CN111408802B - Gear positioning and processing device based on three-roller centering principle and use method thereof - Google Patents
Gear positioning and processing device based on three-roller centering principle and use method thereof Download PDFInfo
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- CN111408802B CN111408802B CN202010376659.2A CN202010376659A CN111408802B CN 111408802 B CN111408802 B CN 111408802B CN 202010376659 A CN202010376659 A CN 202010376659A CN 111408802 B CN111408802 B CN 111408802B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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Abstract
The invention relates to the technical field of gear machining, and discloses a gear positioning machining device based on a three-roller centering principle and a using method thereof, wherein the gear positioning machining device comprises a support, a planing pin upright post is fixedly connected to the left side of the support, a transverse moving frame is movably connected to the top end of the planing pin upright post, a longitudinal moving frame is movably connected to the right side of the transverse moving frame, a cutter fixing seat is fixedly connected to the bottom end of the longitudinal moving frame, a cutter is movably connected to the outside of the cutter fixing seat, a positioning upright post is fixedly connected to the right side of the support, a lifting motor is fixedly connected to the inside of the positioning upright post, a lifting shaft is fixedly connected to the top of the lifting motor, and a lifting cross arm and a positioning circular ring are matched for use, so that the gear is fixed from the upper part, the gear is prevented, when the rotary platform supports the gear to be machined, the tooth part is suspended, and the damage caused by the fact that a cutter collides with the second rotary platform can be avoided.
Description
The application is filed on 2019, 08 and 21, and the application number is CN 201910773182.9, and the invention is named as a divisional application of the gear positioning and processing device based on the three-roller centering principle.
Technical Field
The invention relates to the technical field of gear processing, in particular to a gear positioning and processing device based on a three-roller centering principle and a using method thereof.
Background
The gear is a mechanical element with a gear on a wheel rim which is continuously engaged to transmit motion and power, and is widely applied to machinery, high-precision instruments and large heavy-duty machinery are applied to the gear, wherein the high-precision instruments have very high requirements on the machining precision of the gear, especially on the machining of the gear.
The gear horizontal placement and the radial clamping are fixed earlier in current gear machining, because need carry out tooth processing to the gear, avoid cutter and brace table to bump and lead to the cutter to damage, the unsettled processing of gear teeth part usually, but unsettled support, make the gear lose partial support, axial fluctuation is big, the location is unstable, error grow when making gear machining, influence the gear quality, gear fixation often uses anchor clamps fixed gear earlier in addition, fix anchor clamps at the brace table again, centering is inaccurate, radial positioning has the error, influence gear machining quality.
Disclosure of Invention
Technical problem to be solved
In order to solve the problems, the invention provides a gear positioning and processing device based on a three-roller centering principle and a use method thereof.
(II) technical scheme
In order to realize the purposes of stable and fluctuation-free axial positioning, automatic centering and fixed axis and machining precision guarantee, the invention provides the following technical scheme: a gear positioning processing device based on a three-roller centering principle and a using method thereof comprise a bracket, wherein a planing pin upright post is fixedly connected to the left side of the bracket, a transverse moving frame is movably connected to the top end of the planing pin upright post, a longitudinal moving frame is movably connected to the right side of the transverse moving frame, a cutter fixing seat is fixedly connected to the bottom end of the longitudinal moving frame, a cutter is movably connected to the outer part of the cutter fixing seat, a positioning upright post is fixedly connected to the right side of the bracket, a lifting motor is fixedly connected to the inner part of the positioning upright post, a lifting shaft is fixedly connected to the top part of the lifting motor, a lifting gear is movably connected to the outer part of the lifting shaft, a fixed shaft is fixedly connected to the outer part of the fixed shaft, a lifting cross arm is fixedly connected to the outer part of the fixed shaft, a lifting, the bottom fixedly connected with fixed ring of connecting rod, the bottom fixedly connected with location plane bearing of fixed ring, the bottom fixedly connected with location ring of location plane bearing, the top fixedly connected with mount table of support, the inside swing joint of mount table has fixing bolt one and fixing bolt two, the inside fixedly connected with bearing of mount table, the inside fixedly connected with rotation axis of bearing, the inside fixedly connected with transfer line of rotation axis, the bottom fixedly connected with rotating electrical machines of transfer line, the top fixedly connected with rotary platform of rotation axis, rotary platform's the rotatory plane bearing of bottom fixedly connected with, rotary platform's top fixedly connected with centering fixture.
