Clamp for optical lens machining
By designing a fixture including a base, a moving seat, a thimble, a positioning tube and a cylinder, the center positioning and automatic shrinking of the optical lens is achieved by using the positioning pin and spring mechanism, the positioning inaccurate positioning and automatic contraction in optical lens processing in the prior art is solved. The cumbersome problems improve processing quality and convenience.
Patent Information
- Application Number
- CN202421088229.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-20
AI Technical Summary
During the processing of optical lenses, it is difficult for existing fixtures to accurately locate the optical lenses center, resulting in poor processing quality and the positioning ring is prone to leaking during edge grinding, which is cumbersome to use.
A clamp including a base, a moving seat, a thimble, a positioning tube, a lever and a cylinder is designed. The center positioning and automatic contraction of the optical lens is achieved through the positioning pin and spring mechanism to ensure stable processing of the edge of the optical lens.
It achieves good fixing effect and convenience of use of optical lenses, ensures precise processing of the edges of optical lenses, and simplifies the installation and edge grinding process.
Smart Images
Figure CN222269895U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical lens processing, in particular to a clamp for optical lens processing. Background Art
[0002] With the improvement of science and technology, the demand for high-performance optical lenses will continue to increase. In the fields of photography, aerospace, laser, etc., high-performance optical lenses will be more widely used. Optical lenses are generally composed of two spherical surfaces or a spherical surface and a plane, and are generally circular. The use of fixtures is indispensable in the processing of optical lenses. There are many kinds of fixtures. In the process of optical lens edge grinding, a double ejector pin structure is used to clamp the two sides of the optical lens, and then rotate around the axis of the ejector pin for edge grinding. The structure is simple and the cost of use is low, but the ejector pin generally cannot locate the axis of the optical lens during use. During the installation process, there will be defects such as the optical lens and the ejector pin being non-concentric, which will affect the processing quality of the optical lens. There is also a positioning ring added to position the optical lens. After the optical lens is clamped, the positioning ring is removed to expose its edge, which is convenient for edge grinding and has a good positioning effect, but the use process is cumbersome. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a clamp for processing an optical lens. During the installation process, the positioning pins can be used to centrally position the optical lens, and after the optical lens is clamped, the positioning assembly can automatically shrink to one side to expose a circle of the optical lens, thereby facilitating the processing of the edge of the optical lens and effectively solving the problems in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for processing an optical lens, comprising a base;
[0005] Base: A moving seat is slidably connected to the left side of its upper surface, and an upper end of the inside of the moving seat is rotatably connected to an ejector pin 1 through a bearing. A fixed seat is provided on the right side of the upper surface of the base, and a positioning tube is slidably connected to the upper end of the inside of the fixed seat, and an ejector pin 2 is slidably connected to the inside of the positioning tube. The lower end of the right side of the fixed seat is rotatably connected to a lever through a rotating shaft, and a pin 2 is provided at the right end of the positioning tube, and the pin 2 is slidably connected to a long sliding hole 2 at the upper end of the lever. A pin 1 is provided at the right end of the ejector pin 2, and the pin 1 is slidably connected to a long sliding hole 1 in the middle of the lever. During the installation process, the positioning pin can be used to center the optical lens, and after the optical lens is clamped, the positioning assembly can automatically shrink to one side to leak out a circle of the optical lens, which is convenient for the processing of the edge of the optical lens. The optical lens processing fixture has a good fixing effect on the optical lens and is highly convenient to use.
[0006] Furthermore, the left end of the second ejector pin is rotatably connected to a right lens seat via a bearing, the right end of the first ejector pin is provided with a left lens seat, and an arc-shaped groove is provided on the right side surface of the left lens seat to facilitate the rotation of the optical lens.
[0007] Furthermore, a cylinder is provided on the left side of the upper surface of the base, and the telescopic end of the cylinder is fixedly connected to the lower end of the left side surface of the movable seat, so as to facilitate the movement of the movable seat.
[0008] Furthermore, a left positioning ring is provided at the left end of the outer arc surface of the positioning tube, and a spring is movably sleeved in the middle of the outer arc surface of the positioning tube. The spring is located between the left positioning ring and the fixing seat to facilitate the leftward movement and resetting of the positioning tube.
[0009] Furthermore, a positioning sleeve is provided on the right side surface of the left positioning ring, and the positioning sleeve is arranged in cooperation with the moving seat to limit the rightward movement position of the positioning tube.
[0010] Furthermore, a right positioning ring is provided at the right end of the outer arc surface of the positioning tube. The right positioning ring is located on the right side of the fixing seat to limit the leftward movement of the positioning tube.
[0011] Furthermore, evenly distributed positioning pins are provided on the left side of the positioning tube to facilitate the positioning of the optical lens.
