Machining tool for photovoltaic module junction box die casting

Abstract

The utility model discloses a processing jig for a photovoltaic module junction box die casting, which comprises a jig shell, a forming groove is arranged at the top in the jig shell, and a placing through groove is arranged at the bottom in the jig shell; an ejection assembly is arranged in the placement through groove and comprises a nitrogen box fixedly connected to the inner bottom of the placement through groove, an air pump communicating with one side of the nitrogen box, a supercharger connected to the top of the air pump and an air outlet hose communicating with the supercharger, an electric push rod is fixedly connected to the top of the nitrogen box, and the top of the electric push rod extends into the forming groove. The top of the surface of the electric push rod is sleeved with an air outlet cylinder, the surface of the air outlet cylinder communicates with an air outlet, and the other end of the air outlet hose communicates with the air outlet cylinder. According to the utility model, an electric and pneumatic demoulding mode is utilized, so that the problems of poor demoulding effect and easy edge bending and deformation of a processing tool for a photovoltaic module junction box die casting in the prior art are solved.

Description

Technical Field

[0001] This utility model belongs to the field of mold design and manufacturing technology, and in particular relates to a processing tool for die casting parts of photovoltaic module junction boxes. Background Technology

[0002] In photovoltaic module production, die-casting fixtures for junction boxes are auxiliary tools specifically designed for the efficient and precise manufacture of junction box housings. These mainly include die-casting molds, positioning fixtures, and testing tooling. Die-casting fixtures for photovoltaic junction boxes are key tools for ensuring product consistency and reducing costs, and directly affect the electrical performance, mechanical lifespan, and overall reliability of the photovoltaic system.

[0003] Existing machining tools for die-cast photovoltaic module junction boxes still have some problems during use, such as poor demolding effect. Common hydraulic cylinder ejection for demolding easily leads to bending and deformation of the edges of the die-cast photovoltaic module junction box, thus affecting the quality of the finished product. Therefore, we provide a machining tool for die-cast photovoltaic module junction boxes to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a processing tool for die-cast parts of photovoltaic module junction boxes. By using an electric and pneumatic demolding method, it solves the problem that the demolding effect of existing processing tools for die-cast parts of photovoltaic module junction boxes is not good, which easily leads to edge bending and deformation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model is a processing tool for die-cast parts of photovoltaic module junction boxes, including a tool housing, a forming groove is formed at the top of the tool housing, and a placement through groove is formed at the bottom of the tool housing;

[0007] The placement channel is equipped with a top ejector assembly, which includes a nitrogen box fixedly connected to the bottom of the placement channel, an air pump connected to one side of the nitrogen box, a booster connected to the top of the air pump, and an exhaust hose connected to the booster. An electric push rod is fixedly connected to the top of the nitrogen box. The top of the electric push rod extends into the forming groove and is fixedly connected to a top ejector plate. An exhaust cylinder is fitted on the top of the surface of the electric push rod. An exhaust port is connected to the surface of the exhaust cylinder. The other end of the exhaust hose is connected to the exhaust cylinder. The top ejector assembly is used to quickly eject the die-cast part after forming.

[0008] Each of the four corners of the top of the fixture housing is provided with a buffer assembly. The buffer assembly includes a buffer box installed inside the top of the fixture housing and a buffer cylinder fixedly connected inside the buffer box. The buffer assembly is used to buffer the impact force during pressing.

[0009] The present invention is further configured such that the buffer assembly includes a rubber column fixedly connected to the bottom of the buffer cylinder, a horizontal plate fixedly connected to the top and bottom of the inner wall of the buffer box, a vertical plate slidably connected between the two sets of horizontal plates, a spring fixedly connected to one side of the vertical plate, the other end of the spring fixedly connected to the inner wall of the buffer box, and a circular protrusion fixedly connected to the other side of the vertical plate, the free end of the circular protrusion extending into the interior of the buffer cylinder.

[0010] The present invention is further configured such that a fixing rod is fixedly connected to one side of the booster, and the other end of the fixing rod is fixedly connected to the inner wall of the placement channel.

[0011] The present invention is further configured such that an air inlet pipe is connected to one side of the nitrogen box for injecting nitrogen.

[0012] The present invention is further configured such that a fixing pad is fixedly connected to the bottom of the air pump, and the bottom of the fixing pad is fixedly connected to the bottom of the placement groove.

[0013] The present invention is further configured such that a movable cavity is provided at the top of the placement groove, the diameter of which is larger than the diameter of the air outlet cylinder, for vertical movement of the air outlet cylinder.

[0014] The present invention is further configured such that mounting blocks are fixedly connected to the bottom of both sides of the fixture housing, and mounting holes are provided inside the mounting blocks.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model utilizes the extension of an electric push rod to drive the top plate upward. The top plate lifts the formed photovoltaic module junction box die-cast part, achieving the purpose of demolding. During the extension of the electric push rod, an air pump blows high-pressure gas through an air outlet hose, air outlet cylinder, and air outlet into the forming groove. The blown high-pressure gas lifts the edge part of the photovoltaic module junction box die-cast part, preventing edge bending and deformation. This utility model uses an electric and pneumatic demolding method to solve the problem of poor demolding effect and easy edge bending and deformation in the processing jigs used for photovoltaic module junction box die-cast parts in the prior art.

[0017] 2. This utility model can buffer the downward pressure generated during die casting by setting a buffer component, thereby improving the service life of the pressure applying mechanism and making it less prone to damage. The setting of multiple sets of springs can effectively reduce the impact force generated during downward pressure. The setting of the booster can increase the pressure during air output, so as to better blow up the die-cast photovoltaic module junction box after molding.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a perspective view of a machining tool for die-casting junction boxes for photovoltaic modules.

[0021] Figure 2 This is a partial structural diagram of a machining tool for die-casting junction boxes of photovoltaic modules.

[0022] Figure 3 A machining tool for die-casting junction boxes for photovoltaic modules. Figure 2 A magnified view of A in the middle.

[0023] Figure 4 This is an exploded view of a partial structure of a machining tool for die-casting junction boxes of photovoltaic modules.

[0024] Figure 5 This is a cross-sectional view of a buffer box in a machining fixture used for die-casting junction boxes of photovoltaic modules.

[0025] Figure 6 A machining tool for die-casting junction boxes for photovoltaic modules. Figure 5 A magnified view of B in the middle.

[0026] In the attached diagram: 1. Fixture housing; 2. Forming groove; 3. Placement slot; 4. Nitrogen box; 5. Air pump; 6. Air outlet hose; 7. Intensifier; 8. Electric push rod; 9. Top plate; 10. Air outlet cylinder; 11. Air outlet; 12. Buffer box; 13. Buffer cylinder; 14. Rubber column; 15. Horizontal plate; 16. Vertical plate; 17. Spring; 18. Circular protrusion. Detailed Implementation

[0027] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1

[0029] Please see Figures 1-6This utility model is a processing tool for die-cast parts of photovoltaic module junction boxes. It includes a tool housing 1, a forming groove 2 is formed at the top of the tool housing 1, and a placement groove 3 is formed at the bottom of the tool housing 1. A material ejector assembly is provided inside the placement groove 3. The material ejector assembly includes a nitrogen box 4 fixedly connected to the bottom of the placement groove 3, an air pump 5 connected to one side of the nitrogen box 4, a booster 7 connected to the top of the air pump 5, and an air outlet hose 6 connected to the booster 7. An electric push rod 8 is fixedly connected to the top of the nitrogen box 4. The top of the electric push rod 8 extends into the forming groove 2 and is fixedly connected to a material ejector plate 9. An air outlet cylinder 10 is sleeved on the top of the surface of the electric push rod 8. An air outlet 11 is connected to the surface of the air outlet cylinder 10. The other end of the air outlet hose 6 is connected to the air outlet cylinder 10. The material ejector assembly is used to quickly eject the die-cast parts after forming.

[0030] A buffer assembly is provided at each of the four corners of the top of the fixture housing 1. The buffer assembly includes a buffer box 12 installed at the top inside the fixture housing 1 and a buffer cylinder 13 fixedly connected inside the buffer box 12. The buffer assembly is used to buffer the impact force during pressing.

[0031] Further details: The molding groove 2 is designed to process photovoltaic module junction boxes, facilitating die casting with the pressure application mechanism. The nitrogen box 4 is used to store nitrogen for use with the air pump 5. The booster 7 is used to increase the pressure during gas supply. The electric push rod 8 and the top plate 9 are designed to easily lift the molded part for demolding. Multiple air outlets 11 are arranged in a circumferential array to ensure uniformity of air output.

[0032] Example 2

[0033] Please see Figures 1-6Based on Embodiment 1, the buffer assembly further includes a rubber column 14 fixedly connected to the bottom of the buffer cylinder 13. Horizontal plates 15 are fixedly connected to the top and bottom of the inner wall of the buffer box 12. A vertical plate 16 is slidably connected between the two sets of horizontal plates 15. A spring 17 is fixedly connected to one side of the vertical plate 16, and the other end of the spring 17 is fixedly connected to the inner wall of the buffer box 12. A circular protrusion 18 is fixedly connected to the other side of the vertical plate 16. The free end of the circular protrusion 18 extends into the interior of the buffer cylinder 13. During the pressing process, the stamping component generates an impact force. The guide rod (existing technology) in the stamping component, when inserted into the buffer cylinder 13, will squeeze the circular protrusion 18, causing the circular protrusion 18 to move into the interior of the buffer box 12 and impacting the interior of the buffer box 12. The spring 17 is compressed, and the rubber column 14 is also compressed while it is moving downward. The combination of spring 17 and rubber column 14 is used to buffer the stamping parts in the prior art, so as to protect the processing tool. A fixed rod is fixedly connected to one side of the booster 7, and the other end of the fixed rod is fixedly connected to the inner wall of the placement channel 3. An air inlet pipe is connected to one side of the nitrogen box 4 for injecting nitrogen. A fixed pad is fixedly connected to the bottom of the air pump 5, and the bottom of the fixed pad is fixedly connected to the bottom of the placement channel 3. A movable cavity is opened at the top of the placement channel 3. The diameter of the movable cavity is larger than the diameter of the air outlet 10 for vertical movement of the air outlet 10. Mounting blocks are fixedly connected to the bottom of both sides of the tool housing 1. Mounting holes are opened inside the mounting blocks.

[0034] Further details: The rubber column 14 is made of nitrile rubber, which provides better cushioning for the stamping parts. The vertical plate 16 is slidably connected between the two horizontal plates 15 to ensure the horizontal movement of the circular protrusion 18, so as to compress the spring 17. The fixed rod improves the stability of the booster 7 during use. The fixed pad supports and fixes the air pump 5. The movable cavity ensures that the air outlet 10 can move vertically. The mounting block and mounting hole facilitate the installation of the processing fixture.

[0035] The working principle of this utility model is as follows: During the demolding process of die-cast parts, the middle is usually lifted first, followed by the two sides. This existing demolding method can easily cause wrinkles or bending around the die-cast parts. In this utility model, when the molded photovoltaic module junction box die-cast part needs to be removed, the electric push rod 8 is activated. The electric push rod 8 extends and moves the top plate 9, which lifts the molded part for demolding. During the process of the electric push rod 8 lifting the top plate 9, the air pump 5 is turned on. The air pump 5 discharges nitrogen from the nitrogen box 4 through the outlet hose 6 into the outlet cylinder 10, and then discharges it through the outlet 11 connected to the surface of the outlet cylinder 10. The discharged high-pressure gas blows up the edges of the molded part, thus solving the problem of easy bending and deformation of the edges. Furthermore, the combination of electric and pneumatic methods can greatly improve the yield rate and reduce the failure rate of electric components. For example, if only the electric push rod is used for ejection, the electric push rod is prone to damage due to long-term high-load operation. Combining pneumatics can distribute the load, resulting in higher stability and ensuring better performance.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A processing jig for a die casting of a junction box of a photovoltaic module, comprising a jig housing (1), characterized in that: The inside top of the mold shell (1) is provided with a forming groove (2), and the inside bottom of the mold shell (1) is provided with a placing through groove (3); The placing through groove (3) is internally provided with a material ejection assembly, which comprises a nitrogen box (4) fixedly connected to the inside bottom of the placing through groove (3), a gas pump (5) communicated to one side of the nitrogen box (4), a pressure booster (7) connected to the top of the gas pump (5), and an air outlet hose (6) communicated to the pressure booster (7), the top of the nitrogen box (4) is fixedly connected with an electric push rod (8), the top of the electric push rod (8) extends to the inside of the forming groove (2) and is fixedly connected with a material ejection plate (9), the surface of the electric push rod (8) is sleeved with an air outlet cylinder (10), the surface of the air outlet cylinder (10) is communicated with an air outlet (11), the other end of the air outlet hose (6) is communicated with the air outlet cylinder (10), and the material ejection assembly is used for quickly ejecting the formed die casting; The top of the mold shell (1) is provided with a buffer assembly at each of the four corners, the buffer assembly comprises a buffer box (12) installed on the inside top of the mold shell (1), and a buffer cylinder (13) fixedly connected to the inside of the buffer box (12), and the buffer assembly is used for buffering the impact force during pressing.

2. A processing fixture for die casting of junction box of a photovoltaic module according to claim 1, characterized in that: The buffer assembly further comprises a rubber column (14) fixedly connected to the inside bottom of the buffer cylinder (13), the inside top and bottom of the buffer box (12) are fixedly connected with a horizontal plate (15), a vertical plate (16) is slidingly connected between the two horizontal plates (15), one side of the vertical plate (16) is fixedly connected with a spring (17), the other end of the spring (17) is fixedly connected with the inside wall of the buffer box (12), the other side of the vertical plate (16) is fixedly connected with a circular protrusion (18), and the free end of the circular protrusion (18) extends to the inside of the buffer cylinder (13).

3. A machining jig for a die casting of a junction box of a photovoltaic module according to claim 1, characterized in that: The pressure booster (7) is fixedly connected with a fixed rod on one side, and the other end of the fixed rod is fixedly connected with the inside wall of the placing through groove (3).

4. A machining jig for a die casting of a junction box of a photovoltaic module according to claim 1, characterized in that: The nitrogen box (4) is communicated with an air inlet pipe on one side, which is used for injecting nitrogen.

5. A machining jig for a die casting of a junction box of a photovoltaic module according to claim 1, characterized in that: The bottom of the gas pump (5) is fixedly connected with a fixed pad, and the bottom of the fixed pad is fixedly connected with the inside bottom of the placing through groove (3).

6. A machining jig for a die casting of a junction box of a photovoltaic module according to claim 1, characterized in that: The top of the placing through groove (3) is provided with a movable cavity, the diameter of the movable cavity is greater than that of the air outlet cylinder (10), and the movable cavity is used for vertical movement of the air outlet cylinder (10).

7. A machining jig for die casting of a junction box of a photovoltaic module according to claim 1, characterized in that: The bottom of the mold shell (1) is fixedly connected with a mounting block, and the mounting block is internally provided with a mounting hole.

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