CN201483034U - Pressure foot device for drilling holes on precise printed circuit boards - Google Patents
Pressure foot device for drilling holes on precise printed circuit boards Download PDFInfo
- Publication number
- CN201483034U CN201483034U CN2009201826649U CN200920182664U CN201483034U CN 201483034 U CN201483034 U CN 201483034U CN 2009201826649 U CN2009201826649 U CN 2009201826649U CN 200920182664 U CN200920182664 U CN 200920182664U CN 201483034 U CN201483034 U CN 201483034U
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- pressure foot
- presser feet
- hole
- seat
- lid
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Abstract
A pressure foot device for drilling holes on precise printed circuit boards relates to auxiliary devices of digital control piercing machines. The pressure foot device comprises a small pressure foot, a BBD bore breaking detection sensor, a pressure foot seat, a connecting rod and a pressure foot cylinder, and is characterized in that two sides of the through hole of a lower boss of the pressure foot are respectively provided with a longitudinal pin jacketing hole, a disk-shaped pressure foot cover is further arranged, two sides of the pressure foot cover are upwards extended and are fixed with longitudinal pin columns, a screw head is fastened in a circular ring groove of the longitudinal pin column after screws and fastening threaded holes of the pressure foot seat are connected through screw threads, a small pressure foot is fixed on the center hole of the pressure foot cover, and a BBD bore breaking detection sensor is fixed between the boss on the lower plan of the pressure foot cover and the outer wall of the small pressure foot. The pressure foot device has the advantages that the pressure foot seat is improved to be a seat body and a pressure foot cover which can be detached, when the pressure foot seat needs disassembling, the screws only need unscrewing, and daily repairing and maintenance cleaning work can be implemented through detaching the pressure foot cover, the structure is simple, and the disassembly is convenient.
Description
Technical field:
The utility model relates to the digital control drilling machine auxiliary equipment, is specially adapted to high-end accurate multilayer printed circuit board, as boring pressure foot devices such as rigid-flex combined board and HDI high-density lamination plates.
Background technology:
In the pcb board manufacture process, wherein there be one flow process to hole to pcb board, for satisfying technological requirement,, all can on the pcb board face, add a cover plate as reducing burr that pcb board surface and hole wall produced, concentricity that the correcting drill bit enters pcb board and assisting the self-cleaning etc. of drill bit.At when boring, the applying degree between cover plate and pcb board, pcb board and the pcb board, can directly have influence on the service life of drilling accuracy and cutter.
For this reason, each drilling machine all designs the device that a kind of industry is called " pressure foot ", and it act as:
1. before drill bit enters pcb board earlier by " little presser feet " push down cover plate and below pcb board, fit tightly between cover plate and the pcb board guaranteeing, thus the machining accuracy in assurance hole;
2. external sweep-up pipe on the presser feet seat siphons away boring the dust that is produced when controlling;
3. BBD breaking of rod detecting sensor can be set below the presser feet seat, whether detect the breaking of rod.
The pressure foot device is made up of little presser feet, BBD breaking of rod detecting sensor, presser feet seat, connecting rod, presser feet cylinder, the presser feet seat is a boss shape cylinder, central authorities are provided with the opening blind hole that makes progress, blind hole internal diameter and drilling machine main shaft external diameter are state movingly, the blind hole sidewall has a level to air suction opening, this air suction opening is connected with the dust catcher pipeline, the blind hole both sides offer stepped hole, the connecting rod that insert on stepped hole top is connected with the bolt thread that the stepped hole bottom is screwed into, and the connecting rod upper end is connected with the presser feet cylinder; Be fixed with little presser feet in the blind hole bottom medium pore, the cup-shaped body of little presser feet, cup is provided with through hole in an end, and the slightly outstanding presser feet seat lower plane in cup baseplane is fixed with BBD breaking of rod detecting sensor between the concave station of presser feet seat lower plane and little presser feet outer wall.
Before pcb board boring, earlier pcb board and cover plate are clipped by positioner on workbench, CD-ROM drive motor drive drill spindle and whole pressure foot device are descending together during boring, in the descending process, little presser feet can at first touch cover plate, and by the pressure of presser feet cylinder cover plate and pcb board is pressed on the Tables for machines.After continuing descending about 1.2～1.5mm, drill bit begins to touch cover plate, drill bit begins the processing of holing to PCB under the rotation of the high speed of main shaft drives, when being machined to default hole depth, pressure foot device, drill bit and main shaft go upward to little presser feet together and break away from cover plate fully, after finishing the processing in a hole,, proceed the processing in next hole by X, the Y-axis coordinate points of the automatic travelling table of the servo-drive system of machine to working document.
Find that in actual use above rig often need be pulled down whole presser feet seat when doing following work:
1. the daily clean and maintenance of main shaft chuck (drill bit hold assembly), when cleaning;
2. when keeping in repair, adjust, proofreading and correct and cleaning BBD breaking of rod detecting sensor;
3. pick-up performance is bad, need dismantle cleaning when occurring stopping up;
4. little presser feet uses wearing and tearing, when normally changing;
Because the mechanical part of pressure foot device generally all is that once mounting puts in place, often regular tearing open, otherwise can influence precision and cause mechanical breakdown, and also existence unskilledly causes installing bad because of what operate, directly has influence on technological quality.Waste unnecessary downtime, brought very big inconvenience directly for production, maintenance maintenance.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and a kind of accurate printed wiring board PCB is provided boring pressure foot device.
Scheme of the present utility model is: boss shape cylinder presser feet seat central authorities are through hole, through hole internal diameter and drilling machine main shaft external diameter are state movingly, presser feet seat lower convex platform through hole both sides are respectively arranged with a longitudinal sleeve pin-and-hole, and each cover pin-and-hole is communicated with the fastening screw pit of its lateral outer side; Other is provided with plate-like presser feet lid, presser feet lid both sides extend upward and are fixed be the movingly vertical pin of state corresponding with presser feet lid two cover pin-and-holes, vertically pin top is provided with annular groove, and screw is with after presser feet seat fastening screw pit is threaded, and head of screw is fastened in the annular groove of vertical pin; Presser feet lid medium pore is being fixed little presser feet, is fixed with BBD breaking of rod detecting sensor between the concave station of presser feet lid lower plane and little presser feet outer wall.
Advantage of the present utility model is: the presser feet seat is modified into detachable pedestal and presser feet lid, when needing dismounting, only need unscrew screw, the presser feet lid be unloaded just can implement ordinary maintenance and maintenance clean work, convenient disassembly simple in structure has been avoided the numerous and diverse operation of presser feet seat integral body from the connecting rod dismounting.
Description of drawings:
Fig. 1 is the prior art structural representation.
Fig. 2 is the utility model structural representation.
The specific embodiment:
Structure of the present utility model is made up of little presser feet (7), BBD breaking of rod detecting sensor (6), presser feet seat (4), connecting rod (3), presser feet cylinder, it is characterized in that boss shape cylinder presser feet seat (4) central authorities are through hole, through hole internal diameter and drilling machine main shaft (2) external diameter are state movingly, presser feet seat (4) lower convex platform through hole both sides are respectively arranged with a longitudinal sleeve pin-and-hole, and each cover pin-and-hole is communicated with the fastening screw pit of its lateral outer side; Other is provided with plate-like presser feet lid (5), presser feet lid (5) both sides extend upward and are fixed be the movingly vertical pin of state corresponding with presser feet lid (5) two cover pin-and-holes, vertically pin top is provided with annular groove, screw is with after presser feet seat (4) fastening screw pit is threaded, and head of screw is fastened in the annular groove of vertical pin; Presser feet lid (5) medium pore is being fixed little presser feet (7), is fixed with BBD breaking of rod detecting sensor (6) between the concave station of presser feet lid (5) lower plane and little presser feet (7) outer wall.
Because drilling machine main shaft (2) clamps drill bit (1) and only does lifting movingly in presser feet seat (4) hole, so dust suction under the duty of little presser feet (7) top when having guaranteed boring.
The fastening presser feet lid of presser feet seat (4) boss lower screw (5) is pin vertically, makes presser feet lid (5) easy accessibility, and the maintenance maintenance cleaning is simplified.
Claims (1)
1. boring pressure foot device of accurate printed wiring board PCB, form by little presser feet (7), BBD breaking of rod detecting sensor (6), presser feet seat (4), connecting rod (3), presser feet cylinder, it is characterized in that boss shape cylinder presser feet seat (4) central authorities are through hole, through hole internal diameter and drilling machine main shaft (2) external diameter are state movingly, presser feet seat (4) lower convex platform through hole both sides are respectively arranged with a longitudinal sleeve pin-and-hole, and each cover pin-and-hole is communicated with the fastening screw pit of its lateral outer side; Other is provided with plate-like presser feet lid (5), presser feet lid (5) both sides extend upward and are fixed be the movingly vertical pin of state corresponding with presser feet lid (5) two cover pin-and-holes, vertically pin top is provided with annular groove, screw is with after presser feet seat (4) fastening screw pit is threaded, and head of screw is fastened in the annular groove of vertical pin; Presser feet lid (5) medium pore is being fixed little presser feet (7), is fixed with BBD breaking of rod detecting sensor (6) between the concave station of presser feet lid (5) lower plane and little presser feet (7) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201826649U CN201483034U (en) | 2009-08-25 | 2009-08-25 | Pressure foot device for drilling holes on precise printed circuit boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201826649U CN201483034U (en) | 2009-08-25 | 2009-08-25 | Pressure foot device for drilling holes on precise printed circuit boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201483034U true CN201483034U (en) | 2010-05-26 |
Family
ID=42421927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201826649U Expired - Fee Related CN201483034U (en) | 2009-08-25 | 2009-08-25 | Pressure foot device for drilling holes on precise printed circuit boards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201483034U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284720A (en) * | 2011-07-26 | 2011-12-21 | 深南电路有限公司 | Dust-collecting presser foot device |
| CN103042567A (en) * | 2011-10-13 | 2013-04-17 | 维嘉数控科技（苏州）有限公司 | Press pin switching device of printed circuit board (PCB) boring machine and switching method thereof |
| CN103831862A (en) * | 2012-11-20 | 2014-06-04 | 深南电路有限公司 | PCB drilling machine, use method thereof, pressing foot for drilling machine and machining method of pressing foot for drilling machine |
| CN107877606A (en) * | 2017-12-06 | 2018-04-06 | 天津工业大学 | A kind of AFRP composite method for drilling based on the collar and cutter interaction |
| CN110293602A (en) * | 2019-05-27 | 2019-10-01 | 广东工业大学 | A kind of cooling and dedusting pressure foot for pcb board drilling |
-
2009
- 2009-08-25 CN CN2009201826649U patent/CN201483034U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284720A (en) * | 2011-07-26 | 2011-12-21 | 深南电路有限公司 | Dust-collecting presser foot device |
| CN103042567A (en) * | 2011-10-13 | 2013-04-17 | 维嘉数控科技（苏州）有限公司 | Press pin switching device of printed circuit board (PCB) boring machine and switching method thereof |
| CN103042567B (en) * | 2011-10-13 | 2015-07-08 | 维嘉数控科技（苏州）有限公司 | Switching method ofpress pin switching device of printed circuit board (PCB) boring machine |
| CN103831862A (en) * | 2012-11-20 | 2014-06-04 | 深南电路有限公司 | PCB drilling machine, use method thereof, pressing foot for drilling machine and machining method of pressing foot for drilling machine |
| CN107877606A (en) * | 2017-12-06 | 2018-04-06 | 天津工业大学 | A kind of AFRP composite method for drilling based on the collar and cutter interaction |
| CN110293602A (en) * | 2019-05-27 | 2019-10-01 | 广东工业大学 | A kind of cooling and dedusting pressure foot for pcb board drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Xiaoqiang Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130825 |