Three balls bakelite handle generic jigs

Bakelite handles on three balls with the general processing methods if the drilling difficult to ensure quality.
        First, the structural characteristics
        ( 1 ) State bakelite handle the ball using a cone positioned to ensure that the rotary drill bit through the center line of the ball in the center.
        ( 2 ) the production of bakelite handle tapered hole positioning sleeve , so that the hole drilled in the ball , the aperture ensures the vertical centerline of the shank portion and the workpiece .
        ( 3 ) Ball bakelite handle (D) or the pellets (D) in the positioning hole of the positioning cap cone . Set up two goals to stay away from the center , then Ge = (DZ one D) / Zsina.
        When creating a drilling template , the distance A is equal to B-plane and plane .
        When drilling the hole so that the ball , it ensures that the workpiece bore rent shank vertical centerline .
        ( 4 ) when drilling the hole in the ball bakelite handle , the positioning pin into the hole drilling template , knee , ensures that the two second inner bore of the ball , the method in the same clamping plane
        ( 1 ) Bakelite handle the ball in the hole drilling d: when the big ball positioned on shelving B flat , the ball in the hole positioning positioning cone sleeve , bushing inside diameter of the spin of the mountain gland and compression artifacts , to drilling .
        ( 2 ) When the ball bakelite handle drilling bore d, after a small ball tapping ( thread size decided by the drawing ) , alignment pins screwed into the bakelite handle , bakelite handle the other end of the locating pin into the kidney-shaped diamond grind template hole a big ball resting on a plane positioning, positioning the ball in the hole positioning sleeve cone countries in bakelite handle, bakelite handle spin on the inner diameter d Z bushing gland and compression artifacts , to drilling .