[0012] Compared with the prior art, the beneficial effects of the utility model are: the optical lens processing fixture has the following advantages:
[0013] The optical lens is attached to the left side of the positioning tube and the right lens seat. The three positioning pins are used to center and position the optical lens. As the telescopic end of the cylinder extends, the optical lens is pushed to move to the right. The optical lens drives the ejector pin 2 to slide to the right along the positioning tube through the right lens seat. The positioning tube drives the pin shaft 1 to move synchronously. The pin shaft 1 drives the lever to rotate clockwise around the shaft. At the same time, the pin shaft 1 and the long sliding hole 1 in the middle of the lever slide relative to each other. The long sliding hole 2 at the upper end of the lever will drive the positioning tube to move to the right through the pin shaft 2. The distance between the pin shaft 2 and the shaft is greater than the distance between the pin shaft 1 and the shaft. The speed of the positioning tube moving to the right will be greater than the speed of the ejector pin 2 moving to the right, and then the positioning tube drives The locating pin is separated from the edge of the optical lens, and the left locating ring moves right synchronously to compress the spring. After the locating sleeve contacts the moving seat, it will limit the movement of the locating tube, and the optical lens stops moving right. Then the telescopic end of the cylinder stops extending to complete the fixation of the optical lens. At the same time, after the locating pin retracts to the right, a circle of the optical lens can be exposed, and then the edge grinding can be performed. During the installation process, the locating pin can be used to center the optical lens, and after the optical lens is clamped, the positioning assembly can automatically shrink to one side to expose a circle of the optical lens, which is convenient for the processing of the edge of the optical lens. The optical lens processing fixture has a good fixing effect on the optical lens and is highly convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a schematic cross-sectional structural diagram of the right side of the utility model.
[0016] In the figure: 1 base, 2 moving seat, 3 ejector pin 1, 4 fixed seat, 5 positioning tube, 6 ejector pin 2, 7 lever, 8 pin shaft 1, 9 pin shaft 2, 10 positioning pin, 11 right lens seat, 12 left lens seat, 13 left positioning ring, 14 spring, 15 positioning sleeve, 16 cylinder, 17 arc groove, 18 right positioning ring. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-2 ,This embodiment provides a technical solution: a fixture for processing an optical lens, comprising a base 1;
[0019] Base 1: A movable base 2 is slidably connected to the left side of its upper surface, and an upper end of the movable base 2 is rotatably connected to an ejector pin 3 through a bearing. A fixed base 4 is provided on the right side of the upper surface of the base 1, and a positioning tube 5 is slidably connected to the upper end of the fixed base 4. The positioning tube 5 is slidably connected to an ejector pin 2 6 inside. The lower end of the right side of the fixed base 4 is rotatably connected to a lever 7 through a rotating shaft. A pin 2 9 is provided at the right end of the positioning tube 5, and the pin 2 9 is slidably connected to the long sliding hole 2 at the upper end of the lever 7. The positioning tube 5 drives the pin 1 8 to move synchronously, and the pin 1 8 drives the lever 7 to rotate clockwise around the rotating shaft. At the same time, the pin 1 8 slides relative to the long sliding hole 1 in the middle of the lever 7, and the upper end of the lever 7 The long sliding hole 2 will drive the positioning tube 5 to move rightward through the pin shaft 2 9. The distance between the pin shaft 2 9 and the rotating shaft is greater than the distance between the pin shaft 1 8 and the rotating shaft. The speed of the positioning tube 5 moving rightward will be greater than the speed of the ejector pin 2 6 moving rightward. The right end of the ejector pin 2 6 is provided with a pin shaft 1 8, and the pin shaft 1 8 is slidably connected to the long sliding hole 1 in the middle of the lever 7. The left end of the ejector pin 2 6 is rotatably connected with the right lens seat 11 through a bearing. The optical lens is attached to the left side of the positioning tube 5 and the right lens seat 11. The optical lens drives the ejector pin 2 6 to slide rightward along the positioning tube 5 through the right lens seat 11. The right end of the ejector pin 3 is provided with a left lens seat 12, and the moving seat 2 drives the left lens seat 12 to move right through the ejector pin 1 3. The right side of the left lens seat 12 is provided with an arc groove 17, and the arc groove 17 fits with the spherical surface of the optical lens to perform preliminary positioning of the optical lens. A cylinder 16 is provided on the left side of the upper surface of the base 1. The telescopic end of the cylinder 16 is fixedly connected to the lower end of the left side of the movable seat 2. The telescopic end of the cylinder 16 drives the movable seat 2 to slide to the right along the guide rail on the upper surface of the base 1. A left positioning ring 13 is provided at the left end of the outer arc surface of the positioning tube 5. A spring 14 is movably sleeved in the middle of the outer arc surface of the positioning tube 5. The spring 14 is located between the left positioning ring 13 and the fixed seat 4. A positioning sleeve 15 is provided on the right side of the left positioning ring 13. The positioning sleeve 15 is arranged in cooperation with the movable seat 2. The left positioning The ring 13 moves right synchronously to compress the spring 14. After the positioning sleeve 15 contacts the moving seat 2, it will limit the movement of the positioning tube 5, and the optical lens stops moving right. Then the telescopic end of the cylinder 16 stops extending to complete the fixation of the optical lens. The spring 14 pushes the left positioning ring 13 and the positioning tube 5 to move left and reset under the support of the fixed seat 4. The right end of the outer arc surface of the positioning tube 5 is provided with a right positioning ring 18. The right positioning ring 18 is located on the right side of the fixed seat 4. The right positioning ring 18 limits the right movement position of the positioning tube 5. The left side of the positioning tube 5 is provided with evenly distributed positioning pins 10. Three positioning pins 10 are used to center and position the optical lens. The positioning tube 5 drives the positioning pins 10 to separate from the edge of the optical lens.
