Bevelling apparatus for producing screws and the like

Abstract

A bevelling apparatus, for manufacturing screws and the like, includes a fixed supporting structure, which includes a first motor unit (3) and a second motor unit (4) which actuates a pliers unit adapted to lock an item to be machined and associated with a movable supporting structure. The first motor unit is constituted by a pair of linear motors having rotors (6, 7) associated with a carriage (8) which actuates the pliers unit. The second motor unit has a pair of linear motors having rotors associated with the movable supporting structure so as to actuate the axial movement of the movable supporting structure with respect to the fixed supporting structure in order to define at least two operating positions of the pliers unit: a position for picking up and unloading the item to be machined, in which the pliers unit is at a certain distance from a machining head of a machine tool, and a position for machining the item, in which the pliers unit is located at the machining head of the machine tool.

Description

technical field [0001] The invention relates to a chamfering device for the production of screws and similar parts. Background technique [0002] A chamfering machine is a device that processes the ends of components such as screws, bolts and other specialized components by machining chips. [0003] The chamfering unit can be associated with a rolling unit which is inserted into a so-called bolt making machine, such as a pressing, chamfering and rolling machine, or can also be provided as a separate machine. [0004] The operating cycle of the chamfering machine provides the feed of the part through inclined guides, or in the case of headless parts through the tube, so that the part is inserted between the two locking jaws, one at a time. [0005] When the part is inserted, the jaws are locked and the part is pushed onto the rotating mandrel by lowering the jaws or rarely raising the mandrel. [0006] Once machining is complete, the components are disassembled. [0007] I...

AI Technical Summary

Problems solved by technology

[0007] In the traditional type of chamfering machine, all the movement is done by the rotating motor, reduction unit, cam, lever, bearing, etc., and this leads to the common defect of complex mechanical structure

[0008] In conventional beveling machines, adjustments are laborious and changing operating parameters such as the rate of descent or ascension of the head and the locking force of the caliper is very complicated

[0009] Furthermore, conventional machine tools are faced with play due to wear of the locking mechanism and general wear of the components, having to perform frequent and laborious maintenance operations

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