CN217143149U - Finish machining part increases setpoint auxiliary fixtures - Google Patents

Finish machining part increases setpoint auxiliary fixtures Download PDF

Info

Publication number
CN217143149U
CN217143149U CN202220532903.4U CN202220532903U CN217143149U CN 217143149 U CN217143149 U CN 217143149U CN 202220532903 U CN202220532903 U CN 202220532903U CN 217143149 U CN217143149 U CN 217143149U
Authority
CN
China
Prior art keywords
driving motor
fixedly connected
auxiliary tool
electric telescopic
finish
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
CN202220532903.4U
Other languages
Chinese (zh)
Inventor
王炳辉
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 Hangyue Technology Co ltd
Original Assignee
Guizhou Hangyue 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 Guizhou Hangyue Technology Co ltd filed Critical Guizhou Hangyue Technology Co ltd
Priority to CN202220532903.4U priority Critical patent/CN217143149U/en
Application granted granted Critical
Publication of CN217143149U publication Critical patent/CN217143149U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Turning (AREA)

Abstract

The utility model relates to a part finish machining technical field discloses a finish machining part increases setpoint auxiliary fixtures, including the lathe main part, lathe main part upside is provided with the material loading machine, lathe main part right side lower extreme inboard is provided with the hot spray gun structure, lathe main part inboard is provided with cantilever type three-dimensional measuring machine and controller, the lathe main part is connected with backup pad and bottom suspension fagging through driving motor two, axis of rotation one and mounting disc, it is connected with the top board through ball bearing, electric telescopic handle two to go up the backup pad, the bottom suspension fagging is connected with the bottom suspension fagging through driving motor three and axis of rotation two, the lathe main part is connected with drilling milling head and spouts the material blanking machine through spout, slider, electric telescopic handle and mounting panel. The utility model discloses in, this frock can increase the machine part setpoint through setting up cantilever type three-coordinate measuring machine, spouting material blanking machine, drilling cutter head and clamp plate clamping structure.

