Auxiliary assembly tool for correcting perpendicularity and deflection of lower core of main body core

Abstract

The invention discloses an auxiliary assembly tool for correcting the perpendicularity and deflection of a lower core of a main body core. The auxiliary assembly tool comprises a portal frame, two positioning inclined seats which are arranged in an inward bending mode are arranged on the two sides of the bottom of the portal frame, positioning inclined faces which are arranged in an inward inclining mode are arranged on the inner sides of the positioning inclined seats, wear-resisting blocks are arranged at the two ends of each positioning inclined face, the top of the portal frame is provided with a detection needle, and one end of the detection needle is provided with a detection end face. The invention relates to the auxiliary assembly tool for correcting the perpendicularity and deflection of the lower core of the main body core, and belongs to the technical field of engine sand core assembly. Whether the main body core is accurately mounted or not can be quickly detected, the core assembly quality can be better guaranteed, operation is simple and convenient, high skill requirements are not needed, the requirements on the ability and experience of an operator are low, the main body core is convenient and fast to correct, and the core assembling efficiency is greatly improved.

Description

technical field [0001] The invention relates to engine sand core assembly technology, more specifically, it relates to an auxiliary assembly tool for correcting the verticality and deflection of the main core and lower core. Background technique [0002] In the process of body core assembly, assembling the main body core is a very important step. The quality of the main body core assembly directly affects the shape quality of the casting. When assembling the main core, because the overhang of the main core is too high, only the two cylinder holes at the bottom can be positioned, so it is not easy to install the main core during assembly. Cause a certain deflection with the lower outside. Since the six main body cores are assembled and tightened by stringing the core assembly screws, the assembly error of a single main body core will accumulate to the assembly of all main body cores, so it is necessary to ensure the assembly quality when assembling each main body core, and e...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the existing technical solutions are: (1) Most of the existing methods rely on visual inspection to roughly judge whether the assembly is in place, there is no standard assembly specification, and there is no quality assurance. For the main core with higher overhang and larger body , the greater the error caused by visual inspection, and requires higher ability and experience requirements for assemblers; (2) Part of the main body core assembly also adopts the method of plumb line alignment, but the benchmark of the plumb line is not the lower appearance If the position of the lower shape is not flat enough, for example, the lower shape is placed on a slope with a slight slope, these errors will be transferred to the assembly of the main core; (3) the plumb line alignment method cannot Adjusting the rotation deviation of the main body core can only correct the deviation of verticality; (4) The plumb line alignment method is only applicable to the case where the main body core head surface is long. If the core head surface is relatively short, there is no way to enlarge the subtle deviation. It is troublesome to observe; (5) Various methods have relatively high requirements for operation, and relatively high requirements for the operator's skills, and must be well trained to operate

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