Novel adjustable lens and camera connecting structure

Abstract

The utility model discloses a novel adjustable lens and camera connecting structure, which comprises a fixing module, an adjusting module and a fastener, a lens connecting part, a mounting part for connecting the adjusting module and an accommodating hole part are sequentially arranged in the fixing module from left to right, the mounting part is provided with a first internal thread, the adjusting module is provided with a first external thread, and the accommodating hole part is provided with a second internal thread. The adjusting module is provided with a mounting shaft part located on the right side of the first external thread, the mounting shaft part is located in the containing hole part and corresponds to the mechanical hole shaft tolerance in a matched mode, so that the axis of the fixing module coincides with the axis of the adjusting module, and the axis deviation is smaller than or equal to 0.03 mm. The outer circumferential wall of the fixing module is provided with a through hole connected with the containing hole part in a penetrating mode. The fastener can approach or leave the mounting shaft part through the through hole, the lens connecting part is connected with an external lens, and the rear end of the adjusting module is connected with an external camera. According to the structure, the axis of the fixing module and the axis of the adjusting module can coincide and are stably connected, and the fixing module and the adjusting module are fixed through the fastener.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a novel adjustable lens and camera connection structure. Background Art

[0002] At present, the standard C-mount of industrial lenses refers to the standard distance from the contact surface between the camera and the lens to the image surface of the lens, and its standard value is 17.526mm. However, there are many companies producing industrial cameras in China, and the standard distance of 17.526mm cannot be guaranteed due to reasons such as the camera quality accuracy not meeting the standard and the camera contact surface being worn, which leads to the deviation between the best imaging working distance of the lens and the theoretical working distance.

[0003] This research and development aims to invent a new adjustable lens and camera connection structure, which connects the lens to the industrial camera and can adjust the distance from the lens image plane to the camera contact surface, thereby ensuring that the optimal imaging working distance of the lens is consistent with the theoretical working distance.

[0004] To this end, a new adjustable lens and camera connection structure is provided to connect the lens to the industrial camera and to adjust the distance from the lens image plane to the camera contact surface, thereby ensuring that the optimal imaging of the lens is consistent with the theoretical working distance. Utility Model Content

[0005] The purpose of the utility model is to provide a novel adjustable lens and camera connection structure to solve the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel adjustable lens and camera connection structure, characterized in that it comprises: a fixing module, an adjusting module and a fastener, the fixing module and the adjusting module are both hollow inside, a lens connecting portion, a mounting portion for connecting the adjusting module, and a receiving hole portion are arranged in sequence from left to right inside the fixing module, the diameter of the receiving hole portion is larger than the diameter of the mounting portion, the mounting portion is provided with a first internal thread, the front end outer wall of the adjusting module is provided with a first external thread matched and installed corresponding to the first internal thread, the adjusting module is provided with a mounting shaft portion located on the right side of the first external thread, the mounting shaft portion is located in the receiving hole portion and matches and corresponds to the mechanical hole axis tolerance, so that the axis center of the fixing module coincides with the axis center of the adjusting module, a through hole connected to the receiving hole portion is provided at a position corresponding to the receiving hole portion on the outer circumferential wall of the fixing module, the fastener is accommodated in the through hole, the fastener can approach, interfere with or move away from the mounting shaft portion through the through hole, the lens connecting portion is connected to an external lens, and the rear end of the adjusting module is connected to an external camera.

[0007] Furthermore, the fastener is a screw, a thread is provided in the through hole, the fastener is threadedly connected to the through hole, and the fastener can abut against the installation shaft.

[0008] Furthermore, the adjustment module is provided with an anti-skid structure located on the right side of the installation shaft, and the anti-skid structure is a boss.

[0009] Furthermore, the adjustment module is provided with a reserved groove, and the reserved groove is arranged between the first external thread and the installation shaft portion.

[0010] Furthermore, a mounting hole which is through-connected with the lens connecting part is provided on the outer circumferential wall of the fixing module at a position corresponding to the lens connecting part.

[0011] Furthermore, a second external thread is provided on the outer wall at the rear end of the adjustment module, the second external thread is located on the right side of the anti-slip structure, and the adjustment module is connected to the external camera through the second external thread.

[0012] Furthermore, it also includes an air avoidance groove, which is located between the adjustment module and the second external thread.

[0013] Furthermore, when the axis of the fixing module coincides with the axis of the adjusting module, the axis deviation is less than or equal to 0.03 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The structure of the utility model can adjust the distance from the lens image plane to the camera contact surface by matching the installation shaft part and the accommodating hole part, so as to keep the axis centers of the fixing module and the adjusting module coincident and stably connected. The fastener moves toward the axis center to squeeze the outer wall of the adjusting module so that the fixing module and the adjusting module are fixed, and no relative rotation and displacement are generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 The cross-section along line FF in ;

[0018] Figure 3 A three-dimensional diagram of an embodiment of the utility model;

[0019] Figure 4 It is another three-dimensional diagram of an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: a novel adjustable lens and camera connection structure is provided, characterized in that it comprises: a fixing module 1, an adjusting module 2 and a fastener 5, the fixing module 1 and the adjusting module 2 are both hollow inside, a lens connecting portion 10, a mounting portion 11 for connecting the adjusting module 2 and a receiving hole portion 12 are arranged in sequence from left to right inside the fixing module 1, the diameter of the lens connecting portion 10 is larger than the diameter of the receiving hole portion 12, the diameter of the receiving hole portion 12 is larger than the diameter of the mounting portion 11, the mounting portion 11 is provided with a first internal thread, and the outer wall of the front end of the adjusting module 2 is provided with a first external thread matching and correspondingly installed with the first internal thread The adjusting module 2 is provided with a mounting shaft 20 located on the right side of the first external thread. The mounting shaft 20 is located in the receiving hole 12 and matches the mechanical hole-axis tolerance, so that the axis of the fixing module 1 coincides with the axis of the adjusting module 2, and the axis deviation is less than or equal to 0.03mm. The outer circumferential wall of the fixing module 1 is provided with a through hole 120 connected to the receiving hole 12 at a position corresponding to the receiving hole 12. The fastener 5 is accommodated in the through hole 120. The fastener 5 can approach or move away from the mounting shaft 20 through the through hole 120. The lens connecting part 10 is connected to the external lens, and the rear end of the adjusting module 2 is connected to the external camera. After installation, the fastener 5 is in conflict with the mounting shaft 20.

[0022] The fixing module 1 is kept stationary, with the Y-axis direction being the up-down direction and the X-axis direction being the left-right direction, and the fastener 5 installed on the fixing module 1 is loosened toward the Y-axis, i.e., upward; the adjusting module 2 can be rotated by means of the anti-slip structure 21 on the outer side of the adjusting module 2, so that the adjusting module 2 can be moved forward and backward to a suitable position along the X-axis under the action of the threaded structure (the first internal thread and the first external thread), and the threaded structure is adjustable, and the fastener 5 installed on the fixing module 1 is locked toward the Y-axis, i.e., downward to lock the adjusting module 2. The adjusting module 2 has the characteristics of front-back adjustment and locking along the X-axis, and at the same time, the hole-axis matching structure (the mounting shaft portion 20 and the accommodating hole portion 12 match and correspond) can keep the axes of the fixing module 1 and the adjusting module 2 coincident and stably connected.

[0023] The fastener 5 moves toward the axis to press the outer wall of the adjusting module 2 so that the fixing module 1 and the adjusting module 2 are fixed and no relative rotation and displacement occur.

[0024] Furthermore, the adjustment module 2 is provided with an anti-slip structure 21 located on the right side of the installation shaft 20 . The anti-slip structure 21 is a boss. The boss is annular. The outer wall diameter of the annular boss is the same as the outer diameter of the fixing module 1 .

[0025] Furthermore, the fastener 5 is a screw, and the fastener 5 is a machine screw. A thread is provided in the through hole 120 , and the fastener 5 is threadedly connected to the through hole 120 , and the fastener 5 can abut against the installation shaft 20 .

[0026] Furthermore, the number of the through holes 120 is 2-8.

[0027] Furthermore, a plurality of mounting holes 100 are evenly spaced and connected to the lens connecting portion 10 on the outer circumferential wall of the fixing module 1 at positions corresponding to the lens connecting portion 10 . The mounting holes 100 are used to place screws for mounting the lens.

[0028] Furthermore, the number of the mounting holes 100 is 2-8.

[0029] Furthermore, the materials of the fixing module 1 and the adjusting module 2 are both stainless steel, aluminum alloy, magnesium-aluminum alloy, etc.

[0030] The front end of the lens connector 1 is connected to the external lens, and the rear end of the adjustment module 2 is connected to the external camera;

[0031] Furthermore, a second external thread 23 is provided on the outer wall at the rear end of the adjustment module 2. The second external thread 23 is located on the right side of the anti-slip structure 21. The adjustment module 2 is connected to the external camera via the second external thread 23. The adjustment module 2 is used to be fixed to the camera.

[0032] Furthermore, it also includes an air avoidance groove 24, which is located between the adjustment module 2 and the second external thread 23, and is used for thread air avoidance.

[0033] Further, when the axis of the fixed module 1 coincides with the axis of the adjustment module 2, the axis deviation is less than or equal to 0.03mm. Preferably, the axis deviation is 0.02mm optimal, which can keep the axis of the fixed module and the adjustment module coincident and stably connected. The precise matching of the fixed module 1 and the adjustment module 2 of the present application adopts high-precision manufacturing and assembly technology to achieve the alignment accuracy requirements of the axis in order to ensure the precise docking of the axes of the two modules. The manufacturing process of the fixed module 1 and the adjustment module 2 includes the use of precision CNC machining, laser cutting or other high-precision machining technology to ensure the dimensional accuracy of the axis. The mechanism can automatically or manually adjust the relative position of the two modules during the assembly process to ensure the precise alignment of the axis. The tolerance design of the fixed module 1 and the adjustment module 2 includes dimensional tolerance, shape tolerance and position tolerance, and these tolerances work together to achieve an axis deviation of less than or equal to 0.03mm. Of course, 0.01mm, 0.025mm or other values ​​are also within the protection scope of this solution; reaching 0.02mm or less is better.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel adjustable lens and camera connection structure, characterized in that: The invention comprises: a fixing module (1), an adjusting module (2) and a fastener (5); the fixing module (1) and the adjusting module (2) are both hollow inside; the fixing module (1) is provided with a lens connecting portion (10), a mounting portion (11) for connecting the adjusting module (2), and a receiving hole portion (12) from left to right in sequence; the diameter of the receiving hole portion (12) is larger than the diameter of the mounting portion (11); the mounting portion (11) is provided with a first internal thread; the front end outer wall of the adjusting module (2) is provided with a first external thread matched with the first internal thread; the adjusting module (2) is provided with a mounting portion located on the right side of the first external thread A shaft portion (20), the mounting shaft portion (20) is located in the accommodating hole portion (12) and is matched with the mechanical hole-shaft tolerance, so that the axis center of the fixing module (1) coincides with the axis center of the adjustment module (2), a through hole (120) is provided at a position corresponding to the accommodating hole portion (12) on the outer circumferential wall of the fixing module and connected to the accommodating hole portion (12), the through hole (120) accommodates a fastener (5), and the fastener (5) can approach, contact or move away from the mounting shaft portion (20) through the through hole (120), the lens connecting portion (10) is connected to an external lens, and the rear end of the adjustment module (2) is connected to an external camera.

2. The novel adjustable lens and camera connection structure according to claim 1, characterized in that: The fastener (5) is a screw, a thread is provided in the through hole (120), the fastener (5) is threadedly connected to the through hole (120), and the fastener (5) can abut against the mounting shaft portion (20).

3. The novel adjustable lens and camera connection structure according to claim 1 or 2, characterized in that: The adjustment module (2) is provided with an anti-slip structure (21) located on the right side of the installation shaft portion (20), and the anti-slip structure (21) is a boss.

4. The novel adjustable lens and camera connection structure according to claim 3, characterized in that: A mounting hole (100) which is connected to the lens connecting portion (10) is provided on the outer circumferential wall of the fixing module (1) at a position corresponding to the lens connecting portion (10).

5. The novel adjustable lens and camera connection structure according to claim 3 is characterized in that: A second external thread (23) is provided on the outer wall at the rear end of the adjustment module (2), the second external thread (23) is located on the right side of the anti-slip structure (21), and the adjustment module (2) is connected to an external camera via the second external thread (23).

6. The novel adjustable lens and camera connection structure according to claim 5, characterized in that: It also comprises a void avoidance groove (24), wherein the void avoidance groove (24) is located between the adjustment module (2) and the second external thread (23).

7. The novel adjustable lens and camera connection structure according to claim 1, characterized in that: When the axis of the fixed module (1) coincides with the axis of the adjustment module (2), the axis deviation is less than or equal to 0.03 mm.

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