A stamping system of electronic fuel injection pump

Abstract

The invention relates to a stamping system of an electric fuel injection fuel pump, which includes a feeding vibration plate, a first conveying mechanism, a second conveying mechanism, a detection mechanism, and a stamping mechanism. The detection mechanism is composed of a guiding test cylinder, a bottom movable plate, and a controller The stamping mechanism is composed of a stamping machine and a guiding stamping mechanism arranged at the bottom of the stamping machine. The guiding stamping mechanism is composed of a movable sleeve, a connecting column, and a guiding column. Guide grooves are evenly opened on the side of the connecting column. The inner side of the movable sleeve is provided with a guide protrusion matching the guide groove, and a threaded strip is fixedly connected to the guide column. The threaded strip provided on the guide column can effectively ensure the stability of the guide stamping mechanism when it is pressed, and can effectively To ensure that the spring to be pressed is in place, the overall system realizes the automatic operation of spring pressing of the EFI fuel pump from feeding, detection to pressing and forming, which improves the pressing efficiency and facilitates the control of the pressing force of the spring, ensuring The spring is pressed into place.

Description

technical field [0001] The invention relates to a stamping system of an electric fuel injection fuel pump, which belongs to the field of fuel pump processing. Background technique [0002] The EFI fuel pump is one of the basic components of the EFI vehicle fuel injection system. Its function is to suck the fuel out of the fuel tank, pressurize it and deliver it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure. When the rotor disk rotates, the rollers are pressed outward by the centrifugal force, like a rotating oil seal, the rotor rotates, the pump works, sucks fuel from the oil inlet, and presses the fuel into the fuel system from the oil outlet, when the oil pump is turned off, The check valve at the oil outlet is closed to prevent fuel from flowing back into the fuel tank through the fuel pump. The fuel pipe pressure maintained by the check valve is called "residual pressure". The maximum pumping pressure of the ...

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Problems solved by technology

[0003] At present, during the processing of EFI fuel pumps, there are the following problems in the press-fitting of springs. First, most of the spring press-fitting placement and calibration still need to be done manually, which poses a risk of injury, and at the same time results in low press-fitting efficiency. ;Secondly, the reliability of the spring is not tested during the spring press-fitting process, which may easily cause the service life of the fuel pump after the press-fitting is not up to standard, and the spring press-fitting cannot be well controlled during the press-fitting process

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