CN209350001U - A kind of grinding machine automatic charging baiting structure - Google Patents

A kind of grinding machine automatic charging baiting structure Download PDF

Info

Publication number
CN209350001U
CN209350001U CN201822229796.4U CN201822229796U CN209350001U CN 209350001 U CN209350001 U CN 209350001U CN 201822229796 U CN201822229796 U CN 201822229796U CN 209350001 U CN209350001 U CN 209350001U
Authority
CN
China
Prior art keywords
pair
grinding machine
pairs
sliding rail
automatic charging
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.)
Active
Application number
CN201822229796.4U
Other languages
Chinese (zh)
Inventor
付元光
张久恩
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.)
Sichuan Xubo Precision Technology Co Ltd
Original Assignee
Sichuan Xubo Precision Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Xubo Precision Technology Co Ltd filed Critical Sichuan Xubo Precision Technology Co Ltd
Priority to CN201822229796.4U priority Critical patent/CN209350001U/en
Application granted granted Critical
Publication of CN209350001U publication Critical patent/CN209350001U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The utility model discloses a kind of grinding machine automatic charging baiting structures, including pedestal, the identical support rod of two pairs of structures, support plate, electric sliding rail and the identical material storing box of a pair of of structure, two pairs of described support rod one end are placed on pedestal, the support plate is placed on two pairs of support rod other ends, the support plate lower wall surface, and the first groove is offered between two pairs of support rods, the utility model relates to grinding machine automatic charging blanking technical fields, it solves existing traditional feeding and blanking is carried manually by worker, since the grinding tool in grinding machine is grinding wheel, grinding wheel processes part in high speed rotation, manual handling contacts worker's hand easily with grinding wheel when work, the injury that can not be retrieved is caused to the hand of worker, part feeding baiting structure is using directly clamping, thus The problem of workpiece being damaged.

Description

A kind of grinding machine automatic charging baiting structure
Technical field
The utility model relates to grinding machine automatic charging blanking technical field, specially a kind of grinding machine automatic charging blanking Structure.
Background technique
With the development of society and the progress and raising of science and technology, people's lives level is gradually improved, grinding machine It playing an important role on part is processed and polished, traditional feeding and blanking are carried manually by worker, due to Grinding tool in grinding machine is grinding wheel, and grinding wheel processes part in high speed rotation, and manual handling makes worker's hand easily It is contacted with grinding wheel when work, the injury that can not be retrieved is caused to the hand of worker, part feeding baiting structure is using straight Clamping is connect, thus workpiece can be damaged, in view of the above-mentioned problems, further investigation, there is this case generation then.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of grinding machine automatic charging baiting structure, solves Existing traditional feeding and blanking are carried manually by worker, and since the grinding tool in grinding machine is grinding wheel, grinding wheel exists High speed rotation processes part, and manual handling contacts worker's hand easily with grinding wheel when work, to worker Hand cause the injury that can not be retrieved, thus part feeding baiting structure can damage workpiece using directly clamping The problem of.
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of grinding machine automatic charging Baiting structure, including pedestal, the identical support rod of two pairs of structures, support plate, electric sliding rail and the identical storing of a pair of of structure Case, two pairs of described support rod one end are placed on pedestal, and the support plate is placed on two pairs of support rod other ends, described Support plate lower wall surface, and be located between two pairs of support rods and offer the first groove, the electric sliding rail is recessed flush-mounted in first In slot, and sliding end leaks out the first groove, and loading and unloading absorption grasping structures, Yi Duisuo are mounted on electric sliding rail driving end It states material storing box to be placed on pedestal, and is located at absorption grasping structures two sides;
Grasping structures are adsorbed in the loading and unloading comprising: loading plate, the identical connecting plate of a pair of of structure, a pair of of structure phase Sliding rail together, servo motor, driving wheel, the identical L-type slide bar of two pairs of structures, the identical bearing of a pair of of structure, a pair of of structure phase With screw rod, driven wheel, the identical movable block of a pair of of structure, the identical cylinder of a pair of of structure, the identical upright bar of a pair of of structure with And the identical magnetic board of a pair of structure;
The loading plate is placed on electric sliding rail driving end, and a pair of connecting plate is placed in carrying board ends, described Loading plate lower wall surface offers identical second groove of a pair of of structure, and is located between a pair of connecting plate, a pair of cunning In a pair of second groove, the servo motor is placed on loading plate lower wall surface rail, and is located at a pair of cunning Between rail, the driving wheel is placed in servo motor driving end, and two pairs of L-type slide bar one end are placed in a pair of sliding rail On, third groove is offered on a pair of connecting plate, a pair of bearing is in third groove, a pair of screw rod It is connected to each other, and the hand of spiral on screw rod is on the contrary, simultaneously a pair of screw rod other end is in a pair of bearing inner race, institute It states driven wheel to be set at a pair of screw rod docking, and engages connection with driving wheel.A pair of movable block passes through threaded hole It is rotatably connected on a pair of screw rod, two pairs of L-type slide bars are placed in movable block side wall surface, and a pair of cylinder is placed in one To on the movable block lower wall surface, a pair of upright bar is placed in a pair of Telescopic-cylinder end, a pair of magnetic board placement In in a pair of upright bar, and a pair of magnetic board is opposite.
Preferably, be mounted with fixing clip between a pair of material storing box and pedestal: the fixing clip is for fixing storing Case.
Preferably, two pairs of support rod both ends are mounted with dead ring between pedestal and support plate respectively: the fastening Ring is for being fastenedly connected support rod.
Preferably, be mounted with fixing seat between the servo motor and loading plate: the fixing seat is for fixing servo motor.
Preferably, the loading plate lower wall surface, and be located at servo motor side and be mounted with frequency converter: the frequency converter and servo Electrical connection of motor adjusts servo motor revolving speed.
Preferably, the pedestal lower wall surface is mounted with non-slip mat: the non-slip mat is used to increase the frictional force of pedestal and bottom surface.
Preferably, be mounted with backing plate between the electric sliding rail and loading plate: the backing plate is for being isolated electric sliding rail driving End is directly contacted with loading plate.
Preferably, be mounted with reinforcing rod between the loading plate and a pair of connecting plate: the reinforcing rod connects for fixed Connect loading plate and connecting plate.
Beneficial effect
The utility model provides a kind of grinding machine automatic charging baiting structure, has following the utility model has the advantages that the grinding machine is used Automatic charging baiting structure realizes electrokinetic adsorption formula mode by loading and unloading clamping structure, and workpiece is carried out clamping loading and unloading, solves Determined existing traditional feeding and blanking is carried manually by worker, since the grinding tool in grinding machine is grinding wheel, sand Wheel processes part in high speed rotation, and manual handling contacts worker's hand easily with grinding wheel when work, right The hand of worker causes the injury that can not be retrieved, thus part feeding baiting structure can cause workpiece using directly clamping The problem of damage.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of grinding machine automatic charging baiting structure described in the utility model.
Fig. 2 is that the side of clamping structure is adsorbed in a kind of loading and unloading of grinding machine automatic charging baiting structure described in the utility model Depending on structural schematic diagram.
Fig. 3 is that facing upward for clamping structure is adsorbed in a kind of loading and unloading of grinding machine automatic charging baiting structure described in the utility model Depending on structural schematic diagram.
In figure: 1- pedestal;2- support rod;3- support plate;4- electric sliding rail;5- material storing box;6- loading plate;7- connecting plate; 8- sliding rail;9- servo motor;10- driving wheel;11-L type slide bar;12- bearing;13- screw rod;14- driven wheel;15- movable block; 16- cylinder;17- upright bar;18- magnetic board;19- fixing clip;20- dead ring;21- fixing seat;22- frequency converter;23- is anti-skidding Pad;24- backing plate;25- reinforcing rod.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of grinding machine automatic charging baiting structure, packet Include the identical support rod 2 of 1, two pair of structure of pedestal, support plate 3, electric sliding rail 4 and the identical material storing box 5 of a pair of of structure, two pairs Described 2 one end of support rod is placed on pedestal 1, and the support plate 3 is placed on two pairs of 2 other ends of support rod, the branch 3 lower wall surface of fagging, and be located between two pairs of support rods 2 and offer the first groove, the electric sliding rail 4 is recessed flush-mounted in first In slot, and sliding end leaks out the first groove, and the electric sliding rail 4 drives and is mounted with loading and unloading absorption grasping structures on end, a pair of The material storing box 5 is placed on pedestal 1, and is located at absorption grasping structures two sides, and grasping structures, packet are adsorbed in the loading and unloading It includes: loading plate 6, the identical connecting plate 7 of a pair of of structure, the identical sliding rail 8 of a pair of of structure, servo motor 9,10, two pairs of driving wheel The identical L-type slide bar 11 of structure, the identical bearing 12 of a pair of of structure, the identical screw rod 13 of a pair of of structure, driven wheel 14, Yi Duijie The identical movable block 15 of structure, the identical cylinder 16 of a pair of of structure, the identical upright bar 17 of a pair of of structure and a pair of of structure are identical Magnetic board 18, the loading plate 6 are placed in electric sliding rail 4 and drive on end, and a pair of connecting plate 7 is placed in 6 both ends of loading plate, 6 lower wall surface of loading plate offers identical second groove of a pair of of structure, and is located between a pair of connecting plate 7, a pair of In a pair of second groove, the servo motor 9 is placed on 6 lower wall surface of loading plate the sliding rail 8, and is located at one To between the sliding rail 8, the driving wheel 10 is placed in servo motor 9 and drives end, and two pairs of described 11 one end of L-type slide bar are placed in On a pair of sliding rail 8, third groove is offered on a pair of connecting plate 7, a pair of bearing 12 is recessed flush-mounted in third In slot, a pair of screw rod 13 is connected to each other, and the hand of spiral on screw rod 13 is on the contrary, simultaneously a pair of 13 other end of the screw rod is embedded in In in a pair of 12 inner ring of bearing, the driven wheel 14 is set at a pair of 13 docking of screw rod, and is nibbled with driving wheel 10 Close connection.A pair of movable block 15 is rotatably connected on a pair of screw rod 13 by threaded hole, and two pairs of L-type slide bars 11 dispose In in 15 side wall surface of movable block, a pair of cylinder 16 is placed on a pair of 15 lower wall surface of movable block, a pair of upright bar 17 are placed in a pair of 16 telescopic end of cylinder, and a pair of magnetic board 18 is placed in a pair of upright bar 17, and a pair of of institute It is opposite to state magnetic board 18, be mounted with fixing clip 19 between a pair of material storing box 5 and pedestal: the fixing clip 19 is for fixing Material storing box 5, two pairs of 2 both ends of support rod are mounted with dead ring 20 between pedestal 1 and support plate 3 respectively: the dead ring 20 for being fastenedly connected support rod 2, and be mounted with fixing seat 21 between the servo motor 9 and loading plate 6: the fixing seat 21 is used for Fixed servo motor 9,6 lower wall surface of loading plate, and be located at 9 side of servo motor and be mounted with frequency converter 22: the frequency converter 22 It is electrically connected with servo motor 9 and adjusts 9 revolving speed of servo motor, searched 1 lower wall surface of book pedestal and be mounted with non-slip mat 23: the non-slip mat 23 For increasing the frictional force of pedestal 1 Yu bottom surface, be mounted with backing plate 24 between the electric sliding rail 4 and loading plate 6: the backing plate 24 is used It drives end directly to contact with loading plate 6 in isolation electric sliding rail 4, is mounted between the loading plate 6 and a pair of connecting plate 7 Reinforcing rod 25: the reinforcing rod 25 is for being fixedly connected with loading plate 6 and connecting plate 7.
Under be classified as each component model and effect of this case:
Servo motor: using Shanghai day into the servo motor of Electric Applicance Co., Ltd's RJ090-E03520 type, servo motor is Refer to the engine for controlling mechanical organ operating in servo-system, is a kind of indirect speed change gear of subsidy motor.
Magnetic board: using the magnetic board of rich magnetic mechanical production, metal plate is had magnetic by the principle that magnetic board passes through electric magnetisation Power, for adsorbing workpiece.
Cylinder: using the cylinder of the model SC of sub- river production, cylinder guidance piston carries out straight reciprocating motion in cylinder Cylindrical metal parts.
Motor driver: using the S700 series of driver of Killmorgen servo-driver, driver is also known as " servo control Device processed ", " servo amplifier " are a kind of controllers for controlling servo motor, and effect acts on general similar to frequency converter Logical alternating current motor, belongs to a part of servo-system, is mainly used in high-precision positioning system.Generally by position, speed Degree and three kinds of modes of torque control servo motor, realize high-precision transmission system positioning, are currently drive technology High-end product.
By those skilled in the art, the power supply that electricity pieces all in this case are adapted to it is attached by conducting wire, and Suitable controller should be selected according to the actual situation, to meet demand for control, specific connection and control sequence should be referred to In following working principles, successive job order is completed to be electrically connected between each electricity piece, detailed connection means, is that this field is public Know technology, it is following mainly to introduce working principle and process, it is not explained to electrical control.
Embodiment: according to Figure of description 1-3 it is found that when in use, grinding machine being placed on pedestal 1 and is located at loading and unloading It adsorbs above clamping structure, in parts to be processed is put into material storing box 5 at this time one, the electric sliding in support plate 2 at this time Rail 4 starts, so that loading plate 6 is moved to a top in material storing box 5, starts cylinder 16 at this time, 16 telescopic end of cylinder pushes Upright bar 17 declines, and motor driver receives electric signal and passes to servo motor 9, so that servo motor 9 drives end to be rotated, Driving wheel 10 is rotated under the driving at driving end, so that driven wheel 14 rotates, and drives screw rod 13 in connecting plate 7 Bearing 12 act under rotated so that movable block 15 moves inward trend, support of the movable block 15 in L-type slide bar 11 Under and the guidance of sliding rail 8 under so that movable block 15 do inwardly clamp movement so that magnetic board 18 clamp processing part, Energization adsorbs part by magnetic, at this time withdraws 16 telescopic end of cylinder, so that processing part rises, electric sliding rail 4 is moved Moved end is moved to above grinding operations platform, and cylinder 16 stretches out again at this time is placed on 18 power supply of grinding machine fault block magnetic board for workpiece, Part prepares polishing on station, and 16 telescopic end of cylinder is withdrawn, and repeats principle in blanking, simultaneously by workpiece grabbing absorption Deposit box 5 is placed in another, electric sliding rail resets, and work finishes.
Preferably, further, fixing clip 19 is mounted between a pair of material storing box 5 and pedestal: should Fixing clip 19 is for fixing material storing box 5.
Preferably, further, two pairs of 2 both ends of support rod are respectively between pedestal 1 and support plate 3 Be mounted with dead ring 20: the dead ring 20 is for being fastenedly connected support rod 2.
Preferably, further, fixing seat 21 is mounted between servo motor 9 and loading plate 6: the fixing seat 21 for fixing servo motor 9.
Preferably, further, 6 lower wall surface of loading plate, and be located at 9 side of servo motor and be mounted with frequency converter 22: the frequency converter 22 and servo motor 9 are electrically connected and adjust 9 revolving speed of servo motor.
Preferably, further, 1 lower wall surface of pedestal is mounted with non-slip mat 23: the non-slip mat 23 is for increasing The frictional force of pedestal 1 and bottom surface.
Preferably, further, backing plate 24 is mounted between electric sliding rail 4 and loading plate 6: the backing plate 24 is used End is driven directly to contact with loading plate 6 in isolation electric sliding rail 4.
Preferably, further, reinforcing rod 25 is mounted between loading plate 6 and a pair of connecting plate 7: should Reinforcing rod 25 is for being fixedly connected with loading plate 6 and connecting plate 7.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element ".
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (9)

1. a kind of grinding machine automatic charging baiting structure, including the identical support rod (2) of pedestal (1), two pairs of structures, support plate (3), electric sliding rail (4) and the identical material storing box (5) of a pair of of structure, which is characterized in that two pairs of support rod (2) one end peaces It is placed on pedestal (1), the support plate (3) is placed on two pairs of support rod (2) other ends, support plate (3) lower wall Face, and be located between two pairs of support rods (2) and offer the first groove, the electric sliding rail (4) is flush-mounted in the first groove, And sliding end leaks out the first groove, the electric sliding rail (4) drives and is mounted with loading and unloading absorption grasping structures on end, described in a pair Material storing box (5) is placed on pedestal (1), and is located at absorption grasping structures two sides;
Grasping structures are adsorbed in the loading and unloading comprising: loading plate (6), the identical connecting plate (7) of a pair of of structure, a pair of of structure Identical sliding rail (8), servo motor (9), driving wheel (10), the identical L-type slide bar (11) of two pairs of structures, a pair of of structure are identical Bearing (12), the identical screw rod (13) of a pair of of structure, driven wheel (14), the identical movable block (15) of a pair of of structure, a pair of of structure Identical cylinder (16), the identical upright bar (17) of a pair of of structure and the identical magnetic board (18) of a pair of of structure;
The loading plate (6) is placed on electric sliding rail (4) driving end, and a pair of connecting plate (7) is placed in loading plate (6) two End, loading plate (6) lower wall surface offer identical second groove of a pair of of structure, and be located at a pair of connecting plate (7) it Between, for a pair of sliding rail (8) in a pair of second groove, the servo motor (9) is placed in loading plate (6) lower wall On face, and it is located between a pair of sliding rail (8), the driving wheel (10) is placed in servo motor (9) driving end, described in two pairs L-type slide bar (11) one end is placed on a pair of sliding rail (8), offers third groove on a pair of connecting plate (7), and one To the bearing (12) in third groove, a pair of screw rod (13) is connected to each other, and the hand of spiral on screw rod (13) On the contrary, simultaneously a pair of screw rod (13) other end is in a pair of bearing (12) inner ring, driven wheel (14) suit At a pair of screw rod (13) docking, and connection is engaged with driving wheel (10).
2. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that a pair of movable block (15) it is rotatably connected on a pair of screw rod (13) by threaded hole, two pairs of L-type slide bars (11) are placed in movable block (15) side On wall surface, a pair of cylinder (16) is placed on a pair of movable block (15) lower wall surface, a pair of upright bar (17) placement In a pair of cylinder (16) telescopic end, a pair of magnetic board (18) is placed on a pair of upright bar (17), and a pair of of institute It is opposite to state magnetic board (18).
3. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that a pair of material storing box (5) fixing clip (19) are mounted between pedestal: the fixing clip (19) is for fixing material storing box (5).
4. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that two pairs of support rods (2) both ends are mounted with dead ring (20) between pedestal (1) and support plate (3) respectively: the dead ring (20) is for the company of fastening Connect support rod (2).
5. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that the servo motor (9) be mounted between loading plate (6) fixing seat (21): the fixing seat (21) is for fixing servo motor (9).
6. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that the loading plate (6) Lower wall surface, and be located at servo motor (9) side and be mounted with frequency converter (22): the frequency converter (22) electrically connects with servo motor (9) It connects and adjusts servo motor (9) revolving speed.
7. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that under the pedestal (1) Wall surface is mounted with non-slip mat (23): the non-slip mat (23) is used to increase the frictional force of pedestal (1) and bottom surface.
8. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that the electric sliding rail (4) be mounted between loading plate (6) backing plate (24): the backing plate (24) is for being isolated electric sliding rail (4) driving end and loading plate (6) it directly contacts.
9. a kind of grinding machine automatic charging baiting structure according to claim 1, which is characterized in that the loading plate (6) Be mounted with reinforcing rod (25) between a pair of connecting plate (7): the reinforcing rod (25) is for being fixedly connected with loading plate (6) and connecting Fishplate bar (7).
CN201822229796.4U 2018-12-28 2018-12-28 A kind of grinding machine automatic charging baiting structure Active CN209350001U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822229796.4U CN209350001U (en) 2018-12-28 2018-12-28 A kind of grinding machine automatic charging baiting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822229796.4U CN209350001U (en) 2018-12-28 2018-12-28 A kind of grinding machine automatic charging baiting structure

Publications (1)

Publication Number Publication Date
CN209350001U true CN209350001U (en) 2019-09-06

Family

ID=67800981

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822229796.4U Active CN209350001U (en) 2018-12-28 2018-12-28 A kind of grinding machine automatic charging baiting structure

Country Status (1)

Country Link
CN (1) CN209350001U (en)

Similar Documents

Publication Publication Date Title
CN108080958A (en) A kind of burr remover of flange full-automatic drilling machine
CN211438913U (en) Manipulator for mounting automobile parts
CN108818526A (en) A kind of pump core, which automatically detects, uses manipulator
CN206105213U (en) Electric automatization's round piece welding machine
CN209664654U (en) A kind of robot welding workstation
CN209350001U (en) A kind of grinding machine automatic charging baiting structure
CN208744037U (en) H profile steel bracket welding system
CN212807598U (en) Torsion detection device for torsion spring
CN211029344U (en) Corrugated pipe polishing device
CN220030151U (en) Clamping device for machining automobile crankshaft
CN208705033U (en) A kind of pedal and parking brake are performance test bed
CN208880477U (en) A kind of automatic transposition apparatus of cross workpiece
CN213040115U (en) Equipment installation base for electromechanical engineering
CN209362903U (en) A kind of special shaped screw bolt production equipment
CN208841145U (en) A kind of electro-tricycle raw material rust removalling equipment
CN110064962A (en) Turbocharger clamping jaw
CN209207184U (en) A kind of clutch compressing disc Counterboring apparatus
CN209439818U (en) A kind of Milling Process stationary fixture
CN208628582U (en) A kind of inner wall of the pipe ring groove processing device
CN109176306A (en) A kind of automatic transposition apparatus and control method of cross workpiece
CN209598861U (en) Burr polishing device is used in a kind of processing of steel plate
CN219532485U (en) Bearing detection device
CN221676522U (en) Clamp for vertical machining center
CN209551557U (en) A kind of fixed fixture of five metalworkings
CN221270415U (en) CNC machining center part clamping and fixing device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant