CN112008430A - Device and method for installing and adjusting shear blade of laser welding machine - Google Patents
Device and method for installing and adjusting shear blade of laser welding machine Download PDFInfo
- Publication number
- CN112008430A CN112008430A CN202011005383.3A CN202011005383A CN112008430A CN 112008430 A CN112008430 A CN 112008430A CN 202011005383 A CN202011005383 A CN 202011005383A CN 112008430 A CN112008430 A CN 112008430A
- Authority
- CN
- China
- Prior art keywords
- shear blade
- module
- welding machine
- cutting edge
- shear
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention belongs to an installation and adjustment device and a method of a shear blade of a laser welding machine, and the installation and adjustment device comprises the shear blade and a lifting appliance for lifting the shear blade, wherein the lifting appliance is provided with a frame, the frame is provided with an auxiliary support and a support safety switch, the auxiliary support is provided with a perforating piece, the end part of the perforating piece is provided with a perforating head, the perforating head is provided with a through hole, and after the lifting appliance penetrates through the shear blade, the lifting appliance is used for fixing a safety pin on the lifting appliance; a method for installing and adjusting a cutting edge of a laser welding machine comprises the following steps: the device comprises a cleaning module, a lower shear blade mounting module, an upper shear blade mounting module, a shear blade parallelism detecting module, a shear blade clearance detecting module, a clamping platform clearance adjusting module and a clamping platform transverse compensating module.
Description
Technical Field
The invention belongs to the technical field of laser welding machines, and particularly relates to a device and a method for installing and adjusting a cutting edge of a laser welding machine.
Background
Laser welding machines, also commonly called laser welding machines, are machines for laser material processing, and are divided into laser die welding machines, automatic laser welding machines, laser spot welding machines, and optical fiber transmission laser welding machines according to working modes, wherein in laser welding, high-energy laser pulses are utilized to locally heat materials in a micro area, the energy radiated by laser is diffused into the materials through heat conduction, and the materials are melted to form a specific molten pool so as to achieve the purpose of welding; the laser welding machine is provided with a shear blade structure, and the existing device and the adjusting method are not available for the installation and adjustment of the shear blade.
Disclosure of Invention
The invention aims to provide a device and a method for installing and adjusting a cutting edge of a laser welding machine.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an installation adjusting device of laser welding machine cutting edge, includes the hoist of cutting edge and handling cutting edge, the hoist is equipped with the frame, is equipped with auxiliary stand and support safety switch on the frame, is equipped with the piece of perforating on the auxiliary stand, and the tip of the piece of perforating is equipped with the punch head, is equipped with the through-hole on the punch head, after the hoist passes the cutting edge, is used for fixing the safety pin on the hoist.
A method for installing and adjusting a cutting edge of a laser welding machine comprises the following steps: the device comprises a cleaning module, a lower shear blade mounting module, an upper shear blade mounting module, a shear blade parallelism detection module, a shear blade clearance detection module, a clamping platform clearance adjustment compensation module and a clamping platform transverse compensation adjustment module;
the cleaning module is provided with a cleaning unit, a preparation unit and a placing unit, the cleaning unit is used for wiping oil stains at the bottom of the shear blade, polishing rusts and polishing and oiling a welding machine base, the preparation unit is used for hoisting the shear blade to the inlet side of the welding machine shear blade through a lifting appliance, stabilizing the shear blade and then removing a movable cover plate at the top of the welding machine, the placing unit is used for aligning the shear blade base to the positioning slide block, pushing the shear blade into the first mounting position and aligning to the second mounting position, and dropping the shear blade;
the lower shear blade mounting module is used for screwing bolts on one side of the shear blades and screwing the bolts in a crossed sequence;
the upper shear blade mounting module places the upper shear blade on the lower shear blade, screws the shear blade bolt and screws the shear blade bolt in a cross sequence;
the module for detecting the parallelism of the shear blade is used for installing a dial indicator on one side of the shear blade and adjusting the running speed of the welding machine trolley to a maintenance mode, wherein the speed is 1 m/min;
the upper shear blade is lifted by the shear blade gap detecting module, and the gap between the cutting edge of the upper shear blade and the lower shear blade is measured by a clearance gauge;
adjusting a clamping table gap compensation module to shear a steel plate by using a transverse shear and then butt joint the steel plate, measuring whether the gap of a next clamping table is 1mm by using a feeler gauge, and if not, modifying a compensation value; whether the welding seam of the driving side and the operation side of the strip steel is checked through the magnifier by the transverse compensation module of the clamping table, if one side is deviated or two sides are deviated, the welding gap needs to be adjusted, the compensation amount of the transverse movement of the clamping table is adjusted, if two sides are deviated in the same direction, the condenser lens needs to be adjusted, and the moment arm of the condenser lens is detected and adjusted through the dial indicator.
