The treatment of hollow axle sleeve reachs its grinder clamping apparatus

036, for face of the cylinder outside bearing installation, precision demand is very high, large base plane reachs the center of F380mm center line tall 103-0.

022, side plane is apart from 275 ± to the flank of central line 0.

04, its precision affects the tine teeth of a cogwheel that delivers torque directly unoccupied place. Because over all dimension of hollow axle sleeve is big, appearance is irregular, place above narrates 3 crucial dimension to become technical key in treatment. Solve a few afore-mentioned difficult problem to analyse the advantages and disadvantages of the machining craft of a few kinds of hollow axle sleeve now, the optimal treatment technology that adopts finaller affirmatory and hollow axle sleeve. The case of one party that hollow axle sleeve machines adopts school tone semifinishing machining is hollow line of center of the circle outside axle sleeve F380mm, make its are in establish the fixed position on the car, by workpiece of ungual clamp of card establishing a car, fine vehicle F380-0.

036 outside round; locates with the circle outside F380mm next, in machining center 7 treatment empty arbor covers large base plane and side plane to assure central tall 103-0.

022 be apart from 275 ± with flank 0.

04. This insufficient place that machines craft is, because this spare parts is erect installation,machine on vertical lathe, when the circle outside be being machined at the same time, ungual cantilever of card of clamp establishing a car is bigger, the treatment precision that establishs a car is relatively inferior, reason uses F380-0 of treatment establishing a car.

036 outside the precision requirement that the circle assures this dimension hard and form tolerancepublic errand. This shows, establish a car to be able to be used at the round semifinishing machining outside 380mm of price of hollow axle sleeve only. The 2nd plan that hollow axle sleeve machines is in hollow axle sleeve above all establish the semifinishing machining on the car, go up in machining center with fixed position of the circle outside F380mm again plane of finish machining large base and side plane; design fixture of bed of harness an animal to cart of arbor of the sky that make, the large base plane with its finish machining and side plane are in hollow axle sleeve locate on clamping apparatus and clamp. Will assure central tall 103-0 by clamping apparatus.

022 be apart from 275 ± with flank 0.

04. One aspect of the matter of this clamping apparatus is passed transfer flange and connection of lathe main shaft, another end installs the top connection of central aperture and lathe tailstock, when methodological disappear is machined besides workpiece, this one treatment is in cantilever condition. This treatment craft can satisfy hollow axle sleeve basically to design a requirement, but surface roughness of the round circularity outside F380mm, surface is not quite ideal, outfit tear open workpiece more complex. The tripartite case that hollow axle sleeve machines is in the circle outside F380mm of hollow axle sleeve above all establish the semifinishing machining on the car and leave proper grinding surplus, machine its in the tip on machining center with fixed position of the circle outside this next large base plane and side plane, last working procedure is in the; of fixed position datum plane of working procedure of the line after serving as with this the treatment on grinder, design fixture of grinder of hollow axle sleeve, with hollow axle sleeve large base plane and side plane locate, grinding machines F380-0.

036 outside round, make sure the center of hollow axle sleeve is apart from and flank is apart from at the same time. 1.

A locates piece 2.

C locates piece 3.

B locates piece 4.

Tick off form pressing plate 5.

Bracket 6.

Main shaft 7.

Balance piece 8.

Pin 9.

Bearing urges a plan sketch map of clamping apparatus of grinder of 2 hollow axle sleeve 2, clamping apparatus of grinder of hollow axle sleeve is like the grinder clamping apparatus of hollow axle sleeve the graph is shown 2 times, with A fixed position piece, B locates a component of horizontal fixed position that serves as workpiece, face of this fixed position is in to the central axes size control of grinder clamping apparatus 103-0.

01, the control of component of side fixed position that with C fixed position piece regards workpiece as should locate the face reachs the center of grinder axes dimension 275 ± 0.

015, workpiece locates on grinder clamping apparatus with large base plane, side plane, use tick off form pressing plate to go to the small aspect impaction of workpiece on the face of side fixed position of grinder clamping apparatus. The via that uses plane of workpiece large base to go up uses snail fasten, gasket to be workpiece clamp on grinder clamping apparatus. The circle outside considering F380mm is a circle appearance of brief Bao Bi and impending condition is in on grinder clamping apparatus, the be heated after grinding allows easy generation to be out of shape, reason installs 3 bearing hammer in workpiece cylinder place, in order to bear grinding force, improved what the canister manages the country to get force case thereby, assured the round appearance public errand outside F390mm. The craft sex that makes from clamping apparatus considers body of this clamping apparatus to use many to assemble, of dimension of facilitating fixed position adjust. Because bracket is in cantilever condition, reason uses 4 especially big bolt to be bracket and couplet of main shaft of grinder clamping apparatus an organic whole, the clue of main shaft center that the tigidity that increased support and carrying capacity; provide relative to Yu Ga because of grinder clamping apparatus and workpiece again has lay particular stress on, when grinding workpiece, affect the round circularity outside F380mm, dynamic balancing test should be done when after so outfit of this grinder clamping apparatus places workpiece, be being used first, outfit balance is added in the proper place of grinder clamping apparatus piece. Because the precision demand of this clamping apparatus is high, must control the fixed position precision of clamping apparatus and grinder strictly so, use dead top talent to realize unoccupied place fixed position of very close to each other only, assure the fixed position precision with this one high demand thereby, accordingly, in the main shaft of grinder clamping apparatus two end make central hole, go up in the hard alloy tip of grinder with aperture of these 2 centers fixed position, fixed position precision is under 1µm, carrying capacity is large, and do not damage central aperture, have correction effect to central aperture. But because weight of this grinder clamping apparatus is great, in surface of aperture of the center when grinding workpiece and top surface rub reject generation quantity of heat, need to besmear in central aperture surface so with 2 vulcanization platinic grease. By grinder dial, pass the pin on grinder clamping apparatus, drive clamping apparatus to make whirligig. 3, conclusion classics produces test and verify, the tripartite case that hollow axle sleeve machines is desirable, the design of clamping apparatus of grinder of hollow axle sleeve broke traditional equipment and machine tool main shaft the configuration of direct link, grow according to length of grinder clamping apparatus, the particular case with high precision, used install clamping apparatus of the grinder when tearing open workpiece and grinder depart, clamping apparatus of the grinder when grinding workpiece locates on grinder tip, the precision of 3 crucial dimension that method of this kind of treatment makes empty arbor is covered and surface roughness all achieved a design to ask. CNC Milling