CN109227094A - Machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure - Google Patents
Machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure Download PDFInfo
- Publication number
- CN109227094A CN109227094A CN201811380917.3A CN201811380917A CN109227094A CN 109227094 A CN109227094 A CN 109227094A CN 201811380917 A CN201811380917 A CN 201811380917A CN 109227094 A CN109227094 A CN 109227094A
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- China
- Prior art keywords
- arc
- inner ring
- positioning device
- shaped slot
- bearing inner
- 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.)
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Links
- 238000003754 machining Methods 0.000 title claims abstract description 16
- 238000010586 diagram Methods 0.000 description 9
- 238000004080 punching Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
It is used the present invention provides a kind of machining and the press-loading device for positioning anti-unusual fluctuation structure is installed, comprising: the first arc-shaped slot, electric cylinder, axle sleeve, the second arc-shaped slot, spring；Circular trough is equipped in the press fitting bottom plate, the outer race positioning device is embedded in the bar groove in circular trough, and outer race positioning device is equipped with the first arc-shaped slot, the bearing inner ring positioning device is welded on the bottom of Fitted Axles, and the bottom of bearing inner ring positioning device is equipped with the second arc-shaped slot, spring is set on the top of the T-type sliding bar, and the bottom of T-type sliding bar is welded with limit batten A or limit batten B.Can by outer race and bearing inner ring respectively according to the diameter of bearing be stuck on the first arc-shaped slot in the second arc-shaped slot, and using limit batten A perhaps limiting batten B and fixing to the bottom edge detent of bearing inner ring can prevent during press fitting outer race to shift or shake with bearing inner ring.
Description
Technical field
The present invention relates to technical fields of mechanical processing, and more specifically, in particular to a kind of machining is fixed with being equipped with
The press-loading device of the anti-unusual fluctuation structure in position.
Background technique
In mechanical processing process, it is often necessary to use bearing, bearing (Bearing) is a kind of heavy in contemporary mechanical equipment
Want components.Its major function is to support mechanical rotary body, reduces the coefficient of friction in its motion process, and guarantee its revolution
Precision, and bearing can be used adding man-hour requirement that outer race is pressed into rear together with bearing inner ring.
For example, application No. is: in the patent of CN201721688147.X, disclose a kind of annular riveting positioning press fitting dress
Set, structure include: cable, fuel tank, movable punching head mounting base, formed punch, workbench, pressure gauge, workbench mounting base, motor,
Electronic box, support frame, support leg, mobile framework, cable are equipped with two and are applied in electronic box vertically respectively, and cable is connected electrically in fuel tank
On, fuel tank is horizontally fixed in movable punching head mounting base, and formed punch is mechanically connected under movable punching head mounting base, the mobile punching of the present invention
It is equipped with cylinder barrel, piston, piston rod, end cap, sealing element, pneumatic cylinder in head mounting base, realizes annular riveting positioning press-loading apparatus
Simply work efficiency is high greatly improves shipment amount for structure, and press-loading apparatus pressurizes while carrying out comprehensive to workpiece surface
Spreading, workpiece appearance is good smooth, and generate annular riveting positioning press-loading apparatus will not in use by pneumatic cylinder
Vibration makes device, and work efficiency is high and will not generate noise.
Therefore, exist in traditional bearing press-fitting device: can only be to the bearing press mounting of same diameter, bearing when press fitting
The problem of inner ring and outer race are easy to happen offset or shaking, proper alignment after influencing bearing integral press mounting.
Summary of the invention
(1) technical problem
In conclusion the present invention provides a kind of machining with the press-loading device for positioning anti-unusual fluctuation structure is equipped with, pass through
Structure and functional improvement, with solve can only be to the bearing press mounting of same diameter, when press fitting outside bearing inner ring and bearing
The problem of ring is easy to happen offset or shaking, proper alignment after influencing bearing integral press mounting.
(2) technical solution
The present invention provides a kind of machinings with the press-loading device for positioning anti-unusual fluctuation structure is equipped with, for different straight
The bearing press mounting of diameter size, when press fitting, can prevent the outer unusual fluctuation of bearing inner ring.It is fixed with being equipped in machining provided by the invention
In the press-loading device of the anti-unusual fluctuation structure in position, specifically include: frame, support baseboard, control button are pressed bottom plate, circular trough, item
Slot, outer race positioning device, the first arc-shaped slot, top plate, electric cylinder, guide pad, axle sleeve, Fitted Axles, bearing inner ring positioning
Device, the second arc-shaped slot, T-type sliding bar, spring, limit batten A and limit batten B；The press fitting bottom plate is welded on frame
Outer end face on, and be pressed in bottom plate and be equipped with circular trough, the outer race positioning device is embedded in the bar groove in circular trough,
And outer race positioning device is equipped with the first arc-shaped slot, is sequentially installed with guide pad on the frame of the press fitting bottom plate upper end
With top plate, and electric cylinder is equipped with by bolt on top plate, axle sleeve is inlaid on the guide pad, and Fitted Axles are slidably mounted on
In axle sleeve, the telescopic rod of the electric cylinder bottom is connected to the top of Fitted Axles, and the bearing inner ring positioning device is welded on pressure
The bottom of axis is filled, and the bottom of bearing inner ring positioning device is equipped with the second arc-shaped slot, leans in the bearing inner ring positioning device
One end of nearly second arc-shaped slot is interspersed with T-type sliding bar, and spring is set on the top of T-type sliding bar, and T-type sliding bar
Bottom be welded with limit batten A or limit batten B, the cavity bottom of the frame is connected with support baseboard, and frame is another
Control button is also equipped on end face.
Further, the diameter of first arc-shaped slot successively subtracts from the outer end of outer race positioning device to inner end
It is small.
Further, the center of the bearing inner ring positioning device is located at corresponding outer race positioning device center
Same vertical direction.
Further, the outer diameter of the bearing inner ring positioning device is 0.8 times of outer race positioning device outer diameter.
Further, the diameter of second arc-shaped slot successively subtracts from the outer end of bearing inner ring positioning device to inner end
It is small.
Further, the limit batten A and limit batten B are provided with three groups, and limit batten A and limit batten B
Interval setting.
Further, the length of the limit batten A extends to the outer end of the second arc-shaped slot.
Further, the length of the limit batten B extends to the intermediate position of the second arc-shaped slot.
(3) beneficial effect
The present invention provides a kind of machinings with the press-loading device for positioning anti-unusual fluctuation structure is equipped with, by being provided with axis
Outer ring positioning device and bearing inner ring positioning device are held, it can be by outer race and bearing inner ring respectively according to the diameter of bearing
It is stuck on the first arc-shaped slot in the second arc-shaped slot, and using limit batten A or limits batten B to the bottom of bearing inner ring
End margin detent is fixed, and can be prevented outer race during press fitting from shifting or shaking with bearing inner ring, can also be made axis
It holds concentric after outer ring is pressed with bearing inner ring.
Under the action of the spring can when limit the even closer bottom for being fitted in bearing inner ring of batten, improve bearing inner ring
Compression effect, avoid bearing inner ring during press fitting from falling off.
By being provided with three set pressing devices, bearing press mounting successively can be carried out using three set pressing devices, to be pressed not
Same bearing, effectively improves working efficiency, the cavity and bottom plate of base of frame can be used to store article etc., and use is more square
Just.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is enlarged structure schematic diagram at A of the invention；
Fig. 3 is that structural schematic diagram is faced upward in side in Fig. 1 of the invention；
Fig. 4 is enlarged structure schematic diagram at B of the invention；
Structural schematic diagram when Fig. 5 is bearer ring detent of the present invention installation；
Fig. 6 is enlarged structure schematic diagram at C of the invention；
Fig. 7 is enlarged structure schematic diagram at D of the present invention；
Fig. 8 is that structural schematic diagram is faced upward in side in Fig. 5 of the invention；
Fig. 9 is enlarged structure schematic diagram at E of the invention.
In Fig. 1 into Fig. 9, the corresponding relationship of component names or lines and accompanying drawing number are as follows:
Frame -1, support baseboard -101, control button -102 are pressed bottom plate -2, circular trough -201, bar groove -202, bearing
Outer ring positioning device -3, the first arc-shaped slot 301, top plate -4, electric cylinder -401, guide pad -5, axle sleeve -501, Fitted Axles -6,
Bearing inner ring positioning device -7, the second arc-shaped slot -701, T-type sliding bar -8, spring -801 limit batten A-801, positive stop strip
Plate B-802.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 1 is please referred to Fig. 9.
In order to which solve in the prior art can only be to the bearing press mounting of same diameter, when press fitting outside bearing inner ring and bearing
The problem of ring is easy to happen offset or shaking, proper alignment after influencing bearing integral press mounting, the invention proposes a kind of machinery
Processing is with being equipped with the press-loading device for positioning anti-unusual fluctuation structure, and for the bearing press mounting to different-diameter size, when press fitting can prevent
The only outer unusual fluctuation of bearing inner ring, comprising: frame 1, support baseboard 101, control button 102 are pressed bottom plate 2, circular trough 201, bar groove
202, outer race positioning device 3, the first arc-shaped slot 301, top plate 4, electric cylinder 401, guide pad 5, axle sleeve 501, Fitted Axles
6, bearing inner ring positioning device 7, the second arc-shaped slot 701, T-type sliding bar 8, spring 801, limit batten A801 and limit batten
B802；The press fitting bottom plate 2 is welded on the outer end face of frame 1, and is pressed in bottom plate 2 and is equipped with circular trough 201, outside the bearing
Ring positioning device 3 is embedded in the bar groove 202 in circular trough 201, and outer race positioning device 3 is equipped with the first arc-shaped slot
301, it is described press fitting 2 upper end of bottom plate frame 1 on be sequentially installed with guide pad 5 and top plate 4, and on top plate 4 pass through bolt installation
There is electric cylinder 401, axle sleeve 501 is inlaid on the guide pad 5, and Fitted Axles 6 are slidably mounted in axle sleeve 501, it is described electronic
The telescopic rod of 401 bottom of cylinder is connected to the top of Fitted Axles 6, and the bearing inner ring positioning device 7 is welded on the bottom of Fitted Axles 6
Portion, and the bottom of bearing inner ring positioning device 7 is equipped with the second arc-shaped slot 701, close to the in the bearing inner ring positioning device 7
One end of two arc-shaped slots 701 is interspersed with T-type sliding bar 8, and spring 801 is set on the top of T-type sliding bar 8, and T-type is sliding
The bottom of lever 8 is welded with limit batten A801 or limit batten B802, the cavity bottom of the frame 1 are connected with support baseboard
101, and control button 102 is also equipped on 1 other end of frame.
Wherein, the diameter of the first arc-shaped slot 301 is sequentially reduced from the outer end of outer race positioning device 3 to inner end, just
In the outer race of different-diameter to be put into the first arc-shaped slot 301, so as to be pressed to different size of bearing.
Wherein, the center of bearing inner ring positioning device 7 is located at same perpendicular with corresponding 3 center of outer race positioning device
Histogram is to can make at the center of bearing inner ring and the center of outer race when bearing inner ring and outer race detent is fixed
In on same vertical direction.
Wherein, the outer diameter of bearing inner ring positioning device 7 is 0.8 times of 3 outer diameter of outer race positioning device.
Wherein, the diameter of the second arc-shaped slot 701 is sequentially reduced from the outer end of bearing inner ring positioning device 7 to inner end, just
In the bearing inner ring of different-diameter is put into the first arc-shaped slot 301.
Wherein, limit batten A801 and limit batten B802 are provided with three groups, and limit batten A801 and limit batten
The setting of the interval B802.
Wherein, the length for limiting batten A801 extends to the outer end of the second arc-shaped slot 701, using limit batten A801
The bottom face smaller to diameter in bearing inner ring carries out detent.
Wherein, the length for limiting batten B802 extends to the intermediate position of the second arc-shaped slot 701, using limit batten
Bottom face A801 bigger to diameter in bearing inner ring carries out detent.
The specifically used mode and effect of the present embodiment: in the present invention, outer race placement is snapped into outer race and is determined
In the first arc-shaped slot 301 on the device 3 of position, and the ball of bearing inner ring and outside is snapped into bearing inner ring positioning device
In the second arc-shaped slot 701 on 7, and using limit batten A801 or batten B802 is limited to the bottom edge of bearing inner ring
Detent is fixed, and can be prevented outer race during press fitting from shifting or shaking with bearing inner ring, be passed through control button 102
Starting electric cylinder 401 drives Fitted Axles 601 to move downward, make bearing inner ring that 7 bottom of bearing inner ring positioning device is fixed and
Ball is pressed on outer race, and successively can carry out bearing press mounting using three set pressing devices has to be pressed different bearings
The raising working efficiency of effect, it is more convenient to use also using cavity and bottom plate the storage article etc. of 1 bottom of frame.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (8)
1. a kind of machining is with the press-loading device for positioning anti-unusual fluctuation structure is equipped with, for the bearing pressure to different-diameter size
Dress, when press fitting, can prevent the outer unusual fluctuation of bearing inner ring characterized by comprising frame (1), support baseboard (101), control button
(102), it is pressed bottom plate (2), circular trough (201), bar groove (202), outer race positioning device (3), the first arc-shaped slot
(301), top plate (4), electric cylinder (401), guide pad (5), axle sleeve (501), Fitted Axles (6), bearing inner ring positioning device (7),
Second arc-shaped slot (701), T-type sliding bar (8), spring (801) limit batten A (801) and limit batten B (802)；It is described
Press fitting bottom plate (2) is welded on the outer end face of frame (1), and is pressed in bottom plate (2) and is equipped with circular trough (201), outside the bearing
Ring positioning device (3) is embedded in the bar groove (202) in circular trough (201), and outer race positioning device (3) is equipped with first
Arc-shaped slot (301) is sequentially installed with guide pad (5) and top plate (4) on the frame (1) of described press fitting bottom plate (2) upper end, and top
It is equipped with electric cylinder (401) on plate (4) by bolt, is inlaid with axle sleeve (501) on the guide pad (5), and Fitted Axles (6) are sliding
Dynamic to be mounted in axle sleeve (501), the telescopic rod of electric cylinder (401) bottom is connected to the top of Fitted Axles (6), the bearing
Inner ring positioning device (7) is welded on the bottom of Fitted Axles (6), and the bottom of bearing inner ring positioning device (7) is equipped with the second arc
Card slot (701), one end on the bearing inner ring positioning device (7) close to the second arc-shaped slot (701) are interspersed with T-type sliding bar
(8), it and on the top of T-type sliding bar (8) is set with spring (801), and the bottom of T-type sliding bar (8) is welded with limit batten A
(801) or batten B (802) are limited, the cavity bottom of the frame (1) is connected with support baseboard (101), and frame (1) is another
Control button (102) are also equipped on end face.
2. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
The diameter of first arc-shaped slot (301) is sequentially reduced from the outer end of outer race positioning device (3) to inner end.
3. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
The center of bearing inner ring positioning device (7) is located at same vertical direction with corresponding outer race positioning device (3) center.
4. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
The outer diameter of bearing inner ring positioning device (7) is 0.8 times of outer race positioning device (3) outer diameter.
5. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
The diameter of second arc-shaped slot (701) is sequentially reduced from the outer end of bearing inner ring positioning device (7) to inner end.
6. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
Limit batten A (801) and limit batten B (802) are provided with three groups, and limit between batten A (801) and limit batten B (802)
Every setting.
7. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
The length of limit batten A (801) extends to the outer end of the second arc-shaped slot (701).
8. machining is used and is equipped with the press-loading device for positioning anti-unusual fluctuation structure as described in claim 1, it is characterised in that: described
The length of limit batten B (802) extends to the intermediate position of the second arc-shaped slot (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380917.3A CN109227094B (en) | 2018-11-20 | 2018-11-20 | Press mounting equipment provided with positioning abnormal movement prevention structure and used for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380917.3A CN109227094B (en) | 2018-11-20 | 2018-11-20 | Press mounting equipment provided with positioning abnormal movement prevention structure and used for machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109227094A true CN109227094A (en) | 2019-01-18 |
| CN109227094B CN109227094B (en) | 2020-10-30 |
Family
ID=65075143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811380917.3A Active CN109227094B (en) | 2018-11-20 | 2018-11-20 | Press mounting equipment provided with positioning abnormal movement prevention structure and used for machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109227094B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164799A (en) * | 2019-05-31 | 2019-08-23 | 吉林建筑大学 | A kind of positioning package mechanism and method based on Controlled by micro computer |
| CN113759173A (en) * | 2020-06-01 | 2021-12-07 | 中车永济电机有限公司 | Bearing insulation resistance detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203395036U (en) * | 2013-08-22 | 2014-01-15 | 爱协林天捷热处理系统（唐山）有限公司 | Automatic bearing ring assembling device |
| CN203599815U (en) * | 2013-11-18 | 2014-05-21 | 铜陵科达车辆装备有限责任公司 | Bearing protective cover press fitting mechanism |
| CN104254701A (en) * | 2012-12-26 | 2014-12-31 | 日本精工株式会社 | Assembling device for angular ball bearing and assembling method for angular ball bearing |
| JP2015182177A (en) * | 2014-03-25 | 2015-10-22 | Ntn株式会社 | Shaft assembling device of conical roller bearing |
| CN206662675U (en) * | 2017-05-09 | 2017-11-24 | 保定市兴润车桥制造有限公司 | A kind of front hub bearing outer ring press-fitting tool |
-
2018
- 2018-11-20 CN CN201811380917.3A patent/CN109227094B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254701A (en) * | 2012-12-26 | 2014-12-31 | 日本精工株式会社 | Assembling device for angular ball bearing and assembling method for angular ball bearing |
| CN203395036U (en) * | 2013-08-22 | 2014-01-15 | 爱协林天捷热处理系统（唐山）有限公司 | Automatic bearing ring assembling device |
| CN203599815U (en) * | 2013-11-18 | 2014-05-21 | 铜陵科达车辆装备有限责任公司 | Bearing protective cover press fitting mechanism |
| JP2015182177A (en) * | 2014-03-25 | 2015-10-22 | Ntn株式会社 | Shaft assembling device of conical roller bearing |
| CN206662675U (en) * | 2017-05-09 | 2017-11-24 | 保定市兴润车桥制造有限公司 | A kind of front hub bearing outer ring press-fitting tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164799A (en) * | 2019-05-31 | 2019-08-23 | 吉林建筑大学 | A kind of positioning package mechanism and method based on Controlled by micro computer |
| CN110164799B (en) * | 2019-05-31 | 2021-03-02 | 吉林建筑大学 | Positioning packaging mechanism and method based on microelectronic control |
| CN113759173A (en) * | 2020-06-01 | 2021-12-07 | 中车永济电机有限公司 | Bearing insulation resistance detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109227094B (en) | 2020-10-30 |
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Effective date of registration: 20201009 Address after: Building 39, Weile neighborhood life square, Luzhi Town, Wuzhong District, Suzhou City, Jiangsu Province Applicant after: Suzhou yinzhicheng new energy Co., Ltd Address before: 510062 Room 3308, East Tower, 753 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province Applicant before: Liao Fengqing Applicant before: Liu Yingying Applicant before: Tian Chaohui |
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