CN219235012U - Clamp for processing end face of optical glass rod - Google Patents

Abstract

The utility model provides a clamp for processing the end face of an optical glass rod, which can clamp a plurality of glass rods at one time and meet the requirement of the quality of the processed end face. The clamp for processing the end face of the optical glass rod is characterized in that positioning holes for fixing long screws are formed in two end grinding discs and a middle disc, the two end grinding discs and the middle disc are connected together through the long screws, through holes with the same shape and size are formed in the two end grinding discs and the middle disc, and L-shaped clamping plates are arranged around the through holes. According to the utility model, clamping of a plurality of glass rods is realized through the two end grinding discs, the middle disc and the long screw rod, and the glass rods with longer lengths can be clamped; the cylindrical surface of the glass rod can be protected by fastening the glass rod through the L-shaped clamping plate, scratches on the cylindrical surface of the glass rod are avoided, the glass rod is prevented from loosening in the processing process, and the quality of the end surface of the processed glass rod meets the requirement; the clamp is simple and quick, and is particularly suitable for clamping and processing the glass rod with the length of 300-600 mm.

Description

Clamp for processing end face of optical glass rod

Technical Field

The utility model belongs to the technical field of optical glass bar cold working, and particularly relates to a clamp for processing an optical glass bar end face.

Background

With the continuous change of the optical terminal market, in order to meet the demands of various forms of optical glass, the shape of the optical glass is gradually changed from a single strip form to various forms, and an optical glass rod is one of the optical glass rods. The glass rod produced by primary smelting needs to be subjected to finish machining for secondary rod pulling or optical fiber drawing products, and the finish machining mainly refers to the cylindricity, the cylindrical surface and the end face of the glass rod need to be polished so as to meet the precision requirement.

At present, a corresponding tool can be adopted to grind and polish two end faces of a shorter glass rod with the length lower than 60mm in a high-speed plane, but the end face of the glass rod with the length higher than 60mm is processed, and the processing stroke and the capability of conventional cold processing equipment cannot meet the requirements because the glass rod is larger in diameter and longer in length, particularly the glass rod with the diameter of 30-50mm and the length of 300-600 mm.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the clamp for processing the end face of the optical glass rod, which can clamp a plurality of glass rods at one time and meet the requirement of the quality of the processed end face.

The technical scheme adopted for solving the technical problems is as follows: the clamp for processing the end face of the optical glass rod comprises two end grinding discs, a middle disc, a long screw and an L-shaped clamping plate, wherein positioning holes for fixing the long screw are formed in the two end grinding discs and the middle disc, the two end grinding discs and the middle disc are connected together through the long screw, through holes with the same shape and size are formed in the two end grinding discs and the middle disc, and the L-shaped clamping plate is installed around the through holes.

Further, the grinding machine also comprises end base plates which are fixed on the two end grinding disks by fastening screws.

Further, the end pad is provided with a through hole.

Further, the number of the long screws is four, four positioning holes are formed in the two end grinding discs and the middle disc, the four long screws respectively penetrate through the four positioning holes in the middle disc, and two ends of the four long screws are respectively fixed on the four positioning holes of the two end grinding discs.

Further, the four long screws are fixed on the middle plate through nuts.

Further, the two end grinding discs and the middle disc are provided with first threaded holes for fixing the L-shaped clamping plates.

Further, second threaded holes for propping up the L-shaped clamping plates are formed in the side edges of the two end grinding discs and the middle disc.

Still further, the two end grinding discs and the middle disc are both cylinders, and the second threaded holes are formed in the side cylindrical surfaces of the two end grinding discs and the middle disc.

Further, a chute capable of adjusting the up-down position of the screw is arranged on the L-shaped clamping plate.

Further, the through hole is a rectangular hole.

The beneficial effects of the utility model are as follows: clamping of a plurality of glass rods is achieved through the two end grinding discs, the middle disc and the long screw rod, and the glass rods with longer lengths can be clamped; the cylindrical surface of the glass rod can be protected by fastening the glass rod through the L-shaped clamping plate, scratches on the cylindrical surface of the glass rod are avoided, the glass rod is prevented from loosening in the processing process, and the quality of the end surface of the processed glass rod meets the requirement; the clamp is simple and quick, can be used for machining by using the existing machining equipment, and is particularly suitable for clamping and machining the glass rod with the length of 300-600 mm.

Drawings

Fig. 1 is a front view of the clamp of the present utility model.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a perspective view of the clamp of the present utility model.

