Clamp for optical lens machining

Abstract

The utility model belongs to the technical field of optical lens processing, and particularly relates to a fixture for optical lens processing, which comprises a base, the top of the base is rotatably connected with five rotating shafts I through bearings, and the top of the base is provided with a transmission mechanism for driving the five rotating shafts I to rotate synchronously. Through the arrangement of the base, the first rotating shaft, the transmission mechanism, the lower fixing block, the U-shaped plate, the first air cylinder, the movable plate, the second rotating shaft, the upper fixing block and the positioning mechanism, in the using process of the clamp for optical lens machining, the clamp can conduct clamping operation on a plurality of optical lenses at a time, and therefore when the number of the optical lenses needing to be subjected to corner polishing is large, the machining efficiency is greatly improved. According to the optical lens polishing device, the polishing efficiency can be improved, meanwhile, under cooperation of the positioning mechanism, the optical lens to be clamped can be subjected to center pre-positioning so that the optical lens can be clamped and fixed between the lower fixing block and the upper fixing block, the size of the positioning mechanism can be adjusted, and therefore pre-positioning operation can be conducted on the optical lenses of different sizes.

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] Optical glass is a glass block made by mixing high-purity oxides of silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium, etc. according to a specific formula, melting it at high temperature in a platinum crucible, and undergoing a series of operations. The optical glass must then be measured by optical instruments to check whether its purity, transparency, uniformity, refractive index and dispersion meet the specifications. The qualified glass block is finally heated and forged into an optical lens blank. During the production and processing of optical lenses, a grinding device is used to grind its edges and corners. When grinding it, a fixture is required to fix the optical lens. However, the current optical lens grinding fixture can only clamp one optical lens at a time during use, and the fixture lacks components for pre-positioning the optical lens, which makes it inconvenient for staff to operate when limiting and fixing the optical lens. Therefore, we propose an optical lens processing fixture to solve the above problems. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a fixture for processing optical lenses, which solves the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A fixture for processing optical lenses, comprising a base, the top of the base being rotatably connected to five rotating shafts (I) via bearings, the top of the base being provided with a transmission mechanism for driving the five rotating shafts (I) to rotate synchronously, the tops of the rotating shafts (I) being fixed with lower fixed blocks, a U-shaped plate being fixed on the base, the tops of the U-shaped plate being fixed with two cylinders (I), the ejection ends of the two cylinders (I) slidingly passing through the U-shaped plate and extending to the bottom thereof and being fixed with a movable plate, the bottom of the movable plate being rotatably connected to five rotating shafts (II) via bearings, the bottom ends of the rotating shafts (II) being fixed with upper fixed blocks, and the top of the base being provided with a positioning mechanism for centering the lens.

[0008] Furthermore, the transmission mechanism includes a driving shaft rotatably connected to the top of the base through a bearing, sprockets are fixed to the surfaces of the driving shaft and the five rotating shafts, and the six sprockets are connected through chain transmission. A protective cover is fixed to the top of the base, and a motor is fixed inside the protective cover, and the output end of the motor is fixedly connected to the top of the driving shaft.

[0009] Furthermore, the positioning mechanism includes two cylinders 2 fixed on the top of the base, and push plates are fixed to the ejection ends of the two cylinders 2. The outer side of the rotating shaft 1 is provided with a guide rail fixed to the top of the base. The surface of the guide rail is limitedly and slidably connected to two positioning blocks. One side wall of the positioning block is rotatably connected to a connecting rod through a pin shaft, and the other end of the connecting rod is rotatably connected to the push plate through a pin shaft.

[0010] Furthermore, guide grooves are provided on both inner walls of the U-shaped plate, and guide blocks adapted to the guide grooves are fixed on both inner walls of the movable plate.

[0011] Furthermore, two mounting plates are fixed on the surface of the base, and mounting holes are equidistantly formed on the tops of the mounting plates.

