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A device for heat treatment of springs

A compression spring and clamping technology, which is applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve problems that affect processing efficiency and product quality, long calibration time, spring deformation, etc., to reduce processing costs, improve processing efficiency, The effect of eliminating the correction process

Active Publication Date: 2017-10-10
JIANGXI CHANGHE AVIATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a single piece of spring is directly placed in a heat treatment furnace for heat treatment. After heat treatment, the spring is seriously deformed, and the follow-up auxiliary correction takes a long time and is difficult, which seriously affects the processing efficiency and product quality.

Method used

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  • A device for heat treatment of springs
  • A device for heat treatment of springs
  • A device for heat treatment of springs

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Embodiment Construction

[0017] The present invention will be described in further detail below.

[0018] refer to figure 2 , the schematic diagram of the structure of the device for the heat treatment of cylindrical helical compression springs in the clamped state according to the present invention, the device includes a screw 1, a nut 2 and an arc-shaped circular washer 3, the screw 1 has a hexagonal stop in its middle, and will need The heat-treated spring 4 is screwed in from both ends of the screw rod 1 along the groove, and then the arc-shaped circular washer 3 and the nut 2 are respectively screwed on from the outside, and the arc-shaped circular washer 3 is adjusted to ensure the accurate positioning of the end of the spring. Nut 2 is fixed.

[0019] When put into the heat treatment furnace, use thin iron wire to penetrate the two non-threaded holes of the nut 2 to realize the binding of the device, then hang it into the heat treatment furnace, and then heat treatment production can be carri...

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Abstract

The invention belongs to a tool design technology, is used for thermal treatment of springs and particularly relates to a device for thermal treatment of cylindrical helical compression springs. The main purpose of thermal treatment of the springs is to obtain favorable elastic properties and high fatigue properties to meet the favorable comprehensive properties of the springs under the action of impact, vibration or alternating stress. At present, a single spring is directly placed in a thermal treatment furnace to be thermally treated, the thermally treated spring deforms seriously, and follow-up auxiliary correction takes a long time and is difficult, so that the processing efficiency and the product quality are affected seriously. The invention provides the device which is quick in clamping and positioning, can perform thermal treatment for a plurality of cylindrical helical compression springs at the same time, controls spring deformation, increases the processing efficiency, reduces the processing cost and improves the product quality.

Description

technical field [0001] The invention belongs to tooling design technology and is used for heat treatment of springs, in particular to a device for heat treatment of cylindrical helical compression springs. Background technique [0002] The heat treatment of the spring is mainly to obtain good elastic performance and high fatigue performance, and to meet the good comprehensive performance of the spring under the action of impact, vibration or alternating stress. The thermal stress and tissue stress generated by the heating and cooling cycle of the parts during the heat treatment process will inevitably cause dimensional and volume changes, resulting in deformation of the parts. Heat treatment deformation is divided into two types: dimensional change (volume change) and shape deformity. Cylindrical helical compression springs (such as figure 1 ) The requirements for the main shape and structure include inner diameter, free height, pitch, straightness, verticality and consist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/02
Inventor 沈国喜林君巢昺轩熊曦耀李智勇王宝龙周晶晶
Owner JIANGXI CHANGHE AVIATION IND
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