Large-size lens machining tool clamp
By designing fixtures for components such as lifting table, bottom bracket and needle roller, the problem of unstable large-size lenses in processing is solved, and high-precision and efficient lens rounding processing is achieved, reducing waste rate and simplifying operation.
Patent Information
- Application Number
- CN202422238691.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Traditional fixtures are prone to unstable when clamping large-sized and heavy lenses, resulting in reduced processing accuracy and damage to the lens, making it difficult to meet the requirements of high-precision rounding.
A processing fixture including a base, clamping mechanism and support structure is designed, and components such as lifting table, bottom bracket, rolling needle and anti-slip glue block are used to achieve stable clamping and limiting of large-sized lenses, reducing friction through rolling friction, and preventing lenses from shifting and falling.
It improves the stability and accuracy of large-size lens processing, reduces waste rate, simplifies operating procedures, and facilitates maintenance and maintenance.
Smart Images
Figure CN223114919U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of jigs, and particularly relates to a processing jig for large-size lenses. Background Technique
[0002] Optical glass lenses are obtained by mixing oxides such as high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, and barium according to a specific scientific formula, and then performing high-temperature melting treatment in a platinum crucible. During the melting process, ultrasonic technology is required to fully stir to ensure the uniformity of the mixture and remove the bubbles therein. After melting, the glass needs to undergo a long and slow cooling process to prevent internal stress caused by rapid cooling. The cooled glass block needs to be strictly detected by precise optical instruments, including key indicators such as purity, transparency, uniformity, refractive index, and dispersion rate, to ensure that it meets the established specification standards. For the qualified glass blocks passing the detection, further heating and forging treatment will be carried out to finally make the blanks of optical lenses.
[0003] In the production process of optical lenses, especially for large-size and thick lenses, the rounding treatment of the edges is an important link. Traditional lens rounding equipment often relies on left and right clamping structures supplemented with adhesives to fix the lens firmly, so that the lens blank is in a suspended state. Subsequently, the grinding mechanism is arranged on one side, the lens is driven to rotate by the jig, and the trimming abrasive of the grinding mechanism is brought into contact with the edge of the lens to improve the circularity accuracy of the lens edge by grinding.
[0004] However, when it comes to large-size and heavy lenses, due to the large weight of the lens itself and the influence of gravity and centrifugal force generated during rotation, traditional jigs are extremely prone to instability when clamping such lenses, resulting in the lens dropping during the trimming process, thereby causing a decline in processing accuracy, even damage to the lens, and a high scrap rate, making it difficult to meet the requirements of high-precision rounding processing.
[0005] In view of this, the utility model aims to provide a processing jig designed specifically for large-size lenses, enhance the clamping stability, optimize the operation convenience, avoid the dropping problem of large-size and thick lenses during clamping, and ensure the stability of the processing process and the high quality of the product.
[0006] Regarding the problems in the related technology, no effective solutions have been proposed yet. Content of the Utility Model
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-size lens processing tooling fixture, including a base, a clamping mechanism and a supporting structure, the lifting platform is fixed at the center of the top of the base, the lifting end of the lifting platform is installed with a base, the top of the lifting platform is installed with a base, a positioning groove is opened inside the base, and rollers are evenly installed on the edge of the positioning groove of the base, the rollers and the base are rotatably connected, the clamping mechanism includes a base, the base is symmetrically arranged on both sides of the base, and is slidably connected to the top of the base, a distance adjustment component is arranged at the bottom of the base, a connecting shaft is rotatably connected to one side of the base, an anti-slip rubber block is fixed to one end of the connecting shaft, and a driving motor is installed at the other end of the connecting shaft of one of the bases.
[0008] As a preferred technical solution of the utility model, the positioning groove is a semicircular structure, and the rolling needle is arranged at the edge of the positioning groove of the semicircular structure.
[0009] As a preferred technical solution of the utility model, the pitch adjustment component includes a screw rod, which is arranged inside the base and rotatably connected to both ends of the base. Both ends of the screw rod body are threadedly connected to nut seats, and the nut seat is connected to the base.
[0010] As a preferred technical solution of the utility model, the threads at both ends of the screw rod are opposite, and the internal threads of the nut seat adapted thereto are also opposite.
[0011] As a preferred technical solution of the utility model, the lifting platform and the bottom support are detachable structures.
[0012] As a preferred technical solution of the utility model, the interior of the lifting platform is a hollow structure, and the side walls are a hollow structure.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model is designed to stably carry and effectively limit large-sized thick lenses by setting a supporting structure, thereby effectively preventing the lenses from shifting or falling during the clamping and rounding process, and significantly improving the accuracy and efficiency of rounding the edges of large-sized thick lenses. This design not only enhances the stability of the lenses in the processing flow, but also greatly reduces the risk of processing failure caused by lens displacement, thereby reducing the scrap rate. Its structural design is concise and clear, the operation process is simple and quick, and it is also convenient for subsequent maintenance and care. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the bottom support in the utility model;
[0018] In the figure: 1. base; 2. lifting platform; 3. bottom bracket; 4. positioning groove; 5. needle roller; 6. base; 7. connecting shaft; 8. anti-slip rubber block; 9. driving motor; 10. screw; 11. nut seat. DETAILED DESCRIPTION
[0019] 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.
