Visual inspection device and protection mechanism thereof

Abstract

The utility model provides a visual inspection device and a protection mechanism thereof. The protection mechanism comprises a shell and a baffle. One side of the outer side of the shell is used for connecting and fixing a visual sensor. The shell is hollow, and corresponding through holes are formed in the two opposite sides of the shell. The baffle is movably arranged in the shell. And a via hole corresponding to the through hole is formed in the baffle plate. The baffle plate can move relative to the housing so that the via hole and the through hole are aligned to expose the window of the visual sensor, or the via hole and the through hole are staggered to shield the through hole. The through hole corresponding to the window of the visual sensor is formed in the shell, the through hole corresponding to the through hole is formed in the baffle, and the baffle is movably connected with the shell, so that the protection mechanism can be conveniently detached from the visual sensor under the condition that the protection mechanism is not detached from the visual sensor; the through hole is aligned with the through hole in the shell directly through the movement of the baffle, so that the window of the visual sensor can be exposed; or the through hole can be shielded by staggering the through hole and the through hole, so that the visual sensor is shielded and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of vision detection, in particular to a vision detection device and a protection mechanism thereof. Background Art

[0002] With the development of vision detection technology, the application fields of vision sensors are becoming more and more extensive, and their working environments are becoming more complex. Especially for some vision sensors used in special operation fields or field environments, due to the characteristics of their precision optical devices, the vision sensor window is the position where the camera lens or the camera lens and the laser emission port are directly opposite; the cleanliness of the vision sensor window directly affects the image acquisition accuracy of the sensor.

[0003] At present, most vision sensor windows do not have a protection structure. For some vision sensors used in special scenarios, their windows will be damaged to varying degrees due to special operations, such as the splash impact of welding slag during the welding process, the splashing and slag hanging during the cutting process, etc., resulting in the vision sensor being unable to be used normally. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a vision sensing device with a protection effect and a protection mechanism thereof.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] According to one aspect of the present application, the present application provides a protection mechanism for shielding and protecting a vision sensor. The protection mechanism includes:

[0007] A housing, one side of the outside of which is used to connect and fix the vision sensor; the inside of the housing is hollow, and corresponding through holes are provided on opposite sides of the housing;

[0008] A baffle plate, which is movably arranged inside the housing; through holes corresponding to the through holes are provided on the baffle plate; the baffle plate can move relative to the housing so that the through holes are aligned with the through holes to expose the window of the vision sensor, or the through holes are misaligned with the through holes to block the through holes.

[0009] In some embodiments, at least two of the through holes are respectively arranged at intervals along a first direction on each side of the housing;

[0010] The baffle plate includes at least two plate bodies distributed at intervals along the first direction; at least two plate bodies distributed at intervals along the first direction are correspondingly arranged with at least two through holes spaced along the first direction; the plate bodies are respectively movably connected to the housing;

[0011] Through holes adapted to the corresponding through holes are provided on each of the plate bodies.

[0012] In some embodiments, each side of the housing further includes at least one perforation provided corresponding to at least one of the through holes spaced along a first direction, and the perforations located on the same side of the housing and the corresponding through holes are spaced apart along a second direction; the second direction is perpendicular to the first direction;

[0013] At least one of the plate bodies is further provided with an opening adapted to the perforation, and the opening and the through hole are spaced apart along the second direction.

[0014] In some embodiments, the protection mechanism includes a driving assembly disposed inside the housing for driving at least two of the plate bodies to move.

[0015] In some embodiments, the driving assembly includes a main driving member and at least one driven driving member. The main driving member is connected to one of the plate bodies; a driven driving member is provided between two adjacent plate bodies, and the outer periphery of the driven driving member is in contact with the edges of two adjacent plate bodies. The driven driving member is rotatably connected to the housing. The main driving member drives the plate body connected thereto to move so that at least one of the driven driving members rotates relative to the housing, thereby driving the remaining plate bodies to move relative to the housing.

[0016] In some embodiments, the driven driving member meshes with two adjacent plate bodies;

[0017] The driven driving member is a gear; a rack is provided on a side of the plate body close to the driven driving member, and the gear meshes with the rack.

[0018] In some embodiments, the interior of the housing is hollow to form a receiving cavity, and an installation groove with an opening facing the receiving cavity is formed on one side of the housing for receiving the main driving member.

[0019] In some embodiments, a guiding member is provided on the housing corresponding to each of the plate bodies. The guiding member is provided with a guiding groove with an opening facing the corresponding plate body for receiving an end portion of the corresponding plate body, and the guiding groove is in sliding fit with the plate body.

[0020] In some embodiments, the protection mechanism further includes a connecting member for connecting the housing and the vision sensor;

[0021] The connecting member is a magnetic member.

[0022] According to another aspect of the present application, the present application further provides a vision detection device, including at least one vision sensor and the protection mechanism described in any one of the above, where the vision sensor is used for image acquisition; the protection mechanism is fixedly connected to one side of the window of the vision sensor to protect the vision sensor;

[0023] The vision detection device further includes a controller, and the controller is electrically connected to the vision sensor and the protection mechanism to realize the opening and closing of the vision sensor and the protection mechanism.

[0024] It can be seen from the above technical solutions that the present utility model has at least the following advantages and positive effects:

[0025] The protection mechanism in the present utility model can effectively protect the window of the vision sensor from being damaged by external impacts and keep the window clean. Among them, the protection mechanism is fixedly connected to the vision sensor through one side of the housing, and by providing through holes corresponding to the window of the vision sensor on the housing, perforations corresponding to the through holes are provided on the baffle, and the baffle is movably connected to the housing, so that it is convenient to directly align the perforations with the through holes on the housing by moving the baffle without removing the protection mechanism from the vision sensor, thereby exposing the window of the vision sensor; or misaligning the perforations with the through holes can block the through holes and shield the vision sensor to protect the vision sensor, and the operation is convenient and simple.

[0026] Moreover, by using one side of the housing of the protection mechanism to be fixedly connected to the vision sensor, this design is convenient to reduce the size of the protection mechanism to a certain extent to lighten the protection mechanism and reduce the pressure borne by the vision sensor; at the same time, using the internal space of the housing to accommodate the baffle can also improve the structural compactness of the protection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the protection mechanism in one direction in this embodiment.

[0028] Figure 2 is a schematic structural diagram of the protection mechanism in another direction in this embodiment.

[0029] Figure 3 is an exploded structural diagram of the protection mechanism in this embodiment.

[0030] Figure 4 is a partial exploded structural diagram of the protection mechanism in this embodiment.

[0031] Figure 5 is Figure 1 a sectional view taken along the A-A direction in

[0032] The reference numerals are explained as follows:

[0033] 1. Housing; 11. Through hole; 12. Perforation; 13. Shell; 131. Installation groove; 132. Accommodation groove; 14. Cover plate; 141. Avoidance hole; 2. Baffle; 21. Plate body; 211. Through hole; 212. Opening; 22. Rack; 31. Active driving member; 32. Driven driving member; 4. Fastener; 5. Rotating shaft; 6. Guide member; 61. Guide groove; 7. Connecting member. Detailed implementation mode

[0034] Typical implementation modes reflecting the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the present utility model can have various changes in different implementation modes, all of which do not depart from the scope of the present utility model, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present utility model.

[0035] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of the direction or position relationship (such as up, down, left, right, front, and back, etc.) is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the description of the positions of these elements changes, then the indication of these directions also changes accordingly.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0037] The present application provides a visual detection device for collecting images. The visual detection device includes at least one visual sensor and a protection mechanism.

[0038] Among them, the visual sensor is used for image collection. Each visual sensor has a window for obtaining images. The number of visual sensors can be one or more than two, and the specific setting depends on the needs.

[0039] The protection mechanism is connected and fixed to one side of the window of the visual sensor for protecting the visual sensor, so that the visual detection device can adapt to some special scenarios, such as welding, cutting, etc. The protection mechanism can effectively protect the window of the visual sensor in the non-use state from being damaged by external impacts and keep the window clean, thereby ensuring the normal use of the visual sensor and improving the versatility of the visual detection device.

[0040] The following will, in conjunction with the accompanying drawings, provide a detailed description of specific embodiments of the protection mechanism of the present application.

[0041] Figure 1 This is a schematic structural diagram of the protection mechanism in one direction in this embodiment. Figure 2 This is a schematic structural diagram of the protection mechanism in another direction in this embodiment. Figure 3 This is an exploded schematic structural diagram of the protection mechanism in this embodiment.

[0042] Refer to Figures 1 to 3 , the protection mechanism includes a housing 1 and a baffle 2. One side of the outer side of the housing 1 is used for connecting and fixing a vision sensor. The interior of the housing 1 is hollow, and corresponding through holes 11 are provided on opposite sides of the housing 1. The baffle 2 is movably arranged inside the housing 1. The baffle 2 is provided with through holes 211 corresponding to the through holes 11. The baffle 2 can move relative to the housing 1 to align the through holes 211 with the through holes 11 to expose the window of the vision sensor, or to misalign the through holes 211 with the through holes 11 to block the through holes 11.

[0043] In the present application, the protection mechanism is connected and fixed to the vision sensor through one side of the housing 1, and by providing through holes 11 corresponding to the window of the vision sensor on the housing 1, perforations 12 corresponding to the through holes 11 on the baffle 2, and movably connecting the baffle 2 to the housing 1, it is convenient to directly align the perforations 12 with the through holes 11 on the housing 1 by moving the baffle 2 without detaching the protection mechanism from the vision sensor, thereby exposing the window of the vision sensor; or misaligning the perforations 12 with the through holes 11 to block the through holes 11 and shielding the vision sensor to protect the vision sensor, with convenient and simple operation.

[0044] Moreover, by connecting and fixing the protection mechanism to the vision sensor through one side of the housing 1 of the protection mechanism, this design is convenient to reduce the size of the protection mechanism to a certain extent, to lighten the protection mechanism and reduce the pressure borne by the vision sensor; at the same time, using the internal space of the housing 1 to accommodate the baffle 2 can also improve the structural compactness of the protection mechanism.

[0045] Refer to Figures 1 to 3 , in this embodiment, the housing 1 is in a nearly cuboid shape. Among them, the housing 1 has three directions of length, width, and height. The dimension of the housing 1 along its length direction is greater than its dimension along the width direction, and the dimension of the housing 1 along its width direction is greater than its dimension along the height direction. In actual application, the housing 1 is connected and fixed to the side of the window of the vision sensor with its outer side along the height direction.

[0046] Exemplarily, the dimension of the housing 1 in its length direction is 155 mm, the dimension of the housing 1 in its width direction is 63.4 mm, and the dimension of the housing 1 in its height direction is 10 mm. This makes the housing 1 have a smaller external dimension, so as to lighten the housing 1, reduce the weight of the housing 1, and thus reduce the weight of the protection mechanism and the pressure borne by the vision sensor.

[0047] The interior of the housing 1 is hollow to form a receiving cavity.

[0048] Corresponding through holes 11 are provided on opposite sides of the housing 1, and the through holes 11 communicate with the receiving cavity. Among them, the axes of the two through holes 11 located on opposite sides and corresponding to each other of the housing 1 are on the same straight line, so as to be aligned with the window of the vision sensor simultaneously, and thus the window of the vision sensor can be completely exposed to ensure the normal operation of the vision sensor.

[0049] At least two through holes 11 are provided on each side of the housing 1 at intervals in the first direction. Each through hole 11 on the same side of the housing 1 is arranged corresponding to the window of a vision sensor. Exemplarily, two through holes 11 are provided on each side of the housing 1 at intervals in the first direction.

[0050] Herein, the first direction refers to the width direction of the housing 1, and the same applies hereinafter.

[0051] Each side of the housing 1 further includes at least one perforation 12 provided corresponding to and at intervals in the first direction with at least one through hole 11. The perforations 12 on the same side of the housing 1 are spaced apart from the corresponding through holes 11 in the second direction. Each perforation 12 is arranged corresponding to the window of a vision sensor. The axes of the two perforations 12 located on opposite sides and corresponding to each other of the housing 1 are on the same straight line, so as to be aligned with the window of the vision sensor simultaneously, and thus the window of the vision sensor can be completely exposed to ensure the normal operation of the vision sensor.

[0052] The second direction is perpendicular to the first direction. Herein, the second direction refers to the length direction of the housing 1, and the same applies hereinafter.

[0053] Exemplarily, when the number of perforations 12 on each side of the housing 1 is one, among the perforations 12 on the same side of the housing 1, the perforation 12 and one of the through holes 11 are spaced apart in the second direction. When the number of perforations 12 on each side of the housing 1 is two, among the perforations 12 on the same side of the housing 1, the two perforations 12 can be spaced apart from one of the through holes 11 in the second direction. At this time, the two perforations 12 can be spaced on opposite sides of the through hole 11, or can be spaced on the same side of the through hole 11; alternatively, the two perforations 12 can also be arranged in one-to-one correspondence with two of the through holes 11, and each perforation 12 is spaced apart from the corresponding through hole 11 in the second direction. At this time, the two perforations 12 can be on the same side of the through hole 11 in the second direction, or can be arranged on opposite sides of the through hole 11 in the second direction. When the number of perforations 12 on each side of the housing 1 is three, among the perforations 12 on the same side of the housing 1, the three perforations 12 can be arranged in one-to-one correspondence with three of the through holes 11; alternatively, one perforation 12 is arranged corresponding to one through hole 11, and two perforations 12 are arranged corresponding to another through hole 11; alternatively, the three perforations 12 are arranged corresponding to one through hole 11. For the distribution method of the perforations 12 and the corresponding through holes 11, reference can be made to the above text. When the number of perforations 12 is four or more other numbers, the setting form of the perforations 12 can refer to the above text.

[0054] In this embodiment, the housing 1 includes a housing body 13 and a cover plate 14. One side of the housing body 13 is open in the third direction, and the interior of the housing body 13 is hollow. Herein, the third direction refers to the height direction of the housing 1, and the same applies hereinafter.

[0055] On one side of the housing body 13 in the third direction, through holes 11 and perforations 12 are provided, and the through holes 11 and the perforations 12 communicate with the opening of the housing body 13.

[0056] The cover plate 14 is covered on the opening side of the housing body 13 and is fixedly connected to the housing body 13. Through holes 11 and perforations 12 are correspondingly provided on the cover plate 14.

[0057] The baffle 2 is movably arranged inside the housing 1. A through hole 211 corresponding to the through hole 11 is provided on the baffle 2. The baffle 2 can move relative to the housing 1 so that the through hole 211 is aligned with the through hole 11 to expose the window of the vision sensor, or the through hole 211 is misaligned with the through hole 11 to block the through hole 11. Herein, alignment means that the axis of the through hole 211 and the axis of the corresponding through hole 11 are on the same straight line, and misalignment means that by moving the baffle 2, the through hole 211 and the corresponding through hole 11 are spaced apart in the second direction.

[0058] Exemplarily, a corresponding through hole 11 is provided on each of the opposite sides of the housing 1, and a through hole 211 is provided on the baffle 2. In actual application, by moving the baffle 2, the through hole 211 on the baffle 2 is aligned with the two through holes 11 located on the opposite sides of the housing 1, so that the two through holes 11 communicate with each other through the through hole 211, and the window of the vision sensor is exposed; or, by moving the baffle 2, the through hole 211 is misaligned with the two through holes 11 located on the opposite sides of the housing 1, so that the baffle 2 blocks the communication between the two through holes 11, and the window of the vision sensor is shielded.

[0059] Wherein, the inner diameter of the through hole 211 is greater than or equal to the inner diameter of the through hole 11, so that the through hole 11 on the housing 1 can be completely exposed through the through hole 211 on the baffle 2, and the window of the vision sensor is completely exposed, avoiding blocking the line-of-sight range of the vision sensor to ensure the normal image acquisition of the vision sensor.

[0060] Figure 4 It is a partial exploded structural schematic diagram of the protection mechanism in this embodiment. Figure 5 is Figure 1 the sectional view along the A-A direction in.

[0061] Refer to Figures 3 to 5 , the baffle 2 includes at least two plate bodies 21 spaced apart along the first direction, and at least two plate bodies 21 spaced apart along the first direction are correspondingly arranged with at least two through holes 11 spaced apart along the first direction. Each plate body 21 is provided with a through hole 211 adapted to the corresponding through hole 11, and each plate body 21 is movably connected to the housing 1 respectively. Each plate body 21 is used to realize the opening and closing of the through hole 11 corresponding to it, so as to realize the on-off of the two through holes 11 arranged oppositely on both sides of the housing 1.

[0062] At least one plate body 21 is further provided with an opening 212 adapted to the through hole 12, and the opening 212 and the through hole 211 are spaced apart along the second direction. That is, the opening and closing of the through hole 11 and the through hole 12 spaced apart along the second direction can be directly realized by the same plate body 21.

[0063] Refer to Figure 3 and Figure 4 , the protection mechanism includes a driving component. The driving component is arranged inside the housing 1 and is used to drive at least two plate bodies 21 to move.

[0064] The driving component includes a main driving member 31 and at least one driven driving member 32.

[0065] Wherein, the main driving member 31 is connected to one of the plate bodies 21, and the main driving member 31 drives the plate body 21 connected to it to move.

[0066] In this embodiment, an installation groove 131 with an opening facing the accommodation cavity is formed on one side of the outer shell 1, and the active driving member 31 is accommodated in the installation groove 131. In this way, the outer shell 1 only has a larger thickness (dimension in the height direction) in the part where the accommodation groove 132 is provided, while the remaining part of the outer shell 1 has a smaller thickness, so as to reduce the overall thickness of the outer shell 1 and facilitate miniaturization and light weight of the outer shell 1. The length direction of the installation groove 131 is the same as the moving direction of the plate body 21. Specifically, the installation groove 131 is provided on the housing 13, and its length direction extends along the second direction. The active driving member 31 is accommodated and installed in the installation groove 131 with its length direction extending along the second direction.

[0067] Specifically, the active driving member 31 includes a driving body and an output shaft. Among them, the driving body is fixedly connected to the outer shell 1. Exemplarily, the driving body is fixedly connected to the housing 13 of the outer shell 1 through a fastener 4.

[0068] The output shaft penetrates through one end of the driving body along the length direction and is drivingly connected to the driving body. Among them, the driving body drives the output shaft to expand and contract or rotate. The output shaft is fixedly connected to the plate body 21.

[0069] Exemplarily, in the case where the driving body drives the output shaft to expand and contract, the output shaft can be fixedly connected to the plate body 21 through a fastener 4. In actual application, the driving body drives the output shaft to expand and contract to drive the plate body 21 to move along the second direction.

[0070] Exemplarily, in the case where the driving body drives the output shaft to rotate, the output shaft is a threaded rod. At this time, a connecting block can be protruded on the plate body 21, and the output shaft penetrates through the connecting block and is threadedly connected to the connecting block. In actual application, the driving body drives the output shaft to rotate, and the connecting block will move along the thread on the outer circumference of the output shaft, so as to realize the movement of the plate body 21.

[0071] In this embodiment, the active driving member 31 is a motor or a cylinder, etc.

[0072] Reference Figure 4 , a driven driving member 32 is provided between two adjacent plate bodies 21, and the outer circumference of the driven driving member 32 is attached to the edges of the two adjacent plate bodies 21. The driven driving member 32 is rotatably connected to the outer shell 1. Specifically, the driven driving member 32 is rotatably connected to the outer shell 1 through a rotating shaft 5.

[0073] Exemplarily, the plate body 21 connected to the active driving member 31 is the first plate body 21, and the remaining plate bodies 21 are the second plate bodies 21. In actual application, the active driving member 31 drives the first plate body 21 to move relative to the housing 1. During the process that the plate body 21 moves in the same direction, the first plate body 21 will give a thrust to the driven driving member 32 in contact therewith, so that the driven driving member 32 in contact with the first plate body 21 rotates in the same direction as the moving direction of the first plate body 21. During the rotation of the driven driving member 32, the driven driving member 32 will drive the second plate body 21 in contact therewith to move, so as to achieve the purpose of simultaneous movement of all the plate bodies 21, and further simultaneously realize the opening and closing of all the through holes 11 and the perforations 12. Wherein, two adjacent plate bodies 21 move in opposite directions.

[0074] In this embodiment, the driven driving member 32 meshes with two adjacent plate bodies 21, which can improve the stability of the movement of all the plate bodies 21 to ensure that all the plate bodies 21 can move simultaneously. Specifically, the driven driving member 32 is a gear. A rack 22 is provided on one side of the plate body 21 close to the driven driving member 32, and the gear meshes with the rack 22.

[0075] Reference Figure 4 , exemplarily, the number of the plate bodies 21 is two. Among them, the active driving member 31 is arranged in the interval between the two plate bodies 21, and the driven driving member 32 and the active driving member 31 are spaced apart along the second direction, which optimizes the structural layout of the protection mechanism and improves the structural compactness of the protection mechanism.

[0076] In other embodiments, the driving assembly may also only include the active driving member 31, and the setting of the driven driving member 32 is omitted. At this time, two adjacent plate bodies 21 are fixedly connected, the output shaft of the active driving member 31 is connected to one of the plate bodies 21, and the active driving member 31 drives the output shaft to rotate or stretch to directly realize the same-direction movement of all the plate bodies 21.

[0077] Reference Figures 3 to 5 , a guiding member 6 is provided on the housing 1 corresponding to each plate body 21. A guiding groove 61 with an opening facing the corresponding plate body 21 is provided on the guiding member 6. The guiding groove 61 is used to accommodate the end of the corresponding plate body 21, and the guiding groove 61 is in sliding fit with the plate body 21, so as to further improve the stability of the plate body 21 located on the outside during movement. Specifically, the guiding member 6 is arranged on the housing 13, and guiding members 6 are correspondingly provided at opposite ends of each plate body 21 along the first direction, so that opposite ends of the plate body 21 along the first direction are both slidably connected to the guiding member 6 to further improve the stability of the movement of the plate body 21.

[0078] Reference Figure 1 And Figure 2, the protection mechanism further includes a connecting member 7 for connecting the housing 1 and the vision sensor. Specifically, a receiving groove 132 with an opening facing the cover plate 14 is formed on the housing 13 of the housing 1. A relief hole 141 communicating with the receiving groove 132 is correspondingly provided on the cover plate 14. The connecting member 7 is at least partially received in the receiving groove 132 and is fixedly connected to the housing 13. One end of the connecting member 7 facing away from the housing 13 passes through the relief hole 141 for fixedly connecting with the vision sensor.

[0079] Exemplarily, the connecting member 7 can be snap-connected, adhesively connected, magnetically attracted to the housing 13, or fixedly connected by a fastener 4, etc. The connecting member 7 can be magnetically fixed or adhesively connected to the vision sensor, etc., which facilitates the quick disassembly or quick installation between the protection mechanism and the vision sensor through the connecting member 7, and the operation is convenient and simple.

[0080] In this embodiment, the connecting member 7 can be a magnetic member.

[0081] The vision detection device further includes a controller. The controller is electrically connected to the vision sensor and the protection mechanism to realize the opening and closing of the vision sensor and the protection mechanism. Specifically, the controller is electrically connected to the active driving member 31 of the protection mechanism.

[0082] The working principle of the above vision detection device is as follows:

[0083] An image acquisition signal is transmitted to the controller. The controller controls the active driving member 31 to start, so as to drive its output shaft to extend or rotate in the same direction, so as to drive the plate body 21 connected to the output shaft to move, and make the through hole 211 of the plate body 21 align with the corresponding through hole 11, and / or the opening 212 align with the corresponding through hole 211, so as to expose the vision sensor. During the process of the plate body 21 connected to the output shaft moving in the same direction, a thrust will be given to the driven driving member 32 meshed with the plate body 21, and the driven driving member 32 will be driven to rotate. While the driven driving member 32 rotates, the acting force is transmitted to another plate body 21 meshed with it, and the other plate body 21 is driven to move. Among them, two adjacent plate bodies 21 move in opposite directions.

[0084] After all the corresponding through holes 11 and / or all the corresponding perforations 12 on the opposite sides of the housing 1 are aligned, the vision sensor is controlled to start for image acquisition work.

[0085] After the image acquisition work is completed, the vision sensor is controlled to turn off by the controller. At the same time, the active driving member 31 is controlled to start, so as to drive its output shaft to expand and contract or rotate in the same direction, so as to drive the plate body 21 connected to the output shaft to move, so that the through hole 211 of the plate body 21 is misaligned with the corresponding through hole 11, and / or the opening 212 is misaligned with the corresponding through hole 211, so that the plate body 21 blocks the communication between the corresponding through holes 11 and the perforations 12 on the opposite sides of the housing 1, and shields the vision sensor, so as to play a protective role for the vision sensor.

[0086] As can be seen from the above technical solutions, the present utility model has at least the following advantages and positive effects:

[0087] In this application, the protection mechanism is fixedly connected to the vision sensor through one side of the housing, and through holes corresponding to the window of the vision sensor are provided on the housing, perforations corresponding to the through holes are provided on the baffle, and the baffle is movably connected to the housing, so that it is convenient to directly align the perforations with the through holes on the housing by moving the baffle without detaching the protection mechanism from the vision sensor, and the window of the vision sensor can be exposed; or the perforations can be misaligned with the through holes to block the through holes and shield the vision sensor, so as to protect the vision sensor, and the operation is convenient and simple.

[0088] Moreover, one side of the housing of the protection mechanism is fixedly connected to the vision sensor, and this design is convenient to reduce the size of the protection mechanism to a certain extent, so as to lighten the protection mechanism and reduce the pressure borne by the vision sensor; at the same time, using the internal space of the housing to accommodate the baffle can also improve the structural compactness of the protection mechanism.

[0089] Although the present utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present utility model can be embodied in many forms without departing from the spirit or essence of the utility model, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims, and therefore all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A protection mechanism for shielding a visual sensor, characterized in that: The protection mechanism comprises: A shell, one side of the outer side of which is used to connect and fix the visual sensor; the interior of the shell is hollow, and corresponding through holes are provided on opposite sides of the shell; A baffle is movably arranged inside the shell; the baffle is provided with a through hole corresponding to the through hole; the baffle can move relative to the shell to align the through hole with the through hole to expose the window of the visual sensor, or to misalign the through hole with the through hole to block the through hole.

2. The protection mechanism according to claim 1, characterized in that: At least two through holes are provided at intervals along the first direction on each side of the housing; The baffle comprises at least two plates spaced apart along a first direction; the at least two plates spaced apart along the first direction are arranged correspondingly to the at least two through holes spaced apart along the first direction; the plates are movably connected to the housing respectively; Each of the plates is provided with a via hole matched with the corresponding through hole.

3. The protection mechanism according to claim 2, characterized in that: Each side of the shell further comprises at least one through hole arranged corresponding to at least one through hole spaced along the first direction, and the through holes and the corresponding through holes on the same side of the shell are spaced along the second direction; the second direction is perpendicular to the first direction; At least one of the plates is also provided with an opening matched with the through hole, and the opening and the via hole are spaced apart and distributed along the second direction.

4. The protection mechanism according to claim 2, characterized in that: The protection mechanism comprises a driving assembly, which is arranged inside the shell and is used for driving at least two of the plates to move.

5. The protection mechanism according to claim 4, characterized in that: The driving assembly includes an active driving member and at least one driven driving member, the active driving member is connected to one of the plate bodies; the driven driving member is arranged between two adjacent plate bodies, and the outer periphery of the driven driving member is in contact with the edges of the two adjacent plate bodies, the driven driving member is rotatably connected to the outer shell, and the active driving member drives the plate bodies connected thereto to move so that at least one of the driven driving members rotates relative to the outer shell, thereby driving the remaining plate bodies to move relative to the outer shell.

6. The protection mechanism according to claim 5, characterized in that: The driven driving member is engaged with two adjacent plates; The driven driving member is a gear; a rack is provided on one side of the plate body close to the driven driving member, and the gear is meshed with the rack.

7. The protection mechanism according to claim 5, characterized in that: The inner part of the shell is hollow to form a receiving cavity, and one side of the shell is formed with a mounting groove opening toward the receiving cavity, and the mounting groove is used to accommodate the active driving component.

8. The protection mechanism according to claim 2, characterized in that: The housing is provided with a guide piece corresponding to each of the plates, and the guide piece is provided with a guide groove opening toward the corresponding plate, the guide groove is used to accommodate the corresponding end of the plate, and the guide groove is slidably matched with the plate.

9. The protection mechanism according to claim 1, characterized in that: The protection mechanism further includes a connecting piece, and the connecting piece is used to connect the housing and the visual sensor; The connecting piece is a magnetic piece.

10. A visual inspection device, characterized in that: The device comprises at least one visual sensor and a protective mechanism as claimed in any one of claims 1 to 9, wherein the visual sensor is used for image acquisition; the protective mechanism is connected and fixed to one side of the window of the visual sensor to protect the visual sensor; The visual detection device also includes a controller, which is electrically connected to the visual sensor and the protective mechanism to realize the opening and closing of the visual sensor and the protective mechanism.

Images