Inner diameter finishing machine tool of small-size connecting bend

A technology for connecting elbows and inner diameters, which is applied in the field of trumpet connecting elbow inner diameter trimming machine tools, which can solve the problems of inability to ensure the uniform inner diameter of "U"-shaped elbows, the influence of trumpet pitch, and the easy breakage of steel cables, achieving structural Simple, improved machining accuracy, uniform inner diameter

Inactive Publication Date: 2011-05-18
TIANJIN JINBAO MUSICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the inner diameter trimming method using steel cables, since the steel cables are easy to break, the steel cables are wasted, and the uniform inner diameter of the "U" bend cannot be guaranteed.
After the "U" bend with uneven inner diameter is installed on the trumpet, it will affect the pitch of the trumpet

Method used

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  • Inner diameter finishing machine tool of small-size connecting bend
  • Inner diameter finishing machine tool of small-size connecting bend
  • Inner diameter finishing machine tool of small-size connecting bend

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0021] A small connection elbow inner diameter trimming machine tool, such as Figure 1~6 As shown, the innovation of the present invention is: comprise workbench 11, electric control box (omit this part), propulsion cylinder 1, workpiece fixture and high-pressure air injection device, electric control box is installed on the right side of workbench, and propulsion cylinder is installed on the working On the left end of the upper surface of the stage, the workpiece fixture is installed on the right side of the propulsion cylinder, and the high-pressure air injection device is installed on the outside of the workpiece fixture.

[0022] (1) The workpiece fixture includes a lower mold 4, an upper mold 3...

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Abstract

The invention relates to a inner diameter finishing machine tool of a small-size connecting bend, comprising a workbench, an electric control cabinet, a propelling oil cylinder, a workpiece clamp and a high-pressure air injecting device, wherein the electric control cabinet is installed on the side surface of the workbench, the propelling oil cylinder is installed on one end of the upper surface of the workbench, the workpiece clamp is installed on the right side of the propelling oil cylinder, and the high-pressure air injecting device is installed on the outer side of the workpiece clamp. The inner diameter finishing machine tool has the advantages of simple structure, low cost, automatic accomplishment of a finishing process, high speed, good effect and high working efficiency; and the an air cylinder, the oil cylinder and other kinds of equipment are combined with the electric control cabinet so that the inner diameter finishing machine tool finishes the inner diameter of the small-size connecting bend by utilizing high-pressure air for blowing rolling balls.

Description

technical field [0001] The invention belongs to the field of musical instrument processing equipment, in particular to a machine tool for trimming the inner diameter of a small connection elbow. Background technique [0002] The trumpet is a high-pitched brass instrument with a high-pitched and loud sound, and is widely used in the performance of orchestras and jazz bands. The general structure of the trumpet is: including the mouthpiece, the horn body and the bell mouth, a group of buttons are arranged on the horn body, the horn body is composed of a series of straight tubes, and a "U" bend is passed between each straight tube (small connector) to connect. The common trumpet has several tuning modes such as B-flat, C-flat, E-flat and A-tune. The realization of various tuning modes depends on the length and inner diameter of the trumpet. Under the premise of a certain total length of the trumpet, its inner diameter is at Generally speaking, the inner diameter of the straig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D31/00B21D43/00
Inventor 李宗瑞
Owner TIANJIN JINBAO MUSICAL INSTR
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