CN212458287U

CN212458287U - High-density blind hole detection equipment for printed circuit board

Info

Publication number: CN212458287U
Application number: CN202021159713.XU
Authority: CN
Inventors: 苏文泉
Original assignee: Shenzhen Huafengze Electronic Co ltd
Current assignee: Shenzhen Huafengze Electronic Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-02-02
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a system printed circuit board high density blind hole check out test set, including the work cabinet, the top fixedly connected with work support of work cabinet, the middle-end fixedly connected with electric telescopic handle of work support, electric telescopic handle's bottom fixedly connected with fixed plate, the equal fixedly connected with movable telescopic link in both ends of fixed plate bottom. The utility model discloses a PLC controller control electric telescopic handle moves downwards, electric telescopic handle drives the fixed plate in the time of the downward movement, a spring, the activity telescopic link, arc rubber pressing plate moves downwards with the protecting crust, make arc rubber pressing plate and be contacted by the detection circuit board, under electric telescopic handle's continuous movement, make the fixed plate extrude the spring, when the spring is extruded and is produced elastic deformation, exert a reaction force to arc rubber pressing plate, make arc rubber pressing plate reach and carry out the effect of fixing to the detection circuit board under this effort.

Description

High-density blind hole detection equipment for printed circuit board

Technical Field

The utility model relates to a check out test set technical field specifically is a system printed circuit board high density blind hole check out test set.

Background

In the electroplating process of the printed circuit board to be detected, the copper plating layer is mainly divided into two types, one is full-board copper plating, namely, the chemical copper plating layer is prevented from being corroded by acid after being oxidized by electroplating thickening, the other is pattern electroplating, namely, the copper layer in a hole and the copper layer of a circuit are thickened or are used as a substrate of a nickel plating layer, along with the large-scale development of portable electronic products, high densification becomes one of important development trends of the PCB, and the development of micro-via hole technology closely related to the industry is directly promoted, in the laser processing processes of HDI, BGA, FPC, chip through holes and the like of the circuit board, as the laser energy burns holes, more residues can be remained in the blind holes of the circuit board to be detected, and when a later monitoring instrument detects the depth of the blind holes, as the detecting instrument does not have the function of cleaning dust on the circuit board to be detected, the detection data obtained by the detecting instrument can be greatly influenced, the accuracy of the detection data is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a system printed circuit board high density blind hole check out test set possesses the good advantage of dust removal effect, has solved the detector and has not possessed the function of going on the dust to being cleared up on the detected circuit board, can produce very big influence to the detected data that the detector obtained, has reduced the problem of detection data accuracy.

In order to achieve the above object, the utility model provides a following technical scheme: a high-density blind hole detection device for a printed circuit board comprises a working cabinet, wherein a working support is fixedly connected to the top of the working cabinet, an electric telescopic rod is fixedly connected to the middle end of the working support, a fixed plate is fixedly connected to the bottom of the electric telescopic rod, movable telescopic rods are fixedly connected to both ends of the bottom of the fixed plate, an arc-shaped rubber pressing plate is fixedly connected to the bottom of each movable telescopic rod, a spring is fixedly connected to the top of each arc-shaped rubber pressing plate, the other side of each spring is fixedly connected to the bottom of the fixed plate, a protective shell is fixedly connected to the middle end of the bottom of the fixed plate, an infrared distance sensor is fixedly mounted at the middle end of the top of an inner cavity of the protective shell, an air pump is fixedly mounted at the right end of the top of the fixed plate through a support, an air guide, the left end fixedly connected with air gun head of air duct bottom, the left end fixedly mounted on work support surface has the rose box, fixedly connected with second grade filter screen, one-level filter screen and baffle are in proper order from a left side to the right side in the surface of rose box inner chamber, the bottom fixedly connected with air-blower of rose box, and the output of air-blower passes through pipeline fixed connection in the left upper end of protecting crust, the right-hand member fixed mounting on work support surface has central processing unit, central processing unit's positive surface is provided with the display screen, the spacing pedestal of middle-end fixedly connected with at work cabinet top, the top fixedly connected with pressure sensor of spacing pedestal, pressure sensor's bottom is provided with the detection circuit board.

Preferably, the input fixedly connected with dust filter screen of air pump, the material of dust filter screen includes active carbon.

Preferably, the periphery of the bottom of the work cabinet is fixedly connected with supporting blocks, and the distance between every two adjacent supporting blocks is equal.

