METHOD AND DEVICE FOR CHECKING TRACK FOR PARALLELISM WITH LOG FRAME LENGTHWISE AXIS Russian patent published in 2014 - IPC B27B27/00 

FIELD: process engineering.

SUBSTANCE: invention relates to woodwork and can be used for checking the track for parallelism with log frame lengthwise axis. Proposed method comprises vertical transfer of log frame lengthwise axis direction set as tightly stretched string to rail level and measurement of difference of distances from obtained pint to one of the rails at different points over track length. Transfer of string projection on rail level is executed with the help of reference square and device composed of two plane-parallel supports, main support with bottom thrust for location over rail head inner surface and auxiliary support to make a metrological basis. Difference in distances from top thrust is measured by contact method with the help of indicating gage or trammel. Device for checking the track for parallelism with log frame lengthwise axis comprises two supports, reference square and level gage. Auxiliary horizontal support with adjusting screw and top thrust and main horizontal support with bottom thrust are composed of two plane-parallel bars. Horizontal supports are arranged across the track and set horizontally by level gage with the help of adjusting screw. Bottom thrust serves to locate the main support over rail hear working surface. Top thrust at auxiliary support serves to secured the metre thereat.

EFFECT: decreased labour input, accelerated process, higher reliability and precision.

2 cl, 2 dwg