[0012] Furthermore, non-slip rubber pads are fixed on the surfaces of the lower fixing block and the upper fixing block.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a fixture for processing optical lenses, which has the following features:

[0015] Beneficial effects:

[0016] The utility model is provided with a base, a rotating shaft 1, a transmission mechanism, a lower fixed block, a U-shaped plate, a cylinder 1, a movable plate, a rotating shaft 2, an upper fixed block and a positioning mechanism. When using the optical lens processing fixture, the fixture can clamp multiple optical lenses at one time, so that when a large number of optical lenses need to be polished at the corners, the polishing efficiency can be improved. At the same time, with the cooperation of the positioning mechanism, the optical lens to be clamped can be pre-positioned in the center so that it can be clamped and fixed between the lower fixed block and the upper fixed block. The size of the positioning mechanism is adjustable, so that the pre-positioning operation of optical lenses of different sizes can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the bottom of the base structure of the utility model;

[0019] Figure 3This is a schematic diagram of the positioning mechanism structure of the utility model.

[0020] In the figure: 1. Base; 2. Rotating shaft 1; 3. Transmission mechanism; 301. Driving shaft; 302. Sprocket; 303. Chain; 304. Protective cover; 305. Motor; 4. Lower fixing block; 5. U-shaped plate; 6. Cylinder 1; 7. Moving plate; 8. Rotating shaft 2; 9. Upper fixing block; 10. Positioning mechanism; 1001. Cylinder 2; 1002. Push plate; 1003. Guide rail; 1004. Positioning block; 1005. Connecting rod; 11. Guide groove; 12. Guide block; 13. Mounting plate; 14. Mounting hole; 15. Anti-slip rubber pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] like Figure 1 and Figure 2As shown, an embodiment of the present invention proposes a fixture for processing optical lenses, including a base 1, two mounting plates 13 are fixed on the surface of the base 1, and mounting holes 14 are evenly spaced on the top of the mounting plates 13, which makes it more convenient to install and fix the base 1. The top of the base 1 is rotatably connected to five rotating shafts 2 through bearings. The top of the base 1 is provided with a transmission mechanism 3 for driving the five rotating shafts 2 to rotate synchronously. The tops of the rotating shafts 2 are all fixed with lower fixing blocks 4. A U-shaped plate 5 is fixed on the base 1, and the top of the U-shaped plate 5 is fixed with a U-shaped plate 5. There are two cylinders 6 fixed on the top, and the ejection ends of the two cylinders 6 slide through the U-shaped plate 5 to extend to the bottom thereof and are fixed with a movable plate 7. The inner walls on both sides of the U-shaped plate 5 are provided with guide grooves 11. The two side walls of the movable plate 7 are fixed with guide blocks 12 adapted to the guide grooves 11, which can play an auxiliary guiding role for the movable plate 7 so that it will be more stable during the up and down sliding process. The bottom of the movable plate 7 is rotatably connected to five rotating shafts 2 8 through bearings. The bottom ends of the rotating shafts 2 8 are fixed with upper fixed blocks 9. The lower fixed block 4 and the upper fixed block 9 are connected to the movable plate 7. The surfaces are fixed with anti-skid rubber pads 15, so that the optical lens will be more stable after being fixed between the lower fixing block 4 and the upper fixing block 9. At the same time, the anti-skid rubber pads 15 can protect the surface of the optical lens and prevent the lower fixing block 4 and the upper fixing block 9 from causing damage to its surface. A positioning mechanism 10 is provided on the top of the base 1 for centering the lens. When using this optical lens processing fixture, after installing it in a suitable position, the positioning mechanism 10 is adjusted to the size suitable for the lens to be polished, and then the optical lens can be placed on the lower fixing block 4, and then the two cylinders 1 6 are started to drive the movable plate 7 to move downward. After the movable plate 7 moves downward, the upper fixing block 9 can be driven downward through the rotating shaft 2 8. At this time, the optical lens can be tightly limited between the lower fixing block 4 and the upper fixing block 9, and then the positioning mechanism 10 can be moved away from the optical lens to avoid affecting the polishing work of the optical lens. Then, the transmission mechanism 3 is started to drive the fixed multiple optical lenses to rotate, and finally the polishing piece of the polishing device is driven close to the corners of the optical lens to achieve the polishing operation of its corners.