[0020] The working principle of the optical lens processing fixture provided by the utility model is as follows: when in use, the optical lens is attached to the left side of the positioning tube 5 and the right lens seat 11, three positioning pins 10 are used to center and position the optical lens, and then the external control switch is adjusted to control the solenoid valve, and the solenoid valve adjusts the compressed air to realize the driving of the cylinder 16, and the telescopic end of the cylinder 16 drives the moving seat 2 to slide to the right along the guide rail on the upper surface of the base 1, and the moving seat 2 drives the left lens seat 12 to move to the right through the ejector pin 13, and the arc groove 17 fits with the spherical surface of the optical lens to perform preliminary positioning of the optical lens, and as the telescopic end of the cylinder 16 extends, it will push the optical lens to move to the right, and the optical lens drives the ejector pin 2 6 to slide to the right along the positioning tube 5 through the right lens seat 11, and the positioning tube 5 drives the pin shaft 1 8 to move synchronously, and the pin shaft 1 8 toggles the lever 7 to rotate clockwise around the rotating shaft, and at the same time, the pin shaft 1 8 and the long sliding hole 1 in the middle of the lever 7 slide relative to each other, and the long sliding hole 2 at the upper end of the lever 7 will The positioning tube 5 is driven to move to the right by the pin shaft 2 9. The distance between the pin shaft 2 9 and the rotating shaft is greater than the distance between the pin shaft 1 8 and the rotating shaft. The speed of the positioning tube 5 moving to the right will be greater than the speed of the ejector pin 2 6 moving to the right, and then the positioning tube 5 drives the positioning pin 10 to separate from the edge of the optical lens. The left positioning ring 13 synchronously moves to the right to compress the spring 14. After the positioning sleeve 15 contacts the moving seat 2, it will limit the movement of the positioning tube 5, and the optical lens stops moving to the right. Then the telescopic end of the cylinder 16 stops extending to complete the fixation of the optical lens. At the same time, after the positioning pin 10 is retracted to the right, a circle of the optical lens can be leaked out, and then the edge grinding process can be carried out. During the processing, the ejector pin 3 can be rotated, and the ejector pin 3 drives the optical lens to rotate under the support of the right lens seat 11 through the left lens seat 12, thereby facilitating the processing of a circle of the optical lens. After the processing is completed, the telescopic end of the cylinder 16 contracts, and the spring 14 pushes the left positioning ring 13 and the positioning tube 5 to move to the left and reset under the support of the fixed seat 4, and then the optical lens is removed to complete the processing.
[0021] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A fixture for processing an optical lens, characterized in that: comprising a base (1); The base (1) has a movable seat (2) slidably connected to the left side of its upper surface, and the upper end of the movable seat (2) is rotatably connected to a pin (3) via a bearing. A fixed seat (4) is provided on the right side of the upper surface of the base (1), and a positioning tube (5) is slidably connected to the upper end of the fixed seat (4). The positioning tube (5) is slidably connected to a pin (6) inside. The lower end of the right side of the fixed seat (4) is rotatably connected to a lever (7) via a rotating shaft. The right end of the positioning tube (5) is provided with a pin (9), and the pin (9) is slidably connected to a long sliding hole (2) at the upper end of the lever (7). The right end of the pin (6) is provided with a pin (8), and the pin (8) is slidably connected to a long sliding hole (1) in the middle of the lever (7).
2. The optical lens processing fixture according to claim 1, characterized in that: The left end of the second ejector pin (6) is rotatably connected to a right lens seat (11) via a bearing, and the right end of the first ejector pin (3) is provided with a left lens seat (12), and the right side surface of the left lens seat (12) is provided with an arc-shaped groove (17).
3. The optical lens processing fixture according to claim 1, characterized in that: A cylinder (16) is provided on the left side of the upper surface of the base (1), and the telescopic end of the cylinder (16) is fixedly connected to the lower end of the left side surface of the movable seat (2).
4. The optical lens processing fixture according to claim 1, characterized in that: A left positioning ring (13) is provided at the left end of the outer arc surface of the positioning tube (5), and a spring (14) is movably sleeved in the middle of the outer arc surface of the positioning tube (5), wherein the spring (14) is located between the left positioning ring (13) and the fixing seat (4).
5. The optical lens processing fixture according to claim 4, characterized in that: A positioning sleeve (15) is provided on the right side surface of the left positioning ring (13), and the positioning sleeve (15) is arranged in cooperation with the movable seat (2).
6. The optical lens processing fixture according to claim 1, characterized in that: A right positioning ring (18) is provided at the right end of the outer arc surface of the positioning tube (5), and the right positioning ring (18) is located on the right side of the fixing seat (4).
7. The optical lens processing fixture according to claim 1, characterized in that: The left side surface of the positioning tube (5) is provided with evenly distributed positioning pins (10).