Glue binding device and method for large-diameter plane optical flat

Abstract

The invention provides a cementing device and method for a large-caliber plane optical flat, and belongs to the technical field of optical precision machinery. The adhesive binding device for the large-caliber plane optical flat comprises an annular mirror frame, the inner diameter of the mirror frame is larger than the radial outer diameter of the plane optical flat to be detected, the plane optical flat is sleeved with the mirror frame, the mirror frame and the plane optical flat are located on the same plane and share the same circle center, and a gap between the mirror frame and the plane optical flat is filled with glue; the number of the supporting assemblies is at least three, the supporting assemblies are evenly distributed around the mirror frame by a circle, the supporting assemblies penetrate through the wall face of the mirror frame in the radial direction of the mirror frame and abut against the radial periphery of the plane optical flat, and the multiple supporting assemblies are matched together to clamp and fix the plane optical flat. According to the invention, the large-aperture optical flat and the mirror frame are adhered and fixed by using an adhering method, so that the influence of gravity on the plane surface shape is reduced; through the supporting assembly penetrating through the lens frame and abutting against the optical flat, self-shaking caused by suspension of the optical flat is avoided, fixed assembly of the large-diameter optical flat is achieved, and follow-up surface shape measurement is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of optical precision machinery technology, specifically relating to a bonding device and method for large-aperture planar flat crystals. Background Technology

[0002] Planar optical flats (hereinafter referred to as optical flats) are one of the common optical components. There is a wedge angle between the front and back surfaces of an optical flat, which is usually circular in diameter. A cross-sectional diagram of the optical flat is shown in Figure 5. Figure 5 This is a cross-sectional schematic diagram of a current planar optical flat. It is widely used in engineering applications, such as designing illumination optical systems, designing imaging optical systems, and inspecting the surface shape of optical components. There are many different aperture sizes for optical flats used in engineering applications, with large-aperture flats often accompanied by large masses. When assembling or using large-aperture optical flats, gravity will change their surface morphology, which will directly affect their performance in the optical system. Therefore, some assembly methods are needed to cope with the surface shape changes caused by gravity in large-aperture optical flats.

[0003] Existing technical solutions include sling suspension and using nylon pads in the frame to fix the flat crystal. Figure 6 This is a schematic diagram illustrating the current technology of sling suspension and using nylon pads in the eyeglass frame to fix the flat optical disc. For example... Figure 6 As shown, existing methods can cause uneven stress on the upper and lower parts of large-diameter flat crystals, and the surface morphology can be affected by gravity.

[0004] Therefore, there is an urgent need for a new adhesive bonding device and method for large-diameter planar flat crystals to make the force more uniform and the deformation smaller when fixing large-diameter flat crystals, thereby reducing the impact on the surface morphology. Summary of the Invention

[0005] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a binding device and method for large-diameter planar flat crystals.

[0006] This invention provides a gluing device for a large-diameter planar optical disc, characterized by comprising: an annular frame, the inner diameter of which is larger than the radial outer diameter of the planar optical disc to be measured, the frame fitting the planar optical disc and both being on the same plane and sharing the same center, the gap between the frame and the planar optical disc being filled with glue; and support components, the number of which is at least 3, evenly distributed around the frame, the support components passing through the wall of the frame radially and abutting against the radial outer periphery of the planar optical disc, the support components working together to clamp the planar optical disc.

[0007] The large-diameter planar optical flat glossing device provided by the present invention may also have the following features: the large-diameter planar optical flat glossing device further includes handles, the number of handles being 2, which are respectively protruding from the outer periphery of the frame at both ends. The handles are used for the operator to grip and rotate the entire large-diameter planar optical flat glossing device.

[0008] The adhesive bonding device for large-diameter flat crystal provided by the present invention may also have the following features: the adhesive bonding device for large-diameter flat crystal further includes two annular baffles, which are respectively disposed on the two sides of the frame to block the glue filling between the frame and the flat crystal, thereby preventing foreign objects from adhering to the glue.

[0009] The large-diameter planar flat glass binding device provided by the present invention may also have the following feature: wherein the radial outer diameter of the circular baffle is not less than the outer diameter of the frame, and the radial inner diameter of the circular baffle is equal to the inner diameter of the planar flat glass.

[0010] The large-diameter planar optical disc mounting device provided by the present invention may also have the following features: at least three holes are uniformly perforated along the radial circumference of the frame; the support assembly includes: an internally threaded metal tube, which is a T-shaped tube, with the internally threaded metal tube corresponding to and fitting into the holes; the internally threaded metal tube is fixed to the frame by screws passing through its "T"-shaped top and the frame wall; the internally threaded metal tube has a through internally threaded hole along its axial direction; and a threaded rod, which matches the internally threaded hole; the threaded rod passes through the internally threaded hole and directly or indirectly abuts against the radial outer circumference of the planar optical disc.

[0011] The adhesive bonding device for large-diameter planar flat crystals provided by the present invention may also have the following features: the support component further includes a support block, which is disposed at one end of the threaded rod near the planar flat crystal. The support block is used to abut against the radial circumference of the planar flat crystal. The curvature of the side of the support block that abuts against the planar flat crystal matches the circumferential curvature of the planar flat crystal to be measured. A soft pad is also provided on the side of the support block that abuts against the planar flat crystal to prevent deformation of the planar flat crystal caused by direct contact with the rigid body.

[0012] The large-diameter planar optical disc mounting device provided by the present invention may also have the following features: the threaded rod has a first groove recessed at the end near the planar optical disc, the bottom of the first groove is cylindrical and a spring is embedded therein, the end of the first groove is a wide-mouthed conical shape, the support block has a second groove recessed on the side away from the planar optical disc, the support assembly also includes a connector, the connector is a small metal ball, when the support assembly passes through the frame wall and abuts against the planar optical disc, the connector is located between the threaded rod and the support block, and its two ends are respectively embedded in the first groove and the second groove, and are pressed by the elastic force of the spring.

[0013] The large-diameter planar optical disc mounting device provided by the present invention may also have the following feature: the glue filling the gap between the frame and the planar optical disc is arranged in an arc shape that is wider on both sides and narrower in the middle with uniform intervals, and the support component does not pass through the glue.

[0014] This invention provides a method for gluing large-diameter planar optical discs, characterized by using a gluing device for large-diameter planar optical discs according to any of the preceding claims, comprising the following steps: S10, fixing the lens frame and the planar optical disc to be tested onto a circular mold; S20, injecting glue into the mold and removing the mold after it has solidified; S30, inserting several support components through the lens frame and abutting against the radial outer periphery of the planar optical disc fitted on the lens frame, thereby clamping the planar optical disc; S40, setting a circular baffle on each side of the lens frame and the planar optical disc to be tested to prevent external foreign objects from adhering to the glue.

[0015] The adhesive bonding method for large-diameter planar optical discs provided by this invention may also have the following features: the outer diameter of the mold is the same as the inner diameter of the frame, and the inner diameter of the mold is the same as the outer diameter of the planar optical disc.

[0016] The role and effect of invention

[0017] According to the present invention, a bonding apparatus and method for large-diameter planar optical discs is provided. The bonding apparatus includes: an annular frame, the inner diameter of which is larger than the radial outer diameter of the planar optical disc to be tested; the frame fits over the planar optical disc, and both are on the same plane and share the same center; the gap between the frame and the planar optical disc is filled with adhesive; and support components, at least three of which are evenly distributed around the frame, the support components passing radially through the frame's wall and abutting against the radial outer periphery of the planar optical disc; the support components cooperate to clamp the planar optical disc. The bonding method utilizes the above-described bonding apparatus.

[0018] Therefore, this invention uses an adhesive method to bond and fix the large-diameter optical flat to the frame, reducing the influence of gravity on the surface shape of the optical flat; and on this basis, by passing through the frame and supporting the optical flat, the wobbling caused by the optical flat being suspended is avoided, thus realizing the fixed assembly of the large-diameter optical flat and facilitating subsequent surface shape measurement. Attached Figure Description

[0019] Figure 1 This is a top view of a large-diameter planar flat film bonding apparatus according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the annular baffle of the adhesive bonding device for large-diameter planar flat crystal according to an embodiment of the present invention;

[0021] Figure 3This is a top cross-sectional view of the support component in the adhesive bonding device for large-diameter planar flat crystals according to an embodiment of the present invention.

[0022] Figure 4 This is a flowchart of a method for bonding large-diameter planar flat crystals according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the cross-section of a current planar flat crystal;

[0024] Figure 6 This is a schematic diagram of the existing technology for suspending the lens with a strap and fixing the flat crystal with a nylon pad in the frame. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments, in conjunction with the accompanying drawings, specifically illustrate a binding device and method for large-diameter planar flat crystals according to the present invention.

[0026] <Example>

[0027] Figure 1 This is a top view of a large-diameter planar flat film bonding device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the annular baffle of the adhesive bonding device for large-diameter planar flat crystals according to an embodiment of the present invention.

[0028] like Figure 1 and 2 As shown, the present invention provides a gluing device 100 for gluing and fixing a large-diameter planar flat crystal A, which includes an annular frame 10, a support component 20, an annular baffle 30, and a handle 40.

