CN107263296A - A kind of bearing outer ring polishing machine - Google Patents

A kind of bearing outer ring polishing machine Download PDF

Info

Publication number
CN107263296A
CN107263296A CN201710417451.9A CN201710417451A CN107263296A CN 107263296 A CN107263296 A CN 107263296A CN 201710417451 A CN201710417451 A CN 201710417451A CN 107263296 A CN107263296 A CN 107263296A
Authority
CN
China
Prior art keywords
motor
fixedly connected
electric expansion
workbench
outer ring
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Withdrawn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
CN201710417451.9A
Other languages
Chinese (zh)
Inventor
赵青华
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.)
Hunan Beauty Rebecca Polytron Technologies Inc
Original Assignee
Hunan Beauty Rebecca Polytron Technologies Inc
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 Hunan Beauty Rebecca Polytron Technologies Inc filed Critical Hunan Beauty Rebecca Polytron Technologies Inc
Priority to CN201710417451.9A priority Critical patent/CN107263296A/en
Publication of CN107263296A publication Critical patent/CN107263296A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/02Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
    • B24B29/04Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/005Feeding or manipulating devices specially adapted to grinding machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/02Frames; Beds; Carriages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • B24B41/067Work supports, e.g. adjustable steadies radially supporting workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/10Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention discloses a kind of bearing outer ring polishing machine, including workbench, the bottom of the workbench is fixedly connected with support frame, the bottom of support frame as described above inner chamber is fixedly connected with the first motor, the rotating shaft of first motor runs through the top of workbench and extends to the outside of workbench, the rotating shaft of first motor is fixedly connected with the first electric expansion bar, and the bottom thread of first electric expansion bar is connected with position-arresting disk.Using cooperatively by the first motor, the first electric expansion bar, position-arresting disk, groove, the second electric expansion bar and slipmat of the invention, the first motor moving axis bearing outer-ring is facilitated to rotate, pass through using cooperatively for the 3rd motor, driving gear, bearing, support bar, driven gear and the 3rd electric expansion bar, bearing outer ring can be swept after the completion of bearing outer ring polishing and fall position-arresting disk, the efficiency of polishing is improved by the present apparatus, the yields of product is improved, the production cost of enterprise is reduced.

Description

A kind of bearing outer ring polishing machine
Technical field
The present invention relates to bearing polishing technology field, specially a kind of bearing outer ring polishing machine.
Background technology
Bearing, for determining rotary shaft and other parts relative motion position, plays the parts of supporting or guide effect, it Major function be the mechanical rotary body of support, to reduce mechanical load coefficient of friction of the equipment in transmission process, bearing exists Need to be polished bearing outer ring when production, existing polishing mechanical is all that can only move polishing machine when work The surface of bearing outer ring is polished, so operating efficiency is low, and quality of finish is not also high, so as to add enterprise The production cost of industry.
The content of the invention
It is an object of the invention to provide a kind of bearing outer ring polishing machine, possess the advantage of high-effect high-quality, solve existing Some bearing outer ring polishing machine operating efficiencies are low, and quality of finish is poor, so that the problem of adding enterprise's production cost.
To achieve the above object, the present invention provides following technical scheme:A kind of bearing outer ring polishing machine, including workbench, The bottom of the workbench is fixedly connected with support frame, and the bottom of support frame as described above inner chamber is fixedly connected with the first motor, described The rotating shaft of first motor runs through the top of workbench and extends to the outside of workbench, and the rotating shaft of first motor is fixedly connected There is the first electric expansion bar, the bottom thread of first electric expansion bar is connected with position-arresting disk, first electric expansion bar Both sides, the top of front-end and back-end open up fluted, the inner chamber of the groove is fixedly connected with the second electric expansion bar, institute State the inside of workbench and be fixedly connected with the second motor, the rotating shaft of second motor on the right side of the first electric expansion bar It is fixedly connected with polished silicon wafer, the inside of the workbench and the 3rd electricity is fixedly connected with the left of the first electric expansion bar Machine, the rotating shaft of the 3rd motor is fixedly connected with driving gear, the top of the workbench and the left side for being located at the 3rd motor Bearing is fixedly connected with, the inner chamber of the bearing is connected with support bar, and the surface of the support bar is arranged with and driving tooth The driven gear that uses cooperatively is taken turns, the driving gear is engaged with driven gear, the is fixedly connected with the top of the support bar Three electric expansion bars.
It is preferred that, the both sides of the workbench bottom have been fixedly connected with supporting leg, and the bottom of the supporting leg is lived by rotating shaft It is dynamic to be connected with roller.
It is preferred that, the both sides of first motor are provided with snubber block, the top and bottom of the snubber block respectively with The bottom of workbench is fixedly connected with the bottom of support frame inner chamber.
It is preferred that, the described one end of second electric expansion bar away from groove is provided with slipmat, the surface of the slipmat It is provided with anti-slip veins.
It is preferred that, the surface of the driving gear is provided with the first teeth, and the surface of the driven gear is provided with and the The second teeth that one teeth are used cooperatively.
Compared with prior art, beneficial effects of the present invention are as follows:
1st, the present invention passes through the first motor, the first electric expansion bar, position-arresting disk, groove, the second electric expansion bar and slipmat Use cooperatively, bearing outer ring can be fixed, facilitate the first motor moving axis bearing outer-ring to rotate, pass through the 3rd motor, master Moving gear, bearing, support bar, driven gear and the 3rd electric expansion bar are used cooperatively, and can be polished and are completed in bearing outer ring Bearing outer ring is swept afterwards and falls position-arresting disk, bearing outer ring can be driven to rotate by the present apparatus, the efficiency of polishing is improved, improved The yields of product, reduces the production cost of enterprise.
2nd, the present invention can be moved preferably by setting roller to this machinery, be more convenient the progress of production, passed through Snubber block is set, the vibrations that the first motor is subject to can be slowed down, the service life of the first motor is extended, it is anti-skidding by setting Pad, can increase the frictional force between the second electric expansion bar and bearing outer ring inwall, more preferable fixing bearing outer ring, by setting Position-arresting disk is put, can prevent bearing outer ring from sliding to the bottom of the first electric expansion bar, the progress of polishing is more convenient, passes through Bearing is set, frictional force between support bar and workbench can be reduced, the polishing of bearing outer ring is more convenient, by setting the 3rd electricity Dynamic expansion link, the bearing outer ring for polishing completion can be swept and fall position-arresting disk, be more convenient next bearing outer ring polishing Carry out.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the first electric expansion bar of the invention and the second electric expansion bar attachment structure schematic diagram.
In figure:1 workbench, 2 support frames, 3 first motors, 4 first electric expansion bars, 5 position-arresting disks, 6 grooves, 7 second electricity Dynamic expansion link, 8 second motors, 9 polished silicon wafers, 10 the 3rd motors, 11 driving gears, 12 bearings, 13 support bars, 14 driven gears, 15 the 3rd electric expansion bars, 16 supporting legs, 17 rollers, 18 snubber blocks, 19 slipmat.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2, a kind of bearing outer ring polishing machine, including workbench 1 are referred to, the bottom of workbench 1 is fixedly connected with branch Support 2, the bottom of the inner chamber of support frame 2 is fixedly connected with the first motor 3, and the both sides of the first motor 3 are provided with snubber block 18, subtracted The top and bottom of shake block 18 are fixedly connected with the bottom of workbench 1 and the bottom of the inner chamber of support frame 2 respectively, by setting damping Block 18, can slow down the vibrations that the first motor 3 is subject to, and extend the service life of the first motor 3, and the rotating shaft of the first motor 3 is passed through Wear the top of workbench 1 and extend to the outside of workbench 1, the rotating shaft of the first motor 3 is fixedly connected with the first electric expansion bar 4, the bottom thread of the first electric expansion bar 4 is connected with position-arresting disk 5, by setting position-arresting disk 5, can prevent bearing outer ring from sliding To the bottom of the first electric expansion bar 4, the progress of polishing, both sides, the front-end and back-end of the first electric expansion bar 4 are more convenient Top open up fluted 6, the inner chamber of groove 6 is fixedly connected with the second electric expansion bar 7, and the second electric expansion bar 7 is remote One end of groove 6 is provided with slipmat 19, and the surface of slipmat 19 is provided with anti-slip veins, by setting slipmat 19, Neng Gouzeng Frictional force between big second electric expansion bar 7 and bearing outer ring inwall, more preferable fixing bearing outer ring, the inside of workbench 1 And the second motor 8 is fixedly connected with positioned at the right side of the first electric expansion bar 4, the rotating shaft of the second motor 8 is fixedly connected with polishing Piece 9, the inside of workbench 1 and is fixedly connected with the 3rd motor 10 positioned at the left side of the first electric expansion bar 4, the 3rd motor 10 Rotating shaft is fixedly connected with driving gear 11, the top of workbench 1 and is fixedly connected with bearing 12 positioned at the left side of the 3rd motor 10, By setting bearing 12, frictional force between support bar 13 and workbench 1 can be reduced, the polishing of bearing outer ring, bearing is more convenient 12 inner chamber is connected with support bar 13, and the surface of support bar 13 is arranged with the driven gear used cooperatively with driving gear 11 14, driving gear 11 is engaged with driven gear 14, and the surface of driving gear 11 is provided with the first teeth, the surface of driven gear 14 The second teeth used cooperatively with the first teeth are provided with, the top of support bar 13 is fixedly connected with the 3rd electric expansion bar 15, By setting the 3rd electric expansion bar 15, the bearing outer ring for polishing completion can be swept and fall position-arresting disk 5, be more convenient next axle The progress of bearing outer-ring polishing, the both sides of the bottom of workbench 1 have been fixedly connected with supporting leg 16, and the bottom of supporting leg 16 passes through rotating shaft Roller 17 is connected with, by setting roller 17, preferably this machinery can be moved, the progress of production is more convenient, Made by the cooperation of the first motor 3, the first electric expansion bar 4, position-arresting disk 5, groove 6, the second electric expansion bar 7 and slipmat 19 With, bearing outer ring can be fixed, facilitate the first motor 3 drive bearing outer ring rotation, pass through the 3rd motor 10, driving tooth Wheel 11, bearing 12, support bar 13, the electric expansion bar 15 of driven gear 14 and the 3rd are used cooperatively, and can be thrown in bearing outer ring Bearing outer ring is swept after the completion of light and falls position-arresting disk 5, bearing outer ring can be driven to rotate by the present apparatus, the effect of polishing is improved Rate, improves the yields of product, reduces the production cost of enterprise.
In use, bearing outer ring to be placed on to the surface of position-arresting disk 5, the first electric expansion bar 4 is stretched into bearing outer ring Inner chamber, is fixed to bearing outer ring by flexible second electric expansion bar 7, the first electric expansion is driven by the first motor 3 Bar 4 is rotated clockwise, and the first electric expansion bar 4 drives bearing outer ring to rotate clockwise, and is polished while being driven by the second motor 8 Piece 9 is rotated counterclockwise to be polished to the surface of bearing outer ring, after the completion of polishing, and the second electric expansion bar 7 is collapsible into In groove 6, the first electric expansion bar 4 shrinks the inner chamber for exiting bearing outer ring, and 11 turns of driving gear is driven by the 3rd motor 10 Dynamic, driving gear 11 drives driven gear 14 to rotate, and driven gear 14 drives support bar 13 to rotate, and support bar 13 drives the 3rd electricity Dynamic expansion link 15 rotates the top that bearing outer ring is swept to position-arresting disk 5.
In summary:The bearing outer ring polishing machine, passes through the first motor 3, the first electric expansion bar 4, the second electric expansion Bar 7, second motor 8, polished silicon wafer 9, the 3rd motor 10, driving gear 11, the electric expansion bar 15 of driven gear 14 and the 3rd are matched somebody with somebody Close, solve existing bearing outer ring polishing machine operating efficiency lowly, quality of finish is poor, so as to add enterprise's production cost Problem.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. a kind of bearing outer ring polishing machine, including workbench(1), it is characterised in that:The workbench(1)Bottom be fixedly connected There is support frame(2), support frame as described above(2)The bottom of inner chamber is fixedly connected with the first motor(3), first motor(3)Turn Axle runs through workbench(1)Top and extend to workbench(1)Outside, first motor(3)Rotating shaft be fixedly connected with First electric expansion bar(4), first electric expansion bar(4)Bottom thread be connected with position-arresting disk(5), described first is electronic Expansion link(4)Both sides, the top of front-end and back-end open up fluted(6), the groove(6)Inner chamber be fixedly connected with Two electric expansion bars(7), the workbench(1)Inside and positioned at the first electric expansion bar(4)Right side be fixedly connected with Two motors(8), second motor(8)Rotating shaft be fixedly connected with polished silicon wafer(9), the workbench(1)Inside and be located at First electric expansion bar(4)Left side be fixedly connected with the 3rd motor(10), the 3rd motor(10)Rotating shaft be fixedly connected There is driving gear(11), the workbench(1)Top and positioned at the 3rd motor(10)Left side be fixedly connected with bearing(12), The bearing(12)Inner chamber be connected with support bar(13), the support bar(13)Surface be arranged with and driving gear (11)The driven gear used cooperatively(14), the driving gear(11)With driven gear(14)Engagement, the support bar(13) Top be fixedly connected with the 3rd electric expansion bar(15).
2. a kind of bearing outer ring polishing machine according to claim 1, it is characterised in that:The workbench(1)The two of bottom Side has been fixedly connected with supporting leg(16), the supporting leg(16)Bottom roller is connected with by rotating shaft(17).
3. a kind of bearing outer ring polishing machine according to claim 1, it is characterised in that:First motor(3)Both sides It is provided with snubber block(18), the snubber block(18)Top and bottom respectively with workbench(1)Bottom and support frame(2) The bottom of inner chamber is fixedly connected.
4. a kind of bearing outer ring polishing machine according to claim 1, it is characterised in that:Second electric expansion bar(7) Away from groove(6)One end be provided with slipmat(19), the slipmat(19)Surface be provided with anti-slip veins.
5. a kind of bearing outer ring polishing machine according to claim 1, it is characterised in that:The driving gear(11)Surface It is provided with the first teeth, the driven gear(14)Surface be provided with the second teeth used cooperatively with the first teeth.
CN201710417451.9A 2017-06-06 2017-06-06 A kind of bearing outer ring polishing machine Withdrawn CN107263296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710417451.9A CN107263296A (en) 2017-06-06 2017-06-06 A kind of bearing outer ring polishing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710417451.9A CN107263296A (en) 2017-06-06 2017-06-06 A kind of bearing outer ring polishing machine

