Device and method for automatic high-efficiency precision laser processing of oil jets
An automatic processing and injection hole technology, applied in auxiliary devices, laser welding equipment, metal processing equipment, etc., can solve the problems of reducing processing efficiency, rough surface, recasting layer, etc., and achieve high processing efficiency and automation, no Reasonable effect of cutting and action force and structure setting
Active Publication Date: 2014-08-13
孙树峰
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Problems solved by technology
However, the EDM method removes material through the principle of electric spark ablation, and the processed hole wall is composed of overlapping micro-etch pits, so there are defects such as rough surface, recast layer, heat-affected zone, micro-cracks, and fast electrode wear.
In order to improve the surface quality of the fine oil injection holes, it is necessary to reduce the energy of the pulse electric spark and the processing feed rate, or to adopt the subsequent finishing process (mainly abrasive flow finishing), which not only reduces the processing efficiency, but also increases production. cost
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[0027] see figure 1 , figure 2 , image 3 and Figure 4 , a high-efficiency and precise automatic laser processing device for fuel injection holes disclosed by the present invention includes a rotary positioning device and a linear movement positioning device. The rotary positioning device includes a pressure plate 1, a stage 2, a bearing 3, and a first stepping motor 4 and the first coupling 5, the pressure plate 1 is cylindrical, the pressure plate 1 is made of magnetic material, the pressure plate 1 is sleeved on the upper end surface of the stage 2, and the lower end of the stage 2 passes through the first coupling The shaft device 5 is connected and fixed with the main shaft of the first stepping motor 4; the linear moving device includes a linear moving table 6, a leading screw 7, a nut 8, a guide rail 9, a support seat 10, a second coupling 11 and a second step Into the motor 12, the middle part of the upper end of the linear moving table 6 is provided with a bearin...
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The invention discloses a device for automatic high-efficiency precision laser processing of oil jets. The device comprises a rotating positioning device and a straight-line moving positioning device; the rotating positioning device comprises a pressing plate, an object stage, a bearing, a first step motor and a first coupling, wherein the pressing plate is cylindrical and made of a magnetic material, the pressing plate sleeves the upper end face of the object stage and the lower end of the object stage is connected and fixed with the main shaft of the first step motor by virtue of the first coupling; the straight-line moving positioning device comprises a straight-line moving platform, a lead screw, a nut, guide rails, a supporting seat, a second coupling and a second step motor, wherein two cylindrical holes and a lead screw hole are formed in the nut, one guide rail penetrates through each cylindrical hole, the lead screw penetrates through the lead screw hole, the second step motor is arranged at one end of the lead screw, and the main shaft of the second step motor is connected and fixed with the lead screw by virtue of the second coupling. The device for automatic high-efficiency precision laser processing of the oil jets is high in processing efficiency and automation degree, almost free of cutting and acting forces, and low in production cost.
Description
technical field [0001] The invention relates to the technical field of micro-hole laser processing of auto parts, in particular to a high-efficiency and precise laser automatic processing device and method for fuel injection holes. Background technique [0002] The fuel injector is the last link where the fuel enters the combustion chamber, and is also a key actuator of the fuel injection system of the automobile engine. It is a precision device that requires high machining accuracy. The fuel injection plate is one of the key parts of the fuel injector. The fuel injection hole is an important structural feature of the fuel injection plate. The structural characteristics, microscopic geometry and processing quality of the fuel injection hole (diameter, length, taper, shape , surface roughness, orifice edge, etc.) together determine the fuel flow, injection form and atomization effect of the engine, which in turn determines the performance of the engine such as noise, emission...
Claims
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Login to View More IPC IPC(8): B23K26/382
CPCB23K26/0823B23K26/083B23K37/0435
Inventor 孙树峰王萍萍章钦栋殷安臣
Owner 孙树峰