Mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials

Abstract

The invention discloses a mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials. The mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials comprises a cutter bit (1) and a square cutter handle (2). A boss (4) is arranged on the cutter bit (1). A cutter blade groove (5) is formed in the upper surface of the cutter bit (1). A fixing screw hole (8) is formed in a groove bottom face (6). A receding hole groove (9) is formed in the intersection part of two connected groove walls (7). The mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials has the beneficial effects that the manufacturing cost is low; the machining range of a cutter is enlarged; the structure is reasonable and reliable; a cutter blade is replaced easily and rapidly; material consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical cutting tools, in particular to a machine-clip tool holder which overcomes stress concentration and saves materials. Background technique [0002] The cutting tool used in existing mechanical processing is composed of a knife rod and an alloy blade, and some are welded, that is, the blade is welded on the knife rod. Due to the high temperature during welding, the hardness of the blade decreases, which affects the service life of the tool, and when the blade is damaged, the knife rod It will also be replaced accordingly, which wastes materials and high cost of use; what have is that the blade is installed on the front end of the knife bar, and the blade is fixed on the knife bar by a set screw. After the blade is worn, the blade can be replaced, but the price of the existing knife bar At 300-350 yuan, there are disadvantages such as high cost and single function of the tool holder. Contents of...

AI Technical Summary

Problems solved by technology

[0002] The cutting tool used in existing mechanical processing is composed of a knife rod and an alloy blade, and some are welded, that is, the blade is welded on the knife rod. Due to the high temperature during welding, the hardness of the blade decreases, which affects the service life of the tool, and when the blade is damaged, the knife rod It also needs to be replaced accordingly, which wastes materials and high cost of use; what have is that the blade is installed on the front end of the knife bar, and the blade is fixed on the knife bar by a set screw. After the blade is worn, the blade can be replaced, but the price of the existing knife bar At 300-350 yuan, there are disadvantages such as high cost and single function of the tool holder.

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