CN107695523A - A kind of Laser Jet machine equipment of bearing automatic focusing - Google Patents

A kind of Laser Jet machine equipment of bearing automatic focusing Download PDF

Info

Publication number
CN107695523A
CN107695523A CN201710820488.6A CN201710820488A CN107695523A CN 107695523 A CN107695523 A CN 107695523A CN 201710820488 A CN201710820488 A CN 201710820488A CN 107695523 A CN107695523 A CN 107695523A
Authority
CN
China
Prior art keywords
grooved rail
fixed
workbench
cylinder
supporting plate
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.)
Pending
Application number
CN201710820488.6A
Other languages
Chinese (zh)
Inventor
姜岭
俞海松
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.)
This Water Chestnut Automobile Bearing Ltd Co Of Zhejiang
Original Assignee
This Water Chestnut Automobile Bearing Ltd Co Of Zhejiang
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 This Water Chestnut Automobile Bearing Ltd Co Of Zhejiang filed Critical This Water Chestnut Automobile Bearing Ltd Co Of Zhejiang
Priority to CN201710820488.6A priority Critical patent/CN107695523A/en
Publication of CN107695523A publication Critical patent/CN107695523A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/361Removing material for deburring or mechanical trimming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment

Abstract

A kind of Laser Jet machine equipment of bearing automatic focusing, including workbench, the both sides of workbench front end are provided with conveyor belt support, conveyer belt is installed on conveyor belt support, the middle part of the up band of conveyer belt is provided with the blend stop of longitudinal direction, blend stop is fixed on L-shaped brackets plate, it is fixed with supporting plate on the front end face of workbench, the first longitudinal grooved rail is fixed with workbench on rear side of conveyer belt, first grooved rail is distributed in the left side of blend stop, the rear end of first grooved rail is connected with the second horizontal grooved rail, the right-hand member of second grooved rail is connected with the 3rd horizontal grooved rail, the right-hand member of 3rd grooved rail is connected with the 4th longitudinal grooved rail, the front end of 4th grooved rail is provided with the supporting plate of longitudinal direction, supporting plate is distributed in the right side of blend stop, second grooved rail, 3rd grooved rail and the 4th grooved rail are each attached on the upper surface of workbench.He realizes that same equipment substep to the flange and end face stamp of bearing, saves equipment cost, while be effectively improved the space in workshop.