[0029] The radial inner diameter of the frame 10 is larger than the radial diameter of the flat crystal A to be measured. The frame 10 fixes the flat crystal A in a radially coplanar manner using glue B, and the two are concentric.

[0030] Among them, such as Figure 1 As shown, glue B is cast using a specific mold. The cast glue B presents an arc shape (similar to a concave lens) with evenly spaced edges that are wider at the sides and narrower in the middle.

[0031] The frame 10 has five holes evenly distributed along its radial circumference (not shown in the figure), with each pair of holes at a 72° angle to the next.

[0032] There are a total of 5 support components 20, which pass through the holes on the side wall of the frame 10 and abut against the flat optical disc A radially to fix the flat optical disc A. The support components 20 pass through the gaps in the adhesive B and do not directly contact the adhesive B.

[0033] Figure 3This is a top cross-sectional view of the support component in the adhesive bonding device for large-diameter planar flat crystals according to an embodiment of the present invention.

[0034] like Figure 3 As shown, the support assembly 20 includes an internally threaded metal tube 21, a threaded rod 22, a spring 23, a connector 24, and a support block 25.

[0035] The internally threaded metal tube 21 is a T-shaped tube, and there are 5 of them. The internally threaded metal tube 21 corresponds to and is fitted into the 5 holes one by one. The internally threaded metal tube 21 is fixed to the mirror frame 10 by screws 21a that pass through its "T"-shaped top and the wall of the mirror frame 10. The internally threaded metal tube 21 has a through internally threaded hole along its axial direction (not shown in the figure).

[0036] The threaded rod 22 is matched with the internal threaded hole and screwed through the internal threaded hole. The threaded rod 22 has a first groove 22a recessed at the end near the flat crystal A. The bottom of the first groove 22a is cylindrical and the end of the first groove 22a is a wide-mouthed conical shape.

[0037] Spring 23 is embedded in the cylindrical bottom of the first groove 22a.

[0038] The connector 24 is a small metal ball, one end of which is embedded in the wide conical end of the first groove 22a and is abutted by the spring 23 in the first groove 22a.

[0039] One end of the support block 25 has a recessed second groove 25a in the shape of a wide cone. The second groove 25a wraps around the other end of the connector 24, so that the two ends of the connector 24 are respectively held by the first groove 22a and the second groove 25a.

[0040] The other end of the support block 25 is used to abut against the plane flat crystal A to be tested. The curvature of this end matches the circumferential curvature of the plane flat crystal A to be tested, and a soft pad 25b is provided on it.

[0041] The support blocks 25 in the five support components 20 work together to clamp and fix the planar flat crystal A radially.

[0042] Two annular baffles 30 are respectively disposed on both sides of the frame 10 to block the adhesive B filling the space between the frame 10 and the flat lens A, thereby preventing external foreign objects from adhering to the adhesive B. The radial outer diameter of the annular baffle 30 is not less than the outer diameter of the frame 10, and the radial inner diameter of the annular baffle 30 is equal to the inner diameter of the flat lens A.

[0043] There are two handles 40, which are respectively protruding on the outer periphery of the frame 10. The handles 40 are used for the operator to grip and rotate the entire large-diameter flat optical lens mounting device 100.

[0044] Figure 4 This is a flowchart of a method for bonding large-diameter planar flat crystals according to an embodiment of the present invention.

[0045] like Figure 4 As shown, this embodiment also provides a method for bonding large-diameter planar flat crystals, which uses the bonding apparatus 100 for large-diameter planar flat crystals in this embodiment, and includes the following steps:

[0046] S10, fix the lens frame 10 and the flat optical disc A to be tested on the annular mold. The outer diameter of the mold is the same as the inner diameter of the lens frame 10, and the inner diameter of the mold is the same as the outer diameter of the flat optical disc A, so that the lens frame 10 and the flat optical disc A to be tested are coplanar and concentric in the radial direction.

[0047] S20, pour glue B into the mold and remove the mold after it solidifies.

[0048] The internal shape of the mold causes the glue B to appear as follows after injection. Figure 1 and 3 The shape of glue B in the picture.

[0049] S30, five support components 20 are passed through holes in the side wall of the frame 10 and abut against the radial outer periphery of the flat crystal A fitted on the frame 10 through the soft pad 25b on the support block 25, thereby clamping the flat crystal A.

[0050] S40, a circular baffle 30 is provided on both sides of the frame 10 and the flat optical disc A to be tested to prevent external foreign objects from adhering to the glue B.

