SU614903A1 - Chuck for securing and retaining a crankshaft - Google Patents

Description

(54) CARTRIDGE FOR CLAMP AND FIXING OF CRANKSHAFT

1 The acquisition relates to the area of steel construction, and IRP can be used for machining crankshafts with Freyer's part.

Cartridges are known that contain the BR3M mechanism for moving the clamping fists, the mechanism of fixing of the angular n "w" shaft, and the driven transducer in the axial valve shaft.

The disadvantage of these patches is the possibility of processing the extreme logs and crankshafts.

The purpose of acquiring the provision of DOSTZR on the cutting tool in the extreme to the crankshaft's last four cheeks.

From this point of view, the mechanism of fixing the no.

FIG. 1 shows patrov, axial section; Wah FIG. 2 - type Va cartridge with PSFA.

The cartridge has 1, in which the mechanism of radial locking in clamping and clamping and mechanism of shaft locking in the angle valve is mounted. The mechanism of the radial and axial 4eiKcepi vanilla and the clamp consists of a sleeve 2, which is connected to the stem of the steel thread (shown in the drawing). The sleeve 2., with its projections 3, is connected to the clamps with the rods 4, which are provided with coolant surfaces 5.

In case 1, the clamping Kula 6 of the EB 6 with similar wedge surfaces 5 is movable in the radial direction. For 1 preliminary radially and axial fixation of the blank of the shaft of the shaft, the cartridge has an axially movable center 7 which is compressed by the spring 8 and connects to the shaft 1 2 and has an insert. and thumb 10.

The mechanism for fixing the logging side of the crankshaft in an angular position is derived from a movable sleeve 11 which, by means of a screw 12, is connected to the hydraulic rod of the hydraulic rod (in the drawing

zan). The sleeve 11, with its protrusions 13, is connected to the sliding pins 14, since the second ones are mounted in the housing 1 movably in the axial direction and are connected with the intermixing of the center 7. At the front ends, the pins 14 have bottoming surfaces 15 that interact with the cheek of the root neck 16 billet stake shaft.

The cartridge has strips 17 for pre-orientation of the workpiece and the receiving strips 18,

The cartridge works as follows.

Crankshaft stocking | pre-oriented, loaded into the machine chucks (left and right) and placed on the receiving strips 18. With the oil in the cylinder, the sleeve 11 is shifted towards the workpiece. At the same time with this center 7 under the action

the spring 8 moves to the workpiece in, resting in the center hole, shifts the workpiece in the axial direction to a gesture. stop ha right chuck (not shown in the line). Prv this similar center of truth about the cartridge will enter; A central hole on the right of the end of the workpiece. . Thus, a preliminary radial fixation of the billet in the centers of the cartridges and axial fitting in the longitudinal direction of the swivels occurs. Together with the sleeve 11, the pins 14 move. After passing a certain distance, the pins 14 with their base surfaces 13. come into contact with the base surfaces on the left cheek of the workpiece k, rotate it in the angular direction until required. Thus, an angular locking of the crankshaft head occurs.

Under the action of oil in the hydraulic spindle, the sleeve 2 will begin to move and, with its projections 3, will force the clamping rods 4 to move. After that, commands are given for the flow of oil into the right cavity of the hydraulic cylinder. Under the action of hypute oil 1D. together with the pins 14, it moves to the left and leads out of the Contact the clamping surfaces of the plugs with the surfaces of the workpiece, freeing the cutting tool to access the deep-rooted necks. 16 crankshaft.

The pressing of the workpiece after processing proceeds in a similar way, only the movements of the mechanisms of the cartridge are carried out in the reverse order.

Acquire formula.

A cartridge for clamping and locking the shaft shaft, a compact mechanism for radial movement of the clamping arms, an axial shaft positioning mechanism and a movable axial shaft mechanism, which, in order to provide access to the driver, means that, in order to access the driver, it is possible that the driver has a way that the driver has a chance. extreme to (rotated cheeks of the second half of the shaft, furs of the fixation vnzm in the vvde of the sawn in KOpttyce patrosh parallel to its rotation of the pins moving in the axial directional axis,

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