CN2545572Y - Carrier feeding and automatic measuring machine for PC board drilling needle - Google Patents

Carrier feeding and automatic measuring machine for PC board drilling needle Download PDF

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Publication number
CN2545572Y
CN2545572Y CN 02231884 CN02231884U CN2545572Y CN 2545572 Y CN2545572 Y CN 2545572Y CN 02231884 CN02231884 CN 02231884 CN 02231884 U CN02231884 U CN 02231884U CN 2545572 Y CN2545572 Y CN 2545572Y
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CN
China
Prior art keywords
drill point
carrier
rotating disk
drill
gradation
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Expired - Fee Related
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CN 02231884
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Chinese (zh)
Inventor
陈光凌
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陈光凌
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Publication of CN2545572Y publication Critical patent/CN2545572Y/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a carried feeding and automatic measuring machine for PC board drilling needle. A base which is separated from a table-board and is isolated from a bed with quakeproof prevention is arranged at the appropriate position on the table-board of a machine station, an optical vision automatic measuring mechanism and a reciprocation shifting gripping jaw mechanism are arranged on the base and a graded rotary table provided with a separation type drilling needle vehicle is utilized so as to ensure that other mechanisms such as an upper ring, a retrograded ring, etc., combined on the table-board of the machine station are put into action. The gripping jaw can be moved to the position of the drilling needle vehicle to clamp the drilling needle vehicle through the reciprocation shifting gripping jaw mechanism when the graded rotary table rotates to the optical vision measuring mechanism, thus the drilling needle vehicle is separated from the graded rotary table and is moved back to be below the image processor (CCD) of the optical vision automatic measuring mechanism. After the image is captured, the computer computes and compares the data of the drill point surface, and the drill point angle, etc., so as to determine whether the drill needle meets the specification and the drilling needle vehicle recovers and returns back on the graded rotary table so as to ensure that the optical vision measuring mechanism operates with being separated from the vibration table-board.

Description

The carrier feeding and automatic measuring machine of PC twist drill pin
Technical field
The utility model provides a kind of carrier feeding and automatic measuring machine of improved PC twist drill pin, especially refer to a kind of utilize an optical visual automatic detecting machine structure and a reciprocal transfer mechanism and be arranged at one with pedestal that table top separates on, and utilize a gradation rotating disk with separate type drill point carrier, for can be in conjunction with encircling, move back mechanism and action such as ring on the board table top, and overcome on the table top vibrations that produced in each mechanism's running, and can on same board, finish the automatic detection effect of encircling operation and apex point face, drill point angle.
Background technology
Up to the present, the purpose of printed circuit board drilling is nothing more than following 2 points:
(1), copper clad laminate is connected, be beneficial in follow-up manufacturing course, the conductor line in upper and lower or middle layer is formed electric connection.
(2) allow the perforation part to form structural integrity and pinpoint sticking together.
And except material selection, the design of drill point geometric configuration is a lifeblood of having grasped the boring quality.Which kind of aperture, which kind of aspect ratio (Aspect Ratio), which kind of drilled baseplate material and which kind of Kong Wei etc. consider, and all determine in the design of geometric shape.
With regard to the check of drill point, the measurement of diameter and length can utilize non-destructive detecting instruments such as optics, and is not only more accurate again, and can avoid causing the unnecessary damage of drill point collision causing as vernier caliper etc.And the drill point profile partly should be checked the apex point diameter, shank diameter, thick, the land (Margin) of circularity, web (Web), furrow width be than (Flute to Land Ratio with one heart; Japanese be called ditch towel than), drill point angle, helix angle (Helix Angle) and gap (Clearance) etc.And wherein the inspection item of apex point face divides and has:
(1) critical defect: blade breach (Chipping), blade inner arc (Layback), eccentric (Pointshift), the basil become circle (Comer Rounding).
(2) minor defect: separately (Gap), the overlapping (Overlap) of blade outer arc (Hook), long sword crest line, big facet (Offset), major part (Flair), microcephaly (Negative).
Hence one can see that judges the good and bad of drill point, need compare many projects simultaneously, and being all the personnel of experienced and technology, conventional practice makes manual detection, but still the generation of unavoidable personal error, especially along with the drill point size is more and more little, the difficulty of manual detection benefit shape is increased, so adopting vision to detect automatically is inevitable mode, and have splendid performance, or the superior various mechanisms of going up, moving back ring automatically of the precision control of arranging in pairs or groups again, then can significantly promote operating efficiency.And at above-mentioned needs, the external early existing robotization detection board of the automatic detection mode of vision that adopts is for the apex point face and the drill point angle that detect drill point, and domestic relevant dealer also is engaged in improvement design, as " the automatically accurate of PC twist drill hole target drill around-France and device " patent of invention of Taiwan Announcement Number 448082 (case number No. 88113085), " PC twist drill hole target drill automatically accurate around-France and device appends (one) " patent of invention of Announcement Number 469189 (case number No. 88113085), or " the drill lip automatic testing method of PC twist drill hole target drill " patent of invention of Announcement Number 479126 (case number No. 90101096), or " drill bit is nested with the improvement of the device of locating ring " novel patent of Announcement Number 447349 (case number No. 89211638) etc.Only upper and lower ring or collar altimetric compensation or external diameter detect required operating environment and require more not rigorous relatively (critical), making to indulge on the board table top has vibrations especially to go up the vibroseis that collar vibrating disc is produced in the ring mechanism, but still can reach the requirement that collar altimetric compensation or external diameter detect; But the apex point face of drill point, the operating environment requirement that the vision-based detection of drill point angle is required, involving vibrations, environment light source, environment cleanliness etc. are then quite harsh, especially vibrations aspect is to influence that vision-based detection caused even detection [promptly by digitized video processor (CCD Camera) pick-up image and machine comparison as calculated] can't be carried out at all, this is that everybody desires most ardently the problem that overcomes for a long time, so with regard to present known technology, " the accurate automatically of PC twist drill hole target drill the around-France and device " patent of invention (case number No. 88113085) that comprises above-mentioned all patent having announced such as Taiwan Announcement Number 448082, " PC twist drill hole target drill automatically accurate around-France and device appends (one) " patent of invention of Announcement Number 469189 (case number No. 88113085), " the drill lip automatic testing method of PC twist drill hole target drill " patent of invention of Announcement Number 479126 (case number No. 90101096) etc., then effective solution is not proposed all as yet at this problem, also therefore permanent next, drill point apex point face, the vision-based detection of drill point angle always can't be with last, following ring or combinations such as collar altimetric compensation or external diameter detection are arranged on the same board, cause the detection efficiency that can't reach one-stop operation.
Summary of the invention
So fundamental purpose of the present utility model is the carrier feeding and automatic measuring machine that is to provide a kind of PC twist drill pin, mainly be utilize an optical visual automatic detecting machine structure and a reciprocal transfer clip claw mechanism and be arranged at one separate with table top and shockproof pedestal on, and utilize a gradation rotating disk with separate type drill point carrier, make when gradation dial rotation during to optical visual testing agency, get this reciprocal transfer clip claw mechanism of mat, make jaw can be moved to drill point carrier position gripping drill point carrier, make this drill point carrier and gradation rotating disk separate and move back under the image processor (CCD) of optical visual automatic detecting machine structure, for behind the fechtable image by data such as Computing comparison apex point face and drill point angles, judge whether drill point meets the specification, the drill point carrier being replied playbacks again makes optical visual testing agency and the running of vibrations mesa-isolated on the gradation rotating disk, effectively overcome the vibrations that produced in other mechanism's running on the table top, and can on same board, finish ring operation and apex point face, the automatic detection of drill point angle, operating efficiency is improved, and and then the printed circuit board drilling operating efficiency is effectively promoted.
For enabling further to understand feature of the present utility model, conjunction with figs. describes in detail as the back now:
Description of drawings
Fig. 1: the configuration structure synoptic diagram that is each portion mechanism on the utility model board table top.
Fig. 2: look synoptic diagram on Fig. 1.
Fig. 3: the configuration schematic diagram that is Fig. 2.
Fig. 4: be on the utility model board optics vision testing machine structure synoptic diagram is set.
Fig. 5: the local enlarged diagram that is Fig. 4.
Fig. 6: the synoptic diagram that is reciprocal transfer clip claw mechanism of the utility model and gradation rotating disk.
Embodiment
Please refer to Fig. 1 to shown in Figure 3, the utility model " carrier feeding and automatic measuring machine of PC twist drill pin " comprises a gradation rotating disk 10, fixes on it to arrange to be provided with a plurality of drill point carriers 11, establish a drill point carrier 11 as spending, and each drill point carrier 11 can separate all with gradation rotating disk 10 bodies every 45.Fix in regular turn in the periphery of gradation rotating disk 1 again and dispose feeding mechanism 20 and hold concurrently that (apex point face cleaning mechanism 21 is at Fig. 1 for apex point face cleaning mechanisms 21, do not show among Fig. 2), automatically go up the double collar height compensation 30 of ring, OD Measuring structure 40, optical visual testing agency 50, discharging mechanism 60 is held concurrently and can be inserted transfer mechanism 70, defective products discharging and move back ring mechanism 80 etc., and the work flow of each portion mechanism is: the drill point box that will carry the fully-jewelled pin places on the conveying belt 22 of feeding mechanism 20 and moves to the location, by mechanical arm 23 successively one by one the clamping drill point to the drill point carrier 11 of gradation rotating disk 10, and earlier carry out apex point face cleaning operation by apex point face cleaning mechanism 21; Then gradation rotating disk 10 more successively stepping fix to turn to and automatically go up ring and hold concurrently collar height compensation 30 to put the collar, and utilize digitized video processor (CCD Camera) pick-up image and machine computing comparison as calculated, re-use step motor and promote drill point carrying out collar altimetric compensation, and wherein be main vibroseis for vibrating disc 31 with the feeding of collar auto arrangement; Gradation rotating disk 10 turns to OD Measuring structure 40 again, and utilize digitized video processor (CCD Camera) pick-up image and as calculated the machine computing obtain after external diameter, UC (Under Cutting) external diameter and the edge length comparison and judge whether drill point meets the specification; Gradation rotating disk 10 turns to optical visual testing agency 50 more then, be to utilize one group of high magnification digitized video processor (CCD Camera) 51 to cooperate light source 52, by data such as Computing comparison apex point face and drill point angles, judge whether drill point meets the specification behind the pick-up image; Gradation rotating disk 10 turns to the discharging mechanism 60 double transfer mechanisms 70 of inserting again then, detect qualified drill point and then look the different collecting modes that drill point is just being inserted or fallen to insert, can be directly transfer load in the discharging mechanism 60 on the empty drill point box on the conveying belt 62, or give gripping and spin inversion discharging again (promptly forming the mode of falling the contact pin) via falling to insert transfer mechanism 70 (being a rotating machine arm) earlier by the 61 direct gripping drill points of the mechanical arm in the discharging mechanism 60; Detecting underproof drill point does not then take out; Treat that gradation rotating disk 10 moves back ring and taking-up again when turning to the defective products discharging and moving back ring mechanism 80, finish on each drill point successively automatically, move back and encircle and the accurate process operation that detects.
And in the said structure, comprise gradation rotating disk 10, feeding mechanism 20, apex point face cleaning mechanism 21, the double collar height compensation 30 of automatic upward ring, OD Measuring structure 40, discharging mechanism 60 are held concurrently and can be inserted transfer mechanism 70, defective products discharging and move back ring mechanism 80 etc., all be also start to be set on the table top 90 of board, the vibrations of therefore going up vibrating disc 31 in the ring mechanism 30 automatically make other contiguous mechanism's all effected.
Refer again to Fig. 4 to shown in Figure 6, the principal character of the utility model " carrier feeding and automatic measuring machine of PC twist drill pin " is: utilize an optical visual automatic detecting machine structure 50 and a reciprocal transfer clip claw mechanism 100, and be arranged at one separate with table top 90 and shockproof pedestal 92 on, and make drill point carrier set on the gradation rotating disk 10 11 and gradation rotating disk 10 bodies form separable assembled state, make when gradation rotating disk 10 turns to optical visual testing agency 50, getting this reciprocal transfer clip claw mechanism 100 of mat makes its jaw 102 can precisely be displaced to drill point carrier 11 positions and gripping drill point carrier 11, this drill point carrier 11 is separated with gradation rotating disk 10 and move back to optical visual automatic detecting machine structure 50 image processor 51 under, for behind the image processor 51 fechtable images by data such as Computing comparison apex point face and drill point angles, judge whether drill point meets the specification, the jaw 102 that precisely is shifted is again replied to the correspondence position of drill point carrier 11 and with drill point carrier 11 and is playbacked on gradation rotating disk 10.
