Cold-extruding lock clamp for unmanned aerial vehicle and preparation method of cold-extruding lock clamp

Abstract

The invention discloses a cold-extruding lock clamp for an unmanned aerial vehicle and a preparation method of the cold-extruding lock clamp. The cold-extruding lock clamp comprises two lock clamp pieces of which the cross sections are of a semicircular structure, the two lock clamp pieces can be folded to form an annular structure and are made from low-carbon alloy steel through cold-extruding forming, the periphery of each lock clamp piece is subjected to cold extruding to form an outer conical surface matched with an inner conical surface of a valve spring retainer, three convex circular arcs are arranged in the inner hole, fixedly assembled with a valve ejection rod, of each lock clamp piece at intervals, the upper end and the lower end of each convex circular arc are provided with annular grooves respectively, and a spacing band is arranged between every two adjacent convex circular arcs. The lock clamp pieces are subjected to cold-extruding forming and then subjected to burring treatment, a surface carburization layer and a core hardening layer which are obtained through the processes of carburization, quenching and temper heat treatment are integrally adopted, polishing is conducted after heat treatment, and then the finished product is obtained, wherein the core hardening layer is located under the surface carburization layer. The cold-extruding lock clamp for the unmanned aerial vehicle and the preparation method of the cold-extruding lock clamp have the advantages that by adopting the cold-extruding forming technology, the product is stable in quality, good in interchangeability and long in service life.

Description

technical field [0001] The invention relates to a component of an unmanned aerial vehicle, in particular to a cold extrusion lock clip for an unmanned aerial vehicle and a preparation method thereof. Background technique [0002] The valve lock clip is a part that needs to be used in pairs, and it is composed of two lock clip clips that can be combined to form a ring structure. At present, most of the valve lock clips sold in the market adopt the traditional cutting processing method. Since cutting processing can hardly guarantee the uniformity of size, it can only be produced in pairs during production, and interchangeability cannot be guaranteed. The precision of the valve lock clamp is very high, the production efficiency of machining is relatively low, the quality of the product is very unstable, and the waste of materials is serious, the scrap rate is high, and the production cost is high; and the demand for the valve lock clamp in the market is relatively large , ther...

AI Technical Summary

Problems solved by technology

At present, most of the valve lock clips sold in the market adopt the traditional cutting processing method. Since cutting processing can hardly guarantee the uniformity of size, it can only be produced in pairs during production, and interchangeability cannot be guaranteed.

The precision of the valve lock clamp is very high, the production efficiency of machining is relatively low, the quality of the product is very unstable, and the waste of materials is serious, the scrap rate is high, and the production cost is high; and the demand for the valve lock clamp in the market is relatively large , there is an urgent need for a processing method with higher production efficiency and more stable quality

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