Method for scribing integral cylinder block blanks of large diesel engines

A technology of integral cylinder and cylinder block, which is applied to the parts of boring machine/drilling machine, the measurement of positioning in boring machine/drilling machine, drilling/drilling equipment, etc. Avoid quality hazards and other problems, achieve the effects of avoiding safety and quality accidents, high marking accuracy, and easy operation

Active Publication Date: 2014-07-09
HUDONG HEAVY MACHINERY
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Problems solved by technology

[0005] The first type of scribing method has the advantage of high scribing accuracy, but also because the center of gravity of the cylinder block blank is too high in the second scribing upright position, there is a great safety hazard, and the end plate cannot bear the weight of the cylinder block. This leads to

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  • Method for scribing integral cylinder block blanks of large diesel engines
  • Method for scribing integral cylinder block blanks of large diesel engines
  • Method for scribing integral cylinder block blanks of large diesel engines

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention cannot be limited by this.

[0030] The key to solving the technical problem of the present invention is how to draw the centerlines of the cylinder liner holes and the grid holes and their reference end faces on the horizontal position of the cylinder block blank under the premise of ensuring the machining allowance. Location.

[0031] According to the present invention, a method for scribing lines for the integral cylinder block blank of a large diesel engine, the cylinder block blank has several groups of coaxial cylinder liner blank holes and gland blank holes, and is characterized in that: on the premise of ensuring the machining allowance Next, complete the three-dimensional space marking task in the form of two-dimensional marking, use the two marking positions of the cylinder block blank o...

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Abstract

The invention discloses a method for scribing integral cylinder block blanks of large diesel engines. A plurality of groups of coaxial cylinder liner blank holes and gland blank holes are formed in each cylinder block blank. The method is characterized in that three-dimensional space scribing tasks are completed in a two-dimensional scribing mode on the premise that machining allowance is guaranteed, and center lines of various cylinder liner holes and gland holes and position lines of reference end surfaces of the various cylinder liner holes and the gland holes can be scribed by the aid of two scribing positions of each cylinder block blank on a scribing platform, and meet dimensional requirements. The method is combined with an existing scribing technology, so that stereoscopic scribing operation can be implemented on each cylinder block at the two corresponding scribing positions by the aid of conventional scribing tools, effects of reducing the production cost and preventing safety and quality accidents can be realized, and the method has the advantages of simplicity and convenience in operation and high scribing precision, and is applicable to scribing operation on optional integral cylinder blocks and similar large castings.

Description

technical field [0001] The invention relates to a manufacturing process method for large diesel engine parts, in particular to a marking method for a large diesel engine integral cylinder block blank, and belongs to the technical field of diesel engine manufacturing. Background technique [0002] The cylinder block is an important main part of a diesel engine. It is equipped with a cylinder head, a cylinder liner and a cooling water channel for cooling the cylinder liner and cylinder head. It also cannot allow fuel to leak into the crankcase of the fuselage. The overall parts of the large diesel engine cylinder block are bulky and heavy, which brings great difficulties to the processing. The casting blank of the integral cylinder block of a large diesel engine generally needs to go through a scribing process before machining. The scribing method and the formed line shape and line quality have a significant impact on the quality, cycle and turnover of machining. [0003] se...

Claims

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Application Information

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IPC IPC(8): B23B49/00B25H7/04
CPCB23B49/00B25H7/04
Inventor 邵根生郭文波徐鸿杰王黎
Owner HUDONG HEAVY MACHINERY
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