CN110940270A - Position degree detection method and detection device - Google Patents
Position degree detection method and detection device Download PDFInfo
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- CN110940270A CN110940270A CN201911063651.4A CN201911063651A CN110940270A CN 110940270 A CN110940270 A CN 110940270A CN 201911063651 A CN201911063651 A CN 201911063651A CN 110940270 A CN110940270 A CN 110940270A
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Abstract
The invention discloses a detection method and a detection device for position degree, wherein the detection method comprises the following steps: installing a product to be detected on a detection platform, detecting the relative position between the product to be detected and a preset standard component through a correlation sensor assembly, and adjusting the position of the product to be detected according to a detection result until the product to be detected is located at a detection position calibrated by the preset standard component; shooting a detection part on a product to be detected through a first visual detection device to obtain an image of the product to be detected, and determining position information of a sideline of the detection part on the image of the product to be detected relative to a reference side; and comparing the position information obtained on the image of the product to be detected with the position information of the sideline of the detection part relative to the reference side in the image of the standard product, calculating the position degree deviation, and judging whether the position degree deviation of the detection part on the product to be detected is qualified. The position detection method has the advantages of high detection efficiency and high accuracy.
Description
Technical Field
The invention relates to the technical field of processing detection of connectors, in particular to a position degree detection method and a position degree detection device.
Background
The connector is used for the power transmission and signal control and transmission functions of the control system, and the failure of any one electrical connector can cause the failure of the control system engineering, so that the reliability of the connector has great significance for ensuring the reliability of the whole system engineering.
The connector comprises a fixed end and a PIN needle extending from the fixed end, the PIN needle is a metal substance used for completing electric conduction (signal transmission) in the connector, is a key element of the connector, is mostly processed by adopting an elastic copper alloy material with good electric conductivity, and the surface of the PIN needle is plated with silver and gold to achieve the purposes of small contact resistance and corrosion resistance.
In order to ensure the reliability of the connector, the position and the size of the PIN needle on the connector must be detected before use, and if the position and the size of the PIN needle are not satisfactory, unreliable connection can be caused, and the connector cannot be used continuously. At present, a detection method of a connector PIN needle is manual detection, and has the problems of low efficiency and poor detection accuracy.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the problems of low efficiency and poor accuracy of the manual PIN detection method for the connector in the prior art, so as to provide a position degree detection method and a detection device.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a detection method of position degree comprises the following steps:
s10, mounting a product to be detected on a detection platform, detecting the relative position between the product to be detected and a preset standard component through a correlation sensor assembly, and adjusting the position of the product to be detected according to a detection result until the product to be detected is located at a detection position calibrated by the preset standard component;
step S20, shooting a detection part on the product to be detected through a first visual detection device to obtain an image of the product to be detected, and determining position information of a side line of the detection part on the image of the product to be detected relative to a reference side;
and step S30, comparing the position information obtained on the image of the product to be detected with the position information of the side line of the detection part relative to the reference side in the image of the standard product, calculating the position degree deviation, and judging whether the position degree deviation of the detection part on the product to be detected is qualified.
Further, in step S10, the predetermined standard component is mounted on a standard platform, and the correlation sensor assembly includes a transmitting part and a receiving part which are in the same line with the detection platform and the standard platform and are respectively located at two opposite sides of the detection platform and the standard platform; when the receiving part cannot receive the light rays emitted by the emitting part, obtaining a detection result that the position of the product to be detected is inconsistent with the detection position calibrated by the preset standard component, and adjusting the position of the product to be detected according to the detection result; when the light emitted by the emitting part can be received by the receiving part after passing through the preset standard component and the product to be detected, a detection result that the position of the product to be detected is located at the detection position calibrated by the preset standard component is obtained.
Further, in step S10, a first driving device for driving the detection platform to rotate around its own axis is connected below the detection platform, and the correlation sensor group sends a control signal for driving the detection platform to rotate to the first driving device according to the obtained detection result.
Further, in step S30, the method further includes: and shooting the detection part on the preset standard part through a second visual detection device to obtain a standard product image, and determining the position information of the sideline of the detection part on the standard product image relative to the reference side.
Further, in step S30, the position of the first visual inspection device or the second visual inspection device is adjusted so that the shooting angle and distance of the first visual inspection device corresponding to the product to be inspected are the same as the shooting angle and distance of the second visual inspection device corresponding to the preset standard.
