Clamping device and clamping device for optical lens

Abstract

The utility model discloses a holder and a clamping device for an optical lens, and the holder comprises a body which comprises an accommodation structure and an adsorption structure. The containing structure comprises a containing cavity, a receding cavity and an abutting part, the receding cavity and the abutting part are oppositely arranged at the two ends of the containing cavity, the abutting part is used for supporting a support of the optical lens, the containing cavity is used for containing the optical lens, and the receding cavity is used for containing the image obtaining end of the optical lens; the adsorption structure comprises an adsorption opening formed in the body, and the adsorption end of the adsorption opening and the abutting part are arranged on the same side. The clamping device adopts the clamping device, and by applying the clamping device provided by the invention, the stability and the accuracy of the optical lens in the clamping, transporting, detecting or assembling process can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping device technical field, especially in a kind of optical lens holder and clamping device. BACKGROUND

[0002] Optical lens is indispensable component in machine vision system, directly influence the imaging quality of good and bad, influence algorithm implementation and effect.And the optical lens used by current smart phone usually has larger field of view angle 80-130 °, therefore, the clamping of lens must ensure that it cannot block optical area, i.e.the angle range of space area that lens can observe, simultaneously, lens bottom needs to assemble photosensitive sensor and other components, resulting in lens bottom cannot be blocked interference, therefore, when optical lens is picked up and transported assembly, only the two sides of lens support can be clamped.

[0003] But the size of the part that lens support can be clamped is extremely narrow, therefore, the requirement of clamping device is very high, two clamping jaws of clamping device need high synchronism when clamping lens support, and the one side that clamping jaw and lens support adhere also needs higher flatness, to ensure the precision of assembling photosensitive sensor and other components.

[0004] And the clamping device used at present cannot realize higher synchronism, resulting in that the precision of lens original element cannot be guaranteed when assembling, simultaneously, the clamping stability of existing clamping device to lens support is general, in picking process, it is prone to the phenomenon that clamping force is too large to cause lens support deformation and scrap, or, clamping force is insufficient to cause lens support to drop or precision error to be too large when element assembly.

[0005] Therefore, the present application proposes a technical scheme to solve the above problems. INVENTION CONTENTS

[0006] The utility model aims at at least one of the technical problems existing in prior art. To this end, the utility model provides a kind of optical lens holder and clamping device, clamping device is fixed on the containing structure by vacuum adsorption to complete the picking of optical lens, wherein, the containing structure of clamping device can provide enough field of view angle for FOV end (i.e.the image acquisition end of optical lens) of optical lens, to avoid any obstruction to the function of lens in clamping process, simultaneously, abutment portion is closely adhered with the support of optical lens, provides stable support, also can be easily assembled photosensitive sensor and other components, compact structure, can ensure the stability and accuracy of optical lens in clamping process.And clamping device can ensure the stability and accuracy of optical lens in clamping, transportation, detection or assembly process by applying the clamping device.

[0007] Firstly, according to the utility model embodiment of a kind of optical lens holder, comprising:

[0008] The body comprises a containing structure and an adsorbing structure;

[0009] The containing structure comprises a containing cavity, an avoiding cavity and an abutting portion, the avoiding cavity and the abutting portion are oppositely arranged at two ends of the containing cavity, the abutting portion is used for supporting a support of the optical lens, the containing cavity is used for placing the optical lens, and the avoiding cavity is used for containing an image acquisition end of the optical lens.

[0010] The adsorbing structure comprises an adsorbing port arranged on the body, and an adsorbing end of the adsorbing port is arranged on the same side as the abutting portion.

[0011] The optical lens holder has at least the following beneficial effects: the optical lens is stably fixed on the containing structure by the vacuum adsorption to complete the pickup of the optical lens, the containing structure of the holder can provide a sufficient field of view for the FOV end (i.e., the image acquisition end of the optical lens) of the optical lens to avoid any obstruction to the function of the lens during the clamping process, meanwhile, the abutting portion is tightly combined with the support of the optical lens to provide stable support, and the optical lens holder can also facilitate the assembly of a photosensitive sensor and other components, and has a compact structure, so that the stability and accuracy of the optical lens during the clamping process can be ensured.

[0012] The avoiding cavity comprises a first opening and a second opening connected in sequence, the first opening is arranged on the same side as the containing cavity, and the first opening is in communication with the containing cavity, so that the image acquisition end of the optical lens can enter the avoiding cavity through the first opening.

[0013] The diameters of the first opening and the second opening decrease along a direction away from the containing cavity.

[0014] The avoiding cavity has a trapezoidal structure in a cross-sectional view along an axis of the containing cavity.

[0015] The four adsorbing ports are circumferentially arranged at four corners of the abutting portion around the axis of the containing cavity.

[0016] The adsorbing structure further comprises a vacuum channel, and the vacuum channel is arranged on the body and in communication with the adsorbing port.

[0017] The vacuum channel comprises a first channel, a second channel and a third channel, the first channel is connected with a vacuum generating device outside, the second channel and the third channel are both in communication with the first channel, the second channel is in communication with two of the four adsorbing ports, and the third channel is in communication with the other two of the four adsorbing ports.

[0018] The vacuum passage comprises a first passage, a second passage and a third passage which are sequentially communicated, the first passage is connected with the vacuum generating device outside, the second passage is communicated with two of the four suction ports, and the third passage is communicated with the other two of the four suction ports.

[0019] The abutting portion can be completely attached to the outer wall of the support of the optical lens.

[0020] In the second aspect, the clamping device according to the embodiment of the present application applies the clamping device.

[0021] The clamping device according to the embodiment of the present application has at least the following beneficial effects: the clamping device can ensure the stability and accuracy of the optical lens in the clamping, transportation, detection or assembly process by applying the clamping device provided in the present application.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following figures, in which:

[0024] Figure 1 FIG. 1 is a structural diagram of a clamping device for an optical lens according to an embodiment of the present application;

[0025] Figure 2 FIG. 2 is a structural perspective view of the clamping device for the optical lens according to the embodiment of the present application;

[0026] Figure 3 FIG. 3 is a partial sectional view of a support according to the embodiment of the present application;

[0027] Figure 4 FIG. 4 is an implementation diagram of the clamping device for the optical lens according to the embodiment of the present application.

[0028] REFERENCE SIGNS

[0029] Optical lens 1;

[0030] Support 100; accommodating cavity 110; avoiding cavity 120; abutting portion 130; suction port 140;

[0031] Mounting block 200; first connecting portion 210; second connecting portion 220; positioning pin 221; connecting hole 222; rib plate 230;

[0032] First passage 300;

[0033] The second channel 400;

[0034] The third channel 500. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0036] In the description of the present application, it should be understood that, in relation to the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application.

[0037] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, etc. is only for the purpose of distinguishing technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0038] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] With reference to Figures 1 to 4 , the present application provides a holder of an optical lens 1.

[0040] As shown in the figure, the holder comprises a body and a containing structure and an adsorption structure arranged on the body.

[0041] Specifically, as shown in the figure, the body comprises a mounting block 200 and a bracket 100, and the bracket 100 is fixedly connected with the mounting block 200. Figure 1

[0042] Preferably, the bracket 100 and the mounting block 200 of the present application are a pressure casting integrated structure.

[0043] The containing structure is arranged on the bracket 100, and the adsorption structure is built-in in the bracket 100. ​

[0044] Specifically, as shown in the figure, the accommodating structure includes an accommodating cavity 110, an avoiding cavity 120, and an abutting portion 130. The avoiding cavity 120 and the abutting portion 130 are oppositely arranged at two ends of the accommodating cavity 110. The abutting portion 130 is used to support the support 100 of the optical lens 1. The accommodating cavity 110 is used to place the optical lens 1. The avoiding cavity 120 is used to accommodate the image acquisition end of the optical lens 1.

[0045] The avoiding cavity 120 includes a first opening and a second opening connected in sequence. The first opening is arranged on the same side of the accommodating cavity 110 and communicates with the accommodating cavity 110. The image acquisition end of the optical lens 1 can enter the avoiding cavity 120 through the first opening. Specifically, as shown in the figure, the diameters of the first opening and the second opening decrease in the direction away from the accommodating cavity 110. That is, the avoiding cavity 120 is in a trapezoidal structure in the cross-sectional view along the axis of the accommodating cavity 110.

[0046] It can be understood that the structure of the avoiding cavity 120 is a reversed designed conical frustum opening on the support 100. The opening angle of the avoiding cavity 120 is greater than the field of view angle of the image acquisition end of the optical lens 1, so as to avoid any obstruction to the function of the lens during clamping and reduce the interference to the image acquisition end of the lens. Specifically, the field of view angle of the image acquisition end of the optical lens 1 is 80° to 130°. Therefore, the opening angle of the avoiding cavity 120 is not less than 130°, so as to ensure that the image acquisition end of the lens is not interfered.

[0047] Further, after the optical lens 1 is accommodated in the accommodating cavity 110, the support 100 of the optical lens 1 can directly abut on the abutting portion 130. It should be noted that the abutting portion 130 can be completely fitted with the support 100 of the optical lens 1, so as to ensure the stability of clamping and also help to reduce the shaking and displacement of the lens during clamping.

[0048] According to some embodiments of the present application, the adsorption structure includes a vacuum channel and an adsorption port 140. The vacuum channel is built-in on the support 100, and the adsorption port 140 is arranged at one end of the support 100 close to the accommodating cavity 110. The adsorption end of the adsorption port 140 is arranged on the same side of the abutting portion 130. The vacuum channel communicates with the adsorption port 140. Among them, referring to the figure, the adsorption port 140 of the present application is provided with four,

[0049] Further, as shown in the figure, the vacuum channel includes a first channel 300, a second channel 400, and a third channel 500. The first channel 300 is connected with an external vacuum generating device.

[0050] Among them, the second channel 400 and the third channel 500 both communicate with the first channel 300, or alternatively, the first channel 300, the second channel 400, and the third channel 500 communicate in sequence.

[0051] The second channel 400 is communicated with two of the four suction ports 140, the third channel 500 is communicated with the other two of the four suction ports 140, the vacuum generating device is used for generating vacuum, and the four suction ports 140 are arranged at four corners of the abutting portion 130 in a circumferential direction around an axis of the accommodating cavity 110, so as to ensure high efficiency and uniformity of vacuum suction, and also ensure that the lens is not easy to be inclined or displaced during clamping.

[0052] The optical lens 1 is stably fixed on the accommodating structure of the holder by vacuum suction to complete picking up of the optical lens 1, wherein the accommodating structure of the holder can provide a sufficient field of view angle for the FOV end of the optical lens 1 (i.e. the image acquisition end of the optical lens 1) to avoid any obstruction to the function of the lens during clamping, and meanwhile, the abutting portion 130 is tightly fitted with the support 100 of the optical lens 1 to provide stable support, and also facilitates assembly of a photosensitive sensor and the like, so that the structure is compact and the stability and accuracy of the optical lens 1 during clamping can be ensured.

[0053] In addition, the application also provides a clamping device (not shown in the figure) applying the above holder. The clamping device comprises a vacuum generator communicated with the first channel 300, and vacuum suction picking up of the holder can be realized by the vacuum generator, so that the optical lens 1 is not easy to be damaged. The clamping device can ensure the stability and accuracy of the optical lens 1 during clamping, transportation, detection or assembly by applying the holder provided by the application.

[0054] Further, the clamping device further comprises a six-axis moving mechanism (not shown in the figure), and the holder is fixed on the six-axis moving mechanism (not shown in the figure) through the mounting block 200, so that high-precision and high-efficiency transfer and assembly of the optical lens 1 can be realized by the six-axis moving mechanism (not shown in the figure).

[0055] Specifically, the mounting block 200 comprises a first connecting portion 210 and a second connecting portion 220, wherein, as shown in the figure, the first connecting portion 210 is fixedly connected with the support 100, and the second connecting portion 220 is arranged at one end of the first connecting portion 210 away from the support 100. Further, the first connecting portion 210 is hollow in structure, which can help to reduce the overall weight of the holder. Preferably, a rib plate 230 is arranged in front of the first connecting portion 210 and the support 100 to ensure the connection rigidity between the support 100 and the first connecting portion 210, so as to ensure the stability of the support 100 when picking and placing workpieces.

[0056] In addition, as shown in the figure, the second mounting portion is provided with a positioning pin 221, and the positioning connection of the holder machine table can be realized through the positioning pin 221.

[0057] Further, the second mounting portion is further provided with a connecting hole 222 with internal thread, so that the clamp can be fixedly mounted with the machine table through bolt connection, which is simple and practical in structure and reliable in connection.

[0058] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and the scope of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A holder of an optical lens, characterized in that, include: The body includes a containment structure and an adsorption structure; The accommodating structure includes an accommodating cavity (110), a clearance cavity (120), and abutting part (130). The clearance cavity (120) and the abutting part (130) are disposed opposite to each other at both ends of the accommodating cavity (110). The abutting part (130) is used to support the bracket (100) of the optical lens (1). The accommodating cavity (110) is used to place the optical lens (1). The clearance cavity (120) is used to accommodate the image acquisition end of the optical lens (1). The adsorption structure includes an adsorption port (140) disposed on the body, and the adsorption end of the adsorption port (140) is disposed on the same side as the contact portion (130).

2. The holder according to claim 1, characterized in that The clearance cavity (120) includes a first opening and a second opening connected in sequence. The first opening is disposed on the same side as the receiving cavity (110) and communicates with the receiving cavity (110). The image acquisition end of the optical lens (1) can enter the clearance cavity (120) through the first opening.

3. The holder of claim 2, wherein The diameters of the first opening and the second opening decrease in the direction away from the receiving cavity (110).

4. The holder of claim 3, wherein The cross-sectional view of the clearance cavity (120) along the axis of the receiving cavity (110) is trapezoidal.

5. The holder of claim 1, wherein The four adsorption ports (140) are circumferentially arranged at the four corners of the abutment portion (130) around the axis of the accommodating cavity (110).

6. The holder of claim 5, wherein The adsorption structure also includes a vacuum channel, which is disposed on the body and communicates with the adsorption port (140).

7. The holder of claim 6, wherein The vacuum channel includes a first channel (300), a second channel (400), and a third channel (500). The first channel (300) is connected to an external vacuum generator. The second channel (400) and the third channel (500) are both connected to the first channel (300). The second channel (400) is connected to two of the four adsorption ports (140), and the third channel (500) is connected to the other two of the four adsorption ports (140).

8. The holder of claim 6, wherein The vacuum channel includes a first channel (300), a second channel (400), and a third channel (500) connected in sequence. The first channel (300) is connected to an external vacuum generator, the second channel (400) is connected to two of the four adsorption ports (140), and the third channel (500) is connected to the other two of the four adsorption ports (140).

9. The holder of claim 1, wherein The abutment portion (130) can be completely fitted to the outer wall of the bracket (100) of the optical lens (1).

10. A clamping device, characterized in that Includes the clamp as described in any one of claims 1 to 9.

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