Lock body in steel mortise lock cylinder and machining method thereof

Abstract

The invention provides a lock body in a steel mortise lock cylinder and a machining method thereof. The lock body is characterized in that the lock body is provided with a lamination fixing frame formed by a fixed head and fixed wedge plates at the two sides; a plurality of steel laminations formed through cold stamping and molding are vertically laminated in the axial direction of a lock cylinder through hole; fixed grooves at the two sides of the steel laminations are clamped on the fixed wedge plates of the lamination fixing frame; and the front ends of the fixed wedge plates are fixedly connected with a lock body fixing frame by rivets. The lock body and the machining method have the following beneficial effects: the lock bodies with various shapes and various structures in the steel mortise lock cylinder can be machined without cutting; and the lock body in the steel mortise lock cylinder is extremely secure, can not be broken apart, can be suitable for the fire doors needed by the modern high-rise buildings, is convenient, simple and fast to machine and can be suitable for industrial production.

Description

technical field [0001] The invention relates to a lock body of a steel mortise lock cylinder and a processing method thereof. Background technique [0002] The lock body in the current mortise lock cylinder is the most difficult part to process in the lockset. Because the pinholes of the lock body are thin and long, and its slenderness ratio is greater than 7, it belongs to deep hole processing; and the accuracy of the position of the holes The requirements are extremely high, and only materials with low hardness such as brass and aluminum can be cut, so most of them are made of brass. But brass is brittle, and the screw hole cross-section plate of the lock body is easily broken during use; in addition, the melting point of brass is low; it will be deformed once it encounters a fire, so it cannot be applied to the fire doors that modern high-rise buildings need. And if adopt steel mortise lock body then can overcome above-mentioned defect, but the hardness of steel material...

AI Technical Summary

Problems solved by technology

However, brass is brittle, and the cross-section plate of the screw hole of the lock body is easily broken during use; in addition, the melting point of brass is low; once it encounters a fire, it will be deformed, so it cannot be applied to the fire doors required by modern high-rise buildings.

And if adopt steel mortise lock body then can overcome above-mentioned defect, but the hardness of steel material is big, it is difficult to cut and process into the lock body of complex structure, so also do not have the lock body of steel mortise lock core in the prior art The product

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