[0024] like Figure 1 and Figure 2As shown, in some embodiments, the transmission mechanism 3 includes a driving shaft 301 rotatably connected to the top of the base 1 through a bearing, and sprockets 302 are fixed to the surfaces of the driving shaft 301 and the five rotating shafts 2. The six sprockets 302 are connected through a chain 303. A protective cover 304 is fixed to the top of the base 1, and a motor 305 is fixed inside the protective cover 304. The output end of the motor 305 is fixedly connected to the top of the driving shaft 301. When in use, the motor 305 is started to drive the driving shaft 301 to rotate. After the driving shaft 301 rotates, with the cooperation of the sprocket 302 and the chain 303, the five rotating shafts 2 can be driven to rotate synchronously at the same time, thereby driving the clamped optical lens to rotate.

[0025] like Figure 1 and Figure 3 As shown, in some embodiments, the positioning mechanism 10 includes two cylinders 1001 fixed to the top of the base 1, and the ejection ends of the two cylinders 1001 are fixed with push plates 1002. The outer sides of the rotating shaft 2 are provided with guide rails 1003 fixed to the top of the base 1. The surfaces of the guide rails 1003 are limitedly and slidably connected to two positioning blocks 1004. One side wall of the positioning block 1004 is rotatably connected to a connecting rod 1005 through a pin shaft, and the other end of the connecting rod 1005 is rotatably connected to the push plate 1002 through a pin shaft. When in use, the push plate 1002 can be driven to move by starting the extension and retraction of the ejection ends of the two cylinders 1001. After the push plate 1002 moves, it can drive the positioning block 1004 to move with the cooperation of the connecting rod 1005. After the corresponding two positioning blocks 1004 move in the opposite direction, they can be adjusted to the appropriate size of the optical lens to be processed, thereby playing the role of center pre-positioning of the optical lens to be processed.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fixture for processing optical lenses, comprising a base (1), characterized in that: The top of the base (1) is rotatably connected to five rotating shafts (2) via bearings. The top of the base (1) is provided with a transmission mechanism (3) for driving the five rotating shafts (2) to rotate synchronously. The tops of the rotating shafts (2) are all fixed with lower fixed blocks (4). A U-shaped plate (5) is fixed on the base (1). Two cylinders (6) are fixed on the top of the U-shaped plate (5). The ejection ends of the two cylinders (6) slide through the U-shaped plate (5) and extend to the bottom thereof and are fixed with a moving plate (7). The bottom of the moving plate (7) is rotatably connected to five rotating shafts (8) via bearings. The bottom ends of the rotating shafts (8) are all fixed with upper fixed blocks (9). The top of the base (1) is provided with a positioning mechanism (10) for centering the lens.

2. The optical lens processing fixture according to claim 1, characterized in that: The transmission mechanism (3) comprises a driving shaft (301) rotatably connected to the top of the base (1) via a bearing, sprockets (302) are fixed to the surfaces of the driving shaft (301) and the five rotating shafts (2), and the six sprockets (302) are connected in transmission via a chain (303), a protective cover (304) is fixed to the top of the base (1), a motor (305) is fixed inside the protective cover (304), and an output end of the motor (305) is fixedly connected to the top of the driving shaft (301).

3. The optical lens processing fixture according to claim 1, characterized in that: The positioning mechanism (10) comprises two cylinders (1001) fixed on the top of the base (1), the ejection ends of the two cylinders (1001) are fixed with push plates (1002), the outer sides of the rotating shaft (2) are provided with guide rails (1003) fixed on the top of the base (1), the surfaces of the guide rails (1003) are connected to two positioning blocks (1004) in a limited sliding manner, one side wall of the positioning block (1004) is rotatably connected to a connecting rod (1005) through a pin shaft, and the other end of the connecting rod (1005) is rotatably connected to the push plate (1002) through a pin shaft.

4. The optical lens processing fixture according to claim 1, characterized in that: Both inner walls of the U-shaped plate (5) are provided with guide grooves (11), and both inner walls of the movable plate (7) are fixed with guide blocks (12) adapted to the guide grooves (11).

5. The optical lens processing fixture according to claim 1, characterized in that: Two mounting plates (13) are fixed on the surface of the base (1), and mounting holes (14) are equidistantly formed on the tops of the mounting plates (13).

6. The optical lens processing fixture according to claim 1, characterized in that: Anti-skid rubber pads (15) are fixed on the surfaces of the lower fixing block (4) and the upper fixing block (9).

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