Further, the first visual inspection device and the second visual inspection device have the same structure, and each of the first visual inspection device and the second visual inspection device at least comprises:
the first shooting piece is used for shooting the side face of the detection part to obtain a side face detection image of the detection part and determining the position information of a side line of the side face of the detection part relative to a side face reference side on the side face detection image;
and the second shooting piece is used for shooting the end face of the detection part to obtain an end face detection image of the detection part and determining the position information of the sideline of the end face of the detection part relative to the end face reference side on the end face detection image.
On the other hand, the invention also provides a device for detecting the position degree, which comprises:
the detection platform is used for positioning and mounting a product to be detected;
the standard platform is used for positioning and mounting a preset standard part thereon;
the correlation sensor assembly comprises a transmitting part and a receiving part which are positioned on the same straight line with the detection platform and the standard platform and are respectively positioned on two opposite sides of the detection platform and the standard platform;
the first driving device is electrically connected with the correlation sensor assembly and is controlled by a control signal sent by the correlation sensor assembly to drive the detection platform to rotate so as to enable a product to be detected on the detection platform to be located at a detection position calibrated by the preset standard component;
the first visual detection device is positioned on one side of the detection platform and comprises a first shooting assembly used for shooting the detection part of the product to be detected.
Further, one side of the standard platform is also provided with a second visual detection device, and the second visual detection device comprises a second shooting assembly for shooting the detection part of the preset standard component.
Further, the first shooting assembly and the second shooting assembly have the same structure, and the first shooting assembly comprises:
a first photographing member for photographing a first side surface of the detecting part;
the second shooting piece is used for shooting the end face of the detection part;
and the third shooting piece is used for shooting the second side surface of the detection part.
Further, the first visual inspection device further comprises a first adjusting bracket assembly for adjusting the mounting position of the first shooting assembly, and the second visual adjusting assembly further comprises a second adjusting bracket assembly for adjusting the mounting position of the second shooting assembly.
Further, the first adjusting bracket assembly and the second adjusting bracket are identical in structure, and the first adjusting bracket assembly comprises:
the first horizontal adjusting bracket comprises a first horizontal sliding rail and a first horizontal sliding block, wherein the first horizontal sliding rail is fixed on the mounting table and extends along the X-axis direction; the X-axis direction is a connecting line direction of the detection platform and the standard platform;
the first vertical adjusting bracket comprises a first vertical slide rail and a first vertical slide block, wherein the first vertical slide rail is fixed on the first horizontal slide block and extends along the Z-axis direction, and the first vertical slide block is in sliding fit with the first vertical slide rail;
the first front-back adjusting support comprises a first front-back sliding rail and a first front-back sliding block, wherein the first front-back sliding rail is fixed on the first vertical sliding block and extends along the Y-axis direction; longitudinally install first mounting panel on the first front and back slider, be equipped with the spout that extends along the Y axle direction on the first mounting panel, first shooting subassembly is followed Y axle direction slidable mounting in the spout.
Further, install on the first mounting panel and keep off first shooting subassembly is close to the first light source mounting panel of testing platform one side, be equipped with in the middle of the first light source mounting panel with one of them shooting piece position of first shooting subassembly corresponds first through-hole, first light source mounting panel is shot the one end of piece dorsad and is installed first luminous piece.
The technical scheme of the invention has the following advantages:
1. the position degree detection method provided by the invention comprises the steps of detecting the relative position between a product to be detected and a preset standard component through a correlation sensor assembly, and adjusting the product to be detected to a detection position calibrated with the preset standard component according to a detection result; then, shooting a detection part on a product to be detected by the first visual detection device to obtain an image of the product to be detected, and determining position information of a sideline of the detection part on the image of the product to be detected relative to a reference side; finally, comparing the position information obtained on the image of the product to be detected with the position information of the side line of the detection part relative to the reference side in the image of the standard product, calculating the position degree deviation, and judging whether the position degree deviation of the detection part on the product to be detected is qualified or not, thereby completing the detection of the product to be detected; the detection method has the advantages of high detection precision, high automation degree, high efficiency and low omission factor, and can detect the specific numerical value of the position degree deviation of the detection part of the product to be detected, thereby facilitating the analysis of the qualification rate of the large-batch product to be detected and the proportion of each interval of the position degree deviation.
2. According to the detection method of the position degree, the second visual detection device can shoot the detection part on the preset standard part in real time, and position information of the side line of the detection part on the real-time standard product image relative to the reference side is obtained, so that the influence of the detection result of the product to be detected due to the fact that the standard product image does not conform to the actual standard product image can be avoided.
3. According to the position degree detection method provided by the invention, the first shooting piece can shoot the side face of the detection part, the second shooting piece can shoot the end face of the detection part, and the first shooting piece and the second shooting piece can be simultaneously carried out, so that the position degree detection can be carried out on the whole size of the detection part at the same time, and the detection efficiency and the detection result accuracy are greatly improved.
