CN107442820A - Remove the gred drill bit in a kind of prepressing type pcb board hole - Google Patents

Remove the gred drill bit in a kind of prepressing type pcb board hole Download PDF

Info

Publication number
CN107442820A
CN107442820A CN201710729366.6A CN201710729366A CN107442820A CN 107442820 A CN107442820 A CN 107442820A CN 201710729366 A CN201710729366 A CN 201710729366A CN 107442820 A CN107442820 A CN 107442820A
Authority
CN
China
Prior art keywords
hollow bushing
pcb board
baffle plate
gland
bushing
Prior art date
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.)
Withdrawn
Application number
CN201710729366.6A
Other languages
Chinese (zh)
Inventor
沈建芳
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.)
Suzhou Wutong Electronics Co Ltd
Original Assignee
Suzhou Wutong Electronics 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 Suzhou Wutong Electronics Co Ltd filed Critical Suzhou Wutong Electronics Co Ltd
Priority to CN201710729366.6A priority Critical patent/CN107442820A/en
Publication of CN107442820A publication Critical patent/CN107442820A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/08Drills combined with tool parts or tools for performing additional working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B47/00Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/34Arrangements for removing chips out of the holes made; Chip- breaking arrangements attached to the tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/16Perforating by tool or tools of the drill type
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/0011Working of insulating substrates or insulating layers
    • H05K3/0044Mechanical working of the substrate, e.g. drilling or punching
    • H05K3/0047Drilling of holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2270/00Details of turning, boring or drilling machines, processes or tools not otherwise provided for
    • B23B2270/28Cleaning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention discloses a kind of prepressing type pcb board hole slagging-off drill bit, including hollow bushing, the stop collar that quantity is 2 is arranged symmetrically along the hollow bushing, drill mechanism, regulating block, spring, gland, trim ring, baffle plate, steel ball, hollow bushing is inserted in pcb board hole to be removed the gred, spring-compressed, so as to reaction gland, so that steel ball contacts with pcb board, then, hollow bushing rotates, under the damping action of elastic, drill mechanism is subject to centrifugal forces slowly to stretch out, the slag adhered in hole is smashed removal by the cutter head being arranged in drill mechanism, hole wall after hairbrush is processed to cutter head cleans, so as to which slag be removed, simultaneously, steel ball rolls between trim ring and baffle plate, so as to keep compressing effect.The apparatus structure is simple, can effectively remove slag, the bits of the attachment of PCB aperture inwall, not only environmentally friendly, moreover, removal effect is good, meanwhile, precompressed can be carried out automatically, prevented pcb board deformation from causing hole wall to destroy, improved pcb board yield.

Description

Remove the gred drill bit in a kind of prepressing type pcb board hole
Technical field
The present invention relates to a kind of mechanical device, more particularly to a kind of prepressing type pcb board hole slagging-off drill bit.
Background technology
Printed substrate, also known as pcb board, it is the supporter of electronic component, is the load of electronic component electrical connection Body, the complex manufacturing technology of pcb board, general flow are:Sawing sheet, one bronze medal of drilling, electroless copper plating (PTH) and plating, pattern transfer (circuit), graphic plating (two bronze medal) and plating protection tin, etching (SES), middle inspection, welding resistance (SolderMask), lettering symbol, gold Metal surface processing, finished product shaping, electrical testing, visual examination (FQC/OQA), packaging shipment, pcb board after piercing, PCB drilling in There is certain probability adhesion glue residue, therefore, pcb board needs to carry out the Slag treatment that removes photoresist before heavy copper, and existing method, which has, manually will De-smear removes in pcb board hole and medicament removes two kinds, goes de-smear often directly to disclose glue residue using hammer drill manually, due to Pcb board pore size, generally requires the hammer drill of plurality of specifications, generally requires to take considerable time in hammer drill during de-smear In switching, meanwhile, often process one piece of pcb board will clamping once, time-consuming, causes production efficiency low.In view of disadvantages described above, It is necessary to design a kind of prepressing type pcb board hole slagging-off drill bit in fact.
The content of the invention
It is an object of the invention to provide a kind of prepressing type pcb board hole slagging-off drill bit, prepressing type pcb board hole slagging-off drill bit Processed pcb board bore dia can be adapted to automatically, meanwhile, automatic prepressing, effectively improve production efficiency.
In order to solve the above technical problems, the technical scheme is that:Remove the gred drill bit in a kind of prepressing type pcb board hole, including Hollow bushing, the stop collar, drill mechanism, regulating block, spring, gland, pressure that quantity is 2 are arranged symmetrically along the hollow bushing Circle, baffle plate, steel ball, described stop collar are embedded in the tube wall of hollow bushing, and described stop collar is connected with hollow bushing close-fitting, Described drill mechanism runs through stop collar, and described drill mechanism is connected with stop collar gap, and described regulating block is positioned at hollow Outside of sleeve upper end, described regulating block are connected with hollow bushing screw thread, and described spring is located at regulating block lower end and positioned at sky Heart outside of sleeve, described spring are weldingly connected with regulating block and are movably connected with hollow bushing, and described gland is positioned at hollow Outside of sleeve and it is located at lower spring end, described gland is connected with hollow bushing gap and is weldingly connected with spring, described pressure Circle is located at gland lower end, and described trim ring is connected with gland screw thread, and described baffle plate is located at gland lower end, described baffle plate and pressure External threading is connected, and described steel ball is located at trim ring lower end and is movably connected with trim ring through the steel ball described in baffle plate and is lived with baffle plate It is dynamic to be connected;
Described drill mechanism also includes baffle plate, cutting, hairbrush, cutter head, elastic, described cutting through stop collar and Positioned at baffle plate side, described cutting is connected with stop collar gap and is integrally connected with baffle plate, and described hairbrush is located at outside cutting Side upper end, described hairbrush are connected with cutting close-fitting, and described cutter head is located at positioned at lower end on the outside of cutting, and described cutter head is with inserting Bar close-fitting is connected, and described elastic is located at baffle plate side and on the outside of cutting, and described elastic is Nian Jie with baffle plate to be connected And it is movably connected with cutting.
Further improvement of the invention is as follows:
Further, the material of the cutter head is nylon.
Further, the material of the elastic is rubber.
Further, described hollow bushing is additionally provided with gib block, and described gib block is located at hollow bushing outer upper end, Described gib block is integrally connected with hollow bushing.
Further, described hollow bushing is additionally provided with guide part, and described guide part is located at hollow bushing bottom, described Guide part and hollow bushing be integrally connected.
Further, described elastic is additionally provided with ball head, and described ball head is located at elastic top end, described ball Head is integrally connected with elastic.
Further, described gland is additionally provided with guide pin bushing, and described guide pin bushing is located at gland upper end and run through by hollow bushing, Described guide pin bushing is integrally connected with gland and is connected with hollow bushing gap.
Further, described guide pin bushing is additionally provided with guide groove, and described guide groove is located on the inside of guide pin bushing, described guide groove not through Guide pin bushing, gib block are cooperated with guide groove so that gland can be slided up and down along hollow bushing and rotated with hollow bushing.
Compared with prior art, prepressing type pcb board hole slagging-off drill bit, during work, hollow bushing inserts PCB to be removed the gred In plate hole, spring-compressed, so as to reaction gland so that steel ball contacts with pcb board, sets position of the regulating block on hollow bushing To put, you can the thrust of pcb board more than regulation steel ball, then, hollow bushing rotates, under the damping action of elastic, drill machine Structure is subject to centrifugal forces slowly to be stretched out, and the slag adhered in hole is smashed removal, hairbrush by the cutter head being arranged in drill mechanism Hole wall after being processed to cutter head cleans, so as to which slag be removed, meanwhile, steel ball rolls between trim ring and baffle plate, so as to protect Hold compression effect.The apparatus structure is simple, can effectively remove slag, the bits of the attachment of PCB aperture inwall, not only environmentally friendly, moreover, removing effect Fruit is good, meanwhile, precompressed can be carried out automatically, prevented pcb board deformation from causing hole wall to destroy, improved pcb board yield.
Brief description of the drawings
Fig. 1 shows front view of the present invention
Fig. 2 shows drill mechanism structure schematic diagram of the present invention
Fig. 3 shows gland top view of the present invention
The stop collar 2 of hollow bushing 1
The regulating block 4 of drill mechanism 3
The gland 6 of spring 5
The baffle plate 8 of trim ring 7
The gib block 101 of steel ball 9
The baffle plate 301 of guide part 102
The hairbrush 303 of cutting 302
The elastic 305 of cutter head 304
The guide pin bushing 604 of ball head 306
Guide groove 602
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of prepressing type pcb board hole slagging-off drill bit, including hollow bushing 1, along described hollow Sleeve pipe 1 is arranged symmetrically the stop collar 2 that quantity is 2, drill mechanism 3, regulating block 4, spring 5, gland 6, trim ring 7, baffle plate 8, steel Ball 9, described stop collar 2 are embedded in the tube wall of hollow bushing 1, and described stop collar 2 is connected with the close-fitting of hollow bushing 1, described Drill mechanism 3 run through stop collar 2, described drill mechanism 3 is connected with the gap of stop collar 2, and described regulating block 4 is positioned at hollow The outer upper end of sleeve pipe 1, described regulating block 4 are connected with the screw thread of hollow bushing 1, and described spring 5 is located at the lower end of regulating block 4 and position In the outside of hollow bushing 1, described spring 5 is weldingly connected with regulating block 4 and is movably connected with hollow bushing 1, described gland 6 Positioned at the outside of hollow bushing 1 and it is located at the lower end of spring 5, described gland 6 is connected with the gap of hollow bushing 1 and welded with spring 5 It is connected, described trim ring 7 is located at the lower end of gland 6, and described trim ring 7 is connected with the screw thread of gland 6, and described baffle plate 8 is located at gland 6 Lower end, described baffle plate 8 are connected with the screw thread of gland 6, and described steel ball 9 is located at the lower end of trim ring 7 and runs through baffle plate 8, described steel Ball 9 is movably connected with trim ring 7 and is movably connected with baffle plate 8;Described drill mechanism 3 also includes baffle plate 301, cutting 302, hairbrush 303rd, cutter head 304, elastic 305, described cutting 302 is through stop collar 2 and is located at the side of baffle plate 301, described cutting 302 It is connected with the gap of stop collar 2 and is connected with the one of baffle plate 301, described hairbrush 303 is located at the outer upper end of cutting 302, described Hairbrush 303 is connected with the close-fitting of cutting 302, and described cutter head 304 is located at the outside lower end of cutting 302, described cutter head 304 with The close-fitting of cutting 302 is connected, and described elastic 305 is located at the side of baffle plate 301 and positioned at the outside of cutting 302, described elastic 305 it is Nian Jie with baffle plate 301 be connected and be movably connected with cutting 302, the material of the cutter head 304 is nylon, the elastic 305 Material be rubber, described hollow bushing 1 is additionally provided with gib block 101, and described gib block 101 is located at the outside of hollow bushing 1 Upper end, described gib block 101 are connected with the one of hollow bushing 1, and described hollow bushing 1 is additionally provided with guide part 102, described Guide part 102 is located at the bottom of hollow bushing 1, and described guide part 102 is connected with the one of hollow bushing 1, described elastic 305 Ball head 306 is additionally provided with, described ball head 306 is located at the top of elastic 305, described ball head 306 and elastic 305 1 Body phase connects, and described gland 6 is additionally provided with guide pin bushing 601, and described guide pin bushing 601 is located at the upper end of gland 6 and run through by hollow bushing 1, Described guide pin bushing 601 is connected with the one of gland 6 and is connected with the gap of hollow bushing 1, and described guide pin bushing 601 is additionally provided with guide groove 602, Described guide groove 602 is located at the inner side of guide pin bushing 601, and described guide groove 602 is not through guide pin bushing 601, gib block 101 and the phase of guide groove 602 Mutually coordinate so that gland 6 can be slided up and down along hollow bushing 1 and rotated with hollow bushing 1, and prepressing type pcb board hole slagging-off is bored Head, during work, hollow bushing 1 is inserted in pcb board hole to be removed the gred, and spring 5 compresses, so as to reaction gland 6 so that steel ball 9 Contacted with pcb board, position of the regulating block 4 on hollow bushing 1 is set, you can the thrust of the regulation pcb board of steel ball more than 9, then, Hollow bushing 1 rotates, and under the damping action of elastic 305, drill mechanism 3 is subject to centrifugal forces slowly to stretch out, and sets The slag adhered in hole is smashed removal by the cutter head 304 in drill mechanism 3, and the hole wall after hairbrush 303 is processed to cutter head 304 is carried out Clean, so as to which slag be removed, meanwhile, steel ball 9 rolls between trim ring 7 and baffle plate 8, so as to keep compressing effect.The device knot Structure is simple, can effectively remove slag, the bits of the attachment of PCB aperture inwall, not only environmentally friendly, moreover, removal effect is good, meanwhile, it can enter automatically Row precompressed, prevent pcb board deformation from causing hole wall to destroy, improve pcb board yield.
The present invention is not limited to above-mentioned specific embodiment, one of ordinary skill in the art from above-mentioned design, Without performing creative labour, a variety of conversion made, it is within the scope of the present invention.

Claims (8)

  1. The drill bit 1. a kind of prepressing type pcb board hole is removed the gred, it is characterised in that be arranged symmetrically including hollow bushing, along the hollow bushing Quantity is the stop collar of 2, drill mechanism, regulating block, spring, gland, trim ring, baffle plate, steel ball, and the insertion of described stop collar is empty In the tube wall of heart sleeve pipe, described stop collar is connected with hollow bushing close-fitting, and described drill mechanism runs through stop collar, described Drill mechanism is connected with stop collar gap, and described regulating block is located at hollow bushing outer upper end, described regulating block with it is hollow Casing threads is connected, and described spring is located at regulating block lower end and on the outside of hollow bushing, and described spring welds with regulating block Connect and be connected and be movably connected with hollow bushing, described gland is located on the outside of hollow bushing and is located at lower spring end, described pressure Set is connected with hollow bushing gap and is weldingly connected with spring, and described trim ring is located at gland lower end, described trim ring and gland Screw thread is connected, and described baffle plate is located at gland lower end, and described baffle plate is connected with gland screw thread, and described steel ball is located under trim ring Hold and be movably connected with trim ring and be movably connected with baffle plate through the steel ball described in baffle plate;
    Described drill mechanism also includes baffle plate, cutting, hairbrush, cutter head, elastic, and described cutting is through stop collar and is located at Baffle plate side, described cutting are connected with stop collar gap and are integrally connected with baffle plate, and described hairbrush is located on cutting outside End, described hairbrush are connected with cutting close-fitting, and described cutter head is located at positioned at lower end on the outside of cutting, and described cutter head and cutting are tight With being connected, described elastic be located at baffle plate side and on the outside of the cutting, described elastic it is Nian Jie with baffle plate connected and with Cutting is movably connected.
  2. The head 2. prepressing type pcb board hole as claimed in claim 1 is removed the gred, it is characterised in that the material of the cutter head is nylon.
  3. The head 3. prepressing type pcb board hole as claimed in claim 1 is removed the gred, it is characterised in that the material of the elastic is rubber.
  4. The head 4. prepressing type pcb board hole as claimed in claim 1 is removed the gred, it is characterised in that described hollow bushing is additionally provided with guiding Bar, described gib block are located at hollow bushing outer upper end, and described gib block is integrally connected with hollow bushing.
  5. The head 5. prepressing type pcb board hole as claimed in claim 1 is removed the gred, it is characterised in that described hollow bushing is additionally provided with guiding Portion, described guide part are located at hollow bushing bottom, and described guide part is integrally connected with hollow bushing.
  6. The head 6. prepressing type pcb board hole as claimed in claim 1 is removed the gred, it is characterised in that described elastic is additionally provided with bulb Portion, described ball head are located at elastic top end, and described ball head is integrally connected with elastic.
  7. The head 7. prepressing type pcb board hole as claimed in claim 1 is removed the gred, it is characterised in that described gland is additionally provided with guide pin bushing, institute The guide pin bushing stated is located at gland upper end and run through by hollow bushing, described guide pin bushing and gland be integrally connected and with hollow bushing gap It is connected.
  8. The head 8. prepressing type pcb board hole as claimed in claim 7 is removed the gred, it is characterised in that described guide pin bushing is additionally provided with guide groove, institute The guide groove stated is located on the inside of guide pin bushing, and described guide groove is not through guide pin bushing.
CN201710729366.6A 2017-08-23 2017-08-23 Remove the gred drill bit in a kind of prepressing type pcb board hole Withdrawn CN107442820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710729366.6A CN107442820A (en) 2017-08-23 2017-08-23 Remove the gred drill bit in a kind of prepressing type pcb board hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710729366.6A CN107442820A (en) 2017-08-23 2017-08-23 Remove the gred drill bit in a kind of prepressing type pcb board hole

Publications (1)

Publication Number Publication Date
CN107442820A true CN107442820A (en) 2017-12-08

Family

ID=60494116

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710729366.6A Withdrawn CN107442820A (en) 2017-08-23 2017-08-23 Remove the gred drill bit in a kind of prepressing type pcb board hole

Country Status (1)

Country Link
CN (1) CN107442820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111001840A (en) * 2019-12-10 2020-04-14 广州市淞滨工程技术有限公司 High numerical control drilling equipment of stability that radiating effect is good

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87203994U (en) * 1987-03-24 1988-01-20 宁夏有色金属研究所 Four-blade four-point guiding boring apparatus
CN2745409Y (en) * 2004-11-13 2005-12-14 唐仁伟 Controllable hair treatment and dyeing comb
CN202137797U (en) * 2011-06-24 2012-02-08 河北汇金机电股份有限公司 Hole drill mechanism provided with paper scrap automatic collection device
CN204159937U (en) * 2014-09-02 2015-02-18 赵斌 A kind of drill bit with cleaning function
CN205184919U (en) * 2015-10-28 2016-04-27 苏州市东亿数控有限公司 Automatic chip removal device of PCB drilling machine
CN205324810U (en) * 2016-01-14 2016-06-22 广州小出钢管有限公司 Two -sided chamfer combination cutting tool drills
CN106002522A (en) * 2016-07-22 2016-10-12 大连海洋大学 Embedded part burr sweeps cleaning device
CN205765159U (en) * 2016-06-30 2016-12-07 苏州市惠利达数控有限公司 A kind of automatic plate press device for pcb board boring machine
CN205949936U (en) * 2016-08-01 2017-02-15 浙江欣兴工具有限公司 Cyclic annular cutting tool of carbide
CN107042592A (en) * 2017-06-16 2017-08-15 龚俏枚 A kind of pearl drilling equipment for being easy to clean
CN207479679U (en) * 2017-08-23 2018-06-12 苏州市吴通电子有限公司 Remove the gred drill bit in a kind of prepressing type pcb board hole

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87203994U (en) * 1987-03-24 1988-01-20 宁夏有色金属研究所 Four-blade four-point guiding boring apparatus
CN2745409Y (en) * 2004-11-13 2005-12-14 唐仁伟 Controllable hair treatment and dyeing comb
CN202137797U (en) * 2011-06-24 2012-02-08 河北汇金机电股份有限公司 Hole drill mechanism provided with paper scrap automatic collection device
CN204159937U (en) * 2014-09-02 2015-02-18 赵斌 A kind of drill bit with cleaning function
CN205184919U (en) * 2015-10-28 2016-04-27 苏州市东亿数控有限公司 Automatic chip removal device of PCB drilling machine
CN205324810U (en) * 2016-01-14 2016-06-22 广州小出钢管有限公司 Two -sided chamfer combination cutting tool drills
CN205765159U (en) * 2016-06-30 2016-12-07 苏州市惠利达数控有限公司 A kind of automatic plate press device for pcb board boring machine
CN106002522A (en) * 2016-07-22 2016-10-12 大连海洋大学 Embedded part burr sweeps cleaning device
CN205949936U (en) * 2016-08-01 2017-02-15 浙江欣兴工具有限公司 Cyclic annular cutting tool of carbide
CN107042592A (en) * 2017-06-16 2017-08-15 龚俏枚 A kind of pearl drilling equipment for being easy to clean
CN207479679U (en) * 2017-08-23 2018-06-12 苏州市吴通电子有限公司 Remove the gred drill bit in a kind of prepressing type pcb board hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111001840A (en) * 2019-12-10 2020-04-14 广州市淞滨工程技术有限公司 High numerical control drilling equipment of stability that radiating effect is good

Similar Documents

Publication Publication Date Title
CN107457207A (en) A kind of pcb board hole slag removal mechanism
CN205184919U (en) Automatic chip removal device of PCB drilling machine
CN105588602A (en) Boring, tapping and detecting all-in-one machine
CN107442820A (en) Remove the gred drill bit in a kind of prepressing type pcb board hole
CN207479679U (en) Remove the gred drill bit in a kind of prepressing type pcb board hole
CN107457824A (en) A kind of pcb board hole slag remover
CN107497736A (en) A kind of prepressing type pcb board hole deslagging device
CN111031666A (en) Large typesetting and processing method for optical module PCB product
CN207372353U (en) A kind of prepressing type pcb board hole slag removal mechanism
CN207127975U (en) A kind of pcb board hole slag remover
CN105364983B (en) A kind of PCB drilling machines automatic filings discharging device
CN204836836U (en) Multilayer circuit PCB board production line with electroplate half hole
CN207238582U (en) A kind of pcb board hole slag removal mechanism
CN207135361U (en) Remove the gred head in a kind of pcb board hole
CN213163138U (en) Radial drilling machine is used in speed reducer production
CN107442814A (en) A kind of prepressing type pcb board hole slag removal mechanism
CN107529286A (en) A kind of vertical pcb board contact cleaning device
CN107442491A (en) A kind of contact pcb board cleaning device
CN208195020U (en) A kind of pcb board hole deslagging device
CN107509316A (en) Remove the gred head in a kind of pcb board hole
CN104097034B (en) A kind of method for processing pen point
CN107497735A (en) A kind of pcb board hole deslagging device
CN108260281A (en) A kind of method that rivet is pressed on removal force fit plate
CN107690231A (en) A kind of pcb board cleans line
CN104668962B (en) A kind of drilling machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20171208