Producing method for H-shape spanner

Abstract

A technology for manufacturing H-shaped spanner includes such steps as forging to obtain the raw blank of H-shape spanner with H-shaped handle, forging again to obtain the fine blank, and grinding. Its advantages are simple process and precise sizes.

Description

technical field [0001] The invention relates to a manufacturing method of a wrench used in tools for fastening, connecting, dismounting, or clamping in the field of hand tools, in particular to a manufacturing method of an I-shaped wrench capable of simply manufacturing an I-shaped grip. It uses the first and second forging methods at different temperatures, combined with the detailed processing steps, which can make the production process of the work wrench easier and the tolerance can be smaller, so that it is more in line with the needs of the industry, and The thickness of the work wrench can be controlled more easily and more accurately, and has industrial utilization value, and then becomes a quite practical and progressive new design, which is suitable for wide application in the industry. Background technique [0002] Please refer to FIG. 1 , which is a schematic structural view of a conventionally used I-shaped wrench. The structure of the current general I-shaped ...

AI Technical Summary

Problems solved by technology

[0004] 1. Using the rolling method to form the gripping part 11 of the shape is not only difficult to master because of the force, but also more likely to cause deformation that is difficult to control and has a large tolerance

[0005] 2. The I-shaped grip part 11 of the so-called I-shaped wrench is not only set as a grip part with the same thickness, but also may have a structural design with a gradually increasing thickness, as shown in Figure 3, so the above-mentioned force and The amount of deformation is more difficult to control

[0006] 3. The sur...

Images