Preferably, one side of the front surface of the working cabinet is movably connected with a cabinet door through a hinge, and the left end of the surface of the cabinet door is fixedly connected with a handle.

Preferably, the right end of the top of the work cabinet is fixedly provided with a PLC controller, and the top of the PLC controller is provided with a control key.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a PLC controller control electric telescopic handle moves downwards, electric telescopic handle drives the fixed plate, the spring, the movable telescopic link, arc rubber clamp plate and protective shell move downwards when moving downwards, make arc rubber clamp plate contact with the circuit board to be detected, under the continuous movement of electric telescopic handle, make the fixed plate extrude the spring, when the spring is extruded and produces elastic deformation, exert a reaction force to arc rubber clamp plate, under this action force make arc rubber clamp plate reach the effect of fixing the circuit board to be detected, through the setting of pressure sensor, can detect the pressure value that the circuit board to be detected bears, when protective shell contacts with the circuit board to be detected, when the produced downforce reaches the range value that pressure sensor predetermines, pressure sensor can transmit information to central processing unit, after receiving the information, the central processing unit transmits a signal to the PLC, the PLC controls the air pump, the air blower and the infrared distance sensor to work when controlling the electric telescopic rod to stop working after receiving the signal, the air pump works to drive external air flow to the air gun head through a pipeline, and blows the position of the blind hole on the detected circuit board, under the blowing of the wind, residues on the surface of the blind hole are lifted, the air carrying the residues in the protective shell is driven to flow to the filter box through the pipeline by the work of the air blower, the air flow conveyed by the air blower can be filtered through the arrangement of the primary filter screen and the secondary filter screen in the filter box, secondary pollution caused by the outward diffusion of dust and the residues is prevented, and the distance between the infrared distance sensor and the bottom of the blind hole can be measured by the work of the infrared distance sensor, then infrared distance sensor uploads central processing unit with data, central processing unit carries out the data analysis back, upload information to the display screen and show, under holistic cooperation, the effect of detecting and removing dust to the degree of depth of blind hole on being detected the circuit board has been realized, very big improvement the accuracy of data, it does not possess the function of clearing up the dust on being detected the circuit board to have solved the detector, can produce very big influence to the detection data that the detector obtained, the problem of detection data accuracy has been reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the protective shell of the present invention;