The centering fixture comprises a fixture frame, a rotating block is movably connected inside the fixture frame, a rotating hole is formed in the rotating block, a positioning pin is movably connected inside the rotating hole, a chute is formed in the bottom of the rotating block, a sliding block is movably connected inside the chute, an external fixedly connected with fixing rod of the sliding block, an external fixedly connected with fixing top plate of the fixing rod, and a through hole is formed in the top of the fixture frame.
Preferably, the lifting shaft is movably connected with the positioning upright post, and the surface of the lifting shaft is provided with helical thread teeth.
Preferably, the number of the connecting rods is two, the two connecting rods are respectively connected to the fixed circular ring and are symmetrical about the circle center of the fixed circular ring.
Preferably, the positioning ring and the fixing ring are the same in size.
Preferably, the number of the bearings is two, and the two bearings are respectively fixed at the upper end and the lower end inside the mounting table.
Preferably, the rotating plane bearing is fixedly connected with the mounting table.
Preferably, the axes of the centering fixture and the rotating platform are in the same straight line.
Preferably, the inclined grooves are three and are symmetrically distributed about the center of the rotating block.
Preferably, the slide block, the fixed rod and the fixed top plate are respectively provided with three parts, the three parts are divided into three groups to be connected with each other in a halving mode, and the slide block is movably connected inside the chute.
Preferably, the through hole and the rotation hole are matched in size.
(III) advantageous effects
Compared with the prior art, the invention provides a gear positioning and processing device based on a three-roller centering principle and a using method thereof, and the device has the following beneficial effects:
1. this gear location processingequipment based on three-roller centering principle uses through the cooperation of lift xarm and location ring to reach the effect of fixing the gear from the top, prevented that the gear from producing the axial runout in the course of working, influence the machining precision.
2. According to the gear positioning and processing device based on the three-roller centering principle, when the rotary platform supports the gear to be processed, the tooth part is suspended, and the damage of a cutter due to collision on the rotary platform II can be avoided.
3. According to the gear positioning and processing device based on the three-roller centering principle, the axes of the rotary platform and the centering clamp are in the same straight line, so that when the centering clamp determines the center of the gear, the centering clamp and the axis of the rotary platform are in the same straight line, and the processing precision of the gear is guaranteed.
4. This gear location processingequipment based on three-roller centering principle uses through the cooperation of rotatory piece and dead lever, can confirm the gear axle center automatically and press from both sides tight gear, ensures gear machining precision.
Drawings
FIG. 1 is a schematic view of a main structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the structural mounting table and the rotary platform of the present invention;
FIG. 3 is an enlarged schematic view of the connecting section of the fixing ring and the positioning ring according to the present invention;
FIG. 4 is a cross-sectional view of a structural centering fixture of the present invention;
FIG. 5 is a schematic view of the connection between the fixing rod and the chute according to the present invention;
FIG. 6 is a schematic sectional view of the structure of the present invention, showing the connection between the fixing rod and the chute.
In the figure: 1-bracket, 2-pin planing upright post, 3-transverse moving rack, 4-longitudinal moving rack, 5-cutter fixing seat, 6-cutter, 7-positioning upright post, 8-lifting motor, 9-lifting shaft, 10-lifting gear, 11-fixing shaft, 12-lifting cross arm, 13-lifting positioning rod, 14-connecting rod, 15-fixing ring, 16-positioning plane bearing, 17-positioning ring, 18-mounting table, 19-fixing bolt I, 20-fixing bolt II, 21-bearing, 22-rotating shaft, 23-transmission rod, 24-rotating motor, 25-rotating platform, 26-rotating plane bearing, 27-centering clamp, 271-clamp frame, 272-rotating block, 271-rotating block, 273-rotation hole, 274-positioning pin, 275-inclined groove, 276-sliding block, 277-fixing rod, 278-fixing top plate and 279-through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a gear positioning and processing device based on three-roller centering principle and a using method thereof, includes a bracket 1, a planing pin column 2 is fixedly connected to the left side of the bracket 1, a transverse moving frame 3 is movably connected to the top end of the planing pin column 2, a longitudinal moving frame 4 is movably connected to the right side of the transverse moving frame 3, a tool fixing seat 5 is fixedly connected to the bottom end of the longitudinal moving frame 4, a tool 6 is movably connected to the outside of the tool fixing seat 5, a positioning column 7 is fixedly connected to the right side of the bracket 1, a lifting motor 8 is fixedly connected to the inside of the positioning column 7, a lifting shaft 9 is fixedly connected to the top of the lifting motor 8, the lifting shaft 9 is movably connected to the positioning column 7, inclined thread teeth are arranged on the surface of the lifting shaft 9, a lifting gear 10 is movably connected to the outside of the lifting shaft, the outside fixedly connected with of fixed axle 11 goes up and down xarm 12, the inside swing joint of going up and down xarm 12 has lift locating lever 13, the bottom fixedly connected with connecting rod 14 of going up and down xarm 12, the bottom fixedly connected with fixed ring 15 of connecting rod 14, connecting rod 14 has two, connect respectively on fixed ring 15, and the centre of a circle symmetry about fixed ring 15, the bottom fixedly connected with location plane bearing 16 of fixed ring 15, the bottom fixedly connected with location ring 17 of location plane bearing 16, location ring 17 and fixed ring 15 size are the same, use through the cooperation of going up and down xarm 12 and location ring 17, thereby the effect of fixed gear from the top has been reached, prevent that the gear from producing axial runout in the course of working, influence the machining precision.
The top of the bracket 1 is fixedly connected with an installation platform 18, the inside of the installation platform 18 is movably connected with a first fixing bolt 19 and a second fixing bolt 20, the inside of the installation platform 18 is fixedly connected with two bearings 21, the two bearings 21 are respectively fixed at the upper end and the lower end inside the installation platform 18, the inside of the bearing 21 is fixedly connected with a rotating shaft 22, the inside of the rotating shaft 22 is fixedly connected with a transmission rod 23, the bottom of the transmission rod 23 is fixedly connected with a rotating motor 24, the top of the rotating shaft 22 is fixedly connected with a rotating platform 25, when the rotating platform 25 supports gear machining, a tooth part is suspended, the damage of a cutter 6 caused by collision with the second rotating platform 25 can be avoided, the bottom of the rotating platform 25 is fixedly connected with a rotating plane bearing 26, the rotating plane bearing 26 is fixedly connected with the installation platform 18, the top of the rotating platform 25 is fixedly connected with a centering clamp 27, and, when the centering fixture 27 is used for determining the center of the gear, the centering fixture is also in the same straight line with the axis of the rotary platform 25, so that the machining precision of the gear is ensured.
The centering clamp 27 comprises a clamp frame 271, a rotating block 272 is movably connected inside the clamp frame 271, the rotating block 272 is internally provided with a rotating hole 273, the rotating hole 273 is internally movably connected with a positioning pin 274, the bottom of the rotating block 272 is provided with three inclined slots 275, the inclined slots 275 are symmetrically distributed around the center of the circle of the rotating block 272, the inclined slots 275 are internally and movably connected with a sliding block 276, the outer part of the sliding block 276 is fixedly connected with a fixing rod 277, through the cooperation use of rotatory piece 272 and dead lever 277, can confirm the gear axle center automatically and press from both sides tight gear, ensure gear machining precision, the fixed roof 278 of outside fixedly connected with of dead lever 277, slider 276, dead lever 277 and fixed roof 278 respectively have threely, divide equally three group interconnect, slider 276 swing joint is inside chute 275, through-hole 279 has been seted up at the top of anchor clamps frame 271, through-hole 279 and rotatory hole 273 size are the same.
The working principle is that during machining, a gear is placed on the rotary platform 25, the central hole is placed outside the centering fixture 27, the rotary hole 273 is rotated through a wrench, the rotary block 272 is driven to rotate, the chute 275 pushes the slide block 276 to move outwards, the slide block 276 pushes the fixed rod 277 and the fixed top plate 278 to move outwards and clamp the gear, the axis of the gear is determined at the same time, the axis of the gear and the axis of the centering fixture 27 are ensured to be in the same straight line, the lifting motor 8 rotates to drive the lifting shaft 9 to rotate, the lifting shaft 9 drives the lifting gear 10 to rotate, the lifting shaft 9 is meshed with the lifting gear 10 to drive the lifting gear 10 to descend, the lifting gear 10 drives the lifting cross arm 12 to descend, the lifting cross arm 12 drives the positioning ring 17 to descend, the positioning ring 17 compresses the gear, the gear is prevented from axially jumping, the machining precision is ensured, when the lifting motor 8 rotates reversely, the lifting, the rotating hole 273 is rotated in the reverse direction, the fixed top plate 278 is moved inward, and the gear is removed.
In summary, the gear positioning and processing device based on the three-roller centering principle achieves the effect of fixing the gear from the upper part by matching the lifting cross arm 12 and the positioning circular ring 17, and prevents the gear from generating axial jumping in the processing process to influence the processing precision.
Meanwhile, when the rotary platform 25 supports the gear to be machined, the tooth part is suspended, and the damage of the cutter 6 due to collision with the rotary platform 25 can be avoided.
Meanwhile, the axes of the rotating platform 25 and the centering clamp 27 are in the same straight line, so that when the centering clamp 27 determines the center of the gear, the axes of the rotating platform 25 and the centering clamp are in the same straight line, and the machining precision of the gear is ensured.
Meanwhile, the rotating block 272 and the fixing rod 277 are used in a matched mode, so that the axis of the gear can be automatically determined, the gear can be clamped, and the machining precision of the gear can be guaranteed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a gear positioning processingequipment based on three-roller centering principle, includes support (1), its characterized in that: the support is characterized in that a pin planing column (2) is fixedly connected to the left side of the support (1), a transverse moving frame (3) is movably connected to the top end of the pin planing column (2), a longitudinal moving frame (4) is movably connected to the right side of the transverse moving frame (3), a cutter fixing seat (5) is fixedly connected to the bottom end of the longitudinal moving frame (4), a cutter (6) is movably connected to the outer portion of the cutter fixing seat (5), a positioning column (7) is fixedly connected to the right side of the support (1), a lifting motor (8) is fixedly connected to the inner portion of the positioning column (7), a lifting shaft (9) is fixedly connected to the top portion of the lifting motor (8), the lifting shaft (9) is movably connected to the positioning column (7), inclined thread teeth are arranged on the surface of the lifting shaft (9), and a lifting gear (10) is movably connected to the outer portion of, a fixed shaft (11) is fixedly connected to the inside of the lifting gear (10), a lifting cross arm (12) is fixedly connected to the outside of the fixed shaft (11), a lifting positioning rod (13) is movably connected to the inside of the lifting cross arm (12), two connecting rods (14) are fixedly connected to the bottom of the lifting cross arm (12), the two connecting rods (14) are respectively connected to the fixed rings (15) and are symmetrical about the circle center of the fixed rings (15), the fixed rings (15) are fixedly connected to the bottom of the connecting rods (14), a positioning plane bearing (16) is fixedly connected to the bottom of the fixed rings (15), a positioning ring (17) is fixedly connected to the bottom of the positioning plane bearing (16), an installation table (18) is fixedly connected to the top of the support (1), and a first fixing bolt (19) and a second fixing bolt (20) are movably connected to the inside of the installation table (18), a bearing (21) is fixedly connected to the inside of the mounting table (18), a rotating shaft (22) is fixedly connected to the inside of the bearing (21), a transmission rod (23) is fixedly connected to the inside of the rotating shaft (22), a rotating motor (24) is fixedly connected to the bottom of the transmission rod (23), a rotating platform (25) is fixedly connected to the top of the rotating shaft (22), a rotating plane bearing (26) is fixedly connected to the bottom of the rotating platform (25), and a centering clamp (27) is fixedly connected to the top of the rotating platform (25);
the centering fixture (27) comprises a fixture frame (271), a rotating block (272) is movably connected inside the fixture frame (271), a rotating hole (273) is formed inside the rotating block (272), a positioning pin (274) is movably connected inside the rotating hole (273), a chute (275) is formed in the bottom of the rotating block (272), a sliding block (276) is movably connected inside the chute (275), a fixing rod (277) is fixedly connected outside the sliding block (276), a fixing top plate (278) is fixedly connected outside the fixing rod (277), and a through hole (279) is formed in the top of the fixture frame (271).
2. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the positioning ring (17) and the fixing ring (15) are the same in size.
3. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the two bearings (21) are respectively fixed at the upper end and the lower end in the mounting table (18).
4. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the rotating plane bearing (26) is fixedly connected with the mounting table (18).
5. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the axes of the centering clamp (27) and the rotary platform (25) are in the same straight line.
6. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the three inclined grooves (275) are symmetrically distributed about the center of the rotating block (272).
7. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the sliding blocks (276), the fixing rods (277) and the fixing top plate (278) are respectively three, the three groups are divided into three groups to be connected with each other in a halving mode, and the sliding blocks (276) are movably connected inside the inclined grooves (275).
8. The gear positioning and processing device based on the three-roller centering principle according to claim 1, wherein: the through hole (279) and the rotating hole (273) have the same size.
9. The use method of the gear positioning and processing device based on the three-roller centering principle according to any one of claims 1 to 8, characterized in that: during processing, a gear is placed on a rotating platform (25), a central hole is placed outside a centering fixture (27), a wrench is used for rotating a rotating hole (273), a rotating block (272) is driven to rotate, a chute (275) pushes a sliding block (276) to move outwards, the sliding block (276) pushes a fixed rod (277) and a fixed top plate (278) to move outwards and clamp the gear, the axis of the gear is determined at the same time, the axis of the gear and the axis of the centering fixture (27) are ensured to be in the same straight line, a lifting motor (8) rotates to drive a lifting shaft (9) to rotate, the lifting shaft (9) drives a lifting gear (10) to rotate, the lifting shaft (9) is meshed with the lifting gear (10) to drive the lifting gear (10) to descend, the lifting gear (10) drives a lifting cross arm (12) to descend, the lifting cross arm (12) drives a positioning ring (17) to descend, the positioning ring (17) compresses the gear, and axial, and the machining precision is ensured, when the machining is finished, the lifting motor (8) rotates reversely, the lifting cross arm (12) ascends to drive the positioning circular ring (17) to ascend, the rotating hole (273) rotates reversely, the fixed top plate (278) moves inwards, and the gear is taken down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010376659.2A CN111408802B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle and use method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010376659.2A CN111408802B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle and use method thereof |
| CN201910773182.9A CN110369810B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910773182.9A Division CN110369810B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle |
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| Publication Number | Publication Date |
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| CN111408802A CN111408802A (en) | 2020-07-14 |
| CN111408802B true CN111408802B (en) | 2021-03-09 |
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| CN201910773182.9A Active CN110369810B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle |
| CN202010376659.2A Active CN111408802B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle and use method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910773182.9A Active CN110369810B (en) | 2019-08-21 | 2019-08-21 | Gear positioning and processing device based on three-roller centering principle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673204A (en) * | 2020-06-17 | 2020-09-18 | 秦川机床工具集团股份公司 | Gear angle rapid alignment positioning device and positioning method for gear grinding |
| CN112170981A (en) * | 2020-09-21 | 2021-01-05 | 滁州市共赢汽车配件有限公司 | Clamp for producing clutch gear parts |
| CN112388037A (en) * | 2020-11-25 | 2021-02-23 | 安徽信息工程学院 | Clutch pressure plate clamp |
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|---|---|---|---|---|
| SU1002128A1 (en) * | 1981-01-04 | 1983-03-07 | Курганский машиностроительный институт | Method of centring toothed gears at shaving |
| JP5103225B2 (en) * | 2008-02-29 | 2012-12-19 | 株式会社コガネイ | Chuck device |
| CN103692248A (en) * | 2012-08-20 | 2014-04-02 | 克林格伦贝格股份公司 | Chucking device, integral system and method for mechanically chucking or loosening chucked object |
| CN106346088A (en) * | 2016-10-13 | 2017-01-25 | 重庆清平机械有限责任公司 | Duplicate gear positioning and centering clamp |
| CN207043462U (en) * | 2017-05-27 | 2018-02-27 | 宁波珈多利机械有限公司 | A kind of broaching machine self-centering apparatus |
| CN109865899A (en) * | 2017-12-01 | 2019-06-11 | 李翔 | A kind of large aperture gear ring gear-hobbing clamp |
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2019
- 2019-08-21 CN CN201910773182.9A patent/CN110369810B/en active Active
- 2019-08-21 CN CN202010376659.2A patent/CN111408802B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1002128A1 (en) * | 1981-01-04 | 1983-03-07 | Курганский машиностроительный институт | Method of centring toothed gears at shaving |
| JP5103225B2 (en) * | 2008-02-29 | 2012-12-19 | 株式会社コガネイ | Chuck device |
| CN103692248A (en) * | 2012-08-20 | 2014-04-02 | 克林格伦贝格股份公司 | Chucking device, integral system and method for mechanically chucking or loosening chucked object |
| CN106346088A (en) * | 2016-10-13 | 2017-01-25 | 重庆清平机械有限责任公司 | Duplicate gear positioning and centering clamp |
| CN207043462U (en) * | 2017-05-27 | 2018-02-27 | 宁波珈多利机械有限公司 | A kind of broaching machine self-centering apparatus |
| CN109865899A (en) * | 2017-12-01 | 2019-06-11 | 李翔 | A kind of large aperture gear ring gear-hobbing clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110369810B (en) | 2020-06-23 |
| CN110369810A (en) | 2019-10-25 |
| CN111408802A (en) | 2020-07-14 |
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Effective date of registration: 20230619 Address after: 523000 Room 101, building 2, No. 63, Lianhu Road, Chang'an Town, Dongguan City, Guangdong Province Patentee after: Dongguan Jiachi Machinery Manufacturing Co.,Ltd. Address before: Room 325, No.46, Guangji Road, Lizhu Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: Shaoxing Huahuo Intelligent Equipment Co.,Ltd. |
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