Moving gantry assembly of photovoltaic cell laser scribing production line

Abstract

The utility model discloses a moving gantry assembly of a photovoltaic cell laser scribing production line, which comprises a base comprising a bearing surface; the pair of first supporting plates are arranged on the bearing surface in parallel at an interval; the pair of second supporting plates are erected on the pair of first supporting plates in parallel at intervals, and the pair of first supporting plates and the pair of second supporting plates are matched to define an operation space used for installing a machining platform; the transverse frame extends in the X-axis direction and is erected and mounted on the pair of second supporting plates; the mounting seat is mounted on the transverse frame; the Y-axis scribing unit is used for driving the transverse frame to move in the Y-axis direction; the X-axis scribing unit is used for driving the mounting base to move in the X-axis direction; and the sample shifting guide rail extends along the X-axis direction and is arranged on one surface, facing the working space, of the first supporting plate. According to the laser scribing device, the displacement mechanism of the battery and the driving mechanism of the laser head module are integrally designed, so that the relative position precision of the battery and the laser head module can be improved, and the laser scribing precision can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cell production, and in particular to a motion gantry assembly for a photovoltaic cell laser scribing production line. Background Art

[0002] Laser scribing of perovskite cells is one of the key steps in the manufacturing process of perovskite solar cells, and is mainly used to construct the series circuit of the cell. Laser scribing usually involves fine scribing on different layers of the perovskite cell through laser etching technology. These layers may include FTO conductive glass (P1), perovskite layer (P2), and gold or silver plated materials (P3). The purpose of scribing is to divide the cell area, thereby connecting multiple battery cells in series to increase the voltage. High-precision laser scribing is crucial for the mass production of large-format perovskite cells, especially when forming a sub-cell series structure, different film layers need to be accurately etched at different positions, which requires that the laser process, system stability and accuracy must meet extremely high standards.

[0003] The laser scribing process of perovskite cells requires the displacement of perovskite cells at different stations such as loading station, alignment station, scribing station, unloading station, etc. It is very important to ensure the position accuracy of the cells and the laser head module during the displacement and scribing process. At present, the conventional method is to shift the photovoltaic cells to the processing platform through a conveyor belt, and perform laser scribing by controlling the movement of the laser head module above the processing platform. The laser head module drive mechanism and the photovoltaic cell displacement mechanism are non-integrated designs, and it is difficult to ensure the relative position accuracy of the battery and the laser head module, resulting in the subsequent laser scribing accuracy being affected, which is not conducive to the precise etching of perovskite cells. Utility Model Content

[0004] The purpose of the present application is to provide a motion gantry assembly for a photovoltaic cell laser scribing production line, so as to solve the problem that the laser head module driving mechanism and the photovoltaic cell shifting mechanism in the prior art perovskite cell laser scribing production line are of non-integrated design, making it difficult to ensure the relative position accuracy of the cell and the laser head module, resulting in the accuracy of subsequent laser scribing being affected, which is not conducive to the precise etching of the perovskite cell.

[0005] To achieve the above-mentioned purpose, the present application provides a motion gantry assembly for a photovoltaic cell laser scribing production line, comprising a base, a pair of first support plates, a pair of second support plates, a cross frame, a mounting seat, a Y-axis scribing unit, an X-axis scribing unit, and a sample shift guide rail;

[0006] The base includes a bearing surface; a pair of first support plates are arranged on the bearing surface in parallel and at intervals, and the first support plates are extended along the X-axis direction; a pair of second support plates are arranged on the pair of first support plates in parallel and at intervals, and the second support plates are extended along the Y-axis direction, and the pair of first support plates and the pair of second support plates are arranged to form a working space for installing the processing platform; a cross frame is extended along the X-axis direction and is installed on the pair of second support plates; a mounting seat is installed on the cross frame, and the mounting seat is used to install a laser head module; a Y-axis scribing unit is used to drive the cross frame to move along the Y-axis direction; and an X-axis scribing unit is used to drive the mounting seat to move along the X-axis direction. The sample shift guide is extended along the X-axis direction and arranged on the first support plate facing the working space.

[0007] In one or more embodiments, the Y-axis scribing unit includes a pair of Y-axis scribing guide rails, a Y-axis driving mechanism;

[0008] A pair of Y-axis scribing guide rails are extended along the Y-axis direction and are respectively arranged on the pair of second support plates; a Y-axis driving mechanism is arranged on the second support plate;

[0009] Wherein, the two ends of the horizontal frame are slidably mounted on the Y-axis marking guide rails at the corresponding ends, and the Y-axis driving mechanism is used to drive the horizontal frame to slide along the Y-axis marking guide rails;

[0010] A limit pin is detachably arranged on the second support plate, the limit pin is located at one end of the second support plate, and the limit pin is interfered with the cross frame to limit the cross frame at the end of the second support plate when not in operation.

[0011] In one or more embodiments, the cross-section of the second support plate is L-shaped, so that a slot is formed on the second support plate above one side close to the working space, the Y-axis marking guide rail is arranged on the bottom surface of the slot, and the Y-axis drive mechanism is arranged on the side surface of the slot.

[0012] In one or more embodiments, the Y-axis driving mechanism includes a Y-axis linear motor extending along the Y-axis, a Y-axis mover of the Y-axis linear motor is connected to the cross frame, and a water cooling channel is provided inside the Y-axis mover.

[0013] In one or more embodiments, the cross frame includes a support arranged at an end portion, the support is slidably mounted on the Y-axis scribing guide rail, and the support is connected to the moving end of the Y-axis driving mechanism.

[0014] In one or more embodiments, the X-axis scribing unit includes an X-axis scribing guide rail and an X-axis driving mechanism;

[0015] The X-axis scribing guide rail is extended along the X-axis direction and arranged on the horizontal frame; the X-axis driving mechanism is arranged on the horizontal frame;

[0016] Wherein, the mounting seat can be slidably mounted on the X-axis marking guide rail, and the X-axis driving mechanism is used to drive the mounting seat to slide along the X-axis marking guide rail.

[0017] In one or more embodiments, the horizontal frame includes a first side surface and a second side surface that are arranged opposite to each other, the X-axis scribing guide rail and the X-axis driving mechanism are installed on the first side surface, and the mounting seat includes a mounting plate, an L-shaped bracket:

[0018] The mounting plate can be slidably mounted on the X-axis marking guide rail, and the mounting plate is connected to the moving end of the X-axis driving mechanism; one end of the L-shaped bracket is connected to the mounting plate, and the other end extends to the top surface of the cross frame close to one end of the second side surface, and the L-shaped bracket is arranged with a mounting end for installing a laser head module close to one end of the second side surface.

[0019] In one or more embodiments, the X-axis driving mechanism includes an X-axis linear motor extending along the X-axis, an X-axis mover of the X-axis linear motor is connected to the mounting seat, and a water cooling channel is provided inside the X-axis mover.

[0020] In one or more embodiments, the base, the first support plate and the second support plate are natural marble plates.

[0021] In one or more embodiments, the motion gantry assembly further includes a lower frame, a plurality of vibration isolation pads, and a plurality of anti-vibration foot cups:

[0022] The lower frame is arranged on the bottom surface of the base; a plurality of vibration isolation pads are arranged between the lower frame and the base to support the base; and a plurality of shockproof foot cups are arranged on the bottom surface of the lower frame to support the lower frame.

[0023] Different from the prior art, the beneficial effects of this application are:

[0024] The motion gantry assembly of the present application integrates a first support plate and a second support plate, a sample shifting guide rail is arranged on the first support plate, a pair of second support plates are mounted with a cross frame, the cross frame is driven to move along the Y-axis by a Y-axis marking unit, a mounting seat for mounting a laser head module is arranged on the cross frame, and the mounting seat is driven to move along the X-axis by an X-axis marking unit, thereby integrating the shifting mechanism of the battery and the driving mechanism of the laser head module, which helps to improve the relative position accuracy of the battery and the laser head module, and helps to improve the accuracy of laser marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a structural schematic diagram of an implementation scheme of a moving gantry assembly of a photovoltaic cell laser scribing production line of the present application;

[0027] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of a moving gantry assembly of a photovoltaic cell laser scribing production line of the present application;

[0028] Figure 3 yes Figure 1 A is a partial enlarged schematic diagram;

[0029] Figure 4 yes Figure 2 Schematic diagram of the structure after removing the mounting plate;

[0030] Figure 5 yes Figure 4 A partial enlarged schematic diagram of B in the figure.

[0031] As shown in the figure:

[0032] Base 100; bearing surface 101;

[0033] A first support plate 200;

[0034] Second support plate 300; notch 301; limiting pin 302;

[0035] Working space 400;

[0036] Sample shift guide 500;

[0037] Horizontal frame 600; first side surface 601; second side surface 602; support 603;

[0038] Mounting seat 700; mounting plate 701; L-shaped bracket 702; mounting end 703;

[0039] Y-axis marking unit 800; Y-axis marking guide rail 801; Y-axis driving mechanism 802; Y-axis mover 8021;

[0040] X-axis scribing unit 900; X-axis scribing guide rail 901; X-axis driving mechanism 902; X-axis mover 9021;

[0041] Lower rack 1000;

[0042] Vibration isolation pad 1100;

[0043] Shockproof foot cup 1200. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should fall within the scope of protection of this application.

[0045] At present, in the perovskite cell laser scribing production line, the laser head module driving mechanism and the photovoltaic cell shifting mechanism are non-integrated designs, which makes it difficult to ensure the relative position accuracy of the cell and the laser head module. As a result, the accuracy of subsequent laser scribing is affected, which is not conducive to the precise etching of perovskite cells.

[0046] In order to solve the above problems, the applicant has developed a motion gantry assembly that can be applied to photovoltaic cell laser scribing production lines. The motion gantry assembly integrates the battery displacement mechanism and the laser head module drive mechanism, which helps to improve the relative position accuracy of the battery and the laser head module, and helps to improve the accuracy of laser scribing.

[0047] Specifically, see Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of an embodiment of a moving gantry assembly of a photovoltaic cell laser scribing production line of the present application. Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the motion gantry assembly of the photovoltaic cell laser scribing production line of the present application.

[0048] like Figure 1 and Figure 2 As shown, the motion gantry assembly includes a base 100 , and a bearing surface 101 is provided on the top surface of the base 100 .

[0049] A pair of first support plates 200 are disposed on the bearing surface 101 and are spaced apart from each other in parallel. The first support plates 200 are extended along the X-axis direction.

[0050] A pair of second support plates 300 are mounted on the pair of first support plates 200 and arranged in parallel and spaced apart. The second support plates 300 extend along the Y-axis direction. The pair of first support plates 200 and the pair of second support plates 300 cooperate to form a working space 400 for installing a processing platform.

[0051] A sample displacement guide rail 500 extending along the X-axis is installed on the side of the first support plate 200 facing the working space 400. The sample displacement guide rail 500 is used to install a slidable sample clamp, so that the sample can be transferred to the working platform located in the working space 400 by driving the sample clamp holding the sample to move.

[0052] A horizontal frame 600 extending along the X-axis direction is mounted on the pair of second support plates 300 , and a mounting seat 700 is mounted on the horizontal frame 600 . The mounting seat 700 is used to mount the laser head module.

[0053] Specifically, a Y-axis scribing unit 800 is disposed on the second support plate 300, and the Y-axis scribing unit 800 is used to drive the horizontal frame 600 to move along the Y-axis direction. An X-axis scribing unit 900 is disposed on the horizontal frame 600, and the X-axis scribing unit 900 is used to drive the mounting seat 700 to move along the X-axis direction.

[0054] It can be understood that by driving the horizontal frame 600 to move along the Y axis, the laser head module can be driven to move along the Y axis in the working space 400; by driving the mounting seat 700 to move along the X axis, the laser head module can be driven to move along the X axis in the working space 400. Through the cooperation of the two, the laser head module can perform laser scribing at any position on the XY plane of the battery.

[0055] Based on the above structure, an integrated design of sample transfer and laser scribing can be achieved, which helps to improve the scribing accuracy.

[0056] In order to further improve the positioning accuracy, in this embodiment, the base 100, the first support plate 200 and the second support plate 300 can be natural marble slabs. The natural marble material has undergone a long period of natural aging and will not have strong internal stress released over time, which can ensure the accuracy of the bearing surface 101 and each guide rail.

[0057] Furthermore, a lower frame 1000 may be arranged on the bottom surface of the base 100, and a plurality of vibration isolation pads 1100 may be arranged between the lower frame 1000 and the base 100. The lower frame 1000 may be supported by a plurality of shockproof foot cups 1200 arranged on the bottom surface, thereby further ensuring the accuracy of the bearing surface 101 and each guide rail.

[0058] The structure of the Y-axis scribing unit 800 of the present application is described in detail below. Figure 1 and Figure 3 , Figure 3 yes Figure 1 A is a partial enlarged schematic diagram of the middle part.

[0059] like Figure 1 and Figure 3As shown, the Y-axis scribing unit 800 includes a pair of Y-axis scribing guide rails 801 and a Y-axis driving mechanism 802 . The pair of Y-axis scribing guide rails 801 are extended along the Y-axis direction and are respectively arranged on a pair of second support plates 300 . The Y-axis driving mechanism 802 is arranged on the second support plate 300 .

[0060] Both ends of the horizontal frame 600 are slidably mounted on the Y-axis marking guide rails 801 at the corresponding ends, and the Y-axis driving mechanism 802 is used to drive the horizontal frame 600 to slide along the Y-axis marking guide rails 801 .

[0061] Specifically, in order to optimize the layout, in this embodiment, the cross section of the second support plate 300 may be L-shaped, so that a notch 301 located above a side close to the working space 400 is formed on the second support plate 300 .

[0062] The Y-axis scribing guide rail 801 may be arranged on the bottom surface of the slot 301 , and the Y-axis driving mechanism 802 may be arranged on the side surface of the slot 301 .

[0063] The Y-axis driving mechanism 802 may be a Y-axis linear motor extending along the Y-axis, and a Y-axis mover 8021 of the Y-axis linear motor is connected to the horizontal frame 600. In order to improve the heat dissipation performance of the linear motor, a water cooling channel (not shown in the figure) may be arranged inside the Y-axis mover 8021, and the water cooling channel may be connected to an external water circulation system through a water cooling inlet and outlet 8022 arranged on the side of the mover 8021.

[0064] The horizontal frame 600 includes a support 603 arranged at the end. The support 603 is slidably mounted on the Y-axis marking guide rail 801, and the support 603 is connected to the moving end of the Y-axis driving mechanism 802.

[0065] Based on the above structure, the movement stability of the horizontal frame 600 in the Y-axis direction can be further guaranteed.

[0066] In addition, during the debugging stage, manual debugging work is required in the working space 400. A detachable limit pin 302 is also arranged on the second support plate 300. The limit pin 302 can limit the support 603 of the cross frame 600 at the end to avoid accidental touch during the debugging stage, causing the cross frame 600 to move above the working space 400, thereby avoiding safety hazards. The limit pin 302 can be removed during the marking operation.

[0067] See also Figure 2 , Figure 4 and Figure 5 , Figure 4 yes Figure 2 Schematic diagram of the structure after removing the mounting plate. Figure 5 yes Figure 4 A partial enlarged schematic diagram of B in the figure.

[0068] like Figure 2 , Figure 4 and Figure 5 As shown, the X-axis scribing unit 900 includes an X-axis scribing guide rail 901 and an X-axis driving mechanism 902 , wherein the X-axis scribing guide rail 901 is extended along the X-axis direction and arranged on the horizontal frame 600 ; the X-axis driving mechanism 902 is arranged on the horizontal frame 600 .

[0069] The mounting seat 700 is slidably mounted on the X-axis marking guide rail 901 , and the X-axis driving mechanism 902 is used to drive the mounting seat 700 to slide along the X-axis marking guide rail 901 .

[0070] Specifically, the horizontal frame 600 includes a first side surface 601 and a second side surface 602 that are arranged opposite to each other, and the X-axis scribing guide rail 901 and the X-axis driving mechanism 902 are installed on the first side surface 601 .

[0071] The mounting base 700 includes a mounting plate 701 and an L-shaped bracket 702 . The mounting plate 701 is slidably mounted on the X-axis marking guide rail 901 , and the mounting plate 701 is connected to the moving end of the X-axis driving mechanism 902 .

[0072] One end of the L-shaped bracket 702 is connected to the mounting plate 701 , and the other end extends to the top surface of the horizontal frame 600 close to the second side surface 602 . The end of the L-shaped bracket 702 close to the second side surface 602 is provided with a mounting end 703 for mounting the laser head module.

[0073] Among them, the X-axis driving mechanism 902 may include an X-axis linear motor extending along the X-axis, and the X-axis mover 9021 of the X-axis linear motor is connected to the mounting seat 700. Further, similar to the Y-axis mover 8021, a water cooling channel (not shown in the figure) may be arranged inside the X-axis mover 9021, and the water cooling channel may be connected to the external water circulation system through a water cooling inlet and outlet (not shown in the figure) arranged on the side, thereby improving the heat dissipation performance of the X-axis linear motor.

[0074] It can be understood that after the laser head module is installed on the mounting end of the L-shaped bracket 702, it can be located above the working space 400. When the X-axis linear motor drives the mounting plate 701 to move along the X-axis, it can drive the L-shaped bracket 702 to move along the X-axis, thereby driving the laser head module to move along the X-axis direction.

[0075] The X-axis scribing unit 900 based on the above structure can effectively improve the movement stability of the mounting seat 700 and the laser head module along the X-axis direction.

[0076] It should be noted that in the above embodiments, the X-axis drive mechanism 902 and the Y-axis drive mechanism 802 are both linear motors. In other embodiments, other commonly used devices can also be used to achieve the sliding drive of the cross frame 600 and the mounting seat 700, which can also achieve the effect of this embodiment.

[0077] The working process of the motion gantry assembly of the above-mentioned embodiments can be as follows:

[0078] 1. The sample clamping jaw is driven to move along the X-axis by the sample shifting guide rail 500 until the sample reaches the working platform located in the working space 400;

[0079] 2. Through the cooperation of X-axis linear motor and Y-axis linear motor, the position of laser head module is adjusted on XY plane to realize laser marking at any position on the sample;

[0080] 3. After the marking is completed, the sample clamping jaws are driven to move along the X-axis through the sample shifting guide rail 500 to transfer the sample out of the working space 400.

[0081] Based on the motion gantry assembly of the above-mentioned embodiments, the shifting mechanism of the battery and the driving mechanism of the laser head module are integrated into a design, which helps to improve the relative position accuracy of the battery and the laser head module and helps to improve the accuracy of laser marking.

[0082] For those skilled in the art, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0083] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustration and illustration. These descriptions are not intended to limit the present application to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present application and its practical application, so that those skilled in the art can realize and utilize the various exemplary embodiments of the present application and various selections and changes. The scope of the present application is intended to be limited by the claims and their equivalents.

Claims

1. A motion gantry assembly for a photovoltaic cell laser scribing production line, characterized in that: include: a base, including a bearing surface; A pair of first support plates are arranged in parallel and spaced apart on the bearing surface, wherein the first support plates are extended along the X-axis direction; A pair of second support plates are arranged parallel and spaced on the pair of first support plates, the second support plates are extended along the Y-axis direction, and the pair of first support plates and the pair of second support plates are cooperated to form a working space for installing the processing platform; A horizontal frame extending along the X-axis direction and mounted on the pair of second support plates; A mounting seat, mounted on the horizontal frame, and used to mount a laser head module; A Y-axis scribing unit, used for driving the horizontal frame to move along the Y-axis direction; An X-axis scribing unit, used for driving the mounting seat to move along the X-axis direction; The sample displacement guide rail is extended along the X-axis direction and arranged on a side of the first support plate facing the working space.

2. The motion gantry assembly according to claim 1, characterized in that: The Y-axis scribing unit comprises: A pair of Y-axis scribing guide rails extending along the Y-axis direction and arranged on the pair of second support plates respectively; A Y-axis driving mechanism, arranged on the second supporting plate; Wherein, the two ends of the horizontal frame are slidably mounted on the Y-axis marking guide rails at the corresponding ends, and the Y-axis driving mechanism is used to drive the horizontal frame to slide along the Y-axis marking guide rails; A limit pin is detachably arranged on the second support plate, the limit pin is located at one end of the second support plate, and the limit pin is interfered with the cross frame to limit the cross frame at the end of the second support plate when not in operation.

3. The motion gantry assembly according to claim 2, characterized in that: The cross section of the second support plate is L-shaped, so that a slot is formed on the second support plate and is located above one side close to the working space, the Y-axis marking guide rail is arranged on the bottom surface of the slot, and the Y-axis driving mechanism is arranged on the side surface of the slot.

4. The motion gantry assembly according to claim 2, characterized in that: The Y-axis driving mechanism comprises a Y-axis linear motor extending along the Y-axis, a Y-axis mover of the Y-axis linear motor is connected to the cross frame, and a water cooling channel is arranged inside the Y-axis mover.

5. The motion gantry assembly according to claim 3, characterized in that: The cross frame includes a support arranged at an end portion, the support is slidably mounted on the Y-axis marking guide rail, and the support is connected to the moving end of the Y-axis driving mechanism.

6. The motion gantry assembly according to claim 1, characterized in that: The X-axis scribing unit comprises: An X-axis scribing guide rail is extended along the X-axis direction and arranged on the horizontal frame; An X-axis driving mechanism is arranged on the horizontal frame; Wherein, the mounting seat can be slidably mounted on the X-axis marking guide rail, and the X-axis driving mechanism is used to drive the mounting seat to slide along the X-axis marking guide rail.

7. The motion gantry assembly according to claim 6, characterized in that: The horizontal frame includes a first side surface and a second side surface that are arranged opposite to each other, the X-axis scribing guide rail and the X-axis driving mechanism are installed on the first side surface, and the mounting seat includes: A mounting plate is slidably mounted on the X-axis scribing guide rail, and the mounting plate is connected to the moving end of the X-axis driving mechanism; An L-shaped bracket has one end connected to the mounting plate and the other end extending to the top surface of the cross frame close to one end of the second side surface. The L-shaped bracket is provided with a mounting end for mounting a laser head module close to one end of the second side surface.

8. The motion gantry assembly according to claim 6, characterized in that: The X-axis driving mechanism comprises an X-axis linear motor extending along the X-axis, an X-axis mover of the X-axis linear motor is connected to the mounting seat, and a water cooling channel is arranged inside the X-axis mover.

9. The motion gantry assembly according to claim 1, characterized in that: The base, the first support plate and the second support plate are natural marble plates.

10. The motion gantry assembly according to claim 1, characterized in that: Also includes: A lower frame is arranged on the bottom surface of the base; A plurality of vibration isolation pads are arranged between the lower frame and the base to support the base; A plurality of shockproof foot cups are arranged on the bottom surface of the lower frame to support the lower frame.

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