PRESS2010_EN

207/1208

U±0.1500±5R10R10R101010101010P＋0.01　0H＋0.01　0P＋0.01　0H＋0.01　0P＋0.01　0H＋0.01　0P＋0.01　0H＋0.01　0P＋0.01　0H＋0.01　0V（P））WH（W・HH・VH・VH・VVPVPa≦0.005b≦0.005c≦0.005c≦0.01P・WV・Hd≦0.005V・H▼The standard tip shapes of block punches are:　E （Ellipse）　R （Corners-chamfered rectangle）　D （Rectangle）　G （Circularity with parallel stop flats） 4 types in totalFor block punches, round type and the other 4 types of tip are processed under the same method. But compared with round punches, the roundness and coaxiality are lower. PUNCH Industry developed a new processing method for block punches, which can ensure the roundness, coaxiality and roughness of round tip to meet the same standard with round punches.▼Features of block punches with tip shape A1．It can adjust the positions of block punches・block dies2．It can ensure the correct mounting directionsehcnuP kcoB00　ーT00＋　L00＋　L00＋　V00＋　V00＋　500＋　500＋　L00＋　L00＋　V00＋　VHW00＋　L00＋　V2－R≦0.3R≦0.3R101.5　0ー0.11.5　0ー0.12－R≦0.3R101.5　0ー0.1 V・P are tested with the same method.0.005A0.005B0.005A0.005BBAWHBACCabcdcM.1.2.2.BB2.2.2.B2.BB....2..l0.005B0.005A0.010.01C0.0050.005C205Shank perpendicularityPrecision of Block PunchesTolerances of block punches can be found in specific pages of the catalog.Products are manufactured according to PUNCH standard.PUNCH standardTip Shape A of Block Punches is Available NowIt is the first time for Punch Industry to standardize tip shape A （round） of block punches,and different dimensions of tip shape A are available now. For position adjustment of a round punch/ button die, the hole on punch/die plate needs to be fixed, and a new hole needs to be processed. Similarly, the hole can also be enlarged for position adjustment. However, for a block punch/ die, it can be achieved by grinding one or two abutting sides of the punch/ die, and fixing the gap with shim.For mounting orientation of a round punch, one or two stop flats need to be added on the head. However, for a block punch, the direction is decided during mounting. Testing itemTip perpendicularityShank parallelismTip parallelism Shank straightnessTip straightnessTip symmetryStraightness of mounting surfaceTesting method