Fig. 4 is a front view of an end mill of the clamp of the present utility model.

Fig. 5 is a cross-sectional view A-A of fig. 4.

Fig. 6 is a B-B cross-sectional view of fig. 5.

Fig. 7 is a front view of the middle plate of the clamp of the present utility model.

Fig. 8 is a C-C cross-sectional view of fig. 7.

Fig. 9 is a D-D cross-sectional view of fig. 8.

Fig. 10 is a front view of an end pad of the clamp of the present utility model.

Fig. 11 is an E-E sectional view of fig. 10.

Fig. 12 is a front view of an L-shaped cleat of the present clip.

Fig. 13 is a perspective view of an L-shaped clamping plate of the clamp of the present utility model.

Detailed Description

As shown in fig. 1 to 3, the clamp for processing the end face of the optical glass rod of the utility model comprises two end grinding discs 1, a middle disc 2, end base plates 3, four long screws 4 and an L-shaped clamping plate 5, wherein the end grinding discs 1 are two base discs for fixing the upper end face and the lower end face of the glass rod 6, four positioning holes 11 are formed in the end grinding discs 1 and used for fixing the four long screws 4, a first threaded hole 12 for fixing the L-shaped clamping plate 5 is formed in the end grinding discs 1, and a second threaded hole 13 is formed in the side edge of the end grinding discs 1 and used for propping up the L-shaped clamping plate 5, as shown in fig. 4 to 6; the middle plate 2 is used for fixing the middle part of a glass rod, four positioning holes 11 are formed in the middle plate 2, four long screws 4 respectively penetrate through the four positioning holes 11 of the middle plate 2, each long screw 4 is fixed on the middle plate 2 through a nut, a first threaded hole 12 for fixing the L-shaped clamping plate 5 is formed in the middle plate 2, and a second threaded hole 13 is formed in the side edge of the middle plate 2 and used for propping against the L-shaped clamping plate 5, as shown in fig. 7-9; the end base plates 3 are fixed on the two end grinding discs 1 by fastening screws, so that the problems of edge breakage, scratch and the like caused by the contact between the end surfaces and the disc surfaces in the grinding and polishing process of the glass rod can be prevented, as shown in figures 10-11; the long screw 4 connects the upper end millstone 1, the lower end millstone 1 and the middle millstone 2 together, and one end of the long screw 4 adopts a reverse wire structure so as to be fixed with the end millstone 1; through holes 7 with the same shape and size are arranged on the end millstone 1, the middle millstone 2 and the end backing plate 3 so as to place glass rods 6; the L-shaped clamping plate 5 is used for fastening the glass rod 6, can protect the cylindrical surface of the glass rod 6 and prevent the cylindrical surface of the glass rod from being scratched and scratched, the L-shaped clamping plate 5 is provided with a sliding groove 51, the L-shaped clamping plate 5 is arranged around the through holes 7 on the end grinding disc 1 and the middle disc 2, and the clamping force of the L-shaped clamping plate 5 on the glass rod 6 can be controlled by adjusting the upper and lower positions of the screw in the L-shaped clamping plate 5, as shown in figures 12-13.

The end grinding disc 1 and the middle disc 2 are both cylinders, and the second threaded holes 13 are arranged on the side cylindrical surfaces of the end grinding disc 1 and the middle disc 2; the through hole 7 is a rectangular hole; the end millstone 1 is made of aluminum alloy plate, has lighter weight, reduces the weight of the clamp, and can be designed according to the specifications of the clamp and the glass rod 6; the middle disc 2 is made of aluminum alloy plate materials, and the size specification and the hole position are the same as those of the end millstone 1; the end base plate 3 is made of polytetrafluoroethylene, is wear-resistant and is commonly used for optical processing of various tool jigs; the L-shaped clamping plate 5 is made of nylon material, and is made of nonmetal material with certain elasticity, so that the cylindrical surface of the glass rod can be better protected.

