Glue binding device for large-caliber plane optical flat

Abstract

The utility model provides a cementing device for a large-caliber planar optical flat, and belongs to the technical field of optical precision machinery. The cementing 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 glue is filled in a gap between the mirror frame and the plane optical flat; 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 utility model, the large-caliber flat crystal is adhered and fixed with the mirror frame through glue, so that the influence of gravity on the flat crystal 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] The utility model belongs to the technical field of optical precision machinery, and in particular relates to a gluing device for large-caliber flat crystals. Background Art

[0002] A flat crystal (hereinafter referred to as a flat crystal) is one of the common optical components. There is a wedge angle between the front and back surfaces of the flat crystal. It is usually a circular aperture. Its cross-sectional diagram is shown in Figure 4, where: Figure 4 This is a schematic cross-sectional view of a current flat crystal. Flat crystals are widely used in engineering applications, such as designing illumination optical systems, imaging optical systems, and detecting the surface shape of optical components. Flat crystals used in engineering applications come in a wide variety of sizes, and large-diameter flat crystals often carry significant weight. During assembly or use of large-diameter flat crystals, gravity can alter their surface topography, directly impacting their performance in optical systems. Therefore, assembly devices are required to mitigate these surface changes caused by gravity.

[0003] Existing technical solutions include sling suspension and the use of frame nylon pads to fix the flat crystal. Figure 5 This is a schematic diagram of the prior art when the sling is suspended and the frame nylon pad is used to fix the flat crystal. Figure 5 As shown, existing devices or technologies will cause uneven forces on the upper and lower parts of the large-diameter flat crystal, and the surface morphology will be affected by gravity.

[0004] Therefore, there is an urgent need for a new type of gluing device for large-diameter flat crystals, which can make the force applied to the large-diameter flat crystals more uniform and the deformation smaller when they are fixed, thereby reducing the impact on the surface morphology. Utility Model Content

[0005] The utility model is developed to solve the above problems and aims to provide a large-diameter flat crystal gluing device.

[0006] The utility model provides a gluing device for a large-diameter flat crystal, which has the following characteristics: a circular ring-shaped frame, the inner diameter of the frame is larger than the radial outer diameter of the flat crystal to be measured, the frame sleeves the flat crystal and the two are in the same plane and share the same center, and the gap between the frame and the flat crystal is filled with glue; and support components, the number of support components is at least 3, and they are evenly distributed around the frame. The support components pass through the wall surface of the frame in the radial direction and abut against the radial outer periphery of the flat crystal. The multiple support components cooperate to clamp the flat crystal.

[0007] The large-diameter flat crystal binding device provided by the present invention may also have the following features: wherein, the large-diameter flat crystal binding device also includes handles, and there are 2 handles, which are respectively protruded from the two ends of the outer periphery of the frame, and the handles are used for the operator to grasp and thereby rotate the entire large-diameter flat crystal binding device.

[0008] The large-diameter flat crystal binding device provided by the present invention may also have the following feature: the handle and the frame are integrally formed.

[0009] The large-diameter flat crystal gluing device provided by the present invention may also have the following features: wherein, the large-diameter flat crystal gluing device also includes two circular baffles, which are respectively arranged on the two sides of the frame to block the glue filled between the frame and the flat crystal, thereby preventing external foreign matter from adhering to the glue.

[0010] The large-diameter flat crystal binding device provided by the present invention may also have the following features: wherein 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 flat crystal.

[0011] The large-diameter flat crystal binding device provided by the present invention may also have the following features: wherein, at least three holes are evenly penetrated along the radial circumference of the frame, and the supporting assembly includes: an internally threaded metal tube, which is a T-shaped tube, and the internally threaded metal tube corresponds to the holes one by one and is matched and embedded therein, and the internally threaded metal tube is fixed to the frame by screws passing through its "T"-shaped top and the wall of the frame, and 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, and the threaded rod passes through the internally threaded hole so as to directly or indirectly abut against the radial outer circumference of the flat crystal.

[0012] The large-diameter flat crystal binding device provided by the present invention may also have the following features: wherein, the support assembly also includes a support block, which is arranged at one end of the threaded rod close to the flat crystal, and the support block is used to abut against the radial circumferential side of the flat crystal. The curvature of the side of the support block abutting against the flat crystal matches the curvature of the circumferential side of the flat crystal to be measured, and a soft pad is also provided on the side of the support block abutting against the flat crystal to prevent the flat crystal from being deformed due to direct contact of the rigid body.

[0013] The gluing device for large-diameter flat crystals provided by the present invention may also have the following features: the threaded rod is recessed with a first groove at the end close to the flat crystal, the bottom of the first groove is cylindrical and a spring is embedded therein, the end of the first groove is in the shape of a wide-mouthed cone, and the support block is recessed with a second groove in the shape of a wide-mouthed cone on the side facing away from the flat crystal. The support assembly also includes a connecting piece, which is a small metal ball. When the support assembly passes through the wall of the frame and abuts against the flat crystal, the connecting piece 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 tightened by the elastic force of the spring.

[0014] The large-diameter flat crystal binding device provided by the present invention may also have the following features: the glue filled in the gap between the frame and the flat crystal is evenly spaced and arranged in an arc shape with wide sides and narrow middle, and the support component does not pass through the glue.

[0015] The large-diameter flat crystal gluing device provided by the present invention may also have the following features: the shape of the glue is made by casting a mold of a set shape, the mold is a circular ring, 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.

[0016] Functions and effects of utility models

[0017] According to the gluing device for large-diameter flat crystals involved in the present invention, it includes: a circular ring-shaped frame, the inner diameter of the frame is larger than the radial outer diameter of the flat crystal to be measured, the frame sets the flat crystal and the two are in the same plane and share the same center, and the gap between the frame and the flat crystal is filled with glue; and a support assembly, the number of which is at least 3, evenly distributed around the frame, the support assembly passes through the wall of the frame along the radial direction and abuts against the radial outer periphery of the flat crystal, and the plurality of support assemblies cooperate to clamp the flat crystal. Therefore, the present invention adheres and fixes the large-diameter flat crystal to the frame, reducing the influence of gravity on the flat crystal's surface shape; and on this basis, by passing through the frame and abutting the flat crystal's support assembly, the self-swaying of the flat crystal caused by its suspension is avoided, thereby achieving fixed assembly of the large-diameter flat crystal and facilitating subsequent surface shape measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of a large-diameter flat wafer binding device according to an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of a circular baffle of a large-diameter flat wafer binding device according to an embodiment of the present invention;

[0020] Figure 3It is a schematic top cross-sectional view of a support assembly in a large-diameter flat wafer binding device according to an embodiment of the present invention;

[0021] Figure 4 is a schematic cross-sectional view of the current planar flat crystal;

[0022] Figure 5 It is a schematic diagram of the prior art when a sling is suspended and a frame nylon pad is used to fix a flat crystal. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the following embodiments and accompanying drawings specifically illustrate a large-diameter flat wafer gluing device of the present invention.

[0024] <Example>

[0025] Figure 1 This is a top view of a large-diameter flat wafer binding device according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a circular baffle of a large-diameter flat wafer binding device according to an embodiment of the present utility model.

[0026] like Figure 1 and 2 As shown, the present invention provides a large-caliber flat crystal gluing device 100 for gluing and fixing a flat crystal A, comprising a circular ring-shaped frame 10, a support assembly 20, a circular baffle 30 and a handle 40.

[0027] The radial inner diameter of the lens frame 10 is larger than the radial diameter of the plane flat crystal A to be measured. The lens frame 10 is fixed to the plane flat crystal A in the radial direction by glue B, and the two are co-centered.

[0028] Among them, such as Figure 1 As shown, the glue B is cast through a specific mold, and the cast glue B presents an arc shape (similar to a concave lens) with evenly spaced edges and a narrow middle.

[0029] The frame 10 has five holes (not shown) evenly distributed along its radial circumference, with the five holes forming an angle of 72° between any two adjacent holes.

[0030] There are five supporting components 20 in total, which pass through the holes on the side wall of the frame 10 and abut against the plane crystal A in the radial direction to fix the plane crystal A. The supporting components 20 pass through the gaps in the glue B and do not come into direct contact with the glue B.

[0031] Figure 3 It is a top cross-sectional schematic diagram of a support assembly in a large-diameter flat wafer binding device according to an embodiment of the present invention.

[0032] 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 .

[0033] The internally threaded metal tubes 21 are T-shaped tubes, and there are five of them. The internally threaded metal tubes 21 correspond one-to-one with the five holes and fit into them. The internally threaded metal tubes 21 are fixed to the frame 10 by screws 21a that pass through the top of the "T" shape and the wall of the frame 10. The internally threaded metal tubes 21 have internally threaded holes (not shown) running through them along their axial direction.

[0034] The threaded rod 22 matches the internal threaded hole and is screwed through the internal threaded hole. The threaded rod 22 has a first groove 22a 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 wide-mouthed conical.

[0035] The spring 23 is embedded in the cylindrical bottom of the first groove 22a.

[0036] The connecting member 24 is a small metal ball, one end of which is embedded in the wide-mouthed conical end of the first groove 22 a and is abutted by the spring 23 in the first groove 22 a.

[0037] A second conical groove 25a is recessed at one end of the support block 25 . The second groove 25a wraps the other end of the connector 24 , so that both ends of the connector 24 are clamped by the first groove 22a and the second groove 25a , respectively.

[0038] The other end of the support block 25 is used to abut against the planar crystal plate A to be measured. The curvature of this end matches the curvature of the peripheral side of the planar crystal plate A to be measured, and a soft pad 25b is provided on it.

[0039] The support blocks 25 in the five support assemblies 20 cooperate with each other to clamp and fix the flat wafer A in the radial direction.

[0040] Two annular baffles 30 are provided on either side of the frame 10 to shield the glue B between the frame 10 and the flat crystal A, thereby preventing foreign matter from adhering to the glue B. The radial outer diameter of the annular baffles 30 is no less than the outer diameter of the frame 10, and the radial inner diameter of the annular baffles 30 is equal to the inner diameter of the flat crystal A.

[0041] There are two handles 40 , which are respectively protruded from both ends of the outer periphery of the lens frame 10 . The handles 40 are used for an operator to grasp and thereby rotate the entire large-diameter flat crystal binding device 100 .

[0042] The process of using the large-diameter flat wafer binding device 100 is as follows:

[0043] S10, fixing the lens frame 10 and the planar wafer A to be tested on a circular 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 planar wafer A, so that the lens frame 10 and the planar wafer A to be tested are radially coplanar and cocentric.

[0044] S20, pouring glue B into the mold and removing the mold after it solidifies.

[0045] Among them, the internal shape of the mold makes it look like this after pouring glue B Figure 1 and 3 Glue the shape of B.

[0046] S30 , inserting the five support assemblies 20 through the holes on the sidewall of the frame 10 , and contacting the radial periphery of the planar crystal A mounted on the frame 10 through the cushions 25 b on the support blocks 25 , thereby clamping the planar crystal A.

[0047] S40 , a circular baffle 30 is respectively provided on both sides of the lens frame 10 and the flat wafer A to be tested to prevent external foreign matter from adhering to the glue B.

[0048] Functions and Effects of the Embodiments

[0049] According to the present embodiment, a gluing device for a large-diameter flat crystal is provided, which includes: a circular ring-shaped frame, the inner diameter of the frame is larger than the radial outer diameter of the flat crystal to be measured, the frame sleeves the flat crystal and the two are in the same plane and share the same center, and the gap between the frame and the flat crystal is filled with glue; and support components, the number of support components is at least 3, evenly distributed around the frame, the support components pass through the wall of the frame in the radial direction and abut against the radial outer periphery of the flat crystal, and several support components cooperate to clamp the flat crystal.

[0050] Therefore, the gluing device of this embodiment fixes the large-diameter flat crystal to the frame by gluing, reducing the influence of gravity on the surface shape of the flat crystal; and on this basis, by passing through the frame and supporting the support component of the flat crystal, the self-swaying of the flat crystal caused by being suspended in the air is avoided, thereby achieving fixed assembly of the large-diameter flat crystal and facilitating subsequent surface shape measurement.

[0051] Furthermore, the large-diameter flat crystal binding device further includes two handles, each of which is protruding from both ends of the outer periphery of the frame. This arrangement makes it easier for an operator to grasp and rotate the entire large-diameter flat crystal binding device.

[0052] Furthermore, the handle and the frame are integrally formed, so that the handle is more secure during operation.

[0053] Furthermore, the large-diameter flat lens binding device includes two circular baffles, one located on each side of the frame. The radial outer diameter of each baffle is no less than the outer diameter of the frame, and the radial inner diameter of each baffle is equal to the inner diameter of the flat lens. This arrangement shields the glue between the frame and the flat lens, preventing foreign matter from adhering to the glue.

[0054] Furthermore, the frame is uniformly perforated with at least three holes along its radial circumference. The support assembly includes: an internally threaded metal tube, which is a T-shaped tube. The internally threaded metal tube corresponds to and fits into the holes. The internally threaded metal tube is secured to the frame by screws passing through the top of the "T" shape and the wall of the frame. The internally threaded metal tube has an internally threaded hole extending axially therethrough; and a threaded rod, which matches the internally threaded hole and passes through the internally threaded hole to directly or indirectly abut the radial outer circumference of the planar crystal. This arrangement allows the planar crystal to be fixed in the radial direction, avoiding the problem of easy shaking caused by the planar crystal being fixed only by glue. Moreover, the at least three support assemblies can detachably work together to more uniformly clamp and secure the planar crystal in the radial direction.

[0055] Furthermore, the support assembly includes a support block, which is disposed at the end of the threaded rod proximal to the planar crystal. The support block is configured to abut the radial circumference of the planar crystal. The curvature of the side of the support block abutting the planar crystal matches the curvature of the circumference of the planar crystal to be measured. A soft pad is also provided on the side of the support block abutting the planar crystal. This arrangement allows the support block to conform to the radial circumference of the planar crystal, and the soft pad prevents deformation of the planar crystal caused by direct contact with a rigid body.

[0056] Furthermore, the threaded rod has a first recessed groove at its end near the flat crystal. The bottom of the first recess is cylindrical and contains a spring. The end of the first recess is in the shape of a wide cone. The support block has a second recessed groove in the shape of a wide cone on the side facing away from the flat crystal. The support assembly also includes a connector, which is a small metal ball. When the support assembly passes through the wall of the frame and abuts the flat crystal, the connector is located between the threaded rod and the support block, with its ends respectively embedded in the first and second recesses and compressed by the elastic force of the spring. This arrangement makes the connection between the support block and the threaded rod more flexible, allowing for better adaptation to the radial circumference of the flat crystal, further reducing the stress impact on the flat crystal.

[0057] Furthermore, the glue filling the gap between the frame and the flat crystal is evenly spaced and arranged in an arc shape with wide sides and narrow center, and the support component does not pass through the glue. This arrangement reduces the stress effect of the glue on the flat crystal.

[0058] Furthermore, the glue is formed by casting a predetermined mold. The mold is annular, and 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 allows the flat crystal to be nested within the frame after gluing, with the two being coplanar and cocentric.

[0059] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-diameter flat crystal binding device, characterized in that: include: A ring-shaped mirror frame, wherein the inner diameter of the mirror frame is larger than the radial outer diameter of the planar crystal to be measured, the mirror frame is provided with the planar crystal so that the two are in the same plane and have the same center, and the gap between the mirror frame and the planar crystal is filled with glue; and The supporting components are at least three in number and are evenly distributed around the frame. The supporting components pass through the wall of the frame in a radial direction and abut against the radial outer periphery of the planar crystal. Several of the supporting components cooperate to clamp the planar crystal.

2. The large-diameter flat wafer binding device according to claim 1, characterized in that: in, The large-diameter flat crystal binding device further includes a handle, There are two handles, which are respectively protruded from both ends of the outer periphery of the frame. The handle is used for an operator to grasp and thereby rotate the entire large-diameter flat crystal binding device.

3. The large-diameter flat wafer binding device according to claim 2, characterized in that: in, The handle and the mirror frame are designed to be integrally formed.

4. The large-diameter flat wafer binding device according to claim 1, characterized in that: in, The large-diameter flat crystal gluing device also includes two circular baffles. The two annular baffles are respectively arranged on the two sides of the frame, and are used to block the glue filled between the frame and the flat crystal, thereby preventing external foreign matter from adhering to the glue.

5. The large-diameter flat wafer binding device according to claim 4, 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 crystal.

6. The large-diameter flat wafer binding device according to claim 1, characterized in that: in, The frame is provided with at least three holes evenly distributed along its radial circumference. The support assembly comprises: An internally threaded metal tube, which is a T-shaped tube, corresponds one-to-one to the holes and is matched and embedded therein, and is fixed to the frame by screws passing through its "T"-shaped top and the wall of the frame, and has an internally threaded hole extending therethrough along its axial direction; and A threaded rod matches the internal threaded hole, and the threaded rod passes through the internal threaded hole so as to directly or indirectly abut against the radial outer periphery of the planar crystal.

7. The large-diameter flat wafer binding device according to claim 6, characterized in that: in, The support assembly further includes a support block, The support block is provided at one end of the threaded rod close to the planar crystal, and the support block is used to abut against the radial circumference of the planar crystal. The curvature of the side of the support block that contacts the flat crystal matches the curvature of the peripheral side of the flat crystal to be measured. A soft pad is further provided on the surface of the support block that contacts the planar crystal, so as to prevent the planar crystal from being deformed due to direct contact with a rigid body.

8. The large-diameter flat wafer binding device according to claim 7, characterized in that: in, The threaded rod has a first groove at the end close to the flat crystal. The bottom of the first groove is cylindrical and a spring is embedded therein. The end of the first groove is in the shape of a wide-mouthed cone. The support block is provided with a second groove in the shape of a wide-mouthed cone on the side facing away from the flat crystal. The support assembly also includes a connecting piece, which is a small metal ball. When the support assembly passes through the wall of the frame and abuts against the flat crystal, the connecting piece 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 tightened by the elastic force of the spring.

9. The large-diameter flat wafer binding device according to claim 1, characterized in that: in, The glue filled in the gap between the frame and the flat crystal is evenly spaced and arranged in an arc shape with wide sides and narrow in the middle. The supporting component does not pass through the glue.

10. The large-diameter flat wafer binding device according to claim 9, characterized in that: in, The shape of the glue is obtained by casting a mold with a set shape. The mold is annular, the outer diameter of the mold is the same as the inner diameter of the mirror frame, and the inner diameter of the mold is the same as the outer diameter of the flat crystal.

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