CN110843023A - PCB back drill cleaning system - Google Patents

PCB back drill cleaning system Download PDF

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Publication number
CN110843023A
CN110843023A CN201911068007.6A CN201911068007A CN110843023A CN 110843023 A CN110843023 A CN 110843023A CN 201911068007 A CN201911068007 A CN 201911068007A CN 110843023 A CN110843023 A CN 110843023A
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CN
China
Prior art keywords
conveyor belt
pcb
cleaning system
screw rod
cleaning
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911068007.6A
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Chinese (zh)
Other versions
CN110843023B (en
Inventor
史国平
吴建明
杨志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aoshikang Technology Co Ltd
Original Assignee
Aoshikang Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aoshikang Technology Co Ltd filed Critical Aoshikang Technology Co Ltd
Priority to CN201911068007.6A priority Critical patent/CN110843023B/en
Publication of CN110843023A publication Critical patent/CN110843023A/en
Application granted granted Critical
Publication of CN110843023B publication Critical patent/CN110843023B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/16—Perforating by tool or tools of the drill type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/022—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/42—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between work feed and clamp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
    • B26F2210/08—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products of ceramic green sheets, printed circuit boards and the like

Abstract

The invention discloses a PCB (printed circuit board) back drill cleaning system which comprises a first conveyor belt, wherein fixed clamping plates are arranged on two sides of the first conveyor belt and connected with a push-pull device; a back drilling mechanism and an installation frame are installed above the first conveyor belt, a first lifting device is installed on the installation frame, the first lifting device is connected with a baffle, and a first proximity switch is installed on the baffle; the tail end of the first conveyor belt is provided with a plate turning mechanism, a second conveyor belt is arranged in cooperation with the plate turning mechanism, and a cleaning and drying mechanism is arranged in cooperation with the second conveyor belt; the cleaning and drying mechanism comprises a rack which is oppositely arranged, a plurality of pulleys are coupled on the rack through a rotating shaft, and grooves are formed in the circumferential direction of the pulleys in an inwards concave manner; the rotating shaft is formed with outer ring teeth and connected through a toothed belt. The PCB board positioning device is simple in structure and convenient to use, can be used for quickly positioning the PCB board, does not need to preset positioning holes on the PCB board, and realizes automatic cleaning and drying of the PCB board.

Description

PCB back drill cleaning system
Technical Field
The invention belongs to the field of machinery, and particularly relates to a PCB (printed circuit board) back drill cleaning system.
Background
PCB boards typically have a multi-layer board structure, and in the fabrication of multi-layer boards, such as 12-layer boards, we need to connect layer 1 to layer 9, and typically we drill through holes (one drill) and then age the copper. Thus, layer 1 is connected directly to layer 12, and in practice we only need layer 1 to be connected to layer 9, and layers 10 to 12 are connected by no wires, like a pillar. This post affects the routing of signals, which can cause signal integrity problems in the communication signal. So the extra post (known in the industry as STUB) is drilled out of the reverse side (secondary drilling), known as backdrilling. However, after back drilling, dust in the hole needs to be cleaned, and at present, the hole is cleaned manually, which wastes manpower.
Disclosure of Invention
The invention aims to design a novel PCB back drill cleaning system which is simple in structure and convenient to use, can be used for quickly positioning a PCB, does not need to preset positioning holes in the PCB, and realizes automatic cleaning and drying of the PCB.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a PCB back drill cleaning system comprises a first conveyor belt, wherein fixed clamping plates are arranged on two sides of the first conveyor belt and connected with a push-pull device; a back drilling mechanism and an installation frame are installed above the first conveyor belt, a first lifting device is installed on the installation frame, the first lifting device is connected with a baffle, and a first proximity switch is installed on the baffle; the tail end of the first conveyor belt is provided with a plate turning mechanism, a second conveyor belt is arranged in cooperation with the plate turning mechanism, and a cleaning and drying mechanism is arranged in cooperation with the second conveyor belt; the cleaning and drying mechanism comprises a rack which is oppositely arranged, a plurality of pulleys are coupled on the rack through a rotating shaft, and grooves are formed in the circumferential direction of the pulleys in an inwards concave manner; the rotating shaft is provided with outer ring teeth which are connected through a toothed belt; one of the rotating shafts is connected with a rotating device; a water spray head and a drying spray head are arranged along the conveying direction of the pulley; the upper part and the lower part of the frame are both provided with a water spray head and a drying spray head.
Further improvement, back drilling mechanism includes the drill bit, and the drill bit is connected with the rectangular block, and rectangular block slidable mounting is in the guide block, take shape in the guide block have with rectangular block complex mounting groove, the forced induction piece is installed to the mounting groove bottom, the guide block is connected with rotary device, rotary device is connected with horizontal screw rod mechanism, horizontal screw rod mechanism is connected with vertical screw rod mechanism, vertical screw rod mechanism is connected with vertical screw rod mechanism.
The improved structure of the horizontal screw rod mechanism, the longitudinal screw rod mechanism and the vertical screw rod mechanism is the same, and the horizontal screw rod mechanism, the longitudinal screw rod mechanism and the vertical screw rod mechanism all comprise a rotating motor and a sliding rod, and the rotating motor is connected with a screw rod.
In a further improvement, the rotating device is a drilling motor.
The plate turnover mechanism comprises an inclined plate, the inclined plate is connected with a transverse plate, and a pressure sensor is arranged on the transverse plate; the bottom of the inclined plate is connected with a connecting shaft, and the connecting shaft is connected with a turnover motor.
In a further improvement, a machine identification system is further mounted above the first conveyor belt.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a side structure schematic diagram of the plate turnover mechanism.
Detailed Description
Example 1
As shown in fig. 1-3, the PCB back drill cleaning system comprises a first conveyor belt 1, wherein fixed clamping plates 2 are mounted on two sides of the first conveyor belt 1, and the fixed clamping plates 2 are connected with a push-pull device 3; a back drilling mechanism 5 and an installation frame 4 are installed above the first conveyor belt 1, a first lifting device 41 is installed on the installation frame 4, the first lifting device 41 is connected with a baffle 42, and a first proximity switch 43 is installed on the baffle 42; the tail end of the first conveyor belt 1 is provided with a plate turning mechanism 6, a second conveyor belt 7 is arranged in cooperation with the plate turning mechanism 6, and a cleaning and drying mechanism 8 is arranged in cooperation with the second conveyor belt 7; the cleaning and drying mechanism 8 comprises a frame 81 which is oppositely arranged, a plurality of pulleys 83 are coupled on the frame 81 through a rotating shaft 82, and the pulleys 83 are inwards recessed in the circumferential direction to form grooves; the rotating shaft 82 is formed with outer ring teeth and is connected through a toothed belt 84; one of the shafts 82 is connected with a rotating device 85; a water spray 86 and a drying spray 87 are installed along the conveying direction of the pulley 83; a water shower 86 and a drying shower 87 are installed above and below the frame 81.
The back drilling mechanism 5 comprises a drill bit 51, the drill bit 51 is connected with a rectangular block 52, the rectangular block 52 is slidably mounted in a guide block 53, a mounting groove 54 matched with the rectangular block 52 is formed in the guide block 53, a pressure sensing piece 55 is mounted at the bottom of the mounting groove 54, the guide block 53 is connected with a rotating device 56, the rotating device 56 is connected with a transverse screw rod mechanism 57, the transverse screw rod mechanism 57 is connected with a longitudinal screw rod mechanism 58, and the longitudinal screw rod mechanism 58 is connected with a vertical screw rod mechanism 59.
The transverse screw rod mechanism 57, the longitudinal screw rod mechanism 58 and the vertical screw rod mechanism 59 are identical in structure and respectively comprise a rotating motor 510 and a sliding rod 511, and the rotating motor 510 is connected with a screw rod 512.
The rotation device 56 is a drilling motor.
The plate turnover mechanism 6 comprises an inclined plate 61, the inclined plate 61 is connected with a transverse plate 62, and a pressure sensor 63 is arranged on the transverse plate 62; the bottom of the inclined plate 61 is connected with a connecting shaft 64, and the connecting shaft 64 is connected with a turnover motor 65.
A machine identification system 9 is also mounted above the first conveyor belt 1.
The using method of the invention is as follows: the PCB is placed on the first conveyor belt, then is blocked by the baffle 42 and is sensed by the first proximity switch 43, the fixed clamping plate 2 is pushed by the push-pull device 3 to descend and clamp the PCB, the positioning of the PCB is realized, and the positioning accuracy is ensured through the machine recognition system 9; then the back drilling mechanism 5 descends to enable the drill bit 51 to press the PCB, after the pressure sensing piece 55 senses the pressure to reach the threshold value, the drill bit 51 rotates to start back drilling, after the back drilling is finished, the baffle 42 raises the PCB and is transported to the board turning mechanism, the pressure sensor 63 senses the PCB and then the turning motor 65 rotates to enable the PCB to be turned over to the second conveyor belt 7, then the PCB is conveyed between the pulleys 83 which are oppositely arranged, and the water spray head 86 is dried by the drying spray head 87 after being washed.
The above-mentioned embodiment is only one specific embodiment of the present invention, and is not intended to limit the present invention.

Claims (6)

1. A PCB (printed circuit board) back drill cleaning system comprises a first conveyor belt (1), and is characterized in that two sides of the first conveyor belt (1) are provided with fixed clamping plates (2), and the fixed clamping plates (2) are connected with a push-pull device (3); a back drilling mechanism (5) and an installation frame (4) are installed above the first conveyor belt (1), a first lifting device (41) is installed on the installation frame (4), the first lifting device (41) is connected with a baffle (42), and a first proximity switch (43) is installed on the baffle (42); the tail end of the first conveyor belt (1) is provided with a plate turning mechanism (6), a second conveyor belt (7) is arranged in a matching way with the plate turning mechanism (6), and a cleaning and drying mechanism (8) is arranged in a matching way with the second conveyor belt (7); the cleaning and drying mechanism (8) comprises a rack (81) which is oppositely arranged, a plurality of pulleys (83) are coupled on the rack (81) through a rotating shaft (82), and grooves are formed in the circumferential direction of the pulleys (83) in an inwards concave mode; the rotating shaft (82) is provided with outer ring teeth and is connected through a toothed belt (84); one of the rotating shafts (82) is connected with a rotating device (85); a water spray head (86) and a drying spray head (87) are arranged along the conveying direction of the pulley (83); the upper part and the lower part of the frame (81) are provided with a water spray head (86) and a drying spray head (87).
2. The PCB back drilling cleaning system of claim 1, wherein the back drilling mechanism (5) comprises a drill bit (51), the drill bit (51) is connected with a rectangular block (52), the rectangular block (52) is slidably mounted in a guide block (53), a mounting groove (54) matched with the rectangular block (52) is formed in the guide block (53), a pressure sensing sheet (55) is mounted at the bottom of the mounting groove (54), the guide block (53) is connected with a rotating device (56), the rotating device (56) is connected with a transverse screw rod mechanism (57), the transverse screw rod mechanism (57) is connected with a longitudinal screw rod mechanism (58), and the longitudinal screw rod mechanism (58) is connected with a vertical screw rod mechanism (59).
3. The PCB backdrilling cleaning system of claim 2, wherein the transverse screw mechanism (57), the longitudinal screw mechanism (58) and the vertical screw mechanism (59) are identical in structure and comprise a rotating motor (510) and a sliding rod (511), and the rotating motor (510) is connected with a screw (512).
4. The PCB backdrilling cleaning system of claim 2, wherein the rotation device (56) is a drill motor.
5. The PCB backdrill cleaning system of claim 1, wherein the plate turnover mechanism (6) comprises an inclined plate (61), the inclined plate (61) is connected with a transverse plate (62), and a pressure sensor (63) is arranged on the transverse plate (62); the bottom of the inclined plate (61) is connected with a connecting shaft (64), and the connecting shaft (64) is connected with a turnover motor (65).
6. The PCB backdrilling cleaning system of claim 1, wherein a machine recognition system (9) is further mounted above the first conveyor belt (1).
CN201911068007.6A 2019-11-04 2019-11-04 PCB back drill cleaning system Active CN110843023B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911068007.6A CN110843023B (en) 2019-11-04 2019-11-04 PCB back drill cleaning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911068007.6A CN110843023B (en) 2019-11-04 2019-11-04 PCB back drill cleaning system

Publications (2)

Publication Number Publication Date
CN110843023A true CN110843023A (en) 2020-02-28
CN110843023B CN110843023B (en) 2024-01-02

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Application Number Title Priority Date Filing Date
CN201911068007.6A Active CN110843023B (en) 2019-11-04 2019-11-04 PCB back drill cleaning system

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150044338A1 (en) * 2012-03-26 2015-02-12 Mars, Incorporated Ultrasonic rotary molding
CN108339793A (en) * 2018-04-09 2018-07-31 奥士康科技股份有限公司 A kind of pcb board washing drying unit
CN208079511U (en) * 2018-04-19 2018-11-09 深圳市嘉祺通科技有限公司 A kind of device for small-sized PCB circuit board of producing once
CN208100543U (en) * 2018-05-02 2018-11-16 万岳辉 A kind of drilling pipelining device
CN109317449A (en) * 2018-11-27 2019-02-12 奥士康科技股份有限公司 A kind of pcb board automatic turnover cleaning device
CN110139493A (en) * 2019-04-29 2019-08-16 深圳市科路迪机械设备有限公司 Pcb board cleans line
CN211729452U (en) * 2019-11-04 2020-10-23 奥士康科技股份有限公司 PCB back drill cleaning system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150044338A1 (en) * 2012-03-26 2015-02-12 Mars, Incorporated Ultrasonic rotary molding
CN108339793A (en) * 2018-04-09 2018-07-31 奥士康科技股份有限公司 A kind of pcb board washing drying unit
CN208079511U (en) * 2018-04-19 2018-11-09 深圳市嘉祺通科技有限公司 A kind of device for small-sized PCB circuit board of producing once
CN208100543U (en) * 2018-05-02 2018-11-16 万岳辉 A kind of drilling pipelining device
CN109317449A (en) * 2018-11-27 2019-02-12 奥士康科技股份有限公司 A kind of pcb board automatic turnover cleaning device
CN110139493A (en) * 2019-04-29 2019-08-16 深圳市科路迪机械设备有限公司 Pcb board cleans line
CN211729452U (en) * 2019-11-04 2020-10-23 奥士康科技股份有限公司 PCB back drill cleaning system

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