High-precision surface grinding device for optical glass

Abstract

The utility model discloses an optical glass high-precision surface grinding device which comprises a surface grinding machine body, and a placing frame is fixed on the surface grinding machine body. The placing frame comprises a bottom plate, a supporting frame and a fixing plate, the fixing plate is fixed to the supporting frame, and profiling placing holes are formed in the fixing plate; a first flour milling mechanism is mounted at the bottom of the flour milling machine body and comprises a first flour milling motor and a first flour milling disc; a top plate is supported on the flour milling machine body, a lifting mechanism is fixed on the top plate, a second flour milling mechanism is arranged below the lifting mechanism, and the second flour milling mechanism comprises a second flour milling motor and a second flour milling disc; according to the surface grinding device, the second surface grinding disc is used for grinding the upper surface of the glass blank, meanwhile, the first surface grinding disc is used for grinding the lower surface of the glass blank, double-surface grinding can be conducted at the same time, and the grinding efficiency is improved; during grinding, negative pressure can be generated in the cavity of the placing frame, and negative pressure can also be generated at the grinding position, so that generated dust is sucked away, dust splashing to the external environment during grinding is reduced, and cooling is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical glass processing, and in particular relates to a high-precision surface grinding device for optical glass. Background Art

[0002] Optical glass provides clear transparency and excellent optical properties, ensuring that devices can accurately sense, transmit and record light. Optical glass can be widely used in various optical devices, such as telescopes, microscopes, cameras and mobile phones.

[0003] Since optical glass needs to have sufficient flatness, it needs to be polished when processing it. Since optical glass needs to be polished on both the upper and lower surfaces, the current polishing device can generally only polish one side, which is inefficient. Moreover, the surface of the optical glass will generate a high temperature during polishing, which is not conducive to rapid cooling for the next processing step. Utility Model Content

[0004] The utility model provides a high-precision grinding device for optical glass. The upper surface of a glass blank is ground by a second grinding disk, and the lower surface of the glass blank is ground by a first grinding disk at the same time. Double-sided grinding can be performed at the same time, thereby improving the grinding efficiency. During grinding, negative pressure can be generated in the cavity of a placement rack, and negative pressure can also be generated at the grinding location, thereby sucking away the generated dust, reducing the dust splashing into the external environment during grinding, and facilitating cooling, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optical glass high-precision grinding device, comprising a grinding machine body, a placement frame fixed on the top surface of the grinding machine body; the placement frame comprises a bottom plate, a support frame and a fixing plate, the support frame is located on the bottom plate and is arranged around a circle, a circle of placement grooves is arranged on the inner side of the top surface of the support frame, the fixing plate is tightly placed in the placement groove, the fixing plate and the four corners of the placement groove are correspondingly provided with screw holes and are fixedly connected by screws, and the fixing plate is provided with a plurality of contoured placement holes that pass through the upper and lower sides thereof; the grinding A first grinding mechanism is installed at the bottom of the grinding machine body, and the first grinding mechanism includes a first grinding motor. The output shaft of the first grinding motor passes through the grinding machine body and the bottom plate, and a first grinding disk located in the support frame is fixed thereto, and the first grinding disk covers all the contour placement holes. The top surface of the grinding machine body is fixedly supported by a top plate through a column, and a lifting mechanism is fixed on the top plate. A second grinding mechanism is installed below the lifting mechanism, and the second grinding mechanism includes a second grinding motor and a second grinding disk, and the second grinding disk covers all the contour placement holes.

[0006] Preferably, the bottom plate is provided with an extended edge, the four corners of the extended edge are provided with screw holes, and the extended edge is fixedly connected to the grinding machine body by fastening screws.

[0007] Preferably, a connecting pipe communicating with the inner cavity of the placement rack is provided on one side, and a plurality of ventilation holes penetrating the upper and lower sides thereof are provided on the fixing plate.

[0008] Preferably, the lifting mechanism comprises a telescopic cylinder fixed on the top plate, the piston rod of the telescopic cylinder passes through the top plate and is fixed with a connecting plate, and the second grinding motor is installed on the bottom surface of the connecting plate through a fixing frame.

[0009] Preferably, a guide rod is fixed to the top surface of the connecting plate, the top plate is provided with a hole for the guide rod to pass through, and is provided with a linear bearing slidably connected to the guide rod.

[0010] Preferably, the flour grinding machine body is supported by four supporting legs, and shock-absorbing pads are installed at the bottom ends of the supporting legs.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. When grinding, start the second grinding motor to drive the second grinding disk to rotate and grind the upper surface of the glass blank exposed on the top surface of the fixed plate. At the same time, start the first grinding motor to drive the first grinding disk to rotate and grind the lower surface of the glass blank. Both sides of the glass blank can be grinded at the same time to improve the grinding efficiency.

