Positioning device and positioning method for a spherically shaped rod lens

Abstract

The present disclosure provides a positioning device for a spherical rod lens, comprising: a first positioning part, one end of the first positioning part is provided with a first concave spherical part, the first concave spherical part is capable of cooperating with a convex spherical part at one end of the spherical rod lens, wherein the vertex of the first concave spherical part is located on the rotation axis of the first positioning part; and a second positioning part, the second positioning part is capable of moving in the direction of approaching or moving away from the first positioning part; wherein the second positioning part is capable of being driven to rotate by the first positioning part, one end of the second positioning part is provided with a second concave spherical part, the second concave spherical part is capable of cooperating with a convex spherical part at the other end of the spherical rod lens, wherein the vertex of the second concave spherical part is located on the rotation axis of the first positioning part; the first concave spherical part is arranged close to the second positioning part, and the second concave spherical part is arranged close to the first positioning part. The present disclosure also provides a positioning method for a spherical rod lens.

Description

Technical Field

[0001] This disclosure relates to an auxiliary device for optical device processing, and more particularly to a positioning device and positioning method for a spherical rod mirror. Background Technology

[0002] Spherical rod lenses are optical components widely used in optical instruments and medical devices. They are cylindrical in shape, with both ends formed as convex spherical surfaces, and the radius of the convex spherical surfaces is larger than the radius of the cylinder.

[0003] In the prior art, when processing the spherical rod mirror, two convex spherical surfaces are generally machined by clamping the outer circle with a three-jaw chuck, and then the spherical rod mirror is positioned by the two convex spherical surfaces, and the cylindrical outer surface of the spherical rod mirror is machined on an external cylindrical grinding machine.

[0004] However, when positioning the convex spherical surface on an external cylindrical grinding machine, it takes a long time to adjust the position of the spherical rod mirror in order to ensure that the centers of the two spherical surfaces are aligned, resulting in low processing efficiency. Summary of the Invention

[0005] To address one of the aforementioned technical problems, this disclosure provides a positioning device and a positioning method for a spherical rod mirror.

[0006] According to one aspect of this disclosure, a positioning device for a spherical rod mirror is provided, the spherical rod mirror including a cylindrical portion and convex spherical portions disposed at two ends of the cylindrical portion, the positioning device for the spherical rod mirror comprising:

[0007] A first positioning part, which is drivable to rotate, wherein one end of the first positioning part is provided with a first concave spherical surface, which can engage with a convex spherical surface at one end of the spherical rod mirror, wherein the apex of the first concave spherical surface is located on the rotation axis of the first positioning part; and

[0008] The second positioning part is movable in a direction approaching or moving away from the first positioning part, thereby allowing the first positioning part and the second positioning part to approach or move away from each other; wherein the second positioning part can be driven to rotate by the first positioning part, and one end of the second positioning part is provided with a second concave spherical surface, which can cooperate with the convex spherical surface at the other end of the spherical rod lens, wherein the vertex of the second concave spherical surface is located on the rotation axis of the first positioning part; the first concave spherical surface is disposed close to the second positioning part, and the second concave spherical surface is disposed close to the first positioning part.

[0009] The positioning device for a spherical rod mirror according to at least one embodiment of the present disclosure further includes:

[0010] The first pressure gauge has a first central hole extending from the apex of the first concave spherical surface of the first positioning part into the interior of the first positioning part. The first central hole is connected to the air pump through a first pipeline, and the first pressure gauge is disposed in the first pipeline.

[0011] The positioning device for a spherical rod mirror according to at least one embodiment of the present disclosure further includes:

[0012] The second pressure gauge has a second central hole extending from the apex of the second concave spherical part of the second positioning part into the interior of the second positioning part. The second central hole is connected to the air pump through a second pipeline, and the second pressure gauge is disposed in the second pipeline.

[0013] According to at least one embodiment of the positioning device for a spherical rod mirror of the present disclosure, a high-pressure gas with a first pressure is generated by an air pump. When the difference between the first pressure and the pressure displayed by the first pressure gauge is less than a first preset value, and when the difference between the first pressure and the pressure displayed by the second pressure gauge is less than the first preset value, it is determined that the spherical rod mirror is accurately positioned.

[0014] According to at least one embodiment of the positioning device for a spherical rod mirror, by adjusting the position of the spherical rod mirror, both ends of the spherical rod mirror are respectively in sealed contact with the first concave spherical surface and the second concave spherical surface.

[0015] The positioning device for a spherical rod mirror according to at least one embodiment of the present disclosure further includes:

[0016] The distance sensor determines that the spherical rod mirror is accurately positioned when the difference between the distance detected by the distance sensor between the first positioning part and the second positioning part and the length of the spherical rod mirror is less than a second preset value.

[0017] According to another aspect of this disclosure, a method for positioning a spherical rod mirror is provided, which utilizes the aforementioned positioning device for a spherical rod mirror. The method for positioning the spherical rod mirror includes:

[0018] The first positioning part and the second positioning part are installed such that the first positioning part and the second positioning part can approach or move away from each other, and the apex of the first concave spherical surface of the first positioning part and the apex of the second concave spherical surface of the first positioning part are both located on the rotation axis of the first positioning part.

[0019] One end of the spherical rod mirror is placed inside the first concave spherical part of the first positioning part, so that the spherical rod mirror at least partially closes the first central hole, thereby increasing the pressure displayed by the first pressure gauge;

[0020] Move the second positioning part closer to the first positioning part, and make the other end of the spherical rod mirror contact the second concave spherical surface of the second positioning part;

[0021] The spherical rod mirror is rotated along a rotation axis perpendicular to the rotation axis of the first positioning part, so that the difference between the first pressure and the pressure displayed by the first pressure gauge is less than a first preset value, and the difference between the first pressure and the pressure displayed by the second pressure gauge is less than a first preset value, thereby completing the positioning of the spherical rod mirror.

[0022] According to at least one embodiment of the positioning method of the spherical rod mirror of the present disclosure, by adjusting the position of the spherical rod mirror, both ends of the spherical rod mirror are respectively in sealed contact with the first concave spherical part and the second concave spherical part.

[0023] According to at least one embodiment of the positioning method for a spherical rod mirror of the present disclosure, the length of the spherical rod mirror is obtained; when adjusting the first positioning part, the distance between the first positioning part and the second positioning part is determined in real time; when the difference between the distance between the first positioning part and the second positioning part and the length of the rod mirror is less than a second preset value, the positioning of the spherical rod mirror is completed.

[0024] According to at least one embodiment of the positioning method for a spherical rod mirror of the present disclosure, the distance between the first positioning part and the second positioning part is determined by a ranging sensor. Attached Figure Description

[0025] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0026] Figure 1 This is a schematic diagram of the structure of a spherical rod mirror in the prior art.

[0027] Figure 2 This is a schematic diagram of the positioning device for a spherical rod mirror according to one embodiment of the present disclosure.

[0028] Figure 3 This is a structural schematic diagram of a positioning method for a spherical rod mirror according to one embodiment of the present disclosure.

[0029] The specific labels in the attached figures are as follows:

[0030] 100 spherical rod mirror

[0031] Positioning device for 200 spherical rod mirror

[0032] 210 First Positioning Department

[0033] 211 First concave spherical face

[0034] 212 First Center Hole

[0035] 220 Second Positioning Unit

[0036] 221 Second concave spherical face

[0037] 222 Second Center Hole

[0038] 230 First Pressure Gauge

[0039] 240 Second pressure gauge. Detailed Implementation

[0040] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0041] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0043] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0044] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0045] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0046] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0047] Figure 1 This is a schematic diagram of the structure of a spherical bar mirror 100 in the prior art.

[0048] like Figure 1As shown, the spherical bar mirror 100 includes a cylindrical portion and convex spherical portions disposed at two ends of the cylindrical portion. The vertices of the convex spherical portions at the two ends are the same as the center line of the cylindrical portion. At this time, the distance between the vertices of the two convex spherical portions is the length of the spherical bar mirror 100.

[0049] In this disclosure, the centers of the two convex spherical surfaces are different. Preferably, the center of the convex spherical surface is located outside the spherical rod mirror 100, so that the convex spherical surface has a smaller curvature, thereby enabling the positioning device 200 of the spherical rod mirror of this disclosure to have higher positioning efficiency.

[0050] Accordingly, both convex spherical surfaces are formed as spherical cap structures, and the volume of the spherical cap is less than half the volume of the entire sphere.

[0051] Figure 2 This is a schematic diagram of the structure of a spherical rod mirror according to one embodiment of the present disclosure.

[0052] like Figure 1 As shown, the positioning device 200 for the spherical rod mirror disclosed herein includes components such as a first positioning part 210 and a second positioning part 220.

[0053] Since the spherical rod mirror 100 will be ground to its outer diameter after being positioned, the positioning device 200 of the spherical rod mirror disclosed herein can be applied to an external cylindrical grinding machine. In this case, the first positioning part 210 can be fixed to the rotating shaft of the external cylindrical grinding machine, allowing the first positioning part 210 to be driven and rotated by the driving device of the external cylindrical grinding machine. In a preferred embodiment, the rotation axis of the first positioning part 210 is horizontally arranged.

[0054] Regarding the specific structure of the first positioning unit 210, as follows: Figure 1 As shown, one end of the first positioning part 210 is provided with a first concave spherical surface 211, which can mate with the convex spherical surface at one end of the spherical rod lens 100. In this disclosure, the first concave spherical surface 211 and the convex spherical surface at one end of the spherical rod lens 100 can have the same curvature.

[0055] The apex of the first concave spherical surface 211 is located on the rotation axis of the first positioning part 210; that is, the point where the first concave spherical surface 211 extends into the first positioning part 210 to the farthest point is located on the rotation axis of the first positioning part 210.

[0056] The second positioning part 220 can move in a direction that approaches or moves away from the first positioning part 210. In this disclosure, a guide rail can be provided on the worktable of the cylindrical grinding machine, a slide is provided on the guide rail, and the second positioning part 220 is rotatably provided on the slide, such that the rotation axis of the second positioning part 220 is horizontally positioned.

[0057] In this disclosure, once the spherical rod mirror is positioned (accurately positioned), it can act as a rotating component and transmit the rotational action of the first positioning part 210 to the second positioning part 220, thereby enabling the first positioning part 210, the spherical rod mirror 100, and the second positioning part 220 to rotate together.

[0058] Accordingly, when the slide block slides along the guide rail, the second positioning part 220 can approach or move away from the first positioning part 210. Preferably, the rotation axis of the second positioning part 220 coincides with the rotation axis of the first positioning part 210, and the length direction of the guide rail is parallel to the rotation axis of the first positioning part 210.

[0059] Structurally, the second positioning part 220 is the same as / similar to the first positioning part 210. For example... Figure 2 As shown, one end of the second positioning part 220 is provided with a second concave spherical surface 221, which can mate with the convex spherical surface at the other end of the spherical rod lens 100. In one embodiment, the two convex spherical surfaces of the spherical rod lens 100 have the same radius (curvature), and correspondingly, the first concave spherical surface 211 and the second concave spherical surface 221 also have the same radius (curvature). In another embodiment, the two convex spherical surfaces of the spherical rod lens 100 may have different diameters, and correspondingly, the first concave spherical surface 211 and the second concave spherical surface 221 are also different. In this case, it is only necessary to ensure that the convex spherical surface at one end of the spherical rod lens has the same radius as the first concave spherical surface 211, and that the convex spherical surface at the other end of the spherical rod lens has the same radius as the second concave spherical surface 221. More preferably, the first concave spherical surface 211 and the second concave spherical surface 221 also have different centers of sphere.

[0060] The vertex of the second concave spherical surface 221 is located on the rotation axis of the first positioning part 210 (or on the rotation axis of the second positioning part 220); the first concave spherical surface 211 is disposed close to the second positioning part 220, and the second concave spherical surface 221 is disposed close to the first positioning part 210.

[0061] Therefore, by setting the first positioning part 210 and the second positioning part 220, the spherical rod mirror 100 can be positioned between the first positioning part 210 and the second positioning part 220 to achieve the positioning of the spherical rod mirror 100.

[0062] As a key feature of this invention, when positioning the spherical rod mirror 100 between the first positioning part 210 and the second positioning part 220, it is necessary to ensure that the axis of the spherical rod mirror 100 is the same as the rotation axis of the first positioning part 210, or in other words, the axis of the spherical rod mirror 100 is the same as the rotation axis of the second positioning part 220.

[0063] Preferably, the positioning device 200 for the spherical rod mirror further includes a first pressure gauge 230 and a second pressure gauge 240. A first central hole 212 extends from the apex of the first concave spherical part 211 of the first positioning part 210 into the interior of the first positioning part 210. The diameter of the first central hole 212 is smaller than the diameter of the cylindrical part of the spherical rod mirror. In a specific embodiment, the diameter of the first central hole 212 is 1 / 3 to 1 / 2 of the diameter of the cylindrical part of the spherical rod mirror, thereby accurately indicating that the spherical rod mirror is accurately positioned.

[0064] Similarly, a second central hole 222 is provided extending from the apex of the second concave spherical part 221 of the second positioning part 220 into the interior of the second positioning part 220. The diameter of the second central hole 222 is smaller than the diameter of the cylindrical part of the spherical rod mirror. In a specific embodiment, the diameter of the second central hole 222 is 1 / 3 to 1 / 2 of the diameter of the cylindrical part of the spherical rod mirror, thereby enabling precise marking that the spherical rod mirror is accurately positioned.

[0065] The first central hole 212 is connected to the air pump through a first pipeline, and the first pressure gauge 230 is installed in the first pipeline, thereby enabling the first pressure gauge 230 to detect the gas pressure in the first pipeline; similarly, the second central hole 222 is connected to the air pump through a second pipeline, and the second pressure gauge 240 is installed in the second pipeline, thereby enabling the second pressure gauge 240 to detect the gas pressure in the second pipeline.

[0066] In one embodiment, such as Figure 1 As shown, the number of air pumps can be one, and correspondingly, the first pipeline and the second pipeline are both connected to the air pump; in another embodiment, the number of air pumps can be two, that is, two identical air pumps are used, and the first pipeline is connected to one air pump and the second pipeline is connected to the other air pump.

[0067] Accordingly, the air pump generates high-pressure gas with a first pressure, which is ejected from the first and second central holes and applies a thrust to both ends of the spherical rod mirror. This thrust pushes the spherical rod mirror away from the first positioning part 210 and the second positioning part 220, preventing the spherical rod mirror from being in close contact with the first and second positioning parts 210 and 220, thus facilitating the adjustment of the position of the spherical rod mirror. In other words, due to the presence of this thrust, one end of the spherical rod mirror can be pushed away from the first positioning part, and the other end of the spherical rod mirror can be pushed away from the second positioning part. When the second positioning part moves horizontally, it can overcome these two thrusts, causing one end of the spherical rod mirror to make sealed contact with the first positioning part, and the other end of the spherical rod mirror to make sealed contact with the second positioning part.

[0068] Accordingly, when the difference between the first pressure and the pressure displayed by the first pressure gauge 230 is less than a first preset value, and when the difference between the first pressure and the pressure displayed by the second pressure gauge 240 is less than a first preset value, it is determined that the spherical rod mirror 100 is accurately positioned. The first preset value can be 5% of the first pressure.

[0069] In this disclosure, by adjusting the position of the spherical rod mirror 100, both ends of the spherical rod mirror 100 are respectively in sealed contact with the first concave spherical part 211 and the second concave spherical part 221, thereby increasing the pressure displayed by the first pressure gauge 230 and the second pressure gauge 240.

[0070] In another embodiment, since the centers of the first concave spherical surface 211 and the second concave spherical surface 221 are not the same, and in particular, the bottom radius of the first concave spherical surface 211 is 1.5-2 times the bottom radius of the convex spherical surface at one end of the spherical rod mirror 100 (i.e., the radius of the cylindrical portion), and similarly, the bottom radius of the second concave spherical surface 221 is 1.5-2 times the bottom radius of the convex spherical surface at the other end of the spherical rod mirror 100 (i.e., the radius of the cylindrical portion), if the spherical rod mirror 100 is in a slightly tilted state (e.g., the angle between the spherical rod mirror 100 and the horizontal axis is within 5°), and when it is in contact with the first concave spherical surface 211 and the second concave spherical surface 221, the distance between the first positioning part 210 and the second positioning part 220 will be greater than the length of the spherical rod mirror 100. Accordingly, the positioning of the spherical rod mirror 100 can also be determined by the distance between the first positioning part 210 and the second positioning part 220. The distance between the first positioning part 210 and the second positioning part 220 can be represented by the distance between the vertices of the first concave spherical surface 211 and the second concave spherical surface 221.

[0071] Accordingly, the positioning device 200 for the spherical rod mirror disclosed herein may also include a distance sensor, which may be a laser distance sensor or other components. This disclosure does not detect the type of the distance sensor, as long as it can obtain the distance between the first positioning part 210 and the second positioning part 220.

[0072] Accordingly, when the difference between the distance between the first positioning part 210 and the second positioning part 220 detected by the ranging sensor and the length of the spherical rod mirror 100 is less than a second preset value, it is determined that the spherical rod mirror 100 is accurately positioned; wherein, the setting of the second preset value mainly takes into account the processing errors of the two convex spherical surfaces of the spherical rod mirror 100 and the processing errors of the first concave spherical surface 211 and the second concave spherical surface 221, etc. In this disclosure, the second preset value can be 0.1 mm.

[0073] Therefore, this disclosure ensures that the positioning device for the spherical rod mirror can accurately position the spherical rod mirror by jointly judging the distance values ​​detected by the first pressure gauge, the second pressure gauge, and the distance sensor.

[0074] Figure 3 This is a structural schematic diagram of a positioning method for a spherical rod mirror according to one embodiment of the present disclosure.

[0075] The positioning method for the spherical rod mirror disclosed herein can be implemented using the aforementioned spherical rod mirror positioning device 200, that is, the spherical rod mirror is positioned using the aforementioned spherical rod mirror positioning device.

[0076] Specifically, such as Figure 3 As shown, the positioning method of the spherical rod mirror disclosed herein includes:

[0077] 302. Install the first positioning part 210 and the second positioning part 220, such that the first positioning part 210 and the second positioning part 220 can approach or move away from each other, and the apex of the first concave spherical surface 211 and the apex of the second concave spherical surface 221 of the first positioning part 210 are both located on the rotation axis of the first positioning part 210; that is, ensure that the first positioning part 210 and the second positioning part 220 are well aligned.

[0078] 304. One end of the spherical rod mirror 100 is disposed in the first concave spherical part 211 of the first positioning part 210, and the spherical rod mirror 100 at least partially closes the first central hole 212, thereby increasing the pressure displayed by the first pressure gauge 230;

[0079] 306. Move the second positioning part 220 so that it approaches the first positioning part 210 and the other end of the spherical rod mirror 100 contacts the second concave spherical part 221 of the second positioning part 220.

[0080] 308. Rotate the spherical rod mirror 100 along a rotation axis perpendicular to the rotation axis of the first positioning part 210, so that the difference between the first pressure and the pressure displayed by the first pressure gauge 230 is less than a first preset value, and the difference between the first pressure and the pressure displayed by the second pressure gauge 240 is less than the first preset value, thus completing the positioning of the spherical rod mirror. That is to say, when the spherical rod mirror 100 is not accurately positioned, the spherical rod mirror 100 cannot make sealed contact with the first positioning part 210 and / or the second positioning part 220, so that the displayed pressure of at least one of the first pressure gauge 230 and the second pressure gauge 240 cannot rise or cannot rise rapidly. At this time, it is necessary to adjust the position of the spherical rod mirror 100 and simultaneously move the second positioning part 220.

[0081] In this disclosure, in step 308, when rotating the spherical rod mirror 100, the spherical rod mirror 100 can also be rotated around its central axis, so that the spherical rod mirror 100 rotates, so that the spherical rod mirror 100 can be positioned more quickly.

[0082] After the spherical rod mirror is positioned (centered), the first positioning part 100 can be driven to rotate, and the outer diameter of the spherical rod mirror 100 can be ground. Before driving the first positioning part 100 to rotate, the first and second pipes need to be removed first.

[0083] In this disclosure, the positioning method for the spherical rod mirror further includes: obtaining the length of the spherical rod mirror 100; when adjusting the first positioning part 210, measuring the distance between the first positioning part 210 and the second positioning part 220 by a distance measuring sensor, judging the distance between the first positioning part 210 and the second positioning part 220 in real time, and completing the positioning of the spherical rod mirror when the difference between the distance between the first positioning part 210 and the second positioning part 220 and the length of the rod mirror is less than a second preset value.

[0084] Compared with existing positioning solutions, the positioning device and method for spherical rod mirrors disclosed herein can improve clamping efficiency and accuracy, reduce the operation time of rod mirror processing, and improve the efficiency and accuracy of rod mirror processing.

[0085] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0087] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A positioning device for a spherically rod lens comprising a cylindrical portion and convex spherical portions provided at both end portions of the cylindrical portion, characterized by, The positioning device of the spherical rod lens comprises: a first positioning part capable of being driven to rotate, wherein one end of the first positioning part is provided with a first concave spherical part capable of cooperating with a convex spherical part at one end of the spherical rod lens, and the vertex of the first concave spherical part is located on the rotation axis of the first positioning part; a second positioning part capable of moving towards or away from the first positioning part so that the first positioning part and the second positioning part can approach or move away from each other, wherein the second positioning part can be driven to rotate by the first positioning part, one end of the second positioning part is provided with a second concave spherical part capable of cooperating with a convex spherical part at the other end of the spherical rod lens, and the vertex of the second concave spherical part is located on the rotation axis of the first positioning part; the first concave spherical part is arranged close to the second positioning part, and the second concave spherical part is arranged close to the first positioning part; a first pressure gauge, a first central hole is formed from the vertex of the first concave spherical part of the first positioning part to the inside of the first positioning part, the first central hole is connected to an air pump through a first pipeline, and the first pressure gauge is arranged on the first pipeline; wherein the aperture of the first central hole is 1 / 3 to 1 / 2 of the diameter of the cylindrical part of the spherical rod lens; a second pressure gauge, a second central hole is formed from the vertex of the second concave spherical part of the second positioning part to the inside of the second positioning part, the second central hole is connected to an air pump through a second pipeline, and the second pressure gauge is arranged on the second pipeline; wherein the aperture of the second central hole is 1 / 3 to 1 / 2 of the diameter of the cylindrical part of the spherical rod lens; wherein by adjusting the position of the spherical rod lens, the two ends of the spherical rod lens are in sealed contact with the first concave spherical part and the second concave spherical part respectively; high-pressure gas with a first pressure is generated by the air pump, and when the difference between the first pressure and the display pressure of the first pressure gauge is less than a first preset value, and when the difference between the first pressure and the display pressure of the second pressure gauge is less than a first preset value, it is judged that the spherical rod lens is accurately positioned.

2. A positioning device for a spherically shaped rod lens as claimed in claim 1, characterized in that Further comprising: a distance measuring sensor, when the difference between the distance detected by the distance measuring sensor between the first positioning part and the second positioning part and the length of the spherical rod lens is less than a second preset value, it is judged that the spherical rod lens is accurately positioned.

3. A method of positioning a spherically shaped rod lens, using the positioning device for a spherically shaped rod lens according to claim 1 or 2, characterized in that The positioning method of the spherical rod lens comprises: installing the first positioning part and the second positioning part, and enabling the first positioning part and the second positioning part to approach or move away from each other, and the vertex of the first concave spherical part of the first positioning part and the vertex of the second concave spherical part are located on the rotation axis of the first positioning part; arranging one end of the spherical rod lens in the first concave spherical part of the first positioning part, and enabling the spherical rod lens to at least partially close the first central hole, so that the display pressure of the first pressure gauge increases; moving the second positioning part, and enabling the second positioning part to approach the first positioning part, and enabling the other end of the spherical rod lens to contact the second concave spherical part of the second positioning part; rotating the spherically-bar lens along a rotation axis perpendicular to the rotation axis of the first positioning part, so that the difference between the first pressure and the displayed pressure of the first pressure gauge is less than a first preset value, and the difference between the first pressure and the displayed pressure of the second pressure gauge is less than the first preset value, and the positioning of the spherically-bar lens is completed; wherein the position of the spherically-bar lens is adjusted so that the two ends of the spherically-bar lens are in sealing contact with the first concave spherical part and the second concave spherical part respectively.

4. The method of positioning a spherically-barrelled lens according to claim 3, wherein The length of the spherically-bar lens is obtained; when the first positioning part is adjusted, the distance between the first positioning part and the second positioning part is determined in real time; when the difference between the distance and the length of the spherically-bar lens is less than a second preset value, the positioning of the spherically-bar lens is completed.

5. The method of positioning a spherically-barrel lens of claim 3, wherein, The distance between the first positioning part and the second positioning part is determined by a distance measuring sensor.

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