Publications (1)

Publication Number Publication Date
CN107263296A true CN107263296A (en) 2017-10-20

Family

ID=60064646

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710417451.9A Withdrawn CN107263296A (en) 2017-06-06 2017-06-06 A kind of bearing outer ring polishing machine

Country Status (1)

Country Link
CN (1) CN107263296A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107775517A (en) * 2017-11-23 2018-03-09 李百冲 A kind of bearing machining polishing machine
CN108098471A (en) * 2017-12-26 2018-06-01 新昌县江北轴承有限公司 A kind of single-station bearing race outer circumferential surface burnishing device
CN108145589A (en) * 2017-12-26 2018-06-12 新昌县江北轴承有限公司 A kind of high-efficiency bearing circle peripheral surface burnishing device
CN108747804A (en) * 2018-07-30 2018-11-06 湖南美蓓达科技股份有限公司 Positioning device for bearing outer ring channel ultraprecision grinding process
CN108818288A (en) * 2018-07-27 2018-11-16 湖南美蓓达科技股份有限公司 A kind of bearing polissoir that stability is good
CN109227014A (en) * 2018-10-12 2019-01-18 乔盘池 A kind of barrel of magnetic separator butt welding tooling
CN111906676A (en) * 2020-07-01 2020-11-10 程光辉 Device for carrying out rotary polishing on bearing outer ring based on circle characteristics
CN112720258A (en) * 2020-12-18 2021-04-30 象山县三环机电有限公司 Convenient fixing device for machining and polishing outer ring of hardware bearing
CN113579978A (en) * 2021-07-28 2021-11-02 张永华 Precision bearing inner ring polishing device and polishing method thereof
CN113910018A (en) * 2021-11-05 2022-01-11 浙江嘉科智造科技有限公司 Grinding and polishing device for machining mechanical sealing element

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107775517A (en) * 2017-11-23 2018-03-09 李百冲 A kind of bearing machining polishing machine
CN108098471A (en) * 2017-12-26 2018-06-01 新昌县江北轴承有限公司 A kind of single-station bearing race outer circumferential surface burnishing device
CN108145589A (en) * 2017-12-26 2018-06-12 新昌县江北轴承有限公司 A kind of high-efficiency bearing circle peripheral surface burnishing device
CN108818288A (en) * 2018-07-27 2018-11-16 湖南美蓓达科技股份有限公司 A kind of bearing polissoir that stability is good
CN108747804A (en) * 2018-07-30 2018-11-06 湖南美蓓达科技股份有限公司 Positioning device for bearing outer ring channel ultraprecision grinding process
CN109227014A (en) * 2018-10-12 2019-01-18 乔盘池 A kind of barrel of magnetic separator butt welding tooling
CN111906676A (en) * 2020-07-01 2020-11-10 程光辉 Device for carrying out rotary polishing on bearing outer ring based on circle characteristics
CN112720258A (en) * 2020-12-18 2021-04-30 象山县三环机电有限公司 Convenient fixing device for machining and polishing outer ring of hardware bearing
CN113579978A (en) * 2021-07-28 2021-11-02 张永华 Precision bearing inner ring polishing device and polishing method thereof
CN113910018A (en) * 2021-11-05 2022-01-11 浙江嘉科智造科技有限公司 Grinding and polishing device for machining mechanical sealing element

Similar Documents

Publication Publication Date Title
CN107263296A (en) A kind of bearing outer ring polishing machine
CN206869639U (en) A kind of bearing outer ring polishing machine
CN107324149A (en) A kind of semi-automatic admission machine
CN207223647U (en) A kind of efficient sanding apparatus of building decoration metope
CN107984359A (en) A kind of efficient sanding apparatus of building sheet
CN207326636U (en) A kind of T-type elevator guide rail sanding apparatus
CN209207182U (en) A kind of Gear Processing burnishing device
CN209364263U (en) A kind of copper pipe processing grinding device
CN113752107A (en) Automatic grinding device of pipeline for ocean engineering
CN214186575U (en) A global polishing grinding machanism for bearing production and processing
CN105965372B (en) A kind of automatic straightening polishing machine
CN108789076A (en) A kind of high efficiency auto parts and components processing grinding device
CN107009213A (en) Transparent organic glass automatically controls grinding and polishing equipment
CN116900823A (en) Furniture board surface treatment process
CN207143580U (en) A kind of textile process synthetic fibers cloth surface attachments cleaning plant
CN108714800A (en) A kind of mechanical equipment clamping device of stable operation
CN208451287U (en) Polishing device is used in a kind of processing of steel part
CN107520737A (en) A kind of outer surface burnishing device suitable for tubular workpiece
CN206662927U (en) A kind of steel pipe sander
CN108067977A (en) A kind of quick grinding device of five metalworkings
CN206732779U (en) Burnishing device at the top of massage ball
CN206998549U (en) A kind of sheet material double face synchronization burnishing device
CN206967235U (en) A kind of machine components sanding apparatus being conveniently replaceable
CN206234553U (en) A kind of transmission mechanical power unit
CN206436065U (en) A kind of novel bearing process equipment

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

Application publication date: 20171020

WW01 Invention patent application withdrawn after publication