CN106670595B - Five-axis numerical control machine tool machining device for machining screw tap threads and using method - Google Patents

Five-axis numerical control machine tool machining device for machining screw tap threads and using method Download PDF

Info

Publication number
CN106670595B
CN106670595B CN201710029882.8A CN201710029882A CN106670595B CN 106670595 B CN106670595 B CN 106670595B CN 201710029882 A CN201710029882 A CN 201710029882A CN 106670595 B CN106670595 B CN 106670595B
Authority
CN
China
Prior art keywords
axis
grinding wheel
wheel spindle
spindle
resin grinding
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
CN201710029882.8A
Other languages
Chinese (zh)
Other versions
CN106670595A (en
Inventor
黄涛
陈文峰
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.)
Guizhou Taihe Superhard Tools Co ltd
Original Assignee
Guizhou Taihe Superhard Tools 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 Guizhou Taihe Superhard Tools Co ltd filed Critical Guizhou Taihe Superhard Tools Co ltd
Priority to CN201710029882.8A priority Critical patent/CN106670595B/en
Publication of CN106670595A publication Critical patent/CN106670595A/en
Application granted granted Critical
Publication of CN106670595B publication Critical patent/CN106670595B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00Thread cutting; Automatic machines specially designed therefor
    • B23G1/44Equipment or accessories specially designed for machines or devices for thread cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2210/00Details of threads produced
    • B23G2210/08External threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The invention discloses a five-axis numerical control machine tool machining device for machining screw tap threads and a using method thereof, which comprises a machine table, a first power mechanism and a second power mechanism, the side surface of the machine table is provided with heat dissipation holes, the table surface of the machine table is provided with an X-axis mechanism, the side surface of the X-axis mechanism is provided with a convex platform, an A-axis mechanism, a first power mechanism and a second power mechanism are arranged obliquely above the X-axis mechanism, a cutter is arranged below the first power mechanism, a fixed block is arranged on the side surface of the first power mechanism, a connecting spring is arranged below the fixed block, a linkage device is arranged on the side surface of the left side of the second power mechanism, a resin grinding wheel spindle and a diamond roller spindle are arranged on the side surface of the other end of the second power mechanism, the side of the resin grinding wheel spindle is provided with the baffle, and the device has the characteristics of stable and reliable production, high processing efficiency, product quality meeting design requirements, low price and the like.

Description

Five-axis numerical control machine tool machining device for machining screw tap threads and using method
Technical Field
The invention relates to the technical field of production and grinding of screw tap thread machining, in particular to a five-axis numerical control machine tool machining device for screw tap thread machining and a using method.
Background
The numerical control device is a special electronic computer which controls the machine tool and completes the automatic processing of parts. It receives the information of digitalized part pattern and technological requirements, and makes interpolation operation according to a certain mathematical model, and uses the operation result to make speed and position control of every movement coordinate of machine tool in real time so as to implement the processing of part.
The numerical control device is the main centre of the numerical control machine tool, in the general numerical control machine tool, it is generally composed of input device, memory, controller, arithmetic unit and output device, the numerical control device receives the information of input medium, and identifies, stores and operates its code, and outputs correspondent instruction pulse to drive servo system so as to control the action of machine tool.
At present, in the aspect of machining screw tap threads, machine tools of some manufacturers are still at a low-end level, the machine tools are generally manual machine tools or semi-automatic machine tools, and diamond pens are generally adopted for trimming in a grinding wheel trimming mode, and are easy to fall off and lose, so that the conditions of unstable size and easy deformation of teeth are easy to occur in the machining production of the screw tap threads; in the machining process of the screw tap threads, two procedures of thread grinding and excircle shoveling are separately executed, so that the machining process has the major defects in the aspects of production links, machining efficiency, product quality, design standards, manufacturing cost and the like, and a certain improvement needs to be carried out on the structure of a machine tool.
Disclosure of Invention
The invention aims to provide a five-axis numerical control machine tool machining device for machining a screw tap thread and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a five-axis numerical control machine tool machining device for screw tap thread machining, includes board, first power unit, second power unit, the left side of board is equipped with the louvre, and the louvre sets up in the centre of board below and is inclined to the lower side, the another side of board is equipped with the protrusion platform, and the side at the board is fixed to the protrusion platform, and the protrusion platform is less than the upper surface of board, the top of protrusion platform is equipped with Y axle mechanism, one side of Y axle mechanism is equipped with A axle mechanism, processingequipment's left surface is equipped with the baffle, and the baffle passes through the upper surface of welding snap-on at the board, the inside of baffle is equipped with resin grinding wheel main shaft, the top of resin grinding wheel main shaft is equipped with the diamond grinding wheel main shaft, and resin grinding wheel.
Preferably, one side of the resin grinding wheel spindle and one side of the diamond roller spindle are provided with a second power mechanism, and a bearing on the second power mechanism is connected with the resin grinding wheel spindle and the diamond grinding wheel spindle.
Preferably, the first power mechanism is arranged on the side face of the left side of the second power mechanism, a cutter is arranged below the first power mechanism, the cutter and the first power mechanism are integrated, and the side face of the first power mechanism is in contact with the second power mechanism.
Preferably, a B-axis mechanism is arranged above the second power mechanism, a Z-axis mechanism is arranged above the B-axis mechanism, the B-axis mechanism and the Z-axis mechanism are stacked to form a cross sliding table, and the B-axis mechanism and the Z-axis mechanism are stacked to form a cross sliding table which is arranged above the resin grinding wheel main shaft.
Preferably, the resin grinding wheel spindle and the diamond roller spindle are circular, and fixing screw holes are formed in the peripheries of the resin grinding wheel spindle and the diamond roller spindle close to the middle.
Preferably, the protruding platform is 20mm-22mm lower than the upper surface of the machine table.
The use method of the five-axis numerical control machine tool machining device for machining the screw tap threads comprises the following steps:
A. the X-axis mechanism and the Y-axis mechanism are vertically arranged in the same horizontal plane, and the A-axis mechanism is an indexing rotating shaft and is arranged on the X-axis mechanism;
B. the resin grinding wheel spindle is arranged on the Y-axis mechanism and swings a helix angle with a certain angle, and the X-axis mechanism, the Y-axis mechanism and the A-axis mechanism are operated to grind the screw threads of the screw tap simultaneously;
C. the B-axis mechanism and the Z-axis mechanism are superposed to form a cross sliding table, the cross sliding table is arranged above the resin grinding wheel main shaft and is fixed above the second power mechanism through a fixing piece;
D. the second power mechanism provides power for the resin grinding wheel spindle and the diamond roller spindle which are opposite, and the resin grinding wheel spindle and the diamond roller spindle drive the grinding wheel on the resin grinding wheel spindle and the diamond roller spindle to rotate;
E. the outer side of the grinding wheel is provided with a baffle which is directly welded on the upper surface of the machine table.
Compared with the prior art, the invention has the beneficial effects that:
the machining unit is used for machining the screw tap threads through the A-axis mechanism, the X-axis mechanism, the Y-axis mechanism and the corresponding auxiliary devices, the trimming mechanism consisting of the B-axis mechanism and the Z-axis mechanism can drive the diamond roller to trim the grinding wheel into a required shape in an interpolation mode, online trimming can be performed, the excircle is synchronously shoveled, one step of working procedure is saved in the machining process of the screw tap threads, and the machining device has the characteristics of stable and reliable production, high machining efficiency, product quality meeting design requirements, low price and the like.
Drawings
FIG. 1 is a schematic view of a processing apparatus of the present invention;
FIG. 2 is a left side view of the processing apparatus of the present invention;
FIG. 3 is a rear view of the processing device of the present invention;
figure 4 is a cut-away view of a dressed wheel of the present invention.
In the figure: 1. an X-axis mechanism; 2. a Y-axis mechanism; 3. an A-axis mechanism; 4. a B-axis mechanism; 5. a Z-axis mechanism; 6. a resin grinding wheel spindle; 7. a diamond roller spindle; 8. heat dissipation holes; 9. a machine platform; 10. a fixed block; 11. a cutter; 12. a linkage device; 13. a baffle plate; 14. a first power mechanism; 15. a second power mechanism; 16. a connecting spring; 17. a raised platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a five-axis numerical control machine tool machining device for screw tap thread machining comprises a machine table 9, a first power mechanism 14 and a second power mechanism 15, wherein heat dissipation holes 8 are formed in the left side surface of the machine table 9, the heat dissipation holes 8 are formed in the lower portion of the machine table 9 in the middle, a protruding platform 17 is arranged on the other side surface of the machine table 9, the protruding platform 17 is fixed to the side surface of the machine table 9, the protruding platform 17 is lower than the upper surface of the machine table 9, a Y-axis mechanism 2 is arranged above the protruding platform 17, an A-axis mechanism 3 is arranged on one side of the Y-axis mechanism 2, a baffle 13 is arranged on the left side surface of the machining device, the resin grinding wheel spindle 6 is arranged inside the baffle 13, the diamond roller spindle 7 is arranged above the resin grinding wheel spindle 16, and the resin grinding wheel spindle 6 and the diamond roller spindle 7 are fixed through screws around the axis.
And a second power mechanism 15 is arranged on one side of the resin grinding wheel main shaft 6 and one side of the diamond roller main shaft 7, and a bearing on the second power mechanism is connected with the resin grinding wheel main shaft 6 and the diamond grinding wheel main shaft 7.
The first power mechanism 14 is arranged on the left side face of the second power mechanism 15, the cutter 11 is arranged below the first power mechanism 14, the cutter 11 and the first power mechanism 14 are of an integral structure, and the side face of the first power mechanism 14 is in contact with the second power mechanism 15.
A B-axis mechanism 4 is arranged above the second power mechanism 15, a Z-axis mechanism 5 is arranged above the B-axis mechanism 4, the B-axis mechanism 4 and the Z-axis mechanism 5 are overlapped to form a cross sliding table, and the B-axis mechanism 4 and the Z-axis mechanism 5 are overlapped to form a cross sliding table which is arranged above the resin grinding wheel main shaft 6.
The resin grinding wheel spindle 6 and the diamond roller spindle 7 are circular, the peripheries of the resin grinding wheel spindle 6 and the diamond roller spindle 7 close to the middle are provided with fixed screw holes, and the protruded platform 17 is 20mm-22mm lower than the upper surface of the machine table 9.
The X-axis mechanism 1 and the Y-axis mechanism 2 are vertically arranged in the same horizontal plane, the A-axis mechanism 3 is an indexing rotating shaft and is arranged on the X-axis mechanism 1, the resin grinding wheel spindle 6 is arranged on the Y-axis mechanism 2 and can swing a helix angle with a certain angle, and the X-axis mechanism 1, the Y-axis mechanism 2 and the A-axis mechanism 3 are used for finishing grinding of screw threads of a screw tap; the B-axis mechanism 4 and the Z-axis mechanism 5 are superposed to form a cross sliding table which is used as a mechanism for finishing a grinding wheel and is arranged above the grinding wheel shaft, and the diamond roller spindle 7 moves out of corresponding interpolation actions above the grinding wheel along with the linkage of the B-axis mechanism 4 and the Z-axis mechanism 5.
A use method of a five-axis numerical control machine tool machining device for machining screw tap threads is characterized by comprising the following steps: the method comprises the following steps:
A. the X-axis mechanism 1 and the Y-axis mechanism 2 are vertically arranged in the same horizontal plane, and the A-axis mechanism 3 is an indexing rotating shaft and is arranged on the X-axis mechanism 1;
B. the resin grinding wheel spindle 6 is arranged on the Y-axis mechanism 2 and swings a helix angle with a certain angle, the X-axis mechanism 1, the Y-axis mechanism 2 and the A-axis mechanism 3 run for screw tap thread grinding at the same time;
C. the B-axis mechanism 4 and the Z-axis mechanism 5 are superposed to form a cross sliding table, arranged above the resin grinding wheel spindle and fixed above the second power mechanism 15 through a fixing part;
D. the second power mechanism 15 provides power for the resin grinding wheel spindle 6 and the diamond roller spindle 7 which are opposite, and the resin grinding wheel spindle 6 and the diamond roller spindle 7 drive the grinding wheel on the upper surface to rotate;
E. a baffle 13 is arranged on the outer side of the grinding wheel, and the baffle 13 is directly welded on the upper surface of the machine table 9.
Compared with the prior art, the invention has the beneficial effects that:
the machining unit is used for machining the screw tap threads through the A-axis mechanism 3, the X-axis mechanism 1, the Y-axis mechanism 2 and the corresponding auxiliary devices, the trimming mechanism consisting of the B-axis mechanism 4 and the Z-axis mechanism 5 can carry the diamond roller to trim the grinding wheel into a required shape in an interpolation mode, online trimming can be performed, the excircle is synchronously shoveled, one step of working procedure is saved in the machining process of the screw tap threads, and the machining device has the characteristics of stable and reliable production, high machining efficiency, product quality meeting design requirements, low price and the like.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A five-axis numerical control machine tool processingequipment for screw tap screw thread processing, including board (9), X axle mechanism (1), first power unit (14), second power unit (15), its characterized in that: the left side surface of the machine table (9) is provided with heat dissipation holes (8), the heat dissipation holes (8) are arranged below the machine table (9) in the middle and are inclined downwards, a convex platform (17) is arranged on the other side surface of the machine table (9), the convex platform (17) is fixed on the side surface of the machine table (9), the convex platform (17) is lower than the upper surface of the machine table (9), a Y-axis mechanism (2) is arranged above the protruding platform (17), an A-axis mechanism (3) is arranged on one side of the Y-axis mechanism (2), a baffle (13) is arranged on the left side surface of the processing device, the baffle (13) is directly fixed on the upper surface of the machine table (9) by welding, a resin grinding wheel spindle (6) is arranged inside the baffle (13), a diamond roller wheel spindle (7) is arranged above the resin grinding wheel spindle (6), and the resin grinding wheel spindle (6) and the diamond roller wheel spindle (7) are fixed through screws around the axis;
the top of second power unit (15) is equipped with B axle mechanism (4), the top of B axle mechanism (4) is equipped with Z axle mechanism (5), a cross slip table is constituteed in B axle mechanism (4), the stack of Z axle mechanism (5), the top of resin grinding wheel main shaft (6) is arranged in to a cross slip table is constituteed in B axle mechanism (4), the stack of Z axle mechanism (5).
2. The five-axis numerical control machine tool machining device for tap thread machining according to claim 1, characterized in that: and a second power mechanism (15) is arranged on one side of the resin grinding wheel spindle (6) and one side of the diamond roller spindle (7), and a bearing on the second power mechanism is connected with the resin grinding wheel spindle (6) and the diamond grinding wheel spindle (7).
3. The five-axis numerical control machine tool machining device for tap thread machining according to claim 1, characterized in that: the side surface of the left side of the second power mechanism (15) is provided with a first power mechanism (14), a cutter (11) is arranged below the first power mechanism (14), the cutter (11) and the first power mechanism (14) are of an integrated structure, and the side surface of the first power mechanism (14) is in contact with the second power mechanism (15).
4. The five-axis numerical control machine tool machining device for tap thread machining according to claim 1, characterized in that: the resin grinding wheel spindle (6) and the diamond roller spindle (7) are round, and fixing screw holes are formed in the peripheries, close to the middle, of the resin grinding wheel spindle (6) and the diamond roller spindle (7).
5. The five-axis numerical control machine tool machining device for tap thread machining according to claim 1, characterized in that: the protruding platform (17) is 20mm-22mm lower than the upper surface of the machine table (9).
6. The use method of the five-axis numerical control machine tool machining device for tap thread machining according to claim 1 is realized, wherein the five-axis numerical control machine tool machining device comprises the following steps: the method comprises the following steps:
A. the X-axis mechanism (1) and the Y-axis mechanism (2) are vertically arranged in the same horizontal plane, and the A-axis mechanism (3) is an indexing rotating shaft and is arranged on the X-axis mechanism (1);
B. the resin grinding wheel spindle (6) is arranged on the Y-axis mechanism (2) and swings a helix angle with a certain angle, and the X-axis mechanism (1), the Y-axis mechanism (2) and the A-axis mechanism (3) are operated to grind the screw threads of the screw tap simultaneously;
C. the B-axis mechanism (4) and the Z-axis mechanism (5) are superposed to form a cross sliding table, the cross sliding table is arranged above the resin grinding wheel spindle and is fixed above the second power mechanism (15) through a fixing piece;
D. the second power mechanism (15) provides power for the opposite resin grinding wheel spindle (6) and the opposite diamond roller spindle (7), and the resin grinding wheel spindle (6) and the diamond roller spindle (7) drive the grinding wheel on the upper surface to rotate;
E. a baffle (13) is arranged on the outer side of the grinding wheel, and the baffle (13) is directly welded on the upper surface of the machine table (9).
CN201710029882.8A 2017-01-12 2017-01-12 Five-axis numerical control machine tool machining device for machining screw tap threads and using method Active CN106670595B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710029882.8A CN106670595B (en) 2017-01-12 2017-01-12 Five-axis numerical control machine tool machining device for machining screw tap threads and using method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710029882.8A CN106670595B (en) 2017-01-12 2017-01-12 Five-axis numerical control machine tool machining device for machining screw tap threads and using method

Publications (2)

Publication Number Publication Date
CN106670595A CN106670595A (en) 2017-05-17
CN106670595B true CN106670595B (en) 2020-07-03

Family

ID=58859053

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710029882.8A Active CN106670595B (en) 2017-01-12 2017-01-12 Five-axis numerical control machine tool machining device for machining screw tap threads and using method

Country Status (1)

Country Link
CN (1) CN106670595B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112108726B (en) * 2020-09-14 2021-12-07 四川川昊精工机械有限公司 Efficient thread machining method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201685166U (en) * 2010-03-19 2010-12-29 广州市敏嘉制造技术有限公司 Numerically-controlled composite grinding center
CN203526726U (en) * 2013-11-26 2014-04-09 上海拓璞数控科技有限公司 Numerical-control grinding machine with plan-envelope annulus worm and five-shaft linkage
CN204183410U (en) * 2014-10-23 2015-03-04 天津市汉创科技有限公司 Novel 5-shaft linkage numerical control lathe
CN104625893A (en) * 2015-03-10 2015-05-20 拉威尔(北京)科技有限公司 Five-axis linked grinding machine for machining of numerically-controlled tools
CN104923868A (en) * 2015-06-30 2015-09-23 林建国 Thread grinding mechanism
CN105798710A (en) * 2016-03-30 2016-07-27 广东特普丝精密工具有限公司 Numerical control extrusion screw tapping thread grinding machine
CN206578388U (en) * 2017-01-12 2017-10-24 贵州泰和超硬工具股份有限公司 The five-axle number control machine tool processing unit (plant) processed for screw-tap threaded

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2721295Y (en) * 2004-07-09 2005-08-31 王隆太 Digital controlled screw grinding machine
KR101183871B1 (en) * 2010-05-06 2012-09-19 주식회사 서울금속 Grinding Machine for External Screw

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201685166U (en) * 2010-03-19 2010-12-29 广州市敏嘉制造技术有限公司 Numerically-controlled composite grinding center
CN203526726U (en) * 2013-11-26 2014-04-09 上海拓璞数控科技有限公司 Numerical-control grinding machine with plan-envelope annulus worm and five-shaft linkage
CN204183410U (en) * 2014-10-23 2015-03-04 天津市汉创科技有限公司 Novel 5-shaft linkage numerical control lathe
CN104625893A (en) * 2015-03-10 2015-05-20 拉威尔(北京)科技有限公司 Five-axis linked grinding machine for machining of numerically-controlled tools
CN104923868A (en) * 2015-06-30 2015-09-23 林建国 Thread grinding mechanism
CN105798710A (en) * 2016-03-30 2016-07-27 广东特普丝精密工具有限公司 Numerical control extrusion screw tapping thread grinding machine
CN206578388U (en) * 2017-01-12 2017-10-24 贵州泰和超硬工具股份有限公司 The five-axle number control machine tool processing unit (plant) processed for screw-tap threaded

Also Published As

Publication number Publication date
CN106670595A (en) 2017-05-17

Similar Documents

Publication Publication Date Title
CN104384586A (en) Method for processing integral impeller by using four-axis numerical-control milling machine
CN103624350A (en) Blisk blade electrolytic finishing forming device and blisk blade machining forming method
CN202752787U (en) Precise five-axis double-station position changing machine
CN206382947U (en) A kind of carving and milling machine with dust-absorbing function
CN104526070B (en) Calibration method for multi-shaft linkage machining positions of toroidal worm
CN103273425A (en) CBN grinding wheel track finishing device
CN102081373B (en) Numerical control system for roll grinder and control method thereof
CN106670595B (en) Five-axis numerical control machine tool machining device for machining screw tap threads and using method
CN204414607U (en) Automatic-switching type 3D prints processing unit (plant)
CN203697824U (en) Four-axis cutting plotter special for gantry type tire mould
CN104786119A (en) Grinding tool used for machining glass cover plate
CN201768969U (en) Bevel gear top chamfering machine
CN204621747U (en) A kind of processed glass cover plate grinding tool
CN206578388U (en) The five-axle number control machine tool processing unit (plant) processed for screw-tap threaded
CN201500887U (en) Exchange device for automatic worktable
CN206662712U (en) For lengthening the four-shaft numerically controlled lathe of single-edge spiral milling cutter processing
CN203566251U (en) Cradle type rotating table and five-axis CNC machine tool with same
CN207888242U (en) A kind of numerically-controlled machine tool
CN208052005U (en) A kind of nonmetallic Five-axis NC Machining Center
CN206869557U (en) A kind of automatic numerical control machine tool
CN206263337U (en) A kind of practical cutting machine
CN204505013U (en) A kind of control system of polisher
CN202684701U (en) 2.5D cambered surface glass processing equipment
CN205147419U (en) Engraving and milling machine
CN106670815A (en) Four-axis numerically controlled machine tool for machining lengthened single-blade spiral cutter and using method

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