FIG. 3 is a schematic view of the structure of the filtering box of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a display screen; 2. a central processing unit; 3. a dust filter screen; 4. an air pump; 5. an electric telescopic rod; 6. a protective shell; 7. a filter box; 8. a blower; 9. a working support; 10. a support block; 11. a detected circuit board; 12. a pressure sensor; 13. a limiting pedestal; 14. a work cabinet; 15. a cabinet door; 16. a PLC controller; 17. an arc-shaped rubber pressing plate; 18. a gas gun head; 19. an air duct; 20. an infrared distance sensor; 21. a secondary filter screen; 22. a first-stage filter screen; 23. a partition plate; 24. a spring; 25. a movable telescopic rod; 26. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-4, a printed circuit board high-density blind hole detection device comprises a work cabinet 14, wherein support blocks 10 are fixedly connected to the periphery of the bottom of the work cabinet 14, the distance between every two adjacent support blocks 10 is equal, one side of the front surface of the work cabinet 14 is movably connected with a cabinet door 15 through a hinge, a handle is fixedly connected to the left end of the surface of the cabinet door 15, a PLC controller 16 is fixedly installed at the right end of the top of the work cabinet 14, a control button is arranged at the top of the PLC controller 16, a work support 9 is fixedly connected to the top of the work cabinet 14, an electric telescopic rod 5 is fixedly connected to the middle end of the work support 9, a fixed plate 26 is fixedly connected to the bottom of the electric telescopic rod 5, movable telescopic rods 25 are fixedly connected to both ends of the bottom of the fixed plate 26, an arc-shaped rubber pressing plate 17 is fixedly connected to the, the other side of the spring 24 is fixedly connected to the bottom of the fixing plate 26, the middle end of the bottom of the fixing plate 26 is fixedly connected with the protective shell 6, the middle end of the top of the inner cavity of the protective shell 6 is fixedly provided with the infrared distance sensor 20, the right end of the top of the fixing plate 26 is fixedly provided with the air pump 4 through a bracket, the input end of the air pump 4 is fixedly connected with the dust filter screen 3, the material of the dust filter screen 3 comprises activated carbon, the output end of the air pump 4 is fixedly connected with the air duct 19 through a pipeline, the surface of the air duct 19 is fixedly connected to the lower end of the surface of the infrared distance sensor 20, the left end of the bottom of the air duct 19 is fixedly connected with the air gun head 18, the left end of the surface of the working bracket 9 is fixedly provided with the filter box 7, the, the output end of the blower 8 is fixedly connected to the left upper end of the protective shell 6 through a pipeline, the right end of the surface of the working support 9 is fixedly provided with a central processing unit 2, the front surface of the central processing unit 2 is provided with a display screen 1, the middle end of the top of the working cabinet 14 is fixedly connected with a limiting pedestal 13, the top of the limiting pedestal 13 is fixedly connected with a pressure sensor 12, the bottom of the pressure sensor 12 is provided with a detected circuit board 11, the PLC controller 16 controls the electric telescopic rod 5 to move downwards, the electric telescopic rod 5 moves downwards and simultaneously drives the fixed plate 26, the spring 24, the movable telescopic rod 25, the arc-shaped rubber pressing plate 17 and the protective shell 6 to move downwards, so that the arc-shaped rubber pressing plate 17 is contacted with the detected circuit board 11, under the continuous movement of the electric telescopic rod 5, the fixed plate 26 extrudes the spring, applying a reaction force to the arc-shaped rubber pressing plate 17, enabling the arc-shaped rubber pressing plate 17 to achieve the effect of fixing the detected circuit board 11 under the action force, detecting the pressure value born by the detected circuit board 11 through the setting of the pressure sensor 12, when the protective shell 6 is contacted with the detected circuit board 11 and the generated downward pressure reaches the range value preset by the pressure sensor 12, the pressure sensor 12 transmits information to the central processing unit 2, the central processing unit 2 transmits a signal to the PLC controller 16 after receiving the information, the PLC controller 16 controls the electric telescopic rod 5 to stop working after receiving the signal, and simultaneously controls the air pump 4, the air blower 8 and the infrared distance sensor 20 to work, the air pump 4 drives the external air flow to the air gun head 18 through the pipeline, and blows air to the position of the blind hole on the detected circuit board 11, under the blowing of wind, the residues on the surface of the blind hole are lifted, the air carrying the residues in the protective shell 6 is driven by the work of the air blower 8 to flow to the filter box 7 through the pipeline, the air flow conveyed by the air blower 8 can be filtered by the arrangement of the first-stage filter screen 22 and the second-stage filter screen 21 in the filter box 7, the secondary pollution caused by the external diffusion of dust and the residues is prevented, the distance between the infrared distance sensor 20 and the bottom of the blind hole can be measured by the work of the infrared distance sensor 20, then the data is uploaded to the central processing unit 2 by the infrared distance sensor 20, the information is uploaded to the display screen 1 for displaying after the data is analyzed by the central processing unit 2, under the integral matching action, the effects of detecting and dedusting the depth of the blind hole on the detected circuit board 11 are realized, and the accuracy of the data is greatly improved, the problem of the detector ware do not possess the function of clearing up the dust on being detected the circuit board, can produce very big influence to the detected data that the detector ware obtained, reduced the detected data accuracy is solved.

All the components in the utility model are universal standard components or components known by technicians in the field, the structure and principle of the components are known by technicians in the technical manual or known by conventional experimental methods, standard parts used in the application document can be purchased from the market, the components in the application document can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each component adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, machines, parts and equipment adopt conventional models in the prior art, the control mode is automatically controlled by a controller, a control circuit of the controller can be realized by simple programming of technicians in the field, the components belong to the common knowledge in the field, and the application document is mainly used for protecting mechanical devices, so the control mode and circuit connection are not explained in detail in the application document, no specific description will be made herein.

When the device is used, the PLC 16 controls the electric telescopic rod 5 to move downwards, the electric telescopic rod 5 moves downwards and simultaneously drives the fixed plate 26, the spring 24, the movable telescopic rod 25, the arc-shaped rubber pressing plate 17 and the protective shell 6 to move downwards, so that the arc-shaped rubber pressing plate 17 is contacted with the detected circuit board 11, the fixed plate 26 extrudes the spring 24 under the continuous movement of the electric telescopic rod 5, the spring 24 is extruded to generate elastic deformation and simultaneously exert a reaction force on the arc-shaped rubber pressing plate 17, the arc-shaped rubber pressing plate 17 achieves the effect of fixing the detected circuit board 11 under the action force, the pressure value born by the detected circuit board 11 can be detected through the arrangement of the pressure sensor 12, when the protective shell 6 is contacted with the detected circuit board 11 and the generated downward pressure reaches the range value preset by the pressure sensor 12, the pressure sensor 12 can transmit information to the central processing unit 2, the central processing unit 2 can transmit signals to the PLC controller 16 after receiving the information, the PLC controller 16 can control the electric telescopic rod 5 to stop working after receiving the signals, and at the same time, the air pump 4, the blower 8 and the infrared distance sensor 20 are controlled to work, the air pump 4 works to drive external air flow to the air gun head 18 through a pipeline, and then blows the position of the blind hole on the detected circuit board 11, under the blowing of the wind, the residue on the surface of the blind hole is lifted, the air carrying the residue in the protective shell 6 is driven by the work of the blower 8 to flow to the filter box 7 through the pipeline, through the arrangement of the primary filter screen 22 and the secondary filter screen 21 in the filter box 7, the air flow transmitted by the blower 8 can be filtered, and secondary pollution caused by the diffusion of dust and the residue to the outside can be, can measure infrared distance sensor 20 distance to between the blind hole bottom through infrared distance sensor 20 work, then infrared distance sensor 20 uploads central processing unit 2 with data, and central processing unit 2 carries out the analysis back with data, uploads information to and shows for display screen 1, under holistic cooperation, has realized detecting the effect with the dust removal to the degree of depth of blind hole on being detected circuit board 11, very big improvement the accuracy of data.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a system printed circuit board high density blind hole check out test set, includes work cabinet (14), its characterized in that: the infrared distance sensor is characterized in that a working support (9) is fixedly connected to the top of the working cabinet (14), an electric telescopic rod (5) is fixedly connected to the middle end of the working support (9), a fixed plate (26) is fixedly connected to the bottom of the electric telescopic rod (5), movable telescopic rods (25) are fixedly connected to both ends of the bottom of the fixed plate (26), an arc-shaped rubber pressing plate (17) is fixedly connected to the bottom of each movable telescopic rod (25), a spring (24) is fixedly connected to the top of each arc-shaped rubber pressing plate (17), the other side of each spring (24) is fixedly connected to the bottom of the corresponding fixed plate (26), a protective shell (6) is fixedly connected to the middle end of the bottom of each fixed plate (26), an infrared distance sensor (20) is fixedly installed at the middle end of the top of an inner cavity of the protective shell (6), and, the output end of the air pump (4) is fixedly connected with an air guide tube (19) through a pipeline, the surface of the air guide tube (19) is fixedly connected with the lower end of the surface of an infrared distance sensor (20), the left end of the bottom of the air guide tube (19) is fixedly connected with an air gun head (18), the left end of the surface of the working support (9) is fixedly provided with a filter box (7), the surface of the inner cavity of the filter box (7) is sequentially and fixedly connected with a secondary filter screen (21), a primary filter screen (22) and a partition plate (23) from left to right, the bottom of the filter box (7) is fixedly connected with an air blower (8), the output end of the air blower (8) is fixedly connected with the upper end of the left side of the shell (6) through a pipeline, the right end of the surface of the working support (9) is, the middle end fixedly connected with of workstation (14) top is spacing pedestal (13), the top fixedly connected with pressure sensor (12) of spacing pedestal (13), the bottom of pressure sensor (12) is provided with and is detected circuit board (11).

2. The printed circuit board high-density blind hole detection device according to claim 1, wherein: the air pump is characterized in that the input end of the air pump (4) is fixedly connected with a dust filter screen (3), and the dust filter screen (3) is made of activated carbon.

3. The printed circuit board high-density blind hole detection device according to claim 1, wherein: all around of work cabinet (14) bottom all fixedly connected with supporting shoe (10), and the distance between two adjacent supporting shoe (10) is equal.

4. The printed circuit board high-density blind hole detection device according to claim 1, wherein: one side of the front surface of the working cabinet (14) is movably connected with a cabinet door (15) through a hinge, and the left end of the surface of the cabinet door (15) is fixedly connected with a handle.

5. The printed circuit board high-density blind hole detection device according to claim 1, wherein: the right-hand member fixed mounting at work cabinet (14) top has PLC controller (16), and the top of PLC controller (16) is provided with the control button.