Front cover assembly, industrial camera and visual equipment

Abstract

The utility model discloses a front cover assembly, industrial camera and visual equipment, including a front cover body, a light-transmitting sheet and a pressing member, a light-transmitting channel with a lens opening is formed on the front cover body, the lens opening is located at the front end of the front cover body, the light-transmitting sheet and the pressing member are arranged in the light-transmitting channel, and the pressing member is located at the front end of the front cover body. A distance used for containing a lens assembly is formed between the light-transmitting piece and the front end face of the front cover body, the pressing piece is located on the outer side of the light-transmitting piece and is provided with a light-transmitting opening communicated with the light-transmitting channel, external threads are formed on the side wall of the pressing piece, internal threads matched with the external threads are formed on the inner side wall of the front cover body, and the pressing piece is located on the outer side of the light-transmitting piece. The front cover body is provided with a lens opening, the front cover body is provided with a pressing piece, the pressing piece is in threaded fit with the front cover body, the inner side of the pressing piece abuts against the outer surface of the light-transmitting piece, at least one operation part is formed on the end face, facing the lens opening, of the pressing piece, and the operation part is used for being matched with a tool so as to drive the pressing piece to rotate through the tool. According to the utility model, the assembling and disassembling efficiency of the light-transmitting sheet can be improved.

Description

Technical Field

[0001] This utility model relates to the field of machine vision technology, specifically to a front cover assembly with an easily replaceable light-transmitting sheet, an industrial camera, and a vision device. Background Technology

[0002] With the development of technology, image data has become an important source of information, and image acquisition equipment used to collect image data is widely used in various fields such as industrial logistics, autonomous driving, and intelligent robots.

[0003] Industrial cameras are commonly used devices for image data acquisition. Industrial cameras generally include filters to improve image quality. In actual use, filters are easily worn and need to be replaced frequently to ensure image quality.

[0004] The filters in existing industrial cameras are inconvenient to remove and replace after installation, which affects work efficiency. Utility Model Content

[0005] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides a front cover assembly, an industrial camera, and a vision device, which has the advantage of easy installation and removal of the light-transmitting sheet.

[0006] To achieve the above objectives, a first aspect of this utility model discloses a front cover assembly, including a front cover body, a light-transmitting sheet, and a clamping member. The front cover body has a light-transmitting channel with a lens aperture located at the front end of the front cover body. The light-transmitting sheet and the clamping member are disposed within the light-transmitting channel. The light-transmitting sheet and the front end face of the front cover body form a gap for accommodating the lens assembly. The clamping member is located outside the light-transmitting sheet and has a light-transmitting opening communicating with the light-transmitting channel.

[0007] The clamping member has an external thread on its sidewall, and the front cover body has an internal thread that mates with the external thread on its inner sidewall. The clamping member is threadedly engaged with the front cover body. The inner side of the clamping member abuts against the outer surface of the light-transmitting sheet. At least one operating part is formed on the end face of the clamping member facing the lens opening. The operating part is used to cooperate with a tooling to drive the clamping member to rotate through the tooling.

[0008] In this technical solution, the light-transmitting sheet is pressed and fixed to the front cover body by a clamping component. The threaded engagement structure between the clamping component and the front cover body facilitates the installation or removal of the light-transmitting sheet and makes it easy to control the clamping force of the clamping component on the light-transmitting sheet. By setting up an operating part, it is convenient to cooperate with the tooling and the clamping component, making it easier to install or remove the clamping component in a deep light-transmitting channel, thereby facilitating the installation and removal of the light-transmitting sheet.

[0009] Furthermore, the clamping member includes an annular top pressure ring and an annular connecting ring. The top pressure ring is disposed on the inner wall of the connecting ring, and one end of the connecting ring protrudes from the outer end face of the top pressure ring. The connecting ring is threadedly engaged with the front cover body. The inner end face of the top pressure ring abuts against the outer surface of the light-transmitting sheet. The central cavity of the top pressure ring forms the light-transmitting opening. The operating portion is provided on the outer end face of at least one of the connecting ring and the top pressure ring. By setting the clamping member as an annular structure, the clamping member can press the light-transmitting sheet in the circumferential direction, improving the stability of the light-transmitting sheet installation.

[0010] Furthermore, one end of the connecting ring protrudes from the inner surface of the pressure ring, and a guide bevel is formed on the inner wall of the end of the connecting ring protruding from the inner surface of the pressure ring. The diameter of the guide bevel near the light-transmitting sheet is larger than the diameter of the guide bevel away from the light-transmitting sheet. This avoids the problem of the connecting ring potentially squeezing and damaging the light-transmitting sheet when the clamping member is installed.

[0011] Furthermore, the operating part is configured as a hole or a protrusion.

[0012] Furthermore, a plurality of operating portions are formed on the surface of the clamping member facing the lens aperture, and the plurality of operating portions are circumferentially distributed around the axis of the clamping member.

[0013] Furthermore, the front cover body includes a main body and a lens part. The lens part is disposed on the front side of the main body, the lens opening is located at the front end of the lens part, the light transmission channel passes through the main body and the lens part, the light transmission sheet is installed inside the main body, the outer surface of the light transmission sheet is located inside the lens part, and the inner wall of the lens part is provided with the internal thread.

[0014] Furthermore, the inner wall of the main body forms a protruding annular step, and the light-transmitting sheet is confined within the annular step. At least one disassembly notch is formed on the surface of the annular step facing the lens aperture, and one side of the disassembly notch is formed as an opening structure opposite to the side of the light-transmitting sheet. This facilitates the prying up of the light-transmitting sheet from the disassembly notch using a tool, thus facilitating the disassembly of the light-transmitting sheet.

[0015] Furthermore, the inner wall of the main body is formed with a protruding mounting platform, the light-transmitting sheet is disposed between the mounting platform and the clamping member, the annular step is located on the front side of the mounting platform, and the inner diameter of the annular step is larger than the inner diameter of the mounting platform; the front cover assembly also includes an annular sealing member, an annular sealing groove is formed on the surface of the mounting platform facing the lens aperture, the sealing member is disposed in the sealing groove, and the surface of the sealing member protrudes from the surface of the mounting platform facing the lens aperture.

[0016] Furthermore, the width of the opening side of the disassembly notch is greater than the width of the side of the disassembly notch opposite to the opening.

[0017] The second aspect of this utility model discloses an industrial camera, including a camera body and a photosensitive element disposed inside the camera body, wherein external light can pass through the light transmission channel to reach the photosensitive element, and the camera body also includes the front cover assembly described in the first aspect, the front cover assembly being located at the front end of the camera body, and the photosensitive element being disposed within the front cover body and located inside the light transmission sheet.

[0018] The third aspect of this utility model discloses a vision device, including a lens assembly and an industrial camera, wherein the lens assembly is disposed at the front end of the industrial camera, the industrial camera including the industrial camera of the second aspect, and at least a portion of the lens assembly is inserted into the light transmission channel.

[0019] The reasoning process for the beneficial effects of the industrial camera and vision device provided by this utility model is similar to that of the aforementioned front cover assembly, and will not be repeated here.

[0020] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but this is not intended to limit the technical solution of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a side sectional view of the front cover assembly according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a cross-sectional view of the front cover assembly according to one embodiment of the present invention;

[0025] Figure 4 This is a structural diagram of the front cover assembly (with clamping parts removed) according to one embodiment of the present invention;

[0026] Figure 5 This is a structural diagram of the front cover body of one embodiment of the present utility model;

[0027] Figure 6 This is a structural diagram of the clamping component according to one embodiment of the present utility model;

[0028] Figure 7 This is a side cross-sectional view of the clamping component according to one embodiment of the present invention;

[0029] Figure 8 for Figure 7 Enlarged view at point B in the middle;

[0030] Figure 9 This is a structural diagram of the camera body according to one embodiment of the present utility model;

[0031] Figure 10 This is a structural diagram of the camera according to one embodiment of the present invention;

[0032] Figure 11 This is a cross-sectional view of a camera according to one embodiment of the present invention.

[0033] in,

[0034] 10. Front cover assembly; 11. Front cover body; 111. Mounting platform; 112. Annular step; 113. Removal notch; 114. Main body; 115. Lens part; 12. Clamping component; 121. Top pressure ring; 122. Connecting ring; 123. Operating part; 124. Light transmission port; 125. Guide bevel; 13. Light transmission sheet; 14. Sealing component; 15. Light transmission channel; 16. Lens port; 17. Sealing groove;

[0035] 20. Mid-frame;

[0036] 30. Back cover assembly;

[0037] 40. Lens assembly;

[0038] 50. Photosensitive element. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0040] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0041] In camera manufacturing, some camera types have the lens set in a recessed cavity of a certain depth. As industrial cameras become smaller, the opening of the cavity is also becoming smaller, making it impossible for users to directly reach into the cavity to install or remove the lens, thus affecting work efficiency.

[0042] See appendix Figure 1 and Figure 3 One embodiment of this utility model discloses a front cover assembly, including a front cover body 11, a light-transmitting sheet 13, and a clamping member 12. The front cover body 11 forms a light-transmitting channel 15 with a lens aperture 16, located at the front end of the front cover body 11. The light-transmitting sheet 13 and the clamping member 12 are disposed within the light-transmitting channel 15. The light-transmitting sheet 13 and the front end face of the front cover body 11 form a gap for accommodating the lens assembly. The clamping member 12 is located outside the light-transmitting sheet 13 and forms a... The light-transmitting opening 124 communicates with the light-transmitting channel 15. An external thread is formed on the side wall of the clamping member 12, and an internal thread that mates with the external thread is formed on the inner side wall of the front cover body 11. The clamping member 12 is threadedly engaged with the front cover body 11. The inner side of the clamping member 12 abuts against the outer surface of the light-transmitting sheet 13. At least one operating part 123 is formed on the end face of the clamping member 12 facing the lens opening 16. The operating part is used to cooperate with a tooling to rotate the clamping member 12.

[0043] In this embodiment, the light-transmitting sheet 13 is generally set as a filter (of course, in actual installation, the light-transmitting sheet may also include a protective sheet or protective film disposed on the outside of the filter, etc.). The filter is used to filter light and improve image quality. The light-transmitting sheet 13 and the clamping member 12 are installed inside the front cover body 11. A light-transmitting channel 15 is provided on the front cover body 11. See Appendix. Figure 1 During production and assembly, both the light-transmitting sheet 13 and the clamping member 12 are installed through the light-transmitting channel 15. The specific assembly sequence is to first install the light-transmitting sheet 13 through the light-transmitting channel 15. After the light-transmitting sheet 13 is installed in place, the clamping member 12 is then installed through the light-transmitting channel 15 and the outer surface of the light-transmitting sheet 13 is pressed, thereby fixing the light-transmitting sheet 13 in the front cover body 11. During disassembly, the sequence is reversed. The clamping member 12 needs to be removed first, and then the light-transmitting sheet 13 needs to be removed.

[0044] It can be seen that the ease of installation and removal of the light-transmitting sheet 13 in this embodiment mainly depends on the ease of installation and removal of the clamping member 12.

[0045] Since the front section of the light-transmitting channel 15 in this embodiment is used to accommodate the lens assembly (the space between the light-transmitting sheet 16 and the lens opening 16), which is a concave cavity structure with a certain depth, it is inconvenient to install and remove the clamping member 12 and the light-transmitting sheet 13 in the deep space when using the light-transmitting channel 15. Therefore, the clamping member 12 in this embodiment is provided with an operating part 123. In use, the clamping member 12 can be easily installed into the front cover body 11 along the light-transmitting channel 15 and removed from the front cover body 11 by the cooperation of the tool (the tool can be designed as a slender rod-like structure to facilitate insertion into the narrow and deep light-transmitting channel 15) and the operating part 123, thereby adapting to the operation requirements in a small space.

[0046] In this embodiment, the specific structure of the operating part 123 is not specifically limited. In actual installation, the operating part 123 can be set as a hole structure (in which case the tooling can be designed with protrusions that interlock with the holes), or a protrusion structure (in which case the tooling can be designed with holes that interlock with the protrusions), etc. Of course, it can also be set as other mutually cooperating structures, as long as it can facilitate the mutual docking and cooperation between the operating part 123 and the tooling (for example, a limiting plane can be set on the inner wall of the clamping member 12, and a flat structure that cooperates with the limiting plane can be designed on the outer circle of the tooling).

[0047] Of course, it is conceivable that, in actual settings, the shape of the operation part 123 when it is set as a hole or a protrusion can be designed as a circle, a square, a triangle, or other irregular shapes. When there are multiple operation parts 123, the multiple operation parts 123 can be set as one or more of the above shapes in combination.

[0048] In this embodiment, the specific position of the operating part 123 on the clamping member 12 is not specifically limited. Generally, it is only necessary to ensure that the operating part 123 and the lens port 16 (the opening end of the light transmission channel 15) are opposite each other. For example, the operating part 123 can be set on the end face of the clamping member 12 facing the lens port 16 or on the side wall of the light transmission port 124 of the clamping member 12, etc. It is only necessary to ensure that the tooling can be conveniently cooperated with the operating part 123 from inside the light transmission channel 15.

[0049] In addition, in this embodiment, the clamping member 12 and the front cover body 11 are detachably connected by a threaded connection structure. The clamping member 12 is screwed into or out of the light-transmitting channel 15 through the threaded structure. The threaded structure facilitates the connection between the clamping member 12 and the front cover body 11, and also has a self-locking function. It is also convenient to adjust the clamping force of the clamping member 12 on the light-transmitting sheet.

[0050] In this embodiment, the light-transmitting opening 124 is designed so that the clamping member 12 does not block the light while clamping the light-transmitting sheet 13, thereby ensuring the normal operation of the light-transmitting sheet 13.

[0051] As one embodiment of this utility model, see the appendix. Figure 6 , Figure 7 , Figure 8 The clamping member 12 includes an annular top pressure ring 121 and an annular connecting ring 122. The top pressure ring 121 is disposed on the inner wall of the connecting ring 122. One end of the connecting ring 122 protrudes from the outer end face of the top pressure ring 121. The connecting ring 122 is threadedly engaged with the front cover body 11. The inner end face of the top pressure ring 121 abuts against the outer surface of the light-transmitting sheet 13. The central cavity of the top pressure ring 121 forms the light-transmitting opening 124. The operating part 123 is disposed on the outer end face of at least one of the connecting ring 122 and the top pressure ring 121.

[0052] The clamping member 12 in this embodiment includes a top pressure ring 121 and a connecting ring 122. Both the top pressure ring 121 and the connecting ring 122 are set as annular structures. In specific use, the connecting ring 122 is used to connect with the front cover body 11 (detachably connected), and the top pressure ring 121 is used to press the light-transmitting sheet 13. The top pressure ring 121 is located inside the connecting ring 122, so that the connecting ring 122 is placed on the outside, making it easier to contact the front cover body 11 to achieve connection during installation.

[0053] See appendix Figure 1 , Figure 2 and Figure 3 When in use, the top pressure ring 121 presses the light-transmitting sheet 13 in the circumferential direction through surface contact, which can improve the uniformity of pressing the light-transmitting sheet 13 and the stability of the installation of the light-transmitting sheet 13.

[0054] In this embodiment, the central space of the annular structure automatically forms a light-transmitting opening 124, making the overall structure more compact.

[0055] As one embodiment of this utility model, see the appendix. Figure 6 The top pressure ring 121 has a plurality of operating parts 123 on its surface facing the lens opening 16, and the plurality of operating parts 123 are circumferentially distributed around the axis of the top pressure ring 121.

[0056] In this embodiment, multiple operating parts 123 are arranged circumferentially around the axis of the top pressure ring 121. This allows force to be applied to the clamping member 12 in the circumferential direction during operation, ensuring the uniformity of force on the clamping member 12 and avoiding problems such as difficulty in smooth insertion or removal caused by the clamping member 12 twisting under force.

[0057] In this embodiment, the operating part 123 is disposed on the outer surface of the pressure ring 121. On the one hand, the outer surface area of ​​the pressure ring 121 is larger than that of the connecting ring 122, which facilitates design and manufacturing. On the other hand, in actual use, it is more convenient for the user to observe the position of the operating part 123 on the end face facing the lens port 16, thereby facilitating the docking of the tooling and the operating part 123 during assembly.

[0058] In this embodiment, one end of the connecting ring 122 protrudes from the outer surface of the pressure ring 121, as shown in the attached figure. Figure 7 As shown, this design allows the clamping member 12 to form a stepped structure at the end facing the lens opening 16. This stepped structure can accommodate the installation of more types of lens assemblies (ensuring that mainstream lenses do not interfere with the light-transmitting plate 13, thus achieving compatibility with mainstream lenses).

[0059] Of course, it is conceivable that, in actual setup, the clamping element 12 can also be set as a "C" shaped structure as needed.

[0060] As one embodiment of this utility model, see the appendix. Figure 7 One end of the connecting ring 122 protrudes from the back of the top pressure ring 121, and a guide bevel 125 is formed on the inner wall of the end of the connecting ring 122 protruding from the back of the top pressure ring 121. The diameter of the guide bevel 125 near the end of the light-transmitting sheet 13 is larger than the diameter of the guide bevel 125 away from the end of the light-transmitting sheet 13.

[0061] In this embodiment, the guide bevel 125 creates a space that avoids the light-transmitting sheet 13 during the process of the clamping member 12 inserting and clamping the light-transmitting sheet 13, thus preventing the connecting ring 122 from squeezing and damaging the light-transmitting sheet 13. Specifically, in actual design, the guide bevel 125 can be set as a slope transition or a curved transition.

[0062] In this embodiment, the design of the end of the connecting ring 122 protruding from the back of the top pressure ring 121 makes it easier for the clamping member 12 to cooperate with the light-transmitting sheet 13. The larger connecting ring 122 will play a certain positioning role in the position of the light-transmitting sheet 13 during installation. The guide bevel 125 can play a self-centering guiding effect when the light-transmitting sheet 13 is not installed in the correct position, which facilitates the cooperation between the components during the installation process.

[0063] As one embodiment of this utility model, see the appendix. Figure 3The front cover body 11 includes a main body 114 and a lens part 115. The lens part 115 is disposed on the front side of the main body 114. The lens opening 16 is located at the front end of the lens part 115. The light transmission channel 15 passes through the main body 114 and the lens part 115. The light transmission sheet 13 is installed inside the main body 114. The outer surface of the light transmission sheet 13 is located inside the lens part 115. The inner wall of the lens part 115 is provided with the internal thread.

[0064] In this embodiment, the clamping member 12 is threadedly connected to the lens part 115. In actual installation, in order to ensure that the clamping member 12 can be screwed all the way in, a relief groove can be provided at the inner end of the internal thread on the inner wall of the lens part 115.

[0065] In actual camera design, to ensure the dryness or cleanliness of the working space inside the lens, a rubber seal is generally required between the light-transmitting film 13 and the front cover body 11. Furthermore, to achieve better sealing and stability of the light-transmitting film 13 installation, a certain pre-pressure is generally required between the light-transmitting film 13 and the seal 14. Under this pressure, due to the inherent characteristics of the rubber seal 14, it is easy for the seal 14 to adhere to the light-transmitting film 13. Additionally, during installation, a tight-fitting hole structure is generally required within the front cover body 11 to accommodate the light-transmitting film 13. This tight fit makes it difficult to remove the light-transmitting film 13 during disassembly (generally due to installation fit issues and the adhesion of the seal 14).

[0066] Based on this, as one embodiment of this utility model, see the appendix. Figure 5 The inner wall of the main body 114 forms a protruding annular step 112, and the light-transmitting sheet 13 is confined within the annular step 112. At least one disassembly notch 113 is formed on the surface of the annular step 112 facing the lens opening 16, and one side of the disassembly notch 113 is formed as an opening structure opposite to the side of the light-transmitting sheet 13.

[0067] In this embodiment, the annular step 112 surrounding the light-transmitting sheet 13 within the front cover body 11 can limit the installation of the light-transmitting sheet 13, improving the stability of the installation. Generally, the outer wall of the light-transmitting sheet 13 and the inner wall of the annular step 112 fit together to prevent the light-transmitting sheet 13 from shaking. In this embodiment, a disassembly notch 113 is formed on the annular step 112, as shown in the attached figure. Figure 4 and Figure 5As shown, the disassembly notch 113 forms an opening on the annular step 112 opposite to the light-transmitting sheet 13. When the filter needs to be disassembled, a slender tool (generally with a pointed tip) can be inserted into the position of the disassembly notch 123 to pry up the light-transmitting sheet 13 from one side, avoiding the problem of the light-transmitting sheet 13 being unable to be disassembled or inconvenient to disassemble due to installation fit or sealing ring adhesion issues.

[0068] As one embodiment of this utility model, see the appendix. Figure 5 The inner wall of the main body 114 has a protruding mounting platform 111. The light-transmitting sheet 13 is disposed between the mounting platform 111 and the clamping member 12. The annular step 112 is located on the front side of the mounting platform 111, and the inner diameter of the annular step 112 is larger than the inner diameter of the mounting platform 111. The front cover assembly 10 also includes an annular sealing member 14. An annular sealing groove 17 is formed on the surface of the mounting platform 111 facing the lens opening 16. The sealing member 14 is disposed in the sealing groove 17, and the surface of the sealing member 14 protrudes from the surface of the mounting platform facing the lens opening 16.

[0069] See appendix Figure 1 , Figure 2 and Figure 3 In this embodiment, the light-transmitting sheet 13 is located between the mounting platform 111 and the clamping member 12 during installation. The clamping member 12 presses the light-transmitting sheet 13 onto the mounting surface of the mounting platform 111 through surface contact. The mounting platform 111 and the clamping member 12 limit the axial position of the light-transmitting sheet 13, and the annular step 112 limits the radial position of the light-transmitting sheet 13. Through the mutual cooperation of axial and radial limiting, the light-transmitting sheet 13 is stably installed in the front cover body 11.

[0070] In this embodiment, the sealing element 14 is disposed between the mounting surface and the back of the light-transmitting sheet 13, achieving a seal at the mounting position of the light-transmitting sheet 13 and ensuring the working environment inside the front cover assembly 10. During installation, the sealing element 14 generally protrudes from the sealing groove 17. Thus, when the clamping member 12 presses the light-transmitting sheet 13, a gap is formed between the back of the light-transmitting sheet 13 and the mounting surface of the mounting platform 111 under the action of the sealing element 14. Through the elastic structure on the mounting side of the light-transmitting sheet 13, the risk of damage to the light-transmitting sheet 13 due to hard compression during installation can be reduced.

[0071] As one embodiment of this utility model, see the appendix. Figure 5 The width of the opening side of the disassembly notch 113 is greater than the width of the side of the disassembly notch 113 opposite to the opening.

[0072] In this embodiment, the disassembly notch 113 is designed with one end narrower and the other end wider. The narrow end facilitates the positioning of the tooling during insertion and provides a stable fulcrum when prying up the light-transmitting sheet 13, avoiding the problem of the tooling easily shaking and being unable to pry up the light-transmitting sheet 13 smoothly due to the wider width, making it easier to pry up. The wider opening design near the light-transmitting sheet 13 increases the contact area between the tooling and the light-transmitting sheet 13, making operation more convenient.

[0073] See appendix Figure 9 The second aspect of this utility model discloses an industrial camera, including a camera body and a photosensitive element 50 disposed inside the camera body. External light can pass through the light transmission channel 15 to reach the photosensitive element 50. The camera body also includes a front cover assembly 10 of the first aspect. The front cover assembly 10 is located at the front end of the camera body. The photosensitive element 50 is disposed inside the front cover body 11 and located inside the light transmission sheet 13.

[0074] See appendix Figure 10 and 11 The third aspect of this utility model discloses a vision device, including a lens assembly 40 and an industrial camera, wherein the lens assembly is disposed at the front end of the industrial camera, the industrial camera including the industrial camera of claim 10, and at least a portion of the lens assembly 40 is inserted into the light transmission channel 15.

[0075] The industrial camera and vision device in this embodiment can improve the efficiency of replacing the light-transmitting sheet 13 during use and the ease of installing the light-transmitting sheet 13, wherein the light-transmitting sheet 13 is used to filter the light reaching the photosensitive element 50 and improve the image quality.

[0076] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A front cover assembly, comprising a front cover body (11), a light-transmitting sheet (13), and a clamping member (12), wherein a light-transmitting channel (15) with a lens aperture (16) is formed on the front cover body (11), the lens aperture (16) is located at the front end of the front cover body (11), the light-transmitting sheet (13) and the clamping member (12) are disposed within the light-transmitting channel (15), the light-transmitting sheet (13) and the front end face of the front cover body (11) form a gap for accommodating a lens assembly, the clamping member (12) is located outside the light-transmitting sheet (13) and has a light-transmitting opening (124) communicating with the light-transmitting channel (15), characterized in that, The clamping member (12) has an external thread on its side wall, and the front cover body (11) has an internal thread that matches the external thread on its inner side wall. The clamping member (12) is threadedly engaged with the front cover body (11). The inner side of the clamping member (12) abuts against the outer surface of the light-transmitting sheet (13). At least one operating part (123) is formed on the end face of the clamping member (12) facing the lens opening (16). The operating part (123) is used to cooperate with a tooling to drive the clamping member (12) to rotate through the tooling.

2. The front cover assembly as claimed in claim 1, characterized in that, The clamping member (12) includes a top pressure ring (121) and a connecting ring (122). The top pressure ring (121) is disposed on the inner wall of the connecting ring (122). The connecting ring (122) is threadedly engaged with the front cover body (11). One end of the connecting ring (122) protrudes from the outer end face of the top pressure ring (121). The inner end face of the top pressure ring (121) abuts against the outer surface of the light-transmitting sheet (13). The central cavity of the top pressure ring (121) forms the light-transmitting opening (124). The operating part (123) is disposed on the end face of at least one of the connecting ring (122) and the top pressure ring (121) facing the lens opening (16).

3. The front cover assembly as claimed in claim 2, characterized in that, One end of the connecting ring (122) protrudes from the inner end face of the pressure ring (121), and a guide bevel (125) is formed on the inner wall of the end of the connecting ring (122) protruding from the inner end face of the pressure ring (121). The diameter of the guide bevel (125) near the end of the light-transmitting sheet (13) is greater than the diameter of the guide bevel (125) away from the end of the light-transmitting sheet (13).

4. The front cover assembly as claimed in any one of claims 1 to 3, characterized in that, The operating part (123) is configured as a hole or a protrusion.

5. The front cover assembly as claimed in any one of claims 1 to 3, characterized in that, The clamping member (12) has a plurality of operating parts (123) formed on its surface facing the lens opening (16), and the plurality of operating parts (123) are circumferentially distributed around the axis of the clamping member (12).

6. The front cover assembly as claimed in any one of claims 1 to 3, characterized in that, The front cover body (11) includes a main body (114) and a lens part (115). The lens part (115) is disposed on the front side of the main body (114). The lens opening (16) is located at the front end of the lens part (115). The light transmission channel (15) passes through the main body (114) and the lens part (115). The light transmission sheet (13) is installed inside the main body (114). The outer surface of the light transmission sheet (13) is located inside the lens part (115). The inner wall of the lens part (115) is provided with the internal thread.

7. The front cover assembly as claimed in claim 6, characterized in that, The inner wall of the main body (114) forms a protruding annular step (112), and the light-transmitting sheet (13) is confined within the annular step (112). At least one disassembly notch (113) is formed on the surface of the annular step (112) facing the lens opening (16), and one side of the disassembly notch (113) is formed as an opening structure opposite to the side of the light-transmitting sheet (13).

8. The front cover assembly as claimed in claim 7, characterized in that, The inner wall of the main body (114) has a protruding mounting platform (111). The light-transmitting sheet (13) is disposed between the mounting platform (111) and the clamping member (12). The annular step (112) is located on the front side of the mounting platform (111). The inner diameter of the annular step (112) is larger than the inner diameter of the mounting platform (111). The front cover assembly (10) also includes an annular sealing member (14). An annular sealing groove (17) is formed on the surface of the mounting platform (111) facing the lens opening (16). The sealing member (14) is disposed in the sealing groove (17), and the surface of the sealing member (14) protrudes from the surface of the mounting platform facing the lens opening (16).

9. The front cover assembly as claimed in claim 7, characterized in that, The width of the opening side of the disassembly notch (113) is greater than the width of the disassembly notch (113) on the side opposite to the opening.

10. An industrial camera, comprising a camera body and a photosensitive element (50) disposed inside the camera body, wherein external light can pass through the light-transmitting channel (15) to reach the photosensitive element (50), characterized in that, The camera body further includes a front cover assembly (10) as described in any one of claims 1 to 9, the front cover assembly (10) being located at the front end of the camera body, the photosensitive element (50) being disposed within the front cover body (11) and located inside the light-transmitting sheet (13).

11. A vision device comprising a lens assembly (40) and an industrial camera, the lens assembly being disposed at the front end of the industrial camera, characterized in that, The industrial camera includes the industrial camera of claim 10, wherein at least a portion of the lens assembly (40) is inserted into the light transmission channel (15).

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