CN111302063A - A multi-silicon wafer flip positioning device - Google Patents

Abstract

The invention discloses a multi-silicon-wafer overturning and positioning device, and belongs to the technical field of solar cells. The turnover positioning device comprises a support and a shuttle plate positioning and conveying mechanism, wherein a first sliding module and a battery piece bearing mechanism are arranged on the support, the first sliding module is used for driving a sucker traversing mechanism to slide back and forth to the battery piece bearing mechanism so as to grab a battery piece, a battery piece turnover mechanism used for receiving and taking the battery piece group is arranged at the bottom of the sucker traversing mechanism, and the battery piece turnover mechanism synchronously turns over the received battery piece group and enables the received battery piece group to fall onto the shuttle plate positioning and conveying mechanism for conveying. The invention overcomes the defect that the conveying efficiency of the battery pieces is lower due to the limited overturning quantity of the silicon chips in the prior art, the sucking disc transverse moving mechanism can slide back and forth for multiple times to grab the battery pieces and place the battery pieces on the battery piece overturning mechanism, the battery piece overturning mechanism synchronously overturns a plurality of groups of battery pieces, and the shuttle plate positioning and conveying mechanism simultaneously conveys the plurality of groups of battery pieces to the next station for processing, thereby improving the working efficiency.

Description

A multi-silicon wafer flip positioning device

technical field

The invention belongs to the technical field of solar cells, and more particularly, relates to a multi-silicon wafer flip positioning device.

Background technique

A silicon wafer is a sheet-like object made of silicon. Generally, it is made of crystalline silicon (single crystal silicon) with high purity. The molecular structure of single crystal silicon is very stable. During the production process of the silicon wafer, the silicon wafer needs to be turned over to change the processing surface; in addition, when the silicon wafer is processed, it also needs to be turned over for inspection. to flip.

For example, the patent application number: 2017215027453, the application date: November 13, 2017, the name of the invention is: a silicon wafer turning device, the silicon wafer turning device of this application includes a stage, a telescopic cylinder, a turning assembly and a turntable assembly , the telescopic cylinder is arranged on the bench, the bench is provided with a guide column, the turntable assembly is arranged on the guide column, the turntable assembly and the telescopic cylinder are connected by a telescopic rod, the turntable assembly includes a turntable and a swing cylinder, and the turntable is arranged on the swing cylinder The upper part is connected with the swinging cylinder, and the flipping assembly is arranged above the turntable. The flipping assembly includes a rotating cylinder, a flipping arm, a suction cup and a vacuum generator. The flipping arm is arranged on both sides of the rotating cylinder and is connected with the rotating cylinder. The suction cup It is arranged on the turning arm, the vacuum generator is arranged on the rotating cylinder, and the suction cup is communicated with the vacuum generator. The device can adjust the horizontal position and angle of the flipping component, but is not suitable for flipping multiple silicon wafers, only one silicon wafer can be flipped at a time, and the production efficiency is low.

To sum up, how to overcome the inefficiency of inverting silicon wafers in the prior art and realize synchronous inversion and transportation of multiple groups of silicon wafers is a technical problem that needs to be solved urgently in the prior art.

SUMMARY OF THE INVENTION

1. The technical problem to be solved by the invention

The invention overcomes the problem of low cell transport efficiency caused by the limited number of silicon wafers flipped in the prior art, and provides a multiple silicon wafer flipping and positioning device. It is placed on the cell flipping mechanism. The cell flipping mechanism synchronously flips multiple groups of cell sheets and makes them fall on the shuttle plate positioning and transmission mechanism. The processing is carried out in one position, which improves the work efficiency.

2. Technical solutions

In order to achieve the above object, the technical scheme provided by the invention is:

A multi-silicon wafer flipping and positioning device of the present invention includes a bracket, a suction cup traverse mechanism and a shuttle plate positioning and transmission mechanism. The bracket is provided with a first sliding module and a battery chip carrying mechanism, and the first sliding module is used to drive the suction cup The traverse mechanism slides back and forth to the battery chip carrying mechanism to grab the battery chips. The bottom of the suction cup traverse mechanism is provided with a battery chip flip mechanism for receiving the battery chip group. The battery chip flip mechanism synchronously flips the received battery chip group. And make it fall into the shuttle plate positioning transmission mechanism for transportation.

As a further improvement of the present invention, the suction cup traverse mechanism includes a sliding seat slidably connected to the first sliding module and first vacuum suction cups arranged in an array on the sliding seat, and the first vacuum suction cups are arranged downward to grab the battery slices.

As a further improvement of the present invention, the cell flipping mechanism includes a flipping base and a transmission shaft arranged side by side on the flipping base, the transmission shaft is provided with a second vacuum suction cup, and the second vacuum suction cup is upwardly arranged to receive the battery cell group.

As a further improvement of the present invention, at least one transmission shaft on the flip base is connected with the driving wheel, the other transmission shafts are connected with the synchronizing wheel, and a tensioning wheel is also arranged between the driving wheels.

As a further improvement of the present invention, the shuttle plate positioning and transmission mechanism includes a shuttle plate lifting mechanism and a second sliding module that drives the shuttle plate lifting mechanism to slide to the battery sheet turning mechanism. When the shuttle plate lifting mechanism slides to the battery sheet turning over At the bottom of the mechanism, the vacuum of the second vacuum suction cup fails to release the battery sheet.

As a further improvement of the present invention, the shuttle plate lifting mechanism includes a silicon wafer support plate, the bottom of the silicon wafer support plate is provided with a slider matched with the second sliding module, and the silicon wafer support plate is also provided with a positioning pin.

As a further improvement of the present invention, the positioning pin is driven up and down by the cylinder provided at the bottom of the shuttle plate lifting mechanism. When the cell is placed on the silicon wafer support plate, the cylinder retracts and the cell enters the positioning groove formed by the positioning pin.

As a further improvement of the present invention, the silicon wafer support plate is also provided with a graphite backing plate for placing the battery sheet, and the graphite backing plate is arranged in an array on the silicon wafer support plate.

As a further improvement of the present invention, the positioning pins are arranged along the circumferential direction of each graphite backing plate.

As a further improvement of the present invention, the battery sheet carrying mechanism includes a carrier plate conveying track and a carrier plate arranged on the carrier plate conveying track, and the carrier plate is used to carry the battery pack.

3. Beneficial effects

Adopting the technical scheme provided by the present invention, compared with the prior art, has the following remarkable effects:

(1) In a multi-chip turning and positioning device of the present invention, the suction cup traverse mechanism can slide back and forth for multiple times to grab the battery chips and place them on the battery chip turning mechanism, and the battery chip turning mechanism synchronizes multiple groups of battery chips After being turned over, it is released and falls into the shuttle plate positioning and transmission mechanism at the bottom, and the shuttle plate positioning and transmission mechanism transports multiple groups of battery slices to the next station for processing at the same time, which improves the work efficiency.

(2) A multi-silicon wafer inversion positioning device of the present invention, the cell inversion mechanism includes parallelly arranged transmission shafts, the transmission shafts are respectively provided with second vacuum suction cups, and the second vacuum suction cups are upwardly arranged to receive the battery cell group, Tensioning pulleys are arranged between each transmission wheel, which can realize the synchronous rotation of the transmission shaft, so as to realize the synchronous turning of multiple groups of battery slices, and turn the battery slices in place to ensure the effective realization between the shuttle plate positioning and transmission mechanism and the battery slice turning mechanism. connection.

(3) In a multi-chip flipping positioning device of the present invention, a positioning pin is provided on the shuttle plate lifting mechanism of the shuttle plate positioning transmission mechanism. Realize the positioning of the cells to achieve precise docking.

(4) In a multi-wafer flipping positioning device of the present invention, the positioning pins can be driven up and down by the cylinder provided at the bottom of the shuttle plate lifting mechanism. When the battery sheet is placed on the silicon wafer support plate, the cylinder is retracted and the cell sheet enters In the positioning grooves formed by the positioning pins, and the positioning pins are arranged along the circumferential direction of the graphite backing plates arranged in the array, and each positioning groove corresponds to the battery slices one-to-one, which realizes the simultaneous positioning of multiple battery slices, and improves the efficiency of the shuttle plate lifting mechanism. The positioning accuracy guarantees the quality of cell transportation.

Description of drawings

FIG. 1 is a schematic structural diagram of a multi-wafer flipping positioning device according to the present invention;

2 is a schematic structural diagram of a carrier plate in the present invention;

3 is a schematic diagram of the cooperation between the bracket and the suction cup traverse mechanism in the present invention;

FIG. 4 is a schematic structural diagram of a cell flipping mechanism in the present invention;

Fig. 5 is the structural representation of shuttle plate positioning transmission mechanism in the present invention;

FIG. 6 is a schematic structural diagram of the shuttle board lifting mechanism in the present invention.

Reference number:

100, a bracket; 110, a first sliding module; 111, a first motor;

200, suction cup traverse mechanism; 210, sliding seat; 211, first vacuum suction cup;

300, cell flipping mechanism; 310, second motor; 311, first reducer; 312, tensioning wheel; 313, synchronizing wheel; 314, transmission shaft; 315, second vacuum suction cup; 316, suction cup connecting block;

400, shuttle plate positioning transmission mechanism; 410, shuttle plate lifting mechanism; 411, slider; 412, positioning pin; 413, air cylinder; 414, graphite backing plate; 415, silicon wafer support plate; 420, second sliding module ; 421, the second reducer; 422, the second motor;

500, a cell carrying mechanism; 510, a carrier board conveying track; 520, a carrier board.

Detailed ways

In order to further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments.

Example 1

1 and FIG. 3 , a multi-wafer flipping and positioning device in this embodiment includes a bracket 100 , a suction cup traverse mechanism 200 and a shuttle plate positioning and transmission mechanism 400 . The bracket 100 is provided with a first sliding module 110 and a battery The chip carrying mechanism 500, the first sliding module 110 is used to drive the suction cup traverse mechanism 200 to slide back and forth to the battery chip carrying mechanism 500 to grab the battery chips, and the bottom of the suction cup traverse mechanism 200 is provided with a battery chip for receiving the battery chip group Inverting mechanism 300, the battery cell inversion mechanism 300 synchronously inverts the received battery cell group and makes it fall on the shuttle plate positioning and transmission mechanism 400 for transportation.

In this embodiment, the cell carrier mechanism 500 includes a carrier board conveying track 510 and a carrier board 520 disposed on the carrier board conveying track 510. The carrier board 520 is used to carry a plurality of battery cells. As shown in FIG. The template can be adjusted according to the size of the silicon wafer to meet the loading of cells of different specifications. Specifically, in this embodiment, the bracket 100 is arranged vertically, and the bracket 100 is provided with a first sliding module 110. The first sliding module 110 can drive the suction cup traverse mechanism 200 to slide horizontally along the sliding rail. After the 200 slides to the battery chip carrying mechanism 500, the vacuum generator of the suction cup traverse mechanism 200 is turned on to form a vacuum of the suction cup, and then the battery chips on the battery chip carrying mechanism 500 are adsorbed to realize grasping, and then the first sliding module 110 After driving, the cell is transported to the cell inversion mechanism 300 . At this time, the vacuum breaking valve is opened, the suction cup vacuum fails, and the cell is released and falls onto the cell inversion mechanism 300 .

In this embodiment, the first sliding module 110 can drive the suction cup traverse mechanism 200 to go back and forth between the battery chip carrying mechanism 500 and the battery chip turning mechanism 300 for many times, so as to realize the multiple pick and place of the battery chips. The battery slice turning mechanism 300 can receive the battery slices that are slid back and forth by the suction cup traversing mechanism 200 and turn them synchronously, so that the battery slices are set downward. At this time, the shuttle plate positioning and transmission mechanism 400 moves to the bottom of the battery slice turning mechanism 300 The battery packs are received and then transported. In this embodiment, the first sliding module 110 is driven by the first motor 111 provided on the bracket 100 .

In the multi-chip inversion positioning device of this embodiment, the suction cup traverse mechanism 200 can grab the battery slices multiple times and release them to fall on the battery slice inversion mechanism 300. The sheets are turned over synchronously, and the shuttle plate positioning and transmission mechanism 400 can simultaneously transport multiple groups of cell sheets placed on the cell sheet overturning mechanism 300 to the next station for processing, thereby improving work efficiency.

Specifically, in this embodiment, the suction cup traverse mechanism 200 includes a sliding seat 210 slidably connected to the first sliding module 110 and first vacuum suction cups 211 arranged in an array on the sliding seat 210. The first vacuum suction cups 211 are downwardly disposed to Grasp the battery slices; the battery slice turning mechanism 300 includes a turning base and a transmission shaft 314 arranged in parallel on the turning base, the transmission shaft 314 is provided with a second vacuum suction cup 315, and the second vacuum suction cup 315 is upwardly arranged to receive the battery slices Group.

In this embodiment, suction cup connecting blocks 316 are arranged at equal distances on each transmission shaft 314 , and the suction cup connecting blocks 316 are used to install the second vacuum suction cups 315 . Since the battery slices are relatively brittle and easy to break, the operation requirements such as transportation, transportation and turning are relatively high. In this embodiment, the first vacuum suction cup 211 and the second vacuum suction cup 315 are used to grab the battery slices, which can effectively protect the battery slices. Realize the safe docking of cells. In this embodiment, the battery slice turning mechanism 300 drives the battery slices to turn 180° through the driving transmission shaft 314 , so that the battery slices are downwardly connected to the shuttle plate positioning transmission mechanism 400 . When the shuttle plate positioning and transmission mechanism 400 moves to below the cell flipping mechanism 300 to catch the cell stack, the transmission shaft 314 rotates 180° in the opposite direction to reset the second vacuum suction cup 315 for use in the next flip.

Preferably, in order to realize the synchronous turning of multiple groups of battery slices, improve work efficiency, and ensure that the battery slices are turned in place, in this embodiment, at least one drive shaft 314 on the turning base is connected to the driving wheel 312 , and the other drive shafts 314 are connected to the synchronizing wheel 313 . There is also a tensioning wheel 314 between each transmission wheel. In this embodiment, the tensioner 314 is arranged between the transmission wheels, which can achieve a better transmission effect and prevent the synchronizing wheel 313 from slipping due to the increase in the number of transmission shafts 314, which will eventually cause the rotation of the transmission wheels to be out of synchronization, and the battery slices will not be turned in place. Therefore, the tensioning wheel 314 provided can ensure that each group of battery slices is turned synchronously, and the shuttle plate positioning and transmission mechanism 400 and the battery slice turning mechanism 300 can achieve effective docking.

Example 2

The structure of a multi-wafer flipping and positioning device in this embodiment is basically the same as that in Embodiment 1. Further, the shuttle plate positioning and transmission mechanism 400 in this embodiment includes a shuttle plate holding mechanism 410 and a driving shuttle plate holding mechanism 410 The second sliding module 420 slides toward the cell flipping mechanism 300 , when the shuttle lift mechanism 410 slides to the bottom of the cell flipping mechanism 300 , the second vacuum suction cup 315 fails to vacuum to release the cell.

Specifically, in this embodiment, the second sliding module 420 is driven by the second motor 422 provided on the shuttle positioning and transmission mechanism 400 , and the second sliding module 420 drives the shuttle lifting mechanism 410 to slide in the same direction as the first sliding mode. The direction in which the group 110 drives the suction cup traverse mechanism 200 to slide is vertical, so that it is more convenient to connect the battery sheets to each other.

Preferably, the shuttle plate lifting mechanism 410 includes a silicon wafer support plate 415, the bottom of the silicon wafer support plate 415 is provided with a sliding block 411 matched with the second sliding module 420, and the silicon wafer support plate 415 is also provided with a positioning pin 412 . Since the battery chips released by the battery chip turning mechanism 300 are in multiple groups, the number and the occupied area are relatively large. In this embodiment, the positioning pins 412 are arranged on the silicon chip support plate 415 to realize the positioning of the battery chips, so as to realize the battery chip group. precise connection.

Example 3

The structure of a multi-silicon wafer flipping positioning device in this embodiment is basically the same as that in Embodiment 2. Further, the positioning pin 412 in this embodiment is driven up and down by the cylinder 413 provided at the bottom of the shuttle plate lifting mechanism 410. When the battery When the wafer is placed on the silicon wafer support plate 415 , the cylinder 413 retracts and the cell enters the positioning groove formed by the positioning pins 412 .

In this embodiment, the silicon wafer support plate 415 is also provided with a graphite backing plate 414 for placing the battery chips. The graphite backing plates 414 are arranged in an array on the silicon wafer support plate 415. Preferably, the graphite backing plate 414 is arranged corresponding to each battery chip. , the graphite backing plate 414 can prevent the battery sheet from contacting other material parts and produce contamination, and play an isolation and protection role for the battery sheet.

Further, in this embodiment, the positioning pins 412 are arranged along the circumferential direction of each graphite backing plate 414, that is, the positioning pins 412 arranged in the circumferential direction of each graphite backing plate 414 form positioning grooves, and each positioning groove corresponds to the battery slices one by one, so as to realize multiple Simultaneous positioning of the cell sheets improves the positioning accuracy of the shuttle plate holding mechanism 410 and ensures the conveying quality of the cell sheets.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a many silicon chips upset positioner which characterized in that: including support (100), sucking disc sideslip mechanism (200) and shuttle location transmission device (400), be equipped with first slip module (110) and battery piece bearing mechanism (500) on support (100), first slip module (110) are used for driving sucking disc sideslip mechanism (200) to battery piece bearing mechanism (500) make a round trip to slide in order to snatch the battery piece, sucking disc sideslip mechanism (200) bottom is equipped with battery piece tilting mechanism (300) that are used for connecing the battery piece group, battery piece tilting mechanism (300) are carried out the synchronous upset and are made it fall into to the battery piece group of connecing the taking on shuttle location transmission device (400) and are carried.

2. The multi-silicon-wafer overturning and positioning device of claim 1, wherein: the sucker transverse moving mechanism (200) comprises a sliding seat (210) connected with the first sliding module (110) in a sliding mode and first vacuum suckers (211) arranged on the sliding seat (210) in an array mode, and the first vacuum suckers (211) are arranged downwards to grab the battery pieces.

3. The multi-silicon-wafer overturning and positioning device of claim 1, wherein: the battery piece overturning mechanism (300) comprises an overturning base and transmission shafts (314) arranged on the overturning base in parallel, wherein second vacuum chucks (315) are arranged on the transmission shafts (314), and the second vacuum chucks (315) are upwards arranged to receive and take battery piece groups.

4. The multi-wafer flipping positioning device of claim 3, wherein: at least one transmission shaft (314) on the overturning base is connected with the driving wheel (312), the other transmission shafts (314) are connected with the synchronizing wheel (313), and a tension wheel (314) is arranged between the transmission wheels.

5. The multi-wafer flipping positioning device of claim 3, wherein: the shuttle plate positioning and conveying mechanism (400) comprises a shuttle plate lifting mechanism (410) and a second sliding module (420) for driving the shuttle plate lifting mechanism (410) to slide towards the battery piece overturning mechanism (300), and when the shuttle plate lifting mechanism (410) slides to the bottom of the battery piece overturning mechanism (300), the second vacuum chuck (315) is vacuum-disabled to release the battery pieces.

6. The multi-wafer flipping positioning device of claim 5, wherein: the shuttle plate lifting mechanism (410) comprises a silicon wafer supporting plate (415), a sliding block (411) matched with the second sliding module (420) is arranged at the bottom of the silicon wafer supporting plate (415), and a positioning pin (412) is further arranged on the silicon wafer supporting plate (415).

7. The multi-wafer flipping positioning device of claim 6, wherein: the positioning pin (412) is driven to lift by an air cylinder (413) arranged at the bottom of the shuttle plate lifting mechanism (410), and when the battery piece is placed on the silicon wafer supporting plate (415), the air cylinder (413) retracts and the battery piece enters a positioning groove formed by the positioning pin (412).

8. The multi-wafer flipping positioning device of claim 6, wherein: the silicon wafer support plate (415) is also provided with graphite backing plates (414) for placing battery pieces, and the graphite backing plates (414) are arranged on the silicon wafer support plate (415) in an array mode.

9. The multi-wafer flipping positioning device of claim 8, wherein: the positioning pins (412) are arranged along the circumferential direction of each graphite backing plate (414).

10. The multi-silicon-wafer overturning and positioning device according to any one of claims 1 to 9, characterized in that: the battery piece carrying mechanism (500) comprises a carrier plate conveying track (510) and a carrier plate (520) arranged on the carrier plate conveying track (510), wherein the carrier plate (520) is used for carrying a battery piece group.

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