Setting device and method for manufacturing of spring
A device pair, spring wire technology, applied in the direction of manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of difficulty in forming a spring with a large rotation ratio, high labor intensity for operators, and high technical level requirements, and avoids the technical level. The effect of relying on and stabilizing the size of each part of the spring and reducing labor intensity
Active Publication Date: 2015-07-15
SHENYANG AIRCRAFT CORP
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Problems solved by technology
The main problem of this method is that it is very difficult to wind and shape the large rotation ratio spring, and sometimes it is not formed at all, and it is completely dependent on the fitter operator to correct the shape
This method not only requires high technical level of the fitter operator, but also has high labor intensity and low efficiency for the operator. At the same time, the qualification rate of the spring is lower than 50%, or even 0.
Method used
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[0011] like Figure 1~3 As shown, the setting device for spring manufacturing includes a collet 4, a gasket 3, a mandrel 2 and a spring 1. The collet 4 is composed of a notched ring part 5 and a clamping part 6 matched therewith. The collet 4 and the core The shaft 2 is matched, the spring 1 is wound on the mandrel, the head end of the spring 1 is fixed by the convex part of the mandrel, the tail end of the spring 1 is fixed by the collet 4, and there is a gasket between the collet 4 and the spring 1 3.
[0012] The forming method of spring manufacturing is as follows: the spring is wound and shaped by the above-mentioned shaping device for spring manufacturing. First, the lathe operator uses a common lathe to wind the spring steel wire on the mandrel 2 to become spring 1. The head end of spring 1 It is fixed by the raised part of the mandrel 2, then put the gasket 3 on the tail end of the spring 1, put on the chuck 4 and tighten it, so that the tail end of the spring 1 is fi...
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The invention discloses a setting device and method for manufacturing of a spring. The setting device comprises a chuck, a spacer and a mandrel. The chuck is composed of an annular part and a bolt. A notch is formed in the annular part, the bolt matches with one side of the annular part along radial threads, the inner diameter of the annular part matches with the mandrel, a protrusion for fixing the radial direction and the axial direction of the spring is arranged on one side of the mandrel, the other side of the mandrel is movably connected with the chuck, and the spacer is arranged between the chuck and the mandrel. The setting method comprises winding and setting the spring mainly through the setting device for manufacturing of the spring; firstly, winding a spring steel wire on the mandrel through a general lathe; secondly, fixing the head end of the spring through the protrusion of the mandrel and fixing and clamping the tail end of the spring on the mandrel by using the chuck and the spacer; and thirdly, performing heat treatment on the whole formed by the spring, the mandrel, the spacer and the chuck. By means of the setting device and method, the labor intensity of operators is reduced, and the production efficiency and the yield are improved.
Description
technical field [0001] The invention relates to a manufacturing process of a spring, in particular to a forming method for manufacturing a spring with a large winding ratio. Background technique [0002] At present, there is no reasonable and effective method for winding and forming of springs with large winding ratio (winding ratio C ≥ 25), and the winding and forming method of springs with normal winding ratio (winding ratio C between 4 and 16) is still used, namely: Winding and forming of the spring—fitter-calibration spring—spring heat treatment. The main problem of this method is that the large rotation ratio spring is very difficult to form, and sometimes it is not formed at all, and it depends entirely on the fitter operator to correct the shape. This method not only requires a high technical level of the fitter operator, but also has a high labor intensity and low efficiency for the operator. At the same time, the pass rate of the spring is lower than 50%, or ev...
Claims
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IPC IPC(8): B21F3/04C21D9/02
Inventor 董喜强
Owner SHENYANG AIRCRAFT CORP