4. The invention provides a position degree detection device, after a product to be detected is installed on a detection platform, when the product to be detected does not correspond to a detection position calibrated by a preset standard component, light emitted by an emitting part of an opposite-jet sensor component passes through the preset standard component on the standard platform and then can be blocked by the product to be detected on the detection platform, a receiving part of the opposite-jet sensor component cannot receive the light emitted by the emitting part, a control signal is generated by the receiving part to control a first driving device to drive the detection platform to rotate, the detection platform drives the product to be detected to rotate, when the product to be detected rotates to the detection position calibrated by the preset standard component, the light emitted by the emitting part of the opposite-jet sensor component passes through the preset standard component on the standard platform and the product to be detected on the detection platform to be received by the receiving part, the receiving part generates another control signal to control, therefore, the product to be detected is adjusted to the calibrated detection position, and the detection precision of the product can be improved; then, shooting a detection part on a product to be detected by the first visual detection device to obtain an image of the product to be detected, and determining position information of a sideline of the detection part on the image of the product to be detected relative to a reference side; finally, comparing the position information obtained on the image of the product to be detected with the position information of the side line of the detection part relative to the reference side in the image of the standard product, calculating a position degree deviation value, and judging whether the position degree deviation of the detection part on the product to be detected is qualified or not, thereby completing the detection of the product to be detected; the detection device has the advantages of high detection precision, high automation degree, high efficiency and low omission factor, can detect the specific numerical value of the position degree deviation of the detection part of the product to be detected, and is convenient to analyze the qualification rate of the large-batch product to be detected and the proportion of each interval of the position degree deviation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of a position degree detection device according to an embodiment of the present invention;
FIG. 2 is a side detection view of the PIN PIN of the connector on the detection platform, which is shot by the first shooting piece in the embodiment of the invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a PIN end face detection diagram of a connector on a detection platform and captured by a second camera in the embodiment of the invention;
fig. 5 is an enlarged view at B in fig. 4.
Description of reference numerals: 1. an installation table; 2. a detection platform; 3. a standard platform; 4. a correlation sensor assembly; 41. a transmitting section; 32. a receiving section; 5. a first visual inspection device; 51. a first photographing component; 511. A first camera; 512. a second camera; 52. a first adjusting bracket assembly; 521. a first horizontal slide rail; 522. a first horizontal slider; 523. a first vertical slide rail; 524. a first vertical slide block; 525. a first front and rear slide rail; 526. a first front and rear slider; 527. a first mounting plate; 5271. a first chute; 528. a first light source mounting plate; 529. a first light emitting element; 6. a second visual detection device; 61. a second photographing component; 611. a fourth shot; 612. a fifth shooting part; 62. a second adjusting bracket assembly; 621. a second horizontal slide rail; 622. a second horizontal slider; 623. a second vertical slide rail; 624. a second vertical slide block; 625. a second front and rear slide rail; 626. a second front and rear slider; 627. a second mounting plate; 7. a first driving device; 8. a second driving device;
101. detecting a side surface of the component; 102. a side reference edge; 103. detecting a component end face; 104. end face reference edge
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, an embodiment of the present invention provides a method for detecting a position degree, including the following steps:
step S10, mounting the product to be detected on the detection platform 2, detecting the relative position between the product to be detected and the preset standard component through the correlation sensor component 4, and adjusting the position of the product to be detected according to the detection result until the product to be detected is located at the detection position calibrated by the preset standard component;
step S20, shooting a detection part on a product to be detected through the first visual detection device 5 to obtain an image of the product to be detected, and determining position information of a sideline of the detection part on the image of the product to be detected relative to a reference side;
and step S30, comparing the position information obtained on the image of the product to be detected with the position information of the side line of the detection part relative to the reference side in the image of the standard product, calculating the position degree deviation, and judging whether the position degree deviation of the detection part on the product to be detected is qualified.
The method for detecting the position degree provided by the embodiment of the invention comprises the steps of detecting the relative position between a product to be detected and a preset standard component through the correlation sensor component 4, and adjusting the product to be detected to a detection position calibrated with the preset standard component according to a detection result; then, the first visual detection device 5 shoots a detection part on a product to be detected to obtain an image of the product to be detected, and determines position information of a sideline of the detection part on the image of the product to be detected relative to a reference side; and finally, comparing the position information obtained on the image of the product to be detected with the position information of the sideline of the detection part relative to the reference side in the image of the standard product, calculating the deviation of the position degree, and judging whether the deviation of the position degree of the detection part on the product to be detected is qualified or not, thereby completing the detection of the product to be detected. The detection method has the advantages of high detection precision, high automation degree, high efficiency and low omission factor, and can detect the specific numerical value of the position degree deviation of the detection part of the product to be detected, thereby facilitating the analysis of the qualification rate of the large-batch product to be detected and the proportion of each interval of the position degree deviation.
In the present embodiment, in step S10, the predetermined standard component is installed on the standard platform 3, and the correlation sensor assembly 4 includes the emitting part 41 and the receiving part 32 which are located on the same straight line with the detection platform 2 and the standard platform 3 and are respectively located on two opposite sides of the detection platform 2 and the standard platform 3; when the receiving part 32 cannot receive the light rays emitted by the emitting part 41, obtaining a detection result that the position of the product to be detected is inconsistent with the detection position calibrated by the preset standard component, and adjusting the position of the product to be detected according to the detection result; when the light emitted by the emitting portion 41 passes through the preset standard component and the product to be detected and can be received by the receiving portion 32, a detection result that the position of the product to be detected is at the detection position calibrated by the preset standard component is obtained. By the method, the position of the product to be detected can be accurately positioned before the product to be detected is detected, so that the accuracy of a subsequent position detection result is improved.
In this embodiment, a first driving device 7 for driving the detection platform 2 to rotate around its own axis is connected below the detection platform 2, and the correlation sensor group sends a control signal for driving the detection platform 2 to rotate to the first driving device 7 according to the obtained detection result. After a product to be detected is mounted on the detection platform 2, when the product to be detected does not correspond to the detection position calibrated by the preset standard component, light emitted by the emitting part 41 of the correlation sensor assembly 4 passes through the preset standard component on the standard platform 3 and then can be blocked by the product to be detected on the detection platform 2, the light emitted by the emitting part 41 cannot be received by the receiving part 32 of the correlation sensor assembly 4, the receiving part 32 generates a control signal to control the first driving device 7 to drive the detection platform 2 to rotate, the detection platform 2 drives the product to be detected to rotate, when the product to be detected rotates to the detection position calibrated by the preset standard component, the light emitted by the emitting part 41 of the correlation sensor assembly 4 passes through the preset standard component on the standard platform 3 and the product to be detected on the detection platform 2 and is received by the receiving part 32, the receiving part 32 generates another control signal to control the first driving device 7 to, so as to adjust the product to be detected to the calibrated detection position.
In this embodiment, in step S30, the standard product image is obtained by real-time shooting the detection component on the preset standard component by the second visual inspection device 6, and the position information of the edge line of the detection component on the standard product image relative to the reference edge is determined. The second visual detection device 6 is adopted to shoot the detection part on the preset standard component in real time to obtain the standard product image, so that the influence on the detection result of the product to be detected due to the fact that the standard product image is not in line with the actual standard product image can be avoided. Further, the position of the first visual detection device 5 or the second visual detection device 6 can be adjusted, so that the shooting angle and the distance of the first visual detection device 5 corresponding to the product to be detected are the same as the shooting angle and the distance of the second visual detection device 6 corresponding to the preset standard component; the shooting angles and distances of the first visual detection device 5 and the second visual detection device 6 are the same, so that the product image to be detected and the standard product image with the same size and definition can be shot, and the two images can be compared and analyzed more conveniently.
In the present embodiment, the first and second visual inspection devices 5 and 6 are identical in structure, and the first visual inspection device 5 includes at least a first camera 511, a second camera 512, and a third camera (not shown); the first shooting element 511 is used for shooting the side face of the detection part to obtain a side face detection image of the detection part, and determining the position information of the edge of the side face 101 of the detection part relative to the side face reference edge 102 on the side face detection image; the second photographing device 512 is used for photographing the end face of the detection component, obtaining an end face detection image of the detection component, and determining the position information of the borderline of the end face 103 of the detection component relative to the end face reference side 104 on the end face detection image. Since the first photographing part 511 and the second photographing part 512 can be performed simultaneously, the overall size of the detecting part can be detected at the same time, and the detecting efficiency and the accuracy of the detecting result are greatly improved.
Referring to fig. 2 to 5, in a specific implementation manner of this embodiment, a connector is used as a product to be detected, a PIN extending outward from the connector is a detection portion of the product to be detected, a standard component is preset as a connector product with a standard size requirement, a side line of a detection component is specifically each edge of the PIN, and a reference edge is an edge that is arranged on the detection platform 2, corresponds to the PIN of the connector in position, and can be photographed by the first visual detection device 5.
When detecting the position degree of a PIN needle on a connector, firstly installing the connector on a detection platform 2, detecting the relative position between the connector and a preset standard component through a correlation sensor component 4, and rotating the connector to a detection position calibrated with the preset standard component through a first driving device 7 according to a detection result; then, the first shooting part 511 of the first visual inspection device 5 shoots the side face of the PIN to obtain a PIN side face detection image, and position information of two edges of the PIN side face relative to two side face reference edges 102 is marked in the PIN side face detection image, so that the circumferential tangential deviation size of the PIN on the connector to be inspected relative to a preset standard part is obtained; meanwhile, the second shooting element 512 of the first visual inspection device 5 shoots the end face of the PIN through the reflection action of the prism device located right below the PIN end face to light to obtain a PIN end face inspection image, and position information of four edges of the PIN end face, which are respectively relative to four end face reference edges 104, is marked in the PIN end face inspection image, so that the offset size of the PIN end face on the connector to be inspected relative to a preset standard element is obtained. In addition, after the connector rotates for a certain angle on the detection platform 2, the other side of the PIN of the connector rotates to the detection position, and the third shooting piece of the first visual detection device 5 can shoot the other side of the PIN to obtain a detection image and an offset size of the other side of the PIN.
On the other hand, the embodiment of the invention also provides a position degree detection device, which comprises a mounting table 1, a detection platform 2 and a standard platform 3 which are arranged on one side of the mounting table 1, and a first visual detection device 5 and a second visual detection device 6 which are arranged on the other side of the mounting table 1. Wherein, the detection platform 2 is used for positioning and installing a product to be detected thereon; the standard platform 3 is used for positioning and mounting a preset standard part thereon; the correlation sensor assembly 4 comprises a transmitting part 41 and a receiving part 32 which are in the same straight line with the detection platform 2 and the standard platform 3 and are respectively positioned at two opposite sides of the detection platform 2 and the standard platform 3, and the transmitting part 41 and the receiving part 32 are both arranged on the mounting table 1 through a bracket.
In this embodiment, the first visual inspection device 5 is disposed corresponding to the inspection platform 2, and is configured to photograph a product to be inspected on the inspection platform 2; the second visual detection device 6 is arranged corresponding to the standard platform 3 and is used for shooting a preset standard part on the standard platform 3. The detection platform 2 and the standard platform 3 have the same structure size, and the first visual detection device 5 and the second visual detection device 6 also have the same structure size. The second visual detection device 6 can shoot the detection part on the preset standard part in real time, position information of the sideline of the detection part on the real-time standard product image relative to the reference side is obtained, and the influence on the detection result of the product to be detected due to the fact that the standard product image is not in line with the actual standard product image can be avoided.
In the present embodiment, the first visual inspection device 5 includes a first camera assembly 51 and a first adjusting bracket assembly 52. Wherein, the first adjusting bracket assembly 52 is mounted on the mounting table 1 for adjusting the mounting position of the first photographing assembly 51. The first adjustable bracket assembly 52 includes a first horizontal adjustable bracket, a first vertical adjustable bracket, and a first fore-aft adjustable bracket. The first horizontal adjusting bracket comprises a first horizontal sliding rail 521 fixed on the mounting table 1 and extending along the X-axis direction and a first horizontal sliding block 522 in sliding fit with the first horizontal sliding rail 521; wherein, the X-axis direction is the connecting line direction of the detection platform 2 and the standard platform 3. The first vertical adjustment bracket includes a first vertical slide rail 523 fixed to the first horizontal slide block 522 and extending in the Z-axis direction, and a first vertical slide block 524 slidably engaged with the first vertical slide rail 523. The first fore-and-aft adjustment bracket includes a first fore-and-aft slide rail 525 fixed to the first vertical slide block 524 and extending in the Y-axis direction, and a first fore-and-aft slide block 526 slidably engaged with the first fore-and-aft slide rail 525. First mounting panel 527 is vertically installed on first preceding back slider 526, is equipped with the spout that extends along the Y axle direction on the first mounting panel 527, and first shooting component 51 is in the spout along Y axle direction slidable mounting. The first adjusting bracket component 52 formed by the first horizontal adjusting bracket, the first vertical adjusting bracket and the first front and back adjusting bracket can adjust the position of the first shooting component 51 in the xyz shaft space at will, so that the first shooting component 51 can shoot a product to be detected at the best shooting position relative to the detection platform 2, thereby improving the definition of the image of the product to be detected obtained by shooting and further improving the accuracy of position detection.
Specifically, the first shooting device at least comprises a first shooting piece 511 and a second shooting piece 512 which are slidably mounted on the sliding chute; the first shooting part 511 is used for shooting a first side face of the detection component on the product to be detected, and the second shooting part 512 is used for shooting an end face of the detection component on the product to be detected. A prism device (not shown) located right below the end surface 103 of the detection component and a through hole corresponding to the prism device and the second shooting part 512 are further arranged in the detection platform 2, and light rays of the end surface 103 of the detection component are reflected by the prism device for 90 degrees and then emitted through the through hole to be shot by the second shooting part 512, so that an end surface detection image of the detection component is obtained. The first shooting piece 511 can shoot the side face of the detection part on the product to be detected, the second shooting piece 512 can shoot the end face of the detection part on the product to be detected, and the first shooting piece 511 and the second shooting piece 512 can be conducted simultaneously, so that the whole size of the detection part on the product to be detected can be detected at the same time, and the detection efficiency and the detection result accuracy are greatly improved. In some embodiments, the first photographing device may include a third photographing element, and after the product to be detected rotates by a predetermined angle along with the detection platform 2, the second side surface of the detection part on the product to be detected rotates to the detection position, and the third photographing element may photograph the second side surface of the detection part to obtain a detection image and an offset size of the second side surface of the detection part.
The first light source mounting plate 528 which is arranged on one side of the first shooting assembly 51 close to the detection platform 2 is blocked, a first through hole corresponding to the position of one shooting piece of the first shooting assembly 51 is formed in the middle of the first light source mounting plate 528, and a first light emitting piece 529 is arranged at one end, back to the shooting piece, of the first light source mounting plate 528. The arrangement of the first light-emitting component 529 can adjust the backlight intensity of a product to be detected on the detection platform 2, and can avoid the influence of light on the imaging effect of an image, so that errors can occur when the size of the product to be detected is judged.
In the present embodiment, the second visual inspection device 6 includes a second camera assembly 61 and a second adjustment bracket assembly 62. Wherein, the second adjusting bracket assembly 62 is mounted on the mounting table 1 for adjusting the mounting position of the second photographing assembly 61. The second adjustable bracket assembly 62 includes a second horizontal adjustable bracket, a second vertical adjustable bracket, and a second fore-aft adjustable bracket. The second horizontal adjusting bracket comprises a second horizontal sliding rail 621 which is fixed on the mounting table 1 and extends along the X-axis direction, and a second horizontal sliding block 622 which is in sliding fit with the second horizontal sliding rail 621; wherein, the X-axis direction is the connecting line direction of the detection platform 2 and the standard platform 3. The second vertical adjusting bracket comprises a second vertical slide rail 623 fixed on the second horizontal slide block 622 and extending along the Z-axis direction, and a second vertical slide block 624 slidably engaged with the second vertical slide rail 623. The second front-rear adjusting bracket includes a second front-rear slide rail 625 fixed on the second vertical slide block 624 and extending along the Y-axis direction, and a second front-rear slide block 626 slidably engaged with the second front-rear slide rail 625. The second mounting plate 627 is longitudinally mounted on the first front and rear sliding blocks 526, a sliding groove extending along the Y-axis direction is formed in the second mounting plate 627, and the second shooting assembly 61 is slidably mounted in the sliding groove along the Y-axis direction. By the second horizontal adjustment support, second regulation support subassembly 62 that second vertical adjustment support and second front and back regulation support constitute can carry out arbitrary regulation to the position of subassembly 61 in xyz axle space, make the second shoot subassembly 61 can shoot the subassembly 3 with the best shooting position to predetermineeing the standard component relatively, thereby improve the definition of the standard component product image that the shooting obtained, the convenience will be shot the standard product image that obtains and wait to detect the product image and then carry out contrastive analysis, thereby improve the precision that the position accuracy detected.
In this embodiment, the first horizontal sliding rail 521 and the second horizontal sliding rail 621 are the same sliding rail, and the first horizontal sliding block 522 and the second horizontal sliding block 622 are respectively slidably mounted on the same sliding rail. So set up, can make whole detection device compacter, reduce occupation space's size.
