Method for grinding crankshaft of diesel engine accurately

A diesel engine and crankshaft technology, which is applied in the field of diesel engine crankshaft processing, can solve problems such as exceeding the standard, low efficiency, and out-of-tolerance axial dimensions of the crankshaft

Inactive Publication Date: 2006-04-19
WEICHAI POWER CO LTD
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Problems solved by technology

The traditional process design uses a large number of general or special measuring tools based on the equipment status, and relies on the frequent measurement and trial cutting method of the process operator to ensure the technological requirements of the axial dimension of the crankshaft. The efficiency is low, and the axial dimension of the crankshaft is out of tolerance due to human factors. seriously affected
[0003] Diesel engine crankshafts are slender shafts, which are typical flexible parts. Due to the existence of crankshafts, the structural manufacturability is poor. The main performances are as follows: 1. When grinding the main shaft, th

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  • Method for grinding crankshaft of diesel engine accurately
  • Method for grinding crankshaft of diesel engine accurately

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Embodiment Construction

[0014] Such as figure 1 , figure 2 As shown, the precise grinding method of diesel engine crankshaft includes the following steps:

[0015] The first step of placing the workpiece: place the crankshaft 1 between the two tops 2 of the workbench of the grinding machine, and initially fix the workpiece on the workbench with a small clamping force;

[0016] The second step is to place the main shaft support step: at least one corresponding main shaft support 4 is set at a plurality of main shaft parts 3 of the crankshaft, and the main shaft support has a pressing force upward to the main shaft part and overcomes the gravity deformation of the crankshaft. The bracket also has a thrust applied to the grinding point of the grinding wheel 5 to overcome the grinding thrust of the grinding wheel to the crankshaft, and the pressing force and thrust of the main shaft bracket 4 are adjustable;

[0017] The third step of crankshaft pre-deformation step: at each crankshaft of the cranksha...

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Abstract

A technology for precisely grinding the crankshaft of diesel engine features that the mainshaft supporting frame can cancel out the gravitation of crankshaft and the push force of abrasive disc to prevent radial deformation and the crank supporter can prevent the axial deformation caused by two centers.

Description

technical field [0001] The invention relates to a processing method for a crankshaft of a diesel engine. Background technique [0002] Although the machining process of most diesel engine crankshafts has been continuously improved, traditional process equipment and methods have been used, and numerical control equipment is rarely used, and it has always hovered at the process level of ordinary general-purpose equipment and special machines. The traditional process design uses a large number of general or special measuring tools based on the equipment status, and relies on the frequent measurement and trial cutting method of the process operator to ensure the technological requirements of the axial dimension of the crankshaft. The efficiency is low, and the axial dimension of the crankshaft is out of tolerance due to human factors. The impact is serious. [0003] Diesel engine crankshafts are slender shafts, which are typical flexible parts. Due to the existence of crankshaf...

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Application Information

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IPC IPC(8): B24B5/42
Inventor 李玉森李玉青李志钢任祖传李华林
Owner WEICHAI POWER CO LTD
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