All kinds of material, shape, size, specification of the artifacts require drilling, tapping and other operations processing. Different artifacts shape each are not identical, the location of the hole processing is also different, so before processing, according to the work piece shape and the location of drilling hole can adopt different methods to clamping and alignment, so there also are many kinds of the drilling hole machining work piece clamping methods.
1, if you want to drill rows of holes on large work piece, then you will direct clamp work piece on the workbench, adopt the follower bolt clamp work piece. The clamping position should be symmetrical reasonable, in order to prevent drilling bad workbench, drilling locations can be landed in the workbench’s T slot position, if the hole diameter is greater than the straight flute width, should between artifacts and artifact table mat into the parallel block.
2, if you want to drill uniform holes on work piece, then you will work piece clamp on the dividing head or rotary work table. Such as rectangle artifacts, can use four jaw chuck clamping, then should be clamped to the rotary workbench, the workbench clamping on the milling machine for processing as a whole. After processing a hole, can turn a uniform Angle, to drill next hole. Note: the diameter of the pore distribution round size should mark indicating the location of the hole in advance.
3, if you want to drill a through-hole on the smaller rectangle work piece, then you will adopt machine tool machinery parallel jaw clamping work piece, the work piece and the machinery parallel jaw the guide rail between surface mat into the parallel block, notice parallel block should equal altitude.
4, if you want to drill a radial hole in shaft parts of a cylinder, then the work piece is clamped in the v-shaped blocks of v-shaped slot. Long work piece use contour v-shaped block, platen and bolt installation should be reasonable, platen clamping point location land up v-shaped slot, work piece clamping note two v-shaped block of v-shaped groove surface should be in contact with the circumference surface of the work piece positioning, clamping operation should make two pieces of platen repeatedly clamping step by step.
In addition to the above common artifacts of drilling, there are some more complex drilling machine, such as drilling inclined faces, plane of semicircle holes and roulette etc. , drilling these artifacts can also be reference to the above clamping methods or according to the work piece actual situation to determine the clamping method.