Positioning machine table for optical lens processing

Abstract

The utility model discloses a positioning machine platform for optical lens processing, including support platform and positioning clamping mechanism, positioning clamping mechanism: it includes sliding slot, sliding block, support, clamping piece, rotating column, support plate, arc slot and plunger, the upper end of support platform is provided with the sliding slot of uniform distribution, the inside of sliding slot is slidably connected with sliding block respectively, the upper end of sliding block is equipped with support, and the upper side of opposite end of support is equipped with clamping piece respectively, and rotating column is rotatably connected between the upper and lower inner wall of support platform, and the upper side of rotating column outer surface is fixedly connected with support plate, and the upper end of support plate is provided with the arc slot of uniform distribution, and the lower end of sliding block is fixedly connected with plunger respectively, and the inner wall of arc slot of vertical adjacent is slidably connected with the outer surface of plunger respectively, and this positioning machine platform for optical lens processing, when processing optical lens, through the mode of mechanical clamping, prevents workpiece displacement, avoids causing lens blank to be scrapped.

Description

Technical Field

[0001] This utility model relates to the field of optical lens processing technology, specifically to a positioning machine for optical lens processing. Background Technology

[0002] An optical lens, often simply called a lens, is a precision optical component composed of multiple optical lenses of different shapes and materials. Its core function is to collect light from the subject and precisely focus it onto the image sensor. The working principle of a lens is mainly based on the refraction of light. Light is emitted from the subject and passes through the lens at the front. As the light passes through a series of lenses with different curvatures and materials, it undergoes multiple refractions. These lenses are carefully designed and combined for two purposes: to converge the scattered light to a point and to eliminate image blurring, color fringing, or distortion caused by the wave characteristics of light. The corrected and converged light finally forms a clear, inverted real image on the focal plane. It is a high-precision tooling device used in the manufacturing process of optical lenses to precisely fix, support, and position optical elements. The existing patent announcement number CN220197484U2 discloses a positioning machine for optical lens processing, comprising a positioning machine, a positioning frame mounted on the side edge of the positioning machine, and a clamping component disposed on the positioning frame; a support platform is disposed on the positioning machine, and a bearing fixture is mounted on the support platform, with the clamping component disposed on the side edge of the bearing surface of the bearing fixture; a rotating seat is disposed on the support platform, the bearing fixture is mounted on the rotating seat, and an adsorption component is disposed at the center line position of the support platform, with the bearing fixture mounted on the adsorption end of the adsorption component. This application can effectively reduce the shaking error during the orientation adjustment of the bearing fixture and improve the accuracy of lens blank processing; Existing positioning machines for optical lens processing have the following problems: When processing optical lenses, positioning is achieved through adsorption. However, fluctuations in the air source pressure or air leakage at the adsorption surface can lead to insufficient adsorption force, which can easily cause workpiece displacement and scrap the lens blank. To address this, we propose a positioning machine for optical lens processing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a positioning machine for optical lens processing. When processing optical lenses, the machine prevents workpiece displacement by mechanical clamping, thus avoiding the scrapping of lens blanks and effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a positioning machine for optical lens processing, comprising a support platform and a positioning clamping mechanism; Positioning and clamping mechanism: It includes sliding grooves, sliding blocks, brackets, clamping plates, rotating columns, support plates, arc-shaped grooves, and shifting columns. The upper end of the support platform is provided with evenly distributed sliding grooves. Sliding blocks are slidably connected inside the sliding grooves. A bracket is provided at the upper end of the sliding block. Clamping plates are provided on the upper side of the opposite end of the bracket. The rotating column is rotatably connected between the upper and lower inner walls of the support platform. A support plate is fixedly connected to the upper side of the outer surface of the rotating column. An evenly distributed arc-shaped groove is provided at the upper end of the support plate. Shifting columns are fixedly connected to the lower ends of the sliding blocks. The outer surface of the shifting columns is slidably connected to the inner wall of the vertically adjacent arc-shaped grooves. During the processing of optical lenses, mechanical clamping is used to prevent workpiece displacement and avoid scrapping of the lens blank.

