Circuit board fixing tool and AOI detection equipment

Abstract

The utility model relates to the technical field of PCBA processing, and provides a circuit board fixing tool and AOI detection equipment. The circuit board fixing tool comprises a fixing seat, an adjusting seat, a first stop assembly and a second stop assembly. The fixed seat is provided with a positioning structure, and the positioning structure is matched with a track on the AOI detection equipment; the adjusting seat is adjustably arranged on the fixed seat along a first direction, the fixed seat is provided with a first bearing part, the adjusting seat is provided with a second bearing part, the first bearing part is supported at the lower end of a first side edge close to the circuit board, and the second bearing part is supported at the lower end of a second side edge close to the circuit board; the first stop assembly is arranged on the fixing seat and abuts against the first side edge of the circuit board. The second stop assembly is arranged on the adjusting seat and abuts against the second side edge of the circuit board. According to the utility model, circuit boards with different specifications can be conveniently installed on the track of the AOI detection equipment, the installation efficiency of the circuit boards is improved, and the position stability of the circuit boards in the detection process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCBA processing technical field especially relates to a circuit board fixed frock and AOI detection equipment. BACKGROUND

[0002] AOI (Automated Optical Inspection, automatic optical inspection) detection equipment is based on optical principle to detect the common defects encountered in the circuit board welding production process.

[0003] AOI detection equipment scans circuit board (PCBA product) through camera module automatically, gathers the image of circuit board, compares the parameter of detection point in image with the set parameter in database, checks out the defect on target product through image processing, and the defect is displayed or marked through display to supply maintenance personnel to modify and SMT engineering personnel to improve process.

[0004] In practical application, it is found that because the size of different circuit boards is different, the track of AOI detection equipment cannot be compatible with all sizes of circuit boards, and for different sizes of circuit boards, only the width of the track can be manually adjusted by the process personnel, which is time-consuming and laborious, and frequent adjustment operation is easy to cause the track components to wear, increase the maintenance time and cost, and the compatible size of the track has a certain size limit, when the size of the circuit board is less than the minimum width of the track, the circuit board cannot be placed on the track for inspection. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of circuit board fixed frock and AOI detection equipment to at least solve or improve the current problem that different specifications of circuit board are not installed on the track of AOI detection equipment.

[0006] In the first aspect, the utility model provides a kind of circuit board fixed frock, comprising: fixed seat, adjusting seat, first stop component and second stop component;

[0007] The fixed seat has positioning structure, and the positioning structure is configured to be adapted to the track on the AOI detection equipment to define the placement pose of the fixed seat on the track;

[0008] The adjusting seat is adjustably arranged on the fixed seat along the first direction, the fixed seat is provided with the first supporting part extending along the second direction, and the adjusting seat is provided with the second supporting part extending along the second direction, the first supporting part is used to support the lower end close to the first side edge of the circuit board, and the second supporting part is used to support the lower end close to the second side edge of the circuit board;

[0009] The first stop component is arranged on the fixing seat and is configured to abut against a first side edge of the circuit board; the second stop component is arranged on the adjusting seat and is configured to abut against a second side edge of the circuit board; and the first stop component and the second stop component cooperate to clamp the circuit board.

[0010] The first direction and the second direction are perpendicular.

[0011] According to the utility model provides a kind of circuit board fixing tool, the fixing seat includes rectangular frame body, the rectangular frame body has the first frame that extends along the first direction and the second frame that extends along the second direction, the first support part is arranged on the inner side of the second frame;The second support part is arranged on the side of the seat body towards the first support part.

[0012] The adjusting seat includes a seat body and a fixing lug connected thereto, the seat body is arranged within the area defined by the rectangular frame body, the second support part is arranged on the side of the seat body facing the first support part, and the fixing lug is adjustably arranged on the first frame along the first direction.

[0013] According to the utility model provides a kind of circuit board fixing tool, the fixing lug is provided with a fixing hole, the first frame of the rectangular frame body is provided with an adjusting hole, and the adjusting hole is arranged along the first direction;Wherein, the fixing lug is connected with the rectangular frame body by locking member arranged in the fixing hole and the adjusting hole.

