Method and apparatus for production of helical springs by spring winding

A technology of coil spring and coil spring, applied in the field of coil spring machine, can solve problems such as uneconomical, and achieve the effect of high measurement accuracy

Active Publication Date: 2014-03-19
WAFIOS AKTIENGES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This process is very uneconomical, especially in the case of long springs, since each spring consumes a relatively large length of wire and must be removed when the finished spring is found to be out of tolerance. throw away

Method used

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  • Method and apparatus for production of helical springs by spring winding
  • Method and apparatus for production of helical springs by spring winding
  • Method and apparatus for production of helical springs by spring winding

Examples

Experimental program
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Embodiment Construction

[0045] exist figure 1 The schematic diagram in shows the main elements of a CNC spring winding machine 100 based on a design known per se. The spring coiler 100 has a conveying device 110 which is equipped with conveying rollers 112 and which conveys a continuous wire section of wire 115 which comes from a wire supply and passes through a guide unit at a digitally controlled conveying rate The curve enters into the region of the shaping device 120 . With the help of digitally controlled tools, the wire is shaped in a forming device to form a helical spring. The tool comprises two winding pins 122 , 124 arranged offset at an angle of 90° and radially aligned with respect to the central axis 118 (position corresponding to the desired spring axis) and intended to determine the diameter of the helical spring. During the setting process, the position of the winding pin can be changed for the basic adjustment of the spring diameter along the line of motion shown in dashed lines an...

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Abstract

The method involves defining a target geometry of a helical spring by a numerically controlled (NC) control program, and measuring an actual position of a structural element of the spring relative to a reference element at a measuring time point. The actual position is compared with a target position of the structural element at the time point for determining actual position difference that represents difference between the actual position and the target position at the time point. A position of a pitch tool (130) of a shaping device (120) is controlled based on the position difference. Independent claims are also included for the following: (1) a computer numerical controlled spring winding machine comprising a feeding device for supplying a wire to a shaping device (2) a computer program product for executing a method for manufacturing a helical spring.

Description

technical field [0001] The invention relates to a method for producing helical springs by winding springs by means of a digitally controlled spring winding machine, and a spring winding machine suitable for carrying out said method. Background technique [0002] Helical springs are machine elements that are in great demand and of various designs in many fields of application. Coil springs (also known as coiled torsion springs) are usually made of spring wire and are in the form of tension springs or compression springs depending on the load placed on them during use. For example, compression springs, especially load-bearing springs, are in great demand in motor vehicle construction. In particular, the spring properties are influenced by sections with different pitches or different pitch profiles. For example, in the case of compression springs, it is common to have a central section of greater or lesser length comprising a constant pitch (constant section) adjacent to said...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21F35/00
CPCB21F3/02B21C51/00B21F35/00
Inventor V.卡尔考
Owner WAFIOS AKTIENGES
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