MANUAL APPARATUS FOR MARKING Russian patent published in 2002 - IPC

FIELD: manual apparatuses for marking and stamping parts, blanks and assemblies. SUBSTANCE: apparatus includes housing in the form of supporting plate rigidly secured to marked part by means of eccentric clamp mounted in brackets of supporting plate at side of marked part and engaged with changeable thrust bearing arranged in guides of brackets. Holder with punches is stationary mounted in window of supporting plate in front of changeable thrust bearing. Knocking roller is in the form of bandage on outer lateral surface of driven crown wheel of planetary gearing being drive unit for moving knocking roller. Above mentioned crown wheel at one side is mounted in bearing assembly on stationary crown wheel of the same planetary gearing and at other side - in bearing assembly secured to lateral wall of body of drive unit for moving knocking roller. Stationary crown wheel is fixed on opposite lateral wall of body of drive unit in such a way that both lateral walls of body of said drive unit are rigidly joined one with another by means of casing and each wall is provided with supporting members in the form of runners arranged at inner side of body near lower edges of lateral walls and mounted in guides on respective lateral walls of supporting plate carrying toothed rack. The last engages with additional toothed rim on outer lateral surface of driven crown wheel. Front end and lateral walls of punch holder have outer supporting protrusions at their upper edge. Length of window of supporting plate for mounting holder with punches is no less than that of diagonal of portion of lateral wall under its supporting protrusion. Spring-loaded pins are arranged in seats of lower portion of rear end wall of window of supporting plate. End portions of said pins are introduced into cavity of window for forcing holder with punches ( if it is mounted) to front end wall of window. Outer fixing dent is provided in rear end wall of punch holder lower than outer supporting protrusions on its lateral walls. Upon mounting holder with punches said dent engages with turning of rear end wall of window of supporting plate and it is closely adjoined with upper wall of said turning. Front and rear end walls of window of supporting plate have (each) one fixed abutment in the form of screw in order to provide mounting of holder with punches along lengthwise axis of window. Flat end of said screws are protruded out of supporting plate at least by admissible wear value along height of marking symbols on working ends of punches. Said flat ends are arranged in the same plane as contact end surface of marking symbols and they serve as bearing surface of apparatus. Apparatus may have extensible gage with stop for end or edge of marked part and member for fixing position of gage. Apparatus allows to mark cylindrical parts, possibly in the form of hollow cylinders and flattened parts. EFFECT: enlarged dimension range of parts marked by means of the same marking apparatus, high quality of marking, operational reliability of slightly complicated apparatus. 5 cl, 6 dwg