[0014] According to the utility model provides a kind of circuit board fixing tool, the seat body is in strip shape, and the fixing lug is provided with two, and the two fixing lugs are correspondingly arranged at the two ends of the seat body.

[0015] Wherein, the two fixing lugs are one-to-one correspondingly arranged on the two first frames of the rectangular frame body oppositely arranged along the second direction.

[0016] According to the utility model provides a kind of circuit board fixing tool, the seat body and the fixing lug are detachably connected, or the seat body and the fixing lug are integrated structure.

[0017] According to the utility model provides a kind of circuit board fixing tool, the fixing seat further includes a stop edge, the stop edge is arranged on the outer side along the edge of the rectangular frame body and is arranged along the circumferential direction of the rectangular frame body, and the positioning structure in the form of step is formed between the rectangular frame body and the stop edge.

[0018] According to the utility model provides a kind of circuit board fixing tool, the first stop component is arranged on the side of the first support part away from the second support part, the first stop component includes a plurality of first elastic stop pieces, and the plurality of first elastic stop pieces are sequentially and spaced arranged along the extension direction of the first support part.

[0019] The second stop component is arranged on the side of the second supporting part away from the first supporting part, and the second stop component comprises a plurality of second elastic stop pieces arranged in sequence along the extension direction of the second supporting part.

[0020] According to the circuit board fixing tool, the first elastic stop piece and the second elastic stop piece are structurally identical, and each comprises a fixing member, an elastic member and a rotating member.

[0021] The fixing member is configured to be connected with the fixing seat or the adjusting seat, the elastic member is connected between the fixing member and the rotating member, the first end of the rotating member is rotatably arranged on the fixing member, and the second end of the rotating member is configured to abut against the side edge of the circuit board.

[0022] According to the circuit board fixing tool, the fixing seat is provided with a first positioning mark, and / or the adjusting seat is provided with a second positioning mark.

[0023] In a second aspect, the utility model also provides a kind of AOI detection equipment, comprising: equipment main body and the circuit board fixing tool as described above;

[0024] The equipment main body has a track, and is provided with a camera module and an image processor connected with the camera module, and the fixing seat is connected with the track by the positioning structure.

[0025] The camera module is used to collect image information of the circuit board clamped between the first stop component and the second stop component, and the image processor is used to identify welding defects on the circuit board according to the image information.

[0026] The circuit board fixing tool and the AOI detection equipment provided by the utility model are convenient for reliably installing the fixing seat on the track of the AOI detection equipment according to the positioning structure when installing the circuit board, and the position of the adjusting seat relative to the fixing seat can be adjusted along the first direction according to the size of the circuit board, so as to support the circuit board by the first supporting part and the second supporting part, and the circuit board is clamped by the cooperation of the first stop component and the second stop component, so as to realize the fixation of the circuit board. This design can conveniently install circuit boards of different specifications on the track of the AOI detection equipment without adjusting the track width of the AOI detection equipment by the staff, improves the installation efficiency of the circuit board, and ensures the stability of the position of the circuit board during detection. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0028] Figure 1 is a schematic diagram of the three-dimensional structure of the circuit board fixing tool provided by the present application.

[0029] Figure 2 is a schematic diagram of the bottom view structure of the circuit board fixing tool provided by the present application.

[0030] Figure 3 is a schematic diagram of the structure of the first elastic stop piece provided by the present application.

[0031] Figure 4 is one of the schematic diagrams of the top view structure of the circuit board fixing tool provided by the present application.

[0032] Figure 5 is the second schematic diagram of the top view structure of the circuit board fixing tool provided by the present application.

[0033] Reference signs:

[0034] 1, fixing seat; 100, first supporting part; 11, rectangular frame body; 111, first positioning mark; 12, stop edge; 101, positioning structure; 102, adjusting hole;

[0035] 2, adjusting seat; 200, second supporting part; 21, seat body; 211, second positioning mark; 22, fixing lug;

[0036] 3, first stop assembly; 31, first elastic stop piece; 311, fixing piece; 312, elastic piece; 313, rotating piece; 3130, abutting part;

[0037] 4, second stop assembly; 41, second elastic stop piece;

[0038] 5, locking piece; 6, fastener. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0040] The utility model embodiment provides a circuit board fixing tool and an AOI detection equipment through specific embodiments and application scenarios. Figures 1-5 , The utility model provides a circuit board fixing tool and an AOI detection equipment through specific embodiments and application scenarios.

[0041] In a first aspect, as shown in Figure 1 and Figure 2 , the utility model provides a circuit board fixing tool, which is applied to an AOI detection equipment, and includes a fixing seat 1, an adjusting seat 2, a first stop component 3 and a second stop component 4.

[0042] The fixing seat 1 has a positioning structure 101, which is configured to be adapted to a track on the AOI detection equipment to define a placement pose of the fixing seat 1 on the track.

[0043] The adjusting seat 2 is adjustably arranged on the fixing seat 1 along a first direction, the fixing seat 1 is provided with a first supporting part 100 extending along a second direction, and the adjusting seat 2 is provided with a second supporting part 200 extending along the second direction, the first supporting part 100 is used for supporting a lower end close to a first side edge of the circuit board, and the second supporting part 200 is used for supporting a lower end close to a second side edge of the circuit board.

[0044] The first stop component 3 is arranged on the fixing seat 1 and is configured to abut against the first side edge of the circuit board, and the second stop component 4 is arranged on the adjusting seat 2 and is configured to abut against the second side edge of the circuit board; the first stop component 3 and the second stop component 4 cooperate to clamp the circuit board; wherein the first direction and the second direction are perpendicular.

[0045] It can be understood that the circuit board is a finished circuit board formed by SMT or DIP components, and the circuit board is usually rectangular, and the periphery of some circuit boards is provided with a rectangular or arc-shaped notch.

[0046] The first direction can be along the width direction of the circuit board, and the second direction can be along the length direction of the circuit board.

[0047] By arranging the adjusting seat 2 to be adjustably arranged on the fixing seat 1 along the first direction, the first stop component 3 and the second stop component 4 can clamp circuit boards of different lengths or widths along the first direction, so as to adapt to the placement requirements of circuit boards of different specifications.

[0048] In actual application, the circuit board is placed horizontally, the first supporting part 100 and the second supporting part 200 are respectively supported on the lower surface of the circuit board, and the first stop component 3 and the second stop component 4 can clamp the opposite side edges of the circuit board along the length direction of the circuit board or along the width direction of the circuit board, and this is not specifically limited.

[0049] The first supporting part 100 and the second supporting part 200 can be horizontal supporting edges in contact with the lower surface of the circuit board, and the first stop component 3 and the second stop component 4 can be composed of one or more protrusions capable of playing a stop role.

[0050] The circuit board fixing tool can be reliably installed on the track of the AOI detection equipment according to the positioning structure 101 during installation of the circuit board, and the position of the adjusting seat 2 relative to the fixed seat 1 can be adjusted along the first direction according to the size of the circuit board, so that the first supporting part 100 and the second supporting part 200 support the circuit board, and the first stop component 3 and the second stop component 4 cooperate to clamp the circuit board, thereby realizing the fixation of the circuit board. This design does not require the staff to adjust the track width of the AOI detection equipment, and different specifications of circuit boards can be conveniently installed on the track of the AOI detection equipment, improving the installation efficiency of the circuit board and ensuring the stability of the position of the circuit board during detection.

[0051] In some embodiments, as shown in Figure 4 and Figure 5 The fixed seat 1 includes a rectangular frame body 11, the rectangular frame body 11 has a first frame extending along the first direction and a second frame extending along the second direction, and the first supporting part 100 is arranged on the inner side of the second frame.

[0052] The adjusting seat 2 includes a seat body 21 and a fixing lug 22 connected to each other, the seat body 21 is arranged in the area defined by the rectangular frame body 11, the second supporting part 200 is arranged on one side of the seat body 21 facing the first supporting part 100, and the fixing lug 22 is adjustably arranged on the first frame along the first direction.

[0053] Specifically, the rectangular frame body 11 can be an aluminum alloy frame or a stainless steel frame, which ensures that the rectangular frame body 11 has strong mechanical strength and can ensure the stability of the entire tool structure when carrying the circuit board and resisting various external forces in daily use, and is not prone to deformation and other damage. At the same time, the rectangular frame body 11 has good corrosion resistance and can adapt to various corrosion factors that may exist in the production environment, prolonging the service life of the entire tool.

[0054] The rectangular frame body 11 has two first frames and two second frames, the two first frames are parallel to each other and oppositely arranged along the second direction, and the two second frames are parallel to each other and oppositely arranged along the first direction.

[0055] A sliding guide structure can be arranged between the fixing lug 22 and the first frame, and the fixing lug 22 is movably arranged on the first frame in the first direction by the sliding guide structure to adjust the position of the adjusting seat 2 relative to the fixing seat 1 in the first direction, and ensure that the first stop component 3 and the second stop component 4 cooperate to clamp the circuit board.

[0056] The sliding guide structure can be composed of a protrusion and a sliding groove, and the protrusion is movably arranged in the sliding groove, or the sliding guide structure can be composed of a sliding rod and a sliding sleeve, and the sliding rod is inserted into the sliding sleeve.

[0057] The first supporting part 100 and the second supporting part 200 can be arranged to extend in the second direction and are oppositely arranged in the first direction; the height of the upper surface of the first supporting part 100 can be lower than the height of the upper surface of the second frame, and the height of the upper surface of the second supporting part 200 can be lower than the height of the upper surface of the seat body 21.

[0058] In some embodiments, as shown in Figure 4 and Figure 5 In order to facilitate the adjustment of the position of the fixing lug 22 on the first frame in the first direction, the fixing lug 22 is provided with a fixing hole, for example, the fixing hole is a circular hole, and the first frame of the rectangular frame body 11 is provided with an adjusting hole 102, which extends in the first direction, so that the adjusting hole 102 is a strip-shaped hole; wherein the fixing lug 22 can be connected with the rectangular frame body 11 by the locking piece 5 passing through the fixing hole and the adjusting hole 102.

[0059] In actual application, when the locking piece 5 is in the locked state, the position of the adjusting seat 2 relative to the fixing seat 1 is fixed, the whole tooling is in the use state, and the circuit board can be placed on the tooling; when the locking piece 5 is in the loosened state, the adjusting seat 2 can slide relative to the fixing seat 1 in the first direction, and the whole tooling is in the adjusting state, and by adjusting the distance between the first stop component 3 and the second stop component 4, the fixing of circuit boards of different specifications can be realized.

[0060] For the locking piece 5, the locking piece 5 can be composed of a J-bolt and a nut, and after the position of the fixing lug 22 relative to the first frame in the first direction is adjusted, the head of the J-bolt is sequentially passed through the fixing hole and the adjusting hole 102, and then the nut is threadedly connected with the head of the J-bolt to clamp the fixing lug 22 and the first frame between the end of the J-bolt and the nut, so that the adjusting seat 2 cannot move relative to the fixing seat 1 again.

[0061] In some embodiments, as shown in Figure 4 and Figure 5As shown, the seat body 21 is in a strip shape, and two fixing ears 22 are arranged at the two ends of the seat body 21 respectively; the two fixing ears 22 are arranged on the two first frames of the rectangular frame body 11 along the second direction respectively, and each fixing ear 22 is connected with the corresponding first frame through the locking piece 5. This design can ensure the stability of the arrangement position of the adjusting seat 2 relative to the fixing seat 1, and can reliably clamp the circuit board based on the cooperation of the first stop assembly 3 and the second stop assembly 4, thereby ensuring the stability of the position of the circuit board during detection.

[0062] In some embodiments, as shown in Figure 4 The seat body 21 and the fixing ear 22 are in an integrated structure, for example, the seat body 21 and the fixing ear 22 can be prepared by sheet metal process or casting process. This design can fix the adjusting seat 2 on the rectangular frame body 11, thereby improving the mounting efficiency of the circuit board.

[0063] The seat body 21 and the fixing ear 22 can be arranged in a staggered manner along the thickness direction of the rectangular frame body 11, so that there is a height difference between the upper surface of the fixing ear 22 and the upper surface of the seat body 21.

[0064] In some embodiments, as shown in Figure 5 The seat body 21 and the fixing ear 22 are detachably connected, for example, the end of the seat body 21 is detachably connected with one end of the fixing ear 22 through the fastener 6, and the other end of the fixing ear 22 is provided with a fixing hole, so that the fixing ear 22 can be connected with the rectangular frame body 11 through the locking piece 5 penetrating the fixing hole and the adjusting hole 102. This design can effectively reduce the processing precision requirement of the adjusting seat 2.

[0065] In some embodiments, as shown in Figure 2 The fixing seat 1 further comprises a stop edge 12, which is arranged along the outer side of the rectangular frame body 11 and extends along the circumference of the rectangular frame body 11, and a stepped positioning structure 101 is formed between the rectangular frame body 11 and the stop edge 12.

[0066] It can be understood that the thickness of the rectangular frame body 11 is greater than the thickness of the stop edge 12, the upper surface of the rectangular frame body 11 is flush with the upper surface of the stop edge 12, and there is a height difference between the lower surface of the rectangular frame body 11 and the lower surface of the stop edge 12, so as to form the stepped positioning structure 101 between the rectangular frame body 11 and the stop edge 12.

[0067] In actual application, the AOI detection equipment has two tracks which are spaced apart from each other and arranged side by side; the outer side surface of the rectangular frame body 11 is attached to the inner side surface of the track, and the lower surface of the stop edge 12 is attached to the top surface of the track, so as to ensure that the fixing seat 1 is reliably placed between the two tracks.

[0068] For the rectangular frame 11, the thickness of the rectangular frame 11 can be 4mm-6mm, for example, the thickness of the rectangular frame 11 is 4mm, 5mm, 6mm and other suitable thicknesses, which ensures that the rectangular frame 11 has sufficient strength and is not easy to deform, and the weight of the rectangular frame 11 is moderate, which is convenient for the operator to take, install and adjust, and further improves the convenience and service life of use.

[0069] In some embodiments, as shown in Figure 1 and Figure 2 The first stop component 3 is arranged on the side of the first supporting part 100 away from the second supporting part 200, and the first stop component 3 includes a plurality of first elastic stop pieces 31, which are arranged in sequence and spaced along the extension direction of the first supporting part 100.

[0070] The second stop component 4 is arranged on the side of the second supporting part 200 away from the first supporting part 100, and the second stop component 4 includes a plurality of second elastic stop pieces 41, which are arranged in sequence and spaced along the extension direction of the second supporting part 200.

[0071] It can be understood that considering that most circuit boards are rectangular, and a part of the periphery of the rectangular circuit board is provided with various forms of notches, the conventional clamping structure cannot reliably clamp such circuit boards.

[0072] For the scheme shown in the present embodiment, the plurality of first elastic stop pieces 31 can reliably abut against the first side edge of the circuit board, and the plurality of second elastic stop pieces 41 can reliably abut against the second side edge of the circuit board, that is, the plurality of first elastic stop pieces 31 and the plurality of second elastic stop pieces 41 can better adapt to the shape change of the circuit board, ensuring the reliability of clamping the circuit board.

[0073] Among them, the first elastic stop piece 31 and the second elastic stop piece 41 can adopt elastic sheets, elastic rods and the like, which are not specifically limited.

[0074] In some embodiments, as shown in Figure 3 The first elastic stop piece 31 and the second elastic stop piece 41 are the same in structure and each include a fixing piece 311, an elastic piece 312 and a rotating piece 313; the fixing piece 311 is configured to be connected with the fixing seat 1 or the adjusting seat 2, the elastic piece 312 is connected between the fixing piece 311 and the rotating piece 313, the first end of the rotating piece 313 is rotatably arranged on the fixing piece 311, and the second end of the rotating piece 313 is configured to abut against the side edge of the circuit board.

[0075] It can be understood that, since the first end of the rotating member 313 is rotatably arranged on the fixed member 311, by controlling the rotation of the rotating member 313 relative to the fixed member 311, the distance between the second end of the rotating member 313 and the side edge of the circuit board can be adjusted. Since the elastic member 312 is connected between the fixed member 311 and the rotating member 313, the rotating member 313 can reliably abut against the side edge of the circuit board under the elastic force of the elastic member 312, and maintain the abutting force between the rotating member 313 and the side edge of the circuit board.

[0076] Exemplarily, the fixed member 311 can be a screw, and the elastic member 312 can be a spring. The screw is arranged on the fixed seat 1 or the adjusting seat 2, the first end of the rotating member 313 is rotatably sleeved on the screw rod of the screw, and the spring is sleeved on the screw rod of the screw. One end of the spring abuts against the first end of the rotating member 313, and the other end of the spring abuts against the screw nut. Obviously, under the elastic force of the spring, the first end of the rotating member 313 abuts against the fixed seat 1 or the adjusting seat 2, which can make the rotating member 313 maintain a larger contact friction force with the opposite wall surface of the fixed seat 1 or the adjusting seat 2, thereby ensuring the abutting force between the rotating member 313 and the side edge of the circuit board.

[0077] In some embodiments, as shown in Figure 3 , the second end of the rotating member 313 is provided with an abutting portion 3130 configured to abut against the side edge of the circuit board.

[0078] Further, as shown in Figure 1 and Figure 2 , the bottom surface of the rectangular frame body 11 is flush with the bottom surface of the first supporting portion 100, and the height of the upper surface of the rectangular frame body 11 is greater than the height of the upper surface of the first supporting portion 100, so that a height difference is formed between the upper surface of the rectangular frame body 11 and the upper surface of the first supporting portion 100.

[0079] Correspondingly, the bottom surface of the seat body 21 is flush with the bottom surface of the second supporting portion 200, and the height of the upper surface of the seat body 21 is greater than the height of the upper surface of the second supporting portion 200, so that a height difference is formed between the upper surface of the seat body 21 and the upper surface of the second supporting portion 200.

[0080] In actual application, if the thickness of the circuit board is less than the above-mentioned height difference, in order to reliably clamp the circuit board, the abutting portion 3130 is formed with a protrusion extending towards one side of the fixed seat 1 or the adjusting seat 2. When the thickness of the circuit board is small (for example, the thickness of the circuit board is less than the height difference), the protrusion can be used to abut against the side edge of the circuit board. Of course, when the thickness of the circuit board is greater than the height difference, the abutting portion 3130 of the rotating member 313 can be directly used to abut against the side edge of the circuit board.

[0081] In some embodiments, as shown in Figure 1 and Figure 2As shown, the fixing seat 1 is provided with a first positioning mark 111; and / or, the adjusting seat 2 is provided with a second positioning mark 211.

[0082] It can be understood that the first positioning mark 111 and the second positioning mark 211 are used to assist the optical system of the AOI detection equipment to position the position of the circuit board, and the circuit board is usually provided with a positioning mark such as a through hole, but the size and shape of the positioning mark on different circuit boards are different, which may not be recognized by the optical system of the AOI detection equipment, and through the first positioning mark 111 provided on the fixing seat 1 and the second positioning mark 211 provided on the adjusting seat 2, the optical system of the AOI detection equipment can accurately position and recognize the circuit board based on the first positioning mark 111 and / or the second positioning mark 211, and avoid positioning failure or mispositioning due to inconsistent positioning marks.

[0083] Exemplarily, as shown in the drawings, Figure 1 The first positioning mark 111 and the second positioning mark 211 can be positioning holes or positioning protrusions.

[0084] Exemplarily, as shown in the drawings, Figure 1 The fixing seat 1 is provided with one positioning hole at each corner of the rectangular frame body 11, and the adjusting seat 2 is provided with a plurality of positioning holes on the seat body 21, and the plurality of positioning holes are arranged in sequence along the second direction.

[0085] In a second aspect, the utility model further provides an AOI detection equipment, which comprises: an equipment main body and the circuit board fixing tool as described above;

[0086] The equipment main body has a track, and is provided with a camera module and an image processor connected with the camera module, and the fixing seat 1 is connected with the track through the positioning structure 101;

[0087] The camera module is used for collecting image information of the circuit board clamped between the first stop component 3 and the second stop component 4, and the image processor is used for identifying the welding defects on the circuit board according to the image information.

[0088] It can be understood that the image processor can adopt an image recognition algorithm known in the art to process the image information collected by the camera module, so as to identify the welding defects on the circuit board according to the image information, wherein the processing and identification of the image information collected by the camera module adopt a known technology and do not belong to the points to be protected by the utility model patent.

[0089] Since the AOI detection device comprises the circuit board fixing tool, the specific structure of the circuit board fixing tool refers to the above-mentioned embodiments, the AOI detection device shown in the embodiment comprises all the technical solutions of the above-mentioned embodiments, and therefore at least has all the beneficial effects obtained by all the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0090] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit board fixing tool characterized by comprising: The utility model relates to a circuit board AOI detection device fixing and adjusting device, including: Fixed seat, adjusting seat, first stop component and second stop component; The fixed seat has a positioning structure configured to fit with a track on an AOI detection device to define a placement pose of the fixed seat on the track; The adjusting seat is adjustably arranged on the fixed seat along a first direction, the fixed seat is provided with a first supporting part extending along a second direction, the adjusting seat is provided with a second supporting part extending along the second direction, the first supporting part is used for supporting the lower end of the first side edge of the circuit board, and the second supporting part is used for supporting the lower end of the second side edge of the circuit board; The first stop component is arranged on the fixed seat and is configured to abut against the first side edge of the circuit board, the second stop component is arranged on the adjusting seat and is configured to abut against the second side edge of the circuit board, and the first stop component and the second stop component cooperate to clamp the circuit board; Wherein, the first direction and the second direction are perpendicular.

2. The circuit board fixing tool according to claim 1, wherein The fixed seat includes a rectangular frame body having a first frame extending along the first direction and a second frame extending along the second direction, and the first supporting part is arranged on the inner side of the second frame; The adjusting seat includes a seat body and a fixing lug connected to each other, the seat body is arranged in the area defined by the rectangular frame body, the second supporting part is arranged on the side of the seat body facing the first supporting part, and the fixing lug is adjustably arranged on the first frame along the first direction.

3. The circuit board fixing tool according to claim 2, wherein The fixing lug is provided with a fixing hole, the first frame of the rectangular frame body is provided with an adjusting hole extending along the first direction; Wherein, the fixing lug is connected to the rectangular frame body by a locking member passing through the fixing hole and the adjusting hole.

4. The circuit board fixing tool according to claim 2, wherein The seat body is in a strip shape, and the fixing lug is provided with two fixing lugs corresponding to the two ends of the seat body; Wherein, the two fixing lugs are arranged on the two first frames of the rectangular frame body arranged opposite to each other along the second direction.

5. The circuit board fixing tool according to claim 2, wherein The seat body and the fixing lug are detachably connected, or the seat body and the fixing lug are in an integral structure.

6. The circuit board fixing tool according to claim 2, wherein The fixed seat further includes a stop edge arranged on the outer side of the rectangular frame body along the edge and extending along the circumference of the rectangular frame body, and the rectangular frame body and the stop edge form a stepped positioning structure.

7. The circuit board fixing tool according to any one of claims 1 to 6, characterized by The first stop component is arranged on the side of the first supporting part away from the second supporting part, the first stop component includes a plurality of first elastic stop pieces arranged in sequence and spaced apart along the extension direction of the first supporting part; The second stop component is arranged on the side of the second supporting part away from the first supporting part, and the second stop component includes a plurality of second elastic stop pieces arranged in sequence and spaced apart along the extension direction of the second supporting part.

8. The circuit board fixing tool according to claim 7, wherein The first elastic stop piece and the second elastic stop piece are the same in structure and each include a fixing member, an elastic member and a rotating member. The fixing member is configured to be connected with the fixing base or the adjusting base, the elastic member is connected between the fixing member and the rotating member, a first end of the rotating member is rotatably arranged on the fixing member, and a second end of the rotating member is configured to abut against a side edge of the circuit board.

9. The circuit board fixing tool according to any one of claims 1 to 6, characterized by The fixing base is provided with a first positioning mark, and / or the adjusting base is provided with a second positioning mark.

10. An AOI inspection apparatus, characterized by, The device body and the circuit board fixing tool according to any one of claims 1 to 9 are included. The device body has a track, is configured with a camera module and an image processor connected with the camera module, and the fixing base is connected with the track through the positioning structure. The camera module is used to collect image information of the circuit board clamped between the first stop component and the second stop component, and the image processor is used to identify welding defects on the circuit board according to the image information. ​

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