High-precision polishing equipment for optical element

Abstract

The utility model discloses high-precision polishing equipment for an optical element. The high-precision polishing equipment comprises a base, an electric rotating disc, a plurality of clamps and a lifting polishing assembly. A bracket and a control element are mounted on the base; the electric turntable is rotationally connected to the base, and a plurality of electric push rods are mounted on the top surface of the electric turntable at equal intervals in the circumferential direction; the clamp comprises a fixed clamp and a movable clamp which are oppositely arranged; the multiple fixing clamps are installed on the top face of the electric rotating disc in the circumferential direction at equal intervals. The movable clamp is installed at the telescopic end of the electric push rod and slidably connected to the top face of the electric rotating disc. The lifting polishing assembly is installed on the support. According to the optical element polishing device, optical elements of different sizes can be automatically clamped and fixed, the situation that the optical elements are damaged due to the fact that clamping force is too large is avoided, meanwhile, the optical elements clamped and fixed to the electric rotating disc can be sequentially polished, and the polishing efficiency and the polishing effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing equipment, in particular to a high-precision polishing equipment for optical elements. Background Technique

[0002] In the optical element manufacturing industry, the polishing process is a key step to ensure the optical performance of the elements. In order to polish the optical elements, it is usually necessary to use a clamping device to fix the elements on the polishing equipment and adjust the relative position between the polishing head and the elements to achieve the polishing operation.

[0003] However, the existing optical element polishing equipment usually uses fixed fixtures or simple mechanical fixtures to fix the optical elements. The designs of these fixtures often lack flexibility and cannot adapt to optical elements of different sizes, resulting in the need to frequently replace the fixtures when processing elements of different sizes, greatly reducing the working efficiency. At the same time, the magnitude of the clamping force is also a problem that is difficult to control. Excessive clamping force is likely to damage the optical elements, while too small clamping force may cause the elements to loosen or move during the polishing process, affecting the polishing quality. Secondly, the existing equipment usually can only polish a single optical element. When multiple elements need to be polished, it is necessary to replace the elements one by one and adjust the position of the polishing head, which not only increases the operation difficulty and labor intensity, but also reduces the polishing efficiency.

[0004] Therefore, a high-precision polishing equipment for optical elements is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision polishing equipment for optical elements, aiming to solve or improve at least one of the above technical problems.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a high-precision polishing equipment for optical elements, including:

[0007] A base, on which a bracket and a control element are installed;

[0008] An electric turntable, which is rotatably connected to the base, and a plurality of electric push rods are circumferentially and equidistantly installed on the top surface of the electric turntable;

[0009] A plurality of fixtures, each fixture includes a fixed fixture and a movable fixture arranged oppositely; a plurality of the fixed fixtures are circumferentially and equidistantly installed on the top surface of the electric turntable; the movable fixture is installed at the telescopic end of the electric push rod, and the movable fixture is slidably connected to the top surface of the electric turntable;

[0010] A lifting and polishing assembly, which is installed on the bracket; the working end of the lifting and polishing assembly faces between the fixed fixture and the movable fixture of one of the fixtures;

[0011] Wherein, a pressure sensor is installed on the end face of the movable fixture close to the fixed fixture, and the pressure sensor, the electric push rod, the electric turntable and the lifting and polishing assembly are all electrically connected to the control element.

[0012] According to a high-precision polishing device for optical elements provided by the present invention, the electric turntable includes:

[0013] A driving member, which is installed on the base;

[0014] A turntable body, which is rotatably connected to the top surface of the base;

[0015] Wherein, the driving member is used to drive the turntable body to rotate, and the driving member is electrically connected to the control element; a plurality of the electric push rods and a plurality of the fixed fixtures are circumferentially and equidistantly installed on the top surface of the turntable body, and the movable fixture is slidably connected to the top surface of the turntable body.

[0016] According to a high-precision polishing device for optical elements provided by the present invention, the driving member includes a stepping motor installed on the base, and the stepping motor is electrically connected to the control element; a driving gear is installed on the output shaft of the stepping motor, and a toothed ring is fixedly connected to the outer side wall of the turntable body, and the driving gear meshes with the toothed ring for transmission.

[0017] According to a high-precision polishing device for optical elements provided by the present invention, the lifting and polishing assembly includes:

[0018] A cylinder, the cylinder body end of which is installed on the bracket, and the piston end of the cylinder is installed with a bearing plate;

[0019] A driving motor, which is installed on the bearing plate;

[0020] A polishing head, which is detachably connected to the output shaft of the driving motor;

[0021] Wherein, the driving motor and the cylinder are both electrically connected to the control element, and the polishing head faces between the fixed fixture and the movable fixture of one of the fixtures.