[0020] Example
[0021] See also Figure 1-2 The utility model provides the following technical solutions: a large-size lens processing fixture, including a base 1, a clamping mechanism and a supporting structure. The supporting structure is mainly composed of a lifting platform 2, which is fixed at the center position of the top of the base 1 to ensure the stability of the supporting structure. A base 3 is installed at the top end of the lifting platform 2, and a positioning groove 4 is opened inside it to achieve precise positioning of the lens. It is worth noting that roller needles 5 are evenly distributed on the edge of the base 3, and a flexible rotation connection is achieved between the roller needles 5 and the base 3, aiming to reduce the friction and wear of the lens during the processing process and ensure the processing quality. The clamping mechanism adopts a double base 6 design, which is symmetrically arranged on both sides of the base 3 and is slidably connected to the top of the base 1. This design not only improves the stability of the clamping, but also facilitates flexible adjustment according to the size of the lens and convenient clamping and loosening. The bottom of the base 6 is equipped with a distance adjustment component to achieve the clamping and loosening of the lens. In addition, a connecting shaft 7 is cleverly arranged on one side of the base 6, and a non-slip rubber block 8 is fixed to one end of the connecting shaft 7 to ensure effective clamping of the lens without slipping. A driving motor 9 is installed at the other end of the connecting shaft 7 of one of the bases 6, which improves the automation level of the clamping mechanism and makes the entire processing process more efficient and convenient.
[0022] In order to facilitate the limiting and fixing of the lens, in this embodiment, as a preferred technical solution of the utility model, the positioning groove 4 is a semicircular structure, and the roller needle 5 is arranged at the edge of the positioning groove 4 of the semicircular structure.
[0023] In order to facilitate the adjustment of the simultaneous clamping or relaxation of the two bases 6 on the lens, in this embodiment, as a preferred technical solution of the present invention, the distance adjustment assembly includes a screw rod 10. The screw rod 10 is arranged inside the base 1 and is rotatably connected to both ends of the base 1. Threaded seats 11 are threadedly connected to both ends of the screw rod 10. The threaded seats 11 are connected to the bases 6. The threads at both ends of the screw rod 10 are opposite, and the internal threads of the threaded seats 11 adapted thereto are also opposite.
[0024] In order to facilitate the replacement of the base 3 with different inner diameter positioning grooves 4, in this embodiment, as a preferred technical solution of the present invention, the structure between the lifting table 2 and the base 3 is detachable.
[0025] In order to ensure the timely discharge of the cleaning water during the rounding process, in this embodiment, as a preferred technical solution of the present invention, the inside of the lifting table 2 is a hollow structure, and the side wall is a hollowed-out structure.
[0026] In summary, by implementing the technical solution of the present invention, the specific operation is as follows: First, a customized base 3 needs to be selected and firmly connected to the lifting table 2. The inner diameter of the positioning groove 4 of the base 3 should be slightly larger than the diameter of the lens. Subsequently, the lens is steadily placed inside the positioning groove 4 of the base 3, and it is ensured that the lens is in close contact with the surface of the needle roller 5 to ensure its stability and functionality. Subsequently, the height of the lifting table 2 is adjusted so that the center point of the lens and the center point of the anti-slip rubber block 8 are on the same axis. The screw rod 10 is rotated, and the rotation mechanism of the screw rod 10 is used to cause the two threaded seats 11 to displace along the screw rod 10, thereby driving the two bases 6 to approach each other until the anti-slip rubber block 8 tightly clamps the lens to achieve its firm fixation. Further, the drive motor 9 is connected to the anti-slip rubber block 8 through the connecting shaft 7 to output power to drive the lens blank to rotate. During this rotation process, the needle roller 5 in the positioning groove 4 not only bears the weight of the lens but also significantly reduces the friction between the lens and the positioning groove 4 of the base 3 through rolling friction, effectively restricting the movement range of the lens, thereby preventing the lens from shifting or sliding during the rounding process due to its own gravity and the centrifugal force generated by rotation.
[0027] Finally, it should be noted that: in the present invention, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", "rotary connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A large-size lens processing tooling fixture, comprising a base (1), a clamping mechanism and a supporting structure, characterized in that: The supporting structure includes a lifting platform (2), which is fixed at the center of the top of the base platform (1). A bottom support (3) is installed at the jacking end of the lifting platform (2). A positioning groove (4) is formed inside the bottom support (3). Needle rollers (5) are evenly installed at the edge of the positioning groove (4) of the bottom support (3). The needle rollers (5) are rotatably connected to the bottom support (3). The clamping mechanism includes a base (6), which is symmetrically arranged on both sides of the bottom support (3) and is slidably connected to the top of the base platform (1). An adjustable distance component is arranged at the bottom of the base (6). A connecting shaft (7) is rotatably connected to one side of the base (6). An anti-slip rubber block (8) is fixed at one end of the connecting shaft (7). A driving motor (9) is installed at the other end of the connecting shaft (7) of one of the bases (6).
2. The large-size lens processing tooling fixture according to claim 1, characterized in that: The positioning groove (4) is in a semi-circular structure, and the needle rollers (5) are arranged at the edge of the semi-circular structure of the positioning groove (4).
3. A large-size lens processing tooling fixture according to claim 1, characterized in that: The adjustable distance component includes a screw rod (10), which is arranged inside the base platform (1) and is rotatably connected to both ends of the base platform (1). Threaded nut seats (11) are threadedly connected to both ends of the screw rod (10). The nut seats (11) are connected to the base (6).
4. The large-size lens processing tooling fixture according to claim 3, characterized in that: The threads at both ends of the screw rod (10) are opposite, and the internal threads of the nut seats (11) adapted to it are also opposite.
5. A large-size lens processing tooling fixture according to claim 1, characterized in that: The lifting platform (2) and the bottom support (3) are of a detachable structure.
6. The large-sized lens processing tooling fixture according to claim 1, wherein: The inside of the lifting platform (2) is a hollow structure, and the side wall is a hollowed-out structure.