[0051] The role and effect of the embodiments

[0052] According to the embodiment provided, a large-diameter planar optical disc mounting device includes: an annular frame, the inner diameter of which is larger than the radial outer diameter of the planar optical disc to be measured, the frame fitting the planar optical disc and both being on the same plane and sharing the same center, the gap between the frame and the planar optical disc being filled with glue; and support components, the number of which is at least 3, evenly distributed around the frame, the support components passing through the wall of the frame radially and abutting against the radial outer periphery of the planar optical disc, the support components working together to clamp the planar optical disc.

[0053] Therefore, the gluing device in this embodiment fixes the large-diameter optical flat to the frame with glue, reducing the influence of gravity on the surface shape of the optical flat; and on this basis, by passing through the frame and supporting the optical flat, the self-shaking caused by the optical flat being suspended is avoided, thus realizing the fixed assembly of the large-diameter optical flat and facilitating subsequent surface shape measurement.

[0054] Furthermore, the mounting device for the large-diameter planar optical disc also includes two handles, which are respectively protruding from the outer periphery of the frame at both ends. This arrangement facilitates gripping and rotating the entire mounting device for the large-diameter planar optical disc.

[0055] Furthermore, the adhesive mounting device for the large-diameter planar optical lens also includes two annular baffles, which are respectively disposed on both sides of the lens frame. The radial outer diameter of the annular baffle is not less than the outer diameter of the lens frame, and the radial inner diameter of the annular baffle is equal to the inner diameter of the planar optical lens. This arrangement can block the adhesive filling the space between the lens frame and the planar optical lens, thereby preventing external foreign objects from adhering to the adhesive.

[0056] Furthermore, at least three holes are evenly distributed along the radial circumference of the frame. The support components include: a T-shaped internally threaded metal tube, which corresponds to and is fitted into each hole; the internally threaded metal tube is fixed to the frame by screws passing through its T-shaped top and the frame wall; the internally threaded metal tube has a through internally threaded hole along its axial direction; and a threaded rod that matches the internally threaded hole, passing through the internally threaded hole to directly or indirectly abut against the radial outer circumference of the flat crystal. This arrangement allows the flat crystal to be fixed radially, avoiding the problem of easy shaking caused by the flat crystal being fixed only by glue. Moreover, the detachable cooperation of at least three support components can more evenly clamp and fix the flat crystal radially.

[0057] Furthermore, the support assembly also includes a support block disposed at one end of the threaded rod near the planar flat crystal. The support block abuts against the radial circumference of the planar flat crystal, and the curvature of the side of the support block that abuts against the planar flat crystal matches the circumferential curvature of the planar flat crystal to be measured. A soft pad is also provided on the side of the support block that abuts against the planar flat crystal. This arrangement allows the support block to conform to the radial circumference of the planar flat crystal, and the soft pad prevents deformation of the planar flat crystal caused by direct contact with the rigid body.

[0058] Furthermore, the threaded rod has a first groove recessed at its end near the planar optical disc. The bottom of the first groove is cylindrical and contains a spring, while the end of the first groove is a wide-mouthed cone. The support block has a second groove, also wide-mouthed and conical, recessed on the side facing away from the planar optical disc. The support assembly also includes a connector, which is a small metal ball. When the support assembly passes through the frame wall and abuts against the planar optical disc, the connector is located between the threaded rod and the support block, with its two ends embedded in the first and second grooves respectively, and is pressed together by the spring force. This design makes the connection between the support block and the threaded rod more flexible, better adapting to the radial circumference of the planar optical disc, and further reducing the stress impact on the planar optical disc.

[0059] Furthermore, the adhesive filling the gap between the frame and the flat crystal is arranged in a uniformly spaced arc shape, wider at the sides and narrower in the middle, with no adhesive penetrating the support components. This design reduces the stress impact of the adhesive on the flat crystal.

[0060] According to the adhesive bonding method for a large-diameter planar optical disc provided in this embodiment, the adhesive bonding device for a large-diameter planar optical disc of any of the aforementioned methods is used, as it includes the following steps: S10, fixing the lens frame and the planar optical disc to be tested on a circular mold; S20, pouring glue into the mold and removing the mold after it solidifies; S30, inserting several support components through the lens frame and abutting against the radial outer periphery of the planar optical disc fitted on the lens frame, thereby clamping the planar optical disc; S40, setting a circular baffle on each side of the lens frame and the planar optical disc to be tested to prevent external foreign objects from adhering to the glue.

[0061] Therefore, the gluing method for large-diameter planar flat crystals in this embodiment uses a gluing device for large-diameter planar flat crystals to fix the planar flat crystals, reducing the influence of gravity on the surface shape of the flat crystals and avoiding the self-shaking caused by the flat crystals being suspended in the air.

[0062] Furthermore, the outer diameter of the mold is the same as the inner diameter of the frame, and the inner diameter of the mold is the same as the outer diameter of the flat crystal. This arrangement ensures that the glued flat crystal is fitted by the frame, and that both are coplanar and share the same center.

[0063] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A binding device for large-diameter planar flat crystals, characterized in that, include: A circular frame, the inner diameter of which is larger than the radial outer diameter of the planar optical disc to be measured, the frame fitting the planar optical disc so that both are on the same plane and share the same center, and the gap between the frame and the planar optical disc is filled with glue; and The support components, numbering at least three, are evenly distributed around the frame. The support components pass through the wall of the frame radially and abut against the radial outer periphery of the flat crystal. The support components work together to clamp the flat crystal.

2. The adhesive binding device for large-diameter planar flat crystals according to claim 1, characterized in that: in, The adhesive bonding device for large-diameter planar flat crystals also includes a handle. The number of handles is two, each protruding from both ends of the outer periphery of the frame. The handle is used by the operator to grip and rotate the entire large-diameter planar optical flat mounting device.

3. The adhesive binding device for large-diameter planar flat crystals according to claim 1, characterized in that: in, The adhesive bonding device for the large-diameter planar flat crystal also includes two annular baffles. Two circular baffles are respectively disposed on the two sides of the frame to block the adhesive filling the space between the frame and the flat crystal, thereby preventing foreign objects from adhering to the adhesive.

4. The adhesive binding device for large-diameter planar flat crystals according to claim 3, characterized in that: in, The radial outer diameter of the annular baffle is not less than the outer diameter of the mirror frame. The radial inner diameter of the annular baffle is equal to the inner diameter of the planar flat crystal.

5. The adhesive binding device for large-diameter planar flat crystals according to claim 1, characterized in that: in, The frame is provided with at least three holes evenly spaced along its radial circumference. The support components include: The internally threaded metal tube is a T-shaped tube, and each internally threaded metal tube corresponds to and is fitted into one of the holes. The internally threaded metal tube is fixed to the frame by screws passing through its T-shaped top and the frame wall. The internally threaded metal tube has a through-hole along its axial direction. A threaded rod, which matches the internal threaded hole, passes through the internal threaded hole and thus directly or indirectly abuts against the radial outer periphery of the planar flat crystal.

6. The adhesive binding apparatus for large-diameter planar flat crystals according to claim 5, characterized in that: in, The support component also includes a support block. The support block is disposed at one end of the threaded rod near the planar flat crystal, and the support block is used to abut against the radial circumference of the planar flat crystal. The curvature of the side of the support block that abuts against the planar flat crystal matches the circumferential curvature of the planar flat crystal to be measured. A soft pad is also provided on the side of the support block that abuts against the planar crystal to prevent the planar crystal from deforming due to direct contact with the rigid body.

7. The adhesive binding apparatus for large-diameter planar flat crystals according to claim 6, characterized in that: in, The threaded rod has a first groove recessed at its end near the planar flat crystal. The bottom of the first groove is cylindrical and a spring is embedded therein. The end of the first groove is a wide-mouthed conical shape. The support block has a second groove in the shape of a wide-mouthed cone on the side opposite to the planar flat crystal. The support assembly also includes a connector, which is a small metal ball. When the support assembly passes through the frame wall and abuts against the flat crystal, the connector is located between the threaded rod and the support block, and its two ends are respectively embedded in the first groove and the second groove, and are pressed by the elastic force of the spring.

8. The adhesive binding device for large-diameter planar flat crystals according to claim 1, characterized in that: in, The glue filling the gap between the frame and the flat crystal is arranged in an arc shape that is wider at the sides and narrower in the middle, with even intervals. The support component does not pass through the adhesive.

9. A method for binding large-diameter planar flat crystals, characterized in that, The adhesive binding apparatus using the large-diameter planar flat film as described in any one of claims 1 to 8 includes the following steps: S10, fix the frame and the flat crystal to be tested onto the annular mold; S20, pour glue into the mold and remove the mold after it has solidified; S30, a plurality of the aforementioned support components are passed through the frame and abutted against the radial outer periphery of the planar flat crystal on which the frame is fitted, thereby clamping the planar flat crystal. S40, a circular baffle is provided on both sides of the lens frame and the flat crystal to be tested to prevent external foreign objects from adhering to the adhesive.

10. A method for binding large-diameter planar flat crystals, characterized in that: in, The outer diameter of the mold is the same as the inner diameter of the mirror frame. The inner diameter of the mold is the same as the outer diameter of the planar flat crystal.

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