[0022] According to a high-precision polishing device for optical elements provided by the present invention, a first arc-shaped groove is formed on the end face of the fixed fixture close to the movable fixture, and a first flexible gasket is installed in the first arc-shaped groove.

[0023] According to a high-precision polishing device for optical elements provided by the present utility model, a second arc-shaped groove is formed on the end face of the movable fixture close to the fixed fixture, a second flexible gasket is installed in the second arc-shaped groove, and the pressure sensor is installed in the second flexible gasket.

[0024] According to a high-precision polishing device for optical elements provided by the present utility model, the bracket is an L-shaped bracket.

[0025] According to a high-precision polishing device for optical elements provided by the present utility model, legs are installed at the four corners of the bottom of the base, and anti-slip gaskets are installed at the bottoms of the legs.

[0026] The present utility model discloses the following technical effects:

[0027] The pressure sensor installed on the movable fixture of the present utility model, when in use, drives the movable fixture to slide along the top surface of the electric turntable through the electric push rod, thereby adjusting the distance between the fixed fixture and the movable fixture, facilitating the adaptation to optical elements of different sizes. The pressure sensor can real-time monitor the change of the clamping pressure on the optical element and feed the data back to the control element. The control element adjusts the telescopic length of the electric push rod in real time according to the feedback data, realizing the automatic clamping and fixing operation of optical elements of different sizes, and at the same time avoiding damage to the optical element caused by excessive clamping force, thereby improving the working efficiency and polishing effect of subsequent polishing;

[0028] The present utility model drives the circumferential rotation of the electric turntable through the control element, which can quickly adjust the relative position between the fixture and the polishing head, and thus can realize the polishing treatment of several optical elements clamped and fixed on the electric turntable in sequence, without frequently replacing the fixture and adjusting the position of the polishing head, greatly improving the polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0030] Figure 1 is the structural schematic diagram of the present utility model;

[0031] Figure 2 is Figure 1 the partial enlarged view of A in;

[0032] Figure 3 is the installation schematic diagram of several fixtures and the electric turntable in the present utility model;

[0033] Figure 4 For Figure 3 Partial enlarged view of B in

[0034] Among them, 1, base; 2, bracket; 3, control element; 4, electric push rod; 5, fixed fixture; 6, movable fixture; 7, turntable body; 8, stepping motor; 9, driving gear; 10, gear ring; 11, cylinder; 12, bearing plate; 13, driving motor; 14, polishing head; 15, first arc-shaped groove; 16, first flexible gasket; 17, second arc-shaped groove; 18, second flexible gasket; 19, pressure sensor; 20, leg; 21, anti-slip gasket. Specific implementation mode

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0037] Referring to Figures 1 - 4 , the present invention provides a high-precision polishing device for optical elements, including:

[0038] Base 1, on which a bracket 2 and a control element 3 are installed;

[0039] Electric turntable, which is rotatably connected to the base 1, and a plurality of electric push rods 4 are installed equidistantly in the circumferential direction on the top surface of the electric turntable;

[0040] A plurality of fixtures, the fixtures include a fixed fixture 5 and a movable fixture 6 arranged oppositely; a plurality of fixed fixtures 5 are installed equidistantly in the circumferential direction on the top surface of the electric turntable; the movable fixture 6 is installed at the telescopic end of the electric push rod 4, and the movable fixture 6 is slidably connected to the top surface of the electric turntable;

[0041] Lifting and polishing assembly, which is installed on the bracket 2; the working end of the lifting and polishing assembly faces between the fixed fixture 5 and the movable fixture 6 of one of the fixtures;

[0042] Among them, a pressure sensor 19 is installed on the end surface of the movable fixture 6 close to the fixed fixture 5, and the pressure sensor 19, the electric push rod 4, the electric turntable and the lifting and polishing assembly are all electrically connected to the control element 3;

[0043] The control element 3 can be set according to the specific usage environment. For example, it can be a single-chip microcomputer or use methods such as PLC, ARM (Advanced RISC Machine), FPGA (Field-Programmable Gate Array), etc. No specific limitation is made in this embodiment;

[0044] With such a setting, the pressure sensor 19 installed on the movable fixture 6 of the present utility model drives the movable fixture 6 to slide along the top surface of the electric turntable during use through the electric push rod 4, thereby adjusting the distance between the fixed fixture 5 and the movable fixture 6 to facilitate adapting to optical elements of different sizes. The pressure sensor 19 can monitor the change in the clamping pressure on the optical element in real time and feed the data back to the control element 3. The control element 3 adjusts the telescopic length of the electric push rod 4 in real time according to the feedback data, realizing the automatic clamping and fixing operation of optical elements of different sizes, and at the same time avoiding damage to the optical element caused by excessive clamping force, thereby improving the work efficiency and polishing effect of subsequent polishing;

[0045] The present utility model can drive the circumferential rotation of the electric turntable through the control element 3, quickly adjust the relative position between the fixture and the polishing head 14 of the lifting and polishing assembly, and thus can realize the polishing process of several optical elements clamped and fixed on the electric turntable in sequence, without frequently replacing the fixture and adjusting the position of the polishing head 14, greatly improving the polishing efficiency.

[0046] For a further optimized solution, the electric turntable includes:

[0047] A driving member, which is installed on the base 1;

[0048] A turntable body 7, which is rotatably connected to the top surface of the base 1;

[0049] Among them, the driving member is used to drive the turntable body 7 to rotate, and the driving member is electrically connected to the control element 3; a plurality of electric push rods 4 and a plurality of fixed fixtures 5 are all circumferentially and equally spaced on the top surface of the turntable body 7, and the movable fixture 6 is slidably connected to the top surface of the turntable body 7.

[0050] For a further optimized solution, the driving member includes a stepping motor 8 installed on the base 1, and the stepping motor 8 is electrically connected to the control element 3; a driving gear 9 is installed on the output shaft of the stepping motor 8, and a toothed ring 10 is fixedly connected to the outer side wall of the turntable body 7, and the driving gear 9 meshes with the toothed ring 10 for transmission;

[0051] When the control element 3 sends an instruction to the stepper motor 8, the stepper motor 8 rotates according to the preset number of steps and speed. Its output shaft drives the driving gear 9 to rotate, and then drives the turntable body 7 to rotate circumferentially through the gear ring 10. A plurality of electric push rods 4 and fixed jigs 5 are installed at equal intervals in the circumferential direction on the top surface of the turntable body 7. Therefore, when the turntable body 7 rotates, it can drive the electric push rods 4, fixed jigs 5 and the optical elements clamped in the jigs to rotate synchronously. Since the rotation control of the electric turntable is realized by the transmission mode of the stepper motor 8 and the driving gear 9, the accuracy and stability of the rotation can be ensured.

[0052] For a further optimized solution, the lifting and polishing assembly includes:

[0053] A cylinder 11, the cylinder body end of the cylinder 11 is installed on the bracket 2, and the piston end of the cylinder 11 is installed with a bearing plate 12;

[0054] A driving motor 13, the driving motor 13 is installed on the bearing plate 12;

[0055] A polishing head 14, the polishing head 14 is detachably connected to the output shaft of the driving motor 13;

[0056] Wherein, both the driving motor 13 and the cylinder 11 are electrically connected to the control element 3, and the polishing head 14 faces between the fixed jig 5 and the movable jig 6 of one of the jigs;

[0057] When it is necessary to polish the optical element, the control element 3 sends an instruction to the cylinder 11, and the piston end of the cylinder 11 extends, driving the bearing plate 12, the driving motor 13 and the polishing head 14 to descend until the polishing head 14 contacts the surface of the optical element. Then, the control element 3 sends an instruction to the driving motor 13, and the driving motor 13 drives the polishing head 14 to rotate to polish the optical element. After the polishing is completed, the piston end of the cylinder 11 retracts, driving the polishing assembly to rise and leave the surface of the optical element.

[0058] For a further optimized solution, a first arc-shaped groove 15 is formed on the end surface of the fixed jig 5 close to the movable jig 6, and a first flexible gasket 16 is installed in the first arc-shaped groove 15.

[0059] For a further optimized solution, a second arc-shaped groove 17 is formed on the end surface of the movable jig 6 close to the fixed jig 5, a second flexible gasket 18 is installed in the second arc-shaped groove 17, and a pressure sensor 19 is installed in the second flexible gasket 18;

[0060] The first flexible gasket 16 and the second arc-shaped groove 17 are used to provide a buffering effect when clamping the optical element, preventing damage to the element caused by excessive clamping force; when the movable fixture 6 and the fixed fixture 5 clamp the optical element, the pressure sensor 19 will monitor the change of the clamping force in real time and feed the data back to the control element 3, and the control element 3 will adjust the telescopic length of the electric push rod 4 in real time according to the feedback data to ensure an appropriate clamping force.

[0061] In a further optimized solution, the bracket 2 is an L-shaped bracket.

[0062] In a further optimized solution, legs 20 are installed at the four corners of the bottom of the base 1, and anti-slip pads 21 are installed at the bottoms of the legs 20 to improve the placement stability.

[0063] In a further optimized solution, a displacement sensor is installed on the bracket 2. The displacement sensor is electrically connected to the control element 3, and the detection end of the displacement sensor faces the top surface of the turntable body 7;

[0064] The displacement sensor feeds the distance data monitored in real time back to the control element 3. The control element 3 calculates the lifting movement amount that the polishing head 14 should perform through an algorithm based on these data and in combination with preset polishing process parameters (such as polishing time, polishing speed, polishing depth, etc.), and then can adapt to optical elements of different sizes; after polishing is completed, the electric turntable continues to rotate to the polishing position of the next optical element, and the displacement sensor starts to work again to perform a new round of distance monitoring and feedback. At the same time, the lifting and polishing assembly also adjusts the corresponding lifting movement according to the new distance data to prepare for polishing the next optical element;

[0065] Through the real-time monitoring and feedback of the displacement sensor, the control element 3 can more accurately control the lifting movement of the polishing head 14 to ensure an appropriate distance between the polishing head 14 and the surface of the optical element, which not only improves the polishing accuracy and quality, but also avoids problems such as poor polishing effect or damage to the optical element caused by improper distance. At the same time, since there is no need to frequently replace the fixture and adjust the position of the polishing head 14, the polishing efficiency is greatly improved.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0067] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A high-precision polishing device for optical components, characterized in that: include: A base (1), wherein a bracket (2) and a control element (3) are mounted on the base (1); An electric turntable, the electric turntable being rotatably connected to the base (1), and a plurality of electric push rods (4) being circumferentially mounted at equal intervals on the top surface of the electric turntable; A plurality of clamps, the clamps comprising a fixed clamp (5) and a movable clamp (6) arranged opposite to each other; the plurality of fixed clamps (5) are mounted on the top surface of the electric turntable at equal intervals in the circumferential direction; the movable clamp (6) is mounted on the telescopic end of the electric push rod (4), and the movable clamp (6) is slidably connected to the top surface of the electric turntable; A lifting and polishing assembly, wherein the lifting and polishing assembly is mounted on the bracket (2); a working end of the lifting and polishing assembly faces between a fixed fixture (5) and a movable fixture (6) of one of the fixtures; Wherein, a pressure sensor (19) is installed on the end surface of the movable clamp (6) close to the fixed clamp (5), and the pressure sensor (19), the electric push rod (4), the electric turntable and the lifting and polishing assembly are all electrically connected to the control element (3).

2. The high-precision polishing device for optical elements according to claim 1, characterized in that: The electric turntable comprises: A driving member, the driving member being mounted on the base (1); A turntable body (7), the turntable body (7) being rotatably connected to the top surface of the base (1); Wherein, the driving member is used to drive the turntable body (7) to rotate, and the driving member is electrically connected to the control element (3); a plurality of the electric push rods (4) and a plurality of the fixed clamps (5) are installed on the top surface of the turntable body (7) at equal circumferential intervals, and the movable clamp (6) is slidably connected to the top surface of the turntable body (7).

3. The high-precision polishing device for optical elements according to claim 2, characterized in that: The driving member comprises a stepper motor (8) mounted on the base (1), the stepper motor (8) being electrically connected to the control element (3); a driving gear (9) is mounted on the output shaft of the stepper motor (8), a gear ring (10) is fixedly connected to the outer wall of the turntable body (7), and the driving gear (9) is meshed with the gear ring (10) for transmission.

4. The high-precision polishing device for optical elements according to claim 1, characterized in that: The lifting and polishing assembly comprises: A cylinder (11), wherein the cylinder body end of the cylinder (11) is mounted on the bracket (2), and the piston end of the cylinder (11) is mounted with a bearing plate (12); A driving motor (13), wherein the driving motor (13) is mounted on the carrying plate (12); A polishing head (14), wherein the polishing head (14) is detachably connected to the output shaft of the driving motor (13); The driving motor (13) and the cylinder (11) are both electrically connected to the control element (3), and the polishing head (14) faces between the fixed fixture (5) and the movable fixture (6) of one of the fixtures.

5. The high-precision polishing device for optical elements according to claim 1, characterized in that: A first arc-shaped groove (15) is provided on the end surface of the fixed clamp (5) close to the movable clamp (6), and a first flexible gasket (16) is installed in the first arc-shaped groove (15).

6. The high-precision polishing device for optical elements according to claim 1, characterized in that: A second arc-shaped groove (17) is provided on the end surface of the movable clamp (6) close to the fixed clamp (5), a second flexible gasket (18) is installed in the second arc-shaped groove (17), and the pressure sensor (19) is installed in the second flexible gasket (18).

7. The high-precision polishing device for optical elements according to claim 1, characterized in that: The bracket (2) is an L-shaped bracket.

8. The high-precision polishing device for optical elements according to claim 1, characterized in that: Support legs (20) are installed at the four corners of the bottom of the base (1), and anti-slip pads (21) are installed at the bottom of the support legs (20).

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