The invention has the following beneficial effects: the invention adopts a special lifting appliance to lift the transverse cutting scissors of the laser welding machine, and the position of the transverse cutting scissors can be finely adjusted when the cutting edges are installed; the method for installing the shear blades comprises the steps of installing the upper shear blade and the lower shear blade by adopting a cross principle, checking the parallelism of the shear blades, checking the gap of the shear blades and adjusting the compensation of a clamping table.
Drawings
FIG. 1 is a schematic structural diagram of a laser welder.
Fig. 2 is a schematic view of the upper cutting edge.
Fig. 3 is a schematic view of the structure of the lower shear blade.
Fig. 4 is a structural schematic diagram (one) of the lifting appliance.
Fig. 5 is a schematic diagram (two) of the structure of the spreader.
Fig. 6 shows a spreader auxiliary stand.
Fig. 7 is a cradle safety switch.
Fig. 8 is a structural schematic diagram (one) of the perforating element.
Fig. 9 is a structural schematic view (two) of the piercing member.
Fig. 10 is a schematic view (one) of the positioning slider structure.
Fig. 11 is a schematic view (two) of the positioning slider structure.
Fig. 12 is a lower shear bolt mounting structure diagram (one).
Fig. 13 is a schematic view (ii) of a bolt mounting structure of the lower shear blade.
Fig. 14 is a schematic view of a bolt mounting structure of the upper shear blade.
Fig. 15 is a schematic view of a structure for detecting the parallelism of a cutting edge.
Fig. 16 is a schematic view of a structure for detecting the gap between the cutting edges.
In the figure: 1-a base frame; 2-a frame; 3, driving a rack; 4-cutting edge; 5-driving of scissors; 6, transporting waste materials; 7-strip steel detector; 8-positioning the edge of the welding machine; 9-supporting rolls; 10-laser welding head guide wheel; 11-laser welding head; 12-laser head support; 13-rolling wheel and rolling wheel guide; 14-a laser resonator; 15-a laser guidance system; 16-a weld detection system; 17-a printer; 18-upper shear edge; 19-lower shear edge; 20-lifting appliance, 2001-lifting appliance frame, 2002-adjusting wheel, 2003-auxiliary support frame, 2004-support frame safety switch; 21-piercing element, 2101-piercing head, 2102-safety pin; 22-a first mounting location; 23-a second mounting location; 24-bolt mounting locations; 25-dial indicator.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-16, an installation and adjustment device for a cutting edge of a laser welding machine comprises a cutting edge 4 and a lifting appliance 20 for lifting the cutting edge 4, wherein the lifting appliance 20 is provided with a frame 2001, the frame 2001 is provided with an auxiliary bracket 2003 and a bracket safety switch 2004, the auxiliary bracket 2003 is provided with a punching piece 21, the end part of the punching piece 21 is provided with a punching head 2101, the punching head 2101 is provided with a through hole for fixing a safety pin on the lifting appliance 20 after the lifting appliance 20 penetrates through the cutting edge, and the bottom of the lifting appliance 20 is provided with an adjustment wheel 2002.
A method for installing and adjusting a cutting edge of a laser welding machine comprises the following steps: the device comprises a cleaning module, a lower shear blade mounting module, an upper shear blade mounting module, a shear blade parallelism detection module, a shear blade clearance detection module, a clamping platform clearance adjustment compensation module and a clamping platform transverse compensation adjustment module;
a cleaning module: (1) the cleaning unit is used for wiping oil stains at the bottom of the shear blade 4, polishing rust stains completely, polishing a steel block on a base of the shear blade 4 before the shear blade 4 is installed, and coating oil; (2) a preparation unit, firstly, hoisting the cutting edge 4 to the inlet side of the welding machine cutting edge by using a lifting appliance 20; secondly, before the lifting appliance 20 is installed into the shear blade 4, the lifting appliance 20 needs to be moved to the other side to ensure that the shear blade 4 is lifted stably; then the movable cover plate above the welding machine is removed, so that the shear blade 4 is convenient to mount; (3) the placing unit aligns the base of the shear blade 4 with the positioning slide block, slowly pushes the shear blade 4 into the first mounting position 22 to align the second mounting position 23, and then slowly falls down the shear blade 4.
Lower shear blade installation module: placing the bolt into the bolt installation position 24, screwing the bolt of the scissors to be the bolt position on one side of the shear blade as shown in figures 12-13, and screwing the bolt according to a cross sequence, wherein the screwing sequence of the torque wrench is (i) - (c) - (d); sixthly, the particles are dried;
tightening was performed 5 times using 200NM, 250NM, 300NM, 400NM, 450NM torque wrenches, respectively.
Go up shear blade installation module: before the upper cutting edge 4 of the welding machine is installed, oil stains on the surface are wiped, the surface is polished by a No. 1000 grindstone, hydraulic oil is smeared on the surface of the cutting edge 4, the upper cutting edge is downward by an operation box beside the welding machine, then a cutting edge bolt is tightened for 5 times, namely, the first time, the second time and the third time according to the same crossing principle as the lower cutting edge; sixthly, the particles are dried;
and collecting the cushion block between the upper shear blade and the lower shear blade, and arranging the cushion block on the upper shear blade.
Detect shear blade depth of parallelism module: and (3) installing a dial indicator 25 on one side of the shear blade 4, adjusting the running speed of the welding machine trolley to a maintenance mode, wherein the speed is 1m/min, observing the change of the dial indicator in low-speed running, and requiring that the parallelism reaches 0.02 mm/m.
Detect the shear blade clearance module: the clearance between the cutting edge of the upper shear blade and the lower shear blade is measured by using a feeler gauge of 0.01mm after the upper shear blade is lifted, the clearance is generally required to be 0.04-0.06mm, and the clearance is the intersection of the upper shear blade 18 and the lower shear blade 19, namely the intersection where two rectangular structures are perpendicular to each other in the figure, as shown in fig. 16.
Adjusting a clamping table clearance compensation module: because the strip steel can be welded only after being butted after the shearing edge 4 shears, certain error cannot be avoided in the actual butting gap due to the influence of the shearing edge 4 when the strip steel is butted, the gap of the clamping table needs to be adjusted to compensate parameters, 2mm steel plates are required to be used as a reference for debugging, and 2 steel plates of 1250mm to 1500mm to 2mm are respectively placed on the inlet side and the outlet side of the welding machine clamping table; setting the gap of the clamping table to be 1mm, and then shearing and butting the steel plates by using a transverse shear; the feeler gauge is used for seeing whether the clearance is 1mm or not, if not, the compensation value needs to be modified, if the clearance setting compensation is reduced to be a negative value, and if the clearance setting compensation is increased to be a positive value; the operating side and the driving side are compared to see whether the gaps are consistent, and different compensation values need to be set when the gaps are inconsistent.
Adjusting a transverse compensation module of the clamping table: because gaps on two sides of the shear blade 4 are not completely consistent, the butted central line deviates, the deviation amount needs to be detected by a dotting test method, and the transverse compensation parameters of the clamping table are utilized for compensation; adjusting the laser mode to a dotting mode; normally welding in a dotting mode; checking whether the welding seams on the driving side and the operating side of the strip steel deviate or not by using a magnifier; and (3) detection results: if only one side of the driving side and the operation side deviates or the directions of the deviation of the two sides are opposite, the welding clearance is proved to be required to be adjusted, and the compensation amount of the transverse movement of the clamping table is adjusted; if both sides of the driving side and the operating side deviate in the same direction, the fact that the collecting lens needs to be adjusted is proved, the dial indicator is used for detecting, and the knob is rotated to adjust the force arm of the collecting lens.