When the fixture is in work, the locating plate is placed on the base plate, the fixture is placed on the locating plate, the locating plate is a circular ring with the thickness of 5-10mm and the thickness difference is consistent, so that the end face of the glass rod is exposed out of the fixture by 5-10mm, and the base plate is a flat plate with good flatness, so that the exposed height of the end face is basically consistent; sequentially loading the glass rods 6 with the lengths and the outer circles being processed into a clamp, and separating the cylindrical surfaces of two adjacent glass rods 6 by using special rubber to prevent the cylindrical surfaces of the glass rods from being directly contacted and damaging the cylindrical surfaces; after the glass rod 6 is clamped, the distance between the L-shaped clamping plate 5 and the glass rod 6 is properly adjusted according to the clamping position of the glass rod 6, after the adjustment is finished, screws on the side edges of the end grinding disc 1 and the middle disc 2 are sequentially fastened by using a spanner, so that the L-shaped clamping plate 5 is tightly pressed against the glass rod 6, and then the screws in the sliding groove 51 on the L-shaped clamping plate 5 are tightly fastened, so that the glass rod 6 is clamped, and the glass rod 6 is ensured not to loosen in the processing process; the two ends of the clamp are of symmetrical structures, and can be clamped once, so that the processing of two end faces is realized.

Placing a clamp provided with a glass rod on a polishing disc of a fine polishing ring polishing machine, adjusting the angle of a stand column and the position of a roller of the ring polishing machine, enabling two end polishing discs 1 and a middle disc 2 of the clamp to be well attached to the roller, ensuring that the clamp rotates stably in the fine polishing process, sequentially polishing the end face of the glass rod 6 by using 120# silicon carbide, 240# silicon carbide, W40 silicon carbide, W20 silicon carbide and W10 silicon carbide, setting corresponding polishing time, rotating speed and other technological parameters according to the performance of a processed product, and cleaning residual sand stains on the end face after polishing is completed; the fixture provided with the glass rod 6 is placed on a polishing disk of a polishing ring polishing machine, a polishing mold is polyurethane, polishing liquid is cerium oxide, corresponding polishing time, rotating speed and other technological parameters are set according to materials with different performances, after polishing is finished, residual polishing liquid on the end face of the glass rod is cleaned, the polished end face is wiped clean, the end face is inspected under an inspection platform, the fixture can be turned over after the corresponding defect grade and finish requirements are met, and a second end face is processed, wherein the processing method and steps are the same as those of the first end face.

Claims (10)

1. The fixture for processing the end face of the optical glass rod is characterized in that: including two tip mill (1), intermediate lamella (2), long screw rod (4) and L shape splint (5), be provided with locating hole (11) of fixed long screw rod (4) on two tip mill (1) and the intermediate lamella (2), two tip mill (1) link together through long screw rod (4) with intermediate lamella (2), all be provided with through-hole (7) that the shape size is the same on two tip mill (1) and the intermediate lamella (2) install L shape splint (5) all around through-hole (7).

2. The fixture for processing an end face of an optical glass rod according to claim 1, wherein: the grinding machine also comprises end base plates (3), wherein the end base plates (3) are fixed on the two end grinding discs (1) by fastening screws.

3. The fixture for processing an end face of an optical glass rod according to claim 2, wherein: the end base plate (3) is provided with a through hole (7).

4. The jig for processing an end face of an optical glass rod according to claim 1 or 2, wherein: the four long screws (4) are arranged, four positioning holes (11) are formed in the two end grinding discs (1) and the middle disc (2), the four long screws (4) respectively penetrate through the four positioning holes (11) in the middle disc (2), and two ends of the four long screws are respectively fixed on the four positioning holes (11) of the two end grinding discs (1).

5. The fixture for processing an end surface of an optical glass rod according to claim 4, wherein: the four long screws (4) are fixed on the middle plate (2) through nuts.

6. The jig for processing an end face of an optical glass rod according to claim 1 or 2, wherein: the two end grinding discs (1) and the middle disc (2) are provided with first threaded holes (12) for fixing the L-shaped clamping plates (5).

7. The jig for processing an end face of an optical glass rod according to claim 1 or 2, wherein: the side edges of the two end grinding discs (1) and the middle disc (2) are provided with second threaded holes (13) for propping the L-shaped clamping plates (5).

8. The fixture for processing an end surface of an optical glass rod according to claim 7, wherein: both the two end grinding discs (1) and the middle disc (2) are cylindrical, and the second threaded holes (13) are formed in the side cylindrical surfaces of the two end grinding discs (1) and the middle disc (2).

9. The jig for processing an end face of an optical glass rod according to claim 1 or 2, wherein: the L-shaped clamping plate (5) is provided with a chute (51) capable of adjusting the upper and lower positions of the screws.

10. The jig for processing an end face of an optical glass rod according to claim 1 or 2, wherein: the through hole (7) is a rectangular hole.

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