CN213163117U - Multi-angle numerical control cutter - Google Patents
Multi-angle numerical control cutter Download PDFInfo
- Publication number
- CN213163117U CN213163117U CN202021873218.5U CN202021873218U CN213163117U CN 213163117 U CN213163117 U CN 213163117U CN 202021873218 U CN202021873218 U CN 202021873218U CN 213163117 U CN213163117 U CN 213163117U
- Authority
- CN
- China
- Prior art keywords
- cutter
- cover plate
- circular
- circular cover
- groove
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
The utility model discloses a multi-angle numerical control cutter, including cutter main part, cutter arbor and edge of a knife, cutter main part's bottom is provided with circular base, and cutter main part's top is provided with circular apron, a plurality of positioning channel groove have all been seted up to circular base's upper surface and circular apron's lower surface, cutter main part's upper and lower both ends surface all is provided with a plurality of triangular pyramids, circular base's centre of a circle department sets up threaded hole, first blind hole has been seted up to circular apron's upper surface centre of a circle department, the inside threaded connection of screw hole has fastening bolt, and fastening bolt runs through cutter main part and circular apron. This multi-angle numerical control cutter presss from both sides tight cutter main part through setting up circular base and circular apron for people can be at the angle of great within range adjustment edge of a knife, cooperates positioning channel groove and triangular pyramid simultaneously, makes the edge of a knife can not take place the skew of angle when cutting the work piece, and stability is high, and the practicality is strong.
Description
Technical Field
The utility model relates to a numerical control cutter technical field especially relates to a multi-angle numerical control cutter.
Background
The numerical control cutter is a tool used for cutting in mechanical manufacturing, also called as a cutting tool, the generalized cutting tool comprises a cutter and a grinding tool, and the numerical control cutter comprises accessories such as a cutter bar, a cutter handle and the like besides a cutting blade.
The cutter in the current market can only determine the angle of the knife edge after the cutter is installed according to the groove body on the cutter bar, but cannot adjust the angle of the knife edge according to the actual condition, so that the application range of the numerical control cutter is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a multi-angle numerical control cutter has solved the cutter on the existing market and can only decide the angle of its installation back edge of a knife according to the cell body on the cutter arbor, and can't adjust the angle of the edge of a knife according to the circumstances of reality, leads to numerical control cutter's application range to receive the problem of restriction.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a multi-angle numerical control cutter comprises a cutter main body, a cutter bar and a cutter edge, wherein a circular base is arranged at the bottom of the cutter main body and used for placing the cutter main body, a circular cover plate is arranged at the top of the cutter main body and used for covering the cutter main body, the circular base is fixed on the cutter bar, a plurality of positioning clamping grooves are formed in the upper surface of the circular base and the lower surface of the circular cover plate, a plurality of triangular pyramids are arranged on the outer surfaces of the upper end and the lower end of the cutter main body, the positioning clamping grooves are matched with the triangular pyramids and used for preventing the cutter main body from rotating between the circular base and the circular cover plate, the triangular pyramids and the positioning clamping grooves are arranged in a matching manner, threaded holes are formed in the circle center of the circular base, and are matched with fastening bolts, the tool comprises a circular cover plate and is characterized in that a first blind hole is formed in the circle center of the upper surface of the circular cover plate and used for accommodating a bolt head of a fastening bolt, the fastening bolt is connected with the internal thread of the threaded hole and penetrates through a tool body and the circular cover plate, the bolt head of the fastening bolt is located inside the first blind hole, a limiting unit is arranged on the upper surface of the circular cover plate and assembled to limit the position of the fastening bolt, and a positioning portion is arranged on one side of the circular cover plate.
Adopt above-mentioned scheme, come to press from both sides tight cutter main part through setting up circular base and circular apron for people can be at the angle of great within range adjustment edge of a knife, cooperate positioning channel groove and triangular pyramid simultaneously, make the edge of a knife can not take place the skew of angle when cutting work piece, and stability is high, and the practicality is strong, and the installation of cutter main part is as follows: remove the cutter main part to between circular base and the circular cover board, then the angle of the edge of a knife is adjusted according to the demand of reality, directly place the cutter main part on circular base after the completion, the triangular pyramid that is located cutter main part bottom this moment will enter into and set up inside the positioning channel groove on circular base, then utilize fastening bolt and screw hole with circular cover board fixed mounting on circular base, it is fixed to the clamp of realization cutter main part, it is located the triangular pyramid at cutter main part top this moment and will enter into and set up inside the positioning channel groove on circular cover board, therefore, when the edge of a knife atress, whole cutter main part still can remain stable.
Preferably, a plurality of angle scale slots are formed in the upper surface of the circular cover plate, a reference slot is formed in the upper surface of the knife edge, and the angle scale slots are annularly distributed in the upper surface of the circular cover plate.
By adopting the scheme, the angle scale line slot and the reference line slot are arranged, so that people can determine the angle of the knife edge according to the angle of the angle scale line slot pointed by the reference line slot, and convenience is brought to the use of people.
Preferably, the limiting unit comprises a damping rotating shaft and a limiting plate, the limiting plate is movably mounted on the upper surface of the circular cover plate through the damping rotating shaft, a through hole is formed in the limiting plate, the through hole is convenient for people to use tools to penetrate through the limiting plate to screw the fastening bolt, and a clamping portion is arranged at one end of the limiting plate.
Adopt above-mentioned scheme, through setting up the damping pivot for the limiting plate can be located first blind hole directly over all the time, and then just can prevent that the condition that fastening bolt loses from taking place, and its concrete principle is as follows: when people need not become flexible fastening bolt, usable instrument passes the through-hole and directly twists fastening bolt, and at this moment, fastening bolt will withdraw from the screw hole gradually under the effect of screw hole, treat fastening bolt and withdraw from the screw hole completely after, go up circular apron, drive fastening bolt and withdraw from the inside of cutter main part, can take off cutter main part, nevertheless because the existence of limiting plate, fastening bolt can not directly withdraw from the inside of first blind hole to fastening bolt's loss has been avoided.
Preferably, location portion includes connecting plate, slider, optical axis, spacing piece, second blind hole and compression spring, the side at circular apron is fixed to the connecting plate, slider slidable mounting is on the optical axis, and slider fixed mounting is in the inside of connecting plate, the second blind hole is seted up on the cutter arbor, the bottom of optical axis and the interior bottom fixed connection of second blind hole, spacing piece is fixed at the top of optical axis, compression spring cup joints on the optical axis, and compression spring's bottom is located the inside of second blind hole.
Adopt above-mentioned scheme, through setting up location portion for circular cover plate can remain throughout to be connected with the pole, thereby can prevent losing of circular cover plate, its concrete principle as follows: after the fastening bolt completely exits from the threaded hole, the contracted compression spring can push the sliding block to move upwards along the optical axis until the connecting plate is in contact with the limiting piece, and at the moment, people can take out the cutter main body.
Preferably, screens portion includes rectangular block, first recess, second recess, spring leaf, screens arch and screens groove, rectangular block fixed mounting is at the upper surface of circular apron, the upper surface at the rectangular block is seted up to first recess, the internal surface at first recess is seted up to the second recess, the interior bottom surface at the second recess is installed to the one end of spring leaf, and the spring leaf can provide the holding power for the screens arch can the joint be all the time in the inside in screens groove, when needs put aside the limiting plate, need press the screens arch earlier, and it is protruding when the screens, just can put aside the one end of limiting plate from the inside of first recess when withdrawing the screens groove completely, the other end at the spring leaf is fixed to the screens arch, the screens groove is seted up on the limiting plate, and screens groove and screens arch set up for the phase-match.
By adopting the scheme, the stability of the limiting plate is further improved by arranging the clamping part, so that the limiting plate cannot be moved away from the position right above the first blind hole when being subjected to large external force, and the stability is better.
Compared with the prior art, the beneficial effects of the utility model are that: this multi-angle numerical control cutter presss from both sides tight cutter main part through setting up circular base and circular apron for people can be at the angle of great within range adjustment edge of a knife, cooperates positioning channel groove and triangular pyramid simultaneously, makes the edge of a knife can not take place the skew of angle when cutting the work piece, and stability is high, and the practicality is strong.
Drawings
FIG. 1 is an overall structure diagram of the present invention;
FIG. 2 is a side sectional view of the cutter body of the present invention;
fig. 3 is a top view of the circular base of the present invention;
fig. 4 is a side sectional view of the rectangular block of the present invention.
In the figure: the tool comprises a tool body 1, a tool bar 2, a tool edge 3, a circular base 4, a circular cover plate 5, a positioning clamping groove 6, a triangular pyramid 7, a threaded hole 8, a first blind hole 9, a fastening bolt 10, an angle scale wire groove 11, a reference wire groove 12, a connecting plate 13, a sliding block 14, a light axis 15, a limiting plate 16, a second blind hole 17, a compression spring 18, a damping rotating shaft 19, a limiting plate 20, a through hole 21, a rectangular block 22, a first groove 23, a second groove 24, a spring plate 25, a clamping protrusion 26 and a clamping groove 27.
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.
Referring to fig. 1-4, a multi-angle numerical control cutter comprises a cutter body 1, a cutter bar 2 and a knife edge 3, wherein a circular base 4 is arranged at the bottom of the cutter body 1, the circular base 4 is used for placing the cutter body 1, a circular cover plate 5 is arranged at the top of the cutter body 1, the circular cover plate 5 is used for covering the cutter body 1, the circular base 4 is fixed on the cutter bar 2, a plurality of positioning clamping grooves 6 are respectively arranged on the upper surface of the circular base 4 and the lower surface of the circular cover plate 5, a plurality of triangular pyramids 7 are respectively arranged on the outer surfaces of the upper end and the lower end of the cutter body 1, the positioning clamping grooves 6 are matched with the triangular pyramids 7 to prevent the cutter body 1 from rotating between the circular base 4 and the circular cover plate 5, the triangular pyramids 7 and the positioning clamping grooves 6 are arranged in a matching manner, a threaded hole 8, therefore, the circular base 4 and the circular cover plate 5 can firmly clamp the cutter body 1, a first blind hole 9 is formed in the center of the circle of the upper surface of the circular cover plate 5, the first blind hole 9 is used for accommodating a bolt head of a fastening bolt 10, the fastening bolt 10 is connected with the internal thread of the threaded hole 8, the fastening bolt 10 penetrates through the cutter body 1 and the circular cover plate 5, the bolt head of the fastening bolt 10 is located inside the first blind hole 9, a limiting unit is arranged on the upper surface of the circular cover plate 5 and assembled to limit the position of the fastening bolt 10, and a positioning part is arranged on one side of the circular cover plate 5; through setting up circular base 4 and circular apron 5 and pressing from both sides tight cutter main part 1 for people can be at the angle of great within range adjustment edge of a knife 3, cooperate positioning channel groove 6 and triangular pyramid 7 simultaneously, make edge of a knife 3 can not take place the skew of angle when cutting the work piece, stability is high, and the practicality is strong, and cutter main part 1's installation as follows: remove cutter main part 1 to between circular base 4 and circular apron 5, then adjust the angle of edge of a knife 3 according to the demand of reality, directly place cutter main part 1 on circular base 4 after the completion, the triangular pyramid 7 that is located cutter main part 1 bottom this moment will enter into and set up inside 6 locating slot on circular base 4, then utilize fastening bolt 10 and screw hole 8 with circular apron 5 fixed mounting on circular base 4, it is fixed to the clamp of realization cutter main part 1, it is located the triangular pyramid 7 at cutter main part 1 top this moment and will enter into and set up inside 6 locating slot on circular apron 5, therefore, when the 3 atresss of edge of a knife, whole cutter main part 1 still can remain stable.
In the utility model, a plurality of angle scale slots 11 are arranged on the upper surface of the circular cover plate 5, a reference slot 12 is arranged on the upper surface of the knife edge 3, and the angle scale slots 11 are annularly distributed on the upper surface of the circular cover plate 5; by arranging the angle scale line grooves 11 and the reference line grooves 12, people can determine the angle of the knife edge 3 according to the angle of the angle scale line grooves 11 pointed by the reference line grooves 12, and convenience is brought to the use of people.
In the utility model, the limiting unit comprises a damping rotating shaft 19 and a limiting plate 20, the limiting plate 20 is movably mounted on the upper surface of the circular cover plate 5 through the damping rotating shaft 19, a through hole 21 is formed in the limiting plate 20, the through hole 21 is arranged, so that people can conveniently use tools to pass through the limiting plate 20 to screw the fastening bolt 10, and one end of the limiting plate 20 is provided with a clamping part; through setting up damping pivot 19 for limiting plate 20 can be located first blind hole 9 directly over all the time, thereby just can prevent that the condition that fastening bolt 10 loses from taking place, and its concrete principle is as follows: when people need not become flexible fastening bolt 10, usable instrument passes through-hole 21 and directly twists fastening bolt 10, at this moment, fastening bolt 10 will withdraw from screw hole 8 gradually under the effect of screw hole 8, treat that fastening bolt 10 withdraws from screw hole 8 after completely, go up circular apron 5, drive fastening bolt 10 and withdraw from the inside of cutter main body 1, can take off cutter main body 1, but because limiting plate 20's existence, fastening bolt 10 can not directly withdraw from the inside of first blind hole 9, thereby fastening bolt 10's loss has been avoided.
The utility model discloses in, location portion includes connecting plate 13, slider 14, optical axis 15, spacing piece 16, second blind hole 17 and compression spring 18, connecting plate 13 is fixed in the side of circular apron 5, slider 14 slidable mounting is on optical axis 15, and slider 14 fixed mounting is in the inside of connecting plate 13, second blind hole 17 is seted up on cutter arbor 2, the bottom of optical axis 15 and the interior bottom surface fixed connection of second blind hole 17, spacing piece 16 is fixed at the top of optical axis 15, compression spring 18 cup joints on optical axis 15, and compression spring 18's bottom is located the inside of second blind hole 17; through setting up location portion for circular cover plate 5 can remain throughout being connected with cutter arbor 2, thereby can prevent losing of circular cover plate 5, its theory of particularity is as follows: after the fastening bolt 10 is completely withdrawn from the threaded hole 8, the contracted compression spring 18 pushes the slider 14 to move up along the optical axis 15 until the connecting plate 13 contacts the limiting piece 16, and at this time, people can take out the tool body 1.
In the utility model, the clamping part comprises a rectangular block 22, a first groove 23, a second groove 24, a spring leaf 25, a clamping protrusion 26 and a clamping groove 27, the rectangular block 22 is fixedly arranged on the upper surface of the circular cover plate 5, the first groove 23 is arranged on the upper surface of the rectangular block 22, the second groove 24 is arranged on the inner surface of the first groove 23, one end of the spring leaf 25 is arranged on the inner bottom surface of the second groove 24, the spring leaf 25 can provide supporting force for the clamping protrusion 26, so that the clamping protrusion 26 can be always clamped inside the clamping groove 27, when the position-limiting plate 20 needs to be moved away, the position-limiting protrusion 26 needs to be pressed first, when the position-limiting protrusion 26 completely exits the position-limiting groove 27, one end of the position-limiting plate 20 can be moved away from the inside of the first groove 23, the position-limiting protrusion 26 is fixed at the other end of the spring piece 25, the position-limiting groove 27 is arranged on the position-limiting plate 20, and the position-limiting groove 27 and the position-limiting protrusion 26 are arranged in a matching manner; through setting up screens portion, further improved limiting plate 20's stability for limiting plate 20 also can not follow and move away from directly over first blind hole 9 when receiving great external force, and stability is better.
In conclusion, in the multi-angle numerical control tool, the tool body 1 is moved to a position between the circular base 4 and the circular cover plate 5, then the angle of the knife edge 3 is determined according to the angle of the angle scale line slot 11 pointed by the reference line slot 12, the tool body 1 is directly placed on the circular base 4 after the completion, the triangular pyramid 7 positioned at the bottom of the tool body 1 enters the positioning slot 6 arranged on the circular base 4, then the circular cover plate 5 is fixedly arranged on the circular base 4 by the fastening bolt 10 and the threaded hole 8, so as to clamp and fix the tool body 1, the triangular pyramid 7 positioned at the top of the tool body 1 enters the positioning slot 6 arranged on the circular cover plate 5, therefore, when the knife edge 3 is stressed, the whole tool body 1 can still keep stable, when a user needs to loosen the fastening bolt 10, the fastening bolt 10 can be directly screwed by the tool through the through hole 21, at this moment, the fastening bolt 10 will gradually exit from the threaded hole 8 under the action of the threaded hole 8, after the fastening bolt 10 completely exits from the threaded hole 8, the contracted compression spring 18 will push the slider 14 to move up along the optical axis 15, i.e. the circular cover plate 5 moves up, until the connecting plate 13 contacts with the limiting plate 16, at this moment, people can take out the cutter body 1, drive the fastening bolt 10 to exit from the inside of the cutter body 1, i.e. take off the cutter body 1, but due to the existence of the limiting plate 20, the fastening bolt 10 will not directly exit from the inside of the first blind hole 9, thereby avoiding the loss of the fastening bolt 10, the multi-angle numerical control cutter, through setting the circular base 4 and the circular cover plate 5 to clamp the cutter body 1, so that people can adjust the angle of the knife edge 3 in a larger range, and simultaneously cooperate with the positioning slot 6 and the triangular pyramid 7, so that the knife edge 3 will, high stability and strong practicability.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (5)
1. A multi-angle numerical control cutter comprises a cutter body (1), a cutter bar (2) and a cutter edge (3), and is characterized in that a circular base (4) is arranged at the bottom of the cutter body (1), a circular cover plate (5) is arranged at the top of the cutter body (1), the circular base (4) is fixed on the cutter bar (2), a plurality of positioning clamping grooves (6) are respectively formed in the upper surface of the circular base (4) and the lower surface of the circular cover plate (5), a plurality of triangular pyramids (7) are respectively arranged on the outer surfaces of the upper end and the lower end of the cutter body (1), the triangular pyramids (7) and the positioning clamping grooves (6) are arranged in a matching manner, a threaded hole (8) is formed in the circle center of the circular base (4), a first blind hole (9) is formed in the circle center of the upper surface of the circular cover plate (5), and a fastening bolt (10), a fastening bolt (10) penetrates through the cutter body (1) and the circular cover plate (5), and the bolt head of the fastening bolt (10) is positioned inside the first blind hole (9);
the upper surface of the circular cover plate (5) is provided with a limiting unit which is assembled to limit the position of a fastening bolt (10), and one side of the circular cover plate (5) is provided with a positioning part.
2. The multi-angle numerical control cutter according to claim 1, wherein a plurality of angle scale slots (11) are formed in the upper surface of the circular cover plate (5), a reference slot (12) is formed in the upper surface of the knife edge (3), and the angle scale slots (11) are annularly distributed on the upper surface of the circular cover plate (5).
3. The multi-angle numerical control cutter according to claim 1, wherein the limiting unit comprises a damping rotating shaft (19) and a limiting plate (20), the limiting plate (20) is movably mounted on the upper surface of the circular cover plate (5) through the damping rotating shaft (19), a through hole (21) is formed in the limiting plate (20), and a clamping portion is arranged at one end of the limiting plate (20).
4. The multi-angle numerical control cutter according to claim 1, wherein the positioning portion comprises a connecting plate (13), a slider (14), an optical axis (15), a limiting piece (16), a second blind hole (17) and a compression spring (18), the connecting plate (13) is fixed on the side surface of the circular cover plate (5), the slider (14) is slidably mounted on the optical axis (15), the slider (14) is fixedly mounted inside the connecting plate (13), the second blind hole (17) is formed in the cutter bar (2), the bottom of the optical axis (15) is fixedly connected with the inner bottom surface of the second blind hole (17), the limiting piece (16) is fixed at the top of the optical axis (15), the compression spring (18) is sleeved on the optical axis (15), and the bottom of the compression spring (18) is located inside the second blind hole (17).
5. The multi-angle numerical control cutter according to claim 3, wherein the clamping portion comprises a rectangular block (22), a first groove (23), a second groove (24), a spring piece (25), a clamping protrusion (26) and a clamping groove (27), the rectangular block (22) is fixedly installed on the upper surface of the circular cover plate (5), the first groove (23) is formed in the upper surface of the rectangular block (22), the second groove (24) is formed in the inner surface of the first groove (23), one end of the spring piece (25) is installed on the inner bottom surface of the second groove (24), the clamping protrusion (26) is fixed at the other end of the spring piece (25), the clamping groove (27) is formed in the limiting plate (20), and the clamping groove (27) and the clamping protrusion (26) are arranged in a matched manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021873218.5U CN213163117U (en) | 2020-09-01 | 2020-09-01 | Multi-angle numerical control cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021873218.5U CN213163117U (en) | 2020-09-01 | 2020-09-01 | Multi-angle numerical control cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213163117U true CN213163117U (en) | 2021-05-11 |
Family
ID=75770403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021873218.5U Expired - Fee Related CN213163117U (en) | 2020-09-01 | 2020-09-01 | Multi-angle numerical control cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213163117U (en) |
-
2020
- 2020-09-01 CN CN202021873218.5U patent/CN213163117U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213163117U (en) | Multi-angle numerical control cutter | |
| CN214066538U (en) | Knife rest mechanism for slicer | |
| CN214383100U (en) | Mobile phone positioning hole locking and fixing device | |
| CN211137306U (en) | Circular saw cutting equipment with clamping mechanism | |
| CN213438815U (en) | Sheet metal working is with panel beating frock of bending of polishing | |
| CN213918482U (en) | Goose liver paste cutter | |
| CN210907628U (en) | Clamping device for die splicing block side punching hole machining | |
| CN211276793U (en) | Cutting equipment for processing cylindrical rod | |
| CN210970088U (en) | Paperboard slotting cutter | |
| CN210379314U (en) | Small-size lithium cell trimming device | |
| CN214559097U (en) | Multi-blade combined three-dimensional adjusting cutter | |
| CN218747154U (en) | Double-locking clamp | |
| CN219787416U (en) | Anti-falling machine tool cutter clamping device | |
| CN218948106U (en) | Under-table basin supporting tool | |
| CN221407646U (en) | Lightning protection grounding clamp for artificial island | |
| CN219079933U (en) | Clothing tailoring table | |
| CN218638578U (en) | Adjustable center height tool rest of lathe and lathe | |
| CN215700851U (en) | Angle-adjustable universal knife sharpening support | |
| CN212682462U (en) | Cutter clamping device | |
| CN212794542U (en) | High-stability grinding clamp for small drill bit deep hole drill | |
| CN218828886U (en) | Cable clamp for cable bridge | |
| CN221212035U (en) | Grooving and perforating device for wood processing | |
| CN215150648U (en) | Ceramic tile cutting machine convenient to externally fix | |
| CN218927922U (en) | Adjustable heat shrinkage pipe stripping device | |
| CN220839273U (en) | Quick arc making equipment for cutter production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 Termination date: 20210901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |