A sand core support device for improving the quality of large main oil channel casting holes

Abstract

The invention provides a sand core supporting device for improving the quality of a cast hole of a large main oil way and belongs to the field of casting quality control. The sand core supporting device comprises a fastening ring, a left core support, a right core support and a lower core support. A broken notch is formed in the fastening ring, and each of the positive left side, the positive right side and the positive lower side of the fastening ring is provided with a threaded hole. Threaded pillars are arranged at the front ends of the left core support, the right core support and the lower core support correspondingly. The threaded pillars are matched with the threaded holes in the fastening ring. The rear ends of the left core support, the right core support and the lower core support are further provided with supporting plates, and the supporting plates are connected with the threaded pillars correspondingly. The threaded pillars on the left core support, the right core support and the lower core support are connected to the threaded holes of the fastening ring correspondingly. The sand core supporting device has a fine adjustment function and is simple in structure and flexible in operation, the assembling precision and the positioning precision of a sand core can be improved, and the quality of castings is improved.

Description

technical field [0001] The invention relates to the field of casting quality control, in particular to a sand core support device for improving the casting hole quality of a large main oil channel. Background technique [0002] Now in order to get enough power, the engine is getting bigger and bigger, and as the size of the engine becomes bigger, some parts are also getting bigger, and the main oil passage of the engine is also getting larger. Now the length of the main oil passage of many large engines It is several meters long and has a diameter of more than 100mm. In the casting process, in order to obtain a larger main oil passage, the sand core of the main oil passage is also becoming longer and larger, but because the sand core of the main oil passage is too long and too large, Self-gravity will cause deformation of the sand core in the main oil channel, and the assembly of the hoisting sand core will easily cause problems such as large assembly accuracy errors, which ...

AI Technical Summary

Problems solved by technology

[0002] Now in order to get enough power, the engine is getting bigger and bigger, and as the size of the engine becomes bigger, some parts are also getting bigger, and the main oil passage of the engine is also getting larger. Now the length of the main oil passage of many large engines It is several meters long and has a diameter of more than 100mm. In the casting process, in order to obtain a larger main oil passage, the sand core of the main oil passage is also becoming longer and larger, but because the sand core of the main oil passage is too long and too large, Self-gravity will cause deformation of the sand core in the main oil channel, and it is easy to cause problems such as large assembly accuracy errors during the assembly of the hoisting sand core, which will lead to the scrapping of castings

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