[0013] 2. During grinding, negative pressure can be generated in the cavity of the placement rack, and negative pressure can also be generated at the grinding position of the first grinding surface disk through the ventilation holes, so as to absorb the dust generated on the upper and lower sides of the glass blank, reduce the dust splashing into the external environment during grinding, and the upper and lower surfaces of the glass blank are conducive to cooling under the action of airflow during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the placement rack of the utility model from a top view;

[0017] Figure 4 It is a schematic diagram of the top view structure of the fixing plate of the utility model.

[0018] In the figure: 1. grinding machine body; 2. placement frame; 3. bottom plate; 4. support frame; 5. fixing plate; 6. placement slot; 7. contour placement hole; 8. first grinding motor; 9. first grinding disk; 10. column; 11. top plate; 12. second grinding motor; 13. second grinding disk; 14. extension edge; 15. screw hole; 16. connecting pipe; 17. ventilation hole; 18. telescopic cylinder; 19. connecting plate; 20. fixing frame; 21. guide rod; 22. linear bearing; 23. shock-absorbing pad. 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] See also Figure 1-4The utility model provides a high-precision surface grinding device for optical glass, comprising a surface grinding body 1, a placement frame 2 is fixed on the top surface of the surface grinding body 1; the placement frame 2 comprises a bottom plate 3, a support frame 4 and a fixed plate 5, the support frame 4 is located on the bottom plate 3 and is arranged around a circle, a circle of placement grooves 6 are arranged on the inner side of the top surface of the support frame 4, the fixed plate 5 is tightly placed in the placement groove 6, the fixed plate 5 and the placement groove 6 are provided with screw holes at four corners correspondingly and are fixedly connected by screws, and the fixed plate 5 is provided with a plurality of profiling placement holes 7 that pass through the upper and lower sides thereof; a first surface grinding mechanism is installed at the bottom of the surface grinding body 1, the first surface grinding mechanism comprises a first surface grinding motor 8, the output shaft of the first surface grinding motor 8 passes through the surface grinding body 1 and the bottom plate 3 and is fixed with a first surface grinding disc 9 located in the support frame 4, the first surface grinding disc 9 covers all the profiling placement holes 7; the top surface of the surface grinding body 1 is fixedly supported by a top plate 11 through a column 10, and a lifting plate 11 is fixed on the top plate 11 The lifting mechanism is provided with a second grinding mechanism below the lifting mechanism, and the second grinding mechanism includes a second grinding motor 12 and a second grinding disc 13, and the second grinding disc 13 covers all the profiling placement holes 7; when in use, the glass blanks to be ground are placed in each profiling placement hole 7, and since the profiling placement holes 7 are profiling structures, the side of the glass blank is limited to prevent it from rotating during grinding, and the thickness of the fixing plate 5 is set lower than the thickness of the glass blank, and the bottom end of the glass blank is closely attached to the first grinding hole 7. The top surface of the surface plate 9 and the top surface of the glass blank are higher than the top surface of the fixed plate 5; when grinding is required, the lifting mechanism is started to drive the second grinding motor 12 to descend, and the second grinding motor 12 drives the second grinding disk 13 to rotate to grind the upper surface of the glass blank exposed on the top surface of the fixed plate 5. At the same time, the first grinding motor 8 is started to drive the first grinding disk 9 to rotate to grind the lower surface of the glass blank, and the grinding direction of the second grinding disk 13 is opposite to that of the first grinding disk 9, so that both sides of the glass blank can be grinded at the same time, thereby improving the grinding efficiency.

[0021] Specifically, the base plate 3 is provided with an extension edge 14, the four corners of the extension edge 14 are provided with screw holes 15, and is fixedly connected to the grinding machine body 1 by fastening screws; in this embodiment, the detachable fastening screws are used to facilitate the detachable connection of the placement frame 2 on the grinding machine body 1.

[0022] Specifically, a connecting pipe 16 connected to the inner cavity of the placement rack 2 is provided on one side, and a plurality of ventilation holes 17 penetrating the upper and lower surfaces thereof are provided on the fixing plate 5; in the present embodiment, an external dust collection and treatment device is connected via the connecting pipe 16, so that during grinding, a negative pressure can be generated in the cavity of the placement rack 2, and a negative pressure can also be generated at the grinding location of the first grinding disk 9 through the ventilation holes 17, thereby sucking away the dust generated on the upper and lower surfaces of the glass blank, reducing the dust splashing into the external environment during grinding, and the upper and lower surfaces of the glass blank are conducive to cooling under the action of the airflow during grinding.

[0023] Specifically, the lifting mechanism includes a telescopic cylinder 18 fixed on the top plate 11, and a connecting plate 19 is fixed to the telescopic cylinder 18 after the piston rod passes through the top plate 11, and the second grinding motor 12 is installed on the bottom surface of the connecting plate 19 through a fixing frame 20; in this embodiment, the connecting plate 19 is driven to descend by the telescopic cylinder 18, which can further drive the fixing frame 20 and the second grinding motor 12 to descend, thereby adjusting the grinding height of the second grinding motor 12 and the second grinding disk 13.

[0024] Specifically, a guide rod 21 is fixed to the top surface of the connecting plate 19, the top plate 11 is provided with a hole for the guide rod 21 to pass through, and is equipped with a linear bearing 22 that is slidably connected to the guide rod 21; in this embodiment, through the cooperation of the guide rod 21 and the linear bearing 22, the stability of the second grinding motor 12 and the second grinding disk 13 during lifting and lowering is improved, and the stability during grinding is also improved.

[0025] Specifically, the grinding machine body 1 is supported by four supporting legs, and shock-absorbing feet 23 are installed at the bottom ends of the supporting legs. In this embodiment, the shock-absorbing feet 23 can reduce the vibration of the entire device during the grinding process, thereby improving the overall grinding accuracy.

[0026] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0027] Working principle: When in use, the glass blank to be ground is placed in each contour placement hole 7. Since the contour placement hole 7 is a contour structure, the side of the glass blank is limited to prevent it from rotating during grinding. The thickness of the fixed plate 5 is set lower than the thickness of the glass blank. The bottom end of the glass blank is tightly attached to the top surface of the first grinding disk 9, and the top surface of the glass blank is higher than the top surface of the fixed plate 5.

[0028] When grinding is required, the telescopic cylinder 18 is started to drive the connecting plate 19 to descend, and further drives the fixing frame 20 and the second grinding motor 12 to descend. The second grinding motor 12 drives the second grinding disc 13 to rotate to grind the upper surface of the glass blank exposed on the top surface of the fixing plate 5. At the same time, the first grinding motor 8 is started to drive the first grinding disc 9 to rotate to grind the lower surface of the glass blank. The grinding direction of the second grinding disc 13 is opposite to that of the first grinding disc 9, so that both sides of the glass blank can be grinded at the same time, thereby improving the grinding efficiency.

[0029] At the same time, by connecting to an external dust collection device through the connecting pipe 16, negative pressure can be generated in the cavity of the placement rack 2 during grinding, and negative pressure can also be generated at the grinding location of the first grinding disk 9 through the ventilation hole 17, thereby sucking away the dust generated on the upper and lower surfaces of the glass blank, reducing the dust splashing into the external environment during grinding, and the upper and lower surfaces of the glass blank are conducive to cooling under the action of airflow during grinding.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision optical glass grinding device, comprising a grinding machine body (1), characterized in that: A placement frame (2) is fixed on the top surface of the grinding machine body (1); the placement frame (2) comprises a bottom plate (3), a support frame (4) and a fixing plate (5); the support frame (4) is located on the bottom plate (3) and is arranged around the bottom plate (3); a circle of placement grooves (6) are arranged on the inner side of the top surface of the support frame (4); the fixing plate (5) is tightly placed in the placement groove (6); screw holes are correspondingly arranged at the four corners of the fixing plate (5) and the placement groove (6) are fixedly connected by screws; a plurality of contour placement holes (7) are arranged on the fixing plate (5) and pass through the upper and lower sides thereof; a first grinding mechanism is arranged at the bottom of the grinding machine body (1); the first grinding mechanism The invention comprises a first grinding motor (8), the output shaft of the first grinding motor (8) passes through the grinding machine body (1) and the bottom plate (3), and a first grinding disc (9) located in the support frame (4) is fixed thereto, and the first grinding disc (9) covers all the contour placement holes (7); the top surface of the grinding machine body (1) is fixedly supported by a top plate (11) through a column (10), a lifting mechanism is fixed on the top plate (11), and a second grinding mechanism is arranged below the lifting mechanism, and the second grinding mechanism comprises a second grinding motor (12) and a second grinding disc (13), and the second grinding disc (13) covers all the contour placement holes (7).

2. The optical glass high-precision grinding device according to claim 1, characterized in that: The bottom plate (3) is provided with an extended edge (14), and screw holes (15) are provided at four corners of the extended edge (14), and the extended edge (14) is fixedly connected to the grinding machine body (1) by fastening screws.

3. The optical glass high-precision grinding device according to claim 1, characterized in that: A connecting pipe (16) communicating with the inner cavity of the placement rack (2) is provided on one side thereof, and a plurality of ventilation holes (17) penetrating the upper and lower surfaces of the fixing plate (5) are provided on the fixing plate (5).

4. The optical glass high-precision grinding device according to claim 1, characterized in that: The lifting mechanism comprises a telescopic cylinder (18) fixed on the top plate (11), a piston rod of the telescopic cylinder (18) passing through the top plate (11) and then fixed with a connecting plate (19), and the second grinding motor (12) is mounted on the bottom surface of the connecting plate (19) via a fixing frame (20).

5. The optical glass high-precision grinding device according to claim 4, characterized in that: A guide rod (21) is fixed on the top surface of the connecting plate (19), and the top plate (11) is provided with a hole for the guide rod (21) to pass through, and is provided with a linear bearing (22) slidably connected to the guide rod (21).

6. The optical glass high-precision grinding device according to claim 1, characterized in that: The flour grinding machine body (1) is supported by four supporting legs, and shock-absorbing pads (23) are installed at the bottom ends of the supporting legs.

Images