Semi-automatic lens assembling machine capable of adjusting lens height

Abstract

The utility model discloses a semi-automatic lens assembling machine capable of adjusting the height of a lens, and belongs to the technical field of optical lens assembling. Comprising a semi-automatic lens assembling machine table top, a lens bearing table, a special suction head for sucking lenses to be assembled and a pneumatic device, the lens bearing table comprises a movable table, a lens assembling table and a movable table fixing ring, and the pneumatic device is connected with the lenses to be assembled and sucked to the special suction head. A to-be-assembled lens is adsorbed to the bottom of the special suction head to be in contact connection with a to-be-assembled lens, the upper portion of the lens assembly receiving table is sequentially connected with the movable receiving table fixing ring and the movable receiving table through external threads, the bottom of the lens assembly receiving table is connected with the table top of the semi-automatic lens assembly machine through external threads, and the top of the movable receiving table is connected with a to-be-assembled lens barrel. A lens to be assembled is placed on the top of the lens bearing platform. The height of the lens assembled in the lens cone is directly controlled by adjusting the height of the movable receiving table, so that an air gap is obtained. And the thickness of the lens does not need to be measured manually.

Description

Technical Field

[0001] The utility model relates to a semi-automatic lens assembly machine with adjustable lens height, belonging to the technical field of optical lens assembly. Background Art

[0002] In the existing lens manufacturing, there are the effects of the air space between lenses: changes in OTF curve, changes in spherical aberration and astigmatism, and the effects of reflection and refraction.

[0003] OTF curve changes: Changes in the size, length, and position of the air gap will directly affect the propagation law of light, including transmission and reflection, thereby causing changes in the MTF and OTF curves in optical imaging.

[0004] Changes in spherical aberration and astigmatism: Spherical aberration and astigmatism are two relatively important errors in optical imaging. The existence of air gap will have a certain impact on spherical aberration and astigmatism, resulting in certain aberrations in optical imaging.

[0005] Influence of reflection and refraction: The presence of air gaps will cause changes in the direction of light emission, reflection and refraction, thereby affecting the quality of light transmission and imaging.

[0006] In the existing lens manufacturing, the requirements for the use environment and imaging of the lens are getting higher and higher. Therefore, the accuracy of lens assembly in the lens is also getting higher and higher. One of the factors that has a greater impact on the accuracy in lens assembly is the air gap of the lens. If you want to accurately control this air gap, you need to control the assembly height of the lens. Because the processing of lenses has limitations, it cannot be guaranteed that the thickness of each lens is consistent. Therefore, in order to control the air gap, the lenses will be assembled in pairs. However, this processing method requires manual measurement of the thickness of each lens, which is more consuming processing costs and processing time. Utility Model Content

[0007] A semi-automatic lens assembly machine with adjustable lens height solves the technical problems in the prior art that various air intervals are difficult to control and the production cost is high due to various special lens fixtures.

[0008] The existing technical problems are solved by the following technical solutions: a semi-automatic lens assembly machine with adjustable lens height, characterized in that it includes a semi-automatic lens assembly machine table, a lens carrying and receiving table, a special suction head for adsorbing the lens to be assembled and a pneumatic device, the lens carrying and receiving table includes a movable receiving table, a lens assembly receiving table and a movable receiving table fixing ring, the pneumatic device connects the lens to be assembled to be adsorbed to the special suction head, the bottom of the lens to be assembled is adsorbed to the special suction head and contacts and connects the lens to be assembled, the upper part of the lens assembly receiving table is connected to the movable receiving table fixing ring and the movable receiving table in sequence through external threads, the bottom of the lens assembly receiving table is connected to the semi-automatic lens assembly machine table through external threads, the top of the movable receiving table is connected to the lens barrel to be assembled, and the lens to be assembled is placed on the top of the lens carrying and receiving table.

[0009] The movable receiving stage and the lens barrel to be assembled are connected to each other in the vertical direction and the horizontal direction respectively in the form of shaft holes, and the interior of the lens barrel to be assembled and the lens to be assembled are matched to each other in the horizontal direction in the form of shaft holes.

[0010] The utility model has the advantages of: solving the problem that the assembly height of a lens with high sensitivity cannot be accurately controlled during lens assembly. Solving the problem that the air interval between two lenses cannot be accurately controlled during lens assembly. Saving the measurement time wasted in the production process for controlling the lens assembly height or the lens assembly air interval. Further reducing the processing difficulty of the thickness and height of the lens processing, relaxing the processing tolerance, and canceling the paired assembly of the lens. Thereby effectively reducing the cost of lens processing.

[0011] The movable receiving platform in the jig is used to carry the lens barrel to be assembled. The height of the movable receiving platform can be adjusted. By adjusting this height, the height of the lens barrel 8 to be assembled is indirectly changed. However, this height cannot be changed during assembly, so the movable lens barrel fixing ring can lock the height by thread fixing before assembly. The lens assembly receiving platform is used to carry the lens to be assembled, and this height is fixed. In other words, we indirectly adjusted the assembly height of the lens barrel to be assembled, so that after the lens to be assembled is assembled to the lens barrel, the two become a fixed match.

[0012] Even if the thickness of the processed lenses is different, the height of the lens assembled into the lens barrel can be directly controlled by adjusting the height of the moving receiving platform to obtain an air gap. There is no need to manually measure the thickness of the lens, and large quantities of lenses can be selected and paired for assembly, which greatly saves measurement time, selection time and assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the figure:

[0014] Figure 1 This is a structural schematic diagram provided by the utility model.

[0015] Figure 2 This is a schematic diagram of the lens barrel structure to be assembled.

[0016] Figure 3 It is a schematic diagram of the structure of the lens to be assembled.

[0017] Figure 4 It is a schematic diagram of the utility model when in operation. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a semi-automatic lens assembly machine with adjustable lens height includes a semi-automatic lens assembly machine table 4, a lens bearing receiving platform 5, a lens to be assembled adsorbed to a special suction head 6 and a pneumatic device 7, the lens bearing receiving platform 5 includes a movable receiving platform 1, a lens assembly receiving platform 2 and a movable receiving platform fixing ring 3, the pneumatic device 7 connects the lens to be assembled to be adsorbed to the special suction head 6, the bottom of the lens to be assembled adsorbed to the special suction head 6 contacts and connects to the lens to be assembled 9, the upper part of the lens assembly receiving platform 2 is connected to the movable receiving platform fixing ring 3 and the movable receiving platform 1 in sequence through external threads, the bottom of the lens assembly receiving platform 2 is connected to the semi-automatic lens assembly machine table 4 through external threads, the top of the movable receiving platform 1 is connected to the lens barrel 8 to be assembled, and the lens to be assembled 9 is placed on the top of the lens bearing receiving platform 5.

[0020] Example 2: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a semi-automatic lens assembly machine with adjustable lens height, the lens assembly receiving platform 2 is connected with the movable receiving platform fixing ring 3 through its own thread, and is also connected with the movable receiving platform 1 through its own thread. During use, the lens assembly receiving platform 2 is connected with the automatic assembly machine table 4 through its own thread in the lower part of the jig. In the upper part of the jig, the lens assembly receiving platform 2 contacts and cooperates with the lens to be assembled 9 in the vertical direction, and plays a role in limiting the lens to be assembled 9 in the vertical direction. The movable receiving platform 1 is connected to the lens barrel 8 to be assembled in the vertical direction and the horizontal direction respectively in the form of shaft holes. The interior of the lens barrel 8 to be assembled and the lens to be assembled 9 are matched with each other in the horizontal direction in the form of shaft holes.

[0021] The lens assembly receiving platform 2 is connected to one side of the semi-automatic lens assembly machine table 4 through the thread. The lens barrel 8 to be assembled can be mounted on the movable receiving platform 1; the lens 9 to be assembled can be placed on the lower lens receiving platform 5 of the assembly machine, and the pneumatic device 7 adsorbs the lens to be assembled onto the special suction head 6. The driving device 4 is used to move the lens assembly receiving platform from the left side of the assembly machine table 4 to the right side directly below the suction head and the lens 9. The pneumatic device 7 then presses the adsorbed lens into the lens barrel 8 to be assembled after the height is adjusted.

[0022] When the height of the lens assembly receiving platform 2 is the same as that of the lens bearing receiving platform 5, the assembly height can be more accurate. When the thread matching amount between the moving receiving platform 1 and the lens assembly receiving platform 2 is as small as possible, the parallelism of the assembled lens is better. Generally, in order to ensure the normal rotation of the thread, the clearance is set to be within 0.02mm.

[0023] Example 3: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a semi-automatic lens assembly machine with adjustable lens height includes a base body of a table-shaped structure, the base body includes a lens assembly receiving platform, a movable receiving platform fixing ring and a lens barrel movable receiving platform that are mutually connected. The lens assembly receiving platform is installed on the table of the semi-automatic assembly machine through the threaded hole of the lens assembly receiving platform, and the lens barrel to be assembled can be mounted on the lens movable receiving platform; the lens to be assembled can be placed on the lower lens receiving platform of the assembly machine, and the pneumatic device adsorbs the lens to be assembled onto a special suction head, and the driving device is used to move the lens assembly receiving platform to the position directly below the suction head and the lens.

[0024] The movable receiving platform in the fixture is used to carry the lens barrel to be assembled. The height of the movable receiving platform can be adjusted through the thread. By adjusting this height, the height of the lens barrel to be assembled is indirectly changed. However, this height cannot be changed during assembly, so the movable lens barrel fixing ring can lock the height by fixing it with the thread before assembly. The lens assembly receiving platform is used to carry the lens to be assembled, and this height is fixed. By indirectly adjusting the assembly height of the lens barrel to be assembled, the lens to be assembled is assembled into the lens barrel, and the two become a desired fixed combination.

[0025] It can be seen from the technical solution provided by the above-mentioned embodiment of the utility model that this fixture can ensure that even if the thickness of the processed lenses is different, the height of the lenses assembled into the lens barrel can be directly controlled by adjusting the height of the movable receiving platform, thereby obtaining an air gap. There is no need to manually measure the thickness of the lenses, and to select and assemble a large number of lenses, which greatly saves the measurement time, selection time and assembly time.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-automatic lens assembly machine with adjustable lens height, characterized in that: It includes a semi-automatic lens assembly machine table, a lens carrying and receiving table, a special suction head for adsorbing lenses to be assembled, and a pneumatic device. The lens carrying and receiving table includes a mobile receiving table, a lens assembly receiving table, and a mobile receiving table fixing ring. The pneumatic device connects the lenses to be assembled and adsorbs them to the special suction head. The lenses to be assembled are adsorbed to the bottom of the special suction head to contact and connect with the lenses to be assembled. The upper part of the lens assembly receiving table is connected to the mobile receiving table fixing ring and the mobile receiving table in sequence through external threads. The bottom of the lens assembly receiving table is connected to the semi-automatic lens assembly machine table through external threads. The top of the mobile receiving table is connected to the lens barrel to be assembled. The lenses to be assembled are placed on the top of the lens carrying and receiving table.

2. A semi-automatic lens assembly machine with adjustable lens height according to claim 1, characterized in that: The movable receiving stage and the lens barrel to be assembled are connected to each other in the vertical direction and the horizontal direction respectively in the form of shaft holes, and the interior of the lens barrel to be assembled and the lens to be assembled are matched to each other in the horizontal direction in the form of shaft holes.

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