Polyurethane photovoltaic frame drilling device

Abstract

The utility model relates to photovoltaic frame processing technical field, and disclose a kind of polyurethane photovoltaic frame drilling device, including operation platform, the upper end surface side of operation platform is equipped with fixed frame by bolt, first electric telescopic link is installed on the fixed frame, the free end of first electric telescopic link is connected with the drilling assembly for drilling operation to polyurethane photovoltaic frame, the upper end surface other side of operation platform is equipped with the fixing piece for fixing polyurethane photovoltaic frame, cooling structure is equipped between two fixing pieces;The utility model is provided with cooling structure, when using, by the strong jet stream formed by gas-liquid mixing, drilling area can be washed, soft adhesion debris generated by polyurethane material is taken away in time, effectively avoid the debris remaining hole wall or winding drill bit, guarantee drilling aperture precision and hole passage patency, solve the problem that the existing single air cooling leads to insufficient cold airflow impact force.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic frame processing technology, and in particular to a polyurethane photovoltaic frame drilling device. Background Technology

[0002] As the photovoltaic industry rapidly develops towards higher efficiency and lighter weight, polyurethane materials, with their excellent heat insulation, corrosion resistance and lightweight properties, are gradually replacing traditional metal materials as the core raw material for photovoltaic frames. As a key support and protective structure for photovoltaic modules, the drilling accuracy of the photovoltaic frame directly affects the assembly sealing, structural stability and power generation efficiency of the module.

[0003] Application No. 202323431402.0 discloses a frame drilling device. This device achieves cooling of the drill bit through an auxiliary mechanism. Its core uses a semiconductor cooler, fan, air shroud, and other components to form an air-cooling system. The aim is to remove the heat generated during drilling by cooling airflow, while simultaneously cleaning up debris in the drilling area, providing basic cooling and cleaning for drilling operations. However, during the drilling process, only single air-cooling is used for cooling and chip removal. In terms of debris removal, the debris generated from drilling polyurethane materials is in a soft, sticky state, and the air cooling relies solely on compressed air or cooling gas. The impact of the airflow is limited, and it cannot instantly wash away and remove the adhering debris remaining on the hole wall. At the same time, it is easy for the debris to become entangled in the drill bit, which will not only scratch the hole wall and reduce the surface roughness of the drill hole, but also affect the cutting accuracy of the drill bit, resulting in deviations in the drilling size and disrupting the unobstructed flow of the hole. Secondly, the local high heat generated during the drilling process is difficult to be quickly and fully discharged through air cooling, causing the temperature in the drilling area to continue to rise. Polyurethane material has poor thermal stability and is prone to thermal deformation due to high temperature, causing fluctuations in the processing dimensions of the frame, which seriously affects the assembly accuracy and structural sealing of the subsequent photovoltaic modules. Utility Model Content

[0004] This utility model proposes a drilling device for polyurethane photovoltaic frames to solve the problems of material thermal deformation caused by the use of single air cooling in existing polyurethane photovoltaic frame drilling, which results in insufficient airflow impact force to effectively remove soft and sticky debris, low air heat exchange efficiency and difficulty in rapid temperature control.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a polyurethane photovoltaic frame drilling device, comprising an operating table, a fixing frame mounted on one side of the upper end face of the operating table by bolts, a first electric telescopic rod mounted on the fixing frame, a drilling assembly for drilling polyurethane photovoltaic frames connected to the free end of the first electric telescopic rod, a fixing component for fixing the polyurethane photovoltaic frames on the other side of the upper end face of the operating table, a cooling structure between the two fixing components, the cooling structure comprising a mixing component and a spraying component, for mixing coolant with compressed air to form a gas-liquid mixture and spraying it onto the drilling area, a driving component on one side of the spraying component for driving the spraying component to rotate around the drill bit to achieve uniform coverage of the drilling area by the gas-liquid mixture.

[0006] Preferably, the spray assembly includes a disc disposed below the drilling assembly, the lower end of the disc is connected to a spray cylinder, and a ring block is connected through the lower end face of the disc. The outlet end of the ring block passes through and extends into a cavity reserved in the spray cylinder. Multiple nozzles are uniformly connected through the inner wall of the spray cylinder, and a connecting pipe is connected through the upper end face of the disc.

