SE7810926L - drill fixture - Google Patents

Abstract

Drilling jig for measuring and marking out with high precision a number of borehole positions for later drilling. The drilling jig contains a rectangular or square frame 2, 3 and arrangements 15, 22, 23 for controlling a marking tool or a drill, so-called dice, which arrangements can be adjusted relative to the frame 2, 3, and arrangements 28 for fixing a workpiece 1 in the frame 2, 3. The drill jig is characterised in that the insides 6 of said frame 2, 3 are designed and adapted to perform a high-precision measurement against them, and there are at least two rulers 12 situated between and at two opposite sides 2 of said frame 2, 3, arranged so that they can be fixed and moved along these frame sides 2 and with their longitudinal direction perpendicular to the longitudinal direction of the frame sides 2. Furthermore, the drill jig is characterised in that, at each ruler 12, there is at least one so-called die 15, 22, 23 with one or more surfaces 19, 20, 26, designed and adapted to perform a high-precision measurement against it, which is arranged so that it can move along the ruler 12 between said frame sides 2, and be fixed at the ruler 12. Therefore, with the help of the drill jig, one can measure out at least two borehole positions with high precision and keep them adjusted. The measurement is done, for example, with gauge blocks, which are placed during the measurement between the insides 6 of the frame sides 2, 3 and the surface or surfaces 19, 20, 26 of the dice 15, 22, 23 intended for this. <IMAGE>