CN114755430A - Automatic detection device of probe - Google Patents

Abstract

The invention discloses an automatic detection device of a probe, which comprises a rack, a positioning mechanism, a feeding mechanism, a movement mechanism, a visual detection mechanism and an AI model, wherein the positioning mechanism is arranged on the rack, the feeding mechanism is arranged outside the rack, the feeding mechanism is used for placing a product on the positioning mechanism, the movement mechanism is arranged on the rack, the movement mechanism is connected with the visual detection mechanism and is used for driving the visual detection mechanism to move, the visual detection mechanism is positioned above the positioning mechanism, and the visual detection mechanism is electrically connected with the AI model.

Description

Automatic detection device of probe

Technical Field

The invention relates to the field of visual detection, in particular to an automatic detection device for a probe.

Background

The probe is a contact medium for electrical test and is a high-end precise electronic hardware component. An assembled product (which may be a PCB board) is usually loaded with thousands of probes, which currently need to be manually inspected by a human with the aid of a microscope to see if there are the following problems: firstly, whether the probe is neglected to be installed or not is judged; secondly, whether the probe is installed reversely; thirdly, whether the surface of the probe is damaged or not; and fourthly, whether foreign matters such as flocks exist on the surface of the probe or not. But the manual detection efficiency is very low and there is a great risk of missed detection.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide the automatic detection device of the probe, which has the advantages of simple structure and high detection efficiency, effectively reduces the missed detection risk and improves the detection accuracy.

In order to achieve the above purposes, the invention adopts the technical scheme that: the utility model provides an automatic checkout device of probe, includes frame, positioning mechanism, feed mechanism, motion, visual inspection mechanism and AI model, positioning mechanism sets up in the frame, feed mechanism sets up outside the frame and feed mechanism is used for placing the product on positioning mechanism, motion sets up in the frame and motion is connected with visual inspection mechanism and is used for driving its motion, visual inspection mechanism is located positioning mechanism's top and visual inspection mechanism still links with the AI model electricity.

The automatic detection device for the probes has the advantages that during operation, a feeding mechanism conveys products loaded with thousands of probes, the products can be placed on a positioning mechanism, and the positioning mechanism positions the products. The movement mechanism is started to drive the visual detection mechanism to move (so that the visual detection mechanism is aligned with a certain probe on a product), the visual detection mechanism can photograph each probe on the product, and then an AI detection algorithm is carried out on an AI model of the classification model so as to obtain data of each probe on the product (namely, whether the probe is neglected to be installed or not, whether the probe is reversely installed or not, whether the surface of the probe is damaged or not, and whether foreign matters such as burrs and the like exist on the surface of the probe or not), and finally the detection of the product is finished. The establishment of the AI model is prior art and will not be described herein too much. The automatic detection device of the probe with the structure has a simple structure, can solve the problems of neglected loading and reverse loading in the manual assembly process, damage on the surface of the probe, existence of foreign matters such as burrs and the like, and realizes zero missing detection and zero misjudgment; the detection efficiency is high, the missing detection risk is effectively reduced, and the detection accuracy is improved. Automatic detection is used for replacing manual detection, and the automatic detection contributes to the realization of the automation of industrial production.

The positioning mechanism comprises a placing carrier and a position linear module, wherein the placing carrier comprises a lower base, a hollow frame-shaped upper cover plate and a second upper cover plate, the hollow frame-shaped upper cover plate and the second upper cover plate are detachably connected with the lower base and matched with the lower base, the position linear module is arranged along the width direction of the rack, a sliding table of the position linear module is connected with the lower base and can drive the lower base to slide, a protruding component is detachably arranged on the lower base and is used for placing a product, and the hollow frame-shaped upper cover plate or the second upper cover plate can be locked on the lower base and can press the product on the protruding component. The product detection of a plurality of different models can be supported.

The invention has the further improvement that the bulge component comprises a plurality of clip frames with the diameters sequentially increased, the clip frames can be sequentially sleeved into a whole, and each clip frame can be detachably arranged on the lower base. The product detection of a plurality of different models can be supported. Aiming at the probes with the same or different specifications (the probes with different specifications need to be loaded with different AI models), the products with different models can be sleeved by selecting a certain number of clip frames according to requirements, and the clip frames with certain number are locked on the lower base to place the products.

The invention is further improved in that a plurality of layers of jacks are uniformly arranged on the lower base, each clip frame is provided with an inserting column, and each inserting column can be clamped into the jack. Through the jack and the inserted column, the lower base and the clip frame are detachably connected.

The invention is further improved in that a first screw hole is formed in the lower base, second screw holes are formed in the hollow frame-shaped upper cover plate and the second upper cover plate, and the first screw hole and the second screw hole can be connected through bolts. Through first screw and second screw, lower base and cavity frame shape upper cover plate or second upper cover plate realize dismantling the connection.

As a further improvement of the invention, the feeding mechanism is a six-shaft mechanical arm which is rotatably arranged outside the machine frame and is used for placing the product on the convex component of the positioning mechanism. The six-axis manipulator is started to automatically clamp the product onto the protruding component, and then a person locks the hollow frame-shaped upper cover plate or the second upper cover plate onto the lower base.

As a further improvement of the present invention, the visual inspection assembly includes a main inspection camera, an inspection lens and a camera controller, the main inspection camera and the inspection lens are connected, the inspection lens is disposed on the Z-axis linear module of the motion mechanism, the camera controller is electrically connected to both the main inspection camera and the AI model, and the camera controller is used for receiving the image information transmitted by the main inspection camera and transmitting the processed and analyzed image information to the AI model. The comprehensive photographing of thousands of probe products loaded is realized through the main detection camera; and carrying out AI detection algorithm through an AI model of the classification model so as to obtain data of each probe on the product, and completing the detection of the product.

The invention further improves the system and the method, and the system further comprises a light source part, wherein the light source part comprises an annular light source and a light source controller, the annular light source is arranged on one side of the detection lens far away from the main detection camera, and the light source controller is arranged on the frame and is used for controlling the opening and closing of the annular light source.

As a further improvement of the invention, the device also comprises an auxiliary detection camera which is arranged on one side of the frame and electrically connected with the camera controller.

The further improvement of the invention is that the movement mechanism comprises an X-axis linear module and a Z-axis linear module, the X-axis linear module is arranged along the length direction of the rack, a sliding block of the X-axis linear module is connected with the Z-axis linear module and can drive the Z-axis linear module to slide, the Z-axis linear module is arranged along the height direction of the rack, and a sliding block of the Z-axis linear module is connected with a detection lens on the visual detection mechanism and can drive the Z-axis linear module to slide. The X-axis linear module and the Z-axis linear module realize that the visual detection assembly moves in the length direction and the height direction, so that the visual detection mechanism is convenient to align to a certain probe on a product, and the detection efficiency is further improved.

Drawings

FIG. 1 is a block diagram of a first embodiment of the present invention;

FIG. 2 is a block diagram of the motion mechanism and visual inspection assembly after assembly in accordance with one embodiment of the present invention;

FIG. 3 is a cross-sectional view of a first embodiment of the present invention;

fig. 4 is a top view of a second embodiment of the present invention.

In the figure:

1. a frame; 2. a positioning mechanism; 21. placing a carrier; 211. a lower base; 212. a hollow frame-shaped upper cover plate; 213. a second upper cover plate; 22. a position straight line module; 3. a feeding mechanism; 4. a motion mechanism; 41. an X-axis linear module; 42. a Z-axis linear module; 5. a visual inspection assembly; 51. a main detection camera; 52. detecting a lens; 6. a clip frame; 61. inserting a column; 7. a jack; 8. a first screw hole; 9. a second screw hole; 10. an annular light source; 11. an auxiliary detection camera; 12. a sliding table; 13. and (4) an AI model.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Example one

Referring to fig. 1-3, the automatic detection device for a probe of this embodiment includes a rack 1, a positioning mechanism 2, a feeding mechanism 3, a moving mechanism 4, a visual detection mechanism, and an AI model 13, where the positioning mechanism 2 is disposed on the rack 1, the feeding mechanism 3 is disposed outside the rack 1, the feeding mechanism 3 is used for placing a product on the positioning mechanism 2, the moving mechanism 4 is disposed on the rack 1, the moving mechanism 4 is connected with the visual detection mechanism and is used for driving the movement of the visual detection mechanism, the visual detection mechanism is located above the positioning mechanism 2, and the visual detection mechanism is electrically connected with the AI model 13.

Since the probe diameter is very small, it is difficult to distinguish between the positive and negative by the human eye, and therefore the automatic inspection apparatus using the probe of this example is employed. During operation, feed mechanism 3 carries the product that has thousands of probes to can place this product on positioning mechanism 2, positioning mechanism 2 fixes a position this product. The movement mechanism 4 is started to drive the visual detection mechanism to move (so that the visual detection mechanism is aligned with a certain probe on a product), the visual detection mechanism can photograph each probe on the product, and then an AI detection algorithm is carried out through the AI model 13 of the classification model so as to obtain data of each probe on the product (namely, whether the probe is neglected to be installed or not, whether the probe is reversely installed or not, whether the surface of the probe is damaged or not, and whether foreign matters such as flocks and the like exist or not), and finally the detection of the product is finished.

Has the characteristics of multiple algorithms and flexibility. The multi-algorithm can be used for detecting by using a traditional shape matching algorithm (a visual detection mechanism) due to different shapes of the front surface and the back surface of the probe; however, the pin area of some products is irregular, and there is an area where no pin is needed, and the conventional shape matching algorithm may cause misjudgment. Therefore, the AI model 13 using the classification model is added. Not only can products which cannot be detected by the traditional shape matching algorithm be detected, but also the detection result of the traditional shape matching algorithm and the detection result of the AI model 13 can be subjected to AND/OR processing, and zero misjudgment and zero missing judgment are further realized. And secondly, the device is flexible and can support detection of various products of different models. Aiming at the probes with the same specification, the number of rows and columns which are correspondingly detected can be set for products with different models according to the size of the drawing view of the visual detection mechanism; the detection can be performed by loading different AI models 13 for probes of different specifications and products of different ground colors. The construction of the AI model 13 is prior art and will not be described here too much. The automatic detection device of the structure probe has the advantages of simple structure and high detection efficiency, and effectively reduces the missing detection risk and improves the detection accuracy.

In an example, as shown in fig. 1-3, the positioning mechanism 2 includes a placing carrier 21 and a position linear module 22, the placing carrier 21 includes a lower base 211, a hollow frame-shaped upper cover plate 212 and a second upper cover plate 213, both of which are detachably connected to the lower base 211 and cooperate with the lower base 211, the position linear module 22 is disposed along the width direction of the rack 1, the sliding table 12 of the position linear module 22 is connected to the lower base 211 and can drive the lower base 211 to slide, a protruding component is detachably disposed on the lower base 211 and is used for placing a product, and the hollow frame-shaped upper cover plate 212 can be locked on the lower base 211 and can press the product on the protruding component. The detection of various different models of products can be supported, and the shape and the size of the convex component and the hollow frame-shaped upper cover plate 212 can be adjusted according to actual requirements. For probes of the same or different specifications (probes of different specifications, and different AI models 13 need to be loaded at the same time), different types of products can select the appropriate hollow frame-shaped upper cover plate 212 according to the requirements.

When all products (regular products) needing pins are detected, the lower base 211, the convex components and the hollow frame-shaped upper cover plate 212 are used, the products loaded with thousands of probes are placed on the convex components, the hollow frame-shaped upper cover plate 212 is locked on the lower base 211, and the hollow frame-shaped upper cover plate 212 can just press the edge position of the products without affecting the detection probes; the hollow frame-shaped upper cover plate 212 serves for further positioning and also accelerates the product inspection speed. The position linear module 22 is activated to drive the product to move in the width direction, thereby further speeding up the photographing of each probe on the product by the visual inspection mechanism. The shape and structure of the hollow frame-shaped upper cover plate 212 are not limited to the specific shape and structure of this embodiment, as long as the product can be fixed on the protrusion assembly without affecting the detection of the product.

In an example, referring to fig. 3, the protrusion assembly includes a plurality of clip frames 6 with successively increasing diameters, and the clip frames 6 can be sequentially sleeved together, and each clip frame 6 can be detachably disposed on the lower base 211. The product detection of a plurality of different models can be supported. For probes of the same or different specifications (probes of different specifications, and different AI models 13 need to be loaded at the same time), products of different models can be sleeved by selecting a certain number of clip frames 6 according to requirements, and the certain number of clip frames 6 are locked on the lower base 211 to place the products.

In an example, referring to fig. 3, a plurality of layers of insertion holes 7 are uniformly formed in the lower base 211, and each insertion column 61 is arranged on each clip 6, and each insertion column 61 can be inserted into an insertion hole 7. The lower base 211 and the clip 6 are detachably connected through the insertion hole 7 and the insertion post 61.

In one example, referring to fig. 3, the lower base 211 is provided with a first screw hole 8, the hollow frame-shaped upper cover plate 212 is provided with a second screw hole 9, and the first screw hole 8 can be connected with the second screw hole 9 of the hollow frame-shaped upper cover plate 212 through a bolt. The lower base 211 and the hollow frame-shaped upper cover plate 212 are detachably connected through the first screw hole 8 and the second screw hole 9.

In one example, the loading mechanism 3 is a six-axis robot rotatably disposed outside the rack 1 for placing a product on the raised assembly of the positioning mechanism 2. The six-axis robot is activated to automatically clamp the product onto the raised assembly, and then the person locks the hollow frame-shaped upper cover 212 or the second upper cover 213 to the lower base 211. The six-axis manipulator replaces manual feeding, and the detection efficiency is further improved. Six-axis robots are prior art and will not be described in greater detail herein.

The outside of the frame 1 can also be rotatably provided with a conveyer belt and a driving motor for driving the conveyer belt to rotate. The driving motor is started to drive the conveying belt to rotate, so that the product is conveyed. Then six manipulators cooperation conveyer belt operations can press from both sides the product on the conveyer belt to protruding subassembly on, further improve detection efficiency.

In one example, referring to fig. 1-2, the vision inspection assembly 5 includes a main inspection camera 51, an inspection lens 52, and a camera controller, wherein the main inspection camera 51 is connected to the inspection lens 52, the inspection lens 52 is disposed on the Z-axis linear module 42 of the motion mechanism 4, the camera controller is electrically connected to both the main inspection camera 51 and the AI model 13, and the camera controller is configured to receive the image information transmitted by the main inspection camera 51 and transmit the processed and analyzed image information to the AI model 13. The comprehensive photographing of the products loaded with thousands of probes is realized through the main detection camera 51; and then carrying out AI detection algorithm through the AI model 13 of the classification model so as to obtain the data of each probe on the product, thereby completing the detection of the product.

In an example, as shown in fig. 2, the lighting device further includes a light source component, where the light source component includes a ring light source 10 and a light source controller, the ring light source 10 is disposed on a side of the detection lens 52 away from the main detection camera 51, and the light source controller is disposed on the frame 1 and is used for controlling the ring light source 10 to be turned on and off. The light source controller enables the control of the ring light source 10.

In one example, referring to fig. 1, an auxiliary inspection camera 11 is further included, which is disposed on one side of the housing 1 and electrically connected to the camera controller. The camera controller is configured to receive the image information transmitted by the auxiliary detection camera 11 and to transmit the processed and analyzed image information to the AI model 13. The auxiliary detection camera 11 is started and detects the heights of all the probes on the product, so that whether the probes are reversely mounted or not is further detected.

In an example, referring to fig. 1-2, the moving mechanism 4 includes an X-axis linear module 41 and a Z-axis linear module 42, the X-axis linear module 41 is disposed along the length direction of the rack 1, a slide block of the X-axis linear module 41 is connected to the Z-axis linear module 42 and drives the Z-axis linear module to slide, the Z-axis linear module 42 is disposed along the height direction of the rack 1, and a slide block of the Z-axis linear module 42 is connected to the detection lens 52 of the visual detection mechanism and drives the detection lens to slide. The X-axis linear module 41 and the Z-axis linear module 42 realize that the visual detection assembly 5 moves in the length direction and the height direction, so that the visual detection mechanism is convenient to align to a certain probe on a product, and the detection efficiency is further improved. The matching product can move in the width direction, so that the adjustment in the three axial directions is realized, and the detection efficiency is greatly improved.

In one example, the visual component and the man-machine interaction module are electrically connected, and the man-machine interaction module is further connected with the positioning mechanism 2, the movement mechanism 4, the visual detection mechanism and the AI model 13. The visualization component may be a display screen to display the current area (single probe) and the inspection result details of the entire product. Aiming at the detected unqualified probes, real-time manual correction can be performed through the man-machine cooperation module, and the visual component displays characters of 'no outflow and defective products'. The visualization component and the human-computer cooperation module are both in the prior art and are not explained in a too large way here.

The specific implementation steps of this embodiment are that the human-machine cooperation module is started, and a start button on the human-machine cooperation module is clicked. The following steps are performed, step one, six-axis robot start-up, and product loaded with thousands of probes is automatically placed on the plurality of frames 6. Step two, starting the X-axis linear module 41 and the Z-axis linear module 42 to drive the main detection camera 51 and the detection lens 52 to move to a first detection position (namely, to be aligned with a certain probe on a product), and sending a photographing signal of the first detection position to the AI model 13 after the main detection camera 51 and the detection lens 52 are stopped and stabilized; at the same time, the feedback photographing is completed, and the main detection camera 51 and the detection lens 52 move to the next detection position. Thirdly, the AI model 13 analyzes the photographing signal of the first detection position to realize image detection; after the detection is completed, the main detection camera 51 and the detection lens 52 send a photographing signal of the next detection position to the AI model 13 until all the positions are completely detected, and the automatic detection process is stopped. If the product is not qualified in all the probes, people click a retest button on the man-machine cooperation module to conduct retest. And if the detection of all the probes of the product is qualified, the detection of the next product can be carried out. And repeating the processes until all the products are detected.

Example two

Different from the first embodiment, referring to fig. 4, the positioning mechanism 2 of the present embodiment includes a placing carrier 21 and a position linear module 22, the placing carrier 21 includes a lower base 211, a hollow frame-shaped upper cover plate 212 and a second upper cover plate 213, both of which are detachably connected to the lower base 211 and cooperate to use, the position linear module 22 is disposed along the width direction of the rack 1, the sliding table 12 of the position linear module 22 is connected to the lower base 211 and can drive the lower base 211 to slide, a protruding component is disposed on the lower base 211 and is used for placing a product, and the second upper cover plate 213 can be locked on the lower base 211 and can press the product on the protruding component. The product detection of a plurality of different models can be supported, and the shape and the size of the convex component and the second upper cover plate 213 can be adjusted according to actual requirements. For probes of the same or different specifications (probes of different specifications, and different AI models 13 need to be loaded at the same time), the second cover plate 213 suitable for different models of products can be selected according to the requirements.

When detecting that a product (irregular product) without a pin insertion region exists, the lower base 211, the bump assembly and the second upper cover plate 213 are used, the product loaded with thousands of probes is placed on the bump assembly, the second upper cover plate 213 is locked on the lower base 211, the second upper cover plate 213 can just press the product and can cover the region of the product without the pin insertion, and only the pins in the product insertion region can be leaked, so that the detection probes are not influenced; the second upper cover plate 213 serves to further position and also to increase the product inspection speed. The position linear module 22 is activated to drive the product to move in the width direction, thereby further speeding up the photographing of each probe on the product by the visual inspection mechanism. The shape of the second upper cover plate 213 is not limited to the specific shape and structure of the present embodiment, as long as the product can be fixed on the protrusion assembly without affecting the components for product detection.

In an example, referring to fig. 4, a first screw hole 8 is formed on the lower base 211, and a second screw hole 9 is formed on each of the second upper cover plates 213, and the first screw hole 8 can be connected to the second screw hole 9 on the second upper cover plate 213 by a bolt. The lower base 211 and the second upper cover plate 213 are detachably coupled through the first screw hole 8 and the second screw hole 9.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. An automatic detection device of probe which characterized in that: including frame (1), positioning mechanism (2), feed mechanism (3), motion (4), visual detection mechanism and AI model (13), positioning mechanism (2) set up in frame (1), feed mechanism (3) set up outside frame (1) and feed mechanism (3) are used for placing the product on positioning mechanism (2), motion (4) set up in frame (1) and motion (4) are connected with visual detection mechanism and are used for driving its motion, visual detection mechanism is located the top of positioning mechanism (2) and visual detection mechanism still links with AI model (13) electricity.

2. The automatic detecting device of the probe according to claim 1, characterized in that: positioning mechanism (2)) including placing carrier (21) and position straight line module (22), place carrier (21) including lower base (211), all can dismantle cavity frame shape upper cover plate (212) and second upper cover plate (213) of being connected and the cooperation is used with lower base (211), position straight line module (22) are connected and can drive its slip with lower base (211) along frame (1) width direction setting and slip table (12) of position straight line module (22), can dismantle on lower base (211) and be provided with protruding subassembly and be used for placing the product, cavity frame shape upper cover plate (212) or second upper cover plate (213) can lock under on base (211) and can push down the product on the protruding subassembly.

3. The automatic detecting device of the probe according to claim 2, characterized in that: protruding subassembly includes that the diameter increases in proper order a plurality of shape frames (6) of returning and a plurality of shape frame (6) of returning can cup joint as an organic whole in proper order, every it all can dismantle the setting on base (211) down to return shape frame (6).

4. The automatic detection device of the probe according to claim 3, characterized in that: evenly be provided with multilayer jack (7), every on lower base (211) it inserts post (61) all to be provided with on time shape frame (6), every insert post (61) homoenergetic card and go into jack (7).

5. The automatic detection device of the probe according to claim 2, characterized in that: the lower base (211) is provided with a first screw hole (8), the hollow frame-shaped upper cover plate (212) and the second upper cover plate (213) are both provided with a second screw hole (9), and the first screw hole (8) can be connected with the second screw hole (9) in the hollow frame-shaped upper cover plate (212) or the second screw hole (9) in the second upper cover plate (213) through a bolt.

6. The automatic detecting device of the probe according to claim 1, characterized in that: the feeding mechanism (3) is a six-axis manipulator which is rotatably arranged outside the rack (1), and the six-axis manipulator is used for placing a product on a protruding component of the positioning mechanism (2).

7. The automatic detection device of a probe according to claim 1, characterized in that: visual detection subassembly (5) are including main detection camera (51), inspection lens (52) and camera controller, main detection camera (51) are connected with inspection lens (52) and inspection lens (52) set up on the straight module (42) of Z axle of motion (4), camera controller and main detection camera (51), AI model (13) equal electricity link and camera controller are used for receiving the image information of main detection camera (51) transmission, and can transmit the image information after the processing analysis to AI model (13).

8. The automatic detecting device of the probe according to claim 7, characterized in that: the light source device is characterized by further comprising a light source part, wherein the light source part comprises an annular light source (10) and a light source controller, the annular light source (10) is arranged on one side of a detection lens (52) far away from a main detection camera (51), and the light source controller is arranged on the rack (1) and used for controlling the annular light source (10) to be opened and closed.

9. The automatic detecting device of the probe according to claim 7, characterized in that: the device also comprises an auxiliary detection camera (11) which is arranged on one side of the machine frame (1) and is electrically connected with the camera controller.

10. The automatic detecting device of the probe according to claim 1, characterized in that: the movement mechanism (4) comprises an X-axis linear module (41) and a Z-axis linear module (42), the X-axis linear module (41) is arranged along the length direction of the rack (1), a sliding block of the X-axis linear module (41) is connected with the Z-axis linear module (42) and can drive the Z-axis linear module to slide, and the Z-axis linear module (42) is arranged along the height direction of the rack (1), is connected with a detection lens (52) on the visual detection mechanism and can drive the detection lens to slide.

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