Connection rod and production process and dedicated device for processing half-product of connection rod

Abstract

The present invention involves a connecting rod for furniture, its productive technology and the special device used for processing connecting rod half-finished product. The connecting rod includes thin rod and plastic-wrapping body, the top head surface of thin rod is equipped with flight and the screw-plug end of thin rod is processed with external screw thread, the plastic-wrapping body is wrapped on the outer surface of then thin rod wall, the thin rod wall which is wrapped with plastic-wrapping body is processed with cross hatch, the screw-plug end of thin rod is processed with multidiameter which consists of transition part and core rod, the diameter of multidiameter is reduced from outer to inner, the outer screw thread is processed on the outer wall on the core rod. Compared with the prior connecting rod, the connecting rod in the invention has small integral size and lower manufacturing cost; the production process of the invention is simplified, the efficient production is higher and the production cost is reduced; the special device of the invention uses non-cutting working, no produce waste is generated during the process, the flow production can be realized more easily and the processing efficiency is improved after the special device is used in cold heading machine.

Description

technical field [0001] The invention relates to a furniture disassembly and assembly part, in particular to a connecting rod for furniture, a production process for the connecting rod and a special device for processing semi-finished products of the connecting rod for furniture. Background technique [0002] Connecting rods are widely used in the assembly of furniture, and are generally used to connect several parts on the furniture, for example, they are often used to connect the panels and side panels of drawers. As shown in Figure 1, the existing connecting rod is composed of a core rod and a plastic-coated body. The upper end surface of the core rod is provided with a groove that matches the screwdriver head. Generally, it is a combined groove of a cross head and a straight head , a relief groove is formed on the neck of the core rod at the lower end of the groove, and an external thread is formed on the screw-in end of the core rod. A texture is formed on the wall of t...

AI Technical Summary

Problems solved by technology

The core rod of this kind of connecting rod is a continuous cylindrical surface, and the diameter of the screw-in end is the same as that of the mesh. The whole product has a large size, large material consumption, and high manufacturing cost; at the same time, the second step of the process is turning. Part of the material needs to be cut off, so the material waste is large and the cost is high, and because the workpiece is relatively small, it must be processed by an instrument lathe, and the production efficiency is not high

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