Music bell vibrating plate machining technology and special tool

Abstract

Disclosed is a music bell vibrating plate machining technology and a special tool. The music bell vibrating plate machining technology comprises the following steps that traditional polyester grinding wheel cutting machining is replaced with special tool combined milling cutters, firstly, cutting machining is conducted on a vibrating plate blank, then heat treatment is conducted on the vibrating plate blank, traditional machining procedures of a vibrating plate is changed radically, and the difficult problem that after plate cutting, the heat treatment is conducted, and all voice keys are easy to deform in the heat treatment process is solved. According to the music bell vibrating plate machining technology, by adopting a technology method that the double-plate integrated vibrating plate blank is punched by a punching machine and machined, cutting machining is conducted on the double-plate integrated vibrating plate blank by adopting the combined milling cutters, all the voice keys and chamfering areas are machined, it is ensured that the width of a cutting seam is 0.25 millimeter, the precision of the center distances of all the voice keys reaches 0.9+-0.005 millimeter, the rigidity of the vibrating plate is always kept 54+-1 degrees, each set of combined milling cutter can machine and produce 2-3 ten thousand vibrating plates, frequent replacement of tools is reduced, the work efficiency is improved, the precision of products and the stability of quality are ensured, voice of the vibrating plate is soft, pleasant to the ear and standard, and the quality and productivity of music bells are improved greatly.

Description

technical field [0001] The invention relates to a processing method and a special cutter for a vibrating piece, in particular to a processing technique for a musical bell vibrating piece and a special cutter. Background technique [0002] The existing traditional vibrating piece (sound piece, soundboard) is made by heat-treating the original metal piece first, and then cutting it with a polyester grinding wheel, but this traditional processing method has shortcomings. [0003] 1. Since a lot of heat is generated when sectioning with a polyester grinding wheel, heat treatment before sectioning with a polyester grinding wheel will reduce the hardness and make the internal lattice structure of the metal material thicker, which will change the original sound of the metal to a certain extent, and will eventually As a result, the sound of the sound film becomes hard, the echo is short, and the sound is not soft and loud enough; [0004] 2. The seam width between the sound needles...

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Problems solved by technology

[0003] 1. Since a lot of heat is generated when sectioning with a polyester grinding wheel, heat treatment before sectioning with a polyester grinding wheel will reduce the hardness and make the internal lattice structure of the metal material thicker, which will change the original sound of the metal to a certain extent, and will eventually As a result, the sound of the sound film becomes hard, the echo is short, and the sound is not soft and loud enough;

[0004] 2. The seam width between the sound needles on the vibrating plate is only 0.25 mm. In order to ensure the meshing with the small teeth on the sound tube, the center distance between the sound keys (sound needles) must be guaranteed to be 0.9±0.005 mm. Therefore, the traditional processing method uses The thickness of the polyester grinding wheel can only be 0.25mm. Heat treatment first and then sectioning process increases the difficulty of sectioning. However, the rigidity of the grinding wheel is poor, and the guide plates on both sides are needed to guide the processing during processing. Therefore, in the high-speed sectioning process Among them, the wear caused by the friction between the polyester grinding wheel and the guide plate is relatively large, and the polyester grinding wheel is therefore frequently replaced. Generally, after processing 400-500 pieces of vibrating plates, it must be replaced. Frequent replacement will also make it difficult for the key center distance to reach 0.9± 0.005 mm high precision, and the straightness difference of the cutting seam is an irregular curve

[0005] Patent Application No. 200410039949.9 "The Method for Making Sound Pieces of Octave" discloses a method for making sound pieces, but it still adopts the steps of first heat-treating the sound piece metal sheets, and then making the sound pieces through the steps of forming the pins. Traditional Craft of Pieces

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