Heavy aperture Huo makes the same score sealing ring of form of a kind of O tool

Hard alloy razor blade 2.

Spacing is covered 3.

Knife head 4.

Bearing crust 5.

Thrust bearing 8202 6.

202 7 of deep trench ball bearing.

Bearing gland 8.

Washerbed down the livestock 9.

Main shaft 10.

Bolt 11.

Broach pursues assembly drawing of smooth tool of Huo of 2 heavy aperture this tool is covered by spacing 2, knife head 3, bearing crust 4, thrust bearing 5, deep trench ball bearing 6, bearing gland 7, washerbed down the livestock 8, main shaft 9 with bolt 10 composition. Hard alloy razor blade solders to go up in knife head. The cutting angle of knife head: Before horny G=0 ° , hind horny A=5 ° , deputy hind horny A1=0 ° (3) seeing a picture. Process steel when, to reduce the attrition between cutting tool and workpiece, deputy hind 5 ° of ～ of horny A1=2 ° , pour arris. When 3 knives head writtens guarantee composition of a picture is made, the graph should assure the coaxial of knife head and main shaft to spend. Machine main shaft first, one end of the whorl outside main shaft after heat treatment outward outfit is placed to the 3 ungual chuck of lathe, already will machine again good end panel and inside the round steel of whorl comes back tighten main shaft outside on whorl, the external form that processes head giving a knife next and inside aperture. Comply with also answers when grinding knife head this principle, receive solder of hard alloy razor blade knife head to go up above all, when soldering, compare as a result of bit small, can secure with gesso first. Particular way is: Insert as equal as broach degree of finish core club first inside knife head aperture, put bit be about to solder the position, add solder drug water is moved into mushy Tu Fu at bit with knife head between, after plunging into close razor blade with fine copper silk, secure knife head end panel and razor blade with gesso, wait for end panel core club is taken out after gesso is caky, reoccupy gesso fill enters knife head hole inside, wait after gesso is caky, the gesso of round face outside purify knife head, can solder. Come back the knife head that has soldered first tighten tool main shaft outside on whorl; Use clip of 3 ungual chuck to hold main shaft on all-purpose tool grinding machine next, trouble end panel of hard alloy razor blade smooth, round grinding reachs size outside (get namely deputy hind) of horny A1=0 ° ; Adjust dividing head finally, make 5 ° are admired on main shaft, with grinding of emery wheel flank at the back of each razor blade, form the part after 5 ° . When this tool is used, main shaft 9 outfit are placed get collet, knife head 3, broach 11 rotate at the same time with main shaft. The broach in machining a process 11 drill a hole first, scrap of eduction of head of one run the drilling tool into the well is retreated when hard alloy razor blade is close to plane, till reentry knife covers plane of workpiece of bring into contact with to spacing, exit broach can. Adjust the deepness that the position that spacing covers can dominate heavy opening. This tool structure precision of simple, treatment efficiency is tall, tall, use convenient. My factory uses this tool to machine heavy aperture of body of a powerful person on table drilling machine, can control the diametical public errand of heavy aperture in 0.

05mm less than, control of depth size public errand is in 0.

02mm less than. CNC Milling