[0007] Preferably, the spray assembly further includes two fixed side plates symmetrically fixedly connected to the upper surface of the operating table. Each of the two fixed side plates has a block groove on its side wall near the disc. A connecting side block is embedded in the block groove. One end of the connecting side block is fixedly connected to the disc. A second electric telescopic rod is installed in the mounting groove reserved in the inner wall of the fixed side plate. The free end of the second electric telescopic rod is connected to the connecting side block.

[0008] Preferably, the mixing assembly includes a mixing cylinder connected to one side of the drilling assembly via a vertical plate. A vertical rod is fixedly connected to the inner wall of the mixing cylinder, and a spiral blade is connected to the outer wall of the vertical rod located in the lower half of the mixing cylinder. A liquid inlet pipe is connected through one side of the outer wall of the mixing cylinder, and an air inlet pipe is connected through one side of the upper end face of the mixing cylinder. The inlet end of the connecting pipe is connected through to the lower end face of the mixing cylinder.

[0009] Preferably, the driving assembly includes a placement seat fixedly connected to one side of the outer wall of the disk via a block. A connecting wheel is connected in a pre-drilled groove on the lower end face of the placement seat. An electromagnetic coil is sleeved on the outer wall of the connecting wheel. A permanent magnet cooperating with the electromagnetic coil is installed on the inner wall of the groove on the placement seat. A driving rod is fixedly connected to the lower end face of the connecting wheel. A gear is fixedly connected to the lower end face of the driving rod.

[0010] Preferably, an outer ring is fixedly connected to one side of the gear and to the outer wall of the spray cylinder, and the outer wall of the outer ring is uniformly connected with a plurality of tooth blocks that mesh with the gear.

[0011] Preferably, the driving assembly further includes a limiting outer ring disposed at the upper end of the outer sleeve ring. The limiting outer ring is fixedly connected to the outer wall of the spray cylinder, and the outer wall of the limiting outer ring is provided with a groove. An L-shaped rod is embedded in the groove, and the upper end face of the L-shaped rod is fixedly connected to the disc.

[0012] Preferably, a drilling groove is provided on the upper end surface of the operating table and below the drilling assembly, and a support frame is fixedly connected to the lower end surface of the operating table.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) This application is equipped with a cooling structure. When in use, the strong jet formed by the gas-liquid mixture can flush the drilling area and immediately remove the soft, sticky debris generated by the polyurethane material. This effectively prevents debris from remaining on the hole wall or wrapping around the drill bit, ensuring the accuracy of the drilling diameter and the smoothness of the hole. This solves the problem of insufficient cold air impact force caused by the use of single air cooling. At the same time, with the help of the synergistic heat exchange effect of the coolant and air, the local high heat in the drilling contact area can be continuously and efficiently discharged. By stabilizing the temperature, the thermal deformation error of the polyurethane material caused by high temperature can be effectively suppressed, ensuring the stability of the frame processing dimensions and the subsequent assembly accuracy of the photovoltaic module, thus making up for the low heat exchange efficiency of air cooling. (2) This application is equipped with a drive component, which can drive the spray cylinder to rotate at a constant speed outside the drill bit during the cooling process, and drive the nozzle to make a circular motion around the drill bit, so that the gas-liquid mixed jet can evenly cover all directions of the drilling area, eliminate the local scouring blind area of ​​a single fixed spray, further enhance the cleaning effect on polyurethane soft adhesive debris, and at the same time allow the coolant to fully contact the high temperature area, greatly improve the heat exchange efficiency to enhance the temperature control stability, and effectively make up for the shortcomings of uneven cooling and chip removal by fixed spray. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is an enlarged schematic diagram of the spray assembly of this utility model; Figure 4 This is a cross-sectional schematic diagram of the disc and spray cylinder of this utility model; Figure 5 This is a schematic diagram showing the connection between the drive assembly and the spray cylinder of this utility model; Figure 6 This is an enlarged schematic diagram of the driving component of this utility model; In the diagram: 1. Operating platform; 2. Fixing frame; 3. First electric telescopic rod; 4. Drilling assembly; 5. Fixing component; 6. Cooling structure; 61. Fixed side plate; 62. Disc; 63. Spray cylinder; 64. Ring block; 65. Nozzle; 66. Connecting pipe; 67. Block groove; 68. Connecting side block; 69. Second electric telescopic rod; 611. Mixing cylinder; 612. Vertical rod; 613. Spiral blade; 614. Liquid inlet pipe; 615. Air inlet pipe; 7. Drive assembly; 71. Placement seat; 72. Connecting wheel; 73. Electromagnetic coil; 74. Permanent magnet; 75. Drive rod; 76. Gear; 77. Outer ring; 78. Tooth block; 711. Limiting outer ring; 712. Groove; 713. L-shaped rod; 8. Drill groove; 9. Support placement frame. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-2 As shown, a polyurethane photovoltaic frame drilling device includes an operating table 1. A fixing frame 2 is bolted to one side of the upper end face of the operating table 1. A first electric telescopic rod 3 is mounted on the fixing frame 2. The free end of the first electric telescopic rod 3 is connected to a drilling assembly 4 for drilling polyurethane photovoltaic frames. (The drilling assembly 4 consists of a mounting frame, a drive motor, and a drill bit. The mounting frame is connected to the free end of the first electric telescopic rod 3, the drive motor is mounted on the mounting frame, and the drill bit is connected to the output end of the drive motor.) The other side of the upper end face of the operating table 1 is provided with a fixing member 5 for fixing the polyurethane photovoltaic frame. (The fixing member 5 consists of a fixing seat, a pressure block, and a screw. The fixing seat is fixedly installed on the upper end face of the operating table 1, the screw is threadedly connected to the fixing seat, and the pressure block is connected to one end of the screw and located inside the fixing seat.) A drill groove 8 is opened on the upper end face of the operating table 1 below the drilling assembly 4, and a support frame 9 is fixedly connected to the lower end face of the operating table 1.

[0018] Specifically, when drilling holes in the polyurethane photovoltaic frame, the photovoltaic frame is first placed inside two fixed seats. Then, the screw is turned, and the screw drives the bottom pressure block to slowly descend under the action of the threaded transmission until the pressure block is in close contact with the upper surface of the photovoltaic frame. The clamping force of the pressure block is used to firmly fix the frame, effectively preventing the frame from shifting due to vibration during the drilling process. After fixing, the first electric telescopic rod 3 is started. The first electric telescopic rod 3 extends downward, and the drill bit connected to its output end descends synchronously with the first electric telescopic rod 3 until the cutting end of the drill bit contacts the position to be drilled in the photovoltaic frame. Finally, the drive motor coaxially connected to the drill bit starts to run, driving the drill bit to rotate. Through the cutting action of the drill bit, a hole that meets the size requirements is formed in the polyurethane photovoltaic frame, completing the entire drilling operation.

[0019] Among them, see Figures 1-4 As shown, a cooling structure 6 is provided between the two fixing members 5. The cooling structure 6 includes a mixing component and a spraying component, which are used to mix the coolant with compressed air to form a gas-liquid mixture and spray it onto the drilling area.

[0020] The spray assembly includes a disc 62 located below the drilling assembly 4. The lower end of the disc 62 is connected to a spray cylinder 63, and a ring block 64 is connected through the lower end face of the disc 62. The outlet end of the ring block 64 extends through and into the cavity reserved in the spray cylinder 63. Multiple nozzles 65 are evenly connected through the inner wall of the spray cylinder 63, and a connecting pipe 66 is connected through the upper end face of the disc 62.

[0021] The spray assembly also includes two fixed side plates 61 symmetrically fixedly connected to the upper surface of the operating table 1. Each of the two fixed side plates 61 has a block groove 67 on its side wall near the disc 62. A connecting side block 68 is embedded in the block groove 67. One end of the connecting side block 68 is fixedly connected to the disc 62. A second electric telescopic rod 69 is installed in the mounting groove reserved in the inner wall of the fixed side plate 61. The free end of the second electric telescopic rod 69 is connected to the connecting side block 68.

[0022] The mixing assembly includes a mixing cylinder 611 connected to one side of the drilling assembly 4 via a vertical plate. A vertical rod 612 is fixedly connected to the inner wall of the mixing cylinder 611. A spiral blade 613 is connected to the outer wall of the vertical rod 612 and located in the lower half of the mixing cylinder 611. A liquid inlet pipe 614 is connected through one side of the outer wall of the mixing cylinder 611, and an air inlet pipe 615 is connected through one side of the upper end face of the mixing cylinder 611. The inlet end of the connecting pipe 66 is connected through to the lower end face of the mixing cylinder 611.

[0023] Through the above technical solution: After the cutting end of the drill bit contacts the hole to be drilled in the photovoltaic frame, the second electric telescopic rod 69 retracts, causing the connecting side block 68 to move downwards within the slot 67 opened in the fixed side plate 61. This, in turn, pulls the spray assembly down synchronously and onto the outside of the drill bit. Subsequently, the air inlet pipe 615 and the liquid inlet pipe 614 are sealed and connected in sequence. The coolant in the liquid storage tank is transported to the middle of the mixing cylinder 611 through the liquid inlet pipe 614, while the high-pressure compressed air in the air storage tank is injected into the mixing cylinder 611 through the air inlet pipe 615. After the gas and liquid phases meet inside the mixing cylinder 611, they flow at high speed along the spiral trajectory with the help of the guiding effect of the spiral blades 613 inside the cylinder. The spiral blades 613 continuously cut, disperse, and reassemble the gas and liquid. The new convergence causes the previously separated coolant and compressed air to collide and mix frequently, accelerating the diffusion and penetration between molecules, significantly shortening the mixing time, and finally forming a uniform and stable gas-liquid mixture. This gas-liquid mixture is then transported to the disk 62 for temporary storage through the connecting pipe 66, and then enters the spray cylinder 63 through the guide of the ring block 64. Finally, it is sprayed onto the cutting end of the drill bit and the drilling area by multiple nozzles 65 arranged in a ring array. This gas-liquid jet can thoroughly remove soft, adhering debris, efficiently remove local heat, and achieve targeted processing by adjusting the gas-liquid parameters. It solves the defects of insufficient impact force of single air cooling, low heat exchange efficiency, and poor control adaptability, ensuring drilling accuracy and frame processing stability.

[0024] See Figures 3-6 As shown, a drive component 7 is provided on one side of the spray assembly, which is used to drive the spray assembly to rotate around the drill bit to achieve uniform coverage of the borehole area by the gas-liquid mixture.

[0025] The drive assembly 7 includes a placement seat 71 fixedly connected to one side of the outer wall of the disk 62 via a block. A connecting wheel 72 is connected in a pre-drilled groove on the lower end face of the placement seat 71. An electromagnetic coil 73 is sleeved on the outer wall of the connecting wheel 72. A permanent magnet 74 that works with the electromagnetic coil 73 is installed on the inner wall of the groove on the placement seat 71. A drive rod 75 is fixedly connected to the lower end face of the connecting wheel 72. A gear 76 is fixedly connected to the lower end face of the drive rod 75.

[0026] A jacket ring 77 is fixedly connected to one side of the gear 76 and to the outer wall of the spray cylinder 63. Multiple tooth blocks 78 that mesh with the gear 76 are evenly connected to the outer wall of the jacket ring 77.

[0027] The drive assembly 7 also includes a limiting outer ring 711 located at the upper end of the outer ring 77. The limiting outer ring 711 is fixedly connected to the outer wall of the spray cylinder 63, and the outer wall of the limiting outer ring 711 has a groove 712. An L-shaped rod 713 is embedded inside the groove 712, and the upper end face of the L-shaped rod 713 is fixedly connected to the disc 62.

[0028] Through the above technical solution: During the cooling process, the electromagnetic coil 73 is energized. The magnetic field generated by the electromagnetic coil 73 interacts strongly with the permanent magnet 74, instantly generating a stable driving force that drives the connecting wheel 72 to rotate. This, in turn, drives the gear 76 connected to it to rotate synchronously via the drive rod 75. At this time, the gear 76 meshes with multiple toothed blocks 78 on the outer outer ring 77 of the spray cylinder 63, transmitting rotational power to the spray cylinder 63. This achieves uniform rotation of the spray cylinder 63 outside the drill bit. This operation, combined with the gas-liquid spraying, allows the nozzle 65 to move in a circular motion, eliminating blind spots and enhancing the chip removal effect. It improves heat exchange efficiency and compensates for the shortcomings of fixed spraying. During the rotation of the spray cylinder 63, the limiting outer ring 711 connected to its outer wall rotates smoothly along the outside of the L-shaped rod 713, which can limit the radial displacement of the spray cylinder 63 and prevent it from deviating due to rotation or airflow impact. This ensures the relative positional accuracy of the nozzle 65 with the drill bit and the drilling area, and ensures that the gas-liquid jet always acts accurately on the target area. This not only improves the reliability of cooling and chip removal, but also avoids the impact of spray deviation on drilling accuracy. The overall structure is simple and the transmission is stable, which significantly enhances the working efficiency and adaptability of the cooling system.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyurethane photovoltaic frame drilling device, comprising an operating table (1), characterized in that: A fixing frame (2) is bolted to one side of the upper end face of the operating table (1). A first electric telescopic rod (3) is installed on the fixing frame (2). The free end of the first electric telescopic rod (3) is connected to a drilling assembly (4) for drilling polyurethane photovoltaic frames. A fixing member (5) for fixing polyurethane photovoltaic frames is provided on the other side of the upper end face of the operating table (1). A cooling structure (6) is provided between the two fixing members (5). The cooling structure (6) includes a mixing assembly and a spraying assembly, which is used to mix coolant with compressed air to form a gas-liquid mixture and spray it onto the drilling area. A driving assembly (7) is provided on one side of the spraying assembly, which is used to drive the spraying assembly to rotate around the drill bit to achieve uniform coverage of the gas-liquid mixture on the drilling area.

2. The polyurethane photovoltaic frame drilling device according to claim 1, characterized in that: The spray assembly includes a disc (62) located below the drilling assembly (4). The lower end of the disc (62) is connected to a spray cylinder (63), and a ring block (64) is connected through the lower end face of the disc (62). The outlet end of the ring block (64) extends through and into the cavity reserved in the spray cylinder (63). Multiple nozzles (65) are uniformly connected through the inner wall of the spray cylinder (63), and a connecting pipe (66) is connected through the upper end face of the disc (62).

3. The polyurethane photovoltaic frame drilling device according to claim 2, characterized in that: The spray assembly also includes two fixed side plates (61) symmetrically fixedly connected to the upper surface of the operating table (1). The two fixed side plates (61) have block grooves (67) on the side walls near the disc (62). A connecting side block (68) is embedded in the block groove (67). One end of the connecting side block (68) is fixedly connected to the disc (62). A second electric telescopic rod (69) is installed in the installation groove reserved in the inner wall of the fixed side plate (61). The free end of the second electric telescopic rod (69) is connected to the connecting side block (68).

4. The polyurethane photovoltaic frame drilling device according to claim 3, characterized in that: The mixing assembly includes a mixing cylinder (611) connected to one side of the drilling assembly (4) via a vertical plate. A vertical rod (612) is fixedly connected to the inner wall of the mixing cylinder (611). A spiral blade (613) is connected to the outer wall of the vertical rod (612) and located in the lower half of the mixing cylinder (611). A liquid inlet pipe (614) is connected through one side of the outer wall of the mixing cylinder (611), and an air inlet pipe (615) is connected through one side of the upper end face of the mixing cylinder (611). The inlet end of the connecting pipe (66) is connected through the lower end face of the mixing cylinder (611).

5. The polyurethane photovoltaic frame drilling device according to claim 2, characterized in that: The drive assembly (7) includes a placement seat (71) fixedly connected to one side of the outer wall of the disc (62) by a block. A connecting wheel (72) is connected in a pre-drilled groove on the lower end face of the placement seat (71). An electromagnetic coil (73) is sleeved on the outer wall of the connecting wheel (72). A permanent magnet (74) that works with the electromagnetic coil (73) is installed on the inner wall of the groove on the placement seat (71). A drive rod (75) is fixedly connected to the lower end face of the connecting wheel (72). A gear (76) is fixedly connected to the lower end face of the drive rod (75).

6. The polyurethane photovoltaic frame drilling device according to claim 5, characterized in that: An outer ring (77) is fixedly connected to one side of the gear (76) and to the outer wall of the spray cylinder (63). The outer wall of the outer ring (77) is evenly connected with a plurality of tooth blocks (78) that mesh with the gear (76).

7. The polyurethane photovoltaic frame drilling device according to claim 6, characterized in that: The drive assembly (7) also includes a limiting outer ring (711) located at the upper end of the outer sleeve ring (77). The limiting outer ring (711) is fixedly connected to the outer wall of the spray cylinder (63), and the outer wall of the limiting outer ring (711) is provided with a groove (712). An L-shaped rod (713) is embedded inside the groove (712), and the upper end face of the L-shaped rod (713) is fixedly connected to the disc (62).

8. The polyurethane photovoltaic frame drilling device according to claim 1, characterized in that: The upper end face of the operating table (1) and below the drilling assembly (4) is provided with a drilling groove (8), and the lower end face of the operating table (1) is fixedly connected with a support frame (9).

Images