CN208840544U - A kind of fixed device of thin-walled parts aeroelasticity with threaded hole - Google Patents
A kind of fixed device of thin-walled parts aeroelasticity with threaded hole Download PDFInfo
- Publication number
- CN208840544U CN208840544U CN201821702397.9U CN201821702397U CN208840544U CN 208840544 U CN208840544 U CN 208840544U CN 201821702397 U CN201821702397 U CN 201821702397U CN 208840544 U CN208840544 U CN 208840544U
- Authority
- CN
- China
- Prior art keywords
- screw thread
- external screw
- thin
- aeroelasticity
- taper
- 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
- 230000008961 swelling Effects 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a kind of fixed devices of thin-walled parts aeroelasticity with threaded hole, including the flange seat and swelling device being connected on numerically-controlled machine tool, the flange seat includes the ring flange of integral structure, first positive stop lug boss and taper clamping part, external screw thread bushing is socketed in the taper clamping part outer circle, the external screw thread bushing excircle is equipped with external screw thread compatible with workpiece internal screw thread, the inner hole to match with the tapered surface of taper clamping part and swelling device is offered on axis, through-hole is offered on the flange seat central axis, swelling device is socketed on the inner hole of external screw thread bushing, and it passes through through-hole and is connect with numerically-controlled machine tool pull rod.The product clamping that the utility model can be used for having internal screw thread pipe sleeve class, structure is simple, low in cost, its installation is time saving and energy saving, convenient and efficient, will not disfiguring workpiece internal screw thread after swelling, and stability is good, concentricity is high, effectively increases the machining accuracy of workpiece, practical.
Description
Technical field
The utility model relates to a kind of fixed devices of thin-walled parts aeroelasticity with threaded hole, belong to part processing positioning
Tooling, field of fixtures.
Background technique
Currently, in the processing of many pipe sleeve class thin-wall workpieces, by its outer surface of CNC Lathe Turning, to thin-wall workpiece
Outer shape precision, concentricity, the conical surface bounce etc. parameter requests it is higher when, mostly use rigid central spindle's class fixture clamping, process
When rigid central spindle's class fixture is through in the axis hole of thin-wall workpiece, positioned with its internal surface of hole, but such fixture is rigid
Property mandrel be gap-matched and installed with inner hole of workpiece, positioning accuracy is low, so that its machining accuracy, concentricity and the conical surface are jumped
It is dynamic to be difficult to reach processing request；And there are clamping difficulty, skid when cutting, the problems such as production efficiency is low.Especially work as processing
Thin-wall workpiece (especially thin-walled large-scale workpiece) axis hole when being threaded hole, using mandrel class fixture, it is big not only to install gap, makes
Screw thread is easily weighed wounded at biggish mismachining tolerance, and in clamping, process, is caused workpiece to be scrapped when serious, is caused material resources, wealth
Power loss.
Summary of the invention
The technical problem to be solved by the present invention is to provide this one kind thin-walled parts aeroelasticities with threaded hole to fix
Device is particularly suitable for the big part product Set and Positioning of internal thread tube piece etc, can be with overcome the deficiencies in the prior art.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions: a kind of with threaded hole
Thin-walled parts aeroelasticity fixes device, it is fixed for the clamping with internal screw thread pipe sleeve class large-scale workpiece, including is connected in number
The flange seat and swelling device on lathe are controlled, the flange seat includes the ring flange of integral structure, the first positive stop lug boss and taper
Clamping part, is socketed with external screw thread bushing in the taper clamping part outer circle, the external screw thread bushing excircle be equipped with and workpiece in
Screw thread compatible external screw thread offers the inner hole to match with the tapered surface of taper clamping part and swelling device on axis,
Through-hole is offered on the flange seat central axis, the swelling device is socketed on the inner hole of external screw thread bushing, and is passed through logical
Hole is connect with numerically-controlled machine tool pull rod.
Aforementioned swelling device includes that taper thousand draws top, attachment screw and connecting leg, and the through-hole on the flange seat axis is rank
Terraced hole, the taper thousand are drawn top and are socketed in the stepped hole of taper clamping part, and tube sleeve is in separate taper clamping part
On stepped hole, it is equipped with screw thread at connecting leg inner hole both ends, the attachment screw, which runs through after taper thousand draws top, passes through screw thread and connecting leg
One end is connected through a screw thread, and the connecting leg other end is connect with numerically-controlled machine tool pull rod screw.
Aforementioned taper thousand draws the guide rod and conical head that top includes integral structure, and the attachment screw is soket head cap screw,
The taper thousand is drawn top central axis and is offered and the matched countersunk head through-hole of soket head cap screw, the guide rod outer diameter and flange seat
The stepped hole of close taper clamping part be adapted；The external conical surface of the conical head is adapted with external screw thread bushing inner hole.
It is equipped with the second positive stop lug boss in aforementioned external screw thread bushing one end, the taper clamping part is close to the first positive stop lug boss section
Equipped with cylindrical section, the inner hole of second positive stop lug boss and the cylindrical section clearance fit are socketed, and clearance fit having a size of
0.03~0.04mm。
It is offered in aforementioned external screw thread bushing relative to axis in the П shape grooving to setting, in second limit convex
Corresponding position is equipped with flat horizontal surface on platform, and the open end of the П shape grooving prolongs and passes to flat horizontal surface.
The groove width of aforementioned П shape grooving is less than 1mm.
Major diameter of thread is more slightly smaller than the internal screw thread aperture of workpiece in aforementioned external screw thread bushing, and the screw pitch phase of the two screw thread
Together.
External screw thread level-one setting lower than the internal screw thread precision of workpiece in aforementioned external screw thread bushing.
Aforementioned external screw thread bushing is compound bush.
Aforementioned numerically-controlled machine tool pull rod is pneumatic pull rod or oil pressure pull rod.
Compared with the prior art, the utility model discloses a kind of fixed device of thin-walled parts aeroelasticity with threaded hole,
Including the flange seat being combined and installed together, external screw thread bushing and swelling device, the flange seat include the flange of integral structure
Disk, the first positive stop lug boss and taper clamping part, the ring flange is for making the device be connected in numerically controlled lathe plane spindle flange
On；Installation of first positive stop lug boss for workpiece limits, and installation of the taper clamping part for workpiece is fixed, in taper
External screw thread bushing is socketed in clamping part outer circle, the excircle of external screw thread bushing is equipped with outer spiral shell compatible with workpiece internal screw thread
Line offers the inner hole to match with the tapered surface of taper clamping part and swelling device on axis, in the flange seat central axis
Offer through-hole on line, numerically-controlled machine tool pull rod is connect by through-hole with the swelling device, by numerically-controlled machine tool pull rod carry out to
After pull, drive swelling device expand external screw thread bushing under the stress of tapered direction, realize the external screw thread of external screw thread bushing
It is contacted with workpiece internal screw thread, it can workpiece is fixed, wherein the swelling device includes that taper thousand draws top, attachment screw
And connecting leg is connected on numerically-controlled machine tool pull rod by connecting leg, when installation, and ring flange is socketed on connecting leg, is installed and is fixed with bolt
On numerically controlled lathe plane spindle flange；External screw thread bushing is socketed on taper clamping part again；Installation taper thousand draws top, is used in combination
Attachment screw passes through, and keeps it fixed with connecting leg；Workpiece is socketed in external screw thread bushing again；Make numerically-controlled machine tool pull rod backward
It pulls, realizes that workpiece swelling is fixed, automatic swelling is realized by numerically-controlled machine tool pull rod, it is more time saving and energy saving, effectively improve work
Part clamping efficiency.
The external screw thread bushing is compound bush, is equipped with the second positive stop lug boss, the method in external screw thread bushing one end
The taper clamping part of blue seat is equipped with cylindrical section, the inner hole and the cylinder of second positive stop lug boss close to the first positive stop lug boss section
Section clearance fit socket, and offer relative to axis in external screw thread bushing in the П shape grooving to setting, it realizes swollen
It is damage that workpiece internal screw thread is avoided during tight, effectively improves workpiece processing quality.
The utility model can be used for the product clamping for having riffled tube, covering class, be particularly suitable for the production big part of thin-walled, knot
Structure is simple, low in cost, and it is time saving and energy saving to install, convenient and efficient, after swelling will not disfiguring workpiece internal screw thread, and stability
Good, concentricity height, when processing thin-wall workpiece, deflection is smaller, and the workpiece practicability high to Geometrical Tolerance Principle is very good, energy
Guarantee that the requirement of inner hole, outer circle and both ends of the surface reaches in 0.01mm, effectively increases the machining accuracy of workpiece, it is practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model reality.
Fig. 2 is the structural schematic diagram of external screw thread bushing in Fig. 1.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe:
As depicted in figs. 1 and 2, the fixed device of a kind of thin-walled parts aeroelasticity with threaded hole, it is used for band internal screw thread
The clamping of pipe sleeve class large-scale workpiece 7 is fixed, including the flange seat 1 being connected on numerically-controlled machine tool, external screw thread bushing 2 and swelling dress
It sets, the flange seat 1 includes ring flange 11, the first positive stop lug boss 12 and the taper clamping part 13 of integral structure, the ring flange
11 match with numerically controlled lathe plane spindle flange, are equipped with limiting groove 111 in the installation end Middle face of ring flange 11, guarantee peace
It realizes and is co-axially mounted during dress, bolt mounting holes 112 are offered on ring flange 11, allow ring flange 11 fast by bolt
Speed is mounted on numerically controlled lathe plane spindle flange；External screw thread bushing 2 is socketed in 13 outer circle of taper clamping part, it is described outer
2 excircle of screw-thread bush is equipped with external screw thread 21 compatible with 7 internal screw thread of workpiece, offer on axis with taper clamping part 13 and
The inner hole 22 that the tapered surface of swelling device matches offers through-hole 14, the swelling dress on 1 central axis of flange seat
It sets in the inner hole 22 for being socketed in external screw thread bushing 2, and passes through through-hole 14 and connect with numerically-controlled machine tool pull rod 6, the swelling device
For the swelling of external screw thread bushing 2, the swelling device includes that taper thousand draws top 3, attachment screw 4 and connecting leg 5, the taper thousand
Draw the guide rod 31 and conical head 32 that top 3 includes integral structure, and the tapered surface of the conical head 32 and external screw thread bushing 2
Inner hole 22 is adapted, and conical head 32 is socketed in the inner hole 22 of external screw thread bushing 2 when installation, and the two conical surface abuts, the flange
Through-hole 14 on 1 axis of seat is stepped hole, and the taper thousand draws 31 outer diameter of guide rod on top 3 and the close tapered clamp of flange seat 1
The stepped hole for holding portion is adapted, and is socketed in guide rod 31 in the stepped hole of taper clamping part, and connecting leg 5 is socketed in far from cone
On the stepped hole of shape clamping part, it is equipped with screw thread at 5 inner hole both ends of connecting leg, attachment screw 4, which runs through after taper thousand draws top 3, passes through spiral shell
Line is connected through a screw thread with 5 one end of connecting leg, and 5 other end of connecting leg is threadedly coupled fixation with numerically-controlled machine tool pull rod 6.
The attachment screw 4 is soket head cap screw, and the taper thousand is drawn 3 central axis of top and offered and soket head cap screw phase
Matched countersunk head through-hole, the ailhead of soket head cap screw are placed in the countersunk head of countersunk head through-hole, can to avoid in installation process with other
Part interferes.
The external screw thread bushing 2 is compound bush, and compound adhesive wood material can guarantee swelling device spiral shell outside swelling
During line bushing 2,7 internal screw thread of workpiece will not be weighed wounded, be deformed, and be equipped with the second positive stop lug boss in described 2 one end of external screw thread bushing
23, the taper clamping part 13 of the flange seat 1 is equipped with cylindrical section 131, second limit convex close to 12 sections of the first positive stop lug boss
The inner hole of platform 23 and the cylindrical section 131 are clearance fit socket, and clearance fit guarantees swollen having a size of 0.03 ~ 0.04mm
There are threaded engagement surpluses during tight, can more preferably protect 7 internal screw thread of workpiece；Phase is offered in the external screw thread bushing 2
It is a pair of of arrangement above, described for the П shape grooving 24 that axis is in setting, and according to the size of external screw thread bushing 2
Corresponding position is milled with flat horizontal surface 25 on second positive stop lug boss 23, the open end of the П shape grooving 24 prolong pass to it is flat
Face 25, and the groove width of the П shape grooving 24 is less than 1mm, is generated swollen along П shape grooving 24 with 360 ° of circumference expansions when expansion
The expansive force of expansive force, generation is uniform, and it is intact to can protect 7 internal screw thread of workpiece；Major diameter of thread compares workpiece in the external screw thread bushing 2
7 internal screw thread aperture is slightly smaller, and the screw pitch of the two screw thread is identical, guarantees installation easily, quickly, while the two screw pitch is identical,
Guarantee the contact of the latter two pits of spreading, so that 7 internal screw thread of workpiece will not be weighed wounded；External screw thread 21 compares work in the external screw thread bushing 2
The low level-one setting of the internal screw thread precision of part 7, not only manufacturing cost is low, but also makes to expand in the margin of tolerance of accuracy of thread, can
To effectively improve the clamping precision of workpiece 7, guarantee that the requirement of outer circle and both ends of the surface after workpiece 7 is processed reaches in 0.01mm.
The numerically-controlled machine tool pull rod 6 is pneumatic pull rod or oil pressure pull rod, when being stretched backward through pneumatic or oil pressure, band
Dynamic pull rod 6, connecting leg 7 and attachment screw 4 move backward, and then driving taper thousand to draw top 3 makes external screw thread bushing 2 in tapered direction
Expand under stress to which workpiece 7 is fixed, swelling is realized by numerically-controlled machine tool pull rod 6 automatically, efficient quick is installed, is saved
Shi Shengli.
Specific assembly method are as follows: connecting leg 5 is connect with numerically-controlled machine tool pull rod 6 first, the stepped hole of flange seat 1 is socketed in
It on connecting leg 5, and is fixed on numerically controlled lathe plane spindle flange, wherein being realized by connecting leg 5, limiting groove 111
It is co-axially mounted；External screw thread bushing 2 is socketed on taper clamping part 13 again, thousand is then installed and draws top 3 and fixed with attachment screw 4
It is firm；Workpiece 7 is socketed in external screw thread bushing 2 again；Finally start numerically-controlled machine tool, pulls back its pull rod 6, and then swelling
External screw thread bushing realizes work piece.
Wherein, air pressure is required during swelling, carries out adjustment and installation by the way of repeatedly adjusting air pressure, the
Clamped one time must not exceed 0.2 air pressure, and rear thread can adjust air pressure according to clamping product dynamics situation, and expand in screw thread
In the margin of tolerance of precision, while accomplishing to avoid damage to 7 internal screw thread of workpiece, installation accuracy is effectively improved.
Claims (10)
1. a kind of fixed device of thin-walled parts aeroelasticity with threaded hole, it is used for band internal screw thread pipe sleeve class large-scale workpiece (7)
Clamping fix, including the flange seat (1) being connected on numerically-controlled machine tool and swelling device, it is characterised in that: the flange seat (1)
Ring flange (11), the first positive stop lug boss (12) and taper clamping part (13) including integral structure, the taper clamping part (13)
It is socketed in outer circle external screw thread bushing (2), external screw thread bushing (2) excircle is equipped with compatible with workpiece (7) internal screw thread
External screw thread (21) offers the inner hole (22) to match with the tapered surface of taper clamping part (13) and swelling device on axis,
Through-hole (14) are offered on flange seat (1) central axis, the swelling device is socketed in the inner hole of external screw thread bushing (2)
(22) on, and through-hole (14) is passed through and are connect with numerically-controlled machine tool pull rod (6).
2. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 1, it is characterised in that: described swollen
Tight device includes that taper thousand draws top (3), attachment screw (4) and connecting leg (5), and the through-hole (14) on flange seat (1) axis is
Stepped hole, the taper thousand are drawn top (3) and are socketed in the stepped hole of taper clamping part (13), and connecting leg (5) is socketed in separate
On the stepped hole of taper clamping part (13), it is equipped with screw thread at connecting leg (5) inner hole both ends, the attachment screw (4) runs through taper
Thousand draw top (3) is connected through a screw thread by screw thread and connecting leg (5) one end afterwards, connecting leg (5) other end and numerically-controlled machine tool pull rod (6) spiral shell
Line connection.
3. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 2, it is characterised in that: the cone
Shape thousand draws the guide rod (31) and conical head (32) that top (3) includes integral structure, and the attachment screw (4) is soket head cap screw,
The taper thousand is drawn top (3) central axis and is offered and the matched countersunk head through-hole of soket head cap screw, guide rod (31) outer diameter
It is adapted with the stepped hole of the close taper clamping part (13) of flange seat (1)；The external conical surface of the conical head (32) and outer spiral shell
Line bushing (2) inner hole is adapted.
4. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 1, it is characterised in that: described
External screw thread bushing (2) one end is equipped with the second positive stop lug boss (23), and the taper clamping part (13) is close to the first positive stop lug boss (12)
Section is equipped with cylindrical section (131), and the inner hole and the cylindrical section (131) clearance fit of second positive stop lug boss (23) are socketed, and
And clearance fit is having a size of 0.03 ~ 0.04mm.
5. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 4, it is characterised in that: described
It is offered in external screw thread bushing (2) relative to axis in the П shape grooving (24) to setting, in second positive stop lug boss (23)
Upper corresponding position is equipped with flat horizontal surface (25), and the open end of the П shape grooving (24) prolongs and passes to flat horizontal surface
(25).
6. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 4, it is characterised in that: the П
The groove width of shape grooving (24) is less than 1mm.
7. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 5, it is characterised in that: described outer
Major diameter of thread is more slightly smaller than the internal screw thread aperture of workpiece on screw-thread bush (2), and the screw pitch of the two screw thread is identical.
8. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 6, it is characterised in that: described outer
External screw thread level-one setting lower than the internal screw thread precision of workpiece on screw-thread bush (2).
9. the fixed device of the thin-walled parts aeroelasticity with threaded hole according to claim 4 ~ 8 any claim,
Be characterized in that: the external screw thread bushing (2) is compound bush.
10. the fixed device of thin-walled parts aeroelasticity with threaded hole according to claim 1, it is characterised in that: described
Numerically-controlled machine tool pull rod (6) is pneumatic pull rod or oil pressure pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702397.9U CN208840544U (en) | 2018-10-20 | 2018-10-20 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702397.9U CN208840544U (en) | 2018-10-20 | 2018-10-20 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208840544U true CN208840544U (en) | 2019-05-10 |
Family
ID=66375899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821702397.9U Expired - Fee Related CN208840544U (en) | 2018-10-20 | 2018-10-20 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208840544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014267A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
| CN110270701A (en) * | 2019-06-26 | 2019-09-24 | 郭五连 | A kind of numerical control CNC machining center internal-expansion type tooling |
| CN112936171A (en) * | 2019-12-10 | 2021-06-11 | 国核电站运行服务技术有限公司 | Explosion valve shear cap assembly and disassembly tools |
-
2018
- 2018-10-20 CN CN201821702397.9U patent/CN208840544U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014267A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
| CN110270701A (en) * | 2019-06-26 | 2019-09-24 | 郭五连 | A kind of numerical control CNC machining center internal-expansion type tooling |
| CN112936171A (en) * | 2019-12-10 | 2021-06-11 | 国核电站运行服务技术有限公司 | Explosion valve shear cap assembly and disassembly tools |
| CN112936171B (en) * | 2019-12-10 | 2023-01-13 | 国核电站运行服务技术有限公司 | Explosion valve shear cap assembly and disassembly tools |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109014267A (en) | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole | |
| CN208840544U (en) | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole | |
| CN203418134U (en) | High-precision cylinder sleeve outer circle finish-turning fixture | |
| CN202779879U (en) | Bearing ring clamp | |
| CN103252514A (en) | Expanding type clamp used on lathe and machining method thereof | |
| CN208788079U (en) | A kind of pneumatic inner hole elastic fixing device | |
| CN109015057A (en) | A kind of pneumatic inner hole elastic fixing device | |
| CN103350261A (en) | Gear hobbing clamp oriented by flat position of gear and installation and debugging method | |
| CN109015039A (en) | A kind of thin-walled parts processing bit combination fixture with threaded hole | |
| CN208450639U (en) | A kind of expansion sleeve type turning clamp for thin-walled parts | |
| CN204603482U (en) | Internal-expansion type external toothing gear-shaping clamp | |
| CN212240194U (en) | Thin wall casing damping clamping device with adjustable | |
| CN203184775U (en) | Gear hob jig | |
| CN201338105Y (en) | Jig for turning streamline profile | |
| CN110625201A (en) | Shaft gear shaping clamp | |
| CN103551814A (en) | Technical method for processing connector | |
| CN109986281B (en) | Electromagnetic valve shock absorber intermediate cylinder rolling groove machining tool | |
| CN207479645U (en) | A kind of cone vehicle internal clamp | |
| CN208788051U (en) | A kind of thin-walled parts processing bit combination fixture with threaded hole | |
| CN209094590U (en) | A kind of aerodynamic force expansion core fixture | |
| CN202062138U (en) | Automatic centering and clamping device for high-precision spiral bevel gear | |
| CN220006885U (en) | Edge milling fixing clamp for spray pipe seat | |
| CN220718534U (en) | Quick location is with cover that rises | |
| CN221621024U (en) | Gear grinding clamp for similar harmonic gear | |
| CN217452977U (en) | Special follow cutter center frame for lathe slender shaft machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 550014 1st floor, building 4, group B3, phase I standard workshop, shawen eco tech Industrial Park, Guiyang National High tech Industrial Development Zone, Guiyang City, Guizhou Province Patentee after: Guizhou Hangcheng Industrial Co.,Ltd. Address before: 550014 room B204, auxiliary building of standardized workshop, Jinyang science and Technology Industrial Park, national high tech Zone, Guiyang City, Guizhou Province Patentee before: GUIZHOU HANGSHUO INDUSTRY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |