Positioning device for optical lens processing

Abstract

The utility model relates to the field of optical lens processing, in particular to a positioning device for optical lens processing, which comprises a working table, bearing seats are arranged at the bottom of the working table, a bidirectional screw rod is arranged between the bearing seats, and a driving motor is arranged on the other side of each bearing seat; the bidirectional lead screw is sleeved with a nut pair, a supporting column is vertically installed at the top of the nut pair, a U-shaped rod is transversely inserted into the top of the supporting column, a connecting rod is arranged at the tail end of the U-shaped rod, and a positioning plate is arranged at the tail end of the connecting rod. According to the utility model, the bidirectional screw rod is driven by the driving motor, so that the positioning device can move, and then the optical part can be clamped through the positioning groove formed in the middle of the positioning plate connected with the inner side of the U-shaped rod; and then through outward extrusion of the connecting rod in the clamping process and limiting of the limiting rod on the open hole, optical lenses of different sizes can be machined, and stable positioning can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lens processing, in particular to a positioning device used for optical lens processing. Background Art

[0002] Optical lenses are essential components in machine vision systems, directly impacting image quality and the implementation and effectiveness of algorithms. Based on focal length, optical lenses can be categorized as short-focus, medium-focus, and long-focus; based on field of view, they can be classified as wide-angle, standard, and telephoto. Based on structure, they can be categorized as fixed-aperture, manual-aperture, automatic-aperture, manual-variable-focus, automatic-focus, automatic-aperture motorized, and motorized (variable aperture, focal length, and focus) lenses.

[0003] A gear-driven micromotor is added to the aperture adjustment ring of a manual aperture fixed-focus lens. A three- or four-core shielded cable is then connected from the drive circuit to the camera's auto-iris interface. As the light flux entering the lens changes, the charge generated on the camera's CCD surface changes accordingly, causing the video signal level to change. This generates a control signal, which is transmitted to the auto-iris lens, causing the motor inside the lens to rotate forward or reverse accordingly, completing the aperture adjustment task.

[0004] Existing optical lenses need to be positioned during the processing process, and the end face of the optical lens needs to be milled during the processing process. However, the existing positioning mechanism can only position optical lenses of a single size, which is not convenient for subsequent processing. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a positioning device for optical lens processing.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A positioning device for optical lens processing, comprising a workbench, a bearing seat provided at the bottom of the workbench, a bidirectional screw provided between the bearing seats, and a drive motor provided on the other side of the bearing seat;

[0008] A nut pair is sleeved on the bidirectional screw rod, and a support column is vertically installed on the top of the nut pair, a U-shaped rod is horizontally inserted on the top of the support column, and a connecting rod is provided at the end of the U-shaped rod, and a positioning plate is provided at the end of the connecting rod.

[0009] In addition, a preferred structure is that a clamping head is provided on the other side of the positioning plate, and a rotating block is provided on the top of the support column.

[0010] In addition, a preferred structure is that a socket is provided at the end of the U-shaped rod, the interior of the socket is adapted to the connecting rod, and an opening is provided at the top of the connecting rod.

[0011] In addition, a preferred structure is that a limiting hole is opened on the top of the U-shaped rod, and the limiting hole and the opening are adapted to each other, and when the connecting rod is inserted into the inside of the socket, the limiting rod is inserted into the inside of the limiting hole.

[0012] In addition, a preferred structure is that a spring is provided between the positioning plate and the end of the U-shaped rod, and the spring is sleeved on the connecting rod.

[0013] In addition, a preferred structure is that when the connecting rod is in a natural state and is located inside the insertion hole, the opening at the top of the connecting rod and the limiting hole are not located on the same vertical axis.

[0014] In addition, a preferred structure is that a slide groove is provided on the workbench, and a support column is slidably provided inside the slide groove.

[0015] The beneficial effects of the present invention are as follows: the positioning device can be moved by driving the bidirectional screw rod by the driving motor, and then the optics can be clamped by the positioning groove opened in the middle of the positioning plate connected to the inner side of the U-shaped rod, and then the connecting rod is squeezed outward during the clamping process and the opening is limited by the limiting rod, so that optical lenses of different sizes can be processed and can be stably positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a positioning device for optical lens processing proposed by the present invention;

[0017] Figure 2 A bottom view of the workbench proposed in the present invention;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the U-shaped rod proposed in the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the positioning device proposed in the present utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure of the limiting structure proposed in the utility model.

[0021] In the figure: 1. Workbench; 2. Bidirectional screw; 3. Drive motor; 4. Bearing seat; 5. Nut pair; 6. Support column; 7. U-shaped rod; 71. Limit hole; 72. Limit rod; 73. Socket; 74. Connecting rod; 75. Opening; 76. Spring; 77. Positioning plate; 78. Clamping head; 79. Rotating block; 8. Slide. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-4 A positioning device for optical lens processing includes a workbench 1, a bearing seat 4 is provided at the bottom of the workbench 1, a bidirectional screw rod 2 is provided between the bearing seats 4, and a drive motor 3 is provided on the other side of the bearing seats 4;

[0024] A nut pair 5 is sleeved on the bidirectional screw rod 2, and a support column 6 is vertically installed on the top of the nut pair 5, a U-shaped rod 7 is horizontally inserted on the top of the support column 6, and a connecting rod 74 is provided at the end of the U-shaped rod 7, and a positioning plate 77 is provided at the end of the connecting rod 74.

[0025] A clamping head 78 is provided on the other side of the positioning plate 77 , and a rotating block 79 is provided on the top of the support column 6 .

[0026] In addition, a socket 73 is formed at the end of the U-shaped rod 7 , and the interior of the socket 73 is adapted to fit with the connecting rod 74 , and an opening 75 is formed at the top of the connecting rod 74 .

[0027] In addition, a limiting hole 71 is opened on the top of the U-shaped rod 7, and the limiting hole 71 and the opening 75 are adapted to each other, and when the connecting rod 74 is inserted into the inside of the insertion hole 73, the limiting rod 72 is inserted into the inside of the limiting hole 72.

[0028] At the same time, a spring 76 is provided between the positioning plate 77 and the end of the U-shaped rod 7 , and the spring 76 is sleeved on the connecting rod 74 .

[0029] Moreover, when the connecting rod 74 is in a natural state and is inside the socket 73, the opening 75 at the top of the connecting rod 74 and the limiting hole 71 are not on the same axis, a slide groove 8 is provided on the workbench 1, and a support column 6 is slidingly provided inside the slide groove 8.

[0030] In this embodiment, it is first necessary to adjust the relative distance of the positioning device on the top of the workbench 1 according to the actual processing size of the optical lens to ensure the processing of the optical lens.

[0031] First, the driving motor 3 on both sides of the bearing seat 4 is used to drive the bidirectional screw rod 2 between the bearing seats 4 to rotate. And because it is a bidirectional screw rod 2, after the bidirectional screw rod 2 is rotated, the nut pair 5 on the bidirectional screw rod 2 will also move according to the rotation direction of the bidirectional screw rod 2.

[0032] When the nut pair 5 moves through the bidirectional screw rod 2, the support column 6 on the nut pair 5 will also move synchronously in the slide groove 8. At this time, the optical lens to be processed is placed between the clamping heads 78 set in the middle of the positioning plates 77 on both sides. Since the material of the clamping heads 78 is rubber material, the side edges of the optical lens will not be squeezed and damaged. On the contrary, if the size is too large, the connecting rods 74 on both sides will be squeezed into the inside of the socket 73, and the restoring force of the spring 76 will provide certain support to the positioning plate 77.

[0033] Then, when a larger optical lens needs to be processed, the optical lens is also placed on the inner side of the positioning groove 78 opened in the middle of the positioning plate 77. Since the size of the optical lens processed this time is larger, the connecting rod 74 on the back of the positioning plate 77 will be stuck deeper into the inside of the socket 73. At this time, the supporting force of the spring 76 on the positioning plate 77 is flexible support, which may make the clamping unstable. At this time, the limiting rod 72 is inserted into the limiting hole 71 opened at the top of the U-shaped rod 7, and the limiting rod 72 can simultaneously penetrate the opening 75 opened on the connecting rod 74 while passing through the limiting hole 71, so that the connecting rod 74 can be well limited, so that the optical lens can be more stable when end face milling is performed.

[0034] In the present invention, the positioning device can be moved by driving the bidirectional screw rod 2 through the driving motor 3, and then the optical lens can be clamped through the positioning groove 78 opened in the middle of the positioning plate 77 connected to the inner side of the U-shaped rod 7, and then the optical lens can be processed by squeezing the connecting rod 74 outward and limiting the opening 75 by the limiting rod 72 during the clamping process, and the optical lens can be stably positioned.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning device for optical lens processing, comprising a workbench (1), characterized in that: A bearing seat (4) is provided at the bottom of the workbench (1), a bidirectional screw rod (2) is provided between the bearing seats (4), and a drive motor (3) is provided on the other side of the bearing seat (4); The bidirectional screw rod (2) is sleeved with a nut pair (5), and a support column (6) is vertically installed on the top of the nut pair (5), a U-shaped rod (7) is horizontally inserted on the top of the support column (6), and a connecting rod (74) is provided at the end of the U-shaped rod (7), and a positioning plate (77) is provided at the end of the connecting rod (74).

2. A positioning device for optical lens processing according to claim 1, characterized in that: A clamping head (78) is provided on the other side of the positioning plate (77), and a rotating block (79) is provided on the top of the support column (6).

3. The positioning device for optical lens processing according to claim 1, characterized in that: The end of the U-shaped rod (7) is provided with a socket (73), the interior of the socket (73) and the connecting rod (74) are adapted to each other, and the top of the connecting rod (74) is provided with an opening (75).

4. The positioning device for optical lens processing according to claim 1, characterized in that: A limiting hole (71) is provided on the top of the U-shaped rod (7), and the limiting hole (71) and the opening (75) are adapted to each other, and when the connecting rod (74) is inserted into the inside of the insertion hole (73), the limiting rod (72) is inserted into the inside of the limiting hole (71).

5. The positioning device for optical lens processing according to claim 1, characterized in that: A spring (76) is provided between the positioning plate (77) and the end of the U-shaped rod (7), and the spring (76) is sleeved on the connecting rod (74).

6. The positioning device for optical lens processing according to claim 1, characterized in that: When the connecting rod (74) is in a natural state and is located inside the insertion hole (73), the opening (75) at the top of the connecting rod (74) and the limiting hole (71) are not located on the same vertical axis.

7. The positioning device for optical lens processing according to claim 1, characterized in that: A slide groove (8) is provided on the workbench (1), and a support column (6) is slidably provided inside the slide groove (8).

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