The use of a variety of winding springs around the spring will produce a variety of quality problems, in addition to useful mastery and fair mediation, there are many factors affecting the spring, such as: the accuracy of the material size, the materiality (soft and hard) of the symmetry The state of the material appearance, the accuracy of the dullness, especially the skill level of the staff, and so on. In the course of production, it is necessary to conduct frequent inspections, invent inventions in real time, and make corrections at any time.
Clamp the mandrel with a hole on the lathe chuck, and press the top with a tip. Turn down the lathe and clip the material to be punched at the core rod. You can make it at a constant speed.
Control of the quality of the coil spring
The following is a list of common quality problems and cleaning methods for ordinary spring winding springs.
1 The diameter of the support ring is increased
This is important because the spiral angle of the support ring is smaller than the spiral angle of the useful circle, and the two phases are formed under the condition that the feed length is stable (equivalent) and the position of the coil spring is stable. The diameter of the adjacent coil will be as large as possible, and the diameter of the support ring with a small spiral angle will be larger than the diameter of the useful circle with a large spiral angle.
The measures to be handled: First, plan the special variable-diameter cam piece, which is similar to the essential method of the middle-circle-shaped spring, so that the diameter of the center ring is slightly larger. When the pitch plate pushes the pitch, the diameter of the spring support ring and the useful ring The two arrive at the same level; the second is to accept the pitch plate with the boss. When the spring is wound, the spring ring is hooked, and the spring with a large diameter and large winding ratio is properly matched.