Switching device suitable for industrial camera

Abstract

The utility model relates to the technical field of optical machinery, and discloses a switching device suitable for an industrial camera, and the switching device comprises an external switching sleeve and an interface used for installing the industrial camera, and the interface is provided with an assembly space extending inwards; the adjusting assembly is arranged in the assembling space of the interface and is in threaded connection with the external adapter sleeve, the adjusting assembly is provided with an optical channel, and the light inlet end of the optical channel is used for being connected with a lens; and the adjusting assembly is used for finely adjusting the lens to axially move along the optical channel, so that the light collected by the lens is focused and projected to a photosensitive element of the industrial camera. According to the invention, the requirements of installation and precise focusing of the short-focus lens and the industrial camera can be realized without dismounting the camera interface, and the installation is convenient, rapid, simple and reliable.

Description

Technical Field

[0001] The present application relates to the field of optical mechanical technology, and more specifically, to a switching device suitable for industrial cameras. Background Art

[0002] An adjustable lens sleeve is a device used for optical experiments and focusing. It usually consists of a lens and an adjustable lens barrel. When using an adjustable lens sleeve, the focusing effect of light can be adjusted by rotating or moving the lens. By changing the distance between the lens and the object or image, the refraction angle and focal point position of the light can be changed, thereby achieving precise control and adjustment of the light.

[0003] In the relevant technical means, industrial cameras generally provide standard interfaces for lens connection, such as C interface, CS interface, F interface, etc. Different types of interfaces not only specify the thread size, but also require the distance from the installation reference plane to the focal plane. For example, the distance from the installation reference plane to the focal plane of the C-type interface is strictly specified as 17.526mm, and the distance from the installation reference plane to the focal plane of the CS-type interface is 12.5mm. When a short focal length lens is installed on the industrial camera interface, the long axial distance of the interface itself will limit the installation and adjustment space of the short focal length lens, so that the short focal length lens can only be adjusted on the interface thread size, and the industrial camera cannot fully meet the adjustment requirements of the corresponding functions such as observation and measurement when in use; secondly, the interface thread pitch that is too large is not suitable for the precise focusing of the short focal length lens. For example, the C-interface thread pitch is approximately equal to 0.75mm, which does not meet the precise focusing requirements of the short focal length lens. Therefore, it is difficult to achieve the precise adjustment requirements of the short focal length lens by simply using the adjustment structure of the camera and interface thread.

[0004] With regard to the above-mentioned related technical means, there is a defect that it is difficult to achieve precise focusing requirements when a short focal length lens is installed on a standard industrial camera interface. Utility Model Content

[0005] The embodiment of the present application provides an adapter device suitable for an industrial camera, which can achieve the requirement of precise focusing between a short focal length lens and a standard industrial camera without disassembling the standard interface of the camera.

[0006] The present application provides a switching device suitable for industrial cameras using the following technical solutions:

[0007] A switching device suitable for an industrial camera, comprising:

[0008] An external adapter sleeve, used for being mounted on an interface of an industrial camera, wherein the interface has an assembly space extending inwardly;

[0009] An adjustment component is arranged in the assembly space of the interface and is threadedly connected to the external adapter sleeve. The adjustment component has an optical channel, and the light input end of the optical channel is used to connect a lens. The adjustment component is used to fine-tune the axial movement of the lens along the optical channel so that the light collected by the lens is focused and projected onto the photosensitive element of the industrial camera.

[0010] Optionally, the adjustment assembly includes an adjustment base and an adjustment sleeve;

[0011] The adjusting base is threadedly connected to the external adapter sleeve and can move along the axial direction of the external adapter sleeve; one end of the adjusting sleeve is threadedly connected to the adjusting base, and the adjusting sleeve can move along the axial direction of the adjusting base;

[0012] The optical channel is provided on the same axial direction of the adjustment base and the adjustment sleeve, and the other end of the adjustment sleeve forms a light-incoming end of the optical channel.

[0013] Optionally, the external adapter sleeve penetrates into the assembly space of the interface and is provided with a first internal thread at the end; the adjustment base has a first connecting portion, and the outer wall of the first connecting portion is provided with a first external thread that matches the first internal thread.

[0014] Optionally, the adjustment base has a second connecting portion, and the second connecting portion and the first connecting portion belong to the outer walls at both ends of the adjustment base; the second connecting portion is provided with a second external thread, and the inner wall of the end of the adjustment sleeve not connected to the lens is provided with a second internal thread matching the second external thread.

[0015] Optionally, the first external thread and the second external thread are both fine pitch external threads.

[0016] Optionally, a first mounting cavity is formed between the second connecting portion and the external adapter sleeve, and the end of the adjustment sleeve not connected to the lens extends into the first mounting cavity and is threadedly connected to the adjustment base via the second connecting portion.

[0017] Optionally, the external adapter sleeve has a first flange, and the first flange is used to abut against the outside of the interface and limit the penetration distance of the external adapter sleeve in the assembly space of the interface.

[0018] Optionally, it also includes a locking piece, which has a second flange and a connecting end; a second installation cavity is formed between the adjusting sleeve and the external adapter sleeve, the connecting end penetrates into the second installation cavity and is threadedly connected to the adjusting sleeve, and the second flange is used to abut against the first flange and lock the threaded gap between the connecting end and the adjusting sleeve.

[0019] Optionally, the first flange and the second flange are both provided with a groove, and the groove is used to enable the first flange and / or the second flange to rotate when a tool is inserted into the groove.

[0020] Optionally, the central axis of the external adapter sleeve, the central axis of the adjustment base, and the central axis of the adjustment sleeve all coincide with the central axis of the lens.

[0021] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0022] 1. According to the focusing requirements, the position of the adjustment base relative to the external adapter sleeve and the position of the adjustment sleeve relative to the adjustment base are selectively adjusted, thereby changing the distance between the lens and the photosensitive element of the industrial camera to meet the corresponding functions such as observation or measurement, and realizing the precise focusing requirements between the short focal length lens and the standard industrial camera; the embodiment of the present application does not need to disassemble the standard interface of the camera, the operation is convenient and fast, and the structure adopts a threaded connection that is simple and reliable.

[0023] 2. After the lens is adjusted, the locking piece is inserted, and the locking piece is threaded with the adjustment sleeve to eliminate the gap between the locking piece and the adjustment sleeve. The force makes the threaded connection between the adjustment sleeve and the adjustment base more stable and not easy to fall off. The inward-extending locking piece can still perform structural locking when the lens is completely immersed in the interface. In addition, the second flange contacts and presses the first flange of the external adapter sleeve. The pressing force will make the threads between the locking piece and the adjustment sleeve, and between the adjustment sleeve and the adjustment base in an axially tight state, thereby preventing the threaded connection from loosening and ensuring a certain degree of connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a switching device applicable to an industrial camera disclosed in an embodiment of the present application;

[0025] Figure 2 An exploded diagram of the structure of a switching device applicable to an industrial camera disclosed in an embodiment of the present application;

[0026] Figure 3 A cross-sectional view of an adapter device suitable for an industrial camera disclosed in an embodiment of the present application.

[0027] Description of reference numerals:

[0028] 1. External adapter sleeve; 11. First flange; 12. Mounting part; 2. Adjustment base; 21. First connecting part; 22. Second connecting part; 3. First mounting cavity; 4. Second mounting cavity; 5. Adjustment sleeve; 6. Locking piece; 61. Second flange; 62. Connecting end; 7. Groove. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] An embodiment of the present application provides a switching device suitable for an industrial camera.

[0031] See also Figures 1 to 3 In an embodiment of the present application, an adapter device suitable for an industrial camera includes an external adapter sleeve 1, an adjustment component and a locking piece 6. The external adapter sleeve 1 is used to be installed on an interface of the industrial camera, and the interface has an assembly space extending inward; the adjustment component is arranged in the assembly space of the interface, and the adjustment component is threadedly connected to the external adapter sleeve 1. The adjustment component has an optical channel, and the light input end of the optical channel is used to connect the lens. The adjustment component is used to fine-tune the axial movement of the lens along the optical channel so that the light collected by the lens is focused and projected onto the photosensitive element of the industrial camera; the locking piece 6 is located between the adjustment component and the external adapter sleeve 1 and is used to fix the overall structure after focusing.

[0032] According to the adjustment requirements, the position of the adjustment component on the external adapter sleeve 1 is adjusted by rotating the adjustment component, and then the distance between the lens and the photosensitive element of the industrial camera is changed, so that the light collected by the lens is focused and projected onto the photosensitive element of the industrial camera, thereby achieving the precise focusing requirements between the short focal length lens and the standard industrial camera, and meeting the corresponding functions such as observation or measurement.

[0033] See also Figure 2 and Figure 3 The external adapter sleeve 1 has a first flange 11 and a mounting portion 12, and the first flange 11 and the mounting portion 12 are integrally formed. The first flange 11 is used to abut against the outside of the interface, and the outer diameter of the first flange 11 is larger than the inner diameter of the interface, which is used to limit the penetration distance of the external adapter sleeve 1 in the assembly space of the interface. The external adapter sleeve 1 is positioned and locked by the first flange 11, which is convenient for ensuring the installation stability of the subsequent adjustment assembly.

[0034] The mounting portion 12 is inserted into the assembly space of the interface and is placed near the photosensitive element of the industrial camera. In this embodiment, the mounting portion 12 is connected to the interface by threads, which facilitates the quick installation and removal of the adapter device and the interface. Specifically, the inner wall of the interface is provided with a third internal thread, the outer wall of the mounting portion 12 is provided with a third external thread matching the third internal thread, and the external adapter sleeve 1 is threadedly connected to the interface by the third internal thread and the third external thread.

[0035] The adjustment assembly includes an adjustment base 2 and an adjustment sleeve 5. The adjustment base 2 is screwed to the external adapter sleeve 1 and can move along the axial direction of the external adapter sleeve 1. One end of the adjustment sleeve 5 is screwed to the adjustment base 2, and the adjustment sleeve 5 can move along the axial direction of the adjustment base 2. The adjustment base 2 and the adjustment sleeve 5 are provided with an optical channel in the same axial direction, and the end of the adjustment sleeve 5 not connected to the adjustment base 2 forms the light-incoming end of the optical channel, that is, the end of the adjustment sleeve 5 not connected to the adjustment base 2 is connected to the lens. The central axis of the external adapter sleeve 1, the central axis of the adjustment base 2, and the central axis of the adjustment sleeve 5 all coincide with the central axis of the lens.

[0036] By adjusting the axial movement of the adjustment base 2 along the external adapter sleeve 1, the position of the adjustment base 2 relative to the external adapter sleeve 1 can be adjusted. By adjusting the axial movement of the adjustment sleeve 5 along the adjustment base 2, the position of the sleeve 5 relative to the adjustment base 2 can be adjusted. Through multi-stage adjustment of the external adapter sleeve 1, the adjustment base 2 and the adjustment sleeve 5, the precision focusing requirements between the short focal length lens and the standard industrial camera are further realized, and the adapter device is completely threaded. The structure is simple and reliable.

[0037] The adjustment base 2 has a first connection portion 21 and a second connection portion 22. The first connection portion 21 and the second connection portion 22 belong to the outer walls at both ends of the adjustment base 2. The first connection portion 21 is connected to the external adapter sleeve 1, and the second connection portion 22 is connected to the adjustment sleeve 5. The cross-section of the adjustment base 2 parallel to the axis is "L"-shaped. Specifically, the external adapter sleeve 1 penetrates into the assembly space of the interface and is provided with a first internal thread at the end. The first connection portion 21 is provided with a first external thread that matches the first internal thread. In this embodiment, the first internal thread is located on the inner wall of the mounting portion 12 in the external adapter sleeve 1, and is used to connect the adjustment base 2, placing the adjustment base 2 at the deepest part inside the interface, providing an axial space for lens installation and adjustment. The first external thread is a fine-pitch external thread, which is used to precisely adjust the adjustment base 2 along the axial direction of the external adapter sleeve 1.

[0038] A first installation cavity 3 is formed between the second connection portion 22 and the external adapter sleeve 1, and the end of the adjustment sleeve 5 not connected to the lens is inserted into the first installation cavity 3 and connected to the adjustment base 2 via the second connection portion 22. Specifically, the second connection portion 22 is provided with a second external thread, and the inner wall of the end of the adjustment sleeve 5 not connected to the lens is provided with a second internal thread matching the second external thread, and the second external thread is a fine pitch external thread, which is used to precisely adjust the adjustment sleeve 5 along the axial direction of the adjustment base 2, thereby fine-tuning the lens.

[0039] See also Figure 3The locking member 6 has a second flange 61 and a connecting end 62. A second mounting cavity 4 is formed between the adjusting sleeve 5 and the external adapter sleeve 1. The connecting end 62 penetrates into the second mounting cavity 4 and is threadedly connected to the adjusting sleeve 5. The second flange 61 is used to abut against the first flange 11 and lock the thread gap between the connecting end 62 and the adjusting sleeve 5.

[0040] Specifically, the outer wall of the adjusting sleeve 5 is provided with an external thread, and the connecting end 62 is provided with an internal thread adapted to the external thread. The connecting end 62 of the locking member 6 is screwed with the adjusting sleeve 5 through the internal thread and the external thread. The connecting end 62 penetrates into the second mounting cavity 4 so that the structure can still be locked when the lens is trapped in the assembly space of the interface. In this embodiment, the lens is inserted into the locking member 6 after the adjustment of the adjustment assembly is completed. The locking member 6 is screwed with the adjusting sleeve 5 to eliminate the gap between the locking member 6 and the adjusting sleeve 5. The locking member 6 exerts a force on the adjusting sleeve 5 in the circumferential direction, thereby making the threaded connection between the adjusting sleeve 5 and the adjusting base 2 more stable and not easy to fall off. In addition, the second flange 61 abuts against the first flange 11, and the pressing force of the second flange 61 will lock the thread gap between the locking member 6 and the adjusting sleeve 5, so that the thread between the adjusting sleeve 5 and the adjusting base 2 is in an axially tight state, thereby avoiding loosening of the threaded connection and ensuring the connection stability between the components.

[0041] See also Figure 2 , the first flange 11 and the second flange 61 are both provided with a groove 7, the groove 7 is located at the end surface of the first flange 11 or the second flange 61 away from the interface, and the groove 7 is used to enable the first flange 11 and / or the second flange 61 to rotate when a tool is inserted. In this embodiment, the end surface of the adjustment sleeve 5 facing the second connecting portion 22 and the end surface of the first connecting portion 21 facing the industrial camera are also provided with a groove 7. Since the volume of each component is small, the groove 7 facilitates the insertion of the tool and makes it easier to apply rotational force to each component, thereby tightening the adapter.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same reference numerals. It should be noted that the terms "inside" and "outside" used in the above description refer to the direction toward or away from the geometric center of a specific component, respectively. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A switching device suitable for an industrial camera, characterized in that: include: An external adapter sleeve (1) is used for being installed on an interface of an industrial camera, wherein the interface has an assembly space extending inwards; An adjustment component is arranged in the assembly space of the interface and is threadedly connected to the external adapter sleeve (1), wherein the adjustment component has an optical channel, and the light-inlet end of the optical channel is used to connect a lens; the adjustment component is used to fine-tune the axial movement of the lens along the optical channel so that the light collected by the lens is focused and projected onto the photosensitive element of the industrial camera.

2. The adapter device suitable for industrial cameras according to claim 1, characterized in that: The adjustment assembly comprises an adjustment base (2) and an adjustment sleeve (5); The adjustment base (2) is threadedly connected to the external adapter sleeve (1) and is movable along the axial direction of the external adapter sleeve (1); one end of the adjustment sleeve (5) is threadedly connected to the adjustment base (2), and the adjustment sleeve (5) is movable along the axial direction of the adjustment base (2); The adjustment base (2) and the adjustment sleeve (5) are provided with the optical channel in the same axial direction, and the other end of the adjustment sleeve (5) forms a light-incoming end of the optical channel.

3. The adapter device suitable for industrial cameras according to claim 2, characterized in that: The external adapter sleeve (1) penetrates into the assembly space of the interface and is provided with a first internal thread at the end; the adjustment base (2) has a first connecting portion (21), and the first connecting portion (21) is provided with a first external thread that matches the first internal thread.

4. The adapter device suitable for industrial cameras according to claim 3, characterized in that: The adjustment base (2) has a second connecting portion (22), and the second connecting portion (22) and the first connecting portion (21) belong to the outer walls at both ends of the adjustment base (2); the second connecting portion (22) is provided with a second external thread, and the inner wall of the end of the adjustment sleeve (5) not connected to the lens is provided with a second internal thread matching the second external thread.

5. The adapter device suitable for industrial cameras according to claim 4, characterized in that: The first external thread and the second external thread are both fine pitch external threads.

6. The adapter device suitable for industrial cameras according to claim 4, characterized in that: A first mounting cavity (3) is formed between the second connecting portion (22) and the external adapter sleeve (1); the end of the adjusting sleeve (5) not connected to the lens is inserted into the first mounting cavity (3) and is threadedly connected to the adjusting base (2) via the second connecting portion (22).

7. The adapter device suitable for industrial cameras according to claim 2, characterized in that: The external adapter sleeve (1) has a first flange (11), and the first flange (11) is used to abut against the outside of the interface and limit the penetration distance of the external adapter sleeve (1) in the assembly space of the interface.

8. The adapter device suitable for industrial cameras according to claim 7, characterized in that: The invention also comprises a locking member (6), wherein the locking member (6) has a second flange (61) and a connecting end (62); a second installation cavity (4) is formed between the adjusting sleeve (5) and the external adapter sleeve (1); the connecting end (62) penetrates into the second installation cavity (4) and is threadedly connected to the adjusting sleeve (5); the second flange (61) is used to abut against the first flange (11) and lock the thread gap between the connecting end (62) and the adjusting sleeve (5).

9. The adapter device suitable for industrial cameras according to claim 8, characterized in that: The first flange (11) and the second flange (61) are both provided with a groove (7), and the groove (7) is used to enable the first flange (11) and / or the second flange (61) to rotate when a tool is inserted into the groove (7).

10. The adapter device suitable for industrial cameras according to claim 2, characterized in that: The central axis of the external adapter sleeve (1), the central axis of the adjustment base (2) and the central axis of the adjustment sleeve (5) all coincide with the central axis of the lens.

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