CN114772151B - Circuit board welding transfer chain - Google Patents
Circuit board welding transfer chain Download PDFInfo
- Publication number
- CN114772151B CN114772151B CN202210214951.3A CN202210214951A CN114772151B CN 114772151 B CN114772151 B CN 114772151B CN 202210214951 A CN202210214951 A CN 202210214951A CN 114772151 B CN114772151 B CN 114772151B
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- CN
- China
- Prior art keywords
- conveying
- circuit board
- connecting belt
- conveying unit
- driving wheel
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/10—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface
- B65G15/12—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts
- B65G15/20—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts arranged side by side, e.g. for conveyance of flat articles in vertical position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/58—Belts or like endless load-carriers with means for holding or retaining the loads in fixed position, e.g. magnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/10—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
- B65G21/12—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of position of load-carrier or traction element as a whole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
- B65G41/001—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base
- B65G41/003—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base mounted for linear movement only
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
Abstract
The invention discloses a circuit board welding conveying line, which belongs to the technical field of conveying lines and comprises two conveying belts which are arranged in parallel, wherein a gap for conveying a circuit board is reserved between the two conveying belts, each conveying belt comprises an upper conveying unit and a lower conveying unit, the upper conveying unit and the lower conveying unit are distributed up and down, and the distance between the upper conveying unit and the lower conveying unit is adjustable; the upper conveying unit comprises a first connecting belt capable of conveying, the lower conveying unit comprises a second connecting belt capable of conveying, a plurality of clamping bodies are uniformly distributed on the outer walls of the first connecting belt and the second connecting belt, two clamping bodies corresponding to each other up and down are in a group, and the circuit board can be clamped by the clamping bodies in the group. The invention clamps and fixes two sides, runs stably, and ensures that welding equipment is positioned more accurately and is not easy to generate deviation; the clamping area is small, the reserved welding area is large, and the circuit board capable of being matched is wider.
Description
Technical Field
The invention relates to a circuit board welding conveying line, and belongs to the technical field of conveying lines.
Background
The welding method occupies more welding time and takes the equipment, and the conventional conveying device only has a conveying function, so that the circuit board placed on the conveying device is easy to cause position deviation in the conveying process, and the circuit board can be damaged due to positioning deviation in the taking process of the taking equipment.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a circuit board welding and conveying line which can realize accurate positioning and stable conveying.
In order to achieve the purpose, the invention adopts the following technical scheme: a circuit board welding conveying line comprises two conveying belts which are arranged in parallel, a gap for conveying a circuit board is reserved between the two conveying belts, each conveying belt comprises an upper conveying unit and a lower conveying unit, the upper conveying unit and the lower conveying unit are distributed vertically, and the distance between the upper conveying unit and the lower conveying unit is adjustable;
the upper conveying unit comprises a first connecting belt capable of conveying, the lower conveying unit comprises a second connecting belt capable of conveying, a plurality of clamping bodies are uniformly distributed on the outer walls of the first connecting belt and the second connecting belt, two clamping bodies corresponding to each other up and down are in a group, and the circuit board can be clamped by the clamping bodies in the group.
Preferably, the upper conveying unit comprises a first driving wheel, a first driven wheel and a first connecting belt sleeved outside the first driving wheel and the first driven wheel, and the lower conveying unit comprises a second driving wheel, a second driven wheel and a second connecting belt sleeved outside the second driving wheel and the second driven wheel.
Preferably, the surface of the second connecting belt is provided with a plurality of guide rods which are uniformly arranged, one ends of the guide rods, far away from the second connecting belt, are inserted into the first connecting belt in a sliding mode, the inner sides of the first connecting belt and the second connecting belt are symmetrically provided with two guide belts, the first driving wheel, the first driven wheel, the second driving wheel and the second driven wheel are respectively provided with an annular groove, and the guide belts are clamped into the annular grooves.
Preferably, the cross section of the clamping body is in a right trapezoid shape, a pressing strip is installed on the outer side of the clamping body, the pressing strip is scaled according to the clamping body, the oblique waist of the pressing strip and the oblique waist of the clamping body are in the same plane, and a positioning block is installed at one end of the pressing strip.
Preferably, the first connecting band and the second connecting band are respectively and fixedly connected with the corresponding clamping bodies.
Preferably, the second connecting band is fixedly connected with the corresponding clamping body, a sliding groove is formed in the side wall of the first connecting band, a sliding block is installed on the side wall of the clamping body matched with the first connecting band, and the sliding block is installed inside the sliding groove in a sliding mode through a spring.
Preferably, a driving groove is formed in the second driving wheel, a first gear and a second gear which are meshed with each other are installed in the driving groove in a rotating mode, teeth are arranged on the inner side of the second connecting belt and are connected with each other in a meshed mode, and a driving device used for driving the second driving wheel to rotate is installed at the bottom of the second driving wheel.
Preferably, separation oil cylinders are installed at the inner centers of the first driving wheel and the first driven wheel, and the output ends of the separation oil cylinders are connected to the second driving wheel and the second driven wheel correspondingly.
Preferably, a welding device is installed between the two conveying belts, and a welding gun for welding the circuit board is arranged on the welding device.
The invention also provides a manufacturing method of the circuit board welding conveying line, which comprises the following steps:
compared with the prior art, the circuit board is arranged between the two conveying belts for conveying, the two sides of the circuit board are clamped and fixed, the operation is stable, and the welding equipment is positioned more accurately and is not easy to generate deviation; the upper conveying unit and the lower conveying unit are arranged on the conveying belt, the side walls of the circuit boards can be clamped by the upper conveying unit and the lower conveying unit, the clamping area is small, the reserved welding area is large, and the circuit boards which can be adapted to the circuit boards are wider; the distance between the upper conveying unit and the lower conveying unit is adjustable, the circuit boards with different thicknesses can be adapted, and the circuit boards are not easy to damage.
Drawings
FIG. 1 is a top view of the present invention.
Fig. 2 is a schematic structural diagram of the conveyor belt of the present invention.
Fig. 3 is a front partial view of the conveyor belt of the present invention.
Fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A of fig. 3 in accordance with the present invention.
Fig. 5 is a cross-sectional view taken at B-B of fig. 4 in accordance with the present invention.
Fig. 6 is an enlarged view of the invention at C in fig. 4.
In the figure: 1. the device comprises a conveying belt, 2, welding equipment, 3, first driving wheels, 4, first connecting belts, 5, a clamping body, 51, a positioning block, 52, a pressing strip, 6, first gears, 7, second driving wheels, 8, second gears, 9, a separating oil cylinder, 10, a guide belt, 11, a guide rod, 12 and a second connecting belt.
Detailed Description
The present invention is illustrated by the following specific examples, which are not intended to be limiting.
Examples
As shown in fig. 1-3, in this embodiment, a circuit board welding and conveying line is provided, which includes two parallel conveying belts 1, a gap for conveying a circuit board is left between the two conveying belts 1, the circuit board is horizontally arranged between the two conveying belts 1, the conveying belts 1 can drive the circuit board to move during conveying, the conveying belts 1 include an upper conveying unit and a lower conveying unit, the upper conveying unit and the lower conveying unit are distributed vertically, an interval between the upper conveying unit and the lower conveying unit is adjustable, different circuit boards have different thicknesses, the interval adjustment between the upper conveying unit and the lower conveying unit can be applied to different types of circuit boards, and the distance between the two conveying belts 1 can also be changed in a debugging machine, so that the circuit boards with different sizes can be applied, the conveying belts 1 are mounted on a bracket, and the distance adjustment between the brackets is a common adjustment manner in automated processing, which is a prior art, so the present invention is not specifically described;
as shown in fig. 3-6, the upper conveying unit includes a first driving wheel 3, a first driven wheel and a first connecting belt 4 sleeved outside the first driving wheel 3 and the first driven wheel, the lower conveying unit includes a second driving wheel 7, a second driven wheel and a second connecting belt 12 sleeved outside the second driving wheel 7 and the second driven wheel, the first connecting belt 4 and the second connecting belt 12 are made of steel, the first driving wheel 3 and the first driven wheel are both provided with a separating cylinder 9 at the inner center, the output end of the separating cylinder 9 is connected to the second driving wheel 7 and the second driven wheel, the distance between the corresponding driving wheel and the corresponding driven wheel can be adjusted by extending and shortening the output end of the separating cylinder 9, because the first connecting belt 4 and the second connecting belt 12 are made of steel, the connecting belt is installed on the corresponding driving wheel and the corresponding driven wheel, and the driving wheel and the driven wheel are moved, the connecting belt can also move up and down along with the connecting belt, the plurality of separating oil cylinders 9 are connected and controlled by a single controller to realize synchronous movement, a plurality of guide rods 11 which are uniformly arranged are arranged on the surface of the connecting belt II 12, one ends, far away from the connecting belt II 12, of the guide rods 11 are inserted into the connecting belt I4 in a sliding mode, the guide rods 11 are more in number, dislocation between the connecting belt I4 and the connecting belt II 12 can be avoided, the guide rods can only move up and down in the vertical direction, two guide belts 10 are symmetrically arranged on the inner sides of the connecting belt I4 and the connecting belt II 12, the driving wheel I3, the driven wheel I, the driving wheel II 7 and the driven wheel II are provided with annular grooves, the guide belts 10 are clamped into the annular grooves, the guide belts 10 are used for supporting the connecting belt I4 and the connecting belt II 12, the connecting belt I4 and the connecting belt II 12 are guaranteed to be clamped on the corresponding driving wheel and the driven wheel, and the connecting belt is prevented from being separated, the first connecting band 4 and the second connecting band 12 are fixedly connected with the corresponding clamping bodies 5 respectively, the clamping bodies 5 are made of soft rubber, the rubber has an anti-skidding effect, the rubber is not prone to damage to a circuit board, the two clamping bodies 5 corresponding to the upper portion and the lower portion are in a group, the single circuit board can be clamped by the group of clamping bodies 5, the group of clamping bodies 5 are located in one station, the positioning block 51 is installed at one end of each clamping body 5, the pressing strips 52 are installed on the outer sides of the corresponding clamping bodies 5, the pressing strips 52 are scaled according to the proportion, the inclined waist of the pressing strips 52 and the inclined waist of the clamping bodies 5 are located in the same plane, the positioning block 51 is installed at one end of each pressing strip 52, the side of the circuit board is arranged between the two pressing strips 52, the area, the width of each pressing strip 52 is narrow, the clamping area is small, the shape of each clamping body 5 is in a shape of the inclined waist of the right-angle trapezoid, the welding gun can conveniently contact with the circuit board, the positioning block 51 is used for positioning function of the circuit board, one side of the circuit board is abutted against the positioning block 51, and welding spots can be accurately determined.
Combine shown in fig. 5, the drive groove has been seted up to the inside of two 7 of drive wheels, the internal rotation in drive groove installs intermeshing's first 6 and two 8 gears, the inboard of two 12 connecting bands is equipped with the tooth, first 6 gears and tooth meshing are connected, the bottom of two 7 of drive wheels is installed and is used for two 8 pivoted drive arrangement of drive gear, and drive arrangement can be step motor, and two 8 gears drive first 6 rotations of gear, and first 6 gears drive two 12 conveying of connecting band, and connecting band two 12 and connecting band 4 are connected through a plurality of guide bar 11, and then realize connecting band two 12 and connecting band one 4 simultaneously, with fast motion.
As shown in fig. 1, a welding device 2 is installed between the two conveyor belts 1, a welding gun for performing welding work on the circuit board is disposed on the welding device 2, and the welding position of the welding gun is edited in advance by a program.
Example two
Combine fig. 4 and fig. 6 to show, connecting band two 12 and the 5 fixed connection of the tight body of clamp that corresponds, seted up the spout on the lateral wall of connecting band one 4, and install the slider on the tight body of clamp 5 lateral wall of connecting band one 4 adaptations, the slider passes through spring slidable mounting inside the spout, and the tight body of clamp 5 passes through slider and spring slidable mounting on connecting band one 4, realizes that the tight body of clamp 5 has a buffering effect when pressing from both sides tight circuit board, can avoid causing the damage to the circuit board.
The working principle is as follows: the driving device drives the second gear 8 to rotate, the second gear 8 drives the second connecting belt 12 to move through the first gear 6, when the driving device is a stepping motor, the conveying belt 1 automatically stops after conveying a station, conveying equipment or a mechanical arm of a previous process of the device puts a circuit board to be welded into an upper conveying unit and a lower conveying unit from an inclined opening with a wide end width of the device, one side of the circuit board is abutted against a positioning block 51, the positioning block 51 positions the circuit board, the stepping motor is started to drive the circuit board to move forward for one station and then stops, the actions are repeated, the next circuit board is continuously installed, when the circuit board moves to the position of the welding device, due to the positioning function of the positioning block 51 on the circuit board, welding work can be directly carried out, and after welding is finished, the circuit board is discharged from one end far away from a discharging end.
Finally, it should be noted that the above embodiments are only used for illustrating and not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the present invention, and all modifications or partial replacements should be covered in the claims of the present invention.
Claims (8)
1. The circuit board welding conveying line is characterized by comprising two conveying belts (1) which are arranged in parallel, a gap for conveying a circuit board is reserved between the two conveying belts (1), each conveying belt (1) comprises an upper conveying unit and a lower conveying unit, the upper conveying unit and the lower conveying unit are distributed up and down, and the distance between the upper conveying unit and the lower conveying unit is adjustable;
the upper conveying unit comprises a first connecting belt (4) capable of conveying, the lower conveying unit comprises a second connecting belt (12) capable of conveying, a plurality of clamping bodies (5) are uniformly distributed on the outer walls of the first connecting belt (4) and the second connecting belt (12), two clamping bodies (5) corresponding to each other up and down are in a group, and the circuit board can be clamped by one group of clamping bodies (5);
the cross section of the clamping body (5) is in a right trapezoid shape, a pressing strip (52) is installed on the outer side of the clamping body (5), the pressing strip (52) is scaled according to the proportion of the clamping body (5), the oblique waist of the pressing strip (52) and the oblique waist of the clamping body (5) are located in the same plane, and a positioning block (51) is installed at one end of the pressing strip (52).
2. The circuit board welding conveying line according to claim 1, wherein the upper conveying unit comprises a first driving wheel (3), a first driven wheel and a first connecting belt (4) sleeved outside the first driving wheel (3) and the first driven wheel, and the lower conveying unit comprises a second driving wheel (7), a second driven wheel and a second connecting belt (12) sleeved outside the second driving wheel (7) and the second driven wheel.
3. The circuit board welding conveying line according to claim 2, wherein a plurality of guide rods (11) are uniformly arranged on the surface of the second connecting belt (12), one ends, far away from the second connecting belt (12), of the guide rods (11) are inserted into the first connecting belt (4) in a sliding mode, two guide belts (10) are symmetrically arranged on the inner sides of the first connecting belt (4) and the second connecting belt (12), annular grooves are formed in the first driving wheel (3), the first driven wheel, the second driving wheel (7) and the second driven wheel, and the guide belts (10) are clamped into the annular grooves.
4. The circuit board welding conveying line according to claim 1, wherein the first connecting band (4) and the second connecting band (12) are respectively and fixedly connected with the corresponding clamping bodies (5).
5. The circuit board welding conveying line according to claim 1, wherein the second connecting band (12) is fixedly connected with the corresponding clamping body (5), a sliding groove is formed in a side wall of the first connecting band (4), a sliding block is mounted on a side wall of the clamping body (5) matched with the first connecting band (4), and the sliding block is slidably mounted inside the sliding groove through a spring.
6. The circuit board welding conveying line according to claim 2, wherein a driving groove is formed in the driving wheel II (7), a first gear (6) and a second gear (8) which are meshed with each other are rotatably mounted in the driving groove, teeth are arranged on the inner side of the connecting belt II (12), the first gear (6) is meshed with the teeth, and a driving device for driving the second gear (8) to rotate is mounted at the bottom of the driving wheel II (7).
7. The circuit board welding conveying line according to claim 2, wherein a separation oil cylinder (9) is mounted at each of the centers of the inner portions of the first driving wheel (3) and the first driven wheel, and the output end of each separation oil cylinder (9) is connected to the corresponding second driving wheel (7) and the corresponding second driven wheel.
8. The circuit board welding conveying line according to claim 1, characterized in that a welding device (2) is installed between the two conveying belts (1), and a welding gun for performing welding work on the circuit board is arranged on the welding device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210214951.3A CN114772151B (en) | 2022-03-07 | 2022-03-07 | Circuit board welding transfer chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210214951.3A CN114772151B (en) | 2022-03-07 | 2022-03-07 | Circuit board welding transfer chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114772151A CN114772151A (en) | 2022-07-22 |
| CN114772151B true CN114772151B (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210214951.3A Active CN114772151B (en) | 2022-03-07 | 2022-03-07 | Circuit board welding transfer chain |
Country Status (1)
| Country | Link |
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| CN (1) | CN114772151B (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840224A (en) * | 1957-04-24 | 1958-06-24 | Baljak Corp | Conveying devices for accelerating and timing articles |
| EP1215122A1 (en) * | 2000-12-13 | 2002-06-19 | SIG Pack Systems AG | Conveyor device for making and loading groups of containers |
| FR2846314B1 (en) * | 2002-10-25 | 2005-08-19 | Bsn Glasspack | MACHINE FOR MOVING CONTAINERS INTO CONTROL POSTS |
| CN203448835U (en) * | 2013-09-12 | 2014-02-26 | 海宁市美裕晟电子有限公司 | Conveyor on crest welder |
| CN103523532A (en) * | 2013-10-22 | 2014-01-22 | 安徽三只松鼠电子商务有限公司 | Vertical walking automatic scanning stream-lined device |
| CN205023312U (en) * | 2015-05-15 | 2016-02-10 | 上海东富龙科技股份有限公司 | Formula elasticity conveyor is pressed from both sides to side |
| CN205998516U (en) * | 2016-08-31 | 2017-03-08 | 成都恒瑞制药有限公司 | A kind of medicine packing box transporter |
| CN107371329B (en) * | 2017-07-20 | 2023-06-23 | 平湖市专博先进技术与转化研究院 | PCB clamping and conveying device for baby carrier |
| CN110182543A (en) * | 2019-07-06 | 2019-08-30 | 南京林业大学 | A kind of desert shrub conveying device |
| CN110641777B (en) * | 2019-11-28 | 2020-08-25 | 山东交通职业学院 | Filling container gas tightness detects bottle unscrambler for production line |
| CN211495576U (en) * | 2019-12-18 | 2020-09-15 | 河北伟新锻造有限公司 | Forging is centre gripping conveyer in batches |
| CN212291542U (en) * | 2020-04-13 | 2021-01-05 | 深圳华视电子读写设备有限公司 | Card formula certificate transport mechanism |
| CN212665124U (en) * | 2020-07-08 | 2021-03-09 | 田讯电子(烟台)有限公司 | Crest welder |
| CN213169887U (en) * | 2020-08-21 | 2021-05-11 | 广州新视智能设备有限公司 | Press from both sides bottle belt device and empty bottle check out test set |
-
2022
- 2022-03-07 CN CN202210214951.3A patent/CN114772151B/en active Active
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| CN114772151A (en) | 2022-07-22 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A PCB welding conveyor line Effective date of registration: 20230828 Granted publication date: 20221021 Pledgee: Bank of Jiangsu Co.,Ltd. Xuzhou Branch Pledgor: JIANGSU XIANGHE ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023980053842 |
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