A polishing fixture for optical crystal upper plate

Abstract

The utility model provides a polishing fixture for an optical crystal upper disk. A reference plate has a straight reference plane; a plurality of sleeve through holes are arranged along the disk surface; the external shape of the main body of the workpiece block matches the shape of the sleeve through holes, so that the workpiece block can be installed at the sleeve through holes; a glass gasket is arranged on the surface of the main body facing the reference plate; a lower flange is connected to the sleeve, and a plurality of lower flange through holes are arranged thereon; an upper flange is arranged at intervals from the lower flange and connected to the lower flange, and a plurality of upper flange through holes are arranged thereon; a fixing component is arranged on the upper flange; a fixing component is correspondingly arranged at each through hole of the upper flange, and the shaft of the workpiece block can pass through the lower flange through hole and the upper flange through hole, and be fixed by the fixing component. The polishing fixture has high flexibility, is convenient for fixing the polished crystal, can adapt to workpieces of different thicknesses, and can simultaneously mount and polish workpieces of different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of optical processing, in particular to a polishing fixture for an optical crystal upper plate. Background Art

[0002] In order to obtain better flatness and parallelism, some optical crystals must be coated with a certain optical resin disc as a reference and then polished. However, different crystals to be polished have different thicknesses, so before coating, the size of the crystals to be polished needs to be processed and classified. Crystals to be polished with different thicknesses cannot be coated with optical resin at the same time, resulting in low processing efficiency. For this reason, a polishing fixture that can adapt to crystals of different thicknesses to be polished and can perform coating polishing at the same time is needed.

[0003] At present, the use of polishing fixtures to polish optical crystals is a precise polishing method that can polish large quantities of crystals at the same time. However, the size requirements for the polished crystals are relatively strict. First, the thickness of the polished crystals must be consistent before the polishing can be performed simultaneously. If the number of crystals of the same size to be polished is not enough to form a plate, it is necessary to find crystals of the same thickness to match the plate, which is less flexible. Utility Model Content

[0004] The utility model aims to provide an optical crystal upper plate polishing fixture to solve the upper plate problem of crystals to be polished with different thicknesses.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An optical crystal upper plate polishing fixture, comprising:

[0007] A reference plate having a straight reference plane;

[0008] Sleeve disc: a plurality of sleeve disc through holes are arranged along the disc surface, which can be arranged on the reference plane of the reference plate, and a sleeve disc center hole is provided at the center of the disc surface;

[0009] The workpiece block comprises a main body and a shaft portion integrated with the main body, wherein the outer shape of the main body matches the shape of the through hole of the sleeve disc so that the workpiece block can be installed at the through hole of the sleeve disc; a glass gasket is provided on the surface of the main body facing the reference plate;

[0010] Lower flange: connected to the sleeve, with a plurality of lower flange through holes arranged thereon, each lower flange through hole corresponding to a sleeve through hole;

[0011] Upper flange: spaced apart from the lower flange and connected to the lower flange, with a plurality of upper flange through holes arranged thereon, each upper flange through hole corresponding to a lower flange through hole;

[0012] Fixed component: set on the upper flange;

[0013] A fixing assembly is correspondingly arranged at the through hole of each upper flange, and the shaft of the workpiece block can pass through the through hole of the lower flange and the through hole of the upper flange and be fixed by the fixing assembly.

[0014] In some embodiments of the present invention, the fixing assembly includes:

[0015] Mounting seat: Installed on the upper flange;

[0016] Fixed block: installed on the mounting seat, the fixed block is formed with a longitudinal fixing groove;

[0017] Fixed plate: connected to the fixed block by bolts;

[0018] After the shaft portion passes through the through hole of the upper flange, it is fixed between the fixing plate and the fixing block.

[0019] In some embodiments of the utility model, a fixing component mounting hole is provided on the upper flange, and the fixing seat is installed at the fixing component mounting hole, and the fixing component mounting hole is a long hole.

[0020] In some embodiments of the utility model, the mounting seat is L-shaped, including a first seat plate and a second seat plate, and a seat plate through hole is provided on the first seat plate, and the seat plate through hole is aligned with the upper flange through hole so that the shaft of the workpiece block can pass through the seat plate through hole.

[0021] In some embodiments of the present invention, the transverse cross-section of the fixing groove is V-shaped.

[0022] In some embodiments of the utility model, the sleeve plate, the lower flange plate and the upper flange plate are connected via a supporting shaft.

[0023] In some embodiments of the utility model, a bearing is installed at each through hole of the lower flange, and the bearing is located on the end surface facing the upper flange.

[0024] In some embodiments of the utility model, an annular gasket is further included, which can be arranged between the reference plane of the reference plate and the sleeve, and when the sleeve is arranged on the gasket, the through hole on the sleeve is located in the annular area of ​​the gasket.

[0025] In some embodiments of the present invention, the thickness of the gasket ring is less than the minimum thickness of the crystal to be polished.

[0026] In some embodiments of the present invention, the sleeve through hole is a polygonal through hole, and the main body of the workpiece block is a polygon matching the shape of the sleeve through hole.

[0027] Compared with the prior art, the technical advantages of the polishing fixture provided by the utility model are:

[0028] 1. The polishing fixture is highly flexible, which is convenient for fixing and adjusting the position of the polishing crystal. It can adapt to workpieces of different thicknesses and can simultaneously mount and polish workpieces of different thicknesses;

[0029] 2. The polishing fixture has high precision and does not rely on too many precision-machined parts. It can obtain a good benchmark by polishing the glass pad, and then polish the workpiece to meet high index requirements;

[0030] 3. The polishing fixture has high polishing efficiency, can load a large number of plates at one time, and can polish at the same time; the polishing fixture is easy to disassemble and assemble, and it is easier to replace and repair parts, saving time and effort, and is suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 It is a schematic diagram of the overall structure of the polishing fixture;

[0033] Figure 2 This is a schematic diagram of the base structure of the reference block;

[0034] Figure 3 is a schematic diagram of the reference block structure;

[0035] Figure 4 This is a schematic diagram of the installation status of the reference block and the reference block base;

[0036] Figure 5 It is the schematic diagram of the upper flange structure;

[0037] Figure 6 It is a schematic diagram of the lower flange structure;

[0038] Figure 7 Schematic diagram of the support shaft structure

[0039] Figure 8 It is a schematic diagram of the hexagonal block structure;

[0040] Fig. 9 This is a schematic diagram of the honeycomb disk structure.

[0041] 1-mounting seat, 101-seat plate through hole, 102-step hole, 103-adjusting piece mounting hole, 104-fixing piece mounting hole;

[0042] 2-fixed block, 201-first reference surface, 202-second reference surface, 203-adjusting member mounting hole, 204-fixed member mounting hole;

[0043] 3-Fixed plate;

[0044] 4- first bolt;

[0045] 5- second bolt;

[0046] 6-Adjusting bolt;

[0047] 7-upper flange, 701-upper flange center hole, 702-upper flange through hole, 703-fixing component installation hole, 704-positioning fixing hole;

[0048] 8-lower flange, 801-center hole of lower flange, 802-through hole of lower flange, 803-first positioning and fixing hole, 804-second positioning and fixing hole, 805-third positioning and fixing hole;

[0049] 9- third bolt connection pair;

[0050] 10-support shaft, 1001-step end, 1002-thread end;

[0051] 11- bearing;

[0052] 12-workpiece block, 1201-shaft portion, 1202-main body portion, 1203-glass gasket;

[0053] 13- fourth bolt;

[0054] 14- fifth bolt;

[0055] 15-sleeve disc, 1501-sleeve disc center hole, 1502-sleeve disc through hole, 1503-sleeve disc first threaded hole, 1504-sleeve disc second threaded hole;

[0056] 16- gasket;

[0057] 17- Reference plate. DETAILED DESCRIPTION

[0058] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0059] It should be noted that when an element is referred to as being "disposed on", "connected to", or "fixed to" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0060] The utility model provides an optical crystal plate polishing fixture, which is used for plate operation on a crystal to be polished, and is used for fixing and adjusting the crystal and polishing the crystal. Figure 1 In some exemplary embodiments of the present invention, the structure of the polishing fixture is as follows.

[0061] The reference plate 17 has a flat reference plane for controlling the protruding distance of the crystal to be polished.

[0062] The sleeve 15 is provided with a plurality of sleeve through holes 1502 along the surface of the sleeve, which can be arranged on the reference plane of the reference plate, and has a sleeve center hole 1501 at the center of the surface of the sleeve. The sleeve first threaded hole 1503 and the sleeve second threaded hole 1504 are also provided on the circumferential edge of the sleeve surface for fixing the sleeve 15 with other components.

[0063] The workpiece block 12 includes a main body 1202 and an axis 1201 integral with the main body 1202. The outer shape of the main body 1202 matches the shape of the sleeve through hole so that the workpiece block 12 can be installed at the sleeve through hole 1502. A glass gasket 1203 is provided on the surface of the main body 1202 facing the reference plate 17.

[0064] The sleeve 15 is used to fix the workpiece block 12. To facilitate fixation and prevent the workpiece block 12 from falling out of the sleeve through hole 1502, the sleeve through hole 1502 is a polygonal through hole, and the main body 1202 of the workpiece block is a polygon matching the shape of the sleeve through hole. In this embodiment, it is a regular hexagon.

[0065] The lower flange 8 is connected to the sleeve 15, and is provided with a plurality of lower flange through holes 802, each of which corresponds to a sleeve through hole 1502. The lower flange 8 also has a lower flange center hole 801 at its center, which is opposite to the sleeve center hole 1501.

[0066] The upper flange 7 is spaced apart from the lower flange 8 and connected to the lower flange, and is provided with a plurality of upper flange through holes 702, each of which corresponds to a lower flange through hole 802; there is also an upper flange center hole 701 in the center of the upper flange 7, which is opposite to the lower flange center hole 801 and the sleeve center hole 1501.

[0067] In order to solve the problem of fixing the upper flange 7, the lower flange 8 and the sleeve 15, a plurality of positioning and fixing holes 704 are provided on the circumferential edge of the upper flange 7, and a plurality of second positioning and fixing holes 804 are provided on the circumferential edge of the lower flange 8, and the three are connected by the support shaft 10. The third bolt 9 is used to fix the support shaft 10 on the side where the upper flange 7 passes through.

[0068] Reference for the mechanism of the support shaft 10 Figure 7 The two ends of the end of the shaft column body are respectively a stepped end 1001 and a threaded end 1002, wherein the threaded section 1002 is inserted into the second threaded hole 1504 of the sleeve. The first threaded hole 1503 of the sleeve is used to cooperate with the first positioning and fixing hole 803 of the lower flange, and the two are connected by the fifth bolt 14, so as to solve the problem of fixing between the sleeve 15 and the lower flange 8.

[0069] The fixing assembly is arranged on the upper flange 7 and is used for fixing the workpiece to be polished.

[0070] A fixing assembly is correspondingly disposed at each upper flange through hole 702 , and the shaft portion 1201 of the workpiece block can pass through the lower flange through hole 802 and the upper flange through hole 702 and be fixed by the fixing assembly.

[0071] In some embodiments of the present invention, the specific implementation structure of the fixing assembly includes:

[0072] The mounting seat 1 is mounted on the upper flange 7; in this embodiment, the mounting seat 1 is L-shaped, including a first seat plate and a second seat plate, and a seat plate through hole 101 is provided on the first seat plate, and the seat plate through hole 101 is aligned with the upper flange through hole 702, so that the shaft portion 1201 of the workpiece block can pass through the seat plate through hole 101. Three stepped holes 102 are also provided on the first seat plate, and the stepped holes 102 are used to fix the mounting seat on the upper flange 7. Correspondingly, three corresponding fixing assembly mounting holes 703 are provided on the upper flange 7, and the fixing seat 1 is installed at the fixing assembly mounting hole 703, and the fixing assembly mounting hole 703 is a long hole, which is convenient for adjusting the position of the fixing seat 1. The mounting seat 1 and the upper flange 7 are fixed by the first bolt 4.

[0073] The above is a mounting structure of a mounting seat 1. In actual implementation, it is necessary to design multiple sets of mounting seat 1 structures corresponding to the number of through holes in the sleeve plate. The mounting structure of each mounting seat 1 is the same and will not be described in detail.

[0074] The fixing block 2 is mounted on the mounting seat 1, and a longitudinal fixing groove is formed on the fixing block 2, and the longitudinal fixing groove is perpendicular to the disk surface of the upper flange 7. In this embodiment, a first reference surface 201 and a second reference surface 202 are designed on the fixing block 2, and both reference surfaces are inclined surfaces to construct a V-shaped fixing groove, which can make it more convenient to fix the workpiece block.

[0075] In order to solve the problem of fixing between the fixing block 2 and the mounting seat 1, a fixing member mounting hole 104 is designed on the second seat plate of the mounting seat, and a fixing member mounting hole 204 is designed on the fixing block 2. The second bolt is passed through the corresponding fixing member mounting holes 104 and 204 to fix the fixing block 2 and the mounting seat 1.

[0076] The fixing plate 3 is connected to the fixing block 2 by bolts; the fixing plate 3 is designed to be movable so that it can adapt to workpiece blocks 12 of various sizes. Specifically, an adjustment member mounting hole 103 is designed on the second seat plate, and an adjustment member mounting hole 203 is designed on the fixing block. The adjustment bolt 6 passes through the two fixing member mounting holes and is connected to the fixing plate 3. By rotating the adjustment bolt 6, the position of the fixing plate 3 relative to the fixing block 2 can be adjusted.

[0077] After the shaft 1201 passes through the through hole of the upper flange, it is fixed between the fixing plate 3 and the fixing block 2. Since the position of the fixing plate 3 is adjustable, it can adapt to shaft 1201 workpieces of various sizes.

[0078] In some embodiments of the utility model, a bearing 11 is installed at each lower flange through hole 802, and the bearing 11 is located on the end surface facing the upper flange 7. In order to solve the problem of bearing installation, a plurality of third positioning and fixing holes 805 are provided on the lower flange, and the fourth bolts 13 cooperate with the third positioning and fixing holes 805 to complete the fixing of the bearing 11 and the lower flange 8.

[0079] In some embodiments of the present invention, an annular backing ring 16 is further included, which can be arranged between the reference plane of the reference plate 17 and the sleeve 15, and when the sleeve 15 is arranged on the backing ring 16, the through hole on the sleeve 15 is located in the annular region of the backing ring 16. The thickness of the backing ring 16 is less than the minimum thickness of the crystal to be polished.

[0080] Before polishing the crystal, first place the polishing fixture on the reference plate 17, place the backing ring 16 in the middle, control the extension of the workpiece block 12, make the extension of the glass pad 1203 of each workpiece block 12 consistent with the bottom of the sleeve 15, then tighten the adjustment bolt 6 of each clamping device, so that the clamping device clamps the shaft 1201 of the workpiece block 12. Polishing is performed, and the glass pad 1203 with good polishing index is used as a reference to light glue the crystal to be polished.

[0081] Loosen the adjusting bolt 6 of each clamping device to make the clamping device loosen the shaft 1201 of the workpiece block 12, and place the polishing fixture above the reference plate 17 again, with the gasket 16 in the middle, to control the extension of the crystal so that the extension of the crystal relative to the bottom of the sleeve 15 is consistent, and then tighten the adjusting bolt 6 of each clamping device to make the clamping device clamp the upper end shaft 1201 of the hexagonal block 12.

[0082] Start polishing work.

[0083] After this surface is polished, the crystal is turned over and the other surface is polished. During this process, there is no need to polish the glass pad 1203.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical crystal upper plate polishing fixture, characterized in that: include: A reference plate having a straight reference plane; Sleeve plate: a plurality of sleeve plate through holes are arranged along the plate surface, and can be arranged on the reference plane of the reference plate; The workpiece block comprises a main body and a shaft integral with the main body, wherein the external shape of the main body matches the shape of the through hole of the sleeve disc so that the workpiece block can be installed at the through hole of the sleeve disc; a glass gasket is provided on the surface of the main body facing the reference plate; Lower flange: connected to the sleeve, with a plurality of lower flange through holes arranged thereon, each lower flange through hole corresponding to a sleeve through hole; Upper flange: spaced apart from the lower flange and connected to the lower flange, with a plurality of upper flange through holes arranged thereon, each upper flange through hole corresponding to a lower flange through hole; Fixed component: set on the upper flange; A fixing assembly is correspondingly arranged at the through hole of each upper flange, and the shaft of the workpiece block can pass through the through hole of the lower flange and the through hole of the upper flange and be fixed by the fixing assembly.

2. The optical crystal upper plate polishing fixture as claimed in claim 1, characterized in that: The fixing assembly comprises: Mounting seat: Installed on the upper flange; Fixed block: installed on the mounting seat, the fixed block is formed with a longitudinal fixing groove; Fixed plate: connected to the fixed block by bolts; After the shaft portion passes through the through hole of the upper flange, it is fixed between the fixing plate and the fixing block.

3. The optical crystal upper plate polishing fixture as claimed in claim 2, characterized in that: The upper flange is provided with a fixing assembly mounting hole, the fixing seat is mounted at the fixing assembly mounting hole, and the fixing assembly mounting hole is a long hole.

4. The optical crystal upper plate polishing fixture as claimed in claim 2 or 3, characterized in that: The mounting seat is L-shaped and includes a first seat plate and a second seat plate. The first seat plate is provided with a seat plate through hole, and the seat plate through hole is aligned with the upper flange through hole so that the shaft of the workpiece block can pass through the seat plate through hole.

5. The optical crystal upper plate polishing fixture as claimed in claim 2, characterized in that: The transverse cross section of the fixing groove is V-shaped.

6. The optical crystal upper plate polishing fixture as claimed in claim 1, characterized in that: The sleeve plate, the lower flange plate and the upper flange plate are connected via a supporting shaft.

7. The optical crystal upper plate polishing fixture according to claim 1, characterized in that: A bearing is installed at each through hole of the lower flange, and the bearing is located on the end surface facing the upper flange.

8. The optical crystal upper plate polishing fixture as claimed in claim 1, characterized in that: It further comprises an annular gasket ring, which can be arranged between the reference plane of the reference plate and the sleeve disc, and when the sleeve disc is arranged on the gasket ring, the through hole on the sleeve disc is located in the annular area of ​​the gasket ring.

9. The optical crystal upper plate polishing fixture as claimed in claim 8, characterized in that: The thickness of the backing ring is smaller than the minimum thickness of the crystal to be polished.

10. The optical crystal upper plate polishing fixture according to claim 1, characterized in that: The sleeve through hole is a polygonal through hole, and the main body of the workpiece block is a polygon matching the shape of the sleeve through hole.

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