Inclined-hole drilling assisting device

The utility model discloses an inclined-hole drilling assisting device. The inclined-hole drilling assisting device comprises a base. A set of stand blocks are arranged on the base. An installation plate used for containing a workpiece is arranged between the two stand blocks and provided with array-distribution installation holes, and fixing keys used for fixing the workpiece are arranged in the installation holes. Rotating shafts arranged in the stand blocks and used for achieving rotary connection of the installation plate are arranged on the two sides of the installation plate. An auxiliary shaft extending to the outer side of each stand block is arranged at one end of the corresponding rotating shaft. A pointer is arranged at the lateral portion of each auxiliary shaft. A dividing ruler used in cooperation with each pointer is fixed to the outer side of each stand block. An arc-shaped groove is formed in the bottom of each dividing ruler. Each auxiliary shaft penetrates through the corresponding arc-shaped groove. A lifting block is in sliding connection to the interior of each stand block. A locking bolt is arranged in each lifting block. The two locking bolts are in outer-thread connection with a drilling assisting plate. Assisting holes distributed at intervals are formed in the drilling assisting plate. The drilling assisting plate is arranged above the installation plate. By means of the inclined-hole drilling assisting device, the use rigidity of a drill bit can be improved through the drilling assisting plate, the drilling angles can be confirmed through the dividing rulers, and inclined angles at various angles can be easily machined.