Specifically, the second camera includes at least a fourth camera 611 and a fifth camera 612 slidably mounted on the sliding chute; the fourth camera 611 is configured to capture a first side surface of the detection component on the preset standard, and the fifth camera 612 is configured to capture an end surface of the detection component on the preset standard. A prism device (not shown) located right below the end face of the detection component and a through hole corresponding to the prism device and the fifth shooting element 612 are further arranged in the standard platform 3, light rays on the end face of the detection component are reflected by the prism device for 90 degrees and then are shot by the second shooting element 512 through the through hole, and therefore an end face detection image of the detection component on the preset standard component is obtained. In some embodiments, the second photographing device may include a sixth photographing part, and after the preset standard rotates with the standard platform 3 by a predetermined angle, the second side surface of the detection part on the preset standard rotates to the detection position, and the sixth photographing part may photograph the second side surface of the detection part to obtain a detection image and an offset size of the second side surface of the detection part.
The second light source mounting plate which is arranged on the side, close to the standard platform 3, of the second shooting component 61 is provided with a blocking part, a second through hole corresponding to the position of one shooting part of the second shooting component 61 is formed in the middle of the second light source mounting plate, and a second light-emitting part is arranged at one end, back to the shooting part, of the second light source mounting plate. The backlight degree of the preset standard component on the standard platform 3 can be adjusted by the second light-emitting component, so that the imaging effect of the image can be prevented from being influenced by the light, and the error which appears when the size of a product to be detected is judged is caused.
To sum up, in the position detecting apparatus provided in the embodiment of the present invention, after the product to be detected is mounted on the detecting platform 2, when the product to be detected does not correspond to the detection position calibrated by the preset standard, the light emitted from the emitting portion 41 of the corresponding sensor assembly 4 passes through the preset standard on the standard platform 3 and is then blocked by the product to be detected on the detecting platform 2, the light emitted from the emitting portion 41 cannot be received by the receiving portion 32 of the corresponding sensor assembly, the receiving portion 32 generates a control signal to control the first driving device 7 to drive the detecting platform 2 to rotate, the detecting platform 2 drives the product to be detected to rotate, when the product to be detected rotates to the detection position calibrated by the preset standard, the light emitted from the emitting portion 41 of the corresponding sensor assembly 4 passes through the preset standard on the standard platform 3 and the product to be detected on the detecting platform 2 is received by the receiving portion 32, the receiving part 32 generates another control signal to control the first driving device 7 to stop rotating, so that the product to be detected is adjusted to the calibrated detection position, and the detection precision of the product can be improved; then, the first visual detection device 5 shoots a detection part on a product to be detected to obtain an image of the product to be detected, and determines position information of a sideline of the detection part on the image of the product to be detected relative to a reference side; finally, comparing the position information obtained on the image of the product to be detected with the position information of the side line of the detection part relative to the reference side in the image of the standard product, calculating a position degree deviation value, and judging whether the position degree deviation of the detection part on the product to be detected is qualified or not, thereby completing the detection of the product to be detected; the detection device has the advantages of high detection precision, high automation degree, high efficiency and low omission factor, can detect the specific numerical value of the position degree deviation of the detection part of the product to be detected, and is convenient to analyze the qualification rate of the large-batch product to be detected and the proportion of each interval of the position degree deviation.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. A detection method of position degree is characterized by comprising the following steps:
s10, mounting a product to be detected on a detection platform (2), detecting the relative position between the product to be detected and a preset standard component through a correlation sensor assembly (4), and adjusting the position of the product to be detected according to a detection result until the product to be detected is located at a detection position calibrated by the preset standard component;
step S20, shooting a detection part on the product to be detected through a first visual detection device (5) to obtain an image of the product to be detected, and determining position information of a side line of the detection part on the image of the product to be detected relative to a reference side;
and step S30, comparing the position information obtained on the image of the product to be detected with the position information of the side line of the detection part relative to the reference side in the image of the standard product, calculating the position degree deviation, and judging whether the position degree deviation of the detection part on the product to be detected is qualified.
2. The method for detecting the position degree according to claim 1, wherein in the step S10, the preset standard is installed on a standard platform (3), and the correlation sensor assembly (4) comprises a transmitting part (41) and a receiving part (32) which are in the same line with the detection platform (2) and the standard platform (3) and are respectively positioned at two opposite sides of the detection platform (2) and the standard platform (3); when the receiving part (32) cannot receive the light rays emitted by the emitting part (41), obtaining a detection result that the position of the product to be detected is inconsistent with the detection position calibrated by the preset standard component, and adjusting the position of the product to be detected according to the detection result; when the light emitted by the emitting part (41) passes through the preset standard component and the product to be detected and can be received by the receiving part (32), a detection result that the position of the product to be detected is located at the detection position calibrated by the preset standard component is obtained.
3. The method for detecting the position according to claim 2, wherein in step S10, a first driving device (7) for driving the detection platform (2) to rotate around its own axis is connected below the detection platform (2), and the correlation sensor group sends a control signal for driving the detection platform (2) to rotate to the first driving device (7) according to the obtained detection result.