The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (2)
1. The utility model provides an installation adjusting device of laser welding machine cutting edge, its characterized in that, includes the hoist of cutting edge and handling cutting edge, the hoist is equipped with the frame, is equipped with auxiliary stand and support safety switch on the frame, is equipped with the piece that punches on the auxiliary stand, and the tip of the piece that punches is equipped with the hole head, is equipped with the through-hole on the hole head, after the hoist passes the cutting edge, is used for fixing the safety pin on the hoist.
2. The method for installing and adjusting the cutting edge of the laser welding machine as claimed in claim 1, wherein the method comprises the following steps:
the device comprises a cleaning module, a lower shear blade mounting module, an upper shear blade mounting module, a shear blade parallelism detection module, a shear blade clearance detection module, a clamping platform clearance adjustment compensation module and a clamping platform transverse compensation adjustment module;
the cleaning module is provided with a cleaning unit, a preparation unit and a placing unit, the cleaning unit is used for wiping oil stains at the bottom of the shear blade, polishing rusts and polishing and oiling a welding machine base, the preparation unit is used for hoisting the shear blade to the inlet side of the welding machine shear blade through a lifting appliance, stabilizing the shear blade and then removing a movable cover plate at the top of the welding machine, the placing unit is used for aligning the shear blade base to the positioning slide block, pushing the shear blade into the first mounting position and aligning to the second mounting position, and dropping the shear blade;
the lower shear blade mounting module is used for screwing bolts on one side of the shear blades and screwing the bolts in a crossed sequence;
the upper shear blade mounting module places the upper shear blade on the lower shear blade, screws the shear blade bolt and screws the shear blade bolt in a cross sequence;
the module for detecting the parallelism of the shear blade is used for installing a dial indicator on one side of the shear blade and adjusting the running speed of the welding machine trolley to a maintenance mode, wherein the speed is 1 m/min;
the upper shear blade is lifted by the shear blade gap detecting module, and the gap between the cutting edge of the upper shear blade and the lower shear blade is measured by a clearance gauge;
adjusting a clamping table gap compensation module to shear a steel plate by using a transverse shear and then butt joint the steel plate, measuring whether the gap of a next clamping table is 1mm by using a feeler gauge, and if not, modifying a compensation value;
whether the welding seam of the driving side and the operation side of the strip steel is checked through the magnifier by the transverse compensation module of the clamping table, if one side is deviated or two sides are deviated, the welding gap needs to be adjusted, the compensation amount of the transverse movement of the clamping table is adjusted, if two sides are deviated in the same direction, the condenser lens needs to be adjusted, and the moment arm of the condenser lens is detected and adjusted through the dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005383.3A CN112008430B (en) | 2020-09-23 | 2020-09-23 | Device and method for mounting and adjusting shear blade of laser welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005383.3A CN112008430B (en) | 2020-09-23 | 2020-09-23 | Device and method for mounting and adjusting shear blade of laser welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112008430A true CN112008430A (en) | 2020-12-01 |
| CN112008430B CN112008430B (en) | 2022-07-01 |
Family
ID=73522924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011005383.3A Active CN112008430B (en) | 2020-09-23 | 2020-09-23 | Device and method for mounting and adjusting shear blade of laser welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112008430B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091204A (en) * | 2022-06-13 | 2022-09-23 | 首钢京唐钢铁联合有限责任公司 | Adjusting method for welding and shearing machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1009802A5 (en) * | 1995-11-22 | 1997-08-05 | Lefort Presses & Cisailles | Shear blade anchoring device |
| CN201458538U (en) * | 2009-08-19 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Sling for quickly replacing shear blade of disc shear in cross shearing unit |
| CN103990852A (en) * | 2014-04-29 | 2014-08-20 | 中冶南方工程技术有限公司 | Shear blade clearance adjusting device for crosscut shears |
| CN104355226A (en) * | 2014-10-27 | 2015-02-18 | 山东钢铁股份有限公司 | Device for replacing shear blade of hydraulic shearing machine |
| CN104439488A (en) * | 2013-09-16 | 2015-03-25 | 上海宝冶集团有限公司 | Method for quickly mounting and debugging rolling-off double-side shears |
| CN205802788U (en) * | 2016-06-20 | 2016-12-14 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Replacing cutting edge lifting device is cut in a kind of segmentation |
| CN109570752A (en) * | 2018-11-28 | 2019-04-05 | 北京首钢冷轧薄板有限公司 | A kind of laser trace of laser welder and the method for adjustment of strip sheared edge |
| CN110482398A (en) * | 2018-05-15 | 2019-11-22 | 宝山钢铁股份有限公司 | A kind of multipurpose double-sided shear blades suspender |
-
2020
- 2020-09-23 CN CN202011005383.3A patent/CN112008430B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1009802A5 (en) * | 1995-11-22 | 1997-08-05 | Lefort Presses & Cisailles | Shear blade anchoring device |
| CN201458538U (en) * | 2009-08-19 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Sling for quickly replacing shear blade of disc shear in cross shearing unit |
| CN104439488A (en) * | 2013-09-16 | 2015-03-25 | 上海宝冶集团有限公司 | Method for quickly mounting and debugging rolling-off double-side shears |
| CN103990852A (en) * | 2014-04-29 | 2014-08-20 | 中冶南方工程技术有限公司 | Shear blade clearance adjusting device for crosscut shears |
| CN104355226A (en) * | 2014-10-27 | 2015-02-18 | 山东钢铁股份有限公司 | Device for replacing shear blade of hydraulic shearing machine |
| CN205802788U (en) * | 2016-06-20 | 2016-12-14 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Replacing cutting edge lifting device is cut in a kind of segmentation |
| CN110482398A (en) * | 2018-05-15 | 2019-11-22 | 宝山钢铁股份有限公司 | A kind of multipurpose double-sided shear blades suspender |
| CN109570752A (en) * | 2018-11-28 | 2019-04-05 | 北京首钢冷轧薄板有限公司 | A kind of laser trace of laser welder and the method for adjustment of strip sheared edge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091204A (en) * | 2022-06-13 | 2022-09-23 | 首钢京唐钢铁联合有限责任公司 | Adjusting method for welding and shearing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112008430B (en) | 2022-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201871875U (en) | Laser-welding tooling fixture | |
| EP0258454A1 (en) | Method and device for cutting and welding steel belts | |
| CN106312567A (en) | Laser-assisted orthogonal micro-cutting device and method having automatic laser focus following function | |
| CN105773045A (en) | Welding tool for electric cabinets | |
| CN112008430B (en) | Device and method for mounting and adjusting shear blade of laser welding machine | |
| CN113333833A (en) | Plate groove detection tracking edge milling machine device and method | |
| CN201188070Y (en) | Locating processor for weld joint impact test piece | |
| CN111644751B (en) | Double-light-path laser cutting device for laser butt welding machine for super-thick steel plate | |
| CN209736905U (en) | Welding device | |
| CN115319364A (en) | Automatic welding gun angle adjusting device for welding steel structural part | |
| CN110253124B (en) | Plasma welding process of austenitic stainless steel 254SMo with bypass wire feeding | |
| CN113427059A (en) | Panel board width detection tracking edge milling machine device and method | |
| CN107790881A (en) | A kind of metal sandwich boards laser welding machinery formula pressue device and application method | |
| CN113953739A (en) | Flexible driving device for automatic splicing of straight edges of steel plates | |
| CN210147089U (en) | Novel angle steel cutting machine | |
| CN213068535U (en) | Quick positioner of rail welded joint hardness test | |
| JP3112379B2 (en) | Spacing adjustment device for thin plate butt welding machine | |
| CN211566474U (en) | Graphite saw cuts location detection device | |
| CN209736907U (en) | welding clamping workstation | |
| CN219190195U (en) | Board marking device for production | |
| CN215588315U (en) | Special tool of panel beating work piece automatic weld | |
| CN219582042U (en) | Rear axle box positioning tool of bulldozer | |
| CN203501989U (en) | Detecting platform for shear blade of laser welding machine | |
| CN216082603U (en) | Rapid nondestructive flaw detection auxiliary device | |
| CN109551035A (en) | The follow-up control method of plate cutting production line knife rest and retainer |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |