Substrate line drawing jig

The utility model discloses a base material line drawing jig which comprises a fixed block and a movable block which are attached to each other, the movable block has a locking function and is connected to the fixed block in a sliding mode in the X-axis direction, the thickness of the movable block is equal to that of a base material, and the fixed block is provided with a line drawing side wall perpendicular to the X-axis direction. The movable block is provided with an abutting side wall parallel to the line drawing side wall, so that the peripheral side wall of the base material can abut against the abutting side wall in parallel, and the paintbrush conducts line drawing on the end face of the base material along the line drawing side wall. The auxiliary line drawing device can accurately draw required auxiliary lines on a base material, and is simple in structure and convenient to use. 本实用新型公开一种基材画线治具，包括相贴合的固定块和活动块，所述活动块带锁定功能的沿X轴方向滑动连接在固定块上，所述活动块的厚度与基材的厚度相等，所述固定块具有一与X轴方向相垂直的画线侧壁，所述活动块具有一与画线侧壁相平行的抵靠侧壁，以使基材