Now be described further with a preferred embodiment again: on the table top 90 of board, offer a sipes that runs through 91 in the position of optical visual automatic detecting machine structure 50, supply to set up a pedestal 92 in the sipes 91, and pedestal 92 is separated with table top 90, and the bottom of pedestal 92 is to be built up on the bed platform 93 of board, and utilize anti-vibration structure 94 as shock resistance block or vibration absorptive material and with the 93 effective shockproof isolation of bed platform, make pedestal 92 avoid the vibrations of table top 90 and have splendid stability.Optical visual automatic detecting machine structure 50 then is set on pedestal, and cooperate a reciprocal transfer clip claw mechanism 100, wherein this optical visual automatic detecting machine structure 50 is to utilize one group of high magnification digitized video processor (CCD Camera) 51 and cooperate light source 52, the image that supplies the fechtable drill point judges with by data such as Computing comparison apex point face and drill point angles whether drill point meets the specification; And back and forth transfer clip claw mechanism 100 is the belows that are arranged at the image processor 51 of optical visual automatic detecting machine structure 50, it mainly is made of back and forth the fix a point guide bracket 101 and the mechanical jaw 102 of transfer function of a tool, and be that the gripping position of mechanical jaw 102 can precisely be located, can be provided with one in guide bracket 101 belows and can make the mobile table top 103 that XY axial adjustment is located; Mechanical again jaw 102 is front ends of being located at sliding shoe 104 on the guide bracket 101, when sliding shoe 104 is done shuttle fixed point displacement unit on guide bracket 101, mechanical jaw 102 is aimed at and clip is lived drill point carrier 11.
Gradation rotating disk 10 is provided with the separable drill point carrier 11 of eight equal parts again, as shown in Figure 6, bearing 12 is adopted two parallel guide rods 13 and is penetrated rotating disk 10 on the gradation rotating disk 10, guide rod 13 opposite sides are fixed on the catch 14 of rotating disk bottom surface, and on the gradation dish 10 and establish a compression spring 15 and contact with bearing 12, bearing 12 front ends are then established a mating groove 16 that matches with drill point carrier 11 shapes.And drill point carrier 11 be one can with the 12 separated structures bodies of bearing on the gradation rotating disk 10, its shape is corresponding with the mating groove 16 of bearing 12, and suitably tight ness rating embeds in the mating groove 16; Drill point carrier 11 is provided with a countersink pinhole 111 again, can be built-in in countersink pinhole 111 holes with O type ring 112 and plastic-steel ring 113 and utilize a fixed block 114 fixing, make drill point insert behind people's countersink pinhole 111 strong fix to live and be difficult for offing normal but use; The both sides on drill point carrier 11 tops can utilize positioning bead 115 and form the effect of elasticity clamping in the mating groove 16 of bearing 12 again; And fixed block 114 is positioned at drill point carrier 11 bottoms, is protruding being exposed at outside gradation rotating disk 10 outer rims and bearing 12 bottom surfaces, in its both sides and be provided with catching groove 116 and can be clamped by both sides for mechanical jaw 102.And use structure, slotting drill point, get drill point, on the collar, drill drift ring, when promoting drill point compensate for height and operation vision-based detection, can have concurrently antidetonation, stable, be not shifted and do not hinder advantage such as drill point handle.
Then when gradation rotating disk 10 turns to optical visual testing agency 50, sliding shoe 104 is extensible to fixed point on the guide bracket 101, make the mechanical jaw 102 of open-shaped attitude slip into fixed block 114 both sides of drill point carrier 11, machinery jaw 102 folds and is interposed on the catching groove 116 of fixed block 114, machinery jaw 102 contracts after again and simultaneously drill point carrier 11 is pulled away from bearing 12, and continue to move back to optical visual automatic detecting machine structure 50 image processor 51 under use for detecting, after to be detected, mechanical jaw 102 precisely is shifted and 11 answers of drill point carrier is playbacked on the bearing 12 of gradation rotating disk 10.
And above-described start relation, comprise the reciprocating type fixed point displacement unit of guide bracket 101 in the reciprocal transfer clip claw mechanism 100 and the actions such as opening and closing folder thing of mechanical jaw 102, all can utilize automation equipment to reach, and also can reach by cooperating of accurate driven unit such as pneumatic cylinder and guide rail or ball lead screw as the reciprocating type fixed point displacement elementary work able one of guide bracket 101, because of all belonging to the attainable scope of design of automatic technology, so be not repeated in this.

Claims (7)

1, a kind of carrier feeding and automatic measuring machine of improved PC twist drill pin, be that a gradation rotating disk that can fix and rotate is set on a board, and gradation rotating disk periphery fixes in regular turn and disposes the feeding mechanism apex point face cleaning mechanism of holding concurrently, automatically go up the double collar height compensation of ring, the OD Measuring structure, optical visual testing agency, discharging mechanism is held concurrently can insert transfer mechanism, defective products discharging and move back ring mechanism etc., for drill point is finished, move back ring and the accurate whole process operation that detects automatically, it is characterized in that: this optical visual automatic detecting machine structure is to cooperate a reciprocal transfer clip claw mechanism, and be arranged at jointly one separate with the board table top and shockproof pedestal on, and set drill point carrier is to form separable state with the gradation turntable body on this gradation rotating disk, when making the gradation dial rotation to optical visual testing agency, make the jaw of this reciprocal transfer clip claw mechanism can be displaced to the drill point carrier position and the gripping drill point carrier of gradation rotating disk, make this drill point carrier separate and move back under the image processor of optical visual automatic detecting machine structure from the gradation rotating disk, detect operation for optical visual automatic detecting machine structure, the jaw that is shifted again after to be detected the finishing playbacks on the gradation rotating disk to the drill point carrier is replied.
2, the carrier feeding and automatic measuring machine of improved PC twist drill pin according to claim 1, it is characterized in that: this pedestal is to be built on the table top of board in the sipes that runs through that the place, position of optical visual automatic detecting machine structure is offered, pedestal is separated with table top, and the bottom of pedestal is to be built up on the bed platform of board, and utilizes anti-vibration structure and the bed shockproof isolation in platform plane.
3, the carrier feeding and automatic measuring machine of improved PC twist drill pin according to claim 1, it is characterized in that: this optical visual automatic detecting machine structure is to utilize one group of high magnification digitized video processor and cooperate a radiation source, and the image of fechtable drill point and by data such as Computing comparison apex point face and drill point angles is used and is judged whether drill point meets the specification.
4, the carrier feeding and automatic measuring machine of improved PC twist drill pin according to claim 1, it is characterized in that: this reciprocal transfer clip claw mechanism is to be made of back and forth the fix a point guide bracket and the mechanical jaw of transfer function of a tool, should the machinery jaw be the front end of being located at a sliding shoe on the guide bracket wherein, when sliding shoe is done shuttle fixed point displacement unit on guide bracket, mechanical jaw is aimed at and clip is lived the drill point carrier.
5, the carrier feeding and automatic measuring machine of improved PC twist drill pin according to claim 4 is characterized in that: the adjustable mobile table top of position of adjusting of an XY axle is set in the guide bracket below, and using can the accurate traverse of adjusting mechanical jaw.
6, the carrier feeding and automatic measuring machine of improved PC twist drill pin according to claim 1, it is characterized in that: be to be provided with the separable drill point carrier of eight equal parts on the gradation rotating disk, and the corresponding position of each drill point carrier respectively is provided with a bearing on the gradation rotating disk, two parallel guide rods of this bearing mat penetrate rotating disk, be fixed in again on the catch of opposite side rotating disk bottom surface, and on the gradation rotating disk and establish a compression spring and contact with bearing, the bearing front end is then established a mating groove that matches with drill point carrier shape, and the drill point carrier be one can with bearing separated structures body on the gradation rotating disk, its shape is corresponding with the mating groove of bearing, and suitably tight ness rating embeds in the mating groove.
7. according to the carrier feeding and automatic measuring machine of claim 1 or 6 described improved PC twist drill pins, wherein the both sides on this drill point carrier top are provided with positioning bead, can in the mating groove of bearing, form the effect of elasticity clamping, the drill point carrier is provided with a countersink pinhole again, be provided with O type ring or plastic-steel ring in the countersink pinhole hole and utilize a fixed block to fix, and this fixed block is positioned at drill point carrier bottom, be protruding being exposed at outside gradation rotating disk outer rim and the bearing bottom surface, in its both sides and be provided with catching groove and can clamp by both sides for mechanical jaw.
CN 02231884 2002-06-04 2002-06-04 Carrier feeding and automatic measuring machine for PC board drilling needle Expired - Fee Related CN2545572Y (en)

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Application Number Priority Date Filing Date Title
CN 02231884 CN2545572Y (en) 2002-06-04 2002-06-04 Carrier feeding and automatic measuring machine for PC board drilling needle

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Application Number Priority Date Filing Date Title
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101133298B (en) * 2005-03-14 2010-05-26 马波斯S.P.A.公司 Apparatus and method for checking position and/or shape of mechanical pieces
CN102590219A (en) * 2012-02-10 2012-07-18 东莞市冠佳电子设备有限公司 Comprehensive PCB (printed circuit board) inspection device
CN102901452A (en) * 2012-08-28 2013-01-30 深圳深蓝精机有限公司 Circular shaft outer diameter detection machine
CN102901443A (en) * 2012-06-05 2013-01-30 深圳深蓝精机有限公司 Automatic cutter detection equipment
CN103196399A (en) * 2013-03-01 2013-07-10 吴江市博众精工科技有限公司 External dimension measuring machine for product
CN103323766A (en) * 2013-05-16 2013-09-25 深圳市燕麦科技开发有限公司 Rotating disc type detecting device
CN104308503A (en) * 2014-10-11 2015-01-28 成都市宏山科技有限公司 Hole processing knife classification mechanism
CN104949622A (en) * 2015-06-09 2015-09-30 东莞市升宏智能科技有限公司 PCB (printed circuit board) micro-drill parameter measuring system
CN104976952A (en) * 2015-06-09 2015-10-14 东莞市升宏智能科技有限公司 PCB micro drill parameter measurement system detection mechanism
CN108844476A (en) * 2018-04-24 2018-11-20 温州大学激光与光电智能制造研究院 A kind of aperture size tolerance detection method based on machine vision
CN109704050A (en) * 2017-10-25 2019-05-03 泰科电子(上海)有限公司 Discharge system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101133298B (en) * 2005-03-14 2010-05-26 马波斯S.P.A.公司 Apparatus and method for checking position and/or shape of mechanical pieces
CN102590219A (en) * 2012-02-10 2012-07-18 东莞市冠佳电子设备有限公司 Comprehensive PCB (printed circuit board) inspection device
CN102901443A (en) * 2012-06-05 2013-01-30 深圳深蓝精机有限公司 Automatic cutter detection equipment
CN102901443B (en) * 2012-06-05 2016-01-20 深圳深蓝精机有限公司 Automatic cutter detection equipment
CN102901452B (en) * 2012-08-28 2015-03-25 深圳深蓝精机有限公司 Circular shaft outer diameter detection machine
CN102901452A (en) * 2012-08-28 2013-01-30 深圳深蓝精机有限公司 Circular shaft outer diameter detection machine
CN103196399A (en) * 2013-03-01 2013-07-10 吴江市博众精工科技有限公司 External dimension measuring machine for product
CN103196399B (en) * 2013-03-01 2015-10-07 吴江市博众精工科技有限公司 A kind of product appearance size detects machine
CN103323766B (en) * 2013-05-16 2016-03-30 深圳市燕麦科技开发有限公司 Rotating disc type checkout equipment
CN103323766A (en) * 2013-05-16 2013-09-25 深圳市燕麦科技开发有限公司 Rotating disc type detecting device
CN104308503A (en) * 2014-10-11 2015-01-28 成都市宏山科技有限公司 Hole processing knife classification mechanism
CN104308503B (en) * 2014-10-11 2016-08-17 成都市宏山科技有限公司 A kind of mechanism of aperture knife tool classification
CN104949622A (en) * 2015-06-09 2015-09-30 东莞市升宏智能科技有限公司 PCB (printed circuit board) micro-drill parameter measuring system
CN104976952A (en) * 2015-06-09 2015-10-14 东莞市升宏智能科技有限公司 PCB micro drill parameter measurement system detection mechanism
CN104976952B (en) * 2015-06-09 2018-04-13 东莞市升宏智能科技有限公司 The micro- testing agencies for boring parameter measurement system of PCB
CN109704050A (en) * 2017-10-25 2019-05-03 泰科电子(上海)有限公司 Discharge system
CN108844476A (en) * 2018-04-24 2018-11-20 温州大学激光与光电智能制造研究院 A kind of aperture size tolerance detection method based on machine vision

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