Positioning module, measuring device and key production line

Abstract

This utility model discloses a positioning module, a measuring device, and a key production line, including a box and a positioning component. The box has a receiving cavity; the positioning component is located within the receiving cavity and is used to hold the key to be measured. The box has a light-transmitting window so that a camera module can photograph the key to be measured on the positioning component through the light-transmitting window. When photographing the key to be measured, the key can be placed on the positioning component first, at which point the key to be measured is also located within the receiving cavity; then, the camera module photographs the key to be measured through the light-transmitting window. The box design can effectively shield and protect the key to be copied and measured, preventing external dust and debris from falling on the key to be copied and measured, thereby reducing the adverse effects of the surrounding environment on the measurement results.

Description

Technical Field

[0001] This utility model relates to the field of key production equipment technology, and in particular to a positioning module, a measuring device and a key production line. Background Technology

[0002] In the key production process, the key to be copied (i.e. the key to be measured) is first measured to obtain the corresponding parameters of the key to be measured. Then, the key blank is processed according to the parameters to obtain the required key.

[0003] When measuring a key, the key to be measured needs to be placed on the corresponding positioning module, and then the key to be copied is photographed with a camera to obtain its image information. Subsequently, the image is processed to obtain the corresponding parameters of the key to be measured.

[0004] However, in the existing technology, when measuring the key to be measured, the measurement error is easily caused by the influence of the surrounding environment. Utility Model Content

[0005] This utility model provides a positioning module, a measuring device, and a key production line, aiming to solve the problem that when measuring keys, the measurement error is easily caused by the influence of the surrounding environment.

[0006] This utility model provides a positioning module, including a box and a positioning component; the box has a receiving cavity; the positioning component is located in the receiving cavity and is used to place the key to be measured; the box has a light-transmitting window so that a camera module can photograph the key to be measured on the positioning component through the light-transmitting window.

[0007] Optionally, the light-transmitting window is a light-transmitting hole that penetrates the housing.

[0008] Optionally, the housing includes a base plate and a shielding member; the base plate and the shielding member are connected to form the receiving cavity; the light-transmitting window is disposed on the shielding member; the positioning component is connected to the base plate; the area of ​​the positioning component for placing the key to be measured is opposite to the light-transmitting window.

[0009] Optionally, the shielding member is provided with a receiving hole that penetrates the shielding member; in the extending direction of the receiving hole, the base plate is connected to one end of the shielding member; in the extending direction of the receiving hole, the receiving hole includes a first segment hole and a second segment hole that are connected; the first segment hole is provided on the surface of the shielding member near the base plate and cooperates with the base plate to form the receiving cavity; the second segment hole is the light-transmitting window and is provided on the surface of the shielding member away from the base plate.

[0010] Optionally, the outer side of the shield is provided with an inlet / outlet hole, which communicates with the receiving hole. The inlet / outlet hole is used for inserting and removing the key to be measured into the receiving cavity. The box body also includes a sealing plate, which is connected to the shield and can move relative to the shield to open or close the inlet / outlet hole. The sealing plate is rotatably connected to the shield, and the axis around which the sealing plate rotates relative to the shield is parallel to the extension direction of the receiving hole.

[0011] Optionally, the positioning component includes a first positioning plate, a second positioning plate, and a third positioning plate; in a first direction, the first positioning plate, the second positioning plate, and the third positioning plate are stacked sequentially and approach the light-transmitting window sequentially; in a second direction, the first positioning plate protrudes from the second positioning plate to form a first step structure; in the second direction, one end of the second positioning plate used to form the first step structure protrudes from the third positioning plate to form a second step structure; the surface of the second positioning plate facing away from the first positioning plate is used to place the key to be measured, and the portion of the second positioning plate protruding from the third positioning plate is used to support the head of the key to be measured; one end of the third positioning plate used to form the second step structure is used to abut against the head of the key to be measured; the third positioning plate has an avoidance structure to avoid the tail of the key to be measured; the first direction and the second direction are perpendicular.

[0012] Optionally, the second positioning plate has a clearance groove on its surface opposite to the first positioning plate; in the first direction, the clearance groove penetrates through the first positioning plate and the second positioning plate; in the second direction, the clearance groove extends to the portion of the first positioning plate that protrudes from the second positioning plate; in the third direction, the two sides of the clearance groove are used to support the key to be measured; both the first direction and the second direction are perpendicular to the third direction; and / or, the third positioning plate includes a first plate body and a second plate body, the first plate body and the second plate body are spaced apart along the third direction, the clearance structure is the spaced area between the first plate body and the second plate body, and the clearance structure is used to insert the tail of the key to be measured; and / or, the first positioning plate, the second positioning plate and the third positioning plate are an integral structure.

[0013] This utility model embodiment also provides a measuring device, including a camera module and a positioning module as described in any one of the above; the camera module is used to photograph the key to be measured on the positioning component from the light-transmitting window.

[0014] Optionally, the camera module is located outside the receiving cavity.

[0015] This utility model embodiment also provides a key production line, including the measuring device described in any one of the above.

[0016] In the positioning module, measuring device, and key production line provided in this embodiment of the invention, when photographing the key to be measured, the key can first be placed on the positioning component, at which point the key is also located within the receiving cavity; then, the camera module is used to photograph the key from the light-transmitting window. The housing design effectively shields and protects the key to be copied and measured, preventing external dust and debris from falling onto it, thereby reducing the adverse effects of the surrounding environment on the measurement results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.

[0018] Figure 1 This is a schematic diagram of the positioning module and camera module working together according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a positioning module provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the box body of the positioning module provided in one embodiment of the present invention;

[0021] Figure 4 This is a partial schematic diagram of the housing of the positioning module provided in one embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the positioning component of the positioning module provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of a complex key provided in an embodiment of this utility model.

[0024] Instruction manual illustrations and reference numerals:

[0025] 10. Positioning module; 20. Key to be measured; 201. Head; 202. Tail; 30. Camera module;

[0026] 1. Box body; 11. Receiving cavity; 12. Light-transmitting window; 13. Base plate; 14. Shielding component; 141. Receiving hole; 142. Inlet / outlet hole; 15. Sealing plate;

[0027] 2. Positioning component; 21. First positioning plate; 22. Second positioning plate; 23. Third positioning plate; 231. Avoidance structure; 232. First plate body; 233. Second plate body; 24. Avoidance groove. Detailed Implementation

[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1 and Figure 2 As shown, in one embodiment, the positioning module 10 includes a housing 1 and a positioning component 2; wherein, the housing 1 has a receiving cavity 11; the positioning component 2 is located in the receiving cavity 11 and is used to place the key 20 to be measured; the housing 1 is provided with a light-transmitting window 12 so that the camera module 30 can take pictures of the key 20 to be measured on the positioning component 2 through the light-transmitting window 12.

[0031] In this embodiment, when taking a picture of the key 20 to be measured, the key 20 to be measured can be placed on the positioning component 2 first. At this time, the key 20 to be measured is also located in the receiving cavity 11. Then, the camera module 30 is used to take a picture of the key 20 to be measured from the light-transmitting window 12.

[0032] In the prior art, when photographing the key 20 to be measured, debris and other particles generated during the key blank processing operation on the key production line can easily fall onto the key 20, leading to significant measurement errors. In this embodiment, however, the housing 1 provides shielding and protection for the key 20, effectively preventing external dust and debris from falling onto it, thereby reducing the adverse effects of the surrounding environment on the measurement results.

[0033] like Figure 2 As shown, in one embodiment, the light-transmitting window 12 is a light-transmitting hole that penetrates the box body 1.

[0034] The light-transmitting hole penetrating the housing 1 means that the light-transmitting hole extends from the outer surface of the housing 1 to the inner surface of the housing 1. The inner surface of the housing 1 then encloses and forms a receiving cavity 11, meaning that the light-transmitting hole extends from the outer surface of the housing 1 to communicate with the receiving cavity 11. In this way, light within the receiving cavity 11 can be transmitted to the camera module 30 through the light-transmitting hole.

[0035] like Figure 3 As shown, in one embodiment, the housing 1 includes a base plate 13 and a shielding member 14; the base plate 13 and the shielding member 14 are connected to form a receiving cavity 11; a light-transmitting window 12 is disposed on the shielding member 14; a positioning component 2 is connected to the base plate 13; the area of ​​the positioning component 2 for placing the key 20 to be measured is opposite to the light-transmitting window 12. This arrangement facilitates the production and manufacturing of the positioning module 10 and facilitates the camera module 30 in photographing the key 20 to be measured.

[0036] The area on the positioning component 2 used to place the key 20 to be measured is defined as the positioning area. The positioning area can be located on the side of the positioning component 2 opposite to the base plate 13. Of course, the positioning area can also be located in other positions on the positioning component 2.

[0037] The light-transmitting window 12 being opposite to the positioning area means that after external light enters the receiving cavity 11 through the light-transmitting window 12, it can be directly transmitted to the positioning area, and the light reflected from the positioning area can be directly transmitted out of the box 1 through the light-transmitting window 12 so that it can be captured by the camera module 30 outside the box 1.

[0038] In a scenario where the light-transmitting window 12 is a light-transmitting hole, the light-transmitting hole can be a straight hole. In this case, the light-transmitting window 12 being opposite to the positioning area can also mean that in the orthographic projection of a plane perpendicular to the axis of the light-transmitting hole, the projection of the light-transmitting hole and the projection of the positioning area have an overlapping part.

[0039] Furthermore, in this scenario, the cross-sectional area of ​​the light-transmitting aperture can be greater than or equal to the area of ​​the positioning area, and in the orthographic projection onto a plane perpendicular to the axis of the light-transmitting aperture, the projection of the positioning area lies entirely within the projection of the light-transmitting aperture. Additionally, in this scenario, the positioning area can be planar, and the axis of the light-transmitting aperture can also be perpendicular to the positioning area.

[0040] like Figure 3 As shown, in one embodiment, the shielding member 14 is provided with a receiving hole 141, which penetrates the shielding member 14. In the extending direction of the receiving hole 141, the base plate 13 is connected to one end of the shielding member 14. In the extending direction of the receiving hole 141, the receiving hole 141 includes a first segment hole and a second segment hole that are connected. The first segment hole is located on the surface of the shielding member 14 near the base plate 13 and cooperates with the base plate 13 to form a receiving cavity 11. The second segment hole is a light-transmitting window 12 and is located on the surface of the shielding member 14 opposite to the base plate 13. This simplifies the structural design of the positioning module 10.

[0041] The receiving hole 141 is the hole formed by the inner surface of the shielding member 14. After assembly, the positioning component 2 is located in the first hole. The inner surface of the box body 1 includes the inner surface of the shielding member 14 and the surface of the base plate 13 facing the receiving hole.

[0042] In one application scenario, the shielding member 14 is located above the base plate 13, and at this time, the first hole is located below the second hole.

[0043] In addition, the first and second hole segments have the same cross-sectional shape and the same cross-sectional dimensions.

[0044] In addition, the base plate 13 can be an opening formed on the outer surface of the first section hole on the shield 14.

[0045] In one embodiment, the blocking member 14 is a rectangular ring structure, in which case the receiving hole 141 is a rectangular hole. Of course, in other embodiments, the blocking member 14 can also be a circular ring structure, etc.

[0046] like Figure 3 and Figure 4 As shown, in one embodiment, the outer side of the shield 14 is provided with an inlet / outlet hole 142, which communicates with the receiving hole 141. The inlet / outlet hole 142 is used for inserting and removing the key 20 to be measured in the receiving cavity 11. The box body 1 also includes a sealing plate 15, which is connected to the shield 14 and can move relative to the shield 14 to open or close the inlet / outlet hole 142.

[0047] The light-transmitting window 12 is located on the end face of the shield 14, and the inlet / outlet hole 142 is located on the outer side of the shield 14. The inlet / outlet hole 142 and the light-transmitting window 12 are respectively located on different sides of the shield 14. This effectively prevents interference from the camera module 30 during the insertion and removal of the key 20 to be measured from the receiving cavity 11. Furthermore, this allows the camera module 30 to be positioned closer to the light-transmitting window 12, thereby improving its imaging effect on the key 20 to be measured.

[0048] It should be understood that "the inlet / outlet hole 142 is connected to the receiving hole 141" means that the inlet / outlet hole 142 extends from the outer side of the shield 14 to the inner surface of the shield 14. The extending direction of the inlet / outlet hole 142 intersects the axis of the receiving hole 141.

[0049] The outer and inner sides of the shielding member 14 are two opposing surfaces. The inner side encloses and forms a receiving hole 141. The outer and inner sides intersect at the two end faces of the shielding member 14, which are the first end face and the second end face, respectively. These two end faces refer to the two opposing surfaces of the shielding member 14 in the extending direction of the receiving hole 141. The first section of the hole is provided on the first end face and extends to the second end face. The base plate 13 may be connected to the first end face. The second section of the hole is provided on the second end face and extends to the first end face.

[0050] The inlet / outlet hole 142 is used for inserting and removing the key 20 to be measured into the receiving cavity 11. This means that the key 20 to be measured can be placed into the receiving cavity 11 through the inlet / outlet hole 142, and the key 20 to be measured can also be removed from the receiving cavity 11 through the inlet / outlet hole 142.

[0051] When the sealing plate 15 opens the inlet / outlet hole 142, the key to be measured 20 can be placed into the receiving cavity 11 through the inlet / outlet hole 142, or the key to be measured 20 can be taken out from the receiving cavity 11 through the inlet / outlet hole 142.

[0052] When the sealing plate 15 closes the inlet / outlet hole 142, it can improve the shielding and protection effect on the key 20 to be measured inside the receiving cavity 11. At this time, it is impossible to place the key 20 to be measured into the receiving cavity 11 through the inlet / outlet hole 142, nor is it possible to remove the key 20 to be measured from the receiving cavity 11 through the inlet / outlet hole 142.

[0053] In one embodiment, the sealing plate 15 and the blocking member 14 are rotatably connected. The sealing plate 15 and the blocking member 14 may be connected together by a hinge or the like, thereby achieving the rotatable connection between the sealing plate 15 and the blocking member 14.

[0054] The axis around which the sealing plate 15 rotates relative to the blocking member 14 (defined as the first axis) is parallel to the extending direction of the receiving hole 141. This arrangement facilitates the driving operation of the sealing plate 15. Of course, the first axis can also intersect the extending direction of the receiving hole 141. Alternatively, the extending direction of the receiving hole 141 can be parallel to the arrangement direction of the blocking member 14 and the base plate 13.

[0055] In one embodiment, the inlet / outlet hole 142 may also be a through-hole through the obstruction 14 in the extending direction of the receiving hole 141. In this case, the inlet / outlet hole 142 extends from the first end face to the second end face.

[0056] like Figure 5As shown, in one embodiment, the positioning component 2 includes a first positioning plate 21, a second positioning plate 22, and a third positioning plate 23; in a first direction, the first positioning plate 21, the second positioning plate 22, and the third positioning plate 23 are stacked sequentially and approach the light-transmitting window 12 in sequence; in a second direction, the first positioning plate 21 protrudes from the second positioning plate 22 to form a first step structure; in the second direction, one end of the second positioning plate 22 used to form the first step structure protrudes from the third positioning plate 23 to form a second step structure; the surface of the second positioning plate 22 facing away from the first positioning plate 21 is used to place the key 20 to be measured, and the portion of the second positioning plate 22 protruding from the third positioning plate 23 is used to support the head 201 of the key 20 to be measured (see reference). Figure 6 The third positioning plate 23, with one end forming the second step structure, is used to abut the head 201 of the key 20 to be measured; the third positioning plate 23 has an avoidance structure 231 to avoid the tail 202 of the key 20 to be measured; the first direction and the second direction intersect. Preferably, the first direction and the second direction are perpendicular.

[0057] exist Figure 5 In the diagram, the first direction is parallel to the Z-axis, and the second direction is parallel to the X-axis.

[0058] The third positioning plate 23 is used to position the key 20 to be measured, which is placed on the second positioning plate 22, to define its placement position. The avoidance structure 231 is used to avoid the tail 202 of the key 20 to be measured, so as not to interfere with the placement of the key 20 to be measured on the second positioning plate 22.

[0059] In addition, the aforementioned positioning area is at least a portion of the surface of the second positioning plate 22 that is away from the first positioning plate 21.

[0060] "The end of the third positioning plate 23 used to form the second step structure is used to abut the head 201 of the key 20 to be measured" means that the end of the third positioning plate 23 used to form the second step structure can be used to abut the head 201 of the key 20 to be measured during subsequent use.

[0061] The key has a head 201 and a tail 202. The connection between the head 201 and the tail 202 forms a stepped structure. When in use, the head 201 is used by the operator to hold and apply force, and the tail 202 is used to extend into the lock cylinder.

[0062] The head 201 of the key to be measured 20 is usually attached to a key ring. The first step structure can be used to avoid the key ring and other keys on the key ring, thereby avoiding any adverse effects on the positioning of the key to be measured 20.

[0063] "The portion of the second positioning plate 22 that protrudes from the third positioning plate 23 is used to support the head 201 of the key 20 to be measured" means that in the second direction, and in the direction from the second step structure to the first step structure, the portion of the second positioning plate 22 that protrudes from the third positioning plate 23 (defined as the first portion) is used to support the head 201 of the key 20 to be measured.

[0064] In one scenario, in the second direction, the length of the end of the second positioning plate 22 that forms the first step structure protruding from the first positioning plate 21 is less than the length of the head 201 of the key 20 to be measured. Preferably, when the key 20 to be measured is placed on the second positioning plate 22 and its head 201 abuts against the third positioning plate 23, the keyhole of its head 201 for threading a key ring is located outside the second positioning plate 22. Furthermore, at this time, in the second direction, the arrangement direction of the head 201 and tail 202 of the key 20 to be measured is the arrangement direction of the first step structure and the second step structure.

[0065] Furthermore, after the key 20 to be measured is placed on the second positioning plate 22, the head 201 of the key 20 can abut against the first surface of the third positioning plate 23, and the tail 202 of the key 20 can abut against the second surface of the third positioning plate 23. The first surface is the surface of the second stepped structure, and the second surface is not parallel to the first surface; moreover, the two can intersect. The second surface can be the surface of the third positioning plate 23 in a third-order direction.

[0066] exist Figure 5 Of the directions shown, the third direction is parallel to the Y-axis.

[0067] like Figure 5 As shown, in one embodiment, the second positioning plate 22 has an avoidance groove 24 on its surface opposite to the first positioning plate 21; in a first direction, the avoidance groove 24 passes through the first positioning plate 21 and the second positioning plate 22; in a second direction, the avoidance groove 24 extends to the portion of the first positioning plate 21 that protrudes from the second positioning plate 22; in a third direction, the two sides of the avoidance groove 24 are used to support the key 20 to be measured; both the first and second directions are perpendicular to the third direction.

[0068] This setup allows for better avoidance of objects such as keychains on the key 20 to be measured.

[0069] like Figure 5 As shown, in one embodiment, the third positioning plate 23 includes a first plate body 232 and a second plate body 233, the first plate body 232 and the second plate body 233 are spaced apart along a third direction, and the clearance structure 231 is the spaced area between the first plate body 232 and the second plate body 233. The clearance structure 231 is used to insert the tail 202 of the key 20 to be measured.

[0070] Wherein, the first surface and the second surface mentioned above can both be the surface of the first plate 232; or, the second surface and the second surface mentioned above can both be the surface of the first plate 232; or, the first surface is the surface of the first plate 232 and the second surface can be the surface of the second plate 233; or, the first surface is the surface of the second plate 233 and the second surface can be the surface of the first plate 232.

[0071] Furthermore, a first sub-step structure is formed between the first plate 232 and the first part, and a second sub-step structure is formed between the second plate 233 and the first part. The second step structure includes both the first and second sub-step structures.

[0072] In one embodiment, the first positioning plate 21, the second positioning plate 22, and the third positioning plate 23 are an integral structure. This facilitates the production and fabrication of the positioning component 2.

[0073] In one embodiment, the first direction is parallel to the extending direction of the receiving hole 141, and the inlet / outlet hole 142 extends along the second direction to communicate with the receiving cavity 11. Moreover, in the second direction, the first stepped structure is located between the second stepped structure and the inlet / outlet hole 142.

[0074] In one embodiment, the positioning module 10 further includes a detector for detecting whether the key 20 to be measured is placed on the positioning component 2. The detector may be installed inside a clearance hole. Alternatively, the detector may be a laser rangefinder or a contact probe sensor, etc.

[0075] This utility model embodiment also provides a measuring device, which includes a camera module 30 and a positioning module 10 as described in any of the above embodiments; the camera module 30 is used to photograph the key 20 to be measured on the positioning component 2 from the light-transmitting window 12.

[0076] In addition, the measuring device also includes a processor, which is connected to the camera module 30. The images captured by the camera module 30 can be transmitted to the processor, which can process the images to obtain the parameters of the key 20 to be measured.

[0077] In one embodiment, the camera module 30 is located outside the receiving cavity 11 to avoid interference with the insertion and removal of the key 20 to be measured.

[0078] This utility model embodiment also provides a method for measuring the parameters of a key 20 to be measured. The method includes the following steps: Step 1, taking a picture of the key 20 to be measured to obtain the overall image information of the key 20 to be measured; Step 2, extracting the image information of the tail 202 of the key 20 to be measured from the overall image information; Step 3, analyzing the tail 202 image to obtain the parameter information of the key.

[0079] In step 1, after acquiring the overall image information, noise removal, contrast enhancement, and distortion correction are performed on the overall image information to ensure that the edge information of the key image in the overall image information is complete and clear. These processing operations can all be existing technologies.

[0080] In addition, when photographing the key to be measured 20, it can be photographed from multiple angles to ensure that the overall image clearly and completely covers the tail 202 area.

[0081] In step 2, the YOLOv8 model can be used to identify the overall outline of the key 20 to be measured, and the head 201 region image in the overall image can be automatically removed, while the tail 202 region image is retained.

[0082] The specific steps include: Step 21, performing edge detection on the overall image to identify the boundary between the head 201 image and the tail 202 image; Step 22, using geometric symmetry and region segmentation algorithms to automatically ignore the head 201 region image; Step 23, performing binarization processing on the tail 202 region image to obtain clear boundary information. The processing operations in each step can be based on existing technologies.

[0083] In step 3, the parameters of the key 20 to be measured include information such as tube position, bead spacing, and key tooth depth (see reference). Figure 6 The types and identification methods of this information are all existing technologies.

[0084] In actual testing, steps 1 through 3 can be repeated multiple times for comparison of results. Potential errors are then automatically corrected to obtain the final parameters. These parameters can then be stored. All of these processing operations are based on existing technologies.

[0085] In subsequent production, the parameters can be retrieved directly when needed, allowing the corresponding processing equipment to process the key blank based on these parameters, thereby replicating the key to be copied.

[0086] This utility model embodiment also provides a key production line, including the measuring device described in any of the above embodiments. Additionally, the key production line also includes a processing device, which can process the key blank according to the parameters of the key 20 to be measured obtained by the measuring device, thereby obtaining the desired key.

[0087] It should be understood that the above-mentioned settings can also be replaced in other ways, such as:

[0088] In other embodiments, the light-transmitting window 12 may also be a transparent or semi-transparent area of ​​the housing 1, allowing light from the receiving cavity 11 to escape through the light-transmitting window 12. Alternatively, the transparent or semi-transparent area may also allow external light to enter the receiving cavity 11. In one scenario, the entire housing 1 may be made of a transparent panel.

[0089] In other embodiments, the light-transmitting window 12 and the positioning area may not be opposite each other. In this case, the light reflected by the positioning area may be reflected by a mirror or the like and then transmitted out of the housing 1 through the light-transmitting window 12 so that it can be captured by the camera module 30 outside the housing 1.

[0090] In other embodiments, the light-transmitting window 12 may also be disposed on the base plate 13.

[0091] In other embodiments, the sealing plate 15 may also be able to reciprocate linearly relative to the blocking member 14, thereby opening or closing the inlet / outlet hole 142.

[0092] In other embodiments, the third positioning plate 23 may also have only the first plate 232 or only the second plate 233.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A positioning module, characterized in that, Includes the housing and positioning components; The box body has a receiving cavity; The positioning component is located within the receiving cavity and is used to hold the key to be measured. The box body is provided with a light-transmitting window so that the camera module can take pictures of the key to be measured on the positioning component through the light-transmitting window.

2. The positioning module according to claim 1, characterized in that, The light-transmitting window is a light-transmitting hole that penetrates the box body.

3. The positioning module according to claim 1, characterized in that, The box body includes a bottom plate and a shielding component; The base plate and the shielding member are connected to form the receiving cavity; The light-transmitting window is disposed on the shielding member; The positioning component is connected to the base plate; The positioning component is used to place the area of ​​the key to be measured opposite to the light-transmitting window.

4. The positioning module according to claim 3, characterized in that, The shielding member is provided with a receiving hole, which penetrates the shielding member; In the extending direction of the receiving hole, the base plate is connected to one end of the blocking member; In the extending direction of the receiving hole, the receiving hole includes a first section hole and a second section hole that are connected. The first hole is located on the surface of the shielding member near the base plate and cooperates with the base plate to form the receiving cavity; The second hole is the light-transmitting window and is located on the surface of the shielding member opposite to the base plate.

5. The positioning module according to claim 4, characterized in that, The outer side of the shield is provided with an inlet / outlet hole, which communicates with the receiving hole. The inlet / outlet hole is used for inserting and removing the key to be measured into the receiving cavity. The box body also includes a sealing plate, which is connected to the shielding member and can move relative to the shielding member to open or close the inlet / outlet hole; The sealing plate is rotatably connected to the shielding member, and the axis around which the sealing plate rotates relative to the shielding member is parallel to the extension direction of the receiving hole.

6. The positioning module according to claim 1, characterized in that, The positioning component includes a first positioning plate, a second positioning plate, and a third positioning plate; In the first direction, the first positioning plate, the second positioning plate, and the third positioning plate are stacked in sequence and approach the light-transmitting window in sequence; In the second direction, the first positioning plate protrudes from the second positioning plate to form a first step structure; In the second direction, the second positioning plate protrudes from the third positioning plate at one end, which forms the first step structure, to form the second step structure; The surface of the second positioning plate facing away from the first positioning plate is used to place the key to be measured, and the part of the second positioning plate protruding from the third positioning plate is used to support the head of the key to be measured. The third positioning plate is used to form the second step structure at one end, which is used to abut the head of the key to be measured; the third positioning plate has a clearance structure to avoid the tail of the key to be measured. The first direction and the second direction are perpendicular.

7. The positioning module according to claim 6, characterized in that, The second positioning plate has a clearance groove on its surface opposite to the first positioning plate; in the first direction, the clearance groove penetrates both the first and second positioning plates; in the second direction, the clearance groove extends to the portion of the first positioning plate that protrudes from the second positioning plate; in the third direction, both sides of the clearance groove are used to support the key to be measured; both the first and second directions are perpendicular to the third direction; and / or, The third positioning plate includes a first plate and a second plate, which are spaced apart along a third direction. The clearance structure is the space between the first plate and the second plate, and is used to insert the tail of the key to be measured; and / or, The first positioning plate, the second positioning plate, and the third positioning plate are an integral structure.

8. A measuring device, characterized in that, Includes a camera module and a positioning module as described in any one of claims 1 to 7; The camera module is used to photograph the key to be measured on the positioning component from the light-transmitting window.

9. The measuring device according to claim 8, characterized in that, The camera module is located outside the receiving cavity.

10. A key production line, characterized in that, Includes the measuring device as described in any one of claims 8 to 9.

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