Sensor housing structure and sensor device comprising the same

Abstract

This utility model discloses a sensor housing structure and a sensor device including the same. The sensor housing structure includes: a support body with a mounting hole for mounting a vision sensor, the mounting hole having a mounting opening for mounting a lens of the vision sensor; a protrusion extending outward from one end of the support body, the protrusion partially covering the mounting opening, and a first cleaning channel provided within the protrusion, the first cleaning channel having a first inlet and a first outlet, the protrusion extending towards the center of the mounting opening so that the first outlet is close to the center of the mounting opening. Thus, since the center of the mounting opening is opposite to the center of the lens of the vision sensor, and the relative distance between the first outlet and the center of the mounting opening is small, the cleaning medium sprayed from the first outlet can more directly and effectively rinse the center of the lens of the vision sensor, preventing dirt from contaminating the sensor lens.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to sensor housing structure and sensor device including the same. Background Technology

[0002] Advanced manufacturing technology integrates numerous achievements of science and technology with industrial innovation, playing a pivotal role in driving the development of the manufacturing industry. Among its key aspects, real-time monitoring of the machining process is crucial. In the cutting process, the cutting tool, as the component directly performing the cutting task, requires real-time monitoring of its condition to ensure machining quality, improve production efficiency, and guarantee the safe operation of equipment; thus, tool condition monitoring technology has emerged.

[0003] In existing tool condition monitoring technologies, using vision sensors to monitor tools is a common and effective method. This method acquires image information of the tool through vision sensors to determine its usage status. However, in actual tool cutting scenarios, cutting fluid is typically used, primarily for cooling the tool and workpiece, lubricating the cutting area, and flushing away chips. During use, it has been found that cutting fluid is prone to splashing during machining and easily adheres to the lens of the vision sensor. Cutting fluid adhering to the lens surface severely affects the clarity of the image, leading to a decrease in the quality of the image acquired by visual inspection, and consequently reducing the accuracy of visual inspection. This negatively impacts the accuracy and reliability of tool condition monitoring, thus necessitating improvements to existing vision sensor applications. Utility Model Content

[0004] In order to overcome at least one of the defects described in the prior art, the present invention provides a sensor housing structure and a sensor device including the same, to solve the problem that cutting fluid splashing onto the lens of the vision sensor affects the clarity of the photographic image and thus reduces the accuracy of visual detection. Through this sensor housing structure, the cutting fluid and other stains adhering to the lens of the vision sensor can be effectively cleaned, the photographic image quality can be improved, and the accuracy of the monitoring results can be guaranteed.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A sensor housing structure includes: a support body with a mounting hole for mounting a vision sensor, the mounting hole having a mounting opening for mounting a lens of the vision sensor; and a protrusion extending outward from one end of the support body, the protrusion partially covering the mounting opening, the protrusion having a first cleaning channel having a first inlet and a first outlet, the protrusion extending toward the center of the mounting opening so that the first outlet is close to the center of the mounting opening.

[0007] As an optional implementation, the first outlet has a connecting portion that is opposite to the center of the mounting opening, and the connecting portion is disposed through the protrusion on the side of the protrusion that is relatively close to the mounting opening.

[0008] As an optional implementation, the length of the mounting opening in the first direction is defined as L1, and the distance between the center of the first outlet and the center of the mounting opening in the first direction is defined as L2. Then L1 and L2 satisfy 0≤L2≤1 / 4L1.

[0009] As an optional implementation, a first guide groove is provided on the side of the protrusion that is relatively far from the mounting opening. The first guide groove and the mounting opening are spaced apart from each other. The first guide groove is used to discharge the sewage from the protrusion to outside the mounting opening.

[0010] As an optional implementation, the first guide channel extends in an arc shape, with both ends of the first guide channel being through-hole for the discharge of sewage.

[0011] As an optional implementation, a second guide groove is provided on the outer peripheral side of the protrusion that is relatively far from the mounting opening. The second guide groove and the mounting opening are spaced apart from each other. The second guide groove is used to discharge the sewage from the protrusion to outside the mounting opening.

[0012] As an optional implementation, the second guide channel extends in an arc shape, with both ends of the second guide channel being through-holes for the discharge of sewage.

[0013] As an optional implementation, a mounting groove is provided in the mounting opening, the mounting groove extending along the inner periphery of the mounting opening, the mounting groove being used to engage the edge of the lens of the vision sensor.

[0014] As an optional implementation, the protrusion has a first chamfer formed from the side of itself that is relatively far away from the mounting opening toward the first outlet. The first chamfer, the first outlet, and the mounting opening are arranged in sequence. The first included angle between the plane containing the first chamfer and the mounting opening is an obtuse angle, and the first included angle faces away from the first outlet.

[0015] As an alternative implementation, the first outlet is fan-shaped or waist-shaped.

[0016] In addition, this utility model also provides a sensor device, including the sensor device as described in any of the above embodiments, and further including a vision sensor, the vision sensor including a lens and a camera module, the camera module being disposed in the mounting hole, and the lens being disposed in the mounting opening.

[0017] The sensor housing structure and sensor device including the present invention disclosed herein have at least the following beneficial technical effects:

[0018] Because the center of the mounting opening is opposite to the center of the vision sensor lens, and the relative distance between the first outlet and the center of the mounting opening is small, the cleaning medium sprayed from the first outlet can more directly and effectively rinse the center of the vision sensor lens, preventing dirt from contaminating the sensor lens. The center of the lens is usually a key area for acquiring image information. Effective cleaning of it can significantly improve the problem of unclear imaging caused by dirt such as cutting fluid adhering to the lens, thereby ensuring the clarity of the imaging during tool monitoring, improving the accuracy of monitoring results, and providing reliable technical support for visual monitoring applications such as tool condition detection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the sensor housing structure according to an embodiment of this application from a first-view perspective;

[0021] Figure 2 This is a three-dimensional structural diagram of the sensor housing structure according to an embodiment of this application from a second perspective;

[0022] Figure 3 This is a cross-sectional structural diagram of the sensor housing structure according to an embodiment of this application;

[0023] Figure 4This is a three-dimensional structural schematic diagram of the sensor device according to an embodiment of this application;

[0024] Figure 5 This is a three-dimensional structural schematic diagram of the sensor device according to an embodiment of this application.

[0025] Explanation of key figure labels:

[0026] 1. Support body; 11. Mounting hole; 111. Mounting opening; 112. Mounting groove; 12. Second cleaning channel; 121. Second inlet; 122. Second outlet; 2. Protrusion; 21. First cleaning channel; 211. First inlet; 212. First outlet; 213. Connecting part; 22. Second chamfer; 23. First guide groove; 24. Second guide groove; 25. First chamfer; 26. Second chamfer; 3. Vision sensor; 31. Lens; 32. Camera module; 4. Rear housing; 5. External connector. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0031] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0032] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0033] Please see Figures 1 to 3 This application provides a sensor housing structure, which includes a support body 1 and a protrusion 2. The support body 1 is provided with a mounting hole 11 for mounting a vision sensor 3. The mounting hole 11 has a mounting opening 111 for mounting the lens 31 of the vision sensor 3. The protrusion 2 protrudes outward from one end of the support body 1, and partially covers the mounting opening 111. A first cleaning channel 21 is provided inside the protrusion 2. The first cleaning channel 21 has a first inlet 211 and a first outlet 212. The protrusion 2 extends toward the center of the mounting opening 111 so that the first outlet 212 is close to the center of the mounting opening 111.

[0034] The sensor housing structure disclosed in this application has an advantage in that the center of the mounting opening 111 is opposite to the center of the lens 31 of the vision sensor 3, and the relative distance between the center of the first outlet 212 and the center of the mounting opening 111 is small. This allows the cleaning medium sprayed from the first outlet 212 to more directly and effectively rinse the center of the lens 31 of the vision sensor 3, preventing dirt from contaminating the sensor lens. The center of the lens 31 is usually a key area for acquiring image information. Effective cleaning of it can significantly improve the problem of unclear imaging caused by dirt such as cutting fluid adhering to the lens 31, thereby ensuring the clarity of the imaging during tool monitoring, improving the accuracy of the monitoring results, and providing reliable technical support for visual monitoring applications such as tool condition detection.

[0035] In some embodiments, the cleaning medium ejected from the first cleaning channel 21 can be gas or liquid. Specifically, the first cleaning channel 21 can use gas for air jet cleaning, or use cleaning liquid for liquid spray cleaning, or use both air jet cleaning and liquid spray cleaning simultaneously, that is, use the scouring force generated by the ejection of gas and / or liquid for cleaning.

[0036] like Figure 3 and Figure 4 As shown, in one embodiment, a second cleaning channel 12 is provided inside the support body 1. The second cleaning channel 12 has a second inlet 121 and a second outlet 122. The second inlet 121 is used to connect to an external connector 5, and the second outlet 122 is connected to the first inlet 211. Thus, firstly, the design of the second inlet 121 connecting to the external connector 5 allows the supply source of cleaning media (such as compressed air, cleaning liquid, etc.) to be easily connected to the sensor housing structure. Whether it is an existing compressed air system, a cleaning liquid storage device, or a specially equipped small cleaning media supply device, it can be quickly and accurately connected to the second cleaning channel 12 through the external connector 5 without requiring complex modifications to the sensor housing structure or additional installation steps, greatly improving the ease of use of the equipment. Secondly, when the cleaning medium enters the second cleaning channel 12 from the external connector 5, it can smoothly enter the first cleaning channel 21 and be ejected from the first outlet 212 through the connection between the second outlet 122 and the first inlet 211. Thus, integrating the second cleaning channel 12 into the support body 1 and connecting it with the first cleaning channel 21 fully utilizes the space of the support body 1, making the overall structure of the sensor housing more compact. This compact design not only saves installation space but also facilitates equipment installation and layout, offering significant advantages, especially in processing environments with limited space. Thirdly, the cooperation between the second cleaning channel 12 and the first cleaning channel 21 achieves integrated cleaning functions. The sensor housing structure not only protects the vision sensor 3 but also provides automatic cleaning of the lens 31, improving the integration and functionality of the equipment and meeting the demands of modern manufacturing for multi-functional and integrated equipment.

[0037] like Figure 1As shown, in one embodiment, the first outlet 212 has a connecting portion 213, which is opposite to the center of the mounting opening 111. The connecting portion 213 is disposed through the side of the protrusion 2 that is relatively close to the mounting opening 111. Thus, in a first aspect, since the connecting portion 213 is disposed through the side of the protrusion 2 that is relatively close to the mounting opening 111, the cleaning medium can reach the center of the lens 31 more directly, reducing the cleaning blind spots caused by the obstruction of the structure of the protrusion 2. Compared with the conventional design, this structure allows the cleaning medium to more comprehensively cover the center and surrounding key areas of the lens 31, ensuring that the entire area requiring clear imaging can be effectively cleaned, further improving the comprehensiveness and accuracy of cleaning. Secondly, the center of the connecting part 213 and the center of the mounting opening 111 are opposite each other, so that the cleaning medium sprayed from the first outlet 212 can be sprayed more accurately towards the central area of ​​the lens 31 of the vision sensor 3. In visual monitoring applications such as tool condition detection, the central area of ​​the lens 31 is usually the core position for acquiring key image information and capturing tool features. Precise spraying of the cleaning medium can ensure that the area is cleaned most effectively, and remove the cutting fluid, oil and other stains attached to the center in time, avoiding incomplete or inaccurate image information due to stains, thereby greatly improving the accuracy of cleaning.

[0038] like Figure 3 As shown, in one embodiment, the length of the mounting opening 111 in the first direction is defined as L1, and the distance between the center of the first outlet 212 and the center of the mounting opening 111 in the first direction is defined as L2. Then L1 and L2 satisfy 0 ≤ L2 ≤ 1 / 4L1. Thus, in the first aspect, the distance between the center of the first outlet 212 and the center of the mounting opening 111 is controlled within a reasonable range. During the cleaning process, the cleaning medium sprayed from the first outlet 212 can more accurately cover the core area of ​​the lens 31 of the vision sensor 3. Since the center of the mounting opening 111 usually corresponds to the key position for the lens 31 to acquire images, this accurate coverage ensures that the core area is thoroughly cleaned, effectively removing stains such as cutting fluid and oil adhering to the lens 31, and greatly improving the cleaning effect. Secondly, under the condition of satisfying the above-mentioned spacing relationship, after the cleaning medium is sprayed into the central area of ​​the lens 31, it can spread to the periphery in a relatively uniform manner, and can also play a good cleaning role in the surrounding area of ​​the lens 31. This avoids the problem of over-cleaning in some areas and under-cleaning in some areas due to improper position of the first outlet 212, and achieves uniform cleaning of the entire area of ​​the lens 31 corresponding to the installation opening 111, further improving the overall cleaning quality.

[0039] like Figure 1 and Figure 2As shown, in one embodiment, a first guide channel 23 is provided on the side of the protrusion 2 that is relatively far from the mounting opening 111. The first guide channel 23 and the mounting opening 111 are spaced apart from each other. The first guide channel 23 is used to discharge the contaminant from the protrusion 2 to outside the mounting opening 111. With this configuration, firstly, during the cleaning process of the vision sensor 3 lens 31, the contaminant formed by the mixture of cutting fluid, cleaning medium and dirt will adhere to the surface of the protrusion 2. The first guide channel 23 can quickly guide and discharge this contaminant, avoiding the accumulation of contaminant on the surface of the protrusion 2. Compared with a design without a guide channel, the contaminant can leave the protrusion 2 more quickly, reducing the possibility of contaminant splashing again or flowing back to the mounting opening 111 and contaminating the lens 31, thereby improving cleaning efficiency and ensuring that the lens 31 can be restored to a clear state more quickly. Secondly, because the first drainage channel 23 promptly discharges the contaminated liquid, the surface of the protrusion 2 remains relatively clean throughout the cleaning process. This facilitates the subsequent spraying and diffusion of the cleaning medium, allowing it to reach the surface of the lens 31 more smoothly and perform a more comprehensive and thorough cleaning. Especially for stubborn stains, the rapid drainage of the contaminated liquid prevents the stains from drying and hardening on the surface of the protrusion 2, further improving the thoroughness of the cleaning.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment, the first guide channel 23 extends in an arc shape, with both ends of the first guide channel 23 penetrating to allow for the discharge of waste liquid. This design has two advantages: First, the arc-shaped first guide channel 23 better accommodates the flow trend of waste liquid on the surface of the protrusion 2. Since waste liquids such as cutting fluid often exhibit curved flow characteristics under the influence of gravity, surface tension, and the impact of cleaning media, the arc design reduces resistance during flow, allowing the waste liquid to flow more smoothly along the guide channel. This avoids accumulation, blockage, or poor flow within the guide channel, thus significantly improving the flow efficiency of the waste liquid. Second, the penetrating design at both ends allows the waste liquid to be quickly discharged from the guide channel, preventing prolonged accumulation. If too much waste liquid accumulates in the guide channel, it may splash back onto the installation opening 111 due to equipment vibration, airflow changes, etc., causing secondary pollution. The penetrating design at both ends ensures timely discharge of the waste liquid, reducing this risk and further enhancing the effect of preventing secondary pollution.

[0041] It should be noted that in some other embodiments, the first guide channel 23 may also be rectangular or serpentine, etc., depending on the actual needs, and is not limited here.

[0042] It should be noted that in some other embodiments, the first guide channel 23 may only be provided through one end, and the configuration can be set according to actual needs, and is not limited here.

[0043] like Figure 1 and Figure 2 As shown, in one embodiment, a second guide groove 24 is provided on the outer peripheral side of the protrusion 2, which is relatively far from the mounting opening 111. The second guide groove 24 and the mounting opening 111 are spaced apart from each other. The second guide groove 24 is used to discharge the contaminant from the protrusion 2 to the outside of the mounting opening 111. With this configuration, firstly, during the cutting process, the contaminant formed by the mixture of cutting fluid, cleaning medium and dirt will inevitably splash onto the outer peripheral side of the protrusion 2. The second guide groove 24 can quickly capture and guide this contaminant, causing it to flow along a predetermined path. Compared with no guide groove, the contaminant can leave the surface of the protrusion 2 more quickly, reducing the accumulation time of the contaminant on the outer peripheral side of the protrusion 2. This effectively reduces the possibility of the contaminant splashing again or flowing back to the mounting opening 111 and contaminating the lens 31 of the vision sensor 3, significantly improving cleaning efficiency. Secondly, secondary contamination is one of the key issues affecting the imaging quality of the vision sensor 3. The second guide channel 24 effectively discharges the contaminant outside the mounting opening 111, cutting off the path of contaminant backflow and fundamentally preventing secondary contamination. Even in complex machining environments, such as when multiple tools are operating simultaneously or when the direction of cutting fluid splashing is variable, the second guide channel 24 can ensure that the contaminant does not come into contact with the mounting opening 111, ensuring that the vision sensor 3 can maintain a clear imaging effect for a long time after cleaning. Thirdly, the outer periphery of the protrusion 2 is one of the areas where contaminant is prone to accumulate. The second guide channel 24 is set around the outer periphery, which can fully cover the contaminant diversion needs of this area. No matter which direction the contaminant splashes onto the outer periphery of the protrusion 2, it can be guided and discharged in time by the second guide channel 24, avoiding the problem of incomplete cleaning caused by local contaminant accumulation and improving the comprehensiveness and thoroughness of cleaning.

[0044] like Figure 1 and Figure 2As shown, in one embodiment, the second guide channel 24 extends in an arc shape, with both ends of the second guide channel 24 penetrating through to allow for the discharge of waste liquid. Thus, firstly, the arc-shaped second guide channel 24 can closely match the actual flow trend of the waste liquid on the outer periphery of the protrusion 2. During cutting, the cutting fluid and other waste liquids are subjected to gravity, surface tension, and the impact of the cleaning medium, and their flow trajectory is often curved. The arc design can significantly reduce the flow resistance of the waste liquid, allowing it to flow more smoothly and efficiently along the guide channel, preventing stagnation, blockage, or turbulent flow within the channel, and significantly improving the waste liquid guiding efficiency. Secondly, the through-end design of the second guide channel 24 provides two flexible discharge directions for the contaminated liquid. In actual processing scenarios, the direction of cutting fluid splashing is complex and varied, and equipment operation may be affected by various external forces. Regardless of which direction the contaminated liquid enters the guide channel, it can be quickly discharged through the nearest through-end, ensuring that the contaminated liquid does not accumulate in the guide channel for too long. This effectively prevents backflow or overflow of contaminated liquid, greatly improving the discharge efficiency. Furthermore, the through-end design allows the contaminated liquid to be discharged from the guide channel in a timely and thorough manner, avoiding prolonged accumulation in the channel. If too much contaminated liquid accumulates in the guide channel, it may splash back to the installation opening 111 due to factors such as equipment vibration and airflow changes, causing secondary pollution. The through-end design effectively reduces this risk and further enhances the effect of preventing secondary pollution.

[0045] It should be noted that in some other embodiments, the second guide channel 24 may also be rectangular or serpentine, etc., depending on the actual needs, and is not limited here.

[0046] It should be noted that in some other embodiments, the second guide channel 24 may only be provided through one end, and the configuration can be set according to actual needs, without being limited to one specific embodiment.

[0047] like Figure 3As shown, in one embodiment, a mounting groove 112 is provided within the mounting opening 111. The mounting groove 112 extends along the inner periphery of the mounting opening 111 and is used to engage the edge of the lens 31 of the vision sensor 3. This configuration, firstly, provides a precise positioning space for the edge of the lens 31 of the vision sensor 3 by extending the mounting groove 112 along the inner periphery of the mounting opening 111. The edge of the lens 31 can be accurately embedded in the mounting groove 112, achieving a stable fixation through engagement. This prevents the lens 31 from shaking or shifting within the mounting opening 111, ensuring that the relative position between the lens 31 and the sensor housing remains stable at all times, thus laying the foundation for the vision sensor 3 to acquire clear and accurate image information. Secondly, the engagement between the mounting groove 112 and the edge of the lens 31 forms a reliable sealing barrier, which can prevent cutting fluid, coolant and other contaminants from entering the sensor through the mounting opening 111, thereby protecting the sensitive element of the vision sensor 3 from contaminant corrosion and damage. Even if a large amount of contaminant splashes during processing, the good sealing performance can ensure that the internal environment of the sensor is dry and clean, thus extending the service life of the sensor.

[0048] like Figure 3As shown, in one embodiment, the protrusion 2 forms a first chamfer 25 from the side relatively away from the mounting opening 111 toward the first outlet 212. The first chamfer 25, the first outlet 212, and the mounting opening 111 are arranged sequentially. The first included angle between the plane containing the first chamfer 25 and the mounting opening 111 is an obtuse angle, which faces away from the first outlet 212. This arrangement, firstly, cleverly alters the shape of the protrusion 2 in this area, transforming a sharp structure that might otherwise obstruct the sensor's field of view into a smoothly transitioning slope. Because the first included angle between the first chamfer 25 and the plane containing the mounting opening 111 is an obtuse angle, light and object images can enter the sensor area within the mounting opening 111 with a smoother path, avoiding blind spots caused by the structure of the protrusion 2. This ensures that the sensor can acquire more comprehensive and complete scene information, providing high-quality raw data for subsequent image processing and analysis. Secondly, in optical systems, irregular structures and sharp edges can easily cause light refraction and scattering, leading to image distortion. The smooth design of the first chamfer of 25 degrees reduces unnecessary reflection and refraction of light during propagation, making the light entering the sensor more uniform and stable. This effectively reduces the probability of optical distortion, improves image clarity and accuracy, and enables the sensor to more realistically reflect the actual state of the monitored object. Furthermore, the wide and unobstructed field of view and reduced optical distortion allow the sensor to capture richer image details. In applications such as tool condition detection, this means that subtle features such as tool wear and breakage can be observed more clearly, providing operators with more accurate tool condition information. This helps to make timely decisions on tool replacement or maintenance, improving production efficiency and product quality.

[0049] like Figure 1 As shown, in one embodiment, the first outlet 212 is fan-shaped or waist-shaped to increase the area for air or liquid blowing. Firstly, compared to traditional circular or narrow strip outlets, the fan-shaped or waist-shaped first outlet 212 has a larger outlet area and a wider spray range. When performing air or liquid blowing operations, the airflow or liquid can cover the surface of the lens 31 at a wider angle and area, ensuring that all parts of the lens 31 are effectively cleaned. Whether it's the central area or the edges and corners of the lens 31, everything can be cleaned promptly, avoiding dirt residue caused by cleaning dead spots, and greatly improving the comprehensiveness and effectiveness of cleaning. Secondly, for some stubborn dirt adhering to the surface of the lens 31, such as cutting fluid residue or metal shavings, the larger air or liquid blowing area can provide a stronger impact force. The airflow or liquid is evenly distributed on the surface of the lens 31 in a fan-shaped or waist-shaped manner, forming a more uniform and powerful cleaning effect. This allows for faster and more thorough removal of stubborn dirt from the lens 31, quickly restoring the lens 31 to a clear state and providing good working conditions for the vision sensor 3.

[0050] like Figure 2 and Figure 3 As shown, in one embodiment, a second chamfer 22 is provided at one end of the support body 1. The second chamfer 22 and the protrusion 2 are vertically opposite and spaced apart from each other. The second chamfer 22 is adjacent to the mounting opening 111, and the second included angle between the plane containing the second chamfer 22 and the mounting opening 111 is an obtuse angle, which faces the first outlet 212. It is understood that when compressed air blows towards the lens 31, the atomization phenomenon caused by airflow resistance scattering and the collision between the cutting fluid and the inner wall of the opening at the sensor lens 31 would severely blur the field of view of the vision sensor 3. The setting of the second chamfer 22 can effectively guide the flow of the cutting fluid under the action of compressed air, so that the cutting fluid flows out smoothly along the chamfer, avoiding the accumulation and atomization of the cutting fluid within the sensor's field of view. This ensures that the vision sensor 3 can obtain clear and interference-free image information, providing a reliable foundation for applications such as tool condition detection. Therefore, by providing a second chamfer 22 at one end of the support body 1, the flow direction of the cutting fluid under the action of compressed air can be effectively guided, so that the cutting fluid flows out smoothly along the second chamfer 22 and will not be atomized in the sensor's field of view.

[0051] like Figure 3 As shown, in one embodiment, the extension direction of the first cleaning channel 21 and the plane where the mounting opening 111 is located are inclined to each other (that is, the extension direction of the first cleaning channel 21 is inclined to the lens 31). This makes the first outlet 212 form an inclined spray outlet facing the lens 31. Since the first outlet 212 is inclined towards the lens 31, gas or liquid can be sprayed onto the surface of the lens 31 at a certain angle. This inclined gas or liquid can generate a tangential force, making it easier for contaminants such as cutting fluid, dust, and debris to be blown away from the surface of the lens 31. Furthermore, the inclined first outlet 212 can reduce cleaning dead angles and improve overall cleaning efficiency. Moreover, the inclined airflow can cover a larger area of ​​the lens 31. Compared with vertical spraying, the inclined spraying of gas or liquid has a longer action path on the surface of the lens 31, which can perform more comprehensive cleaning of the lens 31, improve the uniformity of cleaning, and ensure that every area of ​​the lens 31 achieves a good cleaning effect.

[0052] like Figure 4 and Figure 5 As shown, this application also discloses a sensor device, which includes a sensor housing structure as described in any of the above embodiments, and further includes a vision sensor 3. The vision sensor 3 includes a lens 31 and a camera module 32. The camera module 32 is disposed in the mounting hole 11, and the lens 31 is disposed in the mounting opening 111.

[0053] In one embodiment, the sensor device further includes a rear housing 4, which is connected to the end of the bracket body 1 away from the protrusion 2 to close the mounting hole 11.

[0054] In summary, the sensor housing structure and sensor device including it disclosed in this utility model can bring at least the following beneficial technical effects:

[0055] (1) Since the center of the mounting opening 111 is opposite to the center of the lens 31 of the vision sensor 3, and the relative distance between the center of the first outlet 212 and the center of the mounting opening 111 is small, the cleaning medium sprayed from the first outlet 212 can more directly and effectively rinse the center of the lens 31 of the vision sensor 3, preventing dirt from contaminating the sensor lens.

[0056] (2) Since the connecting part 213 is disposed through the protrusion 2 on the side relatively close to the mounting opening 111, the cleaning medium can reach the center of the lens 31 more directly, reducing the cleaning blind spot caused by the structure of the protrusion 2. Compared with the traditional design, this structure allows the cleaning medium to cover the center and surrounding key areas of the lens 31 more comprehensively, ensuring that the entire area that needs clear imaging can be effectively cleaned.

[0057] (3) L1 and L2 satisfy 0≤L2≤1 / 4L1. The distance between the first outlet 212 and the center of the installation opening 111 is controlled within a reasonable range. During the cleaning process, the cleaning medium sprayed from the first outlet 212 can more accurately cover the core area of ​​the lens 31 of the vision sensor 3.

[0058] (4) The first guide groove 23 can quickly guide the sewage out, avoiding the accumulation of sewage on the surface of the protrusion 2. Compared with the design without the guide groove, the sewage can leave the protrusion 2 more quickly, reducing the possibility of sewage splashing or flowing back to the installation opening 111 and contaminating the lens 31, thereby improving the cleaning efficiency.

[0059] The sensor housing structure and sensor device including the present invention disclosed in the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the sensor housing structure and sensor device including the present invention and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A sensor housing structure, characterized by, The sensor housing structure includes: The bracket body (1) is provided with a mounting hole (11) for mounting a vision sensor (3). The mounting hole (11) has a mounting opening (111) for mounting the lens (31) of the vision sensor (3). A protrusion (2) protrudes outward from one end of the bracket body (1). The protrusion (2) partially covers the mounting opening (111). A first cleaning channel (21) is provided inside the protrusion (2). The first cleaning channel (21) has a first inlet (211) and a first outlet (212). The protrusion (2) extends toward the center of the mounting opening (111) so that the first outlet (212) is close to the center of the mounting opening (111).

2. The sensor housing structure of claim 1, wherein The first outlet (212) has a connecting portion (213) which is opposite to the center of the mounting opening (111) and is disposed through the protrusion (2) on the side relatively close to the mounting opening (111).

3. The sensor housing structure according to claim 1, characterized in that, Let L1 be the length of the mounting opening (111) in the first direction, and L2 be the distance between the center of the first outlet (212) and the mounting opening (111) in the first direction. Then L1 and L2 satisfy 0≤L2≤1 / 4L1.

4. The sensor housing structure according to any one of claims 1-3, characterized in that, A first guide groove (23) is provided on the side of the protrusion (2) that is relatively far away from the mounting opening (111). The first guide groove (23) and the mounting opening (111) are spaced apart from each other. The first guide groove (23) is used to discharge the sewage of the protrusion (2) to the outside of the mounting opening (111).

5. The sensor housing structure according to claim 4, characterized in that, The first guide channel (23) extends in an arc shape, and both ends of the first guide channel (23) are provided through to allow sewage to be discharged.

6. The sensor housing structure according to any one of claims 1-3, characterized in that, A second guide groove (24) is provided on the outer peripheral side of the protrusion (2) that is relatively far away from the mounting opening (111). The second guide groove (24) and the mounting opening (111) are spaced apart from each other. The second guide groove (24) is used to discharge the sewage of the protrusion (2) to the outside of the mounting opening (111).

7. The sensor housing structure according to claim 6, characterized in that, The second guide channel (24) extends in an arc shape, and both ends of the second guide channel (24) are provided through to allow sewage to be discharged.

8. The sensor housing structure according to claim 1, 2, 3, 5, or 7, characterized in that, An installation groove (112) is provided in the installation opening (111), the installation groove (112) extends along the inner periphery of the installation opening (111), and the installation groove (112) is used to engage the edge of the lens (31) of the vision sensor (3).

9. The sensor housing structure according to claim 1, 2, 3, 5, or 7, characterized in that, The protrusion (2) forms a first chamfer (25) from the side of itself that is relatively far away from the mounting opening (111) toward the first outlet (212). The first chamfer (25), the first outlet (212) and the mounting opening (111) are arranged in sequence. The first included angle between the planes where the first chamfer (25) and the mounting opening (111) are located is an obtuse angle, and the first included angle is away from the first outlet (212).

10. A sensor device, characterized in that, The sensor housing structure as described in any one of claims 1-9 further includes a vision sensor (3), the vision sensor (3) including a lens (31) and a camera module (32), the camera module (32) being disposed in the mounting hole (11), and the lens (31) being disposed in the mounting opening (111).

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