CN211136643U - Polisher is used in automobile die processing - Google Patents
Polisher is used in automobile die processing Download PDFInfo
- Publication number
- CN211136643U CN211136643U CN201921804025.1U CN201921804025U CN211136643U CN 211136643 U CN211136643 U CN 211136643U CN 201921804025 U CN201921804025 U CN 201921804025U CN 211136643 U CN211136643 U CN 211136643U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- bearing shell
- controller
- rack
- automobile
- 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
- 238000005498 polishing Methods 0.000 claims abstract description 32
- 238000003754 machining Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to the technical field of automobile molds, in particular to a polisher for processing automobile molds, which comprises a workbench, a controller, a polishing mechanism and a clamping mechanism, wherein the clamping mechanism comprises a processing table and four groups of clamping components, the polishing mechanism comprises a polishing rod, a bearing shell, a height adjusting component and an angle adjusting component, and a rotary cylinder, the clamping components, the height adjusting component and the angle adjusting component are all electrically connected with the controller, the overall practicability of the sander is also improved.
Description
Technical Field
The utility model relates to an automobile mold technical field, concretely relates to polisher is used in automobile mold processing.
Background
One first presents the body of a car in front of a car. That is to say the body is the identifying assembly of the car. The body represents the visual characteristic of that type of automobile. The automobile die is a generic term of dies for punching all stampings on an automobile body in a narrow sense. Namely an automobile body stamping die. Such as roof flanging dies, beam stiffener compression dies, and the like. The most important component of the automobile mould is a covering part mould. Such molds are mainly cold stamping dies. The term "automobile mold" in the broad sense is a generic term for molds used to manufacture all parts of automobiles. For example, a press mold, an injection mold, a forging mold, a casting wax mold, a glass mold, and the like. The stampings on the automobile body are largely divided into covering pieces, beam pieces and general stampings. The stamping capable of obviously representing the characteristics of the automobile image is an automobile covering part. Therefore, the more specific automobile mold can be called as an automobile panel stamping mold. The stamping die for the automobile covering parts is shortened. For example, a front door outer panel trim die, a front door inner panel punching die, and the like.
The current equipment of polishing that is used for car work piece to polish is polished by the handheld rifle of polishing of manual work usually, and work efficiency is low, and the speed of polishing is slow, and the amount of labour is big, and the current car work piece's the mould cost of polishing is high, and the cost of polishing is then higher, is unfavorable for increasing the income.
According to the defects of the prior art, a grinding machine for machining the automobile mold is needed to be designed, wherein the grinding speed is high, the working efficiency is high, the labor amount is small, and the grinding cost is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a polisher is used in automobile mold processing.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a polisher is used in processing of automobile mold, includes the workstation, still includes controller, grinding machanism and fixture, the controller is established on the workstation, fixture passes through revolving cylinder level setting and fixes automobile workpiece at the top of workstation, and fixture includes processing platform and four groups clamping components, the processing platform is fixed to be established on revolving cylinder's output, and four groups clamping components symmetry are established in the top four corners of processing platform, grinding machanism slides through the slip table and establishes in the side of clamping mechanism in order to polish automobile workpiece, and grinding machanism includes polishing stick, bearing shell, height adjusting component and angle adjusting component, height adjusting component slides and establishes on the slip table, the bearing shell passes through the bolt and installs at height adjusting component's top, height adjusting component is close to revolving cylinder's one end fixedly connected with backup pad, the grinding rod is rotatably arranged on the supporting plate, the angle adjusting component is inserted in the bearing shell, and the rotary cylinder, the clamping component, the height adjusting component and the angle adjusting component are all electrically connected with the controller.
Preferably, the height adjusting assembly comprises a sliding rod and a hydraulic rod, the sliding rod is arranged on the sliding table in a sliding mode, the hydraulic rod is vertically inserted into the sliding rod, a supporting frame is fixedly connected to the output end of the hydraulic rod, and the hydraulic rod is electrically connected with the controller.
Preferably, the angle adjusting assembly comprises a long shaft cylinder, a rack and bevel gears, the rack is arranged in the bearing shell in a sliding mode, the long shaft cylinder is fixedly arranged at one end, far away from the rotary cylinder, of the bearing shell, the output end of the long shaft cylinder penetrates through the bearing shell and is fixedly connected with one end, far away from the rotary cylinder, of the rack, the long shaft cylinder is electrically connected with the controller, the bevel gears are rotatably arranged on the supporting plate and are meshed with the rack, and the grinding rods are fixedly connected with the bevel gears.
Preferably, every group clamping unit all includes pinch-off blades and unipolar cylinder, unipolar cylinder is fixed to be established at the processing bench, the pinch-off blades is fixed to be established on unipolar cylinder's output to the cover is equipped with the limiting plate on its output, unipolar cylinder is connected with the controller electricity.
Preferably, the bottom both ends of slide bar all fixedly connected with slider, the both ends fixedly connected with guide rail of slip table, every slider all with a guide rail sliding connection.
Preferably, the inner wall of the bearing shell is provided with a sliding groove for the rack to slide, and one end of the bearing shell, which is far away from the sliding table, is provided with an avoiding notch for the rack to stretch out.
Preferably, the bottom of the workbench is integrally provided with a storage chamber, and the open end of the storage chamber is provided with a protective door.
Preferably, four corners of the bottom of the storage chamber are fixedly provided with supporting legs.
Has the advantages that:
1. the utility model discloses a design workstation, controller, grinding machanism, fixture, revolving cylinder to through above several people's cooperations, replaced current artifical mode of polishing with automatic structure, improved efficiency, reduced the amount of labour, and promoted the speed of polishing.
2. The utility model discloses an automatic structure of design has replaced current grinding mold, compares in current grinding mold, has practiced thrift the cost of polishing, is favorable to expanding the income.
3. The utility model discloses designed altitude mixture control subassembly and angle adjusting subassembly simultaneously, can satisfy the thickness inequality, the requirement of polishing of the car work piece of the multiple characteristic of surperficial unevenness has promoted the effect of polishing when, has also improved the whole practicality of polisher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a schematic perspective view of the second embodiment of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at B;
fig. 5 is a schematic perspective view of the sliding table, the height adjusting assembly and the angle adjusting assembly of the present invention;
in the figure: the grinding machine comprises a workbench 1, a controller 2, a grinding mechanism 3, a clamping mechanism 4, a rotary air cylinder 5, a machining table 6, a clamping assembly 7, a sliding table 8, a grinding rod 9, a bearing shell 10, a height adjusting assembly 11, an angle adjusting assembly 12, a supporting plate 13, a sliding rod 14, a hydraulic rod 15, a supporting frame 16, a long shaft air cylinder 17, a rack 18, umbrella teeth 19, a clamping plate 20, a single shaft air cylinder 21, a limiting plate 22, a sliding block 23, a guide rail 24, a storage chamber 25 and a protective door 26.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. 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 to 5, the polisher for machining the automobile mold comprises a workbench 1, and further comprises a controller 2, a polishing mechanism 3 and a clamping mechanism 4, wherein the controller 2 is arranged on the workbench 1, the clamping mechanism 4 is horizontally arranged at the top of the workbench 1 through a rotary cylinder 5 to fix the automobile workpiece, the clamping mechanism 4 comprises a machining table 6 and four groups of clamping components 7, the machining table 6 is fixedly arranged at the output end of the rotary cylinder 5, the four groups of clamping components 7 are symmetrically arranged at the four corners of the top of the machining table 6, the polishing mechanism 3 is arranged at the side of the clamping mechanism through a sliding table 8 in a sliding manner to polish the automobile workpiece, the polishing mechanism 3 comprises a polishing rod 9, a bearing shell 10, a height adjusting component 11 and an angle adjusting component 12, the height adjusting component 11 is arranged on the sliding table 8 in a sliding manner, the bearing shell 10 is arranged at the top of the height adjusting component 11 through a bolt, height adjusting part 11 is close to the one end fixedly connected with backup pad 13 of revolving cylinder 5, the rotatable setting of stick of polishing 9 is on backup pad 13, angle adjusting part 12 inserts the inside of establishing at bearing shell 10, revolving cylinder 5, clamping component 7, height adjusting part 11 and angle adjusting part 12 all are electric connection with controller 2.
The angle adjusting component 12 comprises a long shaft cylinder 17, a rack 18 and bevel gears 19, the rack 18 is arranged in the bearing shell 10 in a sliding manner, the long shaft cylinder 17 is fixedly arranged at one end of the bearing shell 10 far away from the rotary cylinder 5, the output end of the long shaft cylinder 17 penetrates through the bearing shell 10 and is fixedly connected with one end of the rack 18 far away from the rotary cylinder 5, the long shaft cylinder 17 is electrically connected with the controller 2, the bevel gears 19 are rotatably arranged on a support plate 13 and are meshed with the rack 18, the grinding rod 9 is fixedly connected with the bevel gears 19, the surface of the automobile workpiece is uneven due to the difference of the automobile workpieces, the angle adjusting component 12 is designed, when the workpiece with the uneven surface is encountered, the long shaft cylinder 17 is started through the controller 2, so that the output end of the angle adjusting component extends out, and the rack 18 is driven by a person to slide in the bearing shell 10, and then the bevel gears, because bevel gear 19 is rotatable to be set up on backup pad 13 and with rack 18 meshing connection, polishing stick 9 is again with bevel gear 19 fixed connection, therefore drive polishing stick 9 rotatory to satisfy the requirement of polishing on unevenness's work piece surface.
Every group's clamping unit 7 all includes pinch-off blades 20 and unipolar cylinder 21, unipolar cylinder 21 is fixed to be established on processing platform 6, pinch-off blades 20 are fixed to be established on unipolar cylinder 21's output to the cover is equipped with limiting plate 22 on its output, unipolar cylinder 21 is connected with 2 electricity of controller, when carrying out polishing of car work piece, at first puts processing platform 6 with the work piece through the manual work on, then starts four unipolar cylinders 21 through controller 2 to drive four pinch-off blades 20 and stretch out and press from both sides the work piece tightly and fixed, so that polish.
The equal fixedly connected with slider 23 in bottom both ends of slide bar 14, the both ends fixedly connected with guide rail 24 of slip table 8, every slider 23 all with a guide rail 24 sliding connection, when slide bar 14 slided on slip table 8, because vertical during slide bar 14, for preventing that it from producing rocks, therefore design two sliders 23 and with slide rail sliding connection to guarantee the gliding stability of slide bar 14, and then promote the effect of polishing.
Be equipped with on the inner wall of bearing shell 10 and supply the gliding spout of rack 18, its one end of keeping away from slip table 8 is seted up and is supplied the breach of dodging that rack 18 stretched out, and when rack 18 slided in bearing shell 10, the spout played limiting displacement, and then guaranteed the gliding stability of rack 18, dodged the breach and provide the operation space for the slip of rack 18.
The bottom of the workbench 1 is integrally provided with a storage chamber 25, the open end of the storage chamber 25 is provided with a protective door 26, the storage chamber 25 can be used for storing some automobile workpieces or tool parts for polishing, and the protective door 26 plays a role in sealing and preventing the tool parts from rusting.
Supporting legs are fixedly arranged at four corners of the bottom of the storage chamber 25, and the four supporting legs are used for supporting the grinding machine.
The working principle is as follows: when polishing the automobile workpiece, the workpiece is firstly manually placed on the processing table 6, and then the four single-shaft cylinders 21 are started through the controller 2, so that the four clamping plates 20 are driven to extend to clamp and fix the workpiece.
After the car work piece is put on processing platform 6 and is pressed from both sides tightly and fixed, start slip table 8, thereby it slides to the one end that is close to processing platform 6 to drive slide bar 14, then start hydraulic stem 15 through controller 2, drive support frame 16 descends, and then drive grinding rod 9 descends, until grinding rod 9 and workpiece surface laminating, then start grinding rod 9, polish the work piece, when slide bar 14 slides on slip table 8, because slide bar 14 is vertical, rock for preventing it from producing, therefore design two sliders 23 and with slide rail sliding connection, thereby guarantee the gliding stability of slide bar 14, and then promote the effect of polishing.
Because the difference of car work piece, there can be the characteristic of surface unevenness, therefore design angle adjusting part 12, when meetting the work piece of surface unevenness, start major axis cylinder 17 through controller 2, thereby make its output stretch out, because of and then the people drive rack 18 and slide in bearing shell 10, and then it is rotatory to drive the bevel gear 19 rather than the meshing is connected, because the rotatable setting of bevel gear 19 is connected in backup pad 13 and with the meshing of rack 18, the stick of polishing 9 again with bevel gear 19 fixed connection, therefore it is rotatory to drive the stick of polishing 9, with the requirement of polishing on satisfying unevenness's work piece surface, when rack 18 slides in bearing shell 10, the spout plays limiting displacement, and then guarantee the gliding stability of rack 18, dodge the breach and provide the operation space for the slip of rack 18.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (8)
1. The utility model provides a polisher is used in processing of automobile mold, includes workstation (1), its characterized in that: still include controller (2), grinding machanism (3) and fixture (4), establish on workstation (1) controller (2), fixture (4) sets up at the top of workstation (1) through revolving cylinder (5) level and is in order to fix automobile workpiece, and fixture (4) are including processing platform (6) and four clamping components of group (7), processing platform (6) are fixed to be established on the output of revolving cylinder (5), and four clamping components of group (7) symmetry are established in the top four corners of processing platform (6), grinding machanism (3) slide through slip table (8) and establish the side of adding holding mechanism in order to grind automobile workpiece, and grinding machanism (3) are including grinding rod (9), bearing shell (10), altitude mixture control subassembly (11) and angle modulation subassembly (12), altitude mixture control subassembly (11) slide and establish on slip table (8), bearing shell (10) pass through the bolt and install the top at altitude mixture control subassembly (11), one end fixedly connected with backup pad (13) that altitude mixture control subassembly (11) are close to revolving cylinder (5), the rotatable setting of stick of polishing (9) is on backup pad (13), angle adjusting part (12) are inserted and are established the inside of bearing shell (10), revolving cylinder (5), clamping component (7), altitude mixture control subassembly (11) and angle adjusting part (12) all are electric connection with controller (2).
2. The grinding machine for machining the automobile mold according to claim 1, wherein: height adjusting subassembly (11) include slide bar (14) and hydraulic stem (15), slide bar (14) slide and establish on slip table (8), hydraulic stem (15) are vertical to be inserted and to be established on slide bar (14), fixedly connected with support frame (16) on its output, hydraulic stem (15) are connected with controller (2) electricity.
3. The grinding machine for machining the automobile mold according to claim 1, wherein: angle adjusting part (12) include major axis cylinder (17), rack (18) and bevel gear (19), rack (18) slide and establish the inside at bearing shell (10), major axis cylinder (17) are fixed to be established in the one end that bearing shell (10) kept away from revolving cylinder (5) to its output passes bearing shell (10) and keeps away from the one end fixed connection of revolving cylinder (5) with rack (18), major axis cylinder (17) are connected with controller (2) electricity, the rotatable setting of bevel gear (19) is connected on backup pad (13) and with rack (18) meshing, stick of polishing (9) and bevel gear (19) fixed connection.
4. The grinding machine for machining the automobile mold according to claim 1, wherein: every group clamping unit (7) all includes pinch-off blades (20) and unipolar cylinder (21), unipolar cylinder (21) are fixed to be established on processing platform (6), pinch-off blades (20) are fixed to be established on the output of unipolar cylinder (21) to the cover is equipped with limiting plate (22) on its output, unipolar cylinder (21) are connected with controller (2) electricity.
5. The grinding machine for machining the automobile mold according to claim 2, characterized in that: the bottom both ends of slide bar (14) all fixedly connected with slider (23), the both ends fixedly connected with guide rail (24) of slip table (8), every slider (23) all with a guide rail (24) sliding connection.
6. The grinding machine for machining the automobile mold according to claim 3, characterized in that: the inner wall of the bearing shell (10) is provided with a sliding groove for the sliding of the rack (18), and one end of the bearing shell, which is far away from the sliding table (8), is provided with an avoiding notch for the extending of the rack (18).
7. The grinding machine for machining the automobile mold according to claim 1, wherein: the bottom of workstation (1) integrated into one piece is provided with storeroom (25), be equipped with guard gate (26) on opening of storeroom (25) and hold.
8. The grinding machine for machining the automobile mold according to claim 7, wherein: supporting legs are fixedly arranged at four corners of the bottom of the storage chamber (25).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921804025.1U CN211136643U (en) | 2019-10-24 | 2019-10-24 | Polisher is used in automobile die processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921804025.1U CN211136643U (en) | 2019-10-24 | 2019-10-24 | Polisher is used in automobile die processing |
Publications (1)
Publication Number | Publication Date |
---|---|
CN211136643U true CN211136643U (en) | 2020-07-31 |
Family
ID=71767894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201921804025.1U Expired - Fee Related CN211136643U (en) | 2019-10-24 | 2019-10-24 | Polisher is used in automobile die processing |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN211136643U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114029818A (en) * | 2021-11-03 | 2022-02-11 | 武汉行芝达自动化科技有限公司 | Industrial robot flexible polishing equipment and system based on machine vision |
CN115091288A (en) * | 2022-06-29 | 2022-09-23 | 广东石块链科技发展有限公司 | Edge grinding machine convenient for angle adjustment |
-
2019
- 2019-10-24 CN CN201921804025.1U patent/CN211136643U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114029818A (en) * | 2021-11-03 | 2022-02-11 | 武汉行芝达自动化科技有限公司 | Industrial robot flexible polishing equipment and system based on machine vision |
CN114029818B (en) * | 2021-11-03 | 2022-10-11 | 武汉行芝达自动化科技有限公司 | Flexible grinding equipment for industrial robot based on machine vision |
CN115091288A (en) * | 2022-06-29 | 2022-09-23 | 广东石块链科技发展有限公司 | Edge grinding machine convenient for angle adjustment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN210703572U (en) | Steel plate cutting device with trimming device | |
CN211136643U (en) | Polisher is used in automobile die processing | |
CN216462974U (en) | Head cutting and integrated device that polishes | |
CN111300049A (en) | Assembly of machining equipment for aluminum alloy corner-wrapping blocks | |
CN215094127U (en) | Wood pile sharpening machine | |
CN211939335U (en) | Door plant deburring device | |
CN213729281U (en) | A novel burring robot for outside rear-view mirror die casting | |
CN210997470U (en) | Auto-parts production trompil equipment | |
CN214263460U (en) | Spinning platform for machining fan | |
CN214866991U (en) | Novel forging machine is anchor clamps for forging platform | |
CN210756342U (en) | Rotary disc type engraving and milling machine | |
CN113814873A (en) | Polishing and grinding equipment for machining hardware tool castings | |
CN208303987U (en) | Large-scale hinge covers milling machine | |
CN215467828U (en) | Spiral bevel gear warm pier forming die | |
CN219967562U (en) | Austenitic stainless steel forging production loading attachment | |
CN217018272U (en) | Pneumatic impact bending chamfering device for automobile seat frame production | |
CN212762809U (en) | Independent fixed piston pin polishing device | |
CN109773245A (en) | Process equipment and processing method for the finishing of floor drain panel flash | |
CN212095775U (en) | Aluminum alloy die casting surface grinding device | |
CN216228467U (en) | Motor side cover edge grinding device | |
CN212192432U (en) | Trimming device for molded outer plate of automobile front wheel cover | |
CN220699130U (en) | Surface polishing device for processing mold fittings | |
CN221658831U (en) | Surface treatment device for workpiece machining | |
CN221290646U (en) | Full-automatic frame grinding machine | |
CN211708894U (en) | Trimmer is used in plastic products 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: 20200731 |
|
CF01 | Termination of patent right due to non-payment of annual fee |