CN110696073B - Novel cutting device and method for PCB - Google Patents

Novel cutting device and method for PCB Download PDF

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Publication number
CN110696073B
CN110696073B CN201910935044.6A CN201910935044A CN110696073B CN 110696073 B CN110696073 B CN 110696073B CN 201910935044 A CN201910935044 A CN 201910935044A CN 110696073 B CN110696073 B CN 110696073B
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China
Prior art keywords
pcb
circular
conveyor belt
cutting
mark
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CN201910935044.6A
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Chinese (zh)
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CN110696073A (en
Inventor
刘胜
陈莹花
李辉
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Hunan Luojia Intelligent Technology Co.,Ltd.
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Wuhan University WHU
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Priority to CN201910935044.6A priority Critical patent/CN110696073B/en
Publication of CN110696073A publication Critical patent/CN110696073A/en
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    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/22—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller
    • 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
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • 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
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0011—Working of insulating substrates or insulating layers
    • H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0011—Working of insulating substrates or insulating layers
    • H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
    • H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards

Abstract

The invention discloses a novel cutting device and method for a PCB, and belongs to the technical field of PCB manufacturing. Comprises a left conveyor belt and a right conveyor belt; a cutting device is arranged between the conveyor belts, wherein the speed of the contact point of the circular cutter and the PCB is the same as that of the contact point, and a bearing cylinder is arranged under the cutter; meanwhile, the control device adjusts the position of the circular cutter in due time according to the data received from the CCD visual positioning technology. The invention solves the problems of low cutting precision and low success rate in the PCB production process of people in the prior art. The PCB cutting machine is simple in structure, high in PCB cutting precision and high in success rate, the cut PCB is neat and has few burrs, and the product quality of the PCB is improved.

Description

Novel cutting device and method for PCB
Technical Field
The invention belongs to the field of machinery, and particularly relates to a novel cutting device and method for a PCB.
Background
Pcb (printed Circuit board), which is called printed Circuit board (pcb) and is called printing plate for short, is an essential component in electronic products. Almost every electronic device uses a printed circuit board PCB for electrical interconnection of electronic components such as integrated circuits. The PCB needs to be cut into small plates during the manufacturing process so as to facilitate the quality monitoring or direct use. At present, it is common to perform simultaneous cutting of multiple PCBs, such as 201811648041.6, which discloses a PCB cutting device. However, when the circular cutter cuts the PCB, although the vicinity of the tangent point is supported sufficiently, there is no support right under the tangent point, which easily causes the two ends of the PCB to tilt. And the blade recovery movement is complex, and the repeated push-pull and rotation movement can reduce the service life of the device. In addition, without strict precision control, once the speed is not matched due to unreasonable cutting control, the PCB and the cutter head can be seriously damaged.
Disclosure of Invention
In order to solve the problems and optimize the cutting process, the invention provides a novel PCB cutting device which can realize accurate positioning and cutting and improve the cutting rate.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect, the present invention provides a novel PCB cutting apparatus, which is characterized in that: comprises a plurality of parallel circular cutters; the plurality of circular cutters are coaxially arranged and positioned above the left conveyor belt and the right conveyor belt, and the central axes of the plurality of circular cutters are mutually vertical to the projection line of the connecting line of the central points of the left conveyor belt and the right conveyor belt on the horizontal plane; a receiving cylinder is arranged between the left conveyor belt and the right conveyor belt; the receiving cylinder is positioned under the plurality of circular cutters and is arranged in parallel with the central axes of the plurality of circular cutters;
the plurality of circular cutters and the receiving cylinder are connected with a control device; the control device controls the movement speeds of the plurality of circular cutters and the contact points of the receiving cylinders and the PCB, and the transmission directions of the plurality of circular cutters, the receiving cylinders and the PCB are consistent and the speeds of the plurality of circular cutters, the receiving cylinders and the PCB are equal; the contact point is a contact point right below the PCB and the circular cutter during cutting;
the device also comprises a CCD visual positioning system and a dust collection pipe, wherein the CCD visual positioning system is positioned above the plurality of circular cutters; the dust collection pipe is positioned below the bearing cylinder and is connected with a dust collector; the dust collector is connected with a filter box, and a filter screen is arranged in the filter box to prevent dust from polluting the environment.
Preferably, the circular cutter is made of ultrathin diamond material.
In a second aspect, the present invention provides a novel PCB cutting method, which is characterized in that: the novel PCB cutting device is adopted; the method comprises the following steps:
1) the left conveyor belt conveys the PCB to the right conveyor belt, the CCD vision positioning system rapidly moves to the position of a Mark Mark point of the PCB, then the Mark point of the PCB is captured, the expansion ratio and the rotation ratio of the PCB are calculated, and corresponding compensation is carried out by adjusting the position of the blade so as to improve the cutting precision; wherein:
(1.1) capturing Mark points: in the early PCB punching process, drilling a circular Mark hole on a PCB as a Mark point; taking the Mark point as a reference, and taking an image by taking a CCD camera as a tool to obtain the actual position of the Mark point; the CCD camera is vertically arranged above the cutting device, an X-Y plane image of a circular hole on the PCB is obtained through shooting, edge information and a central point coordinate of a marking hole are extracted through image processing, and then a coordinate of a Mark point under a camera coordinate system is obtained;
(1.2) detecting and identifying Mark points on the substrate by using a high-resolution CCD (charge coupled device) camera, and comparing the detected data with stored data file data to calculate the position deviation degree of the PCB; meanwhile, the modified processing data are sent to a control device, and the control device adjusts the position of the circular cutter to perform corresponding compensation;
2) the circular cutter moves downwards under the control of the control device to cut the PCB placed in a single layer, and the speeds of the circular cutter at the contact points are equal, so that the section of the PCB obtained by cutting is vertically flat; simultaneously owing to be equipped with and accept the cylinder, make PCB board tangent point department has the bearing, and the cutting process is steady, the condition of PCB board both ends perk can not appear.
The invention has the following advantages and beneficial effects:
1. enough support is provided right below the tangent point, so that the PCB can be cut more stably;
2. the blade continuously rotates, and the recovery motion is not required to be designed, so that the service life of the cutting device is prolonged;
3. the position of the cutter is adjusted in real time by using a CCD visual positioning technology, so that the cutting precision is improved.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
fig. 2 is a side view of the device of the present invention.
In the figure: 1. a left conveyor belt; 2. a right conveyor belt; 3. a cutting device; 31. a circular cutter; 32. a receiving cylinder; 4. CCD viewer A sensory positioning system; 5. a PCB board; 4. a CCD visual positioning system; 31. a circular cutter; 32. receiving the cylinder.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments and drawings of the specification:
the novel PCB cutting apparatus as shown in the drawings comprises a plurality of parallel arranged circular cutters 31; the plurality of circular cutters 31 are coaxially arranged and are positioned above the left conveyor belt 1 and the right conveyor belt 2, and the central axes of the plurality of circular cutters 31 are mutually vertical to the projection line of the connecting line of the central points of the left conveyor belt 1 and the right conveyor belt 2 on the horizontal plane; a receiving cylinder 32 is arranged between the left conveyor belt 1 and the right conveyor belt 2; the receiving cylinder 32 is positioned right below the plurality of circular cutters 31 and is arranged in parallel with the central axes of the plurality of circular cutters 31; the plurality of circular cutters 31 and the receiving cylinder 32 are connected with a control device; the control device controls the movement speed of the contact points of the plurality of circular cutters 31 and the receiving cylinders 32 and the PCB 5, and enables the transmission directions of the plurality of circular cutters 31, the receiving cylinders 32 and the PCB 5 to be consistent and the speeds to be equal; the contact point is the contact point right below the PCB 5 and the circular cutter 31 during cutting; the device also comprises a CCD visual positioning system 4 and a dust collection pipe, wherein the CCD visual positioning system 4 is positioned above the plurality of circular cutters 31; the dust suction pipe is positioned below the bearing cylinder 32 and is connected with a dust collector; the dust collector is connected with a filter box, and a filter screen is arranged in the filter box to prevent dust from polluting the environment. The circular cutter 31 is an ultra-thin diamond material.
The use method is as follows: the PCB is conveyed to the right conveyor belt 2 by the left conveyor belt, the CCD vision positioning system 4 above the cutting device 3 moves to the position of a Mark point of the circuit board quickly, then the Mark point is captured, the expansion ratio and the rotation ratio are calculated, corresponding compensation is carried out by adjusting the position of the circular blade 31, and the cutting precision is improved. The circular cutter 31 gradually moves downwards under the control of the control device to cut the PCB 5 placed in a single layer, and the speeds of the contact points are equal, so that the section of the PCB 5 obtained by cutting is vertically flat; meanwhile, due to the existence of the bearing cylinder 32, the tangent point is supported, the cutting process is stable, and the situation that two ends of the PCB are tilted cannot occur.

Claims (1)

1. A novel PCB cutting method is characterized in that: the novel PCB cutting device comprises a plurality of circular cutters (31) which are arranged in parallel; the circular cutters (31) are coaxially arranged and are positioned above the left conveyor belt (1) and the right conveyor belt (2), and the central axes of the circular cutters (31) are mutually vertical to the projection line of the connecting line of the central points of the left conveyor belt (1) and the right conveyor belt (2) on the horizontal plane; a receiving cylinder (32) is arranged between the left conveyor belt (1) and the right conveyor belt (2); the receiving cylinder (32) is positioned under the plurality of circular cutters (31) and is arranged in parallel with the central axes of the plurality of circular cutters (31);
the plurality of circular cutters (31) and the receiving cylinder (32) are connected with a control device; the control device controls the movement speed of the contact points of the plurality of circular cutters (31) and the receiving cylinders (32) and the PCB (5), and enables the transmission directions of the plurality of circular cutters (31), the receiving cylinders (32) and the PCB (5) to be consistent and the speeds to be equal; the contact point is a contact point right below the PCB (5) and the circular cutter (31) during cutting;
the device also comprises a CCD visual positioning system (4) and a dust collection pipe, wherein the CCD visual positioning system (4) is positioned above the plurality of circular cutters (31); the dust collection pipe is positioned below the bearing cylinder (32), and the dust collection pipe is connected with a dust collector; the dust collector is connected with a filter box, and a filter screen is arranged in the filter box to prevent dust from polluting the environment;
the round cutter (31) is made of ultrathin diamond material;
the novel PCB cutting device is adopted; the method comprises the following steps:
1) the left conveyor belt conveys the PCB to the right conveyor belt, the CCD vision positioning system rapidly moves to the position of a Mark Mark point of the PCB, then the Mark point of the PCB is captured, the expansion ratio and the rotation ratio of the PCB are calculated, and corresponding compensation is carried out by adjusting the position of the blade so as to improve the cutting precision; wherein:
(1.1) capturing Mark points: in the early PCB punching process, drilling a circular Mark hole on a PCB as a Mark point; taking the Mark point as a reference, and taking an image by taking a CCD camera as a tool to obtain the actual position of the Mark point; the CCD camera is vertically arranged above the cutting device, an X-Y plane image of a circular hole on the PCB is obtained through shooting, edge information and a central point coordinate of a marking hole are extracted through image processing, and then a coordinate of a Mark point under a camera coordinate system is obtained;
(1.2) detecting and identifying Mark points on the substrate by using a high-resolution CCD (charge coupled device) camera, and comparing the detected data with stored data file data to calculate the position deviation degree of the PCB; meanwhile, the modified processing data are sent to a control device, and the control device adjusts the position of the circular cutter to perform corresponding compensation;
2) the circular cutter moves downwards under the control of the control device to cut the PCB placed in a single layer, and the speeds of the circular cutter at the contact points are equal, so that the section of the PCB obtained by cutting is vertically flat; simultaneously owing to be equipped with and accept the cylinder, make PCB board tangent point department has the bearing, and the cutting process is steady, the condition of PCB board both ends perk can not appear.
CN201910935044.6A 2019-09-29 2019-09-29 Novel cutting device and method for PCB Active CN110696073B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910935044.6A CN110696073B (en) 2019-09-29 2019-09-29 Novel cutting device and method for PCB

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Application Number Priority Date Filing Date Title
CN201910935044.6A CN110696073B (en) 2019-09-29 2019-09-29 Novel cutting device and method for PCB

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CN110696073B true CN110696073B (en) 2021-04-02

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111343788A (en) * 2020-03-04 2020-06-26 广东九联科技股份有限公司 Control system and method for PCB (printed circuit board) splitting
CN111331670B (en) * 2020-03-16 2021-06-08 宁波丞达精机股份有限公司 Shearing and material moving equipment of automatic lens shearing machine

Citations (5)

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Publication number Priority date Publication date Assignee Title
CN205086062U (en) * 2015-11-13 2016-03-16 佛山市顺德区禾惠电子有限公司 A automatic slitting device for FFC
CN206527779U (en) * 2016-12-22 2017-09-29 上海瑞孚管路系统有限公司 rubber cutting device
CN108262779A (en) * 2018-03-27 2018-07-10 东莞市手拉手电子科技有限公司 Novel PCB board separators
CN108972675A (en) * 2018-07-12 2018-12-11 深圳市四元数数控技术有限公司 A kind of web-like continuous sheet cutting method based on ccd image identification die-cutting machine
CN109262152A (en) * 2018-09-28 2019-01-25 深圳市冰海科技有限公司 A kind of double-station FPC ultraviolet laser cutting equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050001872A1 (en) * 2003-07-02 2005-01-06 Ahne Adam Jude Method for filtering objects to be separated from a media

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205086062U (en) * 2015-11-13 2016-03-16 佛山市顺德区禾惠电子有限公司 A automatic slitting device for FFC
CN206527779U (en) * 2016-12-22 2017-09-29 上海瑞孚管路系统有限公司 rubber cutting device
CN108262779A (en) * 2018-03-27 2018-07-10 东莞市手拉手电子科技有限公司 Novel PCB board separators
CN108972675A (en) * 2018-07-12 2018-12-11 深圳市四元数数控技术有限公司 A kind of web-like continuous sheet cutting method based on ccd image identification die-cutting machine
CN109262152A (en) * 2018-09-28 2019-01-25 深圳市冰海科技有限公司 A kind of double-station FPC ultraviolet laser cutting equipment

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Effective date of registration: 20220117

Address after: 414024 floors 2, 3 and 4, R & D building, Yueyang modern equipment manufacturing industrial park, muligang Avenue, Yueyang Economic and Technological Development Zone, Yueyang City, Hunan Province

Patentee after: Yueyang Luojia Intelligent Technology Co.,Ltd.

Address before: 430072 Hubei Province, Wuhan city Wuchang District of Wuhan University Luojiashan

Patentee before: WUHAN University

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 414022 floors 2, 3 and 4, R & D building, Yueyang modern equipment manufacturing industrial park, muligang Avenue, Yueyang Economic and Technological Development Zone, Hunan Province

Patentee after: Hunan Luojia Intelligent Technology Co.,Ltd.

Address before: 414024 floors 2, 3 and 4, R & D building, Yueyang modern equipment manufacturing industrial park, muligang Avenue, Yueyang Economic and Technological Development Zone, Yueyang City, Hunan Province

Patentee before: Yueyang Luojia Intelligent Technology Co.,Ltd.