Forming and manufacturing device for aluminum flange in high-voltage electric appliance

Abstract

The utility model discloses a high-voltage electric appliance aluminum flange forming manufacturing device which comprises an oil press, an upper die and a lower die, the lower die is fixed on a pressure cylinder piston rod of the oil press, the upper die is fixedly connected with an upper plane of a gantry of the oil press, and a die cavity used for pouring molten aluminum is arranged on the lower die. Cooling runners used for cooling molten aluminum are arranged on the periphery of the die cavity, and the upper die is used for conducting secondary pressure forming on blanks cooled and formed in the die cavity. When the aluminum flange forming die is used, molten aluminum is poured into the die cavity, after forming, a pressing shaft of an oil press drives the upper die to press downwards, aluminum is subjected to pressure larger than 1 ton per square centimeter and secondary pressure forming in a high-temperature state, and an aluminum flange product is made to be better in tissue compactness, higher in strength, accurate in size and small in follow-up machining allowance. And the material and the processing cost are greatly saved. By means of the device, products can be pressed after being cast, secondary heating is not needed, energy consumption is low, waste is avoided, and therefore the device is energy-saving, environment-friendly and low in cost.

Description

Technical Field

[0001] The utility model relates to a forming and manufacturing device for an aluminum flange in a high-voltage electrical appliance. Background Art

[0002] An aluminum flange widely used in high-voltage electrical appliances (largely used in various gas-filled or oil-filled housings). The traditional method is to use castings or thick aluminum plates for cutting, or forging or rolling forming processes, and then use a lathe to process Figure 4 Shape, the casting will have many pores, insufficient density, low strength, thick aluminum plate cutting wastes materials, large processing allowance, high cost, forging and rolling forming production processes, high energy consumption, long production cycle, and high production cost. Summary of the invention

[0003] The utility model provides a forming and manufacturing device for aluminum flanges in high-voltage electrical appliances in order to solve the problems existing in the prior art.

[0004] The technical solutions adopted in this utility model are:

[0005] A device for forming and manufacturing aluminum flanges in high-voltage electrical appliances comprises a hydraulic press, an upper mold and a lower mold, wherein the lower mold is fixed to the cylinder piston rod of the hydraulic press, the upper mold is fixedly connected to the upper plane of the gantry of the hydraulic press, a mold cavity for pouring molten aluminum is provided on the lower mold, and cooling channels for cooling the molten aluminum are provided around the mold cavity, and the upper mold is used for secondary pressurization of the cooled and formed blank in the mold cavity.

[0006] Furthermore, the lower mold includes an outer mold and an inner mold. The outer mold is provided with a groove. The cross-section of the groove can be T-shaped, rectangular, or other special shapes. The inner mold is fixed in the groove, and the mold cavity is formed between the outer wall of the inner mold and the groove wall of the groove.

[0007] Furthermore, cooling channels are provided on both the outer mold and the inner mold.

[0008] Furthermore, a boss portion is provided on the lower end surface of the upper mold, and the boss portion is matched with the upper end port of the mold cavity.

[0009] Furthermore, a discharge rod is connected to the lower mold, and the discharge rod moves vertically to eject the molded part that is secondarily pressurized in the mold cavity.

[0010] Furthermore, the hydraulic press cylinder is a bidirectional cylinder that can be raised or lowered, and the workbench of the hydraulic press is guided by a guide rail.

[0011] The utility model has the following beneficial effects:

[0012] When the utility model is used, aluminum liquid is poured into the mold cavity. After forming, the piston rod of the hydraulic press drives the lower mold to press upward. Under high temperature, the aluminum is subjected to a pressure greater than 1 ton per square centimeter. The secondary pressure forming makes the aluminum flange product have better organization density, higher strength, and accurate size. The subsequent processing allowance is very small, which greatly saves material and processing costs. The device allows the product to be pressed after "casting", does not require secondary heating, has low energy consumption, and no waste, so it is energy-saving and environmentally friendly, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model.

[0014] Figure 2 This is a structural diagram of the upper mold and the lower mold.

[0015] Figure 3 This is the assembly drawing of the upper mold and the lower mold.

[0016] Figure 4 This is the structural diagram of the aluminum flange that is widely used in existing high-voltage electrical equipment. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 3 The utility model is a high-voltage electrical appliance aluminum flange forming manufacturing device, comprising a hydraulic press 1, an upper mold 2 and a lower mold 3. The upper mold 2 is fixedly connected to the upper plane of the gantry of the hydraulic press 1, and the lower mold 3 is fixed to the piston rod of the pressure cylinder 11 of the hydraulic press 1. A mold cavity 31 for pouring molten aluminum is provided on the lower mold 3. A cooling channel 30 for cooling the molten aluminum is provided on the lower mold 3 and around the mold cavity 31. The upper mold 2 is used for secondary pressurization of the cooled and formed blank in the mold cavity 31.

[0019] When the utility model is used, aluminum liquid is poured into the mold cavity 31. After forming (no need to wait for complete cooling and forming), the piston rod of the hydraulic press 1 cylinder 11 drives the lower mold to rise. During the movement, the workbench at the end of the cylinder 11 is guided by the guide rail 12. Under high temperature, the aluminum is subjected to a pressure greater than 1 ton per square centimeter, and the secondary pressure forming is performed, so that the aluminum flange product has better organization density, higher strength, and accurate size, and the subsequent processing allowance is very small, which greatly saves material and processing costs. This device allows the product to be pressed after "casting", without the need for secondary heating, low energy consumption, no waste, and therefore energy-saving and environmental protection, and high material utilization.

[0020] The lower mold 3 in the utility model includes an outer mold 32 and an inner mold 33. A groove is provided on the outer mold 32. The cross section of the groove can be T-shaped, rectangular, or other special shapes. The inner mold 33 is fixed in the groove by bolts. The mold cavity 31 is formed between the outer wall of the inner mold 33 and the groove wall of the groove. Cooling channels 30 are provided on both the outer mold 32 and the inner mold 33. A boss portion 21 is provided on the lower end surface of the upper mold 2. After the upper mold 2 is pressed against the lower mold 3, the boss portion 21 extends into the mold cavity 31. The assembly structure is as shown in FIG. Figure 3 The hydraulic press cylinder is a bidirectional cylinder that can rise or fall.

[0021] When the utility model is used, aluminum liquid can be directly poured into the mold cavity, the ingot can be heated and then placed into the mold 3, or the ingot in a high temperature state after casting can be directly placed in the lower mold 3 and then subjected to secondary pressure molding.

[0022] After the blank is pressurized for the second time and formed into a molded part, in order to facilitate the ejection of the molded part, a discharge rod 4 is connected to the lower mold 3. The discharge rod 4 is driven by a cylinder and realizes vertical movement. The discharge rod 4 is used to eject the molded part that is pressurized for the second time in the mold cavity 31.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A device for forming and manufacturing aluminum flanges in high-voltage electrical appliances, characterized in that: The invention comprises a hydraulic press (1), an upper mold (2) and a lower mold (3), wherein the lower mold (3) is fixed on a piston rod of a pressure cylinder (11) of the hydraulic press (1), the upper mold (2) is fixedly connected to a gantry of the hydraulic press (1), a mold cavity (31) for pouring molten aluminum is provided on the lower mold (3), and cooling channels (30) for cooling the molten aluminum are provided around the mold cavity (31), and the upper mold (2) is used to perform secondary pressure molding on the blank cooled and molded in the mold cavity (31).

2. The aluminum flange forming and manufacturing device for high voltage electrical appliances according to claim 1, characterized in that: The lower mold (3) comprises an outer mold (32) and an inner mold (33); the outer mold (32) is provided with a groove; the inner mold (33) is fixed in the groove; the mold cavity (31) is formed between the outer wall of the inner mold (33) and the groove wall of the groove.

3. The aluminum flange forming and manufacturing device for high voltage electrical appliances according to claim 2, characterized in that: The outer mold (32) and the inner mold (33) are both provided with cooling channels (30).

4. The aluminum flange forming and manufacturing device for high voltage electrical appliances according to claim 1, characterized in that: A boss portion (21) is provided on the lower end surface of the upper mold (2), and the boss portion (21) is matched with the upper end port of the mold cavity (31).

5. The aluminum flange forming and manufacturing device for high voltage electrical appliances according to claim 1, characterized in that: The lower mold (3) is connected with a discharge rod (4), which moves vertically and ejects the molded part that has been secondarily pressurized in the mold cavity (31).

6. The aluminum flange forming and manufacturing device for high voltage electrical appliances according to claim 1, characterized in that: The pressure cylinder (11) of the hydraulic press (1) is a bidirectional cylinder.

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