[0005] Furthermore, a microcontroller is installed on the outside of the support platform. The input terminal of the microcontroller is electrically connected to an external power source to provide electrical connections for various electrical appliances.

[0006] Furthermore, the positioning and clamping mechanism also includes a drive assembly, which includes a protective cover, a worm gear, and a worm. The protective cover is disposed on the bottom wall of the support platform, the worm gear is fixedly sleeved on the middle of the outer surface of the rotating column, and the worm is rotatably connected between the front and rear inner walls of the protective cover. The worm gear and the worm are meshed together to provide a transmission connection.

[0007] Furthermore, the drive assembly also includes an angle sensor, which is disposed at the front end of the protective cover. The middle part of the counting shaft of the angle sensor is fixedly connected to the front end of the worm gear. The angle sensor is bidirectionally electrically connected to the microcontroller to provide angle monitoring.

[0008] Furthermore, the drive assembly also includes a motor, which is located at the rear end of the protective cover. The front end of the motor's output shaft is fixedly connected to the rear end of the worm gear, and the input end of the motor is electrically connected to the output end of the microcontroller to provide rotation drive.

[0009] Furthermore, a placement platform is provided in the middle of the upper part of the support platform to provide support.

[0010] Furthermore, the lower end of the support platform is provided with a mounting plate for easy installation.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This positioning machine for optical lens processing has the following advantages: Driven by a motor, a worm gear and a meshing worm wheel cause a rotating column to rotate, which in turn drives a support plate to rotate. An arc-shaped groove slides in conjunction with a pusher post, pulling a sliding block to move centripetally within the groove. The sliding block, via a bracket, drives the clamping plates to move synchronously. Multiple sets of clamping plates move together towards the center of the placement stage, achieving clamping and positioning of the lens. During optical lens processing, this mechanical clamping prevents workpiece displacement and avoids scrapping the lens blank. Attached Figure Description Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the support platform of this utility model.

[0012] In the diagram: 1 Support platform, 2 Positioning and clamping mechanism, 21 Sliding groove, 22 Sliding block, 23 Bracket, 24 Clamping piece, 25 Rotating column, 26 Support plate, 27 Arc groove, 28 Pulley, 29 Drive assembly, 291 Protective cover, 292 Worm gear, 293 Worm, 294 Angle sensor, 295 Motor, 3 Placement platform, 4 Mounting plate, 5 Microcontroller. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3 This embodiment provides a technical solution: a positioning machine for optical lens processing, including a support platform 1 and a positioning clamping mechanism 2. The upper middle part of the support platform 1 is provided with a placement platform 3, and the lower end of the support platform 1 is provided with a mounting plate 4. When processing optical lenses, the support platform 1 is installed in a designated position by the mounting plate 4, and the optical lens to be processed is placed on the upper end of the placement platform 3. A microcontroller 9 is installed on the outside of the support platform 1. The input terminal of the microcontroller 9 is electrically connected to an external power supply to ensure the electrical connection of each electrical appliance. Positioning and clamping mechanism 2: It includes a sliding groove 21, a sliding block 22, a bracket 23, a clamping piece 24, a rotating column 25, a support plate 26, an arc-shaped groove 27, and a lever 28. The upper end of the support platform 1 is provided with evenly distributed sliding grooves 21. Sliding blocks 22 are slidably connected inside the sliding grooves 21. A bracket 23 is provided at the upper end of each sliding block 22. Clamping pieces 24 are provided on the upper sides of opposite ends of the bracket 23. The rotating column 25 is rotatably connected between the upper and lower inner walls of the support platform 1. A support plate 26 is fixedly connected to the upper side of the outer surface of the rotating column 25. The upper end of the support plate 26 is provided with evenly distributed arc-shaped grooves 27. 7. The lower end of the sliding block 22 is fixedly connected to the push post 28. The outer surface of the push post 28 is slidably connected to the inner wall of the vertically adjacent arc groove 27. The rotating column 25 drives the support plate 26 to rotate. The arc groove 27 is slidably engaged with the push post 28 at the lower end of the sliding block 22. The rotating arc groove 27 generates a radial pulling force on the sliding block 22 through the push post 28. Under the action of the pulling force, the sliding block 22 moves centripetally along the sliding groove 21 at the upper end of the support platform 1. The bracket 23 at the upper end of the sliding block 22 drives the clamping piece 24 to move synchronously. Multiple sets of clamping pieces 24 move closer to the center of the placement platform 3 to achieve clamping and positioning of the lens. The positioning and clamping mechanism 2 also includes a drive assembly 29, which includes a protective cover 291, a worm gear 292, and a worm 293. The protective cover 291 is disposed on the bottom wall of the support platform 1. The worm gear 292 is fixedly sleeved on the middle of the outer surface of the rotating column 25. The worm 293 is rotatably connected between the front and rear inner walls of the protective cover 291. The protective cover 291 protects the worm gear 292 and the worm 293 to prevent dust from adhering and affecting the transmission effect. The worm gear 292 and the worm 293 are meshed and connected. The drive assembly 29 also includes a motor 295, which is disposed at the rear end of the protective cover 291. The front end of the output shaft of the motor 295 is fixedly connected to the rear end of the worm 293. The input end of the motor 295 is electrically connected to the output end of the microcontroller 9. Then, by controlling the microcontroller 9, the motor 295 operates. The output shaft of the motor 295 drives the worm 293 to rotate. The worm 293 drives the rotating column 25 to rotate through the meshing worm gear 292. The drive assembly 29 also includes an angle sensor 294, which is located at the front end of the protective cover 291. The middle of the counting shaft of the angle sensor 294 is fixedly connected to the front end of the worm 293. The angle sensor 294 is bidirectionally electrically connected to the microcontroller 9. The angle sensor 294 will detect the worm 293 in real time and transmit the detection signal to the microcontroller 9. The microcontroller 9 integrates the information. For example, one rotation of the worm 293 will drive the worm wheel 292 to rotate one-third of a circle. (The worm 293 and the worm wheel 292 have the same module, the same pressure angle, and the same helix angle (or lead angle) and the same direction of rotation. At the same time, the lead of the worm 293 is three times the number of teeth of the worm wheel 292.) The worm gear 292 will drive the support plate 26 to rotate one-third of its circumference via the rotating column 25. The rotation of the support plate 26 will pull the lever 28 to move a fixed value Ecm via the arc groove 27, which will in turn drive the clamping piece 24 to move Ecm. The edge of the sliding groove 21 is provided with a scale line. The vertical surface of the opposite end of the clamping piece 24 will be aligned with the initial position of the scale line (that is, initially, the inner surface of the clamping piece 24 is facing the zero point of the scale line). Assuming the radius of the optical lens to be processed is A, the distance between the initial position of the scale line and the center point of the support table 1 is B (a fixed value), and the distance that the clamping piece 24 needs to move is C, C=BA, then the sliding block 22 needs to move C. When the radius is cm, the worm gear 293 needs to rotate F times, where F = C / E. Therefore, when it is necessary to clamp an optical lens to be processed with a radius of A, the sliding block 22 can be calculated to move a distance of C, where C = BA. So, the number of rotations required for the worm gear 293 is input into the microcontroller 9 in advance, where F = C / E. After the angle sensor 294 detects the number of rotations and submits it to the microcontroller 9, the microcontroller 9 can integrate and calculate that when the number of rotations satisfies F = C / E, the rotation of the worm gear 293 is stopped, and the optical lens to be processed with a radius of A can be stably clamped.

[0015] The working principle of the positioning machine for optical lens processing provided by this utility model is as follows: When processing optical lenses, the support platform 1 is installed in a designated position by the mounting plate 4, and the optical lens to be processed is placed on the upper end of the placement platform 3. Next, the microcontroller 9 will control the motor 295 to operate. The output shaft of the motor 295 will drive the worm 293 to rotate, and the worm 293 will drive the rotating column 25 to rotate through the meshing worm wheel 292. The rotating column 25 drives the support plate 26 to rotate. The arc groove 27 slides and engages with the push post 28 at the lower end of the sliding block 22. The rotating arc groove 27 generates a radial pulling force on the sliding block 22 through the push post 28. Under the action of the pulling force, the sliding block 22 moves centripetally along the sliding groove 21 at the upper end of the support platform 1. The bracket 23 at the upper end of the sliding block 22 drives the clamping piece 24 to move synchronously. Multiple sets of clamping pieces 24 move closer to the center of the placement platform 3 together to achieve clamping and positioning of the lens.

[0016] It is worth noting that the angle sensor 294 and motor 295 disclosed in the above embodiments can be selected from WDD35D4 and YJ61. The microcontroller 9 controls the operation of the angle sensor 294 and motor 295 using methods commonly used in the prior art.

[0017] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A positioning machine for optical lens processing, characterized in that: It includes a support platform (1) and a positioning and clamping mechanism (2); Positioning and clamping mechanism (2): It includes a sliding groove (21), a sliding block (22), a bracket (23), a clamping piece (24), a rotating column (25), a support plate (26), an arc groove (27), and a lever (28). The upper end of the support platform (1) is provided with a uniformly distributed sliding groove (21). The sliding block (22) is slidably connected inside the sliding groove (21). The upper end of the sliding block (22) is provided with a bracket (23). The upper side of the opposite end of the bracket (23) is provided with a clamping piece (24). The rotating column (25) is rotatably connected between the upper and lower inner walls of the support platform (1). The upper side of the outer surface of the rotating column (25) is fixedly connected with a support plate (26). The upper end of the support plate (26) is provided with a uniformly distributed arc groove (27). The lower end of the sliding block (22) is fixedly connected with a lever (28). The outer surface of the lever (28) is slidably connected to the inner wall of the vertically adjacent arc groove (27).

2. The positioning machine for optical lens processing according to claim 1, characterized in that: The support platform (1) is equipped with a microcontroller (9) on its exterior, and the input terminal of the microcontroller (9) is electrically connected to an external power source.

3. The positioning machine for optical lens processing according to claim 2, characterized in that: The positioning and clamping mechanism (2) further includes a drive assembly (29), which includes a protective cover (291), a worm gear (292), and a worm (293). The protective cover (291) is disposed on the bottom wall of the support platform (1), the worm gear (292) is fixedly sleeved on the middle of the outer surface of the rotating column (25), and the worm (293) is rotatably connected between the front and rear inner walls of the protective cover (291). The worm gear (292) and the worm (293) are meshed together.

4. The positioning machine for optical lens processing according to claim 3, characterized in that: The drive assembly (29) also includes an angle sensor (294), which is located at the front end of the protective cover (291). The middle part of the counting shaft of the angle sensor (294) is fixedly connected to the front end of the worm (293), and the angle sensor (294) is bidirectionally electrically connected to the microcontroller (9).

5. A positioning machine for optical lens processing according to claim 4, characterized in that: The drive assembly (29) also includes a motor (295), which is located at the rear end of the protective cover (291). The front end of the output shaft of the motor (295) is fixedly connected to the rear end of the worm (293), and the input end of the motor (295) is electrically connected to the output end of the microcontroller (9).

6. The positioning machine for optical lens processing according to claim 1, characterized in that: The support platform (1) has a placement platform (3) at the middle of its upper end.

7. A positioning machine for optical lens processing according to claim 1, characterized in that: The lower end of the support platform (1) is provided with an installation plate (4).

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