SU1324765A1 - Arrangement for centering along the axis of crankshaft cranks on a lathe - Google Patents

Abstract

The invention relates to metal cutting. The aim of the invention is to improve the machining accuracy by providing cbc centering of the second center hole with respect to the first. Adapters 1 and 2 are placed on the crankshaft. Center slider 3 and 4 are attached to them. To fix the angle of rotation of the cranks, keys 6 of the camshaft sprocket 7 install a dividing device 8. To center the center holes in the center spindles 3 and 4, a countersink is installed in the spindle of the lathe. Dp fixing centroscalers 3 and 4 in the faceplate place the sleeve. 6 Il. p p and p p "-0-gy it 1 m p G | 1 T nil LJ-8 (L p p ig.1

Description

The invention relates to metal cutting.

The purpose of the invention is to improve the processing accuracy by providing a coaxial centering of the second centering orifice relative to the first.

FIG. 1 shows the fastening of the crankshaft to the device adapters; Fig. 2 shows a device for centering crankshaft crankshaft on a lathe, view from the side of fixing one end of the shaft; in fig. 3 - the same, from the side of attachment of the other end of the shaft; FIG. 4 is a view A of FIG. 2; figure 5 - view B in Fig, 1 | in fig. 6 is a sectional view BB in FIG. one.

The device consists of adapters 1 and 2 mounted on the crankshaft, to which centrifugals 3 and 41 are welded. The pin 5 and the bolt 6 serve to connect the flange of the crankshaft to the adapter. To fix the rotation angles of the cranks 7 to the keys 7 of the neck of the distribution gear pinion, there is a separating device eight,

To center the center holes in the centrifugals 3 and 4, a countersink 9 is inserted into the spindle of the lathe, Dp reusable centrifugals Dp is replaced with a replaceable washer 10 on the countersink. For fixing the centrifugals on the plate 11, sleeve 12 is mounted on the countersink. The faceplate has. a seat in which bearings 14 are mounted, the inner diameter of which is equal to the countersink 9 diameter of the mandrel 15 and center 16. Dp clamp centrifugal 3 and 4 the sleeve has a screw 17 with a strap 18 mounted on it, which is connected to the screw with pins 19 To obtain the same The center holes on the countersink are fitted with a ring 20 which is pressed against the bolt 21.

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To connect the camshaft sprocket and adapter 1.2 to the dividing device 8, there are holes for bolts 22 and 23 and for the pin 24. To install the crankshaft connecting rods of the crankshaft, the dividing device 8 is fixed by setting 25. Dp provide for clearance between countersink and centrifugals in rack 26 are inserted pins 27.

The device works as follows.

On the flange of the crankshaft fasten adapter 1 and the centrosteelZ.Na

the sprocket of the sprocket gear and the keys are placed on the dividing device 8, the adapter 2 and the centrosteel 4. The centrosubmitters 3 and 4 must be ground down.

A countersink 9 is inserted into the spindle of the lathe, on which a replaceable washer 10 and a ring 20 are mounted.

Then under the countersink 9 install rack 26, in the hole which

two pins 27 are inserted, the mandrel 15 is inserted into the tailstock quill, but when the second centripulators are centered, the center 16 is inserted into the quill.

on the countersink 9 and the mandrel 15 of the faceplate 11 assembled with the sleeves 12. Install the center-ground grinding discs 3 and 4 into the hole of the two sleeves 12, then install the 25, which fix the separating device 8 on the transverse caliper faceplates to the left pin 27 and bolts 17 clamp the centrifugals 3 and 4. Before centering, remove the left pin 27. After turning on the machine, serve a quill until the bottom ring of the bearing 14 stops in the ring 20. After turning on the machine and centering

the first center hole, unscrews the bolts 17, rotates the pivoting device 8 and clamp the centrifuges with the bolts 17.

Claims (1)

Formula of Invention A device for centering crankshaft crankshaft axes on a lathe, comprising units for fixing shaft ends and coaxially arranged spindles, characterized in that, in order to improve machining accuracy by providing coaxial centering of the second centering orifice with respect to the first, each of the fixing units is made in the form of a faceplate with a recess and an eccentric hole, located in the last bearing mounted in the recess of the faceplate of the sleeve located in the hole of the sleeve of the centrifugal and rigidly connected to the last a hub, and the device is equipped on the adapter of one of the nodes with a fixing mechanism fixed to it. / 3 Fig.Z Crib pinch axis8 C5 sg m p: Si Phi.1.4 1324765 diZb .2 VNISHM Order 2999/9 Circulation 974 Subscription Pro.v.polygres pr-tie, Uzhgorod, st. Project, 4 I.G, & Circulation 974 Subscription