4. The method for detecting the position degree according to claim 1, wherein the step S30 further includes: and shooting the detection part on the preset standard part through a second visual detection device (6) to obtain a standard product image, and determining the position information of the sideline of the detection part on the standard product image relative to the reference side.
5. The method for detecting positional accuracy according to claim 4, wherein in the step S30, the position of the first visual inspection device (5) or the second visual inspection device (6) is adjusted so that the shooting angle and distance of the first visual inspection device (5) corresponding to the product to be detected are the same as the shooting angle and distance of the second visual inspection device (6) corresponding to the preset standard.
6. The method for detecting position according to claim 5, wherein the first visual detection device (5) and the second visual detection device (6) have the same structure, and each of them comprises at least:
the first shooting piece (511) is used for shooting the side surface of the detection part to obtain a side surface detection image of the detection part and determining the position information of the side line of the side surface (101) of the detection part relative to the side surface reference side (102) on the side surface detection image;
and the second shooting piece (512) is used for shooting the end face of the detection component to obtain an end face detection image of the detection component, and determining the position information of the side line of the end face (103) of the detection component relative to the end face reference side (104) on the end face detection image.
7. A device for detecting a position degree, comprising:
the detection platform (2) is used for positioning and mounting a product to be detected thereon;
the standard platform (3) is used for positioning and mounting a preset standard part thereon;
the correlation sensor assembly (4) comprises a transmitting part (41) and a receiving part (32) which are positioned on the same straight line with the detection platform (2) and the standard platform (3) and are respectively positioned at two opposite sides of the detection platform (2) and the standard platform (3);
the first driving device (7) is electrically connected with the correlation sensor assembly (4) and is controlled by a control signal sent by the correlation sensor assembly (4) to drive the detection platform (2) to rotate so as to enable a product to be detected on the detection platform (2) to be located at a detection position calibrated by the preset standard component;
the first visual detection device (5) is positioned on one side of the detection platform (2) and comprises a first shooting assembly (51) used for shooting a detection part of the product to be detected.
8. The device for detecting the position degree according to the claim 7 is characterized in that a second visual detection device (6) is further arranged on one side of the standard platform (3), and the second visual detection device (6) comprises a second shooting component (61) for shooting a detection part of the preset standard component.
9. The device for detecting the position degree according to claim 8, wherein the first shooting assembly (51) and the second shooting assembly (61) have the same structure, and the first shooting assembly (51) comprises:
a first photographing part (511) for photographing a first side surface of the detecting part;
and a second photographing member (512) for photographing an end surface of the detection part.
10. The device for detecting positional accuracy according to claim 9, wherein the first visual detecting device (5) further includes a first adjusting bracket assembly (52) for adjusting a mounting position of the first photographing assembly (51), and the second visual adjusting assembly further includes a second adjusting bracket assembly (62) for adjusting a mounting position of the second photographing assembly (61).
11. The device for detecting positional accuracy according to claim 10, wherein the first adjustment bracket assembly (52) and the second adjustment bracket are identical in structure, and the first adjustment bracket assembly (52) includes:
the first horizontal adjusting bracket comprises a first horizontal sliding rail (521) which is fixed on the mounting table (1) and extends along the X-axis direction and a first horizontal sliding block (522) which is in sliding fit with the first horizontal sliding rail (521); wherein the X-axis direction is the connecting line direction of the detection platform (2) and the standard platform (3);
the first vertical adjusting bracket comprises a first vertical sliding rail (523) which is fixed on the first horizontal sliding block (522) and extends along the Z-axis direction and a first vertical sliding block (524) which is in sliding fit with the first vertical sliding rail (523);
the first front and rear adjusting bracket comprises a first front and rear sliding rail (525) which is fixed on the first vertical sliding block (524) and extends along the Y-axis direction and a first front and rear sliding block (526) which is in sliding fit with the first front and rear sliding rail (525); longitudinally install first mounting panel (527) on first front and back slider (526), be equipped with the spout that extends along the Y axle direction on first mounting panel (527), first shooting subassembly (51) are followed Y axle direction slidable mounting in the spout.
12. The device for detecting the position degree according to claim 11, wherein a first light source mounting plate (528) blocking one side of the first shooting assembly (51) close to the detection platform (2) is mounted on the first mounting plate (527), a first through hole corresponding to one shooting piece of the first shooting assembly (51) is formed in the middle of the first light source mounting plate (528), and a first light emitting piece (529) is mounted at one end, opposite to the shooting piece, of the first light source mounting plate (528).
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