (73).

4. The positioning mechanism for mirror processing as described in claim 3, characterized in that, The buffer block (73) has arc-shaped surfaces on both sides.

5. The positioning mechanism for mirror processing as described in claim 1, characterized in that, The positioning block (7) has an arc surface on the side near the center of the mounting plate (2).

6. The positioning mechanism for mirror processing as described in claim 1, characterized in that, The motor (5) is fixedly installed at the bottom of the workbench (1), and its output end passes through the rotating groove and is fixedly connected to the bottom of the rotating ring (3).

7. The positioning mechanism for mirror processing as described in claim 1, characterized in that, The size of the rotating ring (3) is adapted to the rotating groove.

8. A positioning mechanism for mirror processing as described in claim 3, characterized in that, The guide post (71) is adapted to the guide groove.

9. A positioning mechanism for mirror processing as described in claim 1, characterized in that, The bottom of the workbench (1) is provided with several support legs (11).

10. A positioning mechanism for mirror processing as described in claim 1, characterized in that, The slide rail (4) is bolted and fixed on the mounting plate (2).

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