Benchwork

5mm controls thick plate makings to be when treatment, it is to use scissors to cut commonly, but the appearance of certain work cannot be cut, or after scissors was cut, workpiece is out of shape, the influence is used. Can come with fine saw blade at this moment feed, essentials is to be cut the included angle Yue Xiaoyue between the plane of board makings and saw blade is good, and when beginning to curium, should pull a few times, curium go edges and corners, such saw blade do not die aged, it may not be a bad idea curiums. The 3 nut that tear open rust to die opportunely are in the process that repairs equipment daily, encounter a few nut to did not disassemble for a long time, and rust is to death on bolt, if use spanner to have forced releasing strip, on one hand arduous, also can damage on the other hand parts. Right now, if use undermentioned method,come down with respect to an easily nut discharge. Handlers both hands takes the hand hammer with a same type each, right on hex nut ordinal fight each other forcibly. Essentials is hammer of two tactics enclasp, direction of emphatic of control two tactics and the measurement that use power are equal, two hammer hit the subtense of nut at the same time. Such, the rubiginous dead place of nut and bolt, in two size the master piece with equal opposite way uses next becoming loose. As a result of the size that bring to bear on equal, way is opposite, won't nut batter. Use spanner to tear open nut easily next. The bearing in 4 aperture extraction blind installs the bearing in blind aperture, take out not easily when maintenance changes. For this, use unplug annul implement principle, make a simple tool, take bearing can deftly. When disassembling, the bolster plate that shows like graph 9-6 place first is put into aperture of bearing bottom blind sideways, reoccupy unplugs annul implement bolt comes back to be in aperture of bolster plate whorl, use next unplug sold method takes out bearing. The dimension of bolster plate will be decided according to the model of bearing, list experience computation formula now for reference. ～ 10)mm of L=d+(4 of bolster plate length, b=3/4dmm of bolster plate width, r=9/20dmm of radius of bolster plate circular arc. The D in type is bearing internal diameter. δ of bolster plate ply and blind aperture deepness are concerned, can put in with bolster plate had better. Small doohickey of 5 felt punching cannot find appropriate strong period of the day from 11 pm to 1 am in felt punching, can give Kong Chong with the simple and practical method below. After the position of punching is firm on felt, look for to mix according to the diameter of punching the steel with equal size of punching diameter hole, aim the punching place of felt steel the opening that attend, the diameter that will be more than aperture next (the ball bearing of 5 ～ 10)mm puts in felt punching locally, smash steel ball suddenly with hammer, get the hole of a need. Steel the opening that attend, the hole that should compare a communications center commonly is large (0.

