A method and device for forming a slotted self-locking nut

Abstract

The invention provides a method for forming a slotted self-locking nut. The method comprises following steps: fixedly placing the slotted self-locking nut to a lower template such that punches correspond to locking flaps, enabling an upper template to move downwardly for pushing the punches to perform centripetal motion such that the punches are used for extruding the locking flaps and closing operation of the slotted self-locking nut is finished, enabling the upper template to move upwards such that the upper template and the punches are out of contact for moving out the punches and taking out the slotted self-locking nut. The method for forming the slotted self-locking nut provided by the invention is easily operated and capable of closing all the locking flaps of the slotted self-locking nut at the same time. The closing precision of the locking flaps is high and labor intensity is decreased. At the same time, the invention provides the device used for the method for forming the slotted self-locking nut.

Description

technical field [0001] The invention relates to the technical field of machine tool processing, in particular to a method for forming a slotted self-locking nut and a device used therefor. Background technique [0002] Slotted self-locking nuts are commonly used parts in the field of machine models. Usually, the slotted self-locking nuts are closed by squeezing and deforming the outer diameter of the locking flap, that is, the locking flap of the slotted self-locking nut Inwardly inclined to form a closing structure towards the central axis. [0003] figure 1 It is a structural schematic diagram of a slotted self-locking nut, see figure 1 As shown, the four locking petals 11 of the slotted self-locking nut 1 all need to be closed toward the central axis during the production process to form a closed structure. [0004] The existing slotted self-locking nut closing process usually uses a three-jaw chuck or hydraulic equipment to close the locking flap of the slotted self-l...

AI Technical Summary

Problems solved by technology

[0004] The existing slotted self-locking nut closing process usually uses a three-jaw chuck or hydraulic equipment to close the locking flap of the slotted self-locking nut by means of single-point extrusion closing or symmetrical double-point extrusion closing. In the processing process of this processing method, the slotted self-locking nut needs to be rotated to change the position of the locking flap to be processed, which is inconvenient to operate and labor-intensive, and the closing value of each locking flap of the processed product is Difficult to be uniform, product accuracy is poor

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