Movable electric input device of oil press

Abstract

The utility model relates to a movable electric input device of an oil press. Belongs to the technical field of high-voltage pulse metal sheet forming equipment. The problem that due to the fact that an electric input terminal of an existing oil press cannot be moved, a heavy input electric device is difficult to adjust frequently is mainly solved. The device is mainly characterized by comprising at least two movable guide rails arranged at the side part of the oil press in the vertical direction, insulating fixed rods arranged on the two adjacent movable guide rails, and an electric input device, and the electric input device is fixedly arranged on the insulating fixed rod and can move up and down on the movable guide rail along with the insulating fixed rod. The utility model has the characteristic of adapting to external power supplies of moulds with different heights, and is mainly used for electrically connecting the oil press with an external high-voltage power supply.

Description

Technical Field

[0001] The utility model belongs to the technical field of high - voltage pulse metal sheet forming equipment, and particularly relates to a movable electric input device for a hydraulic press. Background Art

[0002] The utility model is applicable to the molds that need an external power supply during the processing of parts, especially the processing scenarios with an external high - voltage power supply. In addition, there are also processing scenarios where the height of the input power supply device needs to be frequently adjusted due to the different heights of the molds for processing parts.

[0003] At the present stage, the industrial technology has higher and higher requirements for the shaping of materials. For example, for the metal casings of laptops, mobile phones, etc., due to their relatively thin thickness, it is difficult to eliminate the shape deformation caused by stress during the shaping process. Using electromagnetic forming technology can effectively achieve a high forming degree of thin plates under a single high - voltage magnetic force shaping. This kind of equipment requires a high - voltage of dozens of KV and an instantaneous current of dozens to hundreds of KA to be applied to the mold.

[0004] Since the pulse forming equipment is a new type of equipment in China, especially when it is necessary to introduce instantaneous high voltage and large current to the mold, it is required that the power - on circuit must be as short as possible (to reduce the inductance and distributed resistance in the circuit), and at the same time, good insulation and creepage distance for the press need to be considered (to prevent these high - voltage pulse currents and voltages from damaging the internal power supply of the press).

[0005] In addition, due to different workpieces, the height and width of the molds are also very different. In order to adapt to the production environment of frequently changing molds, this electric input terminal needs a certain degree of mobility.

[0006] Finally, since the input electric device is relatively heavy, it is convenient for the movement of the device and at the same time convenient for adjusting the position of the external input cable. Summary of the Utility Model

[0007] The utility model provides a movable electric input device for a hydraulic press in view of the above - mentioned deficiencies.

[0008] The technical solution adopted by the utility model to solve its technical problems is: a movable electric input device for a hydraulic press, characterized in that: it is composed of at least two movable guide rails arranged vertically on the side of the hydraulic press, an insulating fixed rod arranged on adjacent two movable guide rails, and an electric input device; the electric input device is fixedly installed on the insulating fixed rod and can move up and down along the movable guide rails with the insulating fixed rod.

[0009] In the technical solution of the utility model, the upper and lower ends of the movable guide rails are respectively installed and fixed on the upper and lower bases of the hydraulic press through fixed piles.

[0010] In the technical solution of the present utility model, there are two movable guide rails; the fixed piles are respectively installed at both ends of the same side of the upper and lower bases of the hydraulic press.

[0011] In the technical solution of the present utility model, there are two movable guide rails; the fixed piles are respectively installed at both ends of the two opposite sides of the upper and lower bases of the hydraulic press.

[0012] In the technical solution of the present utility model, the electric input device is composed of an insulating mounting base plate, a positive and a negative bus bar mounted on the insulating mounting base plate, and positive and negative electrode plates.

[0013] In the technical solution of the present utility model, the positive and negative bus bars have multiple concentric cables with parallel inputs.

[0014] In the technical solution of the present utility model, there are two insulating fixed rods; the upper and lower ends of the insulating mounting base plate are respectively installed and fixed on the insulating fixed rods.

[0015] In the technical solution of the present utility model, the positive and negative bus bars ensure full electrical contact of the concentric high-voltage cable by pressing the copper with brass, and at the same time firmly fix the bus bars on the insulating mounting base plate.

[0016] In the technical solution of the present utility model, the positive and negative bus bars are fixed on the insulating mounting base plate by pressing the copper with brass.

[0017] In the technical solution of the present utility model, a plurality of fixed card seats for installing insulating fixed rods are provided on the movable guide rails.

[0018] In the technical solution of the present utility model, an acrylic protective cover is installed outside the electric input device.

[0019] The benefit of the present utility model is that in addition to ensuring the effect of high-voltage isolation and insulation of the electric input, it also provides appropriate up and down movement performance, which is convenient for adapting to the external power supply of molds with different heights.

[0020] The present utility model has the characteristic of adapting to the external power supply of molds with different heights and is mainly used for the electrical connection between the hydraulic press and the external high-voltage power supply. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the present utility model.

[0022] Figure 2 is Figure 1 a side view of

[0023] Figure 3 is Figure 1 a partial enlarged view of , with the acrylic cover plate removed.

[0024] In the drawings: 1 - electrical input device; 2 - insulating fixing rod; 3 - multi-parallel input concentric cable; 4 - movable guide rail; 5 - fixing pile; 6 - hydraulic press; 7 - output positive and negative copper busbars; 8 - high-voltage pulsating die; 9 - positive and negative two busbars. Specific implementation manner

[0025] Next, the embodiments of the present utility model will be completely described in conjunction with the drawings of the embodiments of the present utility model.

[0026] As Figures 1 to 3 shown, an embodiment of the movable electrical input device of the hydraulic press of the present utility model is composed of four movable guide rails 4 vertically arranged on the side of the hydraulic press 6, an insulating fixing rod 2 arranged on two adjacent movable guide rails 4, and an electrical input device 1.

[0027] First, when manufacturing the hydraulic press 6, it is required that the manufacturer reserve fixing piles 5 for installing the moving device at both ends of the opposite sides of the upper and lower bases of the hydraulic press 6, which are made by the hydraulic press manufacturer according to the required dimensions during the production of the hydraulic press 6. It is required that the thickness of the fixing pile 5 meets the requirement that there is a sufficient high-voltage safety distance between the input end of the electrical input device 1 installed on the movable guide rail 4 through the insulating fixing rod 2 and the edge of the hydraulic press 6, and at the same time, it is required to have sufficient load-bearing capacity and not affect the stroke of the upper pressing table of the hydraulic press 6.

[0028] Secondly, between the two pairs of fixing piles 5 on the same side of the upper and lower bases of the hydraulic press 6, movable guide rails 4 with slide rails are installed. Multiple fixing seats for installing electrical input devices can be matched on the movable guide rails 4 to facilitate the fixing of the insulating fixing rod 2 when the electrical input device 1 moves up and down on the movable guide rails 4.

[0029] Considering the dozens of KV high voltage carried by the electrical input device 1, a sufficient safety distance must be ensured between the electrical input device 1 and the hydraulic press 6, generally an air gap of dozens to hundreds of mm. At the same time, a sufficient creepage distance must be ensured with the movable guide rail 4, generally hundreds of mm. Therefore, the connection between the electrical input device 1 and the movable guide rail 4 is fixed and connected by a fixing rod 2 made of insulating material. The insulating fixing rod 2 is a rod-shaped object. Considering creepage distance and safety, two insulating fixing rods 2 are sufficient to bear the load, and holes are provided on the insulating fixing rod 2 to facilitate the installation and fixing of electrical input devices 1 of different volumes.

[0030] The electrical input device 1 is composed of an insulating mounting base plate, positive and negative busbars 9 mounted on the insulating mounting base plate, positive and negative electrode plates, and an acrylic protective cover. The upper and lower ends of the insulating mounting base plate are respectively fixed on the upper and lower insulating fixing rods 2, and can move up and down along with the insulating fixing rods 2 on the movable guide rail 4. Considering the structural mode of multi-path parallel input of external high-voltage and high-current devices and single-path output to the mold, the positive and negative busbars 9 adopt multi-path parallel input concentric cables 3. The electrical input device 1 designs an insulating mounting base plate of sufficient size according to factors such as the number of multi-path parallel input concentric cables 3 (outer negative electrode, inner positive electrode, with high-voltage-resistant insulation isolation in the middle), cable size, etc., and firmly fixes the positive and negative busbars 9 for fixing the multi-path parallel input concentric cables 3 (a structure of pressing copper with brass, which can conduct instant high-voltage and high-current while pressing the communication cable to avoid the influence of electrodynamic force on the input device) on the insulating mounting base plate. The positive and negative electrode plates should maintain a sufficient installation clearance distance according to the high-voltage national standard regarding the high-voltage creepage distance.

[0031] At the same time, factors such as current sharing and line distributed inductance should be considered, and the specific structural dimensions of the positive and negative busbars 9 should be designed for a compact design.

[0032] The acrylic protective cover is installed outside the electrical input device 1. On the one hand, it prevents accidental short circuits and the discharge of high voltage. On the other hand, the operating state of the high-voltage positive and negative busbars when passing through instant high-voltage and high-current can be detected at any time through the transparent outer cover.

[0033] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Therefore, any modifications, equivalent replacements, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A mobile electric input device for a hydraulic press, characterized in that: The invention comprises at least two movable guide rails (4) arranged vertically on the side of an oil hydraulic machine (6), insulating fixing rods (2) arranged on two adjacent movable guide rails (4), and an electric input device (1); the electric input device (1) is fixedly mounted on the insulating fixing rods (2) and can move up and down on the movable guide rails (4) along with the insulating fixing rods (2).

2. The mobile electric input device for hydraulic press according to claim 1, characterized in that: The upper and lower ends of the movable guide rail (4) are respectively mounted and fixed on the upper and lower bases of the hydraulic press (6) via fixing piles (5).

3. The mobile electric input device for hydraulic press according to claim 2, characterized in that: There are two movable guide rails (4); the fixed piles (5) are respectively installed at the two ends of the same side of the upper and lower bases of the hydraulic press (6).

4. The mobile electric input device for hydraulic press according to claim 2, characterized in that: There are two movable guide rails (4); and the fixed piles (5) are respectively installed at two ends of two opposite sides of the upper and lower bases of the hydraulic press (6).

5. The mobile electric input device for a hydraulic press according to any one of claims 1 to 4, characterized in that: The electric input device (1) is composed of an insulating mounting base plate, positive and negative bus bars (9) mounted on the insulating mounting base plate, and positive and negative electrode plates.

6. The mobile electric input device for hydraulic press according to claim 5, characterized in that: The positive and negative busbars (9) have multiple parallel input concentric cables (3).

7. The mobile electric input device for hydraulic press according to claim 5, characterized in that: There are two insulating fixing rods (2); the upper and lower ends of the insulating mounting base plate are respectively mounted and fixed on the insulating fixing rods (2).

8. The mobile electric input device for hydraulic press according to claim 5, characterized in that: The brass of the positive and negative busbars (9) presses the copper tightly to ensure full electrical contact between the concentric high-voltage cables, while also firmly fixing the busbars on the insulating mounting base plate.

9. The mobile electric input device for a hydraulic press according to any one of claims 1 to 4 and 6 to 8, characterized in that: The movable guide rail (4) is provided with a plurality of fixing sockets for mounting the insulating fixing rods (2).

10. The mobile electric input device for a hydraulic press according to any one of claims 1 to 4 and 6 to 8, characterized in that: An acrylic protective cover is installed outside the electrical input device (1).

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