A grinding wheel device for processing a photovoltaic device

Abstract

The utility model discloses a grinding wheel device for photovoltaic equipment processing, including lower frame and the upper machine box of lower frame top fixed, and the top of upper machine box is fixed with transmission shell, one end fixed with the backboard in the lower frame, and the one side rotation of backboard top is installed with auxiliary shaft, the top of auxiliary shaft is installed with lower grinding wheel, the outer wall of upper machine box one side is slidably installed with axle box, and the inside rotation of axle box is installed with outer spline shaft, the bottom of outer spline shaft is fixed with the upper grinding wheel of lower grinding wheel concentric. The utility model discloses two -way double grinding wheel structure form can fully utilize the running time of equipment, has reduced the processing cycle, thereby promotes the time utilization of production line, and according to the thickness of the workpiece to be polished and adjusts the distance, can ensure the distance between lower grinding wheel, upper grinding wheel and workpiece surface is proper, makes the both sides of workpiece can be ground and polished fully simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel technology, specifically to a grinding wheel device for processing photovoltaic equipment. Background Technology

[0002] The processing of photovoltaic equipment typically involves the precision cutting, grinding, and polishing of silicon wafers to ensure their surface smoothness and precision meet requirements, thereby improving the conversion efficiency and performance stability of photovoltaic cells. Grinding wheels, as a common processing tool, play a crucial role in this process. During processing, the surface of the grinding wheel contacts the workpiece surface, applying pressure and movement to remove surface unevenness and roughness, achieving the desired surface smoothness and precision. Grinding wheel devices control parameters such as the wheel's rotation speed, pressure, and trajectory via a motor. However, current grinding wheel devices are mainly single-wheel structures, which can only process one side of the workpiece simultaneously, failing to achieve synchronous double-sided grinding. Therefore, the workpiece needs to be processed multiple times to complete double-sided grinding, making it difficult to fully utilize the grinding wheel device's operating time, thus limiting production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a grinding wheel device for processing photovoltaic equipment, which realizes the synchronous rotation of the upper and lower grinding wheels, and the distance between the upper and lower grinding wheels can be adjusted according to the thickness of the workpiece to be polished, thereby realizing the function of double-sided polishing and grinding, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a grinding wheel device for processing photovoltaic equipment, comprising a lower frame and an upper housing fixed to the top of the lower frame, wherein a transmission housing is fixed to the top of the upper housing, a support plate is fixed to one end inside the lower frame, and a secondary shaft is rotatably mounted on one side of the top of the support plate, a lower grinding wheel is mounted on the top of the secondary shaft, a shaft box is slidably mounted on the outer wall of one side of the upper housing, and an external spline shaft is rotatably mounted inside the shaft box, an upper grinding wheel concentric with the lower grinding wheel is fixed to the bottom end of the external spline shaft, a lifting unit for controlling the height of the shaft box is mounted on the outer wall of one side of the upper housing, an internal spline shaft is rotatably mounted on one side of the top of the transmission housing, the internal spline shaft and the external spline shaft are interlocked, a pulley drive unit for driving the internal spline shaft and the secondary shaft to rotate synchronously is mounted on the top of the transmission housing, and a PLC control panel electrically connected to the input end of the pulley drive unit and the lifting unit is mounted on one side of the surface of the upper housing.

[0005] Preferably, the pulley drive unit includes a stepper motor mounted on one side of the top of the transmission housing, and a main shaft mounted on the output end of the stepper motor. The two ends of the main shaft surface are respectively equipped with a pulley drive structure one and a pulley drive structure two for driving the rotation of the inner spline shaft and the secondary shaft.

[0006] Preferably, the pulley drive structure includes a drive wheel mounted on one end of the main shaft surface and a driven wheel mounted on one end of the inner spline shaft surface, with a track wound between the driven wheel and the drive wheel.

[0007] Preferably, a protective cover is installed at the top of the lower frame on one side of the upper chassis, and the top of the sub-shaft extends through the outside of the protective cover.

[0008] Preferably, a support ring is fixed to one end of the surface of the external spline shaft, and an annular groove that fits into the support ring is provided at one end inside the shaft box.

[0009] Preferably, the lifting unit is a right-angled seat installed on the outer wall of one side of the upper housing, and a dual-axis cylinder installed on the top of the right-angled seat, with the top of the piston rod of the dual-axis cylinder fixedly connected to the bottom of the axle box.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This grinding wheel device for photovoltaic equipment processing, through the structure of a belt drive unit and an internal spline shaft working together, can make full use of the equipment's running time and reduce the processing cycle compared with the single grinding wheel structure, thereby improving the time utilization rate of the production line. Moreover, by adjusting the distance according to the thickness of the workpiece to be polished, it can ensure that the distance between the lower grinding wheel, the upper grinding wheel and the workpiece surface is appropriate, so that both sides of the workpiece can be fully ground and polished at the same time, resulting in more uniform surface smoothness and precision, and reducing processing errors and unevenness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure One ;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure Two ;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure Three .

[0015] In the diagram: 1. Lower frame; 101. Support plate; 2. Upper chassis; 3. Transmission housing; 4. Belt drive unit; 401. Stepper motor; 402. Belt drive structure one; 5. PLC control panel; 6. Main spindle; 7. Internal splined shaft; 8. Counterspindle; 9. Belt drive structure two; 10. Lower grinding wheel; 11. Shaft box; 12. External splined shaft; 1201. Support ring; 13. Upper grinding wheel; 14. Dual-axis cylinder. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figures 1-4 An embodiment of this utility model provides a grinding wheel device for processing photovoltaic equipment, including a lower frame 1 and an upper housing 2 fixed to the top of the lower frame 1. A transmission housing 3 is fixed to the top of the upper housing 2. A support plate 101 is fixed to one end inside the lower frame 1. A secondary shaft 8 is rotatably installed on one side of the top of the support plate 101. A lower grinding wheel 10 is installed at the top of the secondary shaft 8. A shaft box 11 is slidably installed on the outer wall of one side of the upper housing 2. An external spline shaft 12 is rotatably installed inside the shaft box 11. An upper grinding wheel 13 concentric with the lower grinding wheel 10 is fixed to the bottom end of the external spline shaft 12. A lifting unit for controlling the height of the shaft box 11 is installed on the outer wall of one side of the upper housing 2. The lifting unit is a right-angle seat installed on the outer wall of one side of the upper housing 2 and a double-axis cylinder 14 installed at the top of the right-angle seat. The top of the piston rod of the double-axis cylinder 14 is fixedly connected to the bottom end of the shaft box 11.

[0018] When controlling the distance between the upper grinding wheel 13 and the lower grinding wheel 10, the dual-axis cylinder 14 actively adjusts the height of the shaft box 11 and the external spline shaft 12 to ensure that there is enough space between the upper grinding wheel 13 and the lower grinding wheel 10 for the workpiece to enter. For thinner workpieces such as silicon wafers, the reasonable distance adjustment design can maintain the stability and shape integrity of the workpiece and improve the reliability and stability of the processing.

[0019] An inner spline shaft 7 is rotatably mounted on one side of the top of the transmission housing 3. The inner spline shaft 7 and the outer spline shaft 12 are plugged into each other. A pulley drive unit 4 for driving the inner spline shaft 7 and the auxiliary shaft 8 to rotate synchronously is mounted on the top of the transmission housing 3. A PLC control panel 5 that is electrically connected to the input end of the pulley drive unit 4 and the lifting unit is mounted on one side of the surface of the upper housing 2.

[0020] The pulley drive unit 4 includes a stepper motor 401 mounted on one side of the top of the transmission housing 3, and a main shaft 6 mounted on the output end of the stepper motor 401. The two ends of the surface of the main shaft 6 are respectively mounted with a pulley drive structure 1 402 and a pulley drive structure 2 9 for driving the rotation of the inner spline shaft 7 and the secondary shaft 8. The pulley drive structure 1 402 includes a drive wheel mounted on one end of the surface of the main shaft 6 and a driven wheel mounted on one end of the surface of the inner spline shaft 7. A track is wound between the driven wheel and the drive wheel.

[0021] The rotational power of the stepper motor 401 is first transmitted to the main spindle 6, and the main spindle 6 drives the inner spline shaft 7 and the secondary shaft 8 to rotate through the pulley transmission structure 1 402 and the pulley transmission structure 2 9 respectively, thereby realizing the synchronous rotation of the lower grinding wheel 10 and the upper grinding wheel 13.

[0022] A protective cover is installed at the top of the lower frame 1 on one side of the upper housing 2. The top of the sub-shaft 8 extends through the outside of the protective cover. During the polishing process, polishing liquid can be sprayed onto the contact point between the grinding wheel and the workpiece. The polishing liquid is collected by the protective cover.

[0023] A support ring 1201 is fixed to one end of the surface of the external spline shaft 12, and an annular groove that fits into the support ring 1201 is provided at one end of the shaft box 11. During the sliding extension or extension of the external spline shaft 12 and the internal spline shaft 7, the two still maintain power transmission due to the keyway design. The support ring 1201 serves to connect the external spline shaft 12 and the shaft box 11, and ensures the stable rotation of the external spline shaft 12 and the upper grinding wheel 13.

[0024] In this embodiment, the operator first places the workpiece to be polished between the upper grinding wheel 13 and the lower grinding wheel 10, ensuring that the lower surface of the workpiece contacts the upper surface of the lower grinding wheel 10. Then, the dual-axis cylinder 14 is activated via the PLC control panel 5. The dual-axis cylinder 14 pulls the shaft box 11, the external spline shaft 12, and the upper grinding wheel 13 downwards until the lower surface of the upper grinding wheel 13 contacts the upper surface of the workpiece. At this time, power transmission continues between the external spline shaft 12 and the internal spline shaft 7. After the position between the workpiece and the grinding wheel is adjusted, the operator again activates the pulley drive unit 4 via the PLC control panel 5. The rotational power is sequentially transmitted to the internal spline shaft 7 and the main shaft 6, thereby causing the auxiliary shaft 8 and the internal spline shaft 7 to rotate synchronously. The synchronous rotation of the lower grinding wheel 10 and the upper grinding wheel 13 realizes the double-sided grinding and polishing function of the workpiece. Compared with the single grinding wheel structure, the bidirectional double grinding wheel structure can make full use of the equipment's running time, reduce the processing cycle, and thus improve the time utilization rate of the production line. Furthermore, by adjusting the distance according to the thickness of the workpiece to be polished, it can ensure that the distance between the lower grinding wheel 10, the upper grinding wheel 13 and the workpiece surface is appropriate, so that both sides of the workpiece can be fully ground and polished at the same time, resulting in more uniform surface smoothness and precision, and reducing processing errors and unevenness.

Claims

1. A grinding wheel device for processing photovoltaic equipment, characterized in that: The assembly includes a lower frame (1) and an upper housing (2) fixed to the top of the lower frame (1). A transmission housing (3) is fixed to the top of the upper housing (2). A support plate (101) is fixed to one end inside the lower frame (1). A secondary shaft (8) is rotatably mounted on one side of the top of the support plate (101). A lower grinding wheel (10) is mounted on the top of the secondary shaft (8). A shaft box (11) is slidably mounted on the outer wall of one side of the upper housing (2). An external spline shaft (12) is rotatably mounted inside the shaft box (11). A lower grinding wheel (10) is fixed to the bottom of the external spline shaft (12). The upper grinding wheel (13) is concentric with the wheel (10). A lifting unit for controlling the height of the shaft box (11) is installed on the outer wall of one side of the upper housing (2). An inner spline shaft (7) is rotatably installed on one side of the top of the transmission housing (3). The inner spline shaft (7) and the outer spline shaft (12) are plugged into each other. A pulley drive unit (4) for driving the inner spline shaft (7) and the auxiliary shaft (8) to rotate synchronously is installed at the top of the transmission housing (3). A PLC control panel (5) electrically connected to the input end of the pulley drive unit (4) and the lifting unit is installed on one side of the surface of the upper housing (2).

2. The grinding wheel device for processing photovoltaic equipment according to claim 1, characterized in that: The pulley drive unit (4) includes a stepper motor (401) installed on one side of the top of the transmission housing (3), and a main shaft (6) installed at the output end of the stepper motor (401). The two ends of the surface of the main shaft (6) are respectively equipped with a pulley drive structure one (402) and a pulley drive structure two (9) for driving the inner spline shaft (7) and the secondary shaft (8) to rotate.

3. The grinding wheel device for processing photovoltaic equipment according to claim 2, characterized in that: The pulley drive structure (402) includes a drive wheel mounted on one end of the surface of the main shaft (6) and a driven wheel mounted on one end of the surface of the inner spline shaft (7), with a track wound between the driven wheel and the drive wheel.

4. The grinding wheel device for processing photovoltaic equipment according to claim 1, characterized in that: A protective cover is installed on the top of the lower frame (1) on one side of the upper housing (2), and the top of the sub-shaft (8) extends through the outside of the protective cover.

5. The grinding wheel device for processing photovoltaic equipment according to claim 1, characterized in that: One end of the surface of the external spline shaft (12) is fixed with a support ring (1201), and one end of the shaft box (11) is provided with an annular groove that fits into the support ring (1201).

6. The grinding wheel device for processing photovoltaic equipment according to claim 1, characterized in that: The lifting unit is a right-angle seat installed on the outer wall of one side of the upper housing (2), and a double-axis cylinder (14) installed on the top of the right-angle seat. The top of the piston rod of the double-axis cylinder (14) is fixedly connected to the bottom of the shaft box (11).

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