CN204843165U - Two -sided chamfer continuous processing system of automobile synchronization regulator gear sleeve - Google Patents
Two -sided chamfer continuous processing system of automobile synchronization regulator gear sleeve Download PDFInfo
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- CN204843165U CN204843165U CN201520629511.XU CN201520629511U CN204843165U CN 204843165 U CN204843165 U CN 204843165U CN 201520629511 U CN201520629511 U CN 201520629511U CN 204843165 U CN204843165 U CN 204843165U
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Abstract
The utility model relates to a two -sided chamfer continuous processing system of automobile synchronization regulator gear sleeve, beveler one row of setting side by side including two the same double knives processing, each beveler is including the cutter that carries out chamfer processing, the workpiece drive aircraft nose reaches tooth mechanism, the central line at two cutter places just sets up the workpiece drive aircraft nose, front end process position at the workpiece drive aircraft nose sets up tooth mechanism, the workpiece drive aircraft nose is installed on the headstock, each beveler is all in workpiece drive aircraft nose the place ahead, fuselage between two cutter rears is improved level and is adorned an orthoscopic feeding mechanism admittedly, drive belt in each line feeding mechanism says by driving motor drive material is rotatory, install tooth cover turn -over mechanism between these two line feeding mechanism, radially admittedly, adorn a propelling movement cylinder outside the material way to reply tooth mechanism. This system of processing not only can once only accomplish the two -sided chamfer processing of whole tooth cover, has greatly improved production efficiency, has also save pay -off machinery hand, feeding mechanism's configuration simultaneously, also makes whole machining region diminish.
Description
Technical field
The utility model belongs to auto parts and components processing technique field, relates to the processing of gear sleeve of automobile synchronizer, especially a kind of gear sleeve of automobile synchronizer Double-side rounding Continuous maching system.
Background technology
The processing of gear sleeve of automobile synchronizer needs to adopt special equipment to carry out, and to ring gear, the left and right tip surface of its each perpendicular tooth upper and lower end face all needs chamfering.And existing chamfering method adopts conventional annular material road beveler, the periphery in beveler is put in the annular material road of conveying tooth cover workpiece, then adopt manipulator to capture chamfer machining that each tooth cover carries out tip surface.There are the following problems for this processing mode:
1, the annular feed mechanism of tooth cover workpiece is arranged at beveler periphery, and the material automatic flowing that annular material road wants to realize whole production line needs to increase extra mechanism; Because material road is annular, the finished parts processed and unprocessed fur part are present on material road simultaneously, are manually easy to obscured by the material of two states and go wrong.
2, existing method can only the tip surface chamfering of work sheet side, the tip surface chamfering of opposite side must adopt another beveler to process, two lathes cannot realize online processing, intermediate demand manually will put into next beveler material road after workpiece turn-over, so, just easily there is artificial maloperation, not by workpiece turn-over, to such an extent as to cause waste product part to flow into next procedure.
3, existing method must adopt multiple stage beveler and mill auxiliaries thereof, can complete the chamfer machining of a tooth cover workpiece, and make machining area comparatively large, mechanism is complicated, and cost increases
4, can only realize chamfer machining, be interrupted production, cannot realize successional suitability for industrialized production, production efficiency is lower.
By retrieval, find the multinomial structure innovation about tooth cover, or preparation technology, or the material innovation of tooth cover, and do not find identical with the utility model application or akin patent document.
Utility model content
The utility model object is to overcome the deficiencies in the prior art part, and the left and right tip surface chamfering synchronous processing providing a kind of tooth to overlap upper and lower end face also once completes the gear sleeve of automobile synchronizer Double-side rounding Continuous maching system of chamfer machining.
The technical scheme that the utility model realizes above-mentioned purpose is:
A kind of gear sleeve of automobile synchronizer Double-side rounding Continuous maching system, the linear feeding mechanism that the beveler and that this system is processed by two identical double-poles crosses in two beveler processing stations is formed, a beveler row arranged side by side of two identical double-pole processing is arranged, each beveler comprises the cutter carrying out chamfer machining, artifact-driven head and to gear mechanism, the center line at two cutter places is just arranged artifact-driven head, arrange gear mechanism at the operation position, front end of artifact-driven head, artifact-driven head is arranged on headstock, each beveler is all in artifact-driven head front, on fuselage between two cutter rears, level is fixedly mounted with an orthoscopic feed mechanism, each linear feeding mechanism drives the driving-belt in material road to rotate by a drive motors, one tooth cover turn-over mechanism is installed between this Liang Ge linear feeding mechanism, one propelling movement cylinder is being fixedly mounted with to the material road outer radial of reply gear mechanism.
And be describedly made up of toothholder flat-removing air cyclinder, translation stages, lifting cylinder, lifting pedestal, handgrip and wriggling gear mechanism, translation stages is arranged on the fuselage of beveler by guide rail guiding, drives translation stages horizontal movement by flat-removing air cyclinder, promoting pedestal is arranged in translation stages by guide rail guiding, lifting pedestal is driven to move both vertically by lifting cylinder, in the lower bottom promoting pedestal, handgrip is installed, this handgrip is picked up tooth cover workpiece and is passed through to promote, move to wriggling that side is fixedly mounted with on toothholder, this wriggling controls tooth the wriggling oscillating cylinder that toothholder is installed by its lower end, be arranged on artifact-driven head to the tooth cover after tooth after material loading exchange manipulator is picked up, material loading exchanges manipulator and is arranged on column, and on column, carry out upper and lower displacement and self upset, column is packed in horizontal displacement on the translating rails of fuselage one.
And coaxially install a direct driving motor by bearing assembly in described artifact-driven headstock, this direct driving motor driving machine headstock rotates; Coaxial installation one straight line cylinder in the headstock of direct driving motor inboard, coaxial installation one push rod in this straight line cylinder, top, this push rod outer end dress artifact-driven head, realize artifact-driven head thus by push rod pushing tow tooth cover workpiece to tool sharpening position, and drive artifact-driven head rotating to realize overlapping tooth the chamfer machining of workpiece by direct driving motor.
And the fuselage below artifact-driven head is provided with a detection station, be designed with a turnover panel between this detection station and material road, this turnover panel is communicated with a waste product material road.
And, described linear feeding mechanism drives the driving-belt in material road to rotate by a drive motors, the equal radial direction in side, material road at each operation position, beveler artifact-driven head front end is provided with a pair interval cylinder, the plunger interval of these two interval cylinders is stretched out, and carries out tooth, processing gear mechanism to enable tooth cover workpiece enter one by one.
And, described tooth cover turn-over mechanism is pitched by rotation cylinder, rotation and is formed, in rotation Cha Liao road, radial direction forks tooth cover workpiece, after rotation cylinder turns over turnback, tooth is made to overlap the another side of workpiece upward, tooth cover workpiece level is placed on the material road of a rear straight line feed mechanism, and a hang plate is installed in the front end in Hou Yiliao road, and on the material road of the both sides, lower end of hang plate, specular is fixed with a pair baffle plate.
And described two chamfering tools are covered with a debris removal cover, and this debris removal cover is made up of upper box body, middle part casing and bottom casing, and upper box body, middle part casing and bottom casing adopt inner mode of communicating; Two symmetrical inclination cutter passages are shaped with in the corresponding chamfering tool side of upper box body, handpiece channel is shaped with in the corresponding artifact-driven head side of upper box body, cutter passage and handpiece channel and cutter and artifact-driven head are sealed and matched, and are fixed with handle in upper box body upper surface.
Advantage of the present utility model and good effect are:
1, this system of processing adopts two bevelers arranged side by side, the processing stations adopting orthoscopic feed mechanism to cross in two bevelers carries out chamfer machining to tooth cover, and the top and bottom that the orthoscopic feed mechanism between two bevelers adopts tooth cover turn-over mechanism to realize tooth cover overturn two-sided processing, the accuracy that can ensure tooth cover work pieces process to gear mechanism of tooth cover workpiece, tooth cover organisation of working adopts direct driving motor, ensures the precision of tooth cover processing.This system of processing not only disposablely can complete the Double-side rounding processing of whole tooth cover, drastically increases production efficiency, also eliminates the configuration of feeding mechanical hand, feed mechanism simultaneously, also make whole machining area diminish.
2, the linear feeding mechanism that adopts of this system of processing, scientific structure, reasonable in design, two material roads arranged in a straight line adopt reciprocating structure, can continus convergence tooth cover workpiece incessantly; Material road is also provided with interval cylinder, ensures the precise intervals processing of tooth cover workpiece; Tooth cover turn-over mechanism enters the chamfer machining of another side after one side can being completed the tooth cover workpiece automatic turnover of processing, flexible overturning, exquisiteness.
3, this system of processing to gear mechanism by picking up, promote, traversing three work steps complete, and adopt oscillating cylinder to wriggle to tooth, make tooth overlap workpiece and realize, automatically to tooth correction, effectively improve the working (machining) efficiency of tooth cover workpiece, ensure that the machining accuracy of tooth cover workpiece.
4, this system of processing is rotated by direct driving motor workpiece, improves machining accuracy and efficiency; Two chamfering tools carry out chamfering operation simultaneously, and the chamfering precision making tooth overlap ring gear obtains larger raising, ensure that the uniformity of chamfer machining; Two chamfering tools are covered with a debris removal cover, to the dedusting of iron filings, collection when can ensure chamfer machining, improve the feature of environmental protection of processing.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the perspective view of the separate unit beveler of Fig. 1;
Fig. 4 is the A portion structure enlarged diagram of Fig. 3;
Fig. 5 is the structural front view of the utility model linear feeding mechanism;
Fig. 6 is the top view of Fig. 5;
Fig. 7 is the rearview of Fig. 5;
Fig. 8 is the perspective view of Fig. 5;
Fig. 9 is the structure enlarged front view of the utility model artifact-driven headstock;
Figure 10 be Fig. 9 B-B to cross-sectional view;
Figure 11 is the syndeton enlarged front view in former and later two material roads of orthoscopic feed mechanism;
Figure 12 is the top view of Figure 11;
Figure 13 is the structural front view of the utility model debris removal cover;
Figure 14 is the left view of Figure 13;
Figure 15 is the top view of Figure 13;
Figure 16 is the upward view of Figure 13
Figure 17 is the rearview of Figure 13;
Figure 18 is the perspective view of Figure 13.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of gear sleeve of automobile synchronizer Double-side rounding Continuous maching system, see Fig. 1,2,3,4, the linear feeding mechanism 1,9 that the beveler 7,10 and processed by two identical double-poles crosses in two beveler processing stations is formed.A beveler row arranged side by side of two identical double-pole processing is arranged, and each beveler comprises the cutter 6, the artifact-driven head 13 and to gear mechanism 2 that carry out chamfer machining, and cutter is parallel two, and the center line at two cutter places is just arranged artifact-driven head, arrange gear mechanism at the operation position, front end of artifact-driven head, this is made up of toothholder 22 flat-removing air cyclinder 17, translation stages 18, lifting cylinder 19, lifting pedestal 20, handgrip 21 and wriggling gear mechanism, translation stages is arranged on the fuselage of beveler by guide rail guiding, drives translation stages horizontal movement by flat-removing air cyclinder, promoting pedestal is arranged in translation stages by guide rail guiding, lifting pedestal is driven to move both vertically by lifting cylinder, in the lower bottom promoting pedestal, handgrip is installed, this handgrip can be picked up tooth cover workpiece 12 and pass through to promote, move to wriggling that side is fixedly mounted with on toothholder, this wriggling controls tooth (see Fig. 7) to toothholder by the wriggling oscillating cylinder 30 that its lower end is installed, be arranged on artifact-driven head to the tooth cover after tooth after material loading exchange manipulator 4 is picked up, material loading exchanges manipulator and is arranged on column 3, and upper and lower displacement can be carried out and self upset on column, column is packed in horizontal displacement on the translating rails 5 of fuselage one.Artifact-driven head is arranged on headstock 31, see Fig. 3, Fig. 9, Figure 10, coaxially installs a direct driving motor 33 by bearing assembly 32 in headstock, and this direct driving motor can rotate by driving machine headstock; Coaxial installation one straight line cylinder 35 in the headstock of direct driving motor inboard, coaxial installation one push rod 34 in this straight line cylinder, top, this push rod outer end dress artifact-driven head, realize artifact-driven head thus by push rod pushing tow tooth cover workpiece to tool sharpening position, and drive artifact-driven head rotating to realize overlapping tooth the chamfer machining of workpiece by direct driving motor.After artifact-driven head processes chamfering, tooth is overlapped workpiece and be placed into detection station 15 by material loading exchange manipulator location, after detecting station detection, qualified products are transmitted back to material road by promoting cylinder 26 above turnover panel 23, substandard product then can make turnover panel dig, and promotes substandard product to enter in turnover panel and to be sent by the waste product material road 16 that it is communicated with by promotion cylinder.
The fuselage of each beveler all between artifact-driven head front, two cutter rears is fixedly mounted with an orthoscopic feed mechanism by installing rack 25 level, each linear feeding mechanism drives the driving-belt in material road to rotate by a drive motors 11, the equal radial direction in side, material road at each operation position, beveler artifact-driven head front end is provided with a pair interval cylinder 27, the plunger interval of these two interval cylinders is stretched out, and carries out tooth, processing gear mechanism to enable tooth cover workpiece enter one by one.The rear end of last linear feeding mechanism is provided with a tooth cover turn-over mechanism 8, the structure of this tooth cover turn-over mechanism is see Fig. 5,6,7,8, pitch 28 by rotation cylinder 29, rotation to form, in rotation Cha Liao road, radial direction forks tooth cover workpiece, after rotation cylinder turns over turnback, make tooth overlap the another side of workpiece upward, tooth cover workpiece level is placed on the material road of a rear straight line feed mechanism.The connecting portion schematic enlarged-scale view in former and later two material roads installs a hang plate 36 see the front end in Figure 11,12, Hou Yiliao roads, and the tooth cover workpiece that this hang plate enables last material road pitch and brings tilts to slip on Hou Yiliao road; Overlap workpiece to enable tooth and enter Hou Yiliao road smoothly, on the material road of the both sides, lower end of hang plate, specular is fixed with a pair baffle plate 37, overlaps workpiece unexpectedly depart from material road to avoid tooth.
To reply gear mechanism handgrip position material road outer radial be fixedly mounted with a propelling movement cylinder 24, this propelling movement cylinder by material road in tooth cover workpiece after super-interval cylinder time-out interval, be pushed to handgrip position, with complete this tooth cover workpiece to tooth operation.
Two chamfering tools are covered with a debris removal cover 14, and the structure of this debris removal cover is see Figure 13,14,15,16,17,18, and be made up of upper box body 40, middle part casing 41 and bottom casing 42, upper box body, middle part casing and bottom casing adopt inner mode of communicating.Be shaped with two symmetrical inclination cutter passages 39 in the corresponding chamfering tool side of upper box body, be convenient to plug-in mounting two cutters; Be shaped with handpiece channel 43 in the corresponding artifact-driven head side of upper box body, be convenient to plug-in mounting artifact-driven head; Cutter passage and handpiece channel and cutter and artifact-driven head are sealed and matched, and be fixed with handle 38, so that adopt portable mode to be taken out by debris removal cover change cutter, or remove iron filings residual in casing in upper box body upper surface; In the casing of middle part, symmetry is fixed with under being tilted to two hang plates 44, so that iron filings deadweight is fallen; To the dedusting of iron filings, collection when debris removal cover can ensure chamfer machining, improve processing environment.
Operation principle of the present utility model is:
Tooth cover workpiece is sent into from the material road of last orthoscopic feed mechanism, be pushed into cylinder top one by one in order through super-interval cylinder to shift onto below the handgrip that promotes below pedestal and locate, then captured by handgrip and promote, move to wriggle and adopt wriggling oscillating cylinder to carry out tooth to toothholder; After tooth, being exchanged after upset picked up by manipulator by material loading is arranged on artifact-driven head, artifact-driven head enters in debris removal cover under the rotation of direct driving motor and the driving of straight line cylinder, in debris removal cover, by the chamfering tool of two specular, synchronous symmetrical chamfering is carried out to the tip surface that tooth overlaps workpiece, iron filings under cutting are collected by debris removal cover, the tooth cover processed is return by artifact-driven head and is exchanged manipulator by material loading again and takes off, and location is placed into detection station; Detect after station detects, qualified products are transmitted back to material road by promoting cylinder above turnover panel, and substandard product then can make turnover panel dig, and promote substandard product to enter in turnover panel and to be sent by the waste product material road that it is communicated with by promotion cylinder.Qualified tooth cover workpiece is transplanted on tooth cover turn-over mechanism through punishment in advance road, again via behind cylinder interval, interval, fork tooth by radial direction in the rotation Cha Liao road of oscillating cylinder and overlap workpiece, turnback is turned over through rotation cylinder, tooth is made to overlap the another side of workpiece upward, tooth cover workpiece level is placed on the material road of a rear straight line feed mechanism, and carry out the chamfer machining of another side thus, the working method of a rear beveler is identical with last beveler.
Claims (7)
1. a gear sleeve of automobile synchronizer Double-side rounding Continuous maching system, is characterized in that: the linear feeding mechanism that the beveler and that this system is processed by two identical double-poles crosses in two beveler processing stations is formed, a beveler row arranged side by side of two identical double-pole processing is arranged, each beveler comprises the cutter carrying out chamfer machining, artifact-driven head and to gear mechanism, the center line at two cutter places is just arranged artifact-driven head, arrange gear mechanism at the operation position, front end of artifact-driven head, artifact-driven head is arranged on headstock, each beveler is all in artifact-driven head front, on fuselage between two cutter rears, level is fixedly mounted with an orthoscopic feed mechanism, each linear feeding mechanism drives the driving-belt in material road to rotate by a drive motors, one tooth cover turn-over mechanism is installed between this Liang Ge linear feeding mechanism, one propelling movement cylinder is being fixedly mounted with to the material road outer radial of reply gear mechanism.
2. gear sleeve of automobile synchronizer Double-side rounding Continuous maching system according to claim 1, it is characterized in that: described to gear mechanism by flat-removing air cyclinder, translation stages, lifting cylinder, lifting pedestal, handgrip and wriggle toothholder is formed, translation stages is arranged on the fuselage of beveler by guide rail guiding, drives translation stages horizontal movement by flat-removing air cyclinder, promoting pedestal is arranged in translation stages by guide rail guiding, lifting pedestal is driven to move both vertically by lifting cylinder, in the lower bottom promoting pedestal, handgrip is installed, this handgrip is picked up tooth cover workpiece and is passed through to promote, move to wriggling that side is fixedly mounted with on toothholder, this wriggling controls tooth the wriggling oscillating cylinder that toothholder is installed by its lower end, be arranged on artifact-driven head to the tooth cover after tooth after material loading exchange manipulator is picked up, material loading exchanges manipulator and is arranged on column, and on column, carry out upper and lower displacement and self upset, column is packed in horizontal displacement on the translating rails of fuselage one.
3. gear sleeve of automobile synchronizer Double-side rounding Continuous maching system according to claim 1, is characterized in that: coaxially install a direct driving motor by bearing assembly in described artifact-driven headstock, and this direct driving motor driving machine headstock rotates; Coaxial installation one straight line cylinder in the headstock of direct driving motor inboard, coaxial installation one push rod in this straight line cylinder, top, this push rod outer end dress artifact-driven head, realize artifact-driven head thus by push rod pushing tow tooth cover workpiece to tool sharpening position, and drive artifact-driven head rotating to realize overlapping tooth the chamfer machining of workpiece by direct driving motor.
4. gear sleeve of automobile synchronizer Double-side rounding Continuous maching system according to claim 3, it is characterized in that: the fuselage below artifact-driven head is provided with a detection station, be designed with a turnover panel between this detection station and material road, this turnover panel is communicated with a waste product material road.
5. gear sleeve of automobile synchronizer Double-side rounding Continuous maching system according to claim 1, it is characterized in that: described linear feeding mechanism drives the driving-belt in material road to rotate by a drive motors, the equal radial direction in side, material road at each operation position, beveler artifact-driven head front end is provided with a pair interval cylinder, the plunger interval of these two interval cylinders is stretched out, and carries out tooth, processing gear mechanism to enable tooth cover workpiece enter one by one.
6. gear sleeve of automobile synchronizer Double-side rounding Continuous maching system according to claim 1, it is characterized in that: described tooth cover turn-over mechanism is pitched by rotation cylinder, rotation and formed, in rotation Cha Liao road, radial direction forks tooth cover workpiece, after rotation cylinder turns over turnback, tooth is made to overlap the another side of workpiece upward, tooth cover workpiece level is placed on the material road of a rear straight line feed mechanism, a hang plate is installed in the front end in Hou Yiliao road, and on the material road of the both sides, lower end of hang plate, specular is fixed with a pair baffle plate.
7. gear sleeve of automobile synchronizer Double-side rounding Continuous maching system according to claim 1, it is characterized in that: described two chamfering tools are covered with a debris removal cover, this debris removal cover is made up of upper box body, middle part casing and bottom casing, and upper box body, middle part casing and bottom casing adopt inner mode of communicating; Two symmetrical inclination cutter passages are shaped with in the corresponding chamfering tool side of upper box body, handpiece channel is shaped with in the corresponding artifact-driven head side of upper box body, cutter passage and handpiece channel and cutter and artifact-driven head are sealed and matched, and are fixed with handle in upper box body upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629511.XU CN204843165U (en) | 2015-08-19 | 2015-08-19 | Two -sided chamfer continuous processing system of automobile synchronization regulator gear sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629511.XU CN204843165U (en) | 2015-08-19 | 2015-08-19 | Two -sided chamfer continuous processing system of automobile synchronization regulator gear sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN204843165U true CN204843165U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520629511.XU Expired - Fee Related CN204843165U (en) | 2015-08-19 | 2015-08-19 | Two -sided chamfer continuous processing system of automobile synchronization regulator gear sleeve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149698A (en) * | 2015-08-19 | 2015-12-16 | 天津市达鑫精密机械设备有限公司 | Double-face chamfering continuous machining system for gear sleeve of vehicle synchronizer |
| CN105965036A (en) * | 2016-06-29 | 2016-09-28 | 宁夏共享机床辅机有限公司 | Stock bin with overturning function and angle phase correction function |
| CN108687658A (en) * | 2018-03-23 | 2018-10-23 | 上海先德机械工程有限公司 | Workpiece machining apparatus |
| CN114260735A (en) * | 2022-01-13 | 2022-04-01 | 东莞市固达机械制造有限公司 | Quick positioning chamfering machine |
-
2015
- 2015-08-19 CN CN201520629511.XU patent/CN204843165U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149698A (en) * | 2015-08-19 | 2015-12-16 | 天津市达鑫精密机械设备有限公司 | Double-face chamfering continuous machining system for gear sleeve of vehicle synchronizer |
| CN105149698B (en) * | 2015-08-19 | 2017-04-19 | 天津市达鑫精密机械设备有限公司 | Double-face chamfering continuous machining system for gear sleeve of vehicle synchronizer |
| CN105965036A (en) * | 2016-06-29 | 2016-09-28 | 宁夏共享机床辅机有限公司 | Stock bin with overturning function and angle phase correction function |
| CN105965036B (en) * | 2016-06-29 | 2018-08-24 | 宁夏共享机床辅机有限公司 | It is a kind of having both overturning, the feed bin that angle is mutually corrected |
| CN108687658A (en) * | 2018-03-23 | 2018-10-23 | 上海先德机械工程有限公司 | Workpiece machining apparatus |
| CN114260735A (en) * | 2022-01-13 | 2022-04-01 | 东莞市固达机械制造有限公司 | Quick positioning chamfering machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20170819 |