Method for machining variable-section nozzle ring blade of turbocharger

Abstract

The invention discloses a method for machining a variable-section nozzle ring blade of a turbocharger. The method includes clamping a blade (1) on a rotary fixture; manufacturing a grinding wheel (2) according to the shape of the blade; acquiring the ratio of the feeding width to the feeding depth of the grinding wheel according to ground quantities of a blade rod (3) and a lower end surface (4) of the blade; enabling the grinding wheel to rotate under the control of a computer and obliquely feeding the grinding wheel according to a ratio angle relative to the blade; grinding and machining the blade rod and the lower end surface of the blade simultaneously and automatically measuring the blade rod and the lower end surface of the blade; and automatically withdrawing the grinding wheel after machining requirements are met until a workpiece is machined. The method has the advantages that the blade rod and the lower end surface of the variable-section nozzle ring blade which originally needs to be machined on a plurality of different machine tools in a plurality of working procedures can be simultaneously machined on a single machine tool in a single working procedure, accordingly, labor, materials and the machining time are saved, and the machining efficiency is improved; and the blade machining precision and the mechanical strength of the blade can be guaranteed, and the machining quality can be improved.

Description

technical field

[0001] The invention relates to a machining method, in particular to a machining method of a nozzle ring vane of a turbocharger. Background technique

[0002] As we all know, a turbocharger is a product used to boost the air intake of an internal combustion engine and improve the working efficiency of the internal combustion engine. It is driven by the exhaust gas discharged from the internal combustion engine. The blades on the compressor end of the turbocharger installed on the intake pipe of the internal combustion engine rotate to perform work to increase the intake pressure, thereby improving the working conditions of the internal combustion engine and increasing the power of the internal combustion engine. Angle of rotation, to change the size of the exhaust cross-section of the exhaust gas, thereby adjusting the exhaust pressure of the turbocharger, controlling the speed of the turbocharger, and then controlling the components of the intake boost pre...

Examples

Embodiment Construction

[0013] The method for processing the turbocharger variable cross-section nozzle ring blades of the present invention is: clamping and fixing the blade 1 (that is, the turbocharger variable cross-section nozzle ring blades) on the fixture of the power shaft of the machine tool, and according to the process It is required to perform a uniform rotating motion at a certain speed. According to the shape and size of the blade, the corresponding outer contour shape of the grinding wheel is produced, and the ratio of the feed width to the feed depth of the grinding wheel is obtained. According to the ratio of the feed width to the feed depth (Trigonometric function value) Calculate the feed angle and displacement of the grinding wheel 2, input the feed angle and displacement into the computer, and through computer control, the grinding wheel is rotated at a constant speed while relative to the blade to make the grinding wheel according to the feed angle (such as figure 1 As shown in α)...

technical field

[0001] The invention relates to a machining method, in particular to a machining method of a nozzle ring vane of a turbocharger. Background technique

[0002] As we all know, a turbocharger is a product used to boost the air intake of an internal combustion engine and improve the working efficiency of the internal combustion engine. It is driven by the exhaust gas discharged from the internal combustion engine. The blades on the compressor end of the turbocharger installed on the intake pipe of the internal combustion engine rotate to perform work to increase the intake pressure, thereby improving the working conditions of the internal combustion engine and increasing the power of the internal combustion engine. Angle of rotation, to change the size of the exhaust cross-section of the exhaust gas, thereby adjusting the exhaust pressure of the turbocharger, controlling the speed of the turbocharger, and then controlling the components of the intake boost pre...

Examples

Embodiment Construction

[0013] The method for processing the turbocharger variable cross-section nozzle ring blades of the present invention is: clamping and fixing the blade 1 (that is, the turbocharger variable cross-section nozzle ring blades) on the fixture of the power shaft of the machine tool, and according to the process It is required to perform a uniform rotating motion at a certain speed. According to the shape and size of the blade, the corresponding outer contour shape of the grinding wheel is produced, and the ratio of the feed width to the feed depth of the grinding wheel is obtained. According to the ratio of the feed width to the feed depth (Trigonometric function value) Calculate the feed angle and displacement of the grinding wheel 2, input the feed angle and displacement into the computer, and through computer control, the grinding wheel is rotated at a constant speed while relative to the blade to make the grinding wheel according to the feed angle (such as figure 1 As shown in α)...

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