Description

A kind of Laser Jet machine equipment of bearing automatic focusing
Technical field:
The present invention relates to the technical field of Production of bearing equipment, more specifically to a kind of laser of bearing automatic focusing Stamp machine equipment.
Background technology:
At present in the production process of bearing, completing the bearing completed products of assembling needs to carry out stamp mark.Some existing axles Hold and be provided with flange, its requirement carries out stamp mark on the flange outer wall of bearing and the end face of bearing, and existing mode is logical Undue step carries out stamp, i.e., carries out end face stamp using a procedure, and another procedure carries out the stamp of bearing flange outer wall, this Equipment is just needed there are two stamp equipment, while two stamp equipment can take larger workshop space again.
The content of the invention:
The purpose of the present invention and provides a kind of Laser Jet of bearing automatic focusing aiming at the deficiency of prior art Machine equipment, it can realize that same equipment substep to the flange and end face stamp of bearing, saves equipment cost, while be effectively improved car Between space.
A kind of Laser Jet machine equipment of bearing automatic focusing, including workbench, the both sides of workbench front end are provided with Conveyor belt support, conveyer belt is installed on conveyor belt support, the up band and descending band of conveyer belt are distributed in the upper of workbench Lower both sides, the middle part of the up band of conveyer belt are provided with the blend stop of longitudinal direction, and blend stop is fixed on L-shaped brackets plate, fixed on supporting plate Have on the front end face of workbench, the first longitudinal grooved rail, the distribution of the first grooved rail are fixed with the workbench on rear side of conveyer belt In the left side of blend stop, the rear end of the first grooved rail is connected with the second horizontal grooved rail, and the right-hand member of the second grooved rail is connected with horizontal Three grooved rails, the right-hand member of the 3rd grooved rail are connected with the 4th longitudinal grooved rail, and the front end of the 4th grooved rail is provided with the supporting plate of longitudinal direction, supporting plate point Cloth is each attached on the upper surface of workbench in the right side of blend stop, the second grooved rail, the 3rd grooved rail and the 4th grooved rail, workbench Lower surface on be fixed with lift cylinder, the piston rod of lift cylinder is fixed on the bottom surface of supporting plate through workbench;
The front side of first grooved rail is provided with the first scraping wings, and the first scraping wings is fixed on the first longitudinal pusher cylinder On, the first pusher cylinder is fixed on air cylinder support, and air cylinder support is fixed on supporting plate;The left side of second grooved rail is provided with second Scraping wings, the second scraping wings are fixed on the piston rod of the second pusher cylinder, and the rear side of the 4th grooved rail pushes away provided with the horizontal the 3rd On flitch, the 3rd scraping wings is plugged on the upper conduit of H type supports, and longitudinal lead is formed on the bottom surface of the upper conduit of H type supports To groove, contiguous block, the work that H types support passes through contiguous block and the 3rd pusher cylinder of longitudinal direction are plugged with the guide groove of H type supports Stopper rod is affixed, and flat board is fixed with the upper surface of H type supports, and the probe of laser marker is placed on flat board, laser marker Main body be distributed in the left side of flat board and be fixed with mounting base, mounting base is fixedly arranged in the middle of swivel nut, mounting base bottom Swivel nut on be bolted with the both ends of longitudinal leading screw and be hinged on side stand, servomotor, servo electricity are fixed with side stand The rotating shaft of machine and leading screw are affixed, and guide sleeve is fixed with the mounting base of swivel nut both sides, longitudinal guiding is plugged with guide sleeve Bar, the both ends plugged and fixed of guide rod is on side stand;Side stand is fixed on workbench;
Relative left tumble cylinder and right tumble cylinder, left upset are respectively fixed with the workbench of the supporting plate both sides Left fixture block is fixed with the piston rod of cylinder, gripper cylinder, the piston of gripper cylinder are fixed with the piston rod of right tumble cylinder Right fixture block is fixed with bar.
Preferably, on the upper surface and conveyer belt of first grooved rail, the second grooved rail, the 3rd grooved rail, the 4th grooved rail, supporting plate The upper surface of row band is flush, and the arranged on left and right sides of the first grooved rail forms side shield, and side block is formed on rear side of the second grooved rail Plate, the front and rear sides of the 3rd grooved rail form side shield, side shield are formed on the right side of the 4th grooved rail,
Preferably, the notch of V-type is formed on the left side of the blend stop.
Preferably, the stroke of the first pusher cylinder is more than the width of conveyer belt.
Preferably, the length of the 3rd scraping wings is more than the length of the 4th grooved rail.
Preferably, be fixed with backing plate between described blend stop and supporting plate, the upper surface of blend stop and the up band of conveyer belt it Between be installed with gap.
The beneficial effects of the present invention are:
It proposes a kind of substep to the flange of bearing and the Laser Jet equipment of end face stamp, then can saving one The cost of stamp equipment, while it is effectively improved the space in workshop.
Brief description of the drawings:
Fig. 1 is the three-dimensional structural representation of the present invention;
Fig. 2 is the structural representation that the present invention faces;
Fig. 3 is the structural representation that the present invention overlooks;
Fig. 4 is the structural representation of side view of the present invention;
In figure:1st, workbench;2nd, conveyor belt support;3rd, conveyer belt;4th, blend stop;41st, notch;5th, supporting plate;6th, cylinder Support;7th, the first pusher cylinder;8th, the first scraping wings;9th, the first grooved rail;10th, the second grooved rail;11st, the 3rd grooved rail;12nd, the 4th groove Rail;13rd, supporting plate;14th, the second scraping wings;15th, the second pusher cylinder;16th, the 3rd scraping wings;17th, H types support;18th, flat board;19、 3rd pusher cylinder;20th, laser marker;21st, side stand;22nd, leading screw;23rd, guide rod;24th, guide sleeve;25th, servomotor; 26th, lift cylinder;27th, left fixture block;28th, right tumble cylinder;29th, gripper cylinder;30th, right fixture block;31st, left tumble cylinder;32nd, pacify Fill bottom plate;33rd, backing plate.
Embodiment:
Embodiment:As shown in Fig. 1 to 4, a kind of Laser Jet machine equipment of bearing automatic focusing, including workbench 1, work The both sides for making the front end of platform 1 are provided with conveyor belt support 2, are installed on conveyer belt 3 on conveyor belt support 2, the up band of conveyer belt 3 and Descending band is distributed in the both sides up and down of workbench 1, and the middle part of 3 up band of conveyer belt is provided with the blend stop 4 of longitudinal direction, and blend stop 4 is fixed On L-shaped brackets plate 5, it is fixed with supporting plate 5 on the front end face of workbench 1, on the workbench 1 of the rear side of conveyer belt 3 It is fixed with the first longitudinal grooved rail 9, the first grooved rail 9 is distributed in the left side of blend stop 4, and the rear end of the first grooved rail 9 is connected with horizontal Second grooved rail 10, the right-hand member of the second grooved rail 10 are connected with the 3rd horizontal grooved rail 11, and the right-hand member of the 3rd grooved rail 11 is connected with longitudinal direction The 4th grooved rail 12, the front end of the 4th grooved rail 12 is provided with the supporting plate 13 of longitudinal direction, and supporting plate 13 is distributed in the right side of blend stop 4, the second groove Rail 10, the 3rd grooved rail 11 and the 4th grooved rail 12 are each attached on the upper surface of workbench 1, solid on the lower surface of workbench 1 Surely there is lift cylinder 26, the piston rod of lift cylinder 26 is fixed on the bottom surface of supporting plate 13 through workbench 1;
The front side of first grooved rail 9 is provided with the first scraping wings 8, and the first scraping wings 8 is fixed on the first longitudinal pusher gas On cylinder 7, the first pusher cylinder 7 is fixed on air cylinder support 6, and air cylinder support 6 is fixed on supporting plate 5;A left side for second grooved rail 10 Side is provided with the second scraping wings 14, and the second scraping wings 14 is fixed on the piston rod of the second pusher cylinder 15, after the 4th grooved rail 12 Side is provided with the 3rd horizontal scraping wings 16, and the 3rd scraping wings 16 is plugged on the upper conduit of H types support 17, H types support 17 it is upper Longitudinal guide groove is formed on the bottom surface of conduit, contiguous block is plugged with the guide groove of H types support 17, H types support 17 passes through The piston rod of contiguous block and the 3rd pusher cylinder 19 of longitudinal direction is affixed, and flat board 18, laser are fixed with the upper surface of H types support 17 The probe of coder 20 is placed on flat board 18, and the main body of laser marker 20 is distributed in the left side of flat board 18 and is fixed with installation Bottom plate 32, mounting base 32 are fixedly arranged in the middle of swivel nut, longitudinal leading screw 22 are bolted with the swivel nut of the bottom of mounting base 32 Both ends are hinged on side stand 21, and servomotor 25 is fixed with side stand 21, and the rotating shaft of servomotor 25 and leading screw 22 are solid Connect, guide sleeve 24 is fixed with the mounting base 32 of swivel nut both sides, longitudinal guide rod 23, guide rod are plugged with guide sleeve 24 23 both ends plugged and fixed is on side stand 21;Side stand 21 is fixed on workbench 1;
Relative left tumble cylinder 31 and right tumble cylinder are respectively fixed with the workbench 1 of the both sides of supporting plate 13 28, left fixture block 27 is fixed with the piston rod of left tumble cylinder 31, and gripper cylinder is fixed with the piston rod of right tumble cylinder 28 29, right fixture block 30 is fixed with the piston rod of gripper cylinder 29.
Preferably, first grooved rail 9, the second grooved rail 10, the 3rd grooved rail 11, the 4th grooved rail 12, the upper surface of supporting plate 13 It is flush with the upper surface of 3 up band of conveyer belt, the arranged on left and right sides of the first grooved rail 9 forms side shield, after the second grooved rail 10 Side forms side shield, and the front and rear sides of the 3rd grooved rail 11 forms side shield, and the right side of the 4th grooved rail 12 forms side block Plate,
Preferably, the notch 41 of V-type is formed on the left side of the blend stop 4.
Preferably, the stroke of the first pusher cylinder 7 is more than the width of conveyer belt 3.
Preferably, the length of the 3rd scraping wings 16 is more than the length of the 4th grooved rail 12.
Preferably, be fixed with backing plate 33 between described blend stop 4 and supporting plate 5,3 up band of blend stop 4 and conveyer belt it is upper Gap is installed between end face.The beneficial effects of the present invention are:
Operation principle:The present invention is the Laser Jet machine equipment of bearing automatic focusing, real instead of two Laser Jet equipment Existing same bearing flange and the substep stamp operation of end face;
Working method is as follows:Bearing first passes through conveyer belt 3 and enters workbench 1, is stopped when mobile by blend stop 4, then By driving the first pusher cylinder 7 to push to bearing in the first grooved rail 9 and the second grooved rail 10, start the second pusher cylinder 15, Bearing in second grooved rail 10 is pushed to the second grooved rail 11 and the 4th grooved rail 12 by the second pusher cylinder 15, then in driving the 3rd Pusher cylinder 19 pushes to bearing on supporting plate 13, then drives gripper cylinder 29, realizes that left fixture block 27 and right fixture block 30 clamp Bearing, start laser marker 20, realize the stamp to bearing flange outer wall, then effect of the supporting plate 13 in lift cylinder 26 Under, supporting plate 13 declines, and then right tumble cylinder 28 and left tumble cylinder 31 are realized that bearing turns over and turn 90 degrees, while laser marker 20 It is movable focusing in the presence of the driving of servomotor 25, then realizes the stamp of bearing face;Then stamp process In, the bearing for completing stamp is pushed on the conveyer belt 3 on the right side of blend stop 4 by next bearing, conveying discharging.
The embodiment is to the illustrative present invention, not for the limitation present invention.Any those skilled in the art The embodiment can be modified under the spirit and scope without prejudice to the present invention, therefore the rights protection model of the present invention Enclose, should be as listed by the claim of the present invention.

Claims (6)

1. a kind of Laser Jet machine equipment of bearing automatic focusing, including workbench (1), it is characterised in that:Workbench (1) The both sides of front end are provided with conveyor belt support (2), and conveyer belt (3), the up band of conveyer belt (3) are installed on conveyor belt support (2) The both sides up and down of workbench (1) are distributed in descending band, the middle part of conveyer belt (3) up band is provided with the blend stop (4) of longitudinal direction, gear Bar (4) is fixed on L-shaped brackets plate (5), and supporting plate is fixed with the front end face of workbench (1) on (5), conveyer belt (3) Longitudinal the first grooved rail (9) is fixed with the workbench (1) of rear side, the first grooved rail (9) is distributed in the left side of blend stop (4), the The rear end of one grooved rail (9) is connected with horizontal the second grooved rail (10), and the right-hand member of the second grooved rail (10) is connected with the 3rd horizontal groove Rail (11), the right-hand member of the 3rd grooved rail (11) are connected with the 4th longitudinal grooved rail (12), and the front end of the 4th grooved rail (12) is provided with longitudinal direction Supporting plate (13), supporting plate (13) is distributed in the right side of blend stop (4), the second grooved rail (10), the 3rd grooved rail (11) and the 4th grooved rail (12) it is each attached on the upper surface of workbench (1), lift cylinder (26) is fixed with the lower surface of workbench (1), rises The piston rod of sending down abnormally ascending cylinder (26) is fixed on the bottom surface of supporting plate (13) through workbench (1);
The front side of first grooved rail (9) is provided with the first scraping wings (8), and the first scraping wings (8) is fixed on the first longitudinal pusher On cylinder (7), the first pusher cylinder (7) is fixed on air cylinder support (6), and air cylinder support (6) is fixed on supporting plate (5);The The left side of two grooved rails (10) is provided with the second scraping wings (14), and the second scraping wings (14) is fixed on the piston of the second pusher cylinder (15) On bar, the rear side of the 4th grooved rail (12) is provided with the 3rd horizontal scraping wings (16), and the 3rd scraping wings (16) is plugged on H type supports (17) upper conduit, longitudinal guide groove, the guiding of H types support (17) are formed on the bottom surface of the upper conduit of H types support (17) Contiguous block is plugged with groove, H types support (17) is affixed by the piston rod of contiguous block and the 3rd pusher cylinder (19) of longitudinal direction, H Flat board (18) is fixed with the upper surface of type support (17), the probe of laser marker (20) is placed on flat board (18), laser The main body of coder (20) is distributed in the left side of flat board (18) and is fixed with mounting base (32), and the middle part of mounting base (32) is consolidated Surely there is a swivel nut, the both ends that longitudinal leading screw (22) is bolted with the swivel nut of mounting base (32) bottom are hinged on side stand (21) On, servomotor (25) is fixed with side stand (21), the rotating shaft of servomotor (25) and leading screw (22) are affixed, swivel nut both sides Guide sleeve (24) is fixed with mounting base (32), longitudinal guide rod (23), guide rod (23) are plugged with guide sleeve (24) Both ends plugged and fixed on side stand (21);Side stand (21) is fixed on workbench (1);
Relative left tumble cylinder (31) and right tumble cylinder are respectively fixed with the workbench (1) of supporting plate (13) both sides (28) left fixture block (27), is fixed with the piston rod of left tumble cylinder (31), is fixed with the piston rod of right tumble cylinder (28) Gripper cylinder (29), right fixture block (30) is fixed with the piston rod of gripper cylinder (29).
A kind of 2. Laser Jet machine equipment of bearing automatic focusing according to claim 1, it is characterised in that:Described first Grooved rail (9), the second grooved rail (10), the 3rd grooved rail (11), the 4th grooved rail (12), supporting plate (13) upper surface and conveyer belt (3) on The upper surface of row band is flush, and the arranged on left and right sides of the first grooved rail (9) forms side shield, the rear side shaping of the second grooved rail (10) There is side shield, the front and rear sides of the 3rd grooved rail (11) forms side shield, side block is formed on the right side of the 4th grooved rail (12) Plate,
A kind of 3. Laser Jet machine equipment of bearing automatic focusing according to claim 1, it is characterised in that:The blend stop (4) notch (41) of V-type is formed on left side.
A kind of 4. Laser Jet machine equipment of bearing automatic focusing according to claim 1, it is characterised in that:Described first The stroke of pusher cylinder (7) is more than the width of conveyer belt (3).
A kind of 5. Laser Jet machine equipment of bearing automatic focusing according to claim 1, it is characterised in that:Described 3rd The length of scraping wings (16) is more than the length of the 4th grooved rail (12).
A kind of 6. Laser Jet machine equipment of bearing automatic focusing according to claim 1, it is characterised in that:Described gear Backing plate (33) is fixed between bar (4) and supporting plate (5), is installed between blend stop (4) and the upper surface of conveyer belt (3) up band Gap.
CN201710820488.6A 2017-09-13 2017-09-13 A kind of Laser Jet machine equipment of bearing automatic focusing Pending CN107695523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710820488.6A CN107695523A (en) 2017-09-13 2017-09-13 A kind of Laser Jet machine equipment of bearing automatic focusing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710820488.6A CN107695523A (en) 2017-09-13 2017-09-13 A kind of Laser Jet machine equipment of bearing automatic focusing

Publications (1)

Publication Number Publication Date
CN107695523A true CN107695523A (en) 2018-02-16

Family

ID=61171633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710820488.6A Pending CN107695523A (en) 2017-09-13 2017-09-13 A kind of Laser Jet machine equipment of bearing automatic focusing

Country Status (1)

Country Link
CN (1) CN107695523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112265390A (en) * 2020-10-22 2021-01-26 广州文冲船厂有限责任公司 Sign indicating number mechanism is beaten to flange

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203093341U (en) * 2013-01-30 2013-07-31 苏州迅镭激光科技有限公司 Automatic overturning laser marking tool
CN203844424U (en) * 2014-05-16 2014-09-24 苏州迅镭激光科技有限公司 Automatic two-sided marking device
US20150145942A1 (en) * 2013-05-17 2015-05-28 Coherent, Inc. Laser label-printer
CN204622839U (en) * 2015-05-18 2015-09-09 何万盛 A kind of full-automatic bearing laser marking machine
CN104908445A (en) * 2015-06-15 2015-09-16 苏州石丸英合精密机械有限公司 Keyboard turnover transfer mechanism of automatic keyboard laser marking machine
CN205344134U (en) * 2015-12-31 2016-06-29 广州码清机电有限公司 Take laser marking detection device of CIS scanning
CN205553588U (en) * 2016-04-08 2016-09-07 深圳市升达康科技有限公司 Two -sided marking machine of PCB board
CN205989563U (en) * 2016-08-19 2017-03-01 宁波中亿自动化装备有限公司 Laser marker
CN206317557U (en) * 2016-11-07 2017-07-11 重庆旭安科技有限责任公司 Bearing full-automatic laser marking machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203093341U (en) * 2013-01-30 2013-07-31 苏州迅镭激光科技有限公司 Automatic overturning laser marking tool
US20150145942A1 (en) * 2013-05-17 2015-05-28 Coherent, Inc. Laser label-printer
CN203844424U (en) * 2014-05-16 2014-09-24 苏州迅镭激光科技有限公司 Automatic two-sided marking device
CN204622839U (en) * 2015-05-18 2015-09-09 何万盛 A kind of full-automatic bearing laser marking machine
CN104908445A (en) * 2015-06-15 2015-09-16 苏州石丸英合精密机械有限公司 Keyboard turnover transfer mechanism of automatic keyboard laser marking machine
CN205344134U (en) * 2015-12-31 2016-06-29 广州码清机电有限公司 Take laser marking detection device of CIS scanning
CN205553588U (en) * 2016-04-08 2016-09-07 深圳市升达康科技有限公司 Two -sided marking machine of PCB board
CN205989563U (en) * 2016-08-19 2017-03-01 宁波中亿自动化装备有限公司 Laser marker
CN206317557U (en) * 2016-11-07 2017-07-11 重庆旭安科技有限责任公司 Bearing full-automatic laser marking machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112265390A (en) * 2020-10-22 2021-01-26 广州文冲船厂有限责任公司 Sign indicating number mechanism is beaten to flange

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Application publication date: 20180216