Sectional type lens data detection jig

Abstract

The utility model discloses a sectional type lens data detection jig. Comprising a detection chassis and a detection sleeve which is in threaded connection with the detection chassis; the interior of the detection sleeve is a cylindrical cavity divided into an upper part and a lower part; wherein the upper cavity is used for installing a lens, and the lower cavity is used for installing CUBE or cylindrical glass; the diameter of the upper cavity is larger than that of the lower cavity, so that a lens bearing surface is formed at the junction of the two cavities; a counter bore is formed in the joint of the detection chassis and the detection sleeve, and a protruding part matched with the counter bore is arranged at the lower end of the detection sleeve. The utility model provides a sectional type lens data detection jig which can solve the problems that a detection jig is large in machining difficulty, and the precision is difficult to guarantee.

Description

Technical Field

[0001] The utility model relates to the technical field of lens data detection, in particular to a segmented lens data detection fixture. Background Art

[0002] The data of lens imaging is generally detected by an HR device. During detection, specific detection fixtures need to be used to transfer and limit different lenses according to their parameters and structures. The accuracy of the fixture directly affects the accuracy and stability of the data detection results.

[0003] In the existing research and development process, it is found that if a CUBE (prism) needs to be added for comparative testing during lens testing, it will cause the structure of the integrated detection fixture to be complex, with large processing difficulty, difficult to guarantee accuracy, large waste of raw materials and high cost during processing, and the existing fixtures mostly use stainless steel materials that are easy to scratch the lens frame. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to propose a segmented lens data detection fixture, which can solve the problems of large processing difficulty and difficult to guarantee accuracy of the detection fixture.

[0005] According to one aspect of the present utility model, there is provided a segmented lens data detection fixture, including: a detection chassis and a detection sleeve threadedly connected to the detection chassis;

[0006] The detection sleeve has a cylindrical cavity divided into upper and lower parts inside; wherein, the upper cavity is used to install the lens, and the lower cavity is used to install the CUBE or cylindrical glass; and, the diameter of the upper cavity is larger than that of the lower cavity, so that a lens receiving surface is formed at the junction of the two cavities; a counterbore is provided at the connection of the detection chassis and the detection sleeve, and a protruding portion that fits with the counterbore is provided at the lower end of the detection sleeve.

[0007] In the above technical solution, since the detection fixture is divided into two parts, the detection sleeve and the detection chassis, from the previous integral type, the separate processing of the fixture greatly reduces the processing difficulty, improves the utilization rate of raw materials, and reduces the cost. Further, the detection sleeve and the detection chassis adopt the method of counterbore support and threaded connection to solve the problem of insufficient dimensional accuracy of the split fixture.

[0008] In some embodiments, the material of the detection sleeve is PEEK, and the material of the detection chassis is SUS304.

[0009] In the above technical solution, since the material of the detection sleeve is PEEK and the material of the detection chassis is SUS304, the fixture can prevent the lens frame from being scratched while ensuring the strength of the lower part.

[0010] It should be noted that these two materials are known materials, namely polyetheretherketone (abbreviated as PEEK, a special engineering plastic) and stainless steel (SUS304, an austenitic stainless steel). That is, it belongs to the application of known materials or methods in the prior art to products with shapes and structures, rather than an improvement to the materials or methods themselves, and can be considered as the object protected by the utility model patent.

[0011] In some embodiments, the counterbore includes a chassis limiting surface and a chassis supporting surface; the protruding portion includes a sleeve limiting surface and a sleeve supporting surface; wherein, the sleeve limiting surface cooperates with the chassis limiting surface, and the chassis supporting surface cooperates with the sleeve supporting surface.

[0012] In the above technical solution, due to the control of the dimensional tolerance of the fixture, the sleeve limiting surface, the sleeve supporting surface cooperate with the chassis limiting surface and the chassis supporting surface, so as to ensure the dimensional accuracy after the combination of the detection sleeve and the detection chassis.

[0013] In some embodiments, a plurality of CUBE limiting grooves are provided on the wall surface of the lower cavity.

[0014] In the above technical solution, a plurality of CUBE limiting grooves are provided on the wall surface of the lower cavity; the lower cavity can place CUBE or cylindrical glass, and then the influence of CUBE and cylindrical glass on the lens detection can be compared and analyzed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is the front view (split) of an embodiment of a segmented lens data detection fixture of the present invention;

[0017] Figure 2 It is the front view (combined) of an embodiment of a segmented lens data detection fixture of the present invention;

[0018] Figure 3 It is the three-dimensional view (split) of an embodiment of a segmented lens data detection fixture of the present invention;

[0019] Figure 4 It is an embodiment of a segmented lens data detection fixture of the present invention based on Figure 1 Schematic A-A sectional view (split);

[0020] Figure 5 This is a schematic cross-sectional view (split) of a B-B section of an embodiment of a segmented lens data detection fixture of the present utility model based on Figure 3 ;

[0021] Figure 6 This is a schematic cross-sectional view of an embodiment of a segmented lens data detection fixture of the present utility model based on Figure 5 An enlarged schematic view at D;

[0022] Figure 7 This is a schematic structural view of a detection sleeve in the C direction in the top view direction of an embodiment of a segmented lens data detection fixture of the present utility model based on Figure 1 ;

[0023] Figure 8 This is a schematic principle view of an embodiment of a segmented lens data detection fixture of the present utility model. Specific embodiments

[0024] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only used to illustrate the present utility model, but do not limit the scope of the present utility model. Similarly, the following embodiments are only partial embodiments of the present utility model rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present utility model.

[0025] The present utility model provides a segmented lens data detection fixture, which can solve the problems of large processing difficulty and difficult accuracy guarantee of the detection fixture.

[0026] Embodiment 1

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , a segmented lens data detection fixture, comprising: a detection chassis 2 and a detection sleeve 1 threadedly connected to the detection chassis 2;

[0028] Please refer to Figure 4 , the inside of the detection sleeve is a cylindrical cavity divided into upper and lower parts; wherein, the upper cavity 101 is used for installing a lens, and the lower cavity 102 is used for installing a CUBE or a cylindrical glass; and, the diameter of the upper cavity 101 is larger than the diameter of the lower cavity 102, so that a lens receiving surface (not marked in the figure) is formed at the junction of the two cavities; the detection chassis 2 is provided with a counterbore at the connection with the detection sleeve 1, and the lower end of the detection sleeve 1 is provided with a protruding portion that fits with the counterbore.

[0029] In this embodiment, please refer to Figure 5 , Figure 6 , Figure 7, the counterbore includes a chassis limiting surface 201 and a chassis bearing surface 202; the protruding portion includes a sleeve limiting surface 105 and a sleeve bearing surface 106; wherein, the sleeve limiting surface 201 cooperates with the chassis limiting surface 105, and the chassis bearing surface 202 cooperates with the sleeve bearing surface 106. Due to the dimensional tolerance control of the fixture, the sleeve limiting surface, the sleeve bearing surface cooperate with the chassis limiting surface and the chassis bearing surface, ensuring the dimensional accuracy of the combination of the detection sleeve and the detection chassis.

[0030] In this embodiment, the material of the detection sleeve 1 is PEEK, and the material of the detection chassis 2 is SUS304. Since the material of the detection sleeve is PEEK and the material of the detection chassis is SUS304, the fixture can prevent the spectacle frame from being scratched while ensuring the strength of the lower part. It should be noted that these two materials are known materials, namely polyetheretherketone (abbreviated as PEEK, a special engineering plastic) and stainless steel (SUS304 is an austenitic stainless steel). That is, applying known materials or methods in the prior art to products with shapes and structures does not involve improvements to the materials or methods themselves and can be considered as an object protected by the utility model patent.

[0031] Please refer to Figure 4 , several CUBE limiting grooves are provided at the wall surface of the lower cavity, forming a CUBE limiting surface 103 at the wall surface of the lower cavity. Among them, 104 in the figure is the wall surface of the lower cavity or the limiting surface 104 of the cylindrical glass. Several CUBE limiting grooves are provided at the wall surface of the lower cavity; the lower cavity can hold the CUBE or the cylindrical glass, and thus the influence of the CUBE and the cylindrical glass on the lens detection can be compared and analyzed.

[0032] In this embodiment, since the detection fixture is divided from the previous integral type into two parts, namely the detection sleeve and the detection chassis, the separate processing of the fixture greatly reduces the processing difficulty, improves the utilization rate of raw materials, and reduces the cost. Further, the detection sleeve and the detection chassis adopt the method of counterbore support combined with threaded connection to solve the problem of insufficient dimensional accuracy of the split fixture.

[0033] Specifically, please refer comprehensively to Figures 1 to 7, the fixture of this embodiment includes a detection sleeve 1, a detection chassis 2, a lower cavity 102, an upper cavity 101, a CUBE limiting surface 103, a cylindrical glass limiting surface 104, a sleeve limiting surface 105, a sleeve bearing surface 106, a lens limiting surface 107, a chassis limiting surface 201, a chassis bearing surface 202, an HR device bearing surface 203, and an HR device limiting surface 204. The detection sleeve 1 is screwed and fixed to the detection chassis 2 through screw threads. The two parts of the fixture are combined by screw threads and are not easily dropped. The detection chassis 2 is directly placed on the HR device through the HR device bearing surface 203 and the HR device limiting surface 204. The CUBE is placed in the lower cavity 102 through multiple CUBE limiting surfaces 103, and the lens is placed in the upper cavity 101 through the lens limiting surface 107.

[0034] For the working principle of this embodiment, please refer to Figure 8 , because the detection fixture is divided from the previous integral type into two parts, namely the detection sleeve 1 and the detection chassis 2, the fixture is processed separately, which improves the utilization rate of raw materials and reduces the cost. Due to the control of the dimensional tolerance of the fixture and the cooperation between the sleeve limiting surface 105, the sleeve bearing surface 106 and the chassis limiting surface 201, the chassis bearing surface 202, the dimensional accuracy after the combination of the detection sleeve 1 and the detection chassis 2 is guaranteed. Because the detection sleeve 1 is provided with multiple CUBE limiting surfaces 103 and cylindrical glass limiting surfaces 104, the chamber 102 can place the CUBE or the cylindrical glass, and thus the influence of the CUBE and the cylindrical glass on the lens detection can be compared and analyzed. Because the material of the detection sleeve 1 is PEEK and the material of the detection chassis 2 is SUS304, the fixture can prevent the lens frame from being scratched while ensuring the strength of the lower half. The fixture of this embodiment has a low processing difficulty, the accuracy is guaranteed, the utilization rate of raw materials is high, the processing cost is reduced, and the combination of different materials can ensure both strength and prevent the lens frame from being scratched.

[0035] The above are only some embodiments of the present invention, and thus do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A segmented lens data detection fixture, characterized in that, Including: A detection chassis and a detection sleeve threadedly connected to the detection chassis; The detection sleeve has a cylindrical cavity divided into upper and lower parts inside; among them, the upper cavity is used to install a lens, and the lower cavity is used to install a CUBE or a cylindrical glass; moreover, the diameter of the upper cavity is larger than that of the lower cavity, so that a lens receiving surface is formed at the junction of the two cavities; a counterbore is provided at the connection of the detection chassis and the detection sleeve, and a protruding portion that fits with the counterbore is provided at the lower end of the detection sleeve.

2. The segmented lens data detection fixture according to claim 1, characterized in that The material of the detection sleeve is PEEK, and the material of the detection chassis is SUS304.

3. The segmented lens data detection fixture according to claim 1, characterized in that The counterbore includes a chassis limiting surface and a chassis supporting surface; the protruding portion includes a sleeve limiting surface and a sleeve supporting surface; among them, the sleeve limiting surface cooperates with the chassis limiting surface, and the chassis supporting surface cooperates with the sleeve supporting surface.

4. The segmented lens data detection fixture according to claim 1, characterized in that A number of CUBE limiting grooves are provided on the wall surface of the lower cavity.

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