Multi-strand reed numerical control machine steel wire tension detection and rotary rope-twisting device

Abstract

The invention relates to a reed numerically-controlled machine tool steel wire tensity examination and the revolving twist. Rope installment, which belongs to the area of many reed numerically-controlled machine tool process technology. This invention installment mainly includes the reducing decelerate the electrical machinery, the transmission gear gudgeon, the steel wire tensity sensor system, the steel wire guide mechanism and so on. Its characteristic is as follows: the servo decelerates electrical machinery is one or two, the transmission gear including the drive gear and the driven gear is one pair or two pairs, and the gudgeon is one decked or double-decked. Because this invention installment s simply to be controlled, it raises the steel wire introduction's efficiency and many reed production's efficiency, reduces the labor intensity, and avoids the steel wire having the plastic deformation. Besides it raises many reed product manufacture qualified rate and the service life, and can survey the steel wire's actual tensity, thus it guaranteed each steel wire's tensity uniformly and so on. Therefore this invention may widely used in many reed processing profession, many reed which is produced by this invention can be widely applied in the frequency reciprocating motion equipment of the high sky in the automobile, aviation, machinery department and so on.

Description

technical field [0001] The invention belongs to the technical field of multi-strand spring numerical control machine tool processing, and in particular relates to a steel wire tension detection and rotating cable twisting device of a numerical control multi-strand spring processing machine tool. Background technique [0002] Multi-strand springs are widely used in mechanical equipment with high-frequency reciprocating motion, and their service life is 3 to 5 times that of traditional single-strand coil springs of the same specification. The multi-strand spring manufacturing technology is a technology that is prohibited from being transferred abroad, and is a key topic of domestic research. The multi-strand spring processing machine independently developed by the state-owned Wangjiang Machinery Manufacturing Factory in the 1990s was transformed from an ordinary lathe. Multi-strand springs with different pitches and different cable pitches are adjusted by manual hanging wheels...

AI Technical Summary

Problems solved by technology

[0003] The main disadvantages of this device are: the steel wire rotary twisting device not only complicates the introduction process of the steel wire before processing, but also makes the steel wire form multiple twists and turns from the steel wire box to the cluster. , the steel wire cannot rotate synchronously with it under the action of multiple friction forces, resulting in a large friction torque, which leads to a large torsional deformation of the steel wire, and some even plastic deformation, resulting in the torsional strength and resistance of the steel wire. The tensile strength is reduced, which seriously affects the manufacturing quality of multi-strand spring products and reduces the service life of multi-strand spring products

The main deficiencies of its steel wire tension controller are: (1) The steel wire is not only crushed and deformed under the tension of the tension controller, but also the detected tension has both the tension of the steel wire and the gravity of the steel wire box and the steel wire box frame on the axis of the steel wire. Component force in direction, not actual wire tension

(2) The direction of the detected tension is not in the same direction as the steel wire axis, but has a certain angle with the steel wire, resulting in inaccurate detection

Therefore, the steel wire tension detected by the steel wire tension detection device of the existing multi-strand spring CNC processing machine tool is too different from the actual steel wire tension, and the tension of each strand of steel wire is different, which leads to the production of multi-strand springs. The internal tension cannot be guaranteed to be consistent at all. Therefore, the wound multi-strand coil springs often have inconsistent tension. Even if the design accuracy is reduced, the reject rate is as high as 80%.

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