5 ～ 1)mm. With this the method can develop the aperture on asbestine mat and small iron plate. The note when 6 machines tap (when 1) machine tap, should use tap collet, it is especially when whorl of the aperture that attack blind. More important, protect action in order to remove overload, and prevent attaint tap. Force of cutting of susceptive of place of safe tap collet, answer to had adjusted according to the size of tap diameter and pitch. (2) is attacked in length of tap cutting part cut move inside, should bring to bear on on handle of drilling machine feed even pressure, enter work in order to assist tap. Such avoiding a few buckle half-baked grain to be pulled downward when moving drilling machine main shaft, blow whorl sodden. When calibration part enters work, ability general afore-mentioned issueing pulling force is eliminated, rely on to come back naturally into. (The speed of 3) tap, want a foundation deepness of diameter of workpiece material, tap, pitch, screw will choose. It is when screw deepness (when 10 ～ 30)mm, general steel products is (6 ～ 15)m/min; Stainless steel is (2 ～ 7)m/min; Cast-iron for (8 ～ 10)m/min. Below similar requirement, pitch takes low speed greatly. (When 4) attacks via whorl, the calibration part of tap cannot accuse a workpiece end panel completely beyond, otherwise when tap is exited, will produce chaos to buckle. (The cutting fluid when 5) tap, need fibrous root chooses the cutting fluid with good lubricity according to workpiece material, with reducing cutting force is mixed raise cutting tool durability. When attacking the whorl on rolled steel, should choose oil of cutting of the emulsion with big chroma, vulcanization, rape oil and 2 vulcanization molybdenum; When the tap on stainless steel, can use 60% sulfurized oil + 15% oleic acid + 25% kerosene, or 30 black sulfurized oil, machinery are oily; When whorl is attacked on casting pig, general need not cutting fluid, if want to use, usable kerosene or chroma are 10% ～ the emulsion of 15% . The 7 simple methods that avoid small tap to break off are on the workpiece stuff with softer and older tenacity, attack make the whorl hole under M4, especially blind aperture, the deepness of the verticality of the axes that adds tap and workpiece surface and whorl is bad to master, tap breaks off very easily. If use the tap bushing that graph 9-8 place shows, can solve this problem. The characteristic that uses tap of this kind of method is: Tap axes masters as easily as workpiece surface verticality, through changing bushing length, can achieve proper motion to control tap deepness, avoided to change the appearance of awl of fracture of wire. Have profit very much to the young worker of tap of begin to learn especially. This method also applies to the whorl tap of M5 above, the end panel of bushing must with Kong Chuizhi. Be like the screw that attack a horizontal stroke or face upward when screw, need to increase a bedspring and a gasket in the end on bushing only, can control the verticality of screw and workpiece end panel likewise. The slideway of fast rehabilitate machine tool of cut of slideway of 8 machine tools mostly by steel or cast-iron make, occurrence cut of this kind of slideway, should have repair, can make cut expands otherwise, affect a machine tool to use even. Excogitate cut of a kind of slideway to mend a way quickly for this, need only (35 ～ 40)min can end the place rehabilitate of slideway cut, investment is used. Carry out a proof, operation of this kind of method is simple, save time, repair quality is good, cost is low. Law of this kind of rehabilitate is applicable steel or cast-iron slideway. The data that repair uses is (purpose of 160 ～ 200) is reductive iron pink 80% ～ 85% , weight of 15% ～ 20%(compares 502 puissant binder) . The contamination all round its will be reached to keep clear of inside cut place groove first, reoccupy acetone scours this place clean, those who make show metallic noumenon. By need the quantity is reached matching is better than distributing two kinds of afore-mentioned material, use now certainly match now. In the groove that writes the fill material that has made up quickly inside 3min person cut, certain cram squeezing ramming and slideway of summary prep above is planar. After waiting for solidify 20min, had blown with file or drawknife, burnish with fine emery cloth, namely repair ends. When the 9 computational method machinery that adjust ply of washerbed down the livestock are repaired, when the nut that often encounters end panel to open slot screws, the center of the chamfer on the aperture center that attends because of bolt and nut differs an angle, make split pin cannot be put on, adjust ply of washerbed down the livestock to solve with respect to need. Use next type to calculate for this: H=S+P.

The ply of washerbed down the livestock after the H- in A/360 type adjusts: Ply of S- original gasket: The pitch of P- bolt 10 rotate speed are simple and easy worker of computational formula machining, want constantly and ｐ of ａ of deepness of penetration of a cutting tool, feed ∮ and contact with of ｃ of cutting speed υ . ｐ of ａ of make choice of and ∮ , can pull move dial and handle to obtain, and choose ｃ of cutting speed υ , still need beard basis builds diameter or cutting tool diameter in all, again the η of minutely rotate speed that conversion becomes workpiece or cutting tool, pull again start work and obtain. Its correlation type is η ＝ ｃ of 1000 × υ / π .

The η in D (r/min) type - the Rpm of workpiece or cutting tool (ｃ of υ of 　 of R/min) 　 　 - cutting speed (the diameter of M/min)D- workpiece or cutting tool (Mm) by on type can see, producing ｃ of υ of make choice of, calculate again a η , very no-go. But will go up type changes brief will calculate for similar formula: ｃ of υ of η =1000 × / 300 × of π D ≈ υ ｃ / ｃ of D=3 × υ / D × 100(r/min) CNC Milling CNC Machining