An accordion bass machine

Abstract

The invention discloses an accordion bass machine, which comprises a top sheet, a top sheet nail, a rolling thread, a standing stake and a top rod. A mounting hole I corresponding to the position of the top piece nail is machined, and there is an interference fit between the top piece nail and the mounting hole I; the rolling thread is machined with a mounting hole II corresponding to the position of the pile, between the pile and the mounting hole II For an interference fit. The invention changes the connection form of the main transmission parts of the bass machine from welding to riveting, which originally required a lot of manpower to adjust after manual welding. Adjustment, stable connection and easy disassembly and replacement, convenient and fast assembly, high precision, low maintenance cost, can greatly improve the product quality and production efficiency of bass machines, and have significant economic and social value.

Description

technical field

[0001] The invention relates to the technical field of accordion parts, in particular to an accordion bass machine. Background technique

[0002] The accordion is a free-reed air-sounding instrument, which relies on the airflow to excite the vibration of the reed to produce sound. It is a good ensemble and accompaniment instrument, and it is also a commonly used instrument in music teaching. The accordion bass machine is the core part of the accordion, and it is also the part with the most complex structure and the highest process precision requirements. The efficiency and quality of its manufacturing are directly related to the cost and quality of the accordion production. The accordion bass machine is connected by thousands of parts. In the prior art, the top piece and the top piece nail, the rolling thread and the stake and the ejector rod are mainly connected by welding. Due to welding deformation and small parts, it is difficult to locate Assembling wel...

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