CN117347388B - Hole inspection machine and hole inspection method for circuit board - Google Patents

Hole inspection machine and hole inspection method for circuit board Download PDF

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Publication number
CN117347388B
CN117347388B CN202311662430.5A CN202311662430A CN117347388B CN 117347388 B CN117347388 B CN 117347388B CN 202311662430 A CN202311662430 A CN 202311662430A CN 117347388 B CN117347388 B CN 117347388B
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CN
China
Prior art keywords
positioning frame
circuit board
machine
feeding
station
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Active
Application number
CN202311662430.5A
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Chinese (zh)
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CN117347388A (en
Inventor
梁家彬
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Suining Xinfeng Technology Co ltd
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Suining Xinfeng Technology Co ltd
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Priority to CN202311662430.5A priority Critical patent/CN117347388B/en
Publication of CN117347388A publication Critical patent/CN117347388A/en
Application granted granted Critical
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/956Inspecting patterns on the surface of objects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G37/00Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/24Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90Devices for picking-up and depositing articles or materials
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106General arrangement of respective parts
    • G01N2021/0112Apparatus in one mechanical, optical or electronic block
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/956Inspecting patterns on the surface of objects
    • G01N2021/95638Inspecting patterns on the surface of objects for PCB's
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/956Inspecting patterns on the surface of objects
    • G01N2021/95638Inspecting patterns on the surface of objects for PCB's
    • G01N2021/95653Through-holes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/82Recycling of waste of electrical or electronic equipment [WEEE]

Abstract

The invention discloses a hole inspection machine and a hole inspection method for a circuit board, comprising the following steps: the machine shell is provided with a feeding station and a detection station at one side; the positioning frames are stacked and arranged in the feeding station; the feeding mechanism comprises a first driving part, a clamp and four guide rails; the blanking mechanism comprises a first telescopic rod, four connecting blocks, four connecting rods and four stop blocks; the optical inspection module is arranged in the detection station in a sliding manner, and is positioned above the blanking mechanism when the optical inspection module is in a working state; the moving mechanism is used for moving the positioning frame on the feeding mechanism into the discharging mechanism; the method is a checking step of the hole checking machine for the circuit board. According to the technical scheme, intelligent feeding and discharging can be completed, the feeding and discharging speed is increased, manual operation is reduced, and meanwhile, no technical requirement is imposed on operators.

Description

Hole inspection machine and hole inspection method for circuit board
Technical Field
The invention relates to the technical field of hole inspection machines, in particular to a hole inspection machine and a hole inspection method for a circuit board.
Background
The primary purpose of the circuit board inspection is to ensure the accuracy of the location and size of the holes on the Printed Circuit Board (PCB). Inspection of the holes is an important step in the manufacture of PCBs and is used to verify that the holes meet design requirements to ensure that the electronic components are properly inserted and connected.
The prior circuit board hole inspection equipment may have the following defects during loading and unloading:
1. and (3) manual operation: most PCB hole inspection equipment needs manual operation for loading and unloading, which may increase labor cost and operation time and is easily affected by human factors;
2. the feeding and discharging speed is low: because of the need of accurately positioning and placing the PCB, the feeding and discharging speed may be slow, thereby affecting the overall production efficiency;
3. the technical requirements for operators are high: the loading and unloading process requires a certain skill and experience of operators to ensure correct positioning and placement, otherwise, hole inspection failure or damage to the PCB may be caused.
Disclosure of Invention
The invention aims to provide a hole inspection machine and a hole inspection method for a circuit board, which aim to finish intelligent feeding and discharging, accelerate feeding and discharging speed, reduce manual operation and have no requirement on the technology of operators.
The embodiment of the invention is realized by the following technical scheme:
in one aspect, the invention discloses a hole inspection machine for a circuit board, comprising:
the machine comprises a machine shell, wherein one side of the machine shell is provided with a feeding station and a detection station;
the positioning frames are stacked in the feeding station; the positioning frame is used for placing a circuit board;
the feeding mechanism comprises a first driving part, a clamp and four guide rails; the four guide rails form a limiting space, are arranged on the shell and are positioned right above the feeding station for the positioning frame to pass through; the clamp is arranged on the shell in a sliding manner along the height direction, and the first driving part is used for driving the clamp to move along the height direction;
the blanking mechanism comprises a first telescopic rod, four connecting blocks, four connecting rods and four stop blocks; the connecting blocks are provided with a supporting point and two connecting points, the four connecting blocks are respectively and rotatably arranged in the detection station, two ends of the four connecting rods are respectively connected with the connecting points of the two adjacent connecting blocks, and the four stop blocks are respectively arranged at the tops of the connecting blocks; one end of the first telescopic rod is connected with the detection station, and the other end of the first telescopic rod is connected with one of the connecting rods;
the optical inspection module is arranged in the detection station in a sliding manner, and is positioned above the blanking mechanism when the optical inspection module is in a working state;
and the moving mechanism is used for moving the positioning frame on the feeding mechanism into the discharging mechanism.
In one embodiment of the present invention, the jig includes:
the mounting plate is arranged on the shell in a sliding manner;
the two clamping jaws are hinged at two ends of the mounting plate in opposite directions respectively;
the two second telescopic rods are hinged to the mounting plate at one end, and the clamping jaw at the other end.
In an embodiment of the present invention, the first driving part includes:
one end of the third telescopic rod is connected with the shell, and the other end of the third telescopic rod is connected with the mounting plate;
the guide rods are arranged on the shell;
one side of the mounting plate is provided with a plurality of guide holes for the guide rods to pass through.
In an embodiment of the present invention, the positioning frame includes:
the circuit board comprises a board body, wherein the top of the board body is provided with a positioning groove, and the shape of the positioning groove is matched with that of the circuit board;
the support rods are four and are respectively arranged at the four corners of the plate body.
In an embodiment of the invention, the positioning frame further comprises a first conveyor belt, wherein the first conveyor belt is arranged in the feeding station and is used for conveying the positioning frame.
In an embodiment of the present invention, a guide plate is disposed in the feeding station, and when the first conveyor belt transports the positioning frame, two ends of the positioning frame are abutted against the guide plate;
and a limiting plate is arranged between the tail ends of the two guide plates, and when the positioning frame is transmitted to the tail end of the first conveyor belt, the limiting plate props against the positioning frame.
In an embodiment of the invention, the device further comprises a second conveyor belt, wherein the second conveyor belt is arranged in the detection station and is positioned below the blanking mechanism.
In one embodiment of the present invention, the moving mechanism includes:
the sliding plate is arranged in the shell in a sliding way;
the adsorption disc is positioned below the sliding plate;
the two ends of the fourth telescopic rod are respectively connected with the sliding plate and the adsorption disc;
and the second driving part is used for driving the sliding plate to slide.
In an embodiment of the present invention, the second driving part includes:
the screw rod is rotatably arranged in the shell, and one end of the screw rod penetrates through the sliding plate;
and the motor is used for driving the screw rod to rotate.
On the other hand, the invention also discloses a hole inspection method of the hole inspection machine for the circuit board, which comprises the following steps:
s1, respectively placing a plurality of circuit boards on the tops of a plurality of positioning frames;
s2, the first driving part drives the clamp to grasp the positioning frame to move in a limit space formed by the four guide rails;
s3, the moving mechanism moves the positioning frame to the blanking mechanism; the optical inspection module slides outwards to detect a circuit board placed on the positioning frame on the blanking mechanism;
s4, intermittently discharging by the discharging mechanism to finish discharging.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
according to the hole inspection machine for the circuit board, when the circuit board is fed, an operator places the circuit board at the top of the positioning frame in advance, the clamp grabs the positioning frame, the first driving part drives the clamp to drive the positioning frame to move along the limiting space formed by the four guide rails, the moving mechanism moves the positioning frame to the blanking mechanism, the optical inspection module slides outwards to detect the circuit board placed on the positioning frame on the blanking mechanism, after detection is finished, the optical inspection module is retracted, and the moving mechanism continues to move the next positioning frame to the blanking mechanism; the optical inspection module stretches out again for inspection; at the moment, a plurality of positioning frames are stacked on a blanking mechanism, and during blanking, the first telescopic rod drives the connecting rods to move so as to drive the four connecting blocks to rotate, so that the supporting points of the four connecting blocks and the four connecting blocks intermittently abut against the bottoms of the positioning frames, and intermittent discharging is completed; according to the technical scheme, intelligent feeding and discharging can be completed, the feeding and discharging speed is increased, manual operation is reduced, and meanwhile, no technical requirement is imposed on operators.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural diagram of a feeding mechanism;
fig. 3 is a schematic structural diagram of a feeding mechanism;
fig. 4 is a schematic structural view of the blanking mechanism;
FIG. 5 is a schematic diagram of the connection relationship between the connection block and the stopper;
FIG. 6 is a schematic view of a positioning frame;
fig. 7 is a schematic structural diagram of a loading station.
Icon: the device comprises a 1-shell, a 1 a-feeding station, a 1 b-detecting station, a 11-guide plate, a 12-limiting plate, a 2-feeding mechanism, a 21-first driving part, a 211-third telescopic rod, a 212-guide rod, a 22-clamp, a 221-mounting plate, a 222-clamping jaw, a 223-second telescopic rod, a 23-guide rail, a 3-blanking mechanism, a 31-connecting block, a 32-connecting rod, a 33-first telescopic rod, a 34-stop block, a 4-optical inspection module, a 5-moving mechanism, a 51-sliding plate, a 52-adsorbing disc, a 53-fourth telescopic rod, a 54-screw rod, a 6-positioning frame, a 61-plate body, a 61 a-positioning groove, a 62-supporting rod, a 7-first conveyor belt and an 8-second conveyor belt.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific 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 positive importance. Merely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-7, a hole inspection machine for a circuit board includes a casing 1, a positioning frame 6, a feeding mechanism 2, a discharging mechanism 3, an optical inspection module 4, a moving mechanism 5, a first conveyor belt 7 and a second conveyor belt 8.
As shown in fig. 6, the positioning frame 6 includes a board body 61 and four support rods 62, and a positioning groove 61a is formed at the top of the board body 61, so as to facilitate placement of a circuit board and limit the circuit board; four bracing pieces 62 set up respectively in the four corners of plate body 61 bottom to when a plurality of locating frames 6 pile up, increase the interval between the plate body 61 of two adjacent locating frames 6, thereby in order that feed mechanism 2 snatchs locating frame 6 and unloading locating frame 6 of unloading mechanism 3 intermittent type nature.
As shown in fig. 1, a feeding station 1a is arranged at the top of the machine shell 1, and one side of the feeding station 1a penetrates through the machine shell 1; one end of the first conveyor belt 7 extends to the end of the feeding station 1a, and the other end extends outside the casing 1 so as to convey the positioning frame 6 to the end of the feeding station 1 a; the top of the feeding station 1a is provided with an opening so that the feeding mechanism 2 can grasp the positioning frame 6 from the feeding station 1 a.
In this embodiment, as shown in fig. 7, two opposite side walls of the feeding station 1a are respectively provided with a guide plate 11, the distance between the two guide plates 11 is slightly greater than or equal to the width of the plate body 61 of the positioning frame 6, and when the positioning frame 6 moves in the feeding station 1a, two ends of the plate body 61 just abut against the two guide plates 11, so that the positioning plates are limited in the horizontal direction; a limiting plate 12 is arranged between the tail ends of the two guide plates 11, and when the positioning frame 6 is transported to the tail end of the feeding station 1a, the limiting plate 12 butts against the positioning frame 6, and at the moment, the positioning frame 6 is just positioned under the top opening of the feeding station 1 a.
As shown in fig. 1 to 3, the feeding mechanism 2 includes a first driving part 21, a jig 22, and four guide rails 23; wherein the first driving part 21 comprises a third telescopic rod 211 and a plurality of guide rods 212, in the embodiment, the number of the guide rods 212 is preferably two; the clamp 22 comprises a mounting plate 221, two clamping jaws 222 and two second telescopic rods 223;
the four guide rails 23 are installed at four corners of the top opening of the loading station 1a, and form a limit space, the projected area and shape of which on the horizontal plane are the same as the projected area and shape of the plate body 61 of the positioning frame 6 on the horizontal plane, so that the positioning frame 6 can slide upward along the guide rails 23.
The mounting plate 221 is slidably arranged on the casing 1 along the height direction, and two ends of the mounting plate 221 are provided with extensions which are positioned outside the guide rail 23, so that the guide rail 23 and the mounting plate 221 cannot form limit when the mounting plate 221 slides up and down, and the clamping jaw 222 is convenient to install; the two clamping jaws 222 are respectively connected to the extensions on two sides of the mounting plate 221 in a rotating manner, one end of the second telescopic rod 223 is hinged with the clamping jaws 222, the other end of the second telescopic rod 223 is connected with the extension of the mounting plate 221, and the two clamping jaws 222 are folded inwards or unfolded outwards due to the extension and shortening of the second telescopic rod 223.
One end of the third telescopic rod 211 is connected with the casing 1, and the other end is connected with the mounting plate 221, so that the clamp 22 is driven to slide along the height direction; in order to make sliding stable, the mounting plate 221 is provided with two through holes, and the two guide rods 212 are respectively arranged on the casing 1 and positioned at two sides of the third telescopic rod 211 and respectively pass through the two through holes, so that guiding effect is achieved, and the mounting plate 221 is made to slide stable.
When the first conveyor belt 7 conveys the positioning frame 6 to be positioned at the tail end of the feeding station 1a, the third telescopic rod 211 drives the mounting plate 221 to move downwards, at the moment, the two second telescopic rods 223 are shortened, so that the two clamping jaws 222 are folded inwards to prop against the bottom of the plate body 61 of the positioning frame 6, and the third telescopic rod 211 is shortened again to drive the mounting plate 221 to move upwards, so that the positioning frame 6 is driven to move upwards; after the grabbing of one positioning frame 6 is finished, the first conveyor belt 7 enables the lower positioning frame 6 to be conveyed to the tail end of the upper feeding station 1a, at the moment, the third telescopic rod 211 drives the mounting plate 221 to move downwards again, when the supporting rod 62 of the upper positioning frame 6 is abutted against the plate body 61 of the lower positioning frame 6, the two second telescopic rods 223 are extended, the two clamping jaws 222 are released to the outer side, the third telescopic rod 211 continues to extend, and when the two clamping jaws 222 are positioned on the positioning frame 6 at the lowest position, the two second telescopic rods 223 are shortened again and abut against the positioning frame 6 at the lowest position; the above steps are repeated, so that the positioning frames 6 are sequentially piled up in the limit space formed by the four guide rails 23. The support rods 62 of the positioning frames 6 serve to increase the distance between the plate bodies 61 of two adjacent positioning frames 6, so that the clamping jaws 222 can conveniently grip the plates.
As shown in fig. 1, the casing 1 further comprises a detection station 1b, and the detection station 1b is communicated with the feeding station 1 a; the moving mechanism 5 is used for transferring the positioning frame 6 in the guide rail 23 into the detection station 1 b; specifically, the moving mechanism 5 includes a second driving part, a sliding plate 51, an adsorption disc 52, and a plurality of fourth telescopic rods 53; in the present embodiment, the number of the fourth telescopic links 53 is preferably four; wherein the second driving part comprises a motor and a screw rod 54; the motor is arranged in the shell 1, the screw rod 54 is rotatably arranged above the detection station 1b and the feeding mechanism 2, one end of the screw rod is connected with an output shaft of the motor, the sliding plate 51 is provided with a threaded hole, and one end of the screw rod 54 also penetrates through the threaded hole; the adsorption disc 52 is positioned below the sliding plate 51, and two ends of the four fourth telescopic rods 53 are respectively connected with the sliding plate 51 and the adsorption disc 52; the motor drives the screw rod 54 to rotate, when the sliding plate 51 is located right above the limit space formed by the four guide rails 23, the fourth telescopic rod 53 stretches to enable the adsorption disc 52 to move downwards, so that the plate body 61 of the positioning frame 6 is adsorbed, the fourth telescopic rod 53 shortens, meanwhile, the motor continues to drive the screw rod 54 to rotate, so that the sliding plate 51 drives the adsorption disc 52 to move to the position above the detection station 1b, the fourth telescopic rod 53 stretches, and the adsorption disc 52 only needs to place the positioning frame 6 in the blanking mechanism 3.
It should be noted that, the adsorption principle of the adsorption disc 52 is that a vacuum generator is used to generate negative pressure, so as to achieve the purpose of adsorption, and since the principle and structure thereof are the prior art, they are not improvements of the present embodiment, and the present embodiment will not be described in detail.
As shown in fig. 1, when the optical inspection module 4 is slidably disposed on the inspection station 1b and the moving mechanism 5 transfers the positioning frame 6 in the feeding mechanism 2 to the inspection station 1b, at this time, the optical inspection module 4 is hidden in the inspection station 1b, so that the moving mechanism 5 is not affected to transfer the positioning frame 6; when the optical inspection module 4 works, the optical inspection module slides outwards and is positioned right above the blanking mechanism 3.
The detection principle of the optical inspection module 4 is as follows: and a high-definition camera is adopted to photograph the circuit board, and a template matching-linear fitting-connected domain analysis mode is adopted to rapidly judge whether the hole of the circuit board meets the standard.
It should be noted that, the power source for driving the optical inspection module 4 to slide may be a rodless cylinder or other power source, which is not limited in this embodiment.
As shown in fig. 1, 4 and 5, the discharging mechanism 3 includes a first telescopic rod 33, four connecting blocks 31, four connecting rods 32 and four stoppers 34; the bottom of the detection station 1b is provided with an opening, and four connecting blocks 31 are rotatably arranged at four corners of the opening; the connecting block 31 is T-shaped and has a supporting point and two connecting points, two ends of four connecting rods 32 are respectively connected with the connecting points of two adjacent connecting blocks 31, four stop blocks 34 are respectively arranged at the top of the connecting block 31, one end of a first telescopic rod 33 is connected with the detecting station 1b, and the other end of the first telescopic rod is connected with one connecting rod 32.
The four connecting blocks 31 form a first layer space, and the four stop blocks 34 form a second layer space; when the four connecting rods 32 are in the initial position, the supporting points of the four connecting blocks 31 are positioned at the outer side, the four stop blocks 34 are positioned at the inner side and abut against the bottom of the plate body 61 of the positioning frame 6 at the lowest position, when the four connecting blocks 32 are required to be discharged, the first telescopic rods 33 drive the connecting rods 32 to rotate, the four connecting rods 32 form a parallelogram structure, at the moment, the four stop blocks 34 of the second layer of space are positioned at the outer side, the supporting points of the four connecting blocks 31 in the first layer of space are positioned at the inner side, the positioning frame 6 positioned on the second layer of space drops downwards, the supporting points of the four connecting blocks 31 abut against the plate body 61 of the positioning frame 6 at the lowest position, then the first telescopic rods 33 drive the connecting rods 32 to move, so that the connecting lines of the four connecting rods 32 are restored to be rectangular, and at the moment, the supporting points of the four connecting blocks 31 are positioned at the outer side, and the four stop blocks 34 are positioned at the inner side, so that the positioning frame 6 at the lowest position drops from an opening; repeating the steps to finish intermittent discharging.
The second conveyer belt 8 is arranged below the opening of the detection station 1b, one end of the second conveyer belt extends out of the machine shell 1, and the blanking positioning frame 6 falls on the second conveyer belt 8 and is transported out of the machine shell 1 by the second conveyer belt 8.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A hole inspection machine for a circuit board, comprising:
the machine comprises a machine shell, wherein one side of the machine shell is provided with a feeding station and a detection station, and the bottom of the detection station is provided with an opening;
the positioning frames are stacked in the feeding station; the positioning frame is used for placing a circuit board;
the feeding mechanism comprises a first driving part, a clamp and four guide rails; the four guide rails form a limiting space, are arranged on the shell and are positioned right above the feeding station for the positioning frame to pass through; the clamp is arranged on the shell in a sliding manner along the height direction, and the first driving part is used for driving the clamp to move along the height direction;
the blanking mechanism comprises a first telescopic rod, four connecting blocks, four connecting rods and four stop blocks; the connecting blocks are in a T shape and are provided with a supporting point and two connecting points, four connecting blocks are respectively arranged at four corners of the opening in a rotating mode, two ends of each connecting rod are respectively connected with connecting points of two adjacent connecting blocks, four stop blocks are respectively arranged at the tops of the connecting blocks, the four connecting blocks form a first layer of space, and the four stop blocks form a second layer of space; when the connecting rod is in the initial position, the four connecting rods form a rectangular structure, the supporting points of the four connecting blocks are positioned at the outer side, and the four stop blocks are positioned at the inner side; one end of the first telescopic rod is connected with the detection station, and the other end of the first telescopic rod is connected with one of the connecting rods;
the optical inspection module is arranged in the detection station in a sliding manner, and is positioned above the blanking mechanism when the optical inspection module is in a working state;
and the moving mechanism is used for moving the positioning frame on the feeding mechanism into the discharging mechanism.
2. The hole inspection machine for a circuit board according to claim 1, wherein the jig comprises:
the mounting plate is arranged on the shell in a sliding manner;
the two clamping jaws are hinged at two ends of the mounting plate in opposite directions respectively;
the two second telescopic rods are hinged to the mounting plate at one end, and the clamping jaw at the other end.
3. The hole inspection machine for a circuit board according to claim 2, wherein the first driving part comprises:
one end of the third telescopic rod is connected with the shell, and the other end of the third telescopic rod is connected with the mounting plate;
the guide rods are arranged on the shell;
one side of the mounting plate is provided with a plurality of guide holes for the guide rods to pass through.
4. The machine of claim 1, wherein the positioning frame comprises:
the circuit board comprises a board body, wherein the top of the board body is provided with a positioning groove, and the shape of the positioning groove is matched with that of the circuit board;
the support rods are four and are respectively arranged at the four corners of the plate body.
5. The machine of claim 1, further comprising a first conveyor belt disposed in the loading station for transporting the positioning frame.
6. The hole inspection machine for the circuit board according to claim 5, wherein a guide plate is arranged in the feeding station, and when the first conveyor belt transports the positioning frame, two ends of the positioning frame are abutted against the guide plate;
and a limiting plate is arranged between the tail ends of the two guide plates, and when the positioning frame is transmitted to the tail end of the first conveyor belt, the limiting plate props against the positioning frame.
7. The machine of claim 1, further comprising a second conveyor belt disposed in the inspection station and below the blanking mechanism.
8. The machine of claim 1, wherein the moving mechanism comprises:
the sliding plate is arranged in the shell in a sliding way;
the adsorption disc is positioned below the sliding plate;
the two ends of the fourth telescopic rod are respectively connected with the sliding plate and the adsorption disc;
and the second driving part is used for driving the sliding plate to slide.
9. The hole inspection machine for a circuit board according to claim 8, wherein the second driving part comprises:
the screw rod is rotatably arranged in the shell, and one end of the screw rod penetrates through the sliding plate;
and the motor is used for driving the screw rod to rotate.
10. The hole inspection method of the hole inspection machine for circuit boards according to any one of claims 1 to 9, comprising the steps of:
s1, respectively placing a plurality of circuit boards on the tops of a plurality of positioning frames;
s2, the first driving part drives the clamp to grasp the positioning frame to move in a limit space formed by the four guide rails;
s3, the moving mechanism moves the positioning frame to the blanking mechanism; the optical inspection module slides outwards to detect a circuit board placed on the positioning frame on the blanking mechanism;
s4, intermittently discharging by the discharging mechanism to finish discharging.
CN202311662430.5A 2023-12-06 2023-12-06 Hole inspection machine and hole inspection method for circuit board Active CN117347388B (en)

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Publication number Priority date Publication date Assignee Title
CN117387989B (en) * 2023-12-06 2024-03-08 遂宁鑫峰科技有限公司 Automatic slicing sampler and sampling method for PCB (printed circuit board)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07108366A (en) * 1993-10-13 1995-04-25 Hanshin Koki Kk Automatic trimming method with material supplying device and apparatus thereof
JP2002104658A (en) * 2000-09-28 2002-04-10 Shikoku Kakoki Co Ltd Container feeding device
CN110586516A (en) * 2019-08-14 2019-12-20 孙广静 Optical fiber wiring terminal and production method thereof
CN113770040A (en) * 2021-08-12 2021-12-10 昆山宣实精密机械有限公司 Data line connects integration on-line measuring system
CN215235999U (en) * 2021-07-22 2021-12-21 昆山万源通电子科技股份有限公司 Hole inspection machine for circuit board
CN116359455A (en) * 2023-05-31 2023-06-30 深圳市华晨阳科技有限公司 Drug detection and identification system and identification method
CN219499648U (en) * 2023-03-15 2023-08-08 遂宁鑫峰科技有限公司 High-precision positioning device for drilling holes on circuit board

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07108366A (en) * 1993-10-13 1995-04-25 Hanshin Koki Kk Automatic trimming method with material supplying device and apparatus thereof
JP2002104658A (en) * 2000-09-28 2002-04-10 Shikoku Kakoki Co Ltd Container feeding device
CN110586516A (en) * 2019-08-14 2019-12-20 孙广静 Optical fiber wiring terminal and production method thereof
CN215235999U (en) * 2021-07-22 2021-12-21 昆山万源通电子科技股份有限公司 Hole inspection machine for circuit board
CN113770040A (en) * 2021-08-12 2021-12-10 昆山宣实精密机械有限公司 Data line connects integration on-line measuring system
CN219499648U (en) * 2023-03-15 2023-08-08 遂宁鑫峰科技有限公司 High-precision positioning device for drilling holes on circuit board
CN116359455A (en) * 2023-05-31 2023-06-30 深圳市华晨阳科技有限公司 Drug detection and identification system and identification method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Rechargeable redox flow batteries: flow fields, stacks and design considerations;Ke X等;Chemical Society Reviews;第 47 卷(第 23 期);第8721-8743页 *
步进料仓式输送设备的研究及应用;常燕青等;起重运输机械(第 9 期);第80-83页 *

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