Description

Finish machining part increases setpoint auxiliary fixtures
Technical Field
The utility model relates to a part finish machining technical field especially relates to a finish machining part increases setpoint auxiliary fixtures.
Background
Finish machining generally refers to machining of a mechanical part in order to achieve a high precision and surface quality of a workpiece in machining, and belongs to a term of machining technology, and generally includes three types, namely rough machining, medium machining and finish machining.
The part often needs to carry out accurate location through the outside setpoint of part when carrying out the finish machining to improve the finish machining position precision of part, improve part finish machining efficiency, but current part often does not have the setpoint to carry out accurate location when carrying out the finish machining, can not carry out the accurate processing of part through the setpoint, mechanical finish machining efficiency is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the finish machining part that proposes increases the setpoint auxiliary fixtures.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an auxiliary tool for increasing positioning points of finish-machined parts comprises a lathe body, wherein a feeding machine is arranged at the right rear end of the upper side of the lathe body, a discharging cavity is arranged in the feeding machine, the inner side of the right lower end of the lathe body is connected with a hot spray gun structure through a hot melting pipe, a cantilever type three-coordinate measuring machine is arranged at the lower part of the right end of the rear side of the inner side of the lathe body, a controller is arranged at the lower side of the left front end of the inner side of the lathe body, a driving motor II is fixedly connected to the middle part of the left side of the lathe body, a driving shaft I is fixedly connected to the driving end of the right side of the driving motor II, the other end of the driving shaft I is fixedly connected to the middle part of the left side of a mounting disc, an upper supporting plate and a lower supporting plate are respectively and fixedly connected to the upper end and the lower end of the right side of the mounting disc, the inner side of the ball bearing is fixedly connected to the outer side of the upper end of an electric telescopic rod II, the lower end of the electric telescopic rod II is fixedly connected with the middle part of the upper side of the upper pressure plate, the lower side of the right end of the lower support plate is fixedly connected with a driving motor III, the driving end of the upper side of the driving motor III is fixedly connected with a second rotating shaft, the upper side of the second rotating shaft is fixedly connected with the middle part of the lower side of the lower pressing plate, a chute is arranged inside the right part of the upper side of the inner side of the lathe body, a first driving motor is arranged inside the right part of the upper front end of the lathe body, a ball screw is fixedly connected with the driving end at the rear side of the driving motor, a sliding block is connected with the inner side of the upper end of the sliding chute in a sliding way, the lower side of the sliding block is fixedly connected with the upper end of an electric telescopic rod, the lower end of the electric telescopic rod is fixedly connected with the middle part of the upper side of the mounting plate, the mounting panel downside front and back two parts do not are provided with the drilling cutter head and spout the material blanking machine, spout the inside material pump that spouts that is provided with of material blanking machine upper end.
As a further description of the above technical solution:
the discharging cavity and the material spraying pump are connected with each other through a connecting pipe.
As a further description of the above technical solution:
one rotating shaft is rotatably connected to the inner portion of the middle portion of the left side of the lathe body, and the outer side of the lower end of the second rotating shaft is rotatably connected to the inner portion of the right end of the lower supporting plate.
As a further description of the above technical solution:
the lower pressing plate and the upper pressing plate are located on the same longitudinal axis, and the section of the sliding groove is a T-shaped empty groove.
As a further description of the above technical solution:
the inside setting of slider is in the ball screw nut end outside, the ball screw rear end rotates to be connected inside lathe main part rear upper end right part.
As a further description of the above technical solution:
and the outer side of the electric telescopic rod is connected to the inner side of the lower part of the sliding chute in a sliding manner.
As a further description of the above technical solution:
the rear side of the driving motor is communicated with the front side of the upper end of the sliding groove.
As a further description of the above technical solution:
the controller is electrically connected with a cantilever type three-coordinate measuring machine, a material spraying pump, a drilling and milling head, a thermal spray gun structure, a first electric telescopic rod, a second electric telescopic rod, a first driving motor, a second driving motor and a third driving motor.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, this finish machining part increases setpoint auxiliary fixtures through set up cantilever type three-dimensional measuring machine inside the lathe main part, spout the material blanking machine, drilling cutter head and clamp plate clamping structure, can utilize clamp plate clamping structure centre gripping to treat the finish machining part, use cantilever type three-dimensional measuring machine to treat the location of finish machining part and acquire and carry out the centre gripping adjustment that clamp plate clamping structure arrived, recycle drilling cutter head and treat the surface punching processing of finish machining part, later use to spout the special pigment of surface hole packing after the material blanking machine is handled the drilling cutter head, the increase of mechanical parts setpoint is carried out, the structure is clear, can improve the finish machining precision of part greatly, high efficiency is practical.
2. The utility model discloses in, this finish machining part increases setpoint auxiliary fixtures still sets up two driving motor inside clamp plate clamping structure, because driving motor connects and rotates the axle head, conveniently treats the multi-direction centre gripping of finish machining part and rotates to can rotate the centre gripping and treat that the finish machining part carries out multi-angle multi-position and punches the filling processing, conveniently treat the arbitrary surface increase setpoint of finish machining part, simple structure is effectively convenient, has improved the increase setpoint efficiency of this frock greatly.
Drawings
Fig. 1 is a first perspective view of an auxiliary tool for adding positioning points to a finish-machined part according to the present invention;
fig. 2 is a second perspective view of the auxiliary tool for adding positioning points to the finish-machined part provided by the utility model;
fig. 3 is a front sectional view of the auxiliary tool for adding positioning points to a finish-machined part provided by the utility model;
fig. 4 is the utility model provides a finish machining part increases side cut view of setpoint auxiliary fixtures.
Illustration of the drawings:
1. a lathe body; 2. a controller; 3. a cantilever type three-coordinate measuring machine; 4. a feeding machine; 5. a discharge cavity; 6. a material spraying and blanking machine; 7. a material spraying pump; 8. a connecting pipe; 9. drilling and milling a head; 10. a thermal spray gun structure; 11. mounting a plate; 12. a chute; 13. a first electric telescopic rod; 14. a second electric telescopic rod; 15. a ball screw; 16. a slider; 17. driving a motor I; 18. a second driving motor; 19. driving a motor III; 20. rotating a first shaft; 21. a second rotating shaft; 22. an upper support plate; 23. a lower support plate; 24. mounting a disc; 25. a ball bearing; 26. an upper pressure plate; 27. and (5) pressing the plate downwards.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides an embodiment: an auxiliary tool for increasing positioning points of finish-machined parts comprises a lathe body 1, wherein a feeding machine 4 is arranged at the right rear end of the upper side of the lathe body 1 and used for feeding special filling pigment, a discharging cavity 5 is arranged in the feeding machine 4, the inner side of the right lower end of the lathe body 1 is connected with a hot spray gun structure 10 through a hot melting pipe and used for hot drying treatment of the filling pigment after the positioning points are added, a cantilever type three-coordinate measuring machine 3 is arranged at the lower part of the right end of the inner side of the lathe body 1 and used for measuring three-dimensional coordinates for clamping parts to be finish-machined, and is used for assisting the parts to be finish-machined to perform three-dimensional posture adjustment on the parts to be finish-machined, the auxiliary tool comprises a controller 2 arranged at the lower side of the left front end of the inner side of the lathe body 1 and used for controlling a song electronic element structure of the tool, a driving motor II 18 is fixedly connected to the middle part of the left side of the lathe body 1, and a driving shaft I20 is fixedly connected to the driving end of the driving motor II 18, the other end of the first rotating shaft 20 is fixedly connected to the middle of the left side of the mounting disc 24, the upper end and the lower end of the right side of the mounting disc 24 are fixedly connected with an upper supporting plate 22 and a lower supporting plate 23 respectively, the lower end of the right side of the upper supporting plate 22 is fixedly connected to the outer side of the outer ring end of a ball bearing 25 and is used for reducing the rotating friction force of the second electric telescopic rod 14 on the lower side of the upper supporting plate 22, the inner side of the inner ring end of the ball bearing 25 is fixedly connected to the outer side of the upper end of the second electric telescopic rod 14, the lower end of the second electric telescopic rod 14 is fixedly connected to the middle of the upper side of the upper pressing plate 26, the lower end of the lower supporting plate 23 is fixedly connected with a third driving motor 19, the upper side of the third driving motor 19 is fixedly connected with a second rotating shaft 21, the upper side of the second rotating shaft 21 is fixedly connected to the middle of the lower pressing plate 27, the second driving motor 18, the first rotating shaft 20, the mounting disc 24, the upper supporting plate 22, the lower supporting plate 23, the ball bearing 25, the second electric telescopic rod 14, The upper pressing plate 26, the driving motor III 19, the rotating shaft II 21 and the lower pressing plate 27 form a pressing plate clamping structure, a sliding groove 12 is formed in the right portion of the upper side of the inner side of the lathe body 1, a driving motor I17 is arranged in the right portion of the upper front end of the lathe body 1, a ball screw 15 is fixedly connected to the driving end of the rear side of the driving motor I17, a sliding block 16 is slidably connected to the inner side of the upper end of the sliding groove 12, the lower side of the sliding block 16 is fixedly connected to the upper end of a first electric telescopic rod 13, the lower end of the first electric telescopic rod 13 is fixedly connected to the middle portion of the upper side of the mounting plate 11, a drilling and milling head 9 and a spraying and blanking machine 6 are respectively arranged on the front portion and the rear portion of the lower side of the mounting plate 11, a spraying pump 7 is arranged in the upper end of the spraying and blanking machine 6, the driving motor I17, the ball screw 15, the sliding block 16, the sliding groove 12, the first electric telescopic rod 13 and the mounting plate 11 form a lifting and moving structure for controlling the lifting and moving of the mounting plate 11, the drilling milling head 9 is used for drilling processing of mechanical parts, and the material spraying and blanking machine 6 is used for filler spraying processing of surface drilling of the mechanical parts.
The discharging cavity 5 and the material spraying pump 7 are connected with each other through a connecting pipe 8, a first rotating shaft 20 is rotatably connected inside the middle part of the left side of the lathe main body 1, the outer side of the lower end of a second rotating shaft 21 is rotatably connected inside the right end of a lower support plate 23, a lower support plate 27 and an upper support plate 26 are positioned on the same longitudinal axis, two driving motors are arranged inside a clamping structure of the pressing plates, the driving motors are connected at the rotating shaft ends, multi-direction clamping rotation of a part to be finely machined can be facilitated, so that the part to be finely machined can be rotatably clamped to carry out multi-angle multi-position punching and filling processing, positioning points can be conveniently added on any surface of the part to be finely machined, the structure is simple, effective and convenient, the positioning point increasing efficiency of the tool is greatly improved, the section of the sliding groove 12 is a T-shaped empty groove, the inside of the sliding block 16 is arranged outside the nut end of the ball screw 15, the rear end of the ball screw 15 is rotatably connected inside the right part of the rear upper end of the lathe main body 1, the outer side of an electric telescopic rod I13 is connected to the inner side of the lower part of a sliding chute 12 in a sliding mode, the rear side of a driving motor I17 is communicated with the front side of the upper end of the sliding chute 12, a cantilever type three-coordinate measuring machine 3, a material spraying pump 7, a drilling milling head 9, a thermal spray gun structure 10, the electric telescopic rod I13, an electric telescopic rod II 14, the driving motor I17, a driving motor II 18 and a driving motor III 19 are electrically connected with a controller 2, the cantilever type three-coordinate measuring machine 3, a material spraying blanking machine 6, the drilling milling head 9 and a pressing plate clamping structure are arranged in a lathe main body 1, a part to be finely machined can be clamped by the pressing plate clamping structure, the cantilever type three-coordinate measuring machine 3 is used for positioning acquisition of the part to be finely machined and clamping adjustment of the pressing plate clamping structure, the drilling milling head 9 is used for surface punching of the part to be finely machined, and then the special pigment is filled in a surface hole processed by the material spraying blanking machine 6 after the drilling milling head 9, the increase of mechanical part setpoint is carried out, and the structure is clear, can improve the finish machining's of part precision greatly.
The working principle is as follows: the auxiliary tool for adding positioning points to the finish machining part can utilize the clamping plate clamping structure to clamp the part to be finish machined by arranging the cantilever type three-coordinate measuring machine 3, the spraying blanking machine 6, the drilling milling head 9 and the clamping plate clamping structure in the lathe body 1, utilize the cantilever type three-coordinate measuring machine 3 to carry out positioning acquisition of the part to be finish machined and carry out clamping adjustment of the clamping plate clamping structure, then utilize the drilling milling head 9 to carry out surface punching treatment on the part to be finish machined, then use the spraying blanking machine 6 to fill special pigment into surface holes treated by the drilling milling head 9, increase the positioning points of mechanical parts, has clear structure, can greatly improve the precision of finish machining of the part, is efficient and practical, and is also provided with two driving motors in the clamping plate clamping structure, because the driving motors are connected with the rotating shaft ends, the multi-direction centre gripping of finish machining part is conveniently treated and is rotated to can rotate the centre gripping and treat that finish machining part carries out multi-angle multi-position and punch the filling and handle, conveniently increase the setpoint on treating the arbitrary surface of finish machining part, simple structure is effective convenient, has improved the increase setpoint efficiency of this frock greatly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (8)

1. The utility model provides a finish machining part increases setpoint auxiliary fixtures, includes lathe main part (1), its characterized in that: the lathe is characterized in that a feeding machine (4) is arranged at the right rear end of the upper side of a lathe body (1), a discharging cavity (5) is arranged inside the feeding machine (4), the inner side of the right lower end of the lathe body (1) is connected with a hot spray gun structure (10) through a hot melting pipe, a cantilever type three-coordinate measuring machine (3) is arranged at the lower part of the right end of the inner side of the lathe body (1), a controller (2) is arranged at the lower side of the left front end of the inner side of the lathe body (1), a driving motor II (18) is fixedly connected to the middle part of the left side of the lathe body (1), a rotating shaft I (20) is fixedly connected to the driving end of the right side of the driving motor II (18), the other end of the rotating shaft I (20) is fixedly connected to the middle part of the left side of a mounting disc (24), an upper supporting plate (22) and a lower supporting plate (23) are fixedly connected to the upper end and the lower end of the right side of the mounting disc (24) respectively, the inner side of the lower end of the right end of the upper supporting plate (22) is fixedly connected to the outer side of the outer ring end of the ball bearing (25), the inner side of the inner ring end of the ball bearing (25) is fixedly connected to the outer side of the upper end of the second electric telescopic rod (14), the lower end of the second electric telescopic rod (14) is fixedly connected to the middle of the upper side of the upper pressing plate (26), the lower side of the right end of the lower supporting plate (23) is fixedly connected with a third driving motor (19), the driving end of the upper side of the third driving motor (19) is fixedly connected with a second rotating shaft (21), the upper side of the second rotating shaft (21) is fixedly connected to the middle of the lower side of the lower pressing plate (27), a sliding groove (12) is formed in the right part of the inner side of the lathe body (1), a first driving motor (17) is arranged in the right part of the upper front end of the lathe body (1), and a ball screw (15) is fixedly connected to the driving end of the first driving motor (17) at the rear side, spout (12) upper end inboard sliding connection has slider (16), slider (16) downside fixed connection is in electric telescopic handle (13) upper end, electric telescopic handle (13) lower extreme fixed connection son is at mounting panel (11) upside middle part, two parts do not are provided with drilling cutter head (9) and spout material blanking machine (6) around mounting panel (11) downside, spout material blanking machine (6) upper end inside and be provided with spout material pump (7).
2. The auxiliary tool for adding the positioning point to the finish-machined part according to claim 1, wherein the auxiliary tool comprises: the discharging cavity (5) and the material spraying pump (7) are connected with each other through a connecting pipe (8).
3. The auxiliary tool for adding the positioning point to the finish-machined part according to claim 1, wherein the auxiliary tool comprises: the first rotating shaft (20) is rotatably connected to the inner portion of the middle portion of the left side of the lathe body (1), and the outer side of the lower end of the second rotating shaft (21) is rotatably connected to the inner portion of the right end of the lower supporting plate (23).
4. The auxiliary tool for adding the positioning point to the finish-machined part according to claim 1, wherein the auxiliary tool comprises: the lower pressing plate (27) and the upper pressing plate (26) are located on the same longitudinal axis, and the cross section of the sliding groove (12) is a T-shaped empty groove.
5. The auxiliary tool for adding the positioning point to the finish-machined part according to claim 1, wherein the auxiliary tool comprises: the inside of the sliding block (16) is arranged on the outer side of the nut end of the ball screw (15), and the rear end of the ball screw (15) is rotatably connected to the inside of the right part of the rear upper end of the lathe body (1).
6. The auxiliary tool for adding the positioning point to the finish-machined part according to claim 1, wherein the auxiliary tool comprises: the outer side of the electric telescopic rod I (13) is connected to the inner side of the lower part of the sliding groove (12) in a sliding mode.
7. The auxiliary tool for adding the positioning point to the finish-machined part according to claim 1, wherein the auxiliary tool comprises: the rear side of the first driving motor (17) is communicated with the front side of the upper end of the sliding groove (12).
8. The auxiliary tool for adding positioning points to finished parts according to claim 1, wherein the auxiliary tool comprises: the controller (2) is electrically connected with a cantilever type three-coordinate measuring machine (3), a material spraying pump (7), a drilling and milling head (9), a thermal spray gun structure (10), a first electric telescopic rod (13), a second electric telescopic rod (14), a first driving motor (17), a second driving motor (18) and a third driving motor (19).
CN202220532903.4U 2022-03-11 2022-03-11 Finish machining part increases setpoint auxiliary fixtures Active CN217143149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220532903.4U CN217143149U (en) 2022-03-11 2022-03-11 Finish machining part increases setpoint auxiliary fixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220532903.4U CN217143149U (en) 2022-03-11 2022-03-11 Finish machining part increases setpoint auxiliary fixtures

Publications (1)

Publication Number Publication Date
CN217143149U true CN217143149U (en) 2022-08-09

Family

ID=82692793

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220532903.4U Active CN217143149U (en) 2022-03-11 2022-03-11 Finish machining part increases setpoint auxiliary fixtures

Country Status (1)

Country Link
CN (1) CN217143149U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115070084A (en) * 2022-08-16 2022-09-20 河北天王自行车科技有限公司 Child bicycle rim drilling equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115070084A (en) * 2022-08-16 2022-09-20 河北天王自行车科技有限公司 Child bicycle rim drilling equipment
CN115070084B (en) * 2022-08-16 2022-11-08 河北天王自行车科技有限公司 Child bicycle rim drilling equipment

Similar Documents

Publication Publication Date Title
CN112974926B (en) Combined mechanical milling device and processing method thereof
CN217143149U (en) Finish machining part increases setpoint auxiliary fixtures
CN207953246U (en) A kind of portable auto parts and components frock clamp
CN211277367U (en) Drilling and polishing two-in-one processing machine
CN215033734U (en) Chuck with adjustable clamping length for machine tool
CN210588798U (en) Robot is polished with fixing device who is convenient for trade piece
CN113183027A (en) Robot polishing system and polishing clamp thereof
CN209850356U (en) Five engravers based on hot sword
CN210997459U (en) Numerical control lathe with grinding function
CN217453414U (en) Multi-station bar grinder
CN217254422U (en) Numerical control gantry drilling and tapping integrated equipment
CN213998703U (en) Feeding and discharging device of coordinate manipulator for numerically controlled milling machine
CN215201899U (en) Positioning device for mechanical platform
CN206185475U (en) Compound lathe of turnning and milling with tool magazine device
CN213380441U (en) Part clamping device for milling and grinding
CN213764111U (en) Metal mobile phone hole turning device
CN212043614U (en) Boring machine shaft type tool clamp
CN114850961A (en) Indexable intermittent machining jig with cooling function and using method thereof
CN210588098U (en) Special numerical control boring and drilling integrated machine high-speed drilling machine
CN210677228U (en) Oil groove device for electric spark machining
CN211249385U (en) Efficient cylindrical grinding machine for machining
CN218964054U (en) Positioning device for placing blanking workpiece on machine tool
CN216882706U (en) Special fixture for machining spindle box
CN216177363U (en) Integrated high-precision electric spark forming machine tool
CN216325296U (en) Engine water chamber drilling device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant