CN209773761U

CN209773761U - Solar cell laser grooving system and rotary workbench thereof

Info

Publication number: CN209773761U
Application number: CN201920481646.4U
Authority: CN
Inventors: 查俊; 夏楠
Original assignee: Suzhou Maxwell Technologies Co Ltd
Current assignee: Suzhou Maxwell Technologies Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2019-12-13
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a solar wafer laser grooving system and swivel work head thereof belongs to the solar wafer field of making. The utility model discloses a swivel work head includes the base to and set gradually driving motor and revolving stage on the base, be provided with 2 vacuum adsorption boards on this revolving stage at least, the vacuum adsorption board passes through adjusting bolt and installs on the revolving stage, and accessible adjusting bolt adjusts vacuum adsorption board's levelness in the actual production prevents that solar wafer from influencing the grooving effect because of the slope is excessive. The utility model discloses a solar wafer laser grooving system including above-mentioned swivel work head can avoid the levelness of vacuum adsorption board to take place great change and influence the product yield and the production efficiency of solar wafer, is of value to the standardized production of solar wafer.

Description

solar cell laser grooving system and rotary workbench thereof

Technical Field

The utility model relates to a solar wafer makes technical field, and more specifically says, relates to a solar wafer laser grooving system and swivel work head thereof.

Background

The solar cell is a device for directly converting light energy into electric energy through a photoelectric effect or a photochemical effect, is distinguished according to the type of a solar cell, and is a crystalline silicon solar cell which works under the photoelectric effect in the market at present. In the process of producing the solar cell, laser grooving is a crucial one-step process. In the prior art, when laser grooving is performed on the solar cell, offline operation is mostly adopted, the operation mode greatly increases labor cost, equipment cost and site cost, is low in efficiency, and easily causes damage to the solar cell in the processing process, so that the product yield is influenced. At present, some technical solutions have been disclosed to solve the above problems.

as in chinese patent application No.: 2017211825346, filing date: 9, 15 days 2017, the name of invention creation is: the utility model provides a revolving stage mechanism for solar wafer laser grooving, this application discloses a revolving stage mechanism for solar wafer laser grooving, is in including revolving stage, setting the below of revolving stage is used for the drive revolving stage pivoted actuating mechanism, be provided with a plurality of stations, every along its circumference on the revolving stage all be equipped with transport mechanism and the vacuum adsorption device that is used for conveying solar wafer on the station, work as through during transport mechanism material loading or unloading, vacuum adsorption device closes, solar wafer is located transport mechanism is last, works as the revolving stage rotates and is in during the grooving on the solar wafer, vacuum adsorption device opens, solar wafer is located on the vacuum adsorption device.

in actual production, when the scheme is adopted for continuous production, if the levelness of the solar cell piece cannot be ensured to be relatively fixed during groove cutting each time, the laser working according to a preset program cannot accurately cut grooves on the solar cell piece, so that the quality of the solar cell piece is influenced, and the standardized production of the solar cell piece is influenced. In addition, when the solar cell is conveyed to the working station, the solar cell is often bent due to the fact that the solar cell is not at the same level with the working table, and therefore the product yield is affected.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome among the prior art solar wafer laser grooving, solar wafer can't keep better levelness, provides a swivel work head, through adjusting bolt adjustment vacuum adsorption plate's levelness to make solar wafer can not incline or drop at the in-process of carrying with the grooving. The utility model also provides a solar wafer laser grooving system with above-mentioned swivel work head can improve solar wafer's product yield and production efficiency.

2. Technical scheme

in order to achieve the above purpose, the utility model provides a technical scheme does:

The utility model discloses a rotary worktable, which comprises a base, a driving motor and a rotary table, wherein the driving motor and the rotary table are sequentially arranged on the base; the revolving stage is provided with 2 at least vacuum adsorption plates, the vacuum adsorption plates pass through adjusting bolt and install on the revolving stage.

further, the rotating table comprises a plurality of fixing frames extending outwards, and the vacuum adsorption plate is installed on the fixing frames.

Furthermore, the fixing frame is provided with a screw hole matched with the adjusting bolt, and the upper end of the adjusting bolt penetrates through the screw hole in the fixing frame and supports the vacuum adsorption plate.

Further, still include locking bolt, adjusting bolt along the axial seted up with locking bolt complex through-hole, locking bolt's upper end is passed the through-hole and is locked fixed frame and vacuum adsorption plate.

Furthermore, the upper end of the locking bolt is provided with threads, and the lower side surface of the vacuum adsorption plate is provided with a screw hole matched with the locking bolt.

Further, the length of the locking bolt penetrating through the through hole is smaller than the thread length of the screw hole on the lower side surface of the vacuum adsorption plate.

Furthermore, the adjusting bolts are all provided with locking nuts which are located on the lower side of the fixing frame.

Furthermore, the number of the adjusting bolts is 4, and the 4 adjusting bolts are positioned on different sides of the lower side surface of the fixing frame.

The utility model discloses a solar wafer laser grooving system, including foretell swivel work head to and laser instrument and/or arm, the laser instrument is used for carrying out the laser grooving to solar wafer, the arm is used for removing the solar wafer.

3. advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) The utility model discloses a rotary worktable, including the base to and set gradually driving motor and revolving stage on the base, be provided with 2 vacuum adsorption boards on this revolving stage at least, vacuum adsorption board passes through adjusting bolt and installs on the revolving stage. In actual production, through adjusting bolt, make the solar wafer that adsorbs on the vacuum adsorption plate maintain better levelness when the grooving throughout, ensure the grooving effect of the laser instrument according to preset program work to improve product quality and production efficiency.

(2) The utility model discloses a rotary worktable, vacuum adsorption plate installs on the fixed frame of revolving stage, has seted up the screw with adjusting bolt cooperation on this fixed frame, and adjusting bolt's upper end passes the screw on the fixed frame and supports vacuum adsorption plate, when the levelness of vacuum adsorption plate needs to be adjusted, only need screw up or unscrew adjusting bolt, easy operation, convenient to use; the adjusting bolt is further provided with a locking nut, and after the levelness of the vacuum adsorption plate is adjusted, the locking nut can be screwed down to prevent the levelness of the vacuum adsorption plate from changing in the using process.

(3) The utility model discloses a rotary worktable has seted up the through-hole on the adjusting bolt, and the locking bolt passes this through-hole and locks vacuum adsorption board and fixed frame, and during production, when the locking bolt can prevent rotary worktable's rotation rate relatively very fast, the vacuum adsorption board drops from fixed frame, has increased rotary worktable's stability and security.

(4) The utility model discloses a solar wafer laser grooving system, including above-mentioned swivel work head to and laser instrument and/or arm. The levelness of the vacuum adsorption plate can be adjusted through the adjusting bolt in the using or overhauling process, the phenomenon that the levelness of the vacuum adsorption plate is greatly changed to influence the product yield and the production efficiency of the solar cell can be avoided, and the standardized production of the solar cell is facilitated.

Drawings

Fig. 1 is a schematic view of a rotary table of the present invention;

Fig. 2 is a schematic top view of the rotary table of the present invention;

FIG. 3 is a schematic top view of another embodiment of a rotary table;

FIG. 4 is a schematic top view of a rotary table according to yet another embodiment;

FIG. 5 is a schematic front view of the rotary table of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 5;

Fig. 7 is a schematic view of an adjusting bolt of the present invention;

FIG. 8 is a schematic cross-sectional view of an adjusting bolt of the present invention;

FIG. 9 is a schematic cross-sectional view of another embodiment of an adjusting bolt;

FIG. 10 is a schematic cross-sectional view of an adjustment bolt provided in accordance with yet another embodiment;

Fig. 11 is a schematic view of the position of the adjusting bolt of the present invention;

FIG. 12 is a schematic view of another embodiment of an adjusting bolt position.

Fig. 13 is a schematic view of a vacuum adsorption plate of the present invention;

FIG. 14 is a schematic view of a vacuum chuck according to another embodiment;

FIG. 15 is a schematic view of a vacuum chuck according to yet another embodiment;

Fig. 16 is a schematic view of a vacuum absorption plate according to still another embodiment.

The reference numerals in the schematic drawings illustrate: 100. a base; 200. a housing; 300. a rotating table; 310. a fixing frame; 400. a vacuum adsorption plate; 410. adjusting the bolt; 420. locking the nut; 430. locking the bolt; 500. a drive motor; 510. a rotating shaft.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, proportion, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention has no technical essence, and any structural modification, proportion relation change or size adjustment should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.

example 1

Referring to fig. 1 to 16, the rotary table of the present embodiment includes a base 100, and a driving motor 500 and a rotary table 300 sequentially disposed on the base 100, wherein the rotary table 300 is mounted on a rotating shaft 510 of the driving motor 500, and the driving motor 500 is used for driving the rotary table 300 to rotate a certain angle according to a preset program, so that stations on the rotary table 300 are alternately located in a working area of a laser or a cell conveying device. The driving motor 500 may be provided with a cover 200 for preventing dust from entering the driving motor 500. The vacuum adsorption plate 400 is arranged on the rotary table 300, and the vacuum adsorption plate 400 can adsorb the solar cell to prevent the solar cell from falling off when the rotary table 300 rotates and the laser works, and can also stop vacuum adsorption when the conveying device works to facilitate the conveying of the cell. The number of the vacuum adsorption plates 400 arranged on the rotary table 300 is at least 2, and the vacuum adsorption plates can sequentially pass through the feeding area, the laser grooving area and the discharging area through the operation of the rotary table 300, so that the efficiency of solar cell grooving production is improved.

Referring to fig. 4, 2 vacuum suction plates 400 may be provided, 2 vacuum suction plates 400 are symmetrically distributed with respect to the geometric center of the turntable 300, and the 2 vacuum suction plates 400 may be respectively located in the working areas of the laser and the cell transfer device. During operation, the battery piece conveying device conveys the battery piece to the vacuum adsorption plate, then the driving motor 500 drives the rotating platform 300 to rotate 180 degrees, the vacuum adsorption plate 400 adsorbed with the battery piece is conveyed to the laser working area, and meanwhile, the battery piece conveying device conveys the battery piece to the vacuum adsorption plate in the conveying device working area. After the grooving of the battery pieces on the vacuum adsorption plate 400 in the laser working area is completed, the driving motor 500 drives the rotary table 300 to rotate 180 degrees, the battery pieces in the laser working area start to be grooved, meanwhile, the battery piece conveying device conveys the grooved battery pieces in the working area to the next working section, and conveys the non-grooved battery pieces in the raw material area to the vacuum adsorption plate 500. The specific laser grooving principle and method for solar cells, and the structure and working mode of the conveying device are disclosed in the prior art, such as the chinese patent document with application number 2017211825257, and thus are not described in detail in this embodiment.

Referring to fig. 2 and 3, the number of vacuum adsorption plates 400 is preferably 3, and more preferably 4. When the number of the vacuum adsorption plates 400 is 3, the vacuum adsorption plates 400 are different from the rotary workbench with the number of the vacuum adsorption plates 400 being 2 in that the cell conveying process is split into a feeding station and a discharging station, and two conveying devices are adopted to realize simultaneous feeding and discharging, so that the efficiency of laser grooving of solar cells is improved. When the number of the vacuum adsorption plates 400 is 4, it is different from the rotary table in which the number of the vacuum adsorption plates 400 is 3 in that it further includes a waiting station allowing the state of the vacuum adsorption plates to be checked during continuous production, and it is possible to find problems and stop the maintenance earlier. In addition, the feeding station and the discharging station are positioned on the same straight line, so that the occupied area of the equipment is smaller, and the design is more reasonable. When the number of the vacuum adsorption plates 400 exceeds 4, the number of the lasers and the transfer devices may be increased accordingly.

The vacuum suction plate 400 of the present embodiment is mounted on the rotary table 300 by an adjusting bolt 410, and the vacuum suction plate 400 is detachably connected to the rotary table 300. Specifically, a screw hole may be formed in the turntable 300, and one end of the adjusting bolt 410 may pass through the screw hole of the turntable 300 and support the vacuum suction plate 400. Each vacuum suction plate 400 is connected to the rotary table 300 by at least 3 adjusting bolts 410.

As a further optimization of the present embodiment, the rotating platform 300 includes a body and a plurality of fixing frames 310 extending outward, the rotating platform 300 may be circular or regular polygon, and the specific shape of the rotating platform 300 does not affect the beneficial effects of the present embodiment. The fixing frames 310 extending outwards can be fixedly connected with the rotating table 300 body in a welding mode, a riveting mode and the like, and can also be detachably connected with the rotating table 300 body in a threaded connection mode and the like, so that the fixing frames can be conveniently replaced during maintenance. Each of the fixing frames 310 is mounted with 1 vacuum suction plate 400, and the positional relationship between the fixing frames 310 should satisfy the aforementioned positional relationship between the vacuum suction plates 400, that is, be symmetrical with respect to the geometric center of the turntable 300.

More specifically, the fixing frame 310 is provided with a screw hole engaged with the adjusting bolt 410, and the upper end of the adjusting bolt 410 passes through the screw hole of the fixing frame 310 and supports the vacuum absorption plate 400.

As a further optimization of the present embodiment, a locking bolt 430 for locking the vacuum adsorption plate 400 and the fixing frame 310 may be provided. The locking bolt 430 and the vacuum suction plate 400 can be engaged with each other by a thread, and can also be locked with the vacuum suction plate 400 and the fixing frame 310 by other methods such as interference fit. Specifically, when the vacuum suction plate 400 and the fixing frame 310 are engaged, as shown in fig. 7, a through hole may be formed in the axial direction of the adjusting bolt 410, a screw hole may be formed in the vacuum suction plate 400 to be engaged with the locking bolt 430, and the upper end of the locking bolt 430 may pass through the adjusting bolt 410 and may be screwed into the screw hole of the vacuum suction plate 400, thereby locking the vacuum suction plate 400 and the fixing frame 310. To achieve the above purpose, referring to fig. 8, the through hole may include two sections, one section closer to the head of the adjusting bolt 410 should have an inner diameter larger than the outer diameter of the head of the locking bolt 430, and the other section should have an inner diameter between the outer diameter of the head of the locking bolt 430 and the outer diameter of the screw rod; referring to fig. 10, a depth of a section of the through hole closer to the head of the adjusting bolt 410 may exceed a height of the head of the adjusting bolt 410 and be close to an upper end of the adjusting bolt 410; referring to fig. 9, the through hole may be a hole having a constant diameter between the outer diameter of the head of the locking bolt 430 and the outer diameter of the screw. More specifically, the through hole may be provided with a thread to be engaged with the locking bolt 430. It should be noted that, no matter what kind of locking bolt 430 and the matching relationship between the locking bolt 430 and the adjusting bolt 410 are adopted, the purpose is to better lock the vacuum suction plate 400 and the fixing frame 310, so as to prevent the vacuum suction plate 400 from falling off from the rotating table during the production process, and therefore, the specific structure of the locking bolt 430 and the matching manner between the locking bolt 430 and the adjusting bolt 410 do not affect the beneficial effects of the present embodiment.

Further, when the length of the locking bolt 430 passing through the through hole is greater than or equal to the thread length of the screw hole on the lower side of the vacuum suction plate 400, a section of the locking bolt 430 passing through the through hole cannot be completely screwed into the screw hole on the lower side of the vacuum suction plate 400, and the top end of the adjusting bolt 410 cannot contact with the lower side of the vacuum suction plate 400, in this case, the adjusting bolt 410 loses the supporting function for the vacuum suction plate 400, and the locking bolt 430 cannot lock the vacuum suction plate 400 and the fixing frame 310, so that the length of the locking bolt 430 passing through the through hole should be less than the thread length of the screw hole on the lower side of the vacuum suction.

further, the adjusting bolts 410 are each provided with a lock nut 420. In actual production, after the levelness of the vacuum adsorption plate 400 is adjusted, the locking nut 420 can be screwed to achieve the fixing effect. The lock nut 420 can prevent the levelness of the vacuum adsorption plate 400 from being largely changed. More specifically, the locking nut 420 is provided at a lower side of the fixing frame to facilitate screwing.

as a further optimization of the present embodiment, each vacuum suction plate 400 is connected to the fixing frame 310 by 4 adjusting bolts 410. Referring to fig. 11 to 12, the 4 adjusting bolts 410 are located at different sides of the lower side of the fixing frame 310, and such a location structure enables the 4 adjusting bolts 410 to generate uniform supporting force for the vacuum suction plate 400, so that the vacuum suction plate 400 is not easily detached from the fixing frame 310.

As a further optimization of the present embodiment, the vacuum absorption plate 400 has a hollow structure. Specifically, referring to fig. 13 to 16, at least two holes are formed in the vacuum suction plate 400, the holes may be square, circular, or other regular patterns, a space exists between each hole on the vacuum suction plate 400, and the holes may be symmetrical with respect to the geometric center of the vacuum suction plate 400, the vacuum suction plate 400 is in a shape of a Chinese character ' tian ', a japanese character ' shape, or other regular patterns, that is, the vacuum suction plate 400 may be divided into a frame and a central portion, and the central portion is connected to at least the inner side wall of the side edge of the frame 2. The frame, the central part and the connecting part of the vacuum adsorption plate 400 are communicated with each other, and the upper side surface is provided with a plurality of small holes. The vacuum adsorption plate 400 with the structure can provide enough adsorption force, and the adsorption force provided by the central part can make the battery pieces more uniform, so that the battery pieces are prevented from being broken on the vacuum adsorption plate 400. In addition, the vacuum adsorption plate 400 of this structure has relatively light weight and requires less adjustment of the bolts 410.

Example 2

The laser grooving system for the solar cell comprises the rotary workbench, a laser and/or a mechanical arm, wherein the laser is used for performing laser grooving on the solar cell, and the mechanical arm is used for conveying the solar cell. Furthermore, a vacuum adsorption disc is arranged on the mechanical arm and used for adsorbing the solar cell. It should be noted that, in order to realize the normal operation of the solar cell laser grooving system, the specific structures and the using methods of all devices, such as the laser, the mechanical arm driving device, the vacuum device, and the like, except the above-mentioned rotary table, can be implemented according to the contents disclosed in the prior art or the manner suggested by the manufacturer, and thus, the present embodiment is not described again.

Specifically, the dynamic process of the laser grooving system of the present embodiment is as follows:

Before the laser grooving system is operated, the levelness of each vacuum adsorption plate 400 is carefully checked, and the levelness of the vacuum adsorption plate 400 is made to meet the requirement by adjusting the adjusting bolt 410. Starting a laser grooving system, conveying the solar cell to a vacuum adsorption plate 400 on the feeding area on the rotating table 300 by a mechanical arm in the feeding area, and tightly sucking the solar cell by the vacuum adsorption plate 400; then, the driving motor 500 drives the rotating table 300 to rotate by a certain angle according to a preset program, and the vacuum adsorption plate 400 adsorbed with the battery piece is sent into the laser etching groove area; then, the laser starts to groove the solar cell, meanwhile, the mechanical arm in the feeding area conveys the solar cell to the vacuum adsorption plate 400 on the rotating table 300 and located in the feeding area, and the vacuum adsorption plate 400 tightly adsorbs the solar cell; after the grooving is completed, the driving motor 500 drives the rotating table 300 to rotate by a certain angle according to a preset program, the vacuum adsorption plate 400 adsorbing the grooved solar cells is sent into the blanking area, the mechanical arm of the blanking area carries the solar cells to the next working section, meanwhile, the mechanical arm of the feeding area completes the feeding process, and the laser of the laser grooving area completes the grooving process. The laser grooving system continuously performs the circulation to realize continuous production.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A rotary table comprising a base (100), and a driving motor (500) and a rotary table (300) sequentially provided on the base (100), the rotary table (300) being installed on a rotation shaft (510) of the driving motor (500), characterized in that: the rotary table (300) is provided with at least 2 vacuum adsorption plates (400), and the vacuum adsorption plates (400) are installed on the rotary table (300) through adjusting bolts (410).

2. A rotary table according to claim 1, wherein: the rotary table (300) comprises a plurality of fixing frames (310) extending outwards, and the vacuum adsorption plate (400) is installed on the fixing frames (310).

3. A rotary table according to claim 2, wherein: the fixing frame (310) is provided with a screw hole matched with the adjusting bolt (410), and the upper end of the adjusting bolt (410) penetrates through the screw hole in the fixing frame (310) and supports the vacuum adsorption plate (400).

4. a rotary table according to claim 3, wherein: still include locking bolt (430), adjusting bolt (410) along the axial seted up with locking bolt (430) complex through-hole, the upper end of locking bolt (430) is passed the through-hole and is locked fixed frame (310) and vacuum adsorption plate (400).

5. A rotary table according to claim 4, wherein: the upper end of the locking bolt (430) is provided with threads, and the lower side surface of the vacuum adsorption plate (400) is provided with a screw hole matched with the locking bolt (430).

6. A rotary table according to claim 5, wherein: the length of the locking bolt (430) penetrating through the through hole is smaller than the thread length of a screw hole on the lower side surface of the vacuum adsorption plate (400).

7. A rotary table according to claim 6, wherein: adjusting bolt (410) on all be provided with lock nut (420), lock nut (420) are located fixed frame (310) downside.

8. A rotary table according to claim 7, wherein: the number of the adjusting bolts (410) is 4, and the 4 adjusting bolts (410) are positioned on different sides of the lower side surface of the fixing frame (310).

9. A rotary table according to any one of claims 1 to 8, wherein: the vacuum adsorption plate (400) is of a hollow structure.

10. the utility model provides a solar wafer laser grooving system which characterized in that: the rotary workbench according to any one of claims 1 to 9, and a laser and/or a mechanical arm, wherein the laser is used for carrying out laser grooving on the solar cell, and the mechanical arm is used for carrying the solar cell.