Tool for detecting whether crystal center hole is blocked or not

Abstract

The utility model provides a tool for detecting whether a center hole of a crystal is blocked or not, and relates to the technical field of eye vision optics. The tool for detecting whether the center hole of the crystal is blocked comprises a detection tool, a crystal groove is formed in one side of the detection tool, the crystal groove is used for being matched with the crystal in a positioning mode, a perforating needle is arranged in the crystal groove, and the perforating needle is used for being inserted into the center hole of the crystal when the crystal is placed into the crystal groove. And detecting whether the central hole of the crystal is blocked by a blocking object or not. According to the tool for detecting whether the center hole of the crystal is blocked or not, the crystal groove is matched with the crystal in a positioning mode, so that the perforating needle can accurately penetrate through the center hole of the crystal after the crystal is placed into the crystal groove, blocking objects in the center hole are pushed out, the detection accuracy in the production process is improved, and the production efficiency is improved. And blocked crystals are prevented from flowing to a subsequent production line, so that safe production is ensured.

Description

Technical Field

[0001] This utility model relates to the field of optometry technology, and in particular to a tool for detecting whether the central hole of a crystal is blocked. Background Technology

[0002] With an aging population, the number of patients with age-related cataracts is increasing. Implanting an artificial lens can largely restore the vision of cataract patients. We are now introducing a lens with a central hole for vision correction in aphakic eyes after cataract extraction in adults. The central hole provides a pre-existing drainage channel for aqueous humor in these patients. If glaucoma or persistent high intraocular pressure occurs post-operatively, a secondary surgery, including but not limited to laser posterior capsulotomy, can be performed to lower intraocular pressure.

[0003] After crystal processing, polishing is required to remove tool marks on the crystal surface and improve the surface quality of the crystal. During the polishing process, the central hole is easily blocked by impurities such as polishing beads. The diameter of the central hole is small and the polishing beads are transparent, making them difficult to detect and remove, resulting in crystals with blocked central holes entering the market. Utility Model Content

[0004] This invention provides a tooling for detecting whether the central hole of a crystal is blocked, thereby solving the problem that existing detection methods cannot completely and effectively detect whether the central hole of a crystal is blocked.

[0005] This utility model provides a tooling for detecting whether the central hole of a crystal is blocked, comprising:

[0006] The testing fixture has a crystal groove on one side for positioning a crystal. A perforating needle is provided inside the crystal groove for inserting into the center hole of the crystal when the crystal is placed in the crystal groove, in order to detect whether the center hole of the crystal is blocked by a blockage.

[0007] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the cross-section of the perforating needle is circular and the outer diameter of the perforating needle is smaller than the inner diameter of the central hole.

[0008] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the outer diameter of the perforating needle is 0.15~0.25mm.

[0009] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the height of the perforating needle is less than the depth of the crystal groove.

[0010] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein a groove communicating with the crystal groove is provided on one side of the detection tooling.

[0011] This utility model provides a tooling for detecting whether the central hole of a crystal is blocked, comprising:

[0012] A turnover box, wherein a plurality of protrusions are provided on one side of the turnover box, and crystal grooves are provided on the protrusions. The plurality of crystal grooves are arranged in an array. The crystal grooves are used to cooperate with crystal positioning. The bottom wall of the crystal grooves is provided with connection holes communicating with the crystal grooves.

[0013] The testing fixture is provided with a positioning groove, the boss is embedded in the positioning groove, and a perforating needle is provided in the positioning groove. The perforating needle is used to insert into the center hole of the crystal when the boss is embedded in the positioning groove, so as to detect whether the center hole of the crystal is blocked by a blockage.

[0014] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the length of the perforating needle is greater than or equal to the depth of the crystal groove.

[0015] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the central axis of the central hole and the central axis of the connecting hole are on the same straight line.

[0016] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the inner diameter of the connecting hole is larger than the inner diameter of the central hole.

[0017] According to the present invention, a tooling for detecting whether the central hole of a crystal is blocked is provided, wherein the boss is provided with a groove communicating with the crystal groove.

[0018] The tooling provided by this utility model for detecting whether the central hole of a crystal is blocked, through the crystal slot and crystal positioning cooperation, allows the perforating needle to accurately pass through the central hole of the crystal after the crystal is placed in the crystal slot, thereby pushing out the blockage in the central hole, improving the detection accuracy in the production process, ensuring that blocked crystals do not flow to the subsequent production line, and ensuring safe production. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a side view cross-sectional structural diagram of a tooling for detecting whether the central hole of a crystal is blocked, provided in one embodiment of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of a turnover box provided in another embodiment of this utility model.

[0022] Figure 3 This is a top view schematic diagram of a tooling structure for detecting whether the central hole of a crystal is blocked, provided in another embodiment of this utility model.

[0023] Figure 4 It is along Figure 3 A schematic diagram of the side view section structure made by section line AA in the diagram.

[0024] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0025] Figure label:

[0026] 110. Inspection fixture; 120. Crystal groove; 130. Piercing needle; 140. Crystal; 150. Center hole; 160. Groove; 170. Turnover box; 180. Boss; 190. Connecting hole; 200. Positioning groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0030] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0032] Figure 1 A side cross-sectional view of a tooling structure for detecting whether the central hole of a crystal is blocked, according to an embodiment of the present invention, is shown below. Figure 1 As shown, the tooling for detecting whether the central hole of a crystal is blocked includes a detection tooling 110. A crystal groove 120 is provided on one side of the detection tooling 110. The crystal groove 120 is used to position and cooperate with the crystal 140. A perforating needle 130 is provided in the crystal groove 120. The perforating needle 130 is used to insert into the central hole 150 of the crystal 140 when the crystal 140 is placed in the crystal groove 120, so as to detect whether the central hole 150 of the crystal 140 is blocked by a blockage.

[0033] The tooling provided by this utility model for detecting whether the central hole of a crystal is blocked, through the positioning and cooperation between the crystal groove 120 and the crystal 140, allows the perforating needle 130 to accurately pass through the central hole 150 of the crystal 140 after the crystal 140 is placed into the crystal groove 120, thereby pushing out the blockage in the central hole 150, improving the detection accuracy in the production process, ensuring that the blocked crystal 140 does not flow to the subsequent production line, and ensuring safe production.

[0034] In one embodiment of this utility model, the detection fixture 110 has a block structure; preferably, the detection fixture 110 is a cuboid. A crystal groove 120 is disposed on the upper surface of the detection fixture 110, and the shape of the crystal groove 120 is adapted to the shape of the crystal 140 to ensure that the crystal 140 can be completely placed within the crystal groove 120. Preferably, the depth of the crystal groove 120 is equal to or greater than the thickness of the crystal 140.

[0035] In one embodiment of this utility model, such as Figure 1 As shown, the cross-section of the perforating needle 130 is circular. Of course, the cross-sectional shape of the perforating needle 130 is not limited to this; it can also be elliptical, regular polygonal, or other shapes. The outer diameter of the perforating needle 130 is smaller than the inner diameter of the central hole 150. Preferably, the end of the perforating needle 130 is tapered, and the tapered end can serve as a guide to facilitate the insertion of the perforating needle 130 into the central hole 150.

[0036] In one embodiment of this utility model, the outer diameter of the perforating needle 130 is 0.15~0.25mm. Since the inner diameter of the central hole 150 is 0.3mm, if the outer diameter of the perforating needle 130 is too large, it will be difficult for the perforating needle 130 to pass through the central hole 150; if the outer diameter of the perforating needle 130 is too small, it will be unable to push all the blockage (polishing beads) out of the central hole 150. Therefore, after experimentation, the outer diameter of the perforating needle 130 was determined to be 0.15~0.25mm. Preferably, the outer diameter of the perforating needle 130 is 0.2mm. Of course, the outer diameter of the perforating needle 130 is not limited to this, and is specifically determined according to the inner diameter of the central hole 150.

[0037] In one embodiment of this utility model, such as Figure 1As shown, the height of the perforating needle 130 is less than the depth of the crystal groove 120. Because the inner diameter of the central hole 150 is very small, it is difficult to manually pass the perforating needle 130 through it. After placing the crystal 140 into the crystal groove 120, the crystal groove 120 and the crystal 140 are positioned together, ensuring the crystal 140 is in the correct position. The crystal 140 moves downwards under its own weight, and when it reaches the bottom of the crystal groove 120, the perforating needle 130 inside the crystal groove 120 is precisely inserted into the central hole 150 of the crystal 140. If the central hole 150 of the crystal 140 is blocked, the crystal 140 will not be able to reach the bottom of the crystal groove 120.

[0038] In a preferred embodiment of the present invention, the edge of the crystal groove 120 is set as a bevel or an arc surface, which can guide the crystal 140 to facilitate the placement of the crystal 140 into the crystal groove 120.

[0039] In one embodiment of this utility model, such as Figure 1 As shown, a groove 160 communicating with the crystal slot 120 is provided on one side of the inspection fixture 110. Since the shape of the crystal 140 matches the shape of the crystal slot 120, there is little or no gap between the crystal 140 and the crystal slot 120 after the crystal 140 is placed in it, making it difficult to directly remove the crystal 140 from the crystal slot 120. During the removal of the crystal 140, the groove 160 communicating with the crystal slot 120 on one side of the inspection fixture 110 facilitates the insertion of tools into the groove 160 to remove the crystal 140, thus improving inspection efficiency.

[0040] In a preferred embodiment of the present invention, the depth of the groove 160 is greater than the depth of the crystal groove 120, so that the tool can completely clamp the crystal 140 and ensure that the crystal 140 can be smoothly removed.

[0041] In a preferred embodiment of this invention, two grooves 160 are provided on one side of the testing fixture 110. The crystal groove 120 is rectangular. The length and width of the two grooves 160 are equal, and the depths of the two grooves 160 are the same, both being greater than the depth of the crystal groove 120. The two grooves 160 are symmetrically arranged about the perforating needle 130. By providing two grooves 160, the crystal 140 can be easily removed from both sides using tools.

[0042] Figure 2 A three-dimensional structural schematic diagram of a turnover box provided in another embodiment of the present invention is illustrated. Figure 3 A top view of a tooling structure for detecting whether the central hole of a crystal is blocked, according to another embodiment of the present invention, is shown. Figure 4 It is along Figure 3A schematic diagram of the side view section structure made by section line AA in the diagram. Figure 5 yes Figure 4 A magnified view of the local structure at point B, as shown below. Figures 2 to 5 As shown, this utility model also provides a tooling for detecting whether the central hole of a crystal is blocked. The tooling for detecting whether the central hole of a crystal is blocked includes a turnover box 170 and a detection tooling 110. A plurality of protrusions 180 are provided on one side of the turnover box 170. Each protrusion 180 has a crystal groove 120. The plurality of crystal grooves 120 are arranged in an array and are used for positioning and engaging with a crystal 140. The bottom wall of each crystal groove 120 has a connecting hole 190 communicating with it. The detection tooling 110 has a positioning groove 200. The protrusions 180 are embedded in the positioning groove 200. A perforating needle 130 is provided in the positioning groove 200. The perforating needle 130 is used to insert into the central hole 150 of the crystal 140 when the protrusions 180 are embedded in the positioning groove 200, to detect whether the central hole 150 of the crystal 140 is blocked by a blockage.

[0043] In one embodiment of this utility model, the turnover box 170 has a plate-like structure, and the protrusion 180 is a rectangular platform. Of course, the shape of the protrusion 180 is not limited to this; it can also be circular, a regular polygon, or other shapes. Multiple protrusions 180 are arranged in multiple rows and columns, with the same number of protrusions 180 in each row and the same number of protrusions 180 in each column. The distance between any two adjacent protrusions 180 is equal. Preferably, the protrusion 180 is integrally formed with the turnover box 170.

[0044] In one embodiment of the present invention, the length of the perforating needle 130 is greater than or equal to the depth of the crystal groove 120, so as to ensure that the perforating needle 130 can completely pass through the central hole 150 of the crystal 140.

[0045] In one embodiment of the present invention, the positioning groove 200 is a rectangular groove, the shape of the positioning groove 200 is adapted to the shape of the boss 180, and the depth of the positioning groove 200 is greater than or equal to the shape of the boss 180.

[0046] In one embodiment of the present invention, the central axis of the central hole 150 and the central axis of the connecting hole 190 are on the same straight line, that is, the central hole 150 and the connecting hole 190 are coaxially arranged, so that the connecting hole 190 can provide clearance space for the perforating needle 130.

[0047] In a preferred embodiment of the present invention, the cross-section of the connecting hole 190 is circular, and the inner diameter of the connecting hole 190 is larger than the inner diameter of the central hole 150, so as to prevent the blockage in the central hole 150 from clogging the connecting hole 190.

[0048] In a preferred embodiment of this utility model, the boss 180 is provided with a groove 160 communicating with the crystal slot 120. The function of the groove 160 in this embodiment is the same as that of the groove 160 in the above embodiments, which is to facilitate the insertion of tools into the groove 160 to remove the crystal 140, thereby improving inspection efficiency.

[0049] In a preferred embodiment of this invention, the depth of the groove 160 is greater than the depth of the crystal groove 120, which allows the tool to completely clamp the crystal 140, ensuring that the crystal 140 can be easily removed. The width of the groove 160 is greater than the sidewall thickness of the positioning groove 200, ensuring that the sidewall of the positioning groove 200 can be engaged in the groove 160 during the testing process.

[0050] In a preferred embodiment of the present invention, two grooves 160 are provided on one side of the detection fixture 110. The crystal groove 120 is a rectangular groove. The grooves 160 of the bosses 180 in the same row are on the same straight line. The length and width of two adjacent grooves 160 are equal, the depth of two adjacent grooves 160 is the same, and the depth of two adjacent grooves 160 is greater than the depth of the crystal groove 120.

[0051] The method of using the device for detecting whether the central hole 150 of the crystal 140 is blocked is as follows: Crystal 140 is placed in the crystal groove 120 of each boss 180 in sequence. After all crystals 140 are at the bottom of the crystal groove 120, the detection fixture 110 is fitted onto the boss 180 so that the perforating needle 130 is inserted into the central hole 150 of the crystal 140. If the perforating needle 130 can pass through the central hole 150 smoothly, it proves that the central hole 150 of the crystal 140 is not blocked by polishing beads or similar objects.

[0052] To illustrate the advantages of the tooling and apparatus for detecting whether the central hole of a crystal is blocked according to this invention, an embodiment is provided below for verification:

[0053] 300 perforated crystals 140 were selected, and 50 of them were manually blocked with polishing beads. The crystals were then inspected using a microscope and the two tools mentioned above for detecting whether the central hole of the crystal was blocked. The results are shown in Table 1 below.

[0054] Table 1

[0055]

[0056] 300 crystals were inspected using the two aforementioned fixtures for detecting whether the central hole of a crystal was blocked. The results were compared with those obtained using a microscope, focusing on detection rate and efficiency.

[0057] Microscopic inspection method: Microscopic inspection is highly efficient, but it cannot detect all crystals with blocked center holes. Therefore, the defective turnover rate is relatively high, with 10% of crystals with blocked center holes flowing to the next production line.

[0058] Example 1 Detection method: The tooling used in the first example for detecting whether the crystal center hole is blocked is used for detection. It can detect crystals with blocked center holes with 100% accuracy. This detection method is safe and will not allow unqualified crystals (crystals with blocked center holes) to be transferred to subsequent production lines. Therefore, it is suitable for the detection of customized wafers with small order quantities.

[0059] Example 2 Detection method: The tooling used in the second example for detecting whether the crystal center hole is blocked is used for detection. It can detect crystals with blocked center holes with 100% accuracy. This detection method is safe and effective. Moreover, the crystal does not need to be moved repeatedly. After being placed in the turnover box, it only needs to be detected sequentially using the detection tooling. The operation is simple and the detection efficiency is high.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tool for detecting whether a central hole of a crystal is clogged, characterized by, The detection tool (110) is provided with a crystal groove on one side, the crystal groove is used for positioning cooperation with a crystal (140), a perforating needle (130) is arranged in the crystal groove, and the perforating needle (130) is used for inserting into a center hole (150) of the crystal (140) when the crystal (140) is placed in the crystal groove, so as to detect whether the center hole (150) of the crystal (140) is blocked by a blockage. The cross section of the perforating needle (130) is circular, and the outer diameter of the perforating needle (130) is smaller than the inner diameter of the center hole (150).

2. The tool for detecting whether a crystal center hole is clogged according to claim 1, wherein The outer diameter of the perforating needle (130) is 0.15-0.25 mm.

3. The tool for detecting whether a crystal center hole is clogged according to claim 1, wherein The height of the perforating needle (130) is smaller than the depth of the crystal groove.

4. The tool for detecting whether a crystal center hole is clogged according to claim 1, wherein The detection tool (110) is provided with a groove (160) in communication with the crystal groove on one side.

5. The tool for detecting whether a crystal center hole is clogged according to claim 1, wherein The turnover box (170) is provided with a plurality of bosses (180) on one side, the bosses (180) are provided with crystal grooves, the crystal grooves are arranged in an array, the crystal grooves are used for positioning cooperation with a crystal (140), and the bottom wall of the crystal groove is provided with a connecting hole (190) in communication with the crystal groove.

6. A tool for detecting whether a central hole of a crystal is clogged, characterized by, The detection tool (110) is provided with a positioning groove (200), the boss (180) is embedded in the positioning groove (200), a perforating needle (130) is arranged in the positioning groove (200), the perforating needle (130) is used for inserting into a center hole (150) of the crystal (140) when the boss (180) is embedded in the positioning groove (200), so as to detect whether the center hole (150) of the crystal (140) is blocked by a blockage. The length of the perforating needle (130) is greater than or equal to the depth of the crystal groove. The center axis of the center hole (150) is in line with the center axis of the connecting hole (190).

7. The tool for detecting whether a crystal center hole is clogged according to claim 6, wherein The inner diameter of the connecting hole (190) is greater than the inner diameter of the center hole (150).

8. The tool for detecting whether a crystal center hole is clogged according to claim 6, wherein The boss (180) is provided with a groove (160) in communication with the crystal groove.

9. The tool for detecting whether a crystal center hole is clogged according to claim 6, wherein ​ 10. The tool for detecting whether a crystal center hole is clogged according to claim 6, wherein ​

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