CN205415073U - Small and exquisite automatic head that extends of high speed of structure - Google Patents
Small and exquisite automatic head that extends of high speed of structure Download PDFInfo
- Publication number
- CN205415073U CN205415073U CN201620199739.4U CN201620199739U CN205415073U CN 205415073 U CN205415073 U CN 205415073U CN 201620199739 U CN201620199739 U CN 201620199739U CN 205415073 U CN205415073 U CN 205415073U
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- China
- Prior art keywords
- pull bar
- extension head
- taper shank
- casing
- main shaft
- 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.)
- Withdrawn - After Issue
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- 238000005242 forging Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 210000000078 claw Anatomy 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Forging (AREA)
Abstract
The utility model discloses a small and exquisite automatic head that extends of high speed of structure includes main blind rivet, the teper -shank, box and install first main shaft of extension and the drive mechanism in the box, the top at the teper -shank is installed to main blind rivet, drive mechanism's input links to each other with the teper -shank, drive mechanism's output links to each other with the first main shaft of extension, extend and install a plurality of groups bearing between the inner wall of first main shaft and box, extend the pull rod that links to each other about being provided with in the first main shaft in proper order, the pole of forging a knife, draw claw and cutter blind rivet, it is downthehole that the teper -shank is stretched into to the upper end of pull rod, install a O type sealing washer between pull rod and the teper -shank, be provided with the spring between teper -shank and the pull rod, the top and the teper -shank of spring offset, the bottom and the pull rod of spring offset, the dish spring is installed in the outside of pull rod, drive mechanism includes engaged with internal gear and external gear, internal gear an organic whole sets up in the bottom of teper -shank, the external gear passes through rectangular spline with the first main shaft of extension and is connected, the utility model discloses is the structure small and exquisite, compact, can be 4000 high rotational speed processing under the 5000rpm.
Description
Technical field
The utility model relates to machine tool accessories Extension Head technical field, the High-Speed Automatic Extension Head of a kind of compact structure.
Background technology
Traditional automatic Extension Head, its Extension Head taper shank all connects with Extension Head main shaft, and the situation of bias can be there is in Extension Head main shaft and machine tool chief axis, cause existing between connector (such as tapered sleeve) and the main shaft key block of transmission main shaft power relatively sliding, causing the generation of the situations such as driving member heating, abrasion, the Design of Rotation of usual this automatic Extension Head is within 2000rpm.In addition, the design that conventional Extension Head lengthens overstriking is relatively easy to, but once Extension Head overstriking, often it is difficult to extend in the hole that some apertures are less when processing workpiece, and the Extension Head lengthened can take again more processing stroke, therefore, for making Extension Head structure smaller and more exquisite, lathe manufacturer can will extend over head and design the shortest but also thin.Existing automatic Extension Head often cannot take into account high rotating speed and small size.
Summary of the invention
Technical problem to be solved in the utility model is: for the deficiencies in the prior art, it is provided that a kind of compact structure, can under 4000-5000rpm high rotating speed processing High-Speed Automatic Extension Head.
nullThe technical scheme that the above-mentioned technical problem of the utility model solution is used is: the High-Speed Automatic Extension Head of a kind of compact structure，Including main blind rivet、Taper shank、Casing and the Extension Head main shaft being arranged in described casing and transmission mechanism，The top of described casing is fixed with multiple little blind rivet，Described casing is connected with pull head oil cylinder by described multiple little blind rivet，The top of described casing is fixed with lower chain wheel，Described lower chain wheel is suitable with the upper chain wheel being arranged on ram oil drain pan，Described ram oil drain pan is arranged on the top of described casing，Described main blind rivet is arranged on the top of described taper shank，The described conical surface on taper shank is suitable with tapered bore of machine tool spindle，The input of described transmission mechanism is connected with described taper shank，The output of described transmission mechanism is connected with described Extension Head main shaft，Some groups of bearings are installed between described Extension Head main shaft and the inwall of described casing，The pull bar being connected the most up and down it is provided with in described Extension Head main shaft、Forge a knife bar、Pulling claw and cutter blind rivet，The upper end of described pull bar is stretched in the endoporus of described taper shank，Oneth O RunddichtringO is installed between described pull bar and described taper shank，It is provided with spring between described taper shank and described pull bar，The top of described spring offsets with described taper shank，The bottom of described spring offsets with described pull bar，The outside of described pull bar is provided with disc spring，Described transmission mechanism includes internal gear and the external gear being meshed，Described internal gear is integrally formed at the bottom of described taper shank，Described external gear is connected by rectangular spline with described Extension Head main shaft.
Automatic Extension Head compact structure of the present utility model, compact, can high rotating speed processing under 4000-5000rpm.Automatic Extension Head of the present utility model, transmitting machine tool chief axis moment of torsion to Extension Head main shaft by internal gear and external gear, the most under the action of the spring, taper shank can lower in the height direction float, this Extension Head passes through disc spring force broaching tool, is forged a knife by the machine tool chief axis power of forging a knife.When forging a knife, the decrement of disc spring is about 75%, is capable of the broach force of about 1.2T in the case of grabbing cutter, in the case of ensureing required broach force, reduces the total height of disc spring as far as possible.
The utility model Extension Head is by the pull head oil cylinder pull head on lathe, and is accurately positioned by upper chain wheel and lower chain wheel snapped engagement, it is achieved grappling fixture, automatically pine head automatically.External gear and Extension Head main shaft are connected by rectangular spline, and therefore external gear is concentric with Extension Head main shaft；Internal gear is floating mount, and after installation, the conical surface on taper shank contacts with tapered bore of machine tool spindle, and therefore internal gear and machine tool chief axis are concentric, and machine tool chief axis is high with the concentricity of Extension Head main shaft.But owing to the mismachining tolerance between machine tool chief axis and Extension Head main shaft and peace adjust error inevitable, for this error, can undertake by the backlash between internal gear and external gear and eliminate.Additionally, use internal gear and the mode of external gear transmission power, tooth face hardness is high, contact area is big, the gear that the optional number of teeth is more, adds heating and the wear phenomenon of gear in man-hour, so that the rotating speed of Extension Head rises to 4000-5000rpm reducing Extension Head to greatest extent.
Described pull bar is wholely set with described bar of forging a knife.In the art, normal pulling claw is outsourcing piece, and pulling claw is threaded connection mode and is arranged on and forges a knife on bar, it is bigger that short transverse takies size, and in Extension Head of the present utility model, pull bar and bar of forging a knife use unitary design, can significantly reduce the size of Extension Head short transverse.(see figure 2) as a example by BT50 main shaft, with traditional pull bar compared with bar split-type design of forging a knife, the unitary design that the utility model uses can reduced height size 73.5mm.
The bottom of described taper shank offers cavity, described cavity is connected with the endoporus of described taper shank, the top of described pull bar is stretched into through described cavity in the endoporus of described taper shank, and described spring housing is located on described pull bar and is positioned at described cavity.The bottom of taper shank uses and hollows out formula design, i.e. the bottom at taper shank is offered cavity, is limited in taper shank by spring heights, makes spring the most additionally take Extension Head height dimension, can reduce Extension Head size further.
nullDescribed pull bar includes that one connects the first paragraph pull bar that the diameter arranged does not waits the most successively、Second segment pull bar、3rd section of pull bar、4th section of pull bar、5th section of pull bar and the 6th section of pull bar，Described first paragraph pull bar and the endoporus matched in clearance of described taper shank，A described O RunddichtringO is arranged between described first paragraph pull bar and described taper shank，Described spring housing is located at the outside of described second segment pull bar，At the shaft shoulder of described second segment pull bar, spring pad is installed，Threaded on the 3rd section of described pull bar have nut，Described disc spring is arranged on the outside of described the 4th section pull bar，At the shaft shoulder of the 4th section of described pull bar, disc spring pad is installed，Described disc spring is arranged between described nut and described disc spring pad，The adjustment pad of upper-lower position for adjusting described pulling claw is installed between described disc spring pad and described Extension Head main shaft，The 5th section of described pull bar and the endoporus matched in clearance of described Extension Head main shaft，The 6th section of described pull bar is described bar of forging a knife.In Extension Head of the present utility model, pull bar uses multistage stepped design, first paragraph pull bar and the endoporus matched in clearance of taper shank, sealed by an O RunddichtringO, ensure time air blowing in Extension Head center, air with pressure will not be revealed from the gap between first paragraph pull bar and taper shank, can avoid because of the most not produced adverse effect of machine tool chief axis and Extension Head main shaft simultaneously；Second segment pull bar is mainly used in using to spring centering；5th section of pull bar is for using to the centering of pull bar front end；6th section of pull bar plays bar effect of forging a knife, and is equivalent to pulling claw structural integrity to be designed on pull bar.
