CN205414453U - Lathe work special fixture of accurate graduation - Google Patents
Lathe work special fixture of accurate graduation Download PDFInfo
- Publication number
- CN205414453U CN205414453U CN201620196962.3U CN201620196962U CN205414453U CN 205414453 U CN205414453 U CN 205414453U CN 201620196962 U CN201620196962 U CN 201620196962U CN 205414453 U CN205414453 U CN 205414453U
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- chuck body
- workpiece
- clamp jaw
- bevel gear
- screw mandrel
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Abstract
The utility model discloses a lathe work special fixture of accurate graduation belongs to the lathe work special fixture among the machining equipment technical field, and its aim at provides the lathe work special fixture of accurate graduation of a multiple spot atress and applicable work piece in the multiple size of centre gripping. Its technical scheme does: including the anchor clamps body, the X -shape spout has been seted up on the anchor clamps body, all be provided with the clamp jaw in the every spout of X -shape spout, the back of anchor clamps body is equipped with jack catch actuating mechanism, and jack catch actuating mechanism includes big bevel gear and lead screw, and big bevel gear installs on the anchor clamps body, and the lead screw is provided with the multiunit, and every cocainine pole pair answers the position of clamp jaw to set up, and the threaded hole that establishes at the clamp jaw of lead screw cover and with clamp jaw threaded connection, the one side that is close to big bevel gear on the lead screw is provided with little bevel gear, the little bevel gear on the multiunit lead screw all meshes with big bevel gear. The utility model is suitable for an anchor clamps that lathe work used.
Description
Technical field
This utility model belongs to machining equipment technical field, relates to the turnery processing special fixture of a kind of accurate indexing.
Background technology
Lathe process is the some of machining.Lathe process mainly carries out turnery processing with lathe tool to the workpiece rotated.Lathe can also be used with drill bit, reamer, reamer, screw tap, screw die and checkering tool etc. process accordingly.Lathe be mainly used in processing axle, dish, set and other there is the workpiece of rotary surface, be that machine-building and repair factory use a widest class machine tooling.
Workpiece rotates, and the machining of straight line or curve movement planar made by lathe tool.Turning is typically carried out on lathe, in order to process inside and outside circle cylinder, end face, taper seat, forming face and the screw thread etc. of workpiece.During turning inside and outside circle cylinder, lathe tool moves along the direction being parallel to workpiece rotation axis.When turning end or cut-out workpiece, lathe tool is along the direction horizontal movement being perpendicular to workpiece rotation axis.If the movement locus of lathe tool becomes an oblique angle with workpiece rotation axis, taper seat just can be processed.The revolving body surface that turning shapes, can use forming-tool general laws or point of a knife method of loci.During turning, workpiece is rotated primary movement by machine tool chief axis；Feed motion made by the lathe tool being clamped on knife rest.
Various frock clamps are applied widely in mechanical manufacturing field; due in lathe operation; workpiece must be clamped and just can be processed; traditional fixture is typically all scroll chuck, only three claws, three stress points; and these three stress point is in one plane; therefore can only clamp the workpiece with symmetrical structure, clamping not strongly often occurs in the workpiece for abnormity, the situation that workpiece drops.The utility model patent of Application No. 201520234587.2 discloses a kind of turning attachment, including " u "-shaped fixed mount, lathe clamping part, the first supporting rod, fixed slip bar, fixed disk and the second supporting rod.Two fixed disks of turning attachment are equivalent to two claws, three the second supporting rods are had on each fixed disk, during clamping workpiece, six stress points can be provided, and stress point is not or not a plane, is distributed in the space of three-dimensional, for special-shaped asymmetric workpiece, can clamp according to the depth position that each position of workpiece is different, uniform force, fixation will not fall off.
But, when workpiece being clamped by six stress points, it is impossible to effectively ensure that six stress points all act on workpiece, thus this turning attachment is relatively low to the clamping effect of workpiece.Additionally, workpiece is clamped by existing turning attachment generally by three claws, various sizes of workpiece is clamped by three removable realizations of claw；Three stress points act on workpiece, and workpiece is less with the application point of fixture, the force limited between fixture and workpiece so that fixture is relatively low to the clamping effect of workpiece.And existing workpiece is when carrying out turnery processing, most of workpiece are both needed on its end face uniformly process multiple grooves or hole, so that workpiece is indexed, and prior art makes substantially to use and manually measures indexing carrying out indexing, making the indexing effect indexing special tooling relatively low, indexing accuracy is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of multiple spot stress and is applicable to clamp the turnery processing special fixture of precisely indexing of workpiece of sizes.
For achieving the above object, the technical solution of the utility model is:
The turnery processing special fixture of a kind of accurate indexing, including chuck body, in described chuck body, the center circumference around chuck body is evenly equipped with some interior reticules, and the line number of described interior reticule is different from the line number of the outer reticule on the chuck of lathe；Offering X-type chute in described chuck body, described X-type chute includes that at least four chutes, described chute are all intersected in the center of chuck body；Being provided with clamp jaw in every chute of described X-type chute, described clamp jaw can slide in chute and realize the clamping of workpiece；The back side of described chuck body is provided with the claw drive mechanism for driving clamp jaw, described claw drive mechanism includes bevel gear wheel and screw mandrel, described bevel gear wheel be installed in chuck body and around bevel gear wheel axis rotate, described screw mandrel is provided with many groups, often the position of group screw mandrel correspondence clamp jaw is arranged, and in described screw rod bushing is located at the screwed hole of clamp jaw and threaded with clamp jaw, on described screw mandrel, the side near bevel gear wheel is provided with bevel pinion, and the bevel pinion on many group screw mandrels all engages with bevel gear wheel.
Preferably, described clamp jaw includes corpus unguis, the end face of described corpus unguis is notch cuttype, the bottom surface of described corpus unguis connects contiguous block, it is provided with movable block below described corpus unguis, described movable block is connected with wire rod thread and can move on screw mandrel, the top of described movable block caves inward formation for the groove placing contiguous block, described movable block is provided with screw rod in rotary moving, the two ends of described screw rod in rotary moving are positioned at the through hole on movable block top, threaded with the contiguous block of the groove being positioned at contiguous block in the middle part of described screw rod in rotary moving.
Preferably, the sidewall of described chuck body is additionally provided with the workpiece pressuring clamping device for workpiece pressing.
Preferably, described workpiece pressuring clamping device includes that hydraulic unit driver and swing arm, described hydraulic unit driver include two groups, and two groups of hydraulic unit drivers are respectively arranged on the relative two sides of chuck body；The output shaft end of described hydraulic unit driver connects has connecting rod, the two ends of described connecting rod to be all hinged with connecting rod；The swing arm often organizing workpiece pressuring clamping device arranges two, and the bottom of two swing arms is hingedly connected to the two ends of chuck body side, the other end of the connecting rod at described connecting rod two ends middle part with the swing arm being positioned at chuck body two ends correspondence position respectively is articulated and connected；It is connected between swing arm end and the swing arm of chuck body opposite side corresponding position of certain side in described chuck body and has the gangbar for workpiece pressing.
Compared with prior art, the beneficial effects of the utility model are:
In this utility model, by arranging some interior reticules around its central distribution in chuck body, the chuck of lathe arranges some outer reticules around its central distribution, and the line number of interior reticule is different from the line number of outer reticule, thus the number of degrees represented between reticule in two are different between two outer reticules the represented number of degrees, its zero graduation line position at place on chuck when rotating thereby through this number of degrees difference and chuck body, the graduation mark overlapped with chuck high scale line in chuck body can calculate the angle that chuck body rotates, thus realize the accurate indexing of the workpiece in chuck body i.e. chuck body, the efficiency of indexing is high, the precision of indexing is high；Cross chute is offered in chuck body, X-type chute includes at least four chutes, it is provided with clamp jaw in every chute of cross chute, clamp jaw can slide in chute, realize the clamping to workpiece, owing to arranging at least four chutes, the stress point at least four on workpiece, thus the contact point of workpiece and fixture, improve fixture to the clamping efficiency of workpiece and clamping effect；Owing to clamp jaw can move in chute, thus the spacing between each clamp jaw can be changed, thus be applicable to clamp various sizes of workpiece；Claw drive mechanism for driving clamp jaw to move includes being positioned at the bevel gear wheel of center, bevel gear wheel be circumferentially with screw mandrel, the position of screw mandrel, quantity and the position of clamp jaw, quantity is suitable, and clamp jaw is set on the screw mandrel of correspondence position, both realize threaded, the bevel pinion of screw mandrel end engages with bevel gear wheel, bevel gear wheel rotates will drive bevel pinion, screw mandrel rotates, screw mandrel rotates and will drive clamp jaw the moving axially along screw mandrel on screw mandrel, thus realize moving and stepping up or unclamp workpiece of clamp jaw, make to organize clamp jaw more and be capable of linkage, improve the mobile efficiency of clamp jaw, can be convenient, efficiently workpiece is carried out clamping.The corpus unguis of this clamp jaw is connected with movable block by contiguous block, screw rod in rotary moving, contiguous block is connected with screw flight in rotary moving, rotating screw rod in rotary moving can make contiguous block on screw rod in rotary moving move along the axis direction of screw rod in rotary moving, the movement of contiguous block can drive corpus unguis to move together, thus realize the movement of single clamp jaw, each clamp jaw when clamping workpiece is made all can closely to act on workpiece, improve the active force between special fixture and workpiece, improve clamping stability and the safety of special fixture.In the both sides of chuck body, workpiece pressuring clamping device is set, the hydraulic unit driver of workpiece pressuring clamping device can drive the connecting rod on its output shaft to move up and down, the i.e. swing arm of drivening rod is rotated by moving up and down of connecting rod, swing arm rotates and the gangbar realized between swing arm is moved up and down above chuck body, it is achieved to the compression of workpiece, unclamp；Workpiece can be clamped by clamp jaw, gangbar, be compressed by this special function, the active force between workpiece and special fixture is made to increase, improve the special fixture clamping active force to workpiece, effectively prevent workpiece from sliding on special fixture, user is caused personal injury by the special fixture that even flies out, thus increases substantially the security performance of special fixture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of claw drive mechanism in this utility model；
Fig. 3 is the structural representation of claw in this utility model；
Fig. 4 is the structural representation of workpiece pressuring clamping device in this utility model；
Fig. 5 is the scheme of installation of workpiece pressuring clamping device in this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described further:
The turnery processing special fixture of a kind of accurate indexing, this special fixture is used in lathe turning and adds and man-hour workpiece carries out the special fixture of clamping.This special fixture includes chuck body 1, and this chuck body 1 can be square structure, it is also possible to be cylindrical structure, and in the present embodiment, this chuck body 1 selects cube structure.Being provided with some interior reticules 9 in chuck body 1, some interior reticules 9 are circumferentially distributed centered by the center of chuck body 1.This interior reticule 9 supporting uses, the outer reticule being also arranged on the chuck of lathe, and the line number of interior reticule 9 is different from the line number of outer reticule.Difference due to line number, thus the number of degrees represented between reticule 9 in two are different between two outer reticules the represented number of degrees, the graduation mark that when rotating thereby through this number of degrees difference and chuck body 1, its zero graduation line overlaps with chuck high scale line in the position at place, chuck body 1 on chuck can calculate the angle that chuck body rotates, thus realize the accurate indexing of the workpiece in chuck body 1 i.e. chuck body 1, the efficiency of indexing is high, and the precision of indexing is high.
Offering X-type chute 2 in this chuck body 1, this X-type chute 2 at least includes four chutes, central axial uniform around chuck body 1 of a plurality of chute, and a plurality of chute is all intersected in the center of chuck body 1.It is provided with clamp jaw 3 in every chute of this X-type chute 2, and each clamp jaw 3 all can in corresponding chute slidably.The back side of chuck body 1 is provided with claw drive mechanism, and this claw drive mechanism can be used for driving this clamp jaw 3, by the mobile realization of clamp jaw 3 clamping to workpiece.This claw drive mechanism includes the structure using feed screw nut pair, and it includes bevel gear wheel 6 and screw mandrel 4, and this bevel gear wheel 6 is arranged on the back side of chuck body 1, and can be freely rotatable in chuck body 1.This screw mandrel 4 is set to four groups, and often the position of the corresponding clamp jaw 3 of group screw mandrel 4 is arranged.Screw mandrel 4 is threadeded with the clamp jaw 3 of corresponding position, and screw mandrel 4 is threadeded with clamp jaw 3 after the screwed hole on clamp jaw 3.Thus when screw mandrel 4 rotates, axis along screw mandrel 4 on screw mandrel 4 is moved by the clamp jaw 3 on this screw mandrel 4.The spaced 90 ° of tailing edge bevel gear wheels 6 of four bevel pinions 5 being provided with on bevel pinion 5, and four groups of screw mandrels 4 near the side of bevel gear wheel 6 on every screw mandrel 4 circumferentially disposed, and four bevel pinions 5 all engage with bevel gear wheel 6.
Claw drive mechanism for driving clamp jaw 3 to move includes being positioned at the bevel gear wheel 6 of center, bevel gear wheel 6 be circumferentially with screw mandrel 4, the position of screw mandrel 4, quantity and the position of clamp jaw 3, quantity is suitable, and clamp jaw 3 is set on the screw mandrel 4 of correspondence position, both realize threaded, the bevel pinion 5 of screw mandrel 4 end engages with bevel gear wheel 6, bevel gear wheel 6 rotates and will drive bevel pinion 5, screw mandrel 4 rotates, screw mandrel 4 rotates and will drive clamp jaw 3 the moving axially along screw mandrel 4 on screw mandrel 4, thus realize moving and stepping up or unclamp workpiece of clamp jaw 3, make to organize clamp jaw 3 more and be capable of linkage, improve the mobile efficiency of clamp jaw 3, can be convenient, efficiently workpiece is carried out clamping
As the presently preferred embodiments, on the basis of such scheme, this clamp jaw 3 includes corpus unguis 31, movable block 34 and screw rod in rotary moving 33, and this movable block 34 is threadeded with above-mentioned screw mandrel 4, when screw mandrel 4 rotates movable block 34 can on screw mandrel 4 moving axially along screw mandrel 4.Groove is offered on the end face of this movable block 34.This claw is placed on movable block 34, and bottom claw, connection has contiguous block 32, and this contiguous block 32 is placed directly in the groove of movable block 34 end face.Offering through hole on the sidewall of this movable block 34 upper grooves, this screw rod 33 in rotary moving is installed on movable block 34 through the through hole of movable block 34 upper grooves both sides；Additionally, this screw rod 33 in rotary moving is also threadeded with the contiguous block 32 in groove, when screw rod 33 in rotary moving rotates, the contiguous block 32 threadeded with screw rod 33 in rotary moving will move on screw rod 33 in rotary moving, finally realize the movement of corpus unguis 31.
The corpus unguis 31 of this clamp jaw 3 is by contiguous block 32, screw rod 33 in rotary moving is connected with movable block 34, contiguous block 32 is threadeded with screw rod 33 in rotary moving, rotating screw rod 33 in rotary moving can make contiguous block 32 on screw rod 33 in rotary moving move along the axis direction of screw rod 33 in rotary moving, the movement of contiguous block 32 can drive corpus unguis 31 to move together, thus realize the movement of single clamp jaw 3, each clamp jaw 3 when clamping workpiece is made all can closely to act on workpiece, improve the active force between special fixture and workpiece, improve clamping stability and the safety of special fixture.
As the presently preferred embodiments, on the basis of such scheme, the sidewall of this chuck body 1 is additionally provided with the workpiece pressuring clamping device 7 for workpiece pressing.This workpiece pressuring clamping device 7 includes hydraulic unit driver 71 and swing arm 75, this hydraulic unit driver 71 is arranged at the medium position of chuck body 1 side, owing to being provided with two groups of workpiece pressuring clamping devices 7, thus just including two hydraulic unit drivers 71, two hydraulic unit drivers 71 are respectively arranged on the left and right of working day or the side of front and back both sides.The output shaft end of this hydraulic unit driver 71 connects connecting rod 72, and this connecting rod 72 is parallel with chuck body 1, and the medium position of this connecting rod 72 is connected with the output shaft of hydraulic unit driver 71, and the output shaft being hydraulically operated device 71 drives it to move up and down.The two ends of connecting rod 72 are all hinged with connecting rod 73, and two connecting rods 73 can be freely rotatable around respective jointed shaft in same connecting rod 72.Often group workpiece pressuring clamping device 7 includes two swing arms 75, the swing arm 75 of same group of workpiece pressuring clamping device 7 is positioned at the both sides of chuck body 1 same side, and the bottom of this swing arm 75 is hinged on the side of chuck body 1, make the swing arm 75 can be freely rotatable on the side of chuck body 1.To should the end of connecting rod 73 of swing arm 75 position be articulated and connected in the middle part of swing arm 75 hinged in chuck body 1 and connecting rod 72, being connected between the end of swing arm 75 and the swing arm 75 of chuck body 1 opposite side corresponding position has gangbar 76.
In the both sides of chuck body 1, workpiece pressuring clamping device 7 is set, the hydraulic unit driver 71 of workpiece pressuring clamping device 7 can drive the connecting rod 72 on its output shaft to move up and down, drivening rod 73 i.e. swing arm 75 is rotated by moving up and down of connecting rod 72, swing arm 75 rotates and the gangbar 76 realized between swing arm 75 is moved up and down above chuck body 1, it is achieved to the compression of workpiece, unclamp；Workpiece can be clamped by clamp jaw 3, gangbar 76, be compressed by this special function, the active force between workpiece and special fixture is made to increase, improve the special fixture clamping active force to workpiece, effectively prevent workpiece from sliding on special fixture, user is caused personal injury by the special fixture that even flies out, thus increases substantially the security performance of special fixture.
Claims (5)
1. the turnery processing special fixture of an accurate indexing, including chuck body (1), it is characterized in that: in described chuck body (1), the center circumference around chuck body (1) is evenly equipped with some interior reticules (9), and the line number of described interior reticule (9) is different from the line number of the outer reticule on the chuck of lathe；Offering X-type chute (2) in described chuck body (1), described X-type chute (2) includes that at least four chutes, described chute are all intersected in the center of chuck body (1)；Being provided with clamp jaw (3) in every chute of described X-type chute (2), described clamp jaw (3) can slide in chute and realize the clamping of workpiece；The back side of described chuck body (1) is provided with the claw drive mechanism for driving clamp jaw (3), described claw drive mechanism includes bevel gear wheel (6) and screw mandrel (4), described bevel gear wheel (6) is installed on upper and around bevel gear wheel (6) the axis of chuck body (1) and rotates, described screw mandrel (4) is provided with many groups, the position often organizing the corresponding clamp jaw (3) of screw mandrel (4) is arranged, and in described screw mandrel (4) is set in the screwed hole of clamp jaw (3) and threaded with clamp jaw (3), the upper side near bevel gear wheel (6) of described screw mandrel (4) is provided with bevel pinion (5), the bevel pinion (5) organized on screw mandrel (4) all engages with bevel gear wheel (6) more.
nullThe turnery processing special fixture of a kind of accurate indexing the most as claimed in claim 1，It is characterized in that: described clamp jaw (3) includes corpus unguis (31)，The end face of described corpus unguis (31) is notch cuttype，The bottom surface of described corpus unguis (31) connects contiguous block (32)，Described corpus unguis (31) lower section is provided with movable block (34)，Described movable block (34) is threadeded with screw mandrel (4) and can be upper mobile at screw mandrel (4)，The top of described movable block (34) caves inward formation for the groove placing contiguous block (32)，Described movable block (34) is provided with screw rod in rotary moving (33)，The two ends of described screw rod in rotary moving (33) are positioned at the through hole on movable block (34) top，Threaded with the contiguous block (32) of the groove being positioned at contiguous block (32) in the middle part of described screw rod in rotary moving (33).
The turnery processing special fixture of a kind of accurate indexing the most as claimed in claim 2, it is characterised in that: it is additionally provided with the workpiece pressuring clamping device (7) for workpiece pressing on the sidewall of described chuck body (1).
The turnery processing special fixture of a kind of accurate indexing the most as claimed in claim 1, it is characterised in that: it is additionally provided with the workpiece pressuring clamping device (7) for workpiece pressing on the sidewall of described chuck body (1).
5. the turnery processing special fixture of a kind of accurate indexing as described in claim 3 or 4, it is characterized in that: described workpiece pressuring clamping device (7) includes hydraulic unit driver (71) and swing arm (75), described hydraulic unit driver (71) includes two groups, and two groups of hydraulic unit drivers (71) are respectively arranged on the relative two sides of chuck body (1)；The output shaft end of described hydraulic unit driver (71) connects has connecting rod (72), the two ends of described connecting rod (72) to be all hinged with connecting rod (73)；The swing arm (75) often organizing workpiece pressuring clamping device (7) arranges two, and the bottom of two swing arms (75) is hingedly connected to the two ends of chuck body (1) certain side, the other end of the connecting rod (73) at described connecting rod (72) two ends middle part with the swing arm (75) being positioned at chuck body (1) two ends correspondence position respectively is articulated and connected；It is connected, between swing arm (75) end and the swing arm (75) of chuck body (1) opposite side corresponding position of described chuck body (1) certain side upper, the gangbar (76) having for workpiece pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196962.3U CN205414453U (en) | 2016-03-15 | 2016-03-15 | Lathe work special fixture of accurate graduation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196962.3U CN205414453U (en) | 2016-03-15 | 2016-03-15 | Lathe work special fixture of accurate graduation |
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| Publication Number | Publication Date |
|---|---|
| CN205414453U true CN205414453U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620196962.3U Expired - Fee Related CN205414453U (en) | 2016-03-15 | 2016-03-15 | Lathe work special fixture of accurate graduation |
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| CN (1) | CN205414453U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317949A (en) * | 2018-12-20 | 2019-02-12 | 常州神力电机股份有限公司 | A kind of wind turbine iron core bracket press-loading device |
| CN110002131A (en) * | 2019-04-26 | 2019-07-12 | 中铁第四勘察设计院集团有限公司 | A kind of high-speed rail logistics plant transport machine for collecting load |
| CN110040372A (en) * | 2019-04-25 | 2019-07-23 | 中铁第四勘察设计院集团有限公司 | A kind of intelligent machine for collecting load being applicable in high-speed rail vehicle transport |
| CN110756837A (en) * | 2019-11-08 | 2020-02-07 | 苏州新派特信息科技有限公司 | Four-jaw chuck clamp for high-precision numerical control machine tool |
| CN111112666A (en) * | 2020-02-12 | 2020-05-08 | 王康康 | Metal cutting machine tool capable of being clamped quickly |
| CN111774906A (en) * | 2020-07-09 | 2020-10-16 | 横店集团英洛华电气有限公司 | Workpiece positioning self-rotation mechanism |
-
2016
- 2016-03-15 CN CN201620196962.3U patent/CN205414453U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317949A (en) * | 2018-12-20 | 2019-02-12 | 常州神力电机股份有限公司 | A kind of wind turbine iron core bracket press-loading device |
| CN110040372A (en) * | 2019-04-25 | 2019-07-23 | 中铁第四勘察设计院集团有限公司 | A kind of intelligent machine for collecting load being applicable in high-speed rail vehicle transport |
| CN110002131A (en) * | 2019-04-26 | 2019-07-12 | 中铁第四勘察设计院集团有限公司 | A kind of high-speed rail logistics plant transport machine for collecting load |
| CN110756837A (en) * | 2019-11-08 | 2020-02-07 | 苏州新派特信息科技有限公司 | Four-jaw chuck clamp for high-precision numerical control machine tool |
| CN111112666A (en) * | 2020-02-12 | 2020-05-08 | 王康康 | Metal cutting machine tool capable of being clamped quickly |
| CN111112666B (en) * | 2020-02-12 | 2020-10-30 | 柳州市万仓机械制造有限公司 | Metal cutting machine tool capable of being clamped quickly |
| CN111774906A (en) * | 2020-07-09 | 2020-10-16 | 横店集团英洛华电气有限公司 | Workpiece positioning self-rotation mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170315 |
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| CF01 | Termination of patent right due to non-payment of annual fee |