The rain visor that the lower edge of described internal gear is convex under being wholely set, the lower section of described external gear is provided with dust cover, the lower section of described dust cover is provided with waterproof ring, described waterproof ring is arranged on described casing, 2nd O RunddichtringO is installed between described waterproof ring and described casing, offering leaking hole on the sidewall of described casing, described leaking hole is near described waterproof ring.Rain visor can make the water flowing to internal gear to flow backwards, the integral waterproofing design constituted in conjunction with dust cover, waterproof ring, the 2nd O RunddichtringO and leaking hole can make the cutting fluid leaked down above Extension Head in process flow to smoothly outside casing through leaking hole, without entering at main shaft bearing.
The top of described casing is provided with the quick connector for introducing cooling water, if offering the dry hole road being connected with described quick connector in described casing, the bottom of described casing is provided with narrow diameter section, annular groove is offered in described narrow diameter section, on described casing, the outside at described annular groove is provided with baffle ring, described baffle ring and described narrow diameter section interference fit, the bottom of described casing is provided with end cap, the nozzle being connected with described annular groove is installed, if described dry hole road is connected with described annular groove on described end cap.During use, cooling water introduces from quick connector, enters in annular groove by hole road, and Bing Jingkong road enters at nozzle, it is achieved the nose effluent functions of Extension Head.Baffle ring and narrow diameter section interference fit, be different from the O RunddichtringO that tradition is general, it is therefore intended that reduce diameter dimension and the height dimension of casing to greatest extent, make Extension Head smaller and more exquisite, more practical.
Described baffle ring and described narrow diameter section are the interference fit of 0.10-0.20mm, to guarantee that cooling down water can effectively seal and non-leakage.
Being provided with anti-lost ring on described casing, described anti-lost ring carries out spacing for fluctuating taper shank.
Compared with prior art, the utility model has the advantage of: the High-Speed Automatic Extension Head compact structure, compact of the compact structure that the utility model provides, can high rotating speed processing under 4000-5000rpm；This Extension Head is by internal gear and external gear transmission machine tool chief axis moment of torsion on Extension Head main shaft, and the most under the action of the spring, taper shank can lower in the height direction float, and this Extension Head passes through disc spring force broaching tool, is forged a knife by the machine tool chief axis power of forging a knife.When forging a knife, the decrement of disc spring is about 75%, is capable of the broach force of about 1.2T in the case of grabbing cutter, in the case of ensureing required broach force, reduces the total height of disc spring as far as possible.
Accompanying drawing explanation
Fig. 1 is the structural representation of automatic Extension Head in embodiment；
The pull bar that Fig. 2 designs for integral type and the bar pull bar with the conventional two-piece design height comparison diagram with bar of forging a knife of forging a knife.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
nullThe High-Speed Automatic Extension Head of the compact structure of embodiment，As shown in the figure，Including main blind rivet 1、Taper shank 2、Casing 3 and the BT50 Extension Head main shaft 4 being arranged in casing 3 and transmission mechanism，The top of casing 3 is fixed with multiple little blind rivet 31，Casing 3 is connected with pull head oil cylinder (not shown) by multiple little blind rivets 31，The top of casing 3 is fixed with lower chain wheel 32，Lower chain wheel 32 is suitable with the upper chain wheel (not shown) being arranged in ram oil drain pan (not shown)，Ram oil drain pan is arranged on the top of casing 3，Main blind rivet 1 is arranged on the top of taper shank 2，The conical surface on taper shank 2 is suitable with machine tool chief axis (not shown) taper hole，The input of transmission mechanism is connected with taper shank 2，The output of transmission mechanism is connected with Extension Head main shaft 4，Some groups of bearings 41 are installed between the inwall of Extension Head main shaft 4 and casing 3，The pull bar 51 being connected the most up and down it is provided with in Extension Head main shaft 4、Forge a knife bar 52、Pulling claw 53 and cutter blind rivet 54，The upper end of pull bar 51 is stretched in the endoporus 21 of taper shank 2，Oneth O RunddichtringO 71 is installed between pull bar 51 and taper shank 2，Spring 22 it is provided with between taper shank 2 and pull bar 51，The top of spring 22 offsets with taper shank 2，The bottom of spring 22 offsets with pull bar 51，The bottom of taper shank 2 offers cavity 23，Cavity 23 is connected with the endoporus 21 of taper shank 2，The top of pull bar 51 is stretched into through cavity 23 in the endoporus 21 of taper shank 2，Spring 22 is set on pull bar 51 and is positioned at cavity 23，Anti-lost ring 33 is installed on casing 3，Anti-lost ring 33 for taper shank 2 fluctuate carry out spacing，The outside of pull bar 51 is provided with disc spring 55，Transmission mechanism includes internal gear 61 and the external gear 62 being meshed，Internal gear 61 is integrally formed at the bottom of taper shank 2，External gear 62 is connected by rectangular spline with Extension Head main shaft 4.
In embodiments above, pull bar 51 is wholely set with bar 52 of forging a knife, as in figure 2 it is shown, with traditional pull bar compared with bar split-type design of forging a knife, the unitary design that the utility model uses can reduced height size 73.5mm.nullPull bar 51 includes that one connects the first paragraph pull bar 511 that the diameter arranged does not waits the most successively、Second segment pull bar 512、3rd section of pull bar 513、4th section of pull bar 514、5th section of pull bar 515 and the 6th section of pull bar 516，First paragraph pull bar 511 and endoporus 21 matched in clearance of taper shank 2，Oneth O RunddichtringO 71 is arranged between first paragraph pull bar 511 and taper shank 2，Spring 22 is set in the outside of second segment pull bar 512，Spring pad 56 is installed at the shaft shoulder of second segment pull bar 512，Threaded on 3rd section of pull bar 513 have nut 57，Disc spring 55 is arranged on the outside of the 4th section of pull bar 514，At the shaft shoulder of the 4th section of pull bar 514, disc spring pad 58 is installed，Disc spring 55 is arranged between nut 57 and disc spring pad 58，The adjustment pad 59 of upper-lower position for adjusting pulling claw 53 is installed between disc spring pad 58 and Extension Head main shaft 4，5th section of pull bar 515 and endoporus 21 matched in clearance of Extension Head main shaft 4，6th section of pull bar 516 is bar 52 of forging a knife.
The rain visor 63 that the lower edge of internal gear 61 is convex under being wholely set, the lower section of external gear 62 is provided with dust cover 64, the lower section of dust cover 64 is provided with waterproof ring 65, waterproof ring 65 is arranged on casing 3,2nd O RunddichtringO 72 is installed between waterproof ring 65 and casing 3, offering leaking hole 34 on the sidewall of casing 3, leaking hole 34 is near waterproof ring 65.
The top of casing 3 is provided with the quick connector 35 for introducing cooling water, if offering the dry hole road 36 being connected with quick connector 35 in casing 3, the bottom of casing 3 is provided with narrow diameter section 37, annular groove 38 is offered in narrow diameter section 37, on casing 3, the outside at annular groove 38 is provided with baffle ring 39, and baffle ring 39 and narrow diameter section 37 are the interference fit of 0.10-0.20mm, and the bottom of casing 3 is provided with end cap 8, the nozzle 81 being connected with annular groove 38 is installed, if dry hole road 36 is connected with annular groove 38 on end cap 8.
Above-mentioned automatic Extension Head is by the pull head oil cylinder pull head on lathe, and is accurately positioned by upper chain wheel and lower chain wheel 32 snapped engagement, it is achieved grappling fixture, automatically pine head automatically；This Extension Head passes through disc spring 55 power broaching tool, being forged a knife by the machine tool chief axis power of forging a knife, when forging a knife, the decrement of disc spring 55 is about 75%, is capable of the broach force of about 1.2T in the case of grabbing cutter, in the case of ensureing required broach force, reduce the total height of disc spring 55 as far as possible.This automatic Extension Head compact structure, compact, can high rotating speed processing under 4000-5000rpm.
Claims (8)
- null1. the High-Speed Automatic Extension Head of a compact structure，Including main blind rivet、Taper shank、Casing and the Extension Head main shaft being arranged in described casing and transmission mechanism，The top of described casing is fixed with multiple little blind rivet，Described casing is connected with pull head oil cylinder by described multiple little blind rivet，The top of described casing is fixed with lower chain wheel，Described lower chain wheel is suitable with the upper chain wheel being arranged on ram oil drain pan，Described ram oil drain pan is arranged on the top of described casing，Described main blind rivet is arranged on the top of described taper shank，The described conical surface on taper shank is suitable with tapered bore of machine tool spindle，The input of described transmission mechanism is connected with described taper shank，The output of described transmission mechanism is connected with described Extension Head main shaft，Some groups of bearings are installed between described Extension Head main shaft and the inwall of described casing，The pull bar being connected the most up and down it is provided with in described Extension Head main shaft、Forge a knife bar、Pulling claw and cutter blind rivet，The upper end of described pull bar is stretched in the endoporus of described taper shank，Oneth O RunddichtringO is installed between described pull bar and described taper shank，It is characterized in that being provided with spring between described taper shank and described pull bar，The top of described spring offsets with described taper shank，The bottom of described spring offsets with described pull bar，The outside of described pull bar is provided with disc spring，Described transmission mechanism includes internal gear and the external gear being meshed，Described internal gear is integrally formed at the bottom of described taper shank，Described external gear is connected by rectangular spline with described Extension Head main shaft.
- The High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 1, it is characterised in that described pull bar is wholely set with described bar of forging a knife.
- The High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 1 and 2, it is characterized in that the bottom of described taper shank offers cavity, described cavity is connected with the endoporus of described taper shank, the top of described pull bar is stretched into through described cavity in the endoporus of described taper shank, and described spring housing is located on described pull bar and is positioned at described cavity.
- nullThe High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 3，It is characterized in that described pull bar includes that one connects the first paragraph pull bar that the diameter arranged does not waits the most successively、Second segment pull bar、3rd section of pull bar、4th section of pull bar、5th section of pull bar and the 6th section of pull bar，Described first paragraph pull bar and the endoporus matched in clearance of described taper shank，A described O RunddichtringO is arranged between described first paragraph pull bar and described taper shank，Described spring housing is located at the outside of described second segment pull bar，At the shaft shoulder of described second segment pull bar, spring pad is installed，Threaded on the 3rd section of described pull bar have nut，Described disc spring is arranged on the outside of described the 4th section pull bar，At the shaft shoulder of the 4th section of described pull bar, disc spring pad is installed，Described disc spring is arranged between described nut and described disc spring pad，The adjustment pad of upper-lower position for adjusting described pulling claw is installed between described disc spring pad and described Extension Head main shaft，The 5th section of described pull bar and the endoporus matched in clearance of described Extension Head main shaft，The 6th section of described pull bar is described bar of forging a knife.
- The High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 1 and 2, it is characterized in that the lower edge of described internal gear be wholely set under convex rain visor, the lower section of described external gear is provided with dust cover, the lower section of described dust cover is provided with waterproof ring, described waterproof ring is arranged on described casing, 2nd O RunddichtringO is installed between described waterproof ring and described casing, offering leaking hole on the sidewall of described casing, described leaking hole is near described waterproof ring.
- The High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 1 and 2, it is characterized in that the top of described casing is provided with the quick connector for introducing cooling water, if offering the dry hole road being connected with described quick connector in described casing, the bottom of described casing is provided with narrow diameter section, annular groove is offered in described narrow diameter section, on described casing, the outside at described annular groove is provided with baffle ring, described baffle ring and described narrow diameter section interference fit, the bottom of described casing is provided with end cap, the nozzle being connected with described annular groove is installed on described end cap, if described dry hole road is connected with described annular groove.
- The High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 6, it is characterised in that described baffle ring and described narrow diameter section are the interference fit of 0.10-0.20mm.
- The High-Speed Automatic Extension Head of a kind of compact structure the most according to claim 1, it is characterised in that be provided with anti-lost ring on described casing, described anti-lost ring carries out spacing for fluctuating taper shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199739.4U CN205415073U (en) | 2016-03-15 | 2016-03-15 | Small and exquisite automatic head that extends of high speed of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199739.4U CN205415073U (en) | 2016-03-15 | 2016-03-15 | Small and exquisite automatic head that extends of high speed of structure |
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| Publication Number | Publication Date |
|---|---|
| CN205415073U true CN205415073U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620199739.4U Withdrawn - After Issue CN205415073U (en) | 2016-03-15 | 2016-03-15 | Small and exquisite automatic head that extends of high speed of structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN205415073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553328A (en) * | 2017-10-31 | 2018-01-09 | 江苏追日汽车同步器有限公司 | A kind of synchro converter ring taper hole clamp |
| CN109773546A (en) * | 2017-11-10 | 2019-05-21 | 深圳市爱贝科精密机械有限公司 | A kind of ball electric spindle |
-
2016
- 2016-03-15 CN CN201620199739.4U patent/CN205415073U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553328A (en) * | 2017-10-31 | 2018-01-09 | 江苏追日汽车同步器有限公司 | A kind of synchro converter ring taper hole clamp |
| CN109773546A (en) * | 2017-11-10 | 2019-05-21 | 深圳市爱贝科精密机械有限公司 | A kind of ball electric spindle |
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Granted publication date: 20160803